生活垃圾转运站渗滤液全量化处理工艺参数研究  

Study on the Fully Quantitative Treatment Process Parameters of Leachate from Domestic Waste Transfer Station

作　　者：李耕宇 邓方平 张艳丽 Li Gengyu;Deng Fangping;Zhang Yanli(Changsha Zoomlion Environmental Industry Co.,Ltd.,Changsha 410000;Changsha Environmental Resources Exchange,Changsha 410000,China)

机构地区：[1]长沙中联重科环境产业有限公司,湖南长沙410000 [2]长沙环境资源交易所,湖南长沙410000

出　　处：《广东化工》2023年第13期164-167,144,共5页Guangdong Chemical Industry

摘　　要：城市生活垃圾转运站渗滤液与填埋场等渗滤液性质差异较大,多数单位进行工艺设计时没有针对水质情况优化参数取值。通过转运站渗滤液全量化处理的中试试验表明,新鲜污水暂存时间不宜超过2天,混凝去除率可不低于50%,污泥负荷以0.24 kgCOD/kgMLSS·d为宜,污泥产率系数宜取0.23~0.4 kgVSS/kgCOD,臭氧对COD降解速度宜为0.08 kgCOD/h,工艺经济性较好,且不产生难处理二次污染物,工艺出水水质可满足《污水综合排放标准》表4三级标准并排入城镇下水道。There are significant differences in the properties of leachate from urban domestic waste transfer stations and landfills,and most units do not optimize parameter values for water quality during process design.The pilot test of fully quantified treatment of leachate at the transfer station shows that the temporary storage time of fresh sewage should not exceed 2 days,the coagulation removal rate can not be less than 50%,the sludge load should be 0.24 kgCOD/kgMLSS·d,the sludge yield coefficient should be 0.23~0.4 kgVSS/kgCOD,and the ozone degradation rate of COD should be 0.08 kgCOD/h.The process has good economic efficiency and does not produce difficult to treat secondary pollutants,The quality of the process effluent can meet the third level standard of the<Comprehensive Wastewater Discharge Standard>and be discharged into urban sewage.

关 键 词：转运站 垃圾渗滤液 全量化处理 臭氧催化 有机负荷 产率系数 

分 类 号：TQ[化学工程]