不同人工湿地基质除磷效率研究

不同人工湿地基质除磷效率研究

刘洋

【期刊名称】《安徽农业科学》 【年(卷),期】2012(040)009

【摘要】[ Objective ] The study aimed to discuss the removal rate of phosphorus by different constructed wetland substrates. [ Method ] Based on a static experiment, we analyzed the removal rate and characteristics of phosphorus by different constructed wetland substrates like steel slag, cinder slag, shale, boiler slag, soil and gravel. [ Result ] The maximum adsorption of phosphorus by various substrates showed as follows: steel slag > cinder slag > shale > boiler slag > soil > gravel. When the initial concentration of phosphorus was 5 mg/L, the removal rate of the six substrate was 99.76%, 85.8%, 71.2%, 63.0%, 46.8% and 11.7% respectively. Shale and boiler slag can be used as a substrate under constructed wetland. Cinder slag could be chosen as a renewable substrate for intensifying phosphorus removal. Steel slag could be used at the end of constructed wetlands to treat TP in outflows. [Conclusion] The research could provide theoretical references for choosing a suitable substrate for constructed wetlands to remove phosphorus in future.%[目的]探讨不同人工湿地基质对磷的去除效率.[方法]通过静态试验,选取钢渣、煤渣、炉渣、页岩、土壤、砂石6种基质,研究不同人工湿地基质对磷的去除效率及除磷特性.[结果]6种基质对磷的去除能力表现为钢渣＞煤渣＞炉