Abstract
Alcohol can be traditionally made from agriculture residue fermentation where in Sukonarjo Bekonang the waste is discharged into free water, high levels of Biochemical Oxygen Demand (BOD) and Ammonia make the environment polluted. BOD is a way to characterize the amount of dissolved oxygen needed by microorganisms for the degradation of organic matter under aerobic conditions. Ammonia in surface water comes from urine and feces as well as from oxidation of microbiological organic matter (HaObCcNa), which comes from natural water or industrial and occupant wastewater. By using the Multi Soil Layering (MSL) method which improves soil function for organic wastewater treatment where the soil is a biological, physical, and chemical system that has been used for recycling and waste management for a long time being able to reduce BOD levels from alcohol waste from 51209.6 mg O2/L to 22409.6 mg O2/L and Ammonia levels from 30% to 24% with a fairly low cost.
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