WUHang-hang,WANGZhong-hui,ZHANGLu-lu,et al.Case Study on Treatment of Landfill Leachate Membrane Concentrate by MVR Evaporation[J].China Water & Wastewater,2023,39(20):127-131.
基于MVR蒸发处理垃圾渗滤液膜浓缩液的实例研究
- Title:
- Case Study on Treatment of Landfill Leachate Membrane Concentrate by MVR Evaporation
- Keywords:
- landfill leachate; MVR evaporation; membrane concentrates; volume reduction; cost reduction
- 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/m3，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。
- Abstract:
- 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 (NH3-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/m3. It brought considerable economic benefits for the landfill site by implementing this system, which would save 7.90 million yuan annually.
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