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601	Environmental Engineering	ABS-354
Construction Map Model of Water Location Permits in the Implementation of Licensing for Marine Space Utilization Yackob Astor Politeknik Negeri Bandung Abstract Based on the results of the identification and inventory of existing laws and regulations, there are 12 ministries carrying out sea space utilization activities consisting of sea surface space, sea column space, and seabed space. The 3-dimensional marine space is influenced by dynamic characteristics of the sea which makes recording and administering Marine Space Utilization Location Permits more difficult than recording and administering permits on land.This study makes a Water Location Permit Map model that describes the location of marine space utilization objects and their utilization boundaries. Water Location Permit Map is made using a coastal environment map and a marine environment map from the Geospatial Information Agency, as well as a zoning map of the coastal area from the Ministry of Maritime Affairs and Fisheries. The results obtained that the Water Location Permit Map that was made using existing maps can not yet describe the object of sea space utilization. A larger input map scale is needed, one of which is by taking aerial photography using Unmanned Aerial Vehicle. Visualization of sea space in 3 dimensions can be displayed by classifying Location Permit Maps into 3 layers based on different sea depths namely sea level, sea column, and seabed. Keywords: Water Location Permits; Marine Space Utilization Share Link | Plain Format | Corresponding Author (Yackob Astor)

602	Environmental Engineering	ABS-1127
Blended Learning in Vocational Education Nia Lestari (a), Muktiarni (a), Asep Maosul (a), Agus Haris Abadi (b) (a) Universitas Pendidikan Indonesia (b) Politeknik Negeri Subang Abstract The different characteristics and orientations between vocational and academic education required the design of different learning processes and curricula. The ultimate success of vocational education was not only measured by learning achievement, but also on performance that was in line with the real world of work. Vocational learning paradigm changed in the current era demand, it needed changes in teaching methods that follow the industry trend change, information systems, quality of education and learners which have a significant relationship with the pedagogical methods and the needs of the workforce. This paper focused on it is also clear that the generally accepted concept of blended learning is that it blends some aspects of technology with face to face learning.. From several studies that have been caried out through the literature review method, Blended learning is balanced learning. This balance is achieved by combining the advantages of two learning modalities. Keywords: Blended learning, technology, vocational education Share Link | Plain Format | Corresponding Author (Nia Lestari)

603	Environmental Engineering	ABS-1128
Environmental Quality Model to Have Sustainable Environment Desy Safitri (a*), Arita Marini (b), Sri Nuraini (c), Taufik Rihatno (c), Budiaman (a), Nurzengky Ibrahim (a) a) Faculty of Social Science, Universitas Negeri Jakarta, Jalan Rawamangun Muka No: 1, Jakarta Timur, DKI Jakarta, Indonesia *desysafitri[at]unj.ac.id b) Faculty of Education, Universitas Negeri Jakarta Jalan Rawamangun Muka No: 1 Jakarta Timur, DKI Jakarta, Indonesia c) Faculty of Sport Science, Universitas Negeri Jakarta Jalan Rawamangun Muka No: 1 Jakarta Timur, DKI Jakarta, Indonesia Abstract The aim of this study is to propose environmental quality model in order to have sustainable environment. This survey study distributed the questionnaires to 375 persons of local community in Jakarta in Indonesia using Structural Equation Modeling (SEM). The research found that model suggested was good fit for the data. The study result presents that socio-economic domain have significant positive association with of environmental quality. However, the positive associations between ecological domain and meteorological domain was not confirmed in this study. The use intensity of water resources and food production have significant positive association with ecological domain. However, the relationship between waste management and ecological domain was not supported in this study. Air pollutant, water pollution, and earth temperature have significant positive connection with meteorological domain. Water shortages, human health problems, and community environmental awareness have significantly positive relationship with socio-economic domain. It can be concluded that environmental quality model hypothesized can be used for local community in Jakarta in Indonesia in order to have sustainable environment. Keywords: Environmental Quality Model; Sustainable Environment; Socio-Economic Domain Share Link | Plain Format | Corresponding Author (ARITA MARINI)

604	Environmental Engineering	ABS-361
QUALITY OF CIKAWUNG RIVER WATER BASED ON PHYTOPLANKTON DIVERSITY Mulyani, L.S.(a*), Amarulla, Y.(a), Wahjuningsih, Sri.(a), Muthmainnah, R(a). (a)Program Studi Pendidikan Biologi, Institut Pendidikan Indonesia Garut Jalan pahlawan sukagalih no 32 Garut 44151 *lenibiostkip[at]gmail.com Abstract This research aims to determine the quality of cikawung river water based on phytoplankton diversity conducted in April-May 2019. This research uses descriptive method, with quantitative approach. The sample taken was 10% of the length of the Cikawung river, which is 5 km divided into 3 stations. The sampling technique is done by purposive sampling. The quality of the waters of the Cikawung river can be seen from the diversity index, evenness index and phytoplankton dominance index. The results of the research show that the diversity value is low to moderate. The evenness value is in stable condition. While the dominance index show as labile condition or under ecologys pressure. Broadly speaking, the quality of the waters of the cikawung river based on the diversity index is included in the heavily polluted category. Keywords: Phytoplankton; diversity; evenness; dominance; cikawung river Share Link | Plain Format | Corresponding Author (Leni Sri Mulyani)

