新型复合流人工湿地处理食品加工废水的探索  

Primary Research on Integrated Constructed Wetlands Treating Eutrophic Water from Food Processing Industry

作　　者：陈晓东[1] 张帆[1] 张华[1] 许翼[1] 王迪[2] 孙文章[2] 

机构地区：[1]沈阳环境科学研究院,辽宁沈阳110016 [2]沈阳赛思环境工程设计研究中心,辽宁沈阳110016

出　　处：《环境科学与技术》2016年第5期100-104,共5页Environmental Science & Technology

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07202-005-002)

摘　　要：针对农副产品加工园区食品加工行业产生的废水,在沈阳市辉山明渠河口湿地污水处理厂构建中试规模的新型复合流人工湿地,通过对比研究明确该湿地对化学需氧量(COD)、氨氮(NH_3-N)、总氮(TN)和总磷(TP)的处理效果。结果表明,垂直流人工湿地(VSF)和复合流人工湿地(HVC)对COD的平均去除率分别为39.69%、45.56%;对氨氮的平均去除率分别为51.23%、80.96%;对TN的平均去除率分别为35.80%、57.30%;对TP的平均去除率分别为48.80%、80.24%。新型复合流人工湿地通过灵活的布水方式,营造出适宜微生物生存的溶解氧和温度环境,对有机物和氮磷的分解和吸收过程都比较完整。但是,复合流人工湿地需要控制进水的污染物浓度,超高浓度的污水将使湿地植物的生长和微生物环境遭到破坏。Pilot scale constructed wetlands were built in the estuarine wetland of Huishan Channel in Shenyang City for the treatment of food processing water. The purification of chemical oxygen demand（COD）, ammonia nitrogen（NH_3-N）, total nitrogen（TN） and total phosphorus（TP） was studied, and results indicated that the removal efficiency of COD, NH3-N, TN and TP attained 39.69%, 51.23%, 35.80%, 48.80% and 45.56%, 80.96%, 57.30%, 80.24% respectively as to VSF and HVC for treated eutrophic water. Integrated constructed wetland has appropriate dissolved oxygen and temperature environment for microbial survival, and the decomposition and absorption processes of organic matter, nitrogen and phosphorus are complete.However, it is needed to control the pollutant＇s concentration of inflow in the integrated constructed wetland since the wastewater with high concentration pollutants would has negative effects on wetland plants growth and microbial environment.

关 键 词：复合流人工湿地 垂直流人工湿地 食品加工废水 富营养化 

分 类 号：X703.1[环境科学与工程—环境工程]