O_3/木屑强化SBR法处理垃圾渗滤液的研究

STUDY ON TREATMENT OF LANDFILL LEACHATE BY O_3/SAWDUST ENHANCED SBR PROCESS

木屑作为强化剂加入SBR反应器中,采用O3+SBR强化生化处理法组合工艺对垃圾渗滤液进行处理,结果表明:臭氧前处理垃圾渗滤液时,60 min内,空气流量为400 mL/min,臭氧浓度为10.4 mg/L时,垃圾渗滤液COD降低42%。加入木屑作为SBR强化剂,可在进水垃圾渗滤液COD为4 200 mg/L,有机负荷达到1.7 kg/(kg.d)时,COD的去除率稳定在80%,二级强化法串联使用,出水水质达到国家污水综合排放一级排放标准。

Sawdust was added in the SBR reactor as an enhanced means. 03 and the enhanced SBR reactor process was used to treat the landfill leachate. The results showed that the COD of landfill leachate was decreased by 42% under air flow 400 mL/min and 03 concentration 10.4 mg/L within 60 min. The landfill leachate was further treated by the sawdust enhanced reactor. The COD removal rate of the wastewater was 80% in the 1.7 kg/（kg·d） organic load when leachate COD was 4 200 mg/L. After treating it by double SBR, the effluent quality could meet the first-order of ＂Pollution Control Standard of Domestic Landfill＂（GB 16889 - 1997）.