潜流-垂直流改进型人工湿地处理河道水的研究  

STUDY ON TREATMENT OF RIVER WATER BY IMPROVED SUBSURFACE FLOW-VERTICAL FLOW WETLAND

作　　者：向衡[1,2] 韩芸[3] 潘瑞玲 袁腾[1,3] 刘琳[1] 刘超翔[1] 

机构地区：[1]中国科学院城市环境研究所,福建厦门361021 [2]中石化绿源地热能开发有限公司,陕西咸阳712000 [3]西安建筑科技大学环境与市政工程学院西北水资源与环境生态教育部重点实验室,西安710055 [4]浩蓝环保股份有限公司,西安710055

出　　处：《环境工程》2015年第3期60-64,共5页Environmental Engineering

基　　金：国家"水体污染控制与治理"科技重大专项(2012ZX07302-002);福建省科技重大专项专题二(2013YZ0001-1);莆田市科技计划项目(2012S15)

摘　　要：针对微污染河道水C/N比不足和磷浓度低的问题,将传统人工湿地改进后用于处理。改进后的人工湿地包含潜流段和垂直流段,潜流段填充沸石和腐木,其中腐木作为补充碳源,垂直流段填充水泥砖块,并种植美人蕉。试验结果表明:改进型人工湿地脱氮除磷效果良好,氮的去除主要发生在潜流段,氨氮和总氮的去除率达到90%以上,填充的补充碳源不会恶化水质;磷的去除主要发生在垂直流段,水泥砖块具有良好的去除低浓度磷的性能,但其寿命不长,需要及时的更换;美人蕉对湿地脱氮影响非常小。The improved artificial wetland was selected to treat river water,for its C / N deficiency and low P concentration.The improved wetland contains subsurface flow and vertical flow segments. The subsurface flow segment is filled with zeolites and rotten wood,which play the role of external carbon source. The vertical flow segment is filled with cement bricks,and planted with canna on it. The result showed that the improved wetland had high efficiency on nitrogen and phosphorus removal. Nitrogen was mainly removed during the subsurface flow segment,the removal rate of ammonia and total nitrogen could exceed 90%,and the external carbon source did not affect the quality of water. While phosphorus was removed mainly in vertical flow segment. Cements bricks had better performance on the low concentration P removal,but they need to be changed frequently,with a short lifetime. Canna had little effect on nitrogen removal of wetland.

关 键 词：人工湿地 碳源 水泥砖 

分 类 号：X52[环境科学与工程—环境工程]