605	Environmental Engineering	ABS-362
THE STUDY OF FLY ASH EFFECT AS FERTILIZER Bernaded Oka Anggarani, Rasgianti, Meiri Triani, Ruly B. Sitanggang PT. PLN Puslitbang Ketenagalistrikan Abstract Nowadays, power plants in Indonesia are still dominated by coal-fired power plants which produce 25% bottom ash (BA) and 75% fly ash (FA). The large number of FA produced each day is one of the problems on coal-fired power plants due to Government Regulation no. 101 of 2014 concerning Management of Hazardous and Toxic Waste (B3) which states that FA is included in the category of B3 waste, so that processing cannot be carried out optimally. Therefore, this research intends to conduct a study related to the effect of FA as fertilizer on plants. In this study, FA sample used were FA of Nagan Raya, Labuhan Angin, Suge, Jeranjang and Punagaya. Those five samples were tested for characteristics and heavy metals to determine the content contained on those FA samples. In this experiment, The ratios used between soil and FA is 25% FA: 75% land, 50% FA: 50% land, 100% FA and 100% land. Plant seeds used were chili, corn, and okra. The results of planting for three months showed that the FA Punagaya, FA Jeranjang, and the Nagan Raya FA could grow okra plants, while the Labuhan Angin FA could grow corn seeds at a ratio of 25% FA: 75% soil and 50% FA: 50% soil. Keywords: coal-fired power plant, fertilizer, fly ash Share Link | Plain Format | Corresponding Author (Bernaded Oka Anggarani)

606	Environmental Engineering	ABS-113
Diversity of Sea Cucumbers and Brittle Stars in Intertidal Zone, Karang Papak Coastal, West Java, Indonesia E Paujiah(a), RASDR Putri (b), WT Ardiansyah (a), Rumondang (c) UIN Sunan Gunung Djati Bandung Abstract This study aims to inform the diversity of Sea Cucumber and Brittle Stars in the intertidal zone, Karang Papak coastal, West Java, Indonesia. This research was conducted in June 2018 and February 2019. The method of sampling used line transects systematically using a 1 x 1 meter quadrant. All types of sea cucumber and brittle stars found in the quadrant are calculated, identified and the results was verified by professional researchers from Research Center for Oceanography, Indonesian Institute of Sciences (LIPI). The results showed that were 2 types of sea cucumbers and brittle stars was found in the study sites, namely Holothuria atra, Actinopyga mauritiana and Ophiocoma scolopendrina, Ophiocoma erinaceus. The highest abudance of sea cucumber species is H. atra and brittle star species is O. erinaceus found in the full moon phase.. Its based on the lunar phase which related to environmental conditions such as the influence of light and nutrition. This preliminary data can be used for completed data about Indonesian echinoderms and as additional information in determining the management of aquatic resources in that location. Keywords: Brittle star, Diversiti, Intertidal zone, Karang papak, Sea cucumbar Share Link | Plain Format | Corresponding Author (Epa Paujiah)

607	Environmental Engineering	ABS-114
The Efficiency of Municipal Solid Waste Management by Transforming the Collection and Transport Systems on Wangi-Wangi Island, District of Wakatobi Ira Ryski Wahyuni (a*), Adi Mulyana Supriatna (b), Pranandya Wijayanti (c) a), b) Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung. Jl. A.H. Nasution No 105 Bandung, West Java, 40614, Indonesia *Ira_ryski[at]uinsgd.ac.id c)Urban Sanitation and Development Program (USDP-2), Jl. Lembang No. 35 Menteng Central Jakarta, 10310, Indonesia Abstract Abstract. Wakatobi is the center of the worlds coral triangle with its rich marine biodiversity. Aside from being a conservation area, Wakatobi is also a tourist destination that is demanded to be able to maintain the quality of its environment. One of its challenges is solid waste management. Wangi-Wangi Island is an urban area of Wakatobi that requires attention in solid waste management. Nowadays, the handling of solid waste in this area only covers 54%. Waste collection and transportation systems have not been through good planning. In addition, the limited facilities and the lack of operational costs are the causes of low coverage handling services. This study aims to analyze the system of collecting and transporting to make solid waste management efficient on Wangi-Wangi Island. The research methodologies were conducted by surveying the existing patterns, analyzing the system by transforming the collection pattern and selecting the best transportation route using GIS. The results were obtained by changing the pattern of solid waste transportation from direct to indirect and selected the best route with the fastest travel time. The coverage of solid waste management can be increased by up to 80% with the reduction of transport costs from 46.596 to 31.475 Rupiah/ton. Keywords: environment, solid waste, transport station, waste collection, waste transportation Share Link | Plain Format | Corresponding Author (IRA RYSKI WAHYUNI)

608	Environmental Engineering	ABS-116
Gap Analysis of Environmental Licensing on Oil Palm Plantations in Eastern part of South Sumatra Province Nurul Amri Komarudin (a), Hariyadi (*b) and Tania June (c) (a) Natural Resources and Environmental Management Sciences, Graduate School, IPB University, Kampus IPB Baranangsiang, Bogor, West Java, Indonesia 16129 (b)Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Jalan Meranti, Kampus IPB Dramaga, Bogor, West Java, Indonesia 16680 (c) Department of Geophysics and Meteorology, Faculty of Mathematics and Natural Sciences, IPB University, Kampus IPB Dramaga, FMIPA Building, Wing 19, Level 4, Jalan Raya Dramaga, Bogor, West Java, Indonesia 16680 *E-mail: * hariyadibdp[at]apps.ipb.ac.id Abstract The purpose of this study is to examine the gap analysis of environmental licensing both environmental permits, business licenses, and certification of oil palm plantations and their implementation in the field. This research is conducted in the eastern part of South Sumatra Province, focusing on six private companies in the field of oil palm plantations. Although the area has environmental management policies and regulations, many environmental problems still occur. This is indicated because there is a gap between the development of environmental policies related to licensing and their implementation in the field. The study is carried out using gap analysis method which is a common and simple technique in the evaluation of public policies. The results showed a gap value of less than 0.5 which indicates that the companies have implemented and complied in conducting business activities that refer to applicable environmental policies with the fulfilment of location permits and business licenses. It also signified that all companies have fulfilled the environmental permit component properly. However, there is a gap in terms of ownership of environmental certification. While almost all companies have already acquired ISPO (Indonesia Sustainable Palm Oil) certification, the government needs to provide assistance to companies to increase the companys readiness to complete certification. Keywords: environmental policies, certification, licensing, gap analysis, oil palm plantations Share Link | Plain Format | Corresponding Author (NURUL AMRI KOMARUDIN)

