Analysis of pollution load carrying capacity of cibatarua river in Pamulihan district, Garut Regency, West Java

Abstract

Pamulihan is one of the Districts in Garut Regency that functions as industrial, recreation, and conservation area. These activities may have an impact on the environment, especially on river. Cibatarua River located in Pamulihan District may be affected by pollutants. The research objectives were to analyze the water quality based on Government Law No. 82/2001 and calculate the pollution load and pollution load-carrying capacity of the Cibatarua River based on Environmental Agency Law No. 113/2003. Water quality parameters include Total Dissolved Solid (TDS), Biological Oxygen Demand (BOD5), Chemical Oxygen Demand (COD), pH, Oil and Grease, and Dissolved Oxygen (DO). The results showed that BOD5 and oil and grease were above the standard based on Government Law No. 82/2001. The pollution load for BOD, COD, pH, oil and grease, and DO were 1,151,712, 3,455.13, 28,792.8, 10,365.40, 1,151.71, and 4,606.84 kg/day, respectively. Meanwhile, the pollution load-carrying capacities for each parameter were 1,094,126.4, -1,382.05, 12,910.69, 1,600.87, -1,151.71, and 0 kg/day, respectively. Our recommendation to improve the river quality includes wastewater management, reducing pollutant release to the river, and implementing biotechnology to reduce water pollution in River.