ASSESSMENT OF GROUNDWATER CONTAMINATION BY LEACHATE AROUND SUPIT URANG LANDFILL, MALANG

• Main Author: HUSNA FITRI ( NIM: 25315015), LISTARI
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/22916
• Institution: Institut Teknologi Bandung

Leachate is one of the problems caused by waste dumping to landfill. Leachate as liquid from decomposition of waste in landfill will infiltrate to soil so it can contaminate ground water and will make an impact for people who use the ground water. This study was conducted at Supit Urang Landfill and RW 5 Kelurahan Mulyorejo, Malang, with aim to identify the chloride and COD contained in leachate and groundwater and to verify Domenico and Robbins (1985) and Domenico (1987) analytical model in predicting contaminant spreading in groundwater. Concentration of model obtained by using Domenico and Robbins (1985) and Domenico (1987) models were developed using MATLAB. The results show, BOD (405,003 mg/L), COD (782 mg/L) and TKN (391,51 mg/L) in leachate have exceeded the standard of Regulation of the Minister of Environment and Forestry Number p.59/ Menlhk/Setjen/Kum.1/7/2016 about quality standards for landfill, while chloride concentration in leachate is 1605 mg/L, which was quite high compared with typical chloride concentrations in landfill that were more than 10 years old. The COD concentration in groundwater from wells and monitoring wells have also exceeded the quality standards Government Regulation No. 82/2001 on Water Quality Management and Water Pollution Control which the standard is 10 mg/L , while the concentration of chloride in groundwater is below the quality standard of Government Regulation No. 82/2001. Based on model simulation results, 1 and 2 dimensional of chloride models simulations give result that model can not predict the spread of chloride in groundwater while 1 and 2 dimensional COD model simulations give result that model can predict the COD spreading in RW 5 Mulyorejo. <br /> <br />