Pengujian Kadar Chemical Oxygen Demand (COD) dan Biochemical Oxygen Demand (BOD) pada Limbah Cair Minyak Kelapa Sawit di Pusat Penelitian Kelapa Sawit (PPKS) Medan

Abstract

Chemical Oxygen Demand (COD) is the amount of oxygen needed to oxidize organic substances in waste. Biochemistry Oxygen Demand (BOD) is the amount of oxygen needed by bacteria to break down residual substances in waste. Testing the levels of Chemical Oxygen Demand (COD) and Biochemistry Oxygen Demand (BOD) in palm oil liquid waste samples was carried out titrimetrically at the Palm Oil Research Center (PPKS) Medan. In testing the COD levels in palm oil waste samples with lab number 15 amounting to 2165.55 mg / l; at lab number 16 COD levels were 19.19 mg / l; at lab number 17 COD levels were 90.50 mg / l; on lab number 18 COD levels were 711.04 mg / l; on the lab number 19 COD levels were 101404.00 mg / l. Samples with lab numbers 15,18,19 have exceeded the maximum standard quality standards while samples with lab numbers 16 and 17 have met the quality standards. In testing the BOD content in palm oil samples with lab number 15 was 1063.81 mg / l ; on the lab number 16 the BOD level was 8.28 mg / l; on the lab number 17 the BOD content was 43.78 mg.l; on the lab number 18 the BOD level was 1.80 mg.l; on the lab number 19 the BOD level was 374.93 mg / l; on the lab number 20 the BOD level was 1.61 mg / l. Samples with lab numbers 15,18,19 have exceeded the maximum quality standards, while samples with lab numbers 16 and 17 have met the quality standards.

Chemical Oxygen Demand (COD) adalah jumlah oksigen yang dibutuhkan untuk mengoksidasi zat-zat organik yang ada pada limbah. Biochemistry Oxygen Demand (BOD) merupakan jumlah oksigen yang dibutuhkan oleh bakteri untuk mengurai zat sisa pada limbah. Pengujian kadar Chemical Oxygen Demand (COD) dan BOD (Biochemistry Oxygen Demand) pada sampel limbah cair minyak kelapa sawit dilakukan secara titrimetri di Pusat Penelitian Kelapa Sawit (PPKS) Medan. Pada pengujian kadar COD pada sampel limbah minyak kelapa sawit dengan nomor lab 15 sebesar 2165,55 mg/l; pada nomor lab 16 kadar COD sebesar 19,19 mg/l; pada nomor lab 17 kadar COD sebesar 90,50 mg/l; pada nomor lab 18 kadar COD sebesar 711,04 mg/l; pada nomor lab 19 kadar COD sebesar 101404,00 mg/l. Sampel dengan nomor lab 15,18,19 telah melampaui batas maksimal standart baku mutu sedangkan sampel dengan nomor lab 16 dan 17 telah memenuhi standart baku mutu .Pada pengujian kadar BOD pada sampel minyak kelapa sawit dengan nomor lab 15 sebesar 1063,81 mg/l; pada nomor lab 16 kadar BOD sebesar 8,28 mg/l; pada nomor lab 17 kadar BOD sebesar 43,78 mg.l; pada nomor lab 18 kadar BOD sebesar 1,80 mg.l; pada nomor lab 19 kadar BOD sebesar 374,93 mg/l; pada nomor lab 20 kadar BOD sebesar 1,61 mg/l. Sampel dengan nomor lab 15,18,19 telah melampaui batas maksimal standart baku mutu sedangkan sampel dengan nomor lab 16 dan 17 telah memenuhi standart baku mutu.