改良地下渗滤系统处理生活污水的研究  

Modified Subsurface Wastewater Infiltration System for Treatment of Domestic Sewage

作　　者：李海波[1] 李英华[1,2] 孙铁珩[1,2] 胡筱敏[2] 

机构地区：[1]沈阳大学污染环境的生态修复与资源化技术实验室,辽宁沈阳110044 [2]东北大学资源与土木工程学院,辽宁沈阳110004

出　　处：《中国给水排水》2009年第13期45-47,51,共4页China Water & Wastewater

基　　金：沈阳市科技计划项目(1081100-1-00);辽宁省自然科学基金资助项目(20082195)

摘　　要：通过添加自制的生物基质来改进污水地下渗滤系统(SWIS),并考察了改良污水地下渗滤系统(MSWIS)对生活污水的处理效果。结果表明,改良后的土壤具有较高的微生物活性,其理化条件也有明显的改善;与SWIS相比,MSWIS的启动周期缩短了20～30d;当进水COD为300mg/L、水力负荷为4～8cm/d时,MSWIS对COD的去除率比SWIS的提高了6.2%～8.8%;当水力负荷为4cm/d、进水COD为320～650mg/L时,MSWIS对COD的去除率比SWIS的提高了5.3%～8.9%。MSWIS具有较强的抗冲击负荷和抗污染负荷能力。The subsurface wastewater infiltration system （SWIS） was modified by adding selfmade biological substrate. The treatment efficiency of domestic sewage by the modified subsurface wastewater infiltration system （MSWIS） was investigated. The results show that the modified soil has higher bioactivity and its physiochemical conditions are significantly improved. MSWIS shortens the start- ing period by 20 to 30 d compared with SWIS. When the influent COD is 300 mg/L and the hydraulic load is 4 to 8 cm/d, the removal rate of COD by MSWIS is increased by 6.2% to 8.8% compared with SWIS. When the hydraulic load is 4 cm/d and the influent COD is 320 to 650 mg/L, the removal rate of COD by MSWIS is increased by 5.3% to 8.9% compared with SWIS. MSWIS has stronger anti-shock loading capability and anti-pollution loading capability.

关 键 词：地下渗滤系统 生活污水 COD 水力负荷 

分 类 号：X703[环境科学与工程—环境工程]