垂直潜流湿地对生活污水的净化效能研究Study on Purification Efficiency of Vertical Flow Wetlands on Domestic Wastewater
仝昭昭;王延华;顾中铸;
摘要(Abstract)：
采取间歇式进水和垂直潜流湿地结合的方法处理实际生活污水,构建了4个人工湿地,即菖蒲湿地、芦苇湿地、混栽湿地(菖蒲和芦苇)及空白对照湿地,针对不同水力停留时间(HRT)及植物种属进行研究。结果表明:总氮(TN)和氨氮(NH4+-N)的去除,种植植物的湿地以HRT为7 d处理效果最好,TN和NH4+-N去除率最高分别达到99.60%和99.58%。空白湿地中,TN去除率以HRT为6 d和NH4+-N去除率以HRT为5 d为最好,最高分别达到87.90%、91.80%。对总磷(TP)的去除,4个湿地均以HRT为6 d为最佳,去除率均高于93.00%。通过对不同植物的研究,发现植物床对氮的去除效果优于空白湿地,芦苇湿地和混栽湿地的处理效果均优于菖蒲湿地。
关键词(KeyWords)： 垂直流湿地;生活污水;脱氮除磷;水力停留时间
基金项目(Foundation): 国家自然科学基金项目(50908116);; 南京师范大学211基金项目(2009112XGQ0054);; 江苏省高校优势学科建设工程资助项目;; 江苏省教育厅重大项目(2009105TSJ0165)
作者(Author): 仝昭昭;王延华;顾中铸;
Email:
DOI: 10.13989/j.cnki.0517-6611.2011.13.068
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