粤东某垃圾渗滤液处理站全量化处理升级改造实例

An Example of Fully Quantified Treatment and Upgrading of a Landfill Leachate Treatment Station in Eastern Guangdong Province

针对粤东某垃圾填埋场渗滤液长期浓缩液回灌导致的盐分累积严重,电导率高,可生化性降低,渗滤液处理站生化系统停止运行,应急处理系统处理效率下降等问题,对渗滤液处理站进行升级改造,对渗滤液进行全量化处理,解决场内浓缩液回灌导致渗滤液含盐量过高和渗滤液积存的问题。改造后的工艺处理效果好,运行稳定,出水水质达到城市杂用水水质标准要求。

In view of the problems such as reduced biodegradability of leachate,serious salt accumulation,high electrical conductivity,stopped operation of biochemical system of leachate treatment station and reduced efficiency of emergency treatment system in a landfill site in eastern Guangdong,the leachate treatment station was upgraded and reformed,and the leachate was fully treated to solve the problems of high salt content and leachate accumulation caused by the recharging of concentrated liquid in the site.The improved process has good treatment effect and stable operation.The effluent water quality reaches The reuse of urban recycling water—Water quality standard for urban miscellaneous use(GB/T18920-2002),Discharge limit of water pollutants(DB4426-2001)level I standard(second period),and Standard for pollution control on the landfill site of municipal solid waste(GB16889-2008)level I standard(the three take its strict).