地下污水处理厂污泥处理工艺层次分析与决策研究  

Analysis of Sludge Treatment Process Suitable for Underground Sewage Treatment Plant

作　　者：翟国光 周晓 干里里 侯锋 Zhai Guoguang;Zhou Xiao;Gan Lili;Hou Feng(SDIC Xinkai Water Environment Investment Co.,Ltd.,Beijing 101101,China)

机构地区：[1]国投信开水环境投资有限公司,北京101101

出　　处：《环境科学与管理》2022年第11期71-75,125,共6页Environmental Science and Management

基　　金：国家水体污染控制与治理科技重大专项(2017ZX07103-003)。

摘　　要：近年来,全国地下污水处理厂建设逐步增多,体现了环境友好、土地节约和资源利用的优势。为适应地下污水处理厂布局设施紧凑,集约度高,密闭空间限制等特点,污泥处理工艺在选择时,也有了相应要求,结合目前市政污泥处置的最终出路,组配三种不同的污泥脱水工艺,从技术、经济、环境效益3个方面构建11个评价指标的决策模型,进行经济技术比选与层次分析决策,得出适合地下污水处理厂的、污泥目标含水率40%场景下厂内处理路线——“机械浓缩脱水+电渗透+低温干化”工艺供参考。The increase of underground wastewater treatment plants showed the advantages of environmental friendliness,land saving and resource utilization.Due to the compact layout of facilities,high intensity,confined space and other reasons,the selection of sludge treatment process had its own characteristics.According to the final outlet of municipal sludge disposal,three different sludge dewatering processes were proposed for comparison.Through economic and technological comparison and analytical sludge process(AHP)decision-making,the paper suggested a suitable treatment route of sludge dewatering process under the scenario of 40%target moisture content,which is the dewatering process of mechanical thickening and dewatering+electro-osmosis+low temperature heat pump drying.

关 键 词：地下污水处理厂 污泥电渗透脱水 低温干化 层次分析法 

分 类 号：X703[环境科学与工程—环境工程]