青岛小涧西垃圾渗滤液浓缩液全量化处理工程实践  

Full Quantitation Disposal Practice of Landfill Leachate Concentrate in Xiaojianxi,Qingdao

作　　者：夏正启 占美丽 刘赞贤 张凯 闫清云 苗平平 葛文龙 吕宝鹏 卞荣星[6] XIA Zheng-qi;ZHAN Mei-li;LIU Zan-xian;ZHANG Kai;YAN Qing-yun;MIAO Ping-ping;GE Wen-long;LÜBao-peng;BIAN Rong-xing(Qingdao Water Group,Qingdao 266000,China;Qingdao Solid Waste Disposal Co.Ltd.,Qingdao 266000,China;Qingdao Jieyuan Environment Co.Ltd.,Qingdao 266300,China;Qingdao Xiaojianxi Leachate Treatment Co.Ltd.,Qingdao 266300,China;Zhongqi Guoyun Environmental Protection Technology Co.Ltd.,Beijing 100071,China;College of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266520,China)

机构地区：[1]青岛水务集团,山东青岛266000 [2]青岛市固体废弃物处置有限责任公司,山东青岛266000 [3]青岛洁源环境有限公司,山东青岛266300 [4]青岛小涧西渗沥液处理有限公司,山东青岛266300 [5]中企国云环保科技有限公司,北京100071 [6]青岛理工大学环境与市政工程学院,山东青岛266520

出　　处：《中国给水排水》2024年第10期126-131,共6页China Water & Wastewater

基　　金：国家自然科学基金资助项目(52000112);中国博士后科学基金资助项目(2022M711747)。

摘　　要：浓缩液是垃圾渗滤液处理过程产生的残余液,是实现垃圾渗滤液全量化处置的关键。针对青岛小涧西浓缩液处理工程在运行过程中存在的预处理不稳定、设备结垢,蒸发浓液产生量大、干化系统起沫无法结晶等问题,采用深度絮凝+化学软化预处理工艺可保证后端MVR蒸发及干化系统稳定运行,浓缩液处理能力明显提升,产浓率下降,连续稳定运行周期增加,干化系统恢复结晶减量能力。可见,采用“深度絮凝+化学软化+碳化硅膜+MVR蒸发+干化减量+焚烧协同”的工艺路线可实现渗滤液全量化处置。The concentrate is the residual liquid generated from landfill leachate treatment process,which is the key to the full quantitation disposal of landfill leachate.Aiming at the problems of unstable pretreatment,equipment scaling,large amount of evaporation concentrate,and noncrystallization of drying system in Qingdao Xiaojianxi concentrate treatment project during operation,the deep flocculation and chemical softening pretreatment process is used to ensure the stable operation of the follow-up MVR evaporation and drying system.Thus the leachate concentrate treatment capacity is significantly improved,the concentration yield is reduced,the continuous stable operation cycle is increased,and the crystallization reduction ability of the drying system is restored.It shows that the full quantitation disposal of leachate concentrate can be achieved by adopting the process of deep flocculation,chemical softening,silicon carbide film,MVR evaporation,drying reduction,and coordinated incineration.

关 键 词：垃圾渗滤液浓缩液 深度絮凝 蒸发结晶 全量化处置 

分 类 号：TU992[建筑科学—市政工程]