ANALISIS DAYA TAMPUNG BEBAN PENCEMAR BOD, COD, DAN TSS DI SUNGAI WIDURI DENGAN MENGGUNAKAN SOFTWARE QUAL2KW

Abstract

Oxygen Demand (BOD), Chemical Oxygen Demand (COD), dan Total Suspended Solid (TSS) digunakan sebagai parameter pencemar sungai. Berdasarkan penelitian, didapatkan nilai daya tampung parameter BOD adalah: segmen 1 sebesar 2617,919 kg/hari, segmen 2 sebesar 152,918 kg/hari, segmen 3 sebesar 0,040 kg/hari, segmen 4 sebesar 199,579 kg/hari, parameter COD adalah: segmen 1 sebesar 21815,948 kg/hari, segmen 2 sebesar 1274,314 kg/hari, segmen 3 sebesar 0,318 kg/hari, segmen 4 sebesar 1663,194 kg/hari, dan parameter TSS adalah: segmen 1 sebesar 43631,896 kg/hari, segmen 2 sebesar 2548,627 kg/hari, segmen 3 sebesar 0,635 kg/hari, segmen 4 sebesar 3326,387 kg/hari. Abstract The headwater of Widuri river in Sleman regency, flowing throught side area in Yogyakarta City, and the downstream in Bantul regency. The Widuri river have a lot use as domestic activity. Other that, Widuri river also receive wastewater from agriculture, animal husbandry, fishery, and industrial activity. The purpose of this research is analysis of water capacity from Widuri river using Qual2Kw software. The Qual2Kw software one of many methods that recomended Suspended Solid (TSS) as the pollutan parameter. The result of water capacity in river, the BOD parameter has 2617,919 kg/day in segment 1, 152,918 kg/day in segment 2, 0,040 in segment 3, and 199,579 kg/day in segment 4. The COD parameter has 21815,948 kg/day in segment 1, 1274,314 kg/day in segment 2, 0,318 kg/day in segment 3, and 1663,194 kg/day in segment 4. The TSS parameter has 43631,896 kg/day in segment 1, 2548,627 kg/day in segment 2, 0,635 kg/day in segment 3, and 3326,387 in segment 4. So the water capacity value for all parameter in every segmen has positive value that mean can receive from Widuri river.