Co-Treatment of Rural Kitchen Waste and Domestic Sewage to Produce Biogas Research
In order to deal with rural kitchen waste and domestic sewage properly, they were held in a reactor for co-treatment to produce biogas. The inflow was set as 50ml, 100ml and 150ml. The cycle was set as 3-day and 5-day. The effect of different inflow and cycle on the co-treatment was investigated during 45-day experimental period. The result showed that accumulative methane production had a positive correlation with inflow and cycle. Accumulative methane production of 150ml-inflow was better than that of 50ml-inflow. It multiplied 4.2 times during 3-day cycle and 1.2 times during 5-day cycle. Accumulative methane production of 5-day cycle was better than that of 3-day cycle at the same condition of inflow. It multiplied 4.8, 3.7 and 1.5 times, respectively. The quality of effluent was monitored as follows: CODCr > 10,000mg·L-1, TN ≈ 600mg·L-1, TP ≈ 100 mg·L-1. It could be serviced as the liquid fertilizer used in the agriculture fields. Rural kitchen waste and domestic sewage were disposed as fertilizer and used in situ.
D. L. Li et al., "Co-Treatment of Rural Kitchen Waste and Domestic Sewage to Produce Biogas Research", Advanced Materials Research, Vol. 340, pp. 467-472, 2012