CLR在生活垃圾焚烧发电厂渗滤液处理中的应用  

Application of CLR System to Leachate Treatment in MSW Incineration Power Plant

作　　者：陈燕[1] 任洪艳[1] 阮文权[1] 

机构地区：[1]江南大学环境与土木工程学院,江苏无锡214122

出　　处：《中国给水排水》2015年第13期10-14,共5页China Water & Wastewater

基　　金：国家科技支撑计划项目(2011BAC11B05)

摘　　要：采用CLR系统处理生活垃圾焚烧厂的渗滤液，在接种处理制药废水的厌氧消化污泥后，经过300d左右的污泥驯化、启动调试及试运行，表现出良好的厌氧消化效果。CLR系统最适宜的操作条件如下：容积负荷为8—10kg／（m^3·d），上升流速为0．3m／h，水力停留时间为4—5d。在此条件下VSS上升到63kg／m^3，VSS／TSS值达到0．80，对COD的去除率在90％以上，产气量为4000m^3／d，厌氧罐内酸碱度保持平衡。当对COD的去除量为10．1kg／（m^3·d）时，产气率达到最大为3．58m^3／（m^3·d）；容积负荷为10．9kg／（m^3·d）时，产气率最大为3．0m^3／（m^3·d）。进水COD的80．6％产生沼气，剩余的19．4％随出水排放及被微生物利用。The CLR system was adopted to treat the leachate from a MSW incineration power plant. Through about 300 days for sludge domestication, start-up, commissioning and trial operation after the inoculation of anaerobic digestion sludge for pharmaceutical wastewater treatment, the CLR system showed good anaerobic digestion effect. The optimum operating conditions of the CLR system were as fol- lows： the volumetric loading rate was 8 to 10 kg/（m^3 · d）, the upflow velocity was 0.3 m/h, and the hydraulic retention time was 4 to 5 d. Under these conditions, the VSS eoneentration increased to 63 kg/ m^3, the VSS/TSS ratio reached to 0.80, the removal rate of COD exceeded 90%, the gas production was 4 000 m^3/d, and the pH of the anaerobic tank was kept in balance. When the removal amount of COD reached 10.1 kg/（m^3· d） , the maximum gas production rate was 3.58 m3/（m3 · d）. When the volumettle loading rate was 10.9 kg/（m^3 · d）, the maximum gas production rate was 3.0 m3/（m^3 · d）. 80.6% of COD in the influent was degraded to produce methane, and the remaining 19.4% of COD was discharged along with the effluent and utilized by microorganisms.

关 键 词：渗滤液 CLR系统 厌氧 产气率 

分 类 号：X799.3[环境科学与工程—环境工程]