EFISIENSI ADSORPSI ARANG TEMPURUNG KELAPA (Cocos nucifera L) DALAM MENURUNKAN KADAR BOD, COD, TSS DAN pH PADA LIMBAH CAIR DETERGEN RUMAH TANGGA

Abstract

Detergent waste that is disposed of without prior processing can contaminate the waters so that it interferes with the life of aquatic biota and humans around the waters. Detergent waste treatment needs to be done to minimize this impact, one of which is the adsorption method using coconut shell charcoal. The purpose of this study was to measure the efficiency of reducing the levels of COD, BOD, TSS and pH of detergent wastewater using the adsorption method by coconut shell charcoal. This study used a completely randomized design (CRD) with 1 independent variable factor (charcoal thickness) consisting of 4 levels of treatment, namely control (without charcoal), treatment 1 (100cm thick charcoal), treatment 2 (110cm thick charcoal), treatment 3 (120cm thick charcoal), each treatment was repeated three times. The test parameters (bound variable) in this study were COD, BOD, pH, and TSS. The results showed that the A120 treatment had the best reduction efficiency in reducing COD, BOD, TSS and pH levels to 197 mg/L (75%), 101 mg/L (86%), 35 mg/L (69%) and 7 mg/L. However, this grade value does not meet the quality standards of Permen LHK 68/2016. Based on U Mann Whitney's statistical analysis, it is known that there is no significant difference in the thickness variation of coconut shell charcoal on decreasing levels of COD, BOD, TSS and pH.