The effect of drinking water treatment sludge (DWTS) as a mixture additive, on biogas and methane production from food waste was studied. Mesophilic anaerobic digestion of food waste with 5 concentrations of DWTS (0, 2, 6, 12, and 18 ppm) was carried out. It was found that DWTS can significantly enhance biogas and methane yield. The highest biogas (671 Nml/g VS) as well as methane yield (522 Nml/g VS) was observed when 6 mg/kg DWTS was added. This is equal to 65 and 58 percent increase in comparison with the control digester. The calculated lag time for methane was found to be in between 3.3 and 4.7 days. The DWTS also reduced the lag phase and retention time. The biogas experimental data was fitted with the modified Gompertz and the first-order kinetic models with R² higher than 0.994 and 0.949, respectively. The ratio of the experimental biogas production to the theoretical biogas production (ɛ) for control sample was 0.53 while for other samples containing additive were higher than 0.78.

研究了饮用水处理污泥（DWTS）作为混合添加剂对餐厨垃圾产生沼气和甲烷的影响。用5种浓度的DWTS（0、2、6、12和18 ppm）对食物残渣进行中温厌氧消化。已经发现DWTS可以显着提高沼气和甲烷的产率。当添加6 mg / kg DWTS时，观察到最高的沼气（671 Nml / g VS）和甲烷收率（522 Nml / g VS）。与对照蒸煮器相比，这相当于增加了65％和58％。计算出的甲烷滞后时间被发现在3.3天到4.7天之间。DWTS还减少了滞后阶段和保留时间。沼气实验数据与改进的Gompertz拟合，一阶动力学模型与R ²拟合分别高于0.994和0.949。对照样品的实验沼气产量与理论沼气产量之比（ɛ）为0.53，而其他含添加剂的样品则高于0.78。