机械淋滤-厌氧生物组合工艺处理有机生活垃圾中试研究  

Pilot-scaled combination technology of mechanical leaching and anaerobic biology for treatment of organic household waste

作　　者：彭明国[1] 朱卫兵 杜尔登[1] 史东晓 张进锋 李月中 

机构地区：[1]常州大学环境与安全工程学院,常州213164 [2]江苏维尔利环保科技股份有限公司,常州213125 [3]常州市生活废弃物处理中心,常州213171

出　　处：《环境工程学报》2015年第3期1451-1455,共5页Chinese Journal of Environmental Engineering

基　　金：常州市科技支撑计划项目(CE20125023)

摘　　要：采用机械淋滤/厌氧生物组合工艺,充分发挥机械淋滤反应器的水解酸化功能和厌氧生物反应器的产甲烷功能,对有机生活垃圾进行了中试规模处理。厌氧生物反应器经过接种,15 d驯化完成。厌氧反应器出水回流淋洗水量对机械淋滤反应器运行特征有较大影响,当回流淋洗水量为3.0 m3/d时,淋滤液COD、VFA第8天时浓度分别为41 000 kg/L和2 000 kg/L。对机械淋滤反应器/厌氧反应器组合工艺进行了多批次实验,每吨有机生活垃圾平均产生沼气87.2 m3,甲烷含量稳定在75%,平均产沼系数为0.46 m3/kg COD,厌氧生物反应器出水COD平均值为560 mg/L,在对有机生活垃圾处理的同时实现有机生活垃圾资源化利用。A pilot-scaled process combined with mechanical leaching and anaerobic biology was utilized to treat the organic household waste. The process could give full play to the role of hydrolysis and acidogenesis in mechanical leaching reactor,and the role of methanogenesis in anaerobic bioreactor. The acclimation of anaerobic bioreactor can be completed in 15 days after inoculation. The effluent recycle rinse water significantly influences the performance of mechanical leaching reactor. Under the condition of leaching reflux 3. 0 m3/ d,chemical oxygen demand( COD) and volatile organic acids( VFA) declined to 41 000 mg / L and 2 000 mg / L in 8days,separately. The tests were conducted for several times. Organic household waste can averagely produce biogas of 87. 2 m3 per ton,which contains 75% of methane. The average biogas production rate was 0. 46 m3/ kg COD. COD of anaerobic bioreactor effluent was 560 mg / L on the average. The process could effectively treat organic household waste,simultaneously realize the resource utilization of organic household waste.

关 键 词：机械淋滤 厌氧生物 有机生活垃圾 沼气 

分 类 号：X799.3[环境科学与工程—环境工程]