IDENTIFICATION OF HEAVY METAL Cu AND Cr ON PADDY FIELD AFFECTED FROM WASTE OF TEXTILE INDUSTRY BASED ON VALUE OF ELECTRIC CONDUCTIVITY: Case Study Jelegong Village Rancaekek Subdistrict
Eleonora Agustine1, Dewi Gusti Nur Anesta1, Dini Fitriani1, Kartika H Kirana1, Yudi Rosandi1, Muhammad Amir Solihin2, Anne Nurbaity2, and Silvia Jannatul Fajar3, Wahyu Srigutomo4

1Geophysics Department, Faculty of Mathematic and Natural Sciences, Universitas Padjadjaran, Jl.Raya Bandung-Sumedang Km.21, Sumedang, West Java, Indonesia
2Soil Science Department, Faculty of Agriculture, University of Padjadjaran, Jl.Raya Bandung-Sumedang Km.21, Sumedang, West Java, Indonesia
3Global Geophysics Research, Faculty of Mining and Petroleum Engineering, 
Institute Technology Bandung, Jl. Ganesha No.10, Coblong, Bandung, West Java, Indonesia
4Physics Department, Faculty of Mathematic and Natural Sciences, Institute Technology Bandung, Jl. Ganesha No.10, Coblong, Bandung, West Java, Indonesia

corresponding author: eleonora.agustine#[at]unpad.ac.id

Abstract

Detection of Cu and Cr heavy metals contents in wetland areas exposed by textile industry waste based on electrical conductivity value has been done in Jelegong Village rice field, Rancaekek subdistrict, Bandung regency, West Java. This research location is an active rice field with the surrounding area that has undergone a transformation of land conversion from an agricultural area to a factory and industrial area. The condition affects the local environmental quality, especially the indication of soil pollution containing dangerous heavy metal elements. Soil contamination can be identified from changes in the character or nature of the soil, one of which is the nature of the soil^s electrical conductivity and the soil^s chemical content (containing heavy metals). The research was conducted to find the distribution of soil conductivity value using HUMA EC-01 and supporting data using the AAS (Atomic Absorption Spectrophotometry) method. Measurements were carried out on dry fields with a 5 x 5-meter wide land area, seven lines, and five ground point sampling. The results showed that conductivity values varied from 0.12 to 11.25 mmhos/cm. The conductivity data is supported by heavy metal content data, which is high above the critical limit of> 2 ppm. The content of heavy metals Cu (copper) reached 4-4,7 ppm, and heavy metal Cr (chromium) as much as 7-51 ppm. The correlated research data strongly indicates that the indication of wetlands in the research location is conducive to the high pollution level above the critical limit.

Keywords: paddy fields, heavy metal, pollution, electrical Conductivity

Topic: Physic