609	Environmental Engineering	ABS-372
Relationship Between Distribution of Phytoplankton with Cimanuk River Water Quality L S Mulyani, R Mardiani, C Ardiana And S Nurkamilah Prodi Pendidikan Biologi, Institut Pendidikan Indonesia, Jalan Pahlawan Sukagalih No.32, Garut 44151, Jawa Barat, Indonesia Abstract Water quality greatly be affected by human activities, such as sand mining, industrial waste, agricultural and household waste. Bodies are part of aquatic ecosystems. In aquatic ecosystems, phytoplankton is the primary food source for aquatic animals. Phytoplankton are plants whose life float and float on the water surface. Phytoplankton can be used as bio-indicators to determine water quality. This reasearch aims to determine the relationship between the distribution of phytoplankton in the water quality. The reasearch was conducted in cimanuk rivers, Garut, West Java. The results were obtained 76 kinds of phytoplankton with 5 different classes, namely: Bacillariophyceae, Chlorophyceae, Euglenophyceae, Cyanophyceae, and Cryptophyceae. Fitopalnkton distribution measured by the abundance (1.077-1710 individual / l), diversity index (2.6014 to 2.9184), evenness index (0.8651 to 0.8797), dominance index (0.8912 to 0.9255) and sprobik coefficient (0.61404 to 1.0). Based on saprobic and correlation coefficients person shows that the relationship between water quality (the intensity of light, brightness, current speed, wind speed) with the distribution of phytoplankton while the pollution level at the level of lightly polluted Keywords: Phytoplankton Distribution, Water Quality, Cimanuk River Share Link | Plain Format | Corresponding Author (Leni Sri Mulyani)

610	Environmental Engineering	ABS-118
Analysis of Groundwater Pollution Vulnerability Using DRASTIC Method Development in Bandung City Adi Mulyana Supriatna (a*), Suprihanto Notodarmodjo (b), Ira Ryski Wahyuni (a) a) Departement of Chemistry, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung, JL. A.H. Nasution No. 105 Bandung, West Java, 40614, Indonesia *adimulyanas[at]uinsgd.ac.id b) Departement of Environmental Engineering, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, JL. Ganesha No.10 Bandung, West Java, 40132, Indonesia Abstract Abstract : Bandung is one of the major cities in Indonesia with a high population density. To meet clean water needs, most people in Bandung use groundwater. Problems related to groundwater are increasing of limited quantity and vulnerability of quality by pollution. The efforts to protect groundwater quality from pollutants can be started by mapping the areas that are vulnerable to pollution. There are various methods to map the pollution vulnerability of an area, one of its is DRASTIC method. The parameter of this method consists of groundwater level, rainfall, aquifer media, soil media, topography, vadose zones, hydraulic conductivity. In this research, this method is developed by adding land use parameters to become more dynamic. The distribution information of groundwater pollution vulnerability can be used as a reference in sustainable development. Accordingly, this study aims to zone the level of groundwater pollution vulnerability in Bandung. The research methodology begins by collecting map data by following the required parameters. Afterward, it is weighted to each parameter by overlaying the map in the Arc.GIS software. The results of this study are Bandung City region has 3 classes of groundwater pollution vulnerability consist of high (22%), moderate (72%), and low (6%) zones. Keywords: DRASTIC, GIS, groundwater, pollution, vulnerability Share Link | Plain Format | Corresponding Author (Adi Mulyana Supriatna)

611	Environmental Engineering	ABS-121
Size Distribution, Length–Weight Relationship and Condition Factor of Three Species Male Fiddler Crab from Jaboy Manggrove Wetland, Sabang, Indonesia I Zulfahmi (1,2), R Marlinda (2), C Nisa (3), E Paujiah (4)*, I Irfannur(5), R Rinaldi (5), NR Purnama (5) UIN Sunan Gunung Djati Bandung Abstract The size distribution, length–weight relationship and factor condition of three species male fiddler crab (Tubuca dussumieri, Gelasimus vocans and Austruca perplexa) from jaboy manggrove wetland, Sabang, Indonesia were examined. 50 samples form each species was collected from three station using digging method and cast net. Samplings were carried out during mei 2019. The carapace length (CL) and total weight (TW) was measured using a digital caliper (standard error: 0.01 mm) and digital scale (standard error: 0.01 g). Result showed that Tubuca dussumieri, Gelasimus vocans and Austruca perplexa were found in the size range of 12.37–17.19 mm, 12.03–16.46 mm, 7.79–10.39 and mm carapace length, respectively. All species of male fiddler crab showed negative allometric growth (b < 3). The highest value of b was founded in Tubuca dussumieri, while the lowest was founded in Gelasimus vocans were 2.659 and 1.299, respectively. Nevertheless, Austruca perplexa has a higher value of factor condition than Tubuca dussumieri and Gelasimus vocans. Keywords: Length–Weight Relationship, Condition Factor, Fiddler Crab, Wetland Share Link | Plain Format | Corresponding Author (Epa Paujiah)

