强化脱氮土壤渗滤系统的初步研究  

Characteristics of Soil Infiltration System for Enhanced Nitrogen Removal

作　　者：董文杰[1] 黄礼共 严立[3,4] 徐高田[5] 张凯琼[3] 张业健[3] 

机构地区：[1]上海大学环境与化学工程学院,上海200444 [2]温州市城建设计院,浙江温州325000 [3]温州大学生命与环境科学学院,浙江温州325000 [4]温州市公用事业投资集团有限公司,浙江温州325000 [5]上海市环境保护局,上海200003

出　　处：《中国给水排水》2013年第1期71-75,共5页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07317-006-01-01);温州市科技计划项目(S20100035);温州市建设局节能减排专项;温州大学实验室开放项目(10004050031091)

摘　　要：为提高土壤渗滤系统的脱氮性能,引入包埋硝化菌流化床,在回流比为100%、土壤装置水力负荷为16 cm/d的条件下,研究了该组合系统对模拟生活污水的处理特性。结果表明,组合系统对TN、NH4+-N和COD的平均去除率分别达到59.08%、93.81%、82.13%,相应出水平均浓度分别为12.32、1.82、54.58 mg/L。组合装置有效提高了单级土壤渗滤系统对TN、NH4+-N和COD的去除效果。同时,该系统建设和运行成本低、维护简单,在流域面源污染治理方面具有良好的应用前景。In order to improve the nitrogen removal efficiency in the soil infiltration system, em bedded nitrobacteria was added to the fluidized bed reactor. The treatment characteristics of the simulated domestic sewage by the combined system were investigated under return ratio of 100% and hydraulic loading of 16 em/d. The average removal rates of TN, NH4 - N and COD in the combined system were 59.08 %, 93.81% and 82.13 % respectively, and the corresponding average effluent concentrations were 12.32, 1.82 and 54.58 mg/L respectively. The use of the fluidized bed reactor with embedded nitrobac- teria could improve the removal efficiency of TN, NH4 -N and COD in the soil infiltration system. The combined system has low construction and operation costs and easy maintenance. It is suitable for non- point source pollution control in the river catchment.

关 键 词：土壤渗滤系统 包埋硝化菌流化床 脱氮 

分 类 号：X703[环境科学与工程—环境工程]