The Effect of Baffled Surface Flow Wetlands on Water Purification

作     者：郭萧 张颖 赵安娜 潘继征 李文朝 GUO Xiao;ZHANG Ying;ZHAO An-na;PAN Ji-zheng;LI Wen-chao

作者机构：中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室江苏南京210008 中国科学院研究生院北京100049 河海大学环境科学与工程学院江苏南京210008 

出 版 物：《Agricultural Science & Technology》 (农业科学与技术（英文版）)

年 卷 期：2010年第11卷第6期

页      面：164-168页

学科分类：08[工学] 0815[工学-水利工程] 

基　　金：Supported by Deep Purification Technology Project of Mixed Mode Wetland for Sewage Plant Waster Water in Dryland(2006AA6Z325)~~ 

主　　题：Baffled surface flow wetlands Wetland plants Purification effect 

摘      要：[Objective] The effect of baffled surface flow wetlands on water purification was studied in order to provide a reference for the ecological restoration of polluted river.[Method] Contents of some indexes like DO,TN,TP,NH＋4-N,CODCr,SS,SD,*** determined in the band baffled surface flow wetlands with total area of 7 400 m2 at JiaLu riverside.[Result] Baffled surface flow wetlands could improve the effluent quality significantly,could enhance transparency and dissolved oxygen content and also could decrease SS *** removal rate of TN was kept at more than 73% in summer and decreased to 23% in early winter;The removal rate of TP was little influenced by temperature,and it was kept at more than 77% in summer and still kept at more than 69% in autumn and winter;The removal rate of NH＋4-N was kept at more than 83% in summer and decreased slightly in autumn and winter,but still kept at more than 75%;The removal rate of CODCr ranged from 14% to 50%.[Conclusion] Baffled surface flow wetlands could effectively improve the purification effect of surface flow wetlands,which is a feasible way for ecological restoration.