This research output is focused on the modified design of a low-cost biodigester using a 295L of steel drum. The system has a 15kg bio-methane storage tank of 182L with a water displacement tank of 20L standard steel drum. Incorporated into the design is a cast iron with centrally positioned four impeller shaft to enhance mixing of substrate. A floating storage tank was designed, fabricated, and used for effective storage of bio-methane; biogas was produced from mixture of cowdungs, which was filtered to remove substituent of biogas. The retention time was for 4 weeks during which the pH valve and temperature variation were noted. Maximum biogas production was attained on the 8th, 9th, and 19th day, and the total volume of gas produced ranges between 92.6 and 102 mL/day. The test result showed that methane gas produced the highest percentage of biogas. Additionally, from the result, the displacement of ethane, ethylene, propane, propylene, I-butane, nitrogen, carbon monoxide, carbondioxide and other gases were minimal compared to methane gas.

该研究成果集中于使用295L钢桶的低成本生物消化器的改进设计。该系统有一个15kg的182L生物甲烷储罐和一个20L标准钢桶的排水罐。设计中采用了铸铁，其中心有四个叶轮轴，以增强基材的混合。设计，制造了一个浮动储罐，用于有效存储生物甲烷。由牛粪的混合物产生沼气，将其过滤以除去沼气的取代基。保留时间为4周，在此期间记录了pH阀和温度变化。在第8、9和19天达到最大沼气生产量，总产气量介于92.6和102 mL /天之间。测试结果表明，甲烷气体产生的沼气百分比最高。另外，从结果来看，与甲烷气体相比，乙烷，乙烯，丙烷，丙烯，异丁烷，氮气，一氧化碳，二氧化碳和其他气体的置换量最小。