MBR组合工艺处理餐厨垃圾发酵废液的运行特性  

Operation Characteristics of Kitchen Waste Fermentation Wastewater Treatment by MBR Combination Process

作　　者：郑炜 杨兴兴 万梅 邹利华 汤洁 

机构地区：[1]浙江清华长三角研究院生态环境研究所,浙江嘉兴314006

出　　处：《水处理技术》2018年第3期118-120,128,共4页Technology of Water Treatment

基　　金：浙江省公益技术研究社会发展项目(2015C33034)

摘　　要：采用混凝、USAB、接触氧化、生物沸石-膜生物反应器(ZB-MBR)和芬顿氧化(Fenton)构建的组合工艺处理餐厨垃圾发酵废液,评价组合工艺对餐厨垃圾发酵废液的处理效果。结果表明,组合工艺能有效去除餐厨垃圾发酵废液中的COD和NH_3-N等物质,各物质在出水中的平均含量分别为377 mg/L和9.7 mg/L。经组合工艺处理后,系统沿程出水荧光峰数增加、荧光总强度降低,废水中的溶解性微生物副产物被逐级去除。三维荧光光谱分析显示,II区芳香族蛋白质类似物是餐厨垃圾发酵废液中较难去除的物质之一。在处理系统中添加生物沸石床工艺有利于系统对NH_3-N的去除。MBR组合工艺适用于餐厨垃圾发酵废液的处理。Kitchen waste fermentation wastewater was treated by a combination process of coagulation,USAB,contact oxidation,bio-zeolite membrane bioreactor（ZB-MBR）and Fenton oxidation,and the treatment efficiency was evaluated.The results showed that,chemical oxygen demand（COD）and ammonia nitrogen（NH3-N）of kitchen waste fermentation wastewater could be removed obviously by the combination process.The average concentrations of COD and NH3-N in effluent were reduced to 377 mg/L and 9.7 mg/L,respectively.After the combined treatment,the fluorescence peak number increased and the total fluorescence intensity decreased.Dissolved microbial by-products in wastewater were degraded progressively.The three-dimensional fluorescence spectrum showed that,the aromatic protein analogues in II district was one of the most difficult substances to be removed for kitchen waste fermentation wastewater.Addition of bio-zeolite bed process in treatment system was beneficial to NH3-N removal in the system.MBR combination process was applicable for kitchen waste fermentation wastewater treatment.

关 键 词：餐厨垃圾发酵废液 MBR组合工艺 运行特性 

分 类 号：X703[环境科学与工程—环境工程]