摘要
目前国内餐厨垃圾运营处理已成为一种趋势,处理工艺以湿式厌氧消化居多,由于餐厨垃圾预处理产生的有机浆液污染物浓度极高,直接导致厌氧消化后的沼液出水指标COD、SS等居高不下,后端污水处理设施膜污堵严重。为了保障后续污水处理系统的效果,需要对该厌氧沼液出水进行预处理,满足污水系统进水要求。本试验以太原市餐厨垃圾处理项目厌氧沼液为研究对象,对餐厨沼液的特性进行化验分析,并在此基础上展开相关的小试及中试试验,来验证不同化学药剂与对应的处理工艺达到的沼液处理的效果。为已建成或待建的餐厨垃圾处理厂沼液达标处理工艺的选择或优化提供技术参考。
At present, the operation and treatment of domestic food waste have become a trend. The treatment process is mostly wet anaerobic digestion. Due to the high concentration of organic slurry pollutants produced by the pretreatment of food waste, the effluent indexes of biogas slurry after anaerobic digestion such as cod and SS remain high, and the membrane fouling of the back-end sewage treatment facilities is serious. In order to ensure the effect of the follow-up sewage treatment system, the effluent of the anaerobic biogas slurry needs to be pretreated to meet the inlet requirements of the sewage system. This experiment takes the anaerobic biogas slurry of Taiyuan kitchen waste treatment project as the research object, analyzes the characteristics of kitchen biogas slurry, and carries out relevant small-scale and pilot tests on this basis to verify the biogas slurry treatment effects achieved by different chemicals and corresponding treatment processes. It can provide technical reference for the selection or optimization of biogas slurry treatment process of food waste treatment plants that have been built or to be built.
出处
《环境保护前沿》
2022年第3期554-569,共16页
Advances in Environmental Protection