612	Environmental Engineering	ABS-890
The Presence of E.coli Bakteria as a Pollution Indicator at Well of Tanah Sareal Bogor City, Indonesia R Khairunnisa, M F Fachrul , D I Hendrawan Department of Enviromental Engineering, Faculty of Landscape Architecture and Enviromental Technology, Universitas Trisakti, Jakarta, Indonesia Abstract Settlement condition and human activities can cause contaminated of the water. Tanah Sareal Subdistrict in Bogor City is one of most populated area. Generally community use of water from well for the purposes of daily life. This study aims to evaluates the groundwater microbial pollution in Tanah Sareal Subdistric of Bogor City and factors affecting of E.coli contamination in the community well. The influenced by depth of well and distance of the well from the septic tank. The analysis was carried out on 15 wells scattered throughout Tanah Sareal Subdistrict. The water samples is taken 3 times in different times.. The results of the analysis are compared with PERMENKES No. 32 year 2017. Most pollution caused by the activity around the location of samples that are in densely populated areas. According to data from the Bogor City Health Office in 2016 the largest diarrhea case was found in Tanah Sareal Subdistrict, which was 2119 cases. Keywords: groundwater microbial pollution, Tanah Sareal Subdistrict, diarrhea case Share Link | Plain Format | Corresponding Author (Rini Setiati)

613	Environmental Engineering	ABS-123
Toxic Effect of Lead (Pb) Exposure on Hatching Rate and Larvae Abnormalities of Nile Tilapia (Oreochromis niloticus) I Zulfahmi (a), R Nurlian (b), A Sardi (a), E Paujiah (c*), M Muliari (d), Y Akmal (d), R Humairani (d), Maratus Salikho (b) UIN Sunan Gunung Djati Bandung Abstract Nile tilapia (Oreochromis niloticus) is one species of fish that is potentially exposed to pollutants, including lead (Pb). However, the impact of lead exposure on hatching rate and larvae abnormalities of Nile tilapia is still not investigated. Therefore, this study aimed to examine the toxic effect of lead exposure on hacthing rate and larvae abnormalities of Nile tilapia. A total of 2400 fertilized eggs of Nile tilapia was distributed to control and 3 treatment group (0.21, 0,42 and 0.63 mg/L PbCl2) with triplicate. The exposure period lasts for ten days. Cumulative hatching rate, survival rate, malformation rate, heart rate, body length, total lead content and deformities of larvae were analyzed. The results showed that increasing lead concentration significantly increased malformation rate, heart rate, and total lead content in Nile tilapia larvae. The highest malformation rate, heart rate and total lead content observed in treatment C were 3.4%, 115.6 beats/minute and 4.80 mgPb/kg, respectively. Furthermore, Exposed to lead also affect several deformities of Nile tilapia larvae including lordosis, kyphosis, and curved tail. Otherwise, exposed to lead up to concentration 0.63 mg/L PbCl2 have no significant effect on cumulative hatching rate, survival rate and body length in Nile tilapia. Keywords: Hatching, Larvae, Lead, Tilapia, Toxic Share Link | Plain Format | Corresponding Author (Epa Paujiah)

614	Environmental Engineering	ABS-639
IIncreasing community participation in the green technology program trough design and application of alternative mufflers Dewanto, I Made Muliatna, Warju Universitas Negeri Surabaya Abstract The number of motorized vehicles in Indonesia continues to increase rapidly. On the one hand, these conditions facilitate transportation, on the other hand there is a great potential to cause air pollution which is increasingly harmful to humans and the environment. 70% of air pollution is caused by exhaust emissions coming from motor vehicle mufflers. To overcome this, several large manufacturers have equipped motor vehicle mufflers with catalytic converters with expensive materials. Automatic selling prices for vehicles also become expensive. As a result, it is not affordable by weak economic communities. This study aims to find the design and muffler products of motor vehicles with innovative catalytic converters from cheaper alternative catalyst materials, so as to increase public participation in the Green Technology program, which is an effort to minimize the potential risk of environmental and human damage associated with the manufacture and use of technology products new, more environmentally friendly. The method used is an experimental method. This research has produced innovative muffler designs and products, which are inexpensive, environmentally friendly, and able to reduce levels of exhaust emissions, especially CO, and HC. Thus this research product has great potential to increase public participation in the Green Technology program. Keywords: Exhaust emissions, alternative mufflers, green technology Share Link | Plain Format | Corresponding Author (Dewanto Dewanto)

615	Environmental Engineering	ABS-139
THE IMPACT OF MICRO CLIMATE ON INDUCTION AND FLOWERING IN SIAM ORANGE PLANT (Citrus nobilis var. microcarpa. L) Ni Putu Anom Sulistiawati, Ni Komang Alit Astiari. I.Nengah Suaria warmadewa University Abstract About 80% of oranges in Indonesia are Siam orangrs (Citrus nobilis var, microcarpa. L) Constraints that can affect the occurrence of induction and flowering development of Siamese citrus plants are endogenous and exogenous factors of plants. Exogenous factors include microclimate. Micro climate is the climate in a specific region in a wider area Microclimate can be influenced by various factors such as the slope of a plain, wind speed, humidity, irrigation, etc. The Siam orange plant can grow and be cultivated in the lowlands to the highlands (0 to 1500 masl), but optimal below 1000 Micro climate especially RH. the extreme is one of the factors that can determine the occurrence of physiological processes flowering of Siamese citrus plants. Siam oranges require 6-9 wet months (rainy season) and 3-6 dry months (dry) and need enough water especially in July-August (dry season). The purpose of this studywas to study and identify micro climates with high rainfall on the phenology of flowering and fruiting), productivity and quality of Siamese in Badung, Bangli and Gianyar. The assessment method was observed in citrus centers with a plant age of 4 to 11 years from 2014 to August 2018. The results showed high rainfall occurring throughout 2014 (the dry season did not occur), a flowering phenology disorder that had occurred before the Siamese citrus plants flowered 1 to 3 times a year to 4 to 6 times a year. The number of flowering periods is not supported by the number of flowers formed because the flower miscarried before the fruit-set formed, high deciduous flowers supported by the large number of leaves formed at the location of the garden whose height is less than 1000 meters above sea level (masl). Location of citrus orchards which applies an integrated management system to. New potentials are obtained for the cultivation of Siam oranges, namely dry land/dry fields and sandy soil which were originally planted in paddy fields. Keywords: Fruit-set, induction, phenology, rainfall, Siam orange Share Link | Plain Format | Corresponding Author (Ni Putu Anom Sulistiawati)

