基于MVR蒸发处理垃圾渗滤液膜浓缩液的实例研究  

Case Study on Treatment of Landfill Leachate Membrane Concentrate by MVR Evaporation

作　　者：吴杭航 王中慧 张路路 叶脉 WU Hang-hang;WANG Zhong-hui;ZHANG Lu-lu;YE Mai(Guangdong Provincial Academy of Environmental Science,Guangzhou 510045,China;Guangdong-Hong Kong-Macao Joint Laboratory of Collaborative Innovation for Environmental Quality,Guangzhou 511486,China)

机构地区：[1]广东省环境科学研究院,广东广州510045 [2]粤港澳环境质量协同创新联合实验室,广东广州511486

出　　处：《中国给水排水》2023年第20期127-131,共5页China Water & Wastewater

基　　金：广东省环保专项资金项目(粤财资环[2023]12号);中国工程院战略研究与咨询项目(2022-GD-6)。

摘　　要：以广东省某垃圾填埋场渗滤液膜浓缩液处理项目为例,介绍了基于机械蒸汽压缩(MVR)蒸发的垃圾渗滤液膜浓缩液处理系统设计参数、运行效果和运行成本。该系统的应用使垃圾填埋场渗滤液膜浓缩液的减量化率达到85%以上,对COD和NH3-N的平均去除率分别达到99.86%和99.95%,出水指标均满足《生活垃圾填埋场污染控制标准》(GB 16889—2008)的表3水污染物特别排放限值要求。MVR蒸发系统运行成本为86.87元/m^(3),项目实施后可为垃圾填埋场节省运营开支790万元/a,经济效益可观。Taking the treatment project of landfill leachate membrane concentrate in Guangdong Province as a case,the design parameters,operating effects and operation cost based on a mechanical vapor recompression(MVR)evaporation system are introduced.The application results show that the landfill leachate membrane concentrate is reduced by over 85%in weight.The average removal rates of chemical oxygen demand(COD)and ammonia-nitrogen(NH_3-N)are 99.86%and 99.95%,respectively.The effluent indexes of the landfill site meet the special discharge limits of water pollutants in table 3 of Standard for Pollution Control on the Landfill Site of Municipal Solid Waste(GB 16889-2008).The operation cost for the MVR evaporating system is 86.87 yuan/m~3.It brought considerable economic benefits for the landfill site by implementing this system,which would save 7.90 million yuan annually.

关 键 词：垃圾渗滤液 MVR蒸发 膜浓缩液 减量化 降低成本 

分 类 号：TU992[建筑科学—市政工程]