凤眼莲融合活性污泥对生活污水的净化效能研究  

Study on Purification Effect of Eichhornia crassipes and Activated Sludge on Domestic Sewage

作　　者：杨顺清 韩雪 周健珍 杜明霞 张显球 戴科伟[1] Yang Shunqing;Han Xue;Zhou Jianzhen;Du Mingxia;Zhang Xianqiu;Dai Kewei(School of Environment,Nanjing Normal University,Nanjing 210023,China;Jiangsu Key Laboratory of Material Circulation and Pollution Control,Nanjing Normal University,Nanjing 210023,China)

机构地区：[1]南京师范大学环境学院,江苏南京210023 [2]南京师范大学江苏省物质循环与污染控制重点实验室,江苏南京210023

出　　处：《南京师范大学学报（工程技术版）》2019年第2期82-86,共5页Journal of Nanjing Normal University(Engineering and Technology Edition)

基　　金：污染控制与资源化研究国家重点实验室开放课题(PCRRF16012);水体污染控制与治理科技重大专项课题(2017ZX07203003)

摘　　要：以水生植物为核心的生态修复技术日益向污水处理领域拓展,但因其占地面积大导致应用受到一定的限制.为提高水生植物系统的净化效能,设计了一种凤眼莲融合活性污泥好氧净化系统,实验研究了该系统对低碳氮比生活污水的净化效能并分析了其净化机理.结果表明,单独凤眼莲对污水中的氮磷去除效能较微生物低,但构建凤眼莲融合活性污泥好氧净化系统可同时发挥植物吸收和生物降解的作用,显著提高N、P、COD等污染物的去除效果,为污水植物净化系统的工程应用提供有益的依据.The ecological restoration technology based on aquatic plants is increasingly expanding into the field of sewage treatment,but the application is limited due to its occupied large area. To improve the efficiency of the aquatic plant purification system,a purification system of Eichhornia crassipes combined with activated sludge is designed. The purification efficiency of domestic wastewater with low carbon and nitrogen ratio is studied and its purification mechanism is analyzed . The results show that the removal efficiency of nitrogen and phosphorus in the single system of Eichhornia crassipes is lower than those of microorganisms. However,the aerobic purification system of Eichhornia crassipes combined with activated sludge can exert plant uptake and biodegradation at the same time,which can significantly improve the removal efficiency of N,P,COD and other pollutants. It provides a useful basis for the engineering application of sewage plant purification system.

关 键 词：凤眼莲 活性污泥 污水 氮 磷 

分 类 号：X703.1[环境科学与工程—环境工程]