616	Environmental Engineering	ABS-395
Information Technology as A Less Resources Consumption System to Support River Water Quality Monitoring Activity in Indonesia Yonik Meilawati Yustiani, Syakir Ramadhan, Sri Wahyuni Universitas Pasundan Abstract The current river’s condition in Indonesia has decreased in water quality, especially in big cities. The rivers have been polluted by domestic and non domestic waste. Therefore, the Government has to monitor rivers water quality periodically to see its condition of the rivers water quality. Utilization of the information technology in river quality monitoring is one of the less resources consumption. This study aims to investigate the development of information technology in big cities in order to support to monitoring river water quality. This study is carried out with literature and references reviews as well as expert interviews. The results showed that the information technology has not yet been applied to monitor rivers in Indonesia. Several efforts have been started, but the systems are still incomplete. Although smart water program has been adopted in Indonesia, it shows problem in its sustainability due to financial difficulty, devices durability, and connection instability. To overcome these obstacles, it is recommended that government should have strong inter-collaboration between divisions and partnership with other institutions. Keywords: information technology, smart water, river water quality Share Link | Plain Format | Corresponding Author (Syakir Ramadhan)

617	Environmental Engineering	ABS-908
Van Soest and Mineral Analysis of Wild Buffaloes Feces (Bubalus bubalis L.) in Savana Baluran National Park, East Java Indonesia Elsa Lisanti1, Ratna Dewi Wulaningsih2 and Arwin3 1 Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Kampus A, Gedung Hasjim Asjarie Lt. 5. Jl. Rawamangun Muka, Jakarta Timur, 13220, Indonesia. Email : elsalisanti[at]unj.ac.id 2 Department of Biology Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Kampus A, Gedung Hasjim Asjarie Lt. 5. Jl. Rawamangun Muka, Jakarta Timur, 13220, Indonesia. 3 Center Isotopes Radiation Application - National Nuclear Energy Agency of Indonesia, Jl. Raya Pasar Jum’at No. 49 Jakarta Selatan, 12440, Indonesia. Abstract Abstract. Climate change has affected livestock production systems through impair feed intake, metabolic activities and defense mechanisms. Furthermore, It is also caused the greatest reduction of herbage yield and increase lignifications in plant tissues and hence decrease the digestibility of forage by the animal. Research of the Van Soest and mineral analysis of wild buffaloes feces sample (Bubalus bubalis) in Savana Bekol, Baluran National Park, East Java. The research was conducted in June 2019. Objectives: The aim of research to know Van Soest analysis of wild buffaloes feces sample, so we know the type of plant that consumed. Methods: Observations were carried out by withdrawal feces sample with purposive sampling. Observation time is carried out for 8 hours (8.00-16.00). Van Soest analysis was conducted at Laboratory of Nutrition Technology of Animal Husbandry Faculty, Bogor Agricultural University. Results: The result for Van Soest analysis were Neutral Detergent Fiber (NDF) (71.60%), hemicellulose (23.19%), Acid Detergent Fiber (ADF) (48.41%), cellulose (2.22%) and lignin (32.91%). Mineral analysis showed that feces of buffaloes consists of Nitrogen Free Extract (NFE) (32.05%), Calsium (Ca) (2.00%), Phosfor (P) (0.52%), and Natrium Chloride (NaCl) (0.10%). Conclusion: These results indicate the NDF, hemicelluloses, cellulose of wild buffaloes were lower than pet buffaloes, but ADF and lignin of wild buffaloes were higher than pet buffaloes. Keywords: Baluran, feces, mineral,Van Soest, wild buffaloes Share Link | Plain Format | Corresponding Author (Elsa Lisanti)

618	Environmental Engineering	ABS-397
Effect of nuclear radiation on mutation chromosomes of shallots cells Ambar Sulianti, Hasya Fadhila Riyadhi, Ida Kinasih, Putu Sukmabuana UIN Sunan Gunung Djati Abstract Environmental pollution by nuclear radiation has been known to endanger chromosomes. The aim of this research is to analyse the abnormal forms of red onion chromosomes which are irradiated by nuclear with various levels of radiation. The is a quasi-experimental research. The treatment group was given radiation through nuclear reactors at a dose of 11.88 rad, 8.69 rad, 1.28 rad, 1.15 rad, 0.26 rad, 0.0034 rad, 0.00016 rad, while the control group was without radiation. The staining of the preparations was carried out using Acetocarmine 2%. Reading preparations using a microscope with a magnification of 400x. The results of the study showed the emergence of various forms of chromosomal abnormalities. Abnormal forms that appear are pole to pole arrangement chromosome, unequal separation, binucleate cell, pulverized ball metaphase, sticky anaphase with broken bridge, chromosome rosette, abnormal chromosome fragment, early cell plate formation at late anaphase, sticky metaphase, binucleate cell with a bridge, chromosome fragments, binucleate cells, chromosome gaps, ball anaphases with a diagonal scattered anaphase bridge, and aberrant grouping at anaphases in a giant cell. The novelty of this preliminary study is that chromosomal abnormalities in the onion roots were found even in the very low radiation group. Large-scale research is required and their effects if eaten by animals or humans needs further research. Keywords: Nuclear radiation, mutation, chromosome, shallot Share Link | Plain Format | Corresponding Author (Ambar Sulianti)

