Determination COD of Distillery Slop Wastewater to Increasing of Biogas Production
Keywords:
Biogas, Distillery slop, Chemical oxygen demandAbstract
This study the increasing of biogas production from distillery slop wastewater by finding different Chemical oxygen demand values (COD), Organic loading rates (OLR) in the range of 3.50 - 4.70 kg.COD/m3-day. Batch test was conducted in a 6 l tank and divided into 3 times, (1) COD values of 17,200.00 24,000 35,400 41,200 and 72,000.00 mg/l, cumulative biogas content 0.0001 0.0012 0.0014 and 0.0001 m3/kg.COD respectively. (2) COD values of 25,687.20 27,633.20 and 29,579.20 mg/l obtained cumulative biogas 0.14 0.13 and 0.12 m3/kg.COD respectively. (3) COD value of 23,283.36 mg/l, cumulative biogas content 0.05 m3/kg.COD. From the experiment. It was found that COD 25,687.20 mg/l obtained the highest cumulative biogas was 0.14 m3/kg.COD. Compared with the maximum cumulative biogas of COD 35,400 mg/l is more than 100 times and 2.5 times compared to COD 23,283.36 mg/l. Statistical analysis using the One-Way ANOVA and Tukey method that COD 25,687.20 mg/l was significantly different from other conditions (a = 0 <0.05).
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