Kombinasi Filter Bertingkat dan Wetlands Dapat Mengurangi Senyawa Organik Dalam Limbah Blackwater

Abstract

Domestic wastewater treatment on a laboratory scale using an aerobic reactor. The variables studied include several variations, namely the residence time on the filter (5, 10, and 15 minutes) which is then flowed to the plant for a single time (2, 4, 6 days). The observed response is the COD concentration of domestic wastewater starting from the aerobic enfluent to determine the efficiency of COD reduction. Observations were carried out under conditions considered steady state, which in this study was one residence time. The main variable observed in this study was COD (Chemical Oxygen Demand) through a laboratory test process. The purpose of this study is to improve the quality of domestic wastewater from communal blackwater (WWTP) through filtration and continued with wetlands. With the presence of wetlands, in addition to improving the quality of wastewater, it is also expected to reduce unpleasant odors. The data analysis method used is Linear Regression with the help of the SPSS program. The results of the study showed a decrease in COD at a residence time of 15 minutes - 6 days. Chemical Oxygen Demand (COD), from the results of the study showed that the results of the relationship between observation time and COD parameters in vetiver plants showed that there was a significant influence between observation time and COD parameters with a 5 percent error rate. The time coefficient of -2,700 indicates that every 1 minute there will be a decrease in COD in vetiver plants by 2,700 mg/L.