619	Environmental Engineering	ABS-142
Flue Gas Desulfurizer Mass and Energy Balance in 300 MW class Subcritical Coal Fired Power Plant for Retrofit Application. Muhammad Arif Susetyo (a*), Alfian Muhammad Reza (b), Firman Bagja Juangsa (c), Yanda Prakasa (d) a) PT PLN Unit Induk Pembangunan Jawa Bagian Tengah I *m.arifsusetyo[at]pln.co.id b) PT PLN Enjiniring c) Fakultas Teknik Mesin dan Dirgantara Institut Teknologi Bandung d) PT PLN Pusat Pemeliharaan Kelistrikan Abstract Based on the recent implementation of Ministry of Life and Environment (MOLE) Regulation No. P.15/MENLHK/SETJEN/KUM.1/4/2019 regarding Power Plant Flue Gas Emission, in replacement of MOLE Regulation No. 21 year 2008, there is a reduction of maximum Sulfur Dioxide (SO2) concentration in flue gas emission of Coal Fired Power Plant (CFPP), from 750 mg/Nm^3 @7% O2 content (dry basis), to 550 mg/Nm^3 in existing CFPP, and 200 mg/Nm^3 in CFPP constructed after the implementation of the regulation. Thus, arises the necessity for consumption of Coal with lower sulfur content, and/or retrofitting of Flue Gas Desulfurizer System (FGD) system in CFPP, not yet equipped with FGD system. One of the apllicable system for retrofit is Sea Water FGD (SWFGD). This paper explores the energy and mass balance of SWFGD system for application in 300 MW subcritical reheated steam CFPP. Certain characteristics of the system is +7 Celcius condenser cooling water temperature increase, instead of +5 Celcius in come CFPP with SWFGD integrated in its design. Operational aspect such as additional increase in condenser cooling water due to SWFGD Absorber interface, and relation between maximum sulfur content in coal in relation to unit partial load is quantified. Keywords: Emission control; Power generation; Sea Water Flue Gas Desulfurization; Coal Fired Power Plant; Sulfur; Combustion Share Link | Plain Format | Corresponding Author (Muhammad Arif Susetyo)

620	Environmental Engineering	ABS-656
River Water Quality Modeling as a Supporting Tool of River Management in Indonesia Yonik Meilawati Yustiani, Enggar Munji Wicaksono, Sri Wahyuni Department of Environmental Engineering, Pasundan University Abstract ABSTRACT Many urban river water qualities in Indonesia have decrease due to both domestic and non domestic wastewater discharges. One effort in restoring the river quality is by modeling of the river to determine the most appropriate actions to take. At present many river modeling have been carried out in order to restore river water quality. However, implication of modeling utilization is still insignificant. This study aims to investigate the application of water quality modeling in Indonesian urban rivers. Methods used in this study including expert interviews, previous research review, and data analysis. The research result gives condition that modeling is merely applied in limited function. Stakeholders sometimes doubt the modeling results. It is caused by several aspects of uncertainty, such as river discharge fluctuation, unstable pollution concentration, etc. In addition, the model used is often obtained from sub-tropical area, so there is a disparity of conditions with the environment in Indonesia. Nevertheless, water quality modeling plays an important role in environmental impact assessment as a prediction tool in Indonesia. Keywords: urban river, water pollution, water quality modeling Share Link | Plain Format | Corresponding Author (Enggar Munji Wicaksono)

621	Environmental Engineering	ABS-914
Diversity of pollinator insects on inorganic plantation horticulture plants in Muaro Jambi Darma Putra*, Try Susanti, Risnita, Bayu Kurniawan, Baso Ampa Department of Biology Education Suthan Thaha Saifuddin State Islamic University (UIN), Jambi, Indonesia Abstract Pollinators are insects that play an important role in food security, especially on horticultural plants that help in the pollination process. The application of pesticides on horticultural crops has direct or indirect effects on population decline, survival, and quality of life of pollinators on inorganic plantations. This study aims to determine the diversity and abundance of insect pollinator species on the application of pesticides that affect the presence of pollinators on inorganic plantation horticultural crops in Muaro Jambi. This research was conducted in April - May 2019 using an explorative method by exploring the location of the research, the time of insect observation at 07.00-16.00 h. Insects collected were identified based on morphological characters and matched with the determination key. Data were analyzed using the Diversity index (Shanon-Wienner) and Dominance (Simpson). The results of the study were obtained 166 individual pollinators consisting of 2 orders, namely the order of 7 species of Lepidoptera and 2 orders of Hymenoptera. The predominant species, Apis melifera, were 66 individuals. Shannon Wienner diversity index is 1.92 and simpson dominance index is 0.18. Overall, the Diversity Index value of inorganic plantation horticulture is included in the category of Medium Diversity. Keywords: diversity, pollinators, horticulture, inorganic plantations Share Link | Plain Format | Corresponding Author (Darma Putra)

622	Environmental Engineering	ABS-150
THE EFFECT OF HYDROPONICS SYSTEMS ON THE GROWTH OF LETTUCE Budy Frasetya(a)*, Kundang Harisman(a), Nur Aisyah H. Ramdaniah(a) a)Agrotechnology Department, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung *)budyfrasetya[at]uinsgd.ac.id Abstract Shifting patterns of consumption in urban communities to consume pesticide-free and clean vegetables encourage the development of hydroponic cultivation in urban areas. In hydroponic lettuce cultivation, resource efficiency in the production stage is vital to be implemented so that the profits of hydroponic farmers increase. This study aims to provide recommendations for a more efficient hydroponic system to increase the growth of lettuce plants. The research method used in this study was a complete randomized design consisting of five treatments that were replicated five times. The treatment consists of five types of hydroponic installation systems, namely: A = Nutrient Film Technique System (NFT), B = Deep Film Technique System (DFT), C = EBB and FLOW Systems, D = Aeroponic Systems, and E = Floating Raft System. The parameters observed to measure the effectiveness of each system in increasing the growth of lettuce plants are plant height, leaf area, fresh weight, and shoot-root ratio. The observational data were then analyzed using analysis of variance at 5% significance level and Duncans test at 5% level. The results showed that the NFT hydroponic system of lettuce plants was 6%-10% more efficient compared to the floating raft system and DFT system in increasing yields. Keywords: hydroponic system type, hygienic lettuce, urban farming Share Link | Plain Format | Corresponding Author (Budy Frasetya Taufik Qurrohman)

