Utilization of Water Hyacinth Assisted Biofilter to Reduce Ammonia Levels In Tofu Liquid Waste
Dewi Yunia, Yulia Sukmawardani, Cucu ZS

Universitas Islam Negeri (UIN) Sunan Gunung Djati Bandung

Abstract

Phytoremediation is used by using aquatic plants in reducing the levels of pollutants from a waste. The type of plant used is adjusted to the pollutants that will be lowered. In addition, biofilter can also reduce levels of pollutants. This study aims to reduce the ammonia levels in liquid waste that are known by utilizing water hyacinth plants as phytoremediation and the use of wasp nest biofilter for the use of grade substitutes. Tofu wastewater treatment using biofilter and phytoremediation process is carried out with a variety of residence times. Ammonia content analysis in this study used the kjeldahl method consisting of three layers such as destruction, distillation, and titration. The type of titration used in this method is acid-base titration. The result of waste treatment using phytoremediation assisted by biofilter and analyzed using the kjeldahl method showed that variations in residence time for 8 days were more effective in reducting ammonia levels to reach a percentage above 87%. This show that the use of water hyacinth and biofilter is effective in reducing ammonium levels in tofu liquid waste.

Keywords: amonia, tofu liquid waste, water hyacinth, wasp nest biofilter, kjeldahl method.

Topic: Chemistry