623	Environmental Engineering	ABS-155
Noise Mapping in Campus A Rawamangun - Jakarta State University Environment and Its Effect on Academic Atmosphere Tri Mulyono (a), Doddy Rochadi (b), Irika Widiasanti (b) (a) Transportation Departement, Faculty of Engineering, State University of Jakarta, Jalan Rawamangun Muka, Jakarta 13220, Indonesia. *) trimulyono[at]unj.ac.id (b) Faculty of Engineering, State University of Jakarta, Jalan Rawamangun Muka, Jakarta 13220, Indonesia Abstract The aim of this research was to map the noise level. The survey method with a questionnaire for 30 respondents taken at random was used to obtain data on effects on the academic atmosphere during the period August - October 2019. Measurement noise levels based on Equivalent Continuous Noise Level Data during the day (L_S), night (L_M) and one-day (L_SM). This data is collected from 256 coordinates by a digital sound level meter and two application software. Mapping using the Surfer application ver11, results show that the noise level catagory into 5 areas: (1) Red zone, 75-80 dB(A); (2) Yellow zone, 65-75 dB(A); (3) Green zone, 55-65 dB(A); (4) Dark blue zone, 50-55 dB(A); and (5) the blue/bright zone, 45-50 dB(A). Noise levels in near or inside building and students gather is close to the threshold. At near to highways, canteen and near housing, open space and parking area indicate that exceed the threshold of 55 dB (A) and 33.1% of students feel disturbed when the noise level is at 61 + 3 dB(A). As a result, to improve the academic atmosphere, the area near the highway built physical barriers or tree planting and manage the parking area better. Keywords: Noise Level Map, Noise Level, Academic Atmosphere Share Link | Plain Format | Corresponding Author (Tri Mulyono)

624	Environmental Engineering	ABS-163
Science Literacy Ability of Students towards Drought Mitigation in Bekasi A K Syahbani, F I Kharisma, C Rochman, R D Agustina Universitas Islam Negeri Sunan Gunung Djati Bandung Abstract Drought is a natural disaster caused by rainfall deficit in a certain period of time which causes inadequate availability of water for human activities and the environment. Drought is a complex natural disaster that affects large areas. The purpose of this study is to describe the profile of students scientific literacy ability to mitigate drought in Bekasi. This research method uses a descriptive qualitative method approach. The results showed that the average value of the scientific literacy ability of students on drought disaster mitigation of 41.46% in the low category. This can be used as reference for the preparation of instructional media in improving students scientific literacy. Keywords: Disaster Mitigation, Drought, Instructional Media, Science Literacy Share Link | Plain Format | Corresponding Author (Abdul Karim Syahbani)

625	Environmental Engineering	ABS-164
Science Literacy of Students towards Windstorm Mitigation in Cirebon E A Fitriyani, L S Agnia, C Rochman, R D Agustina Universitas Islam Negeri Sunan Gunung Djati Bandung Abstract Indonesia has a high number of potential natural disasters, one of which is the windstorm disaster. The occurrence of a windstorm disaster cannot be predicted or measured with certainty so that a windstorm often results in losses and many casualties. Therefore, to reduce the risk of disasters it is necessary to have a socialization of disaster mitigation that can be done by increasing the scientific literacy of the community. The purpose of this study is to present the profile of students physical literacy towards windstorm mitigation in Cirebon Regency. The research method used is descriptive qualitative. data collection is done by distributing literacy instruments consisting of four questions about the process, concepts, context, and attitude of students in responding to the phenomenon. The results showed that the scientific literacy of students on the windstorm disaster was still relatively low in terms of process knowledge and attitudes, and was classified as moderate in the context and concept aspects. The results of this study can be used as a reference for the preparation of instructional media in improving students scientific literacy. Keywords: Disaster mitigation, Instructional media, Literacy, Windstorm Share Link | Plain Format | Corresponding Author (Elok Afifah Fitriyani)

626	Environmental Engineering	ABS-165
Diversity of Marine Culture as a Strategy to Protect the Livelihood of Small-Scale and Seagrass Conservation on the South Coastal Region of Lombok Island, Indonesia Abdul Syukur, Agil Al Idrus, Lalu Muhammad Imam Husaini M. Nasir and Pahmi Mataram University Abstract Small-scale fishermen are community groups that play an important role in maintaining food security and social stability. The purpose of this study is to describe the diversity of culture and its contribution in maintaining the economy of small fishermen and seagrass conservation. This study uses the method of observation, surveys, interviews and questionnaires, and data analysis using descriptive statistical analysis and regression. The results showed that the potential for marine cultivation (seedlings) has considerable potential to be developed. However, cuttlefish and baronang are two superior commodities to be developed by small fishermen at the study site. Two variables that contribute significantly to Cultivators income are the level of education and length of cultivation. Meanwhile, farmers have internal regulations to protect the environment, especially in seagrass areas. The conclusion of this research is that aquaculture is a solution to maintain the economic resilience of small fishermen. On the other hand, it can be an effective part of preserving the marine environment. Therefore, marine aquaculture can be a model in strategies to strengthen the economy of local communities and protect marine biodiversity, especially in research locations and other relevant places in Indonesias coastal areas Keywords: Diversity aquaculture, Small-Scale, Livelihood and Seagrass Conservation Share Link | Plain Format | Corresponding Author (Abdul Syukur)

627	Environmental Engineering	ABS-167
Application of Paclobutrazol and Electrical Conductivity Value of Nutrient Solutions to Improve Yield and Quality Cucumis sativus L var Japanese on The Hydroponic System Adjat Sudrajat(a), Budy Frasetya T. Qurrohman (a*), Fedora G. Daniswara(a) a)Agrotechnology Department, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung Street A. H. Nasution 105 Bandung 40614, West Java, Indonesia *)budyfrasetya[at]uinsgd.ac.id Abstract Many factors influence the yield and quality of hydroponically cultivated Japanese cucumber plants. This study aims to study the interaction of Paclobutrazol and the Electrical Conductivity (EC) of nutrient solution to improve the yield and quality of cucumbers. The study was conducted in February 2019-April 2019 at the greenhouse of Universitas Padjadjaran, Jatinangor. The research method used was a split-plot design consisting of two factors and 3 replications. The first factor is the value of EC n1 = (2.0-3.2 mS cm-1), n2 = (2.0-3.4 mS cm-1) and n3 = (2.0-3.6 mS cm-1) ) and the second factor is Paclobutrazol concentration p1 = 0 ml l-1, p2 = 0.375 ml l-1 and 0.75 ml l-1. The parameters of growth and yield of plants observed were leaf area, age of flowering, number of male and female flowers, number of fruits, fruit weight, and percentage of normal fruit shape. The observational data were then analyzed by the variance analysis of 5% significance level and continued with Duncans test at 5% level. The results showed there was no interaction of Paclobutrazol factors and EC of nutrient solution values. Plant growth without the application of Paclobutrazol and EC generative stage 3.2 mS cm-1 yields better crop quality and yield. Keywords: fruit quality, paclobutrazol, split-plot design Share Link | Plain Format | Corresponding Author (Budy Frasetya Taufik Qurrohman)

628	Environmental Engineering	ABS-937
Initiation of Harmful Algal Blooms as a Bioindicator of Water Environmental Quality at Coral reefs ecosytem in the Tidung Island Kepulauan Seribu Ratna Komala, Mieke Miarsyah, Eka Putri Azra, Moh Isnin Noer Department of Biology , Faculty of Mathematics and Natural Science, Universitas Negeri Jakarta , Indonesia Abstract The study was conducted to analyze the harmful microalgae population that has the potential to cause Red Tide in coral reef ecosystems, and analyze environmental parameters that affect its population on the Tidung Island of the Thousand Islands. Observations were made in May to October 2019 with descriptive research methods with direct observation techniques. The results showed that 34 genera of microalgae were identified as belonging to 4 main classes, namely Bacillariophphyceae, Dinophyceae and Desmidiaceae. Population fluctuations are the highest in August and the lowest in June. The highest abundance of microalgae is represented by the genus Skeletonema. Several genus of Harmfull algae are identified but have no potential to cause Red Tide because their abundance is still in a safe condition which is under 1 million individuals / m3, and the diversity is classified as moderate so that the environment is still in good enough quality. Environmental parameters that affect the temporal microalgae population are turbidity, Biologycal Oxygen demand (BOD), Total Dispended Solid (TDS) and Nitrite (NO2) Keywords: Harmful algal blooms, Environmental quality, Coral reefs Share Link | Plain Format | Corresponding Author (Ratna Komala)

629	Environmental Engineering	ABS-170
students creative thinking skills of environmental change material using group investigation learning model with interactive multimedia meti maspupah, desti rahmawati, risa nur alawiyah, ai anita nurlaela, UIN Sunan Gunung Djati Bandung Abstract Group investigation learning model are used to overcome the fundamental problems of students creative thinking abilities in environmental change material. This study aims to describe the planning, analyze implementation, and test the hypothesis of the application of of the group investigation model assisted interactive multimedia on students creative thinking abilities on environmental change material. The research method used was a pre-experimental design with one group pretest-posttest. The sample was determined by purposive sampling techniques in two classes, namely class X IPA-4 and X IPA-5. The results of hypothesis testing using paired t test in class X MIPA 4 obtained t count (19.70)> t table (2.03) and in class X MIPA 5 t count (19.05)> t table (2.04). The conclusion is t count > t table, then H0 is rejected and H1 is accepted, meaning that there is a significant difference between of students creative thinking abilities in environmental change material before and after the application of the group investigation models assisted interactive multimedia Keywords: Group Investigation, planning, implementation, creative thinking abilities Share Link | Plain Format | Corresponding Author (meti maspupah)

630	Environmental Engineering	ABS-938
Population Growth Model of Anadara granosa Based on Correlation Between Dimension of Shell with the Weight at the Water Environment of Sunda Strait Ratna Komala and Friska Zahara Department of Biology , Faculty of Mathematics and Natural Science, Universitas Negeri Jakarta , Indonesia Abstract Exploitation of shellfish resources can affect growth which can be seen from changes in the size of the shell dimensions including length, width and height. The study was conducted to determine the relationship of the dimensions of the shell with weight as a description of growth patterns, and to determine the environmental factors that affect shell growth. Descriptive method with direct observation technique was carried out at 3 observation stations in the Sunda Strait waters. Data were analyzed using power regression, while the correlation of environmental parameters were analyzed by PCA. The results of the analysis show the correlation between the dimensions of the shell and the total weight of the shell is allometric negative (b <3), which is an unbalanced growth between the dimensions of the shell and the weight of the shell, so that the shell growth pattern is indicated by increasing the width, length and height faster than the body weight. The parameters that affect the dimensions of the shell and weight are NH3-N, NO2-N, BOD, salinity, depth, TOM, Temperature, and PO4 Keywords: Growth model, Shell dimensions, Weight, Sunda Strait Share Link | Plain Format | Corresponding Author (Ratna Komala)

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