冬季室温铁碳内电解质下4种水生植物及其组合的净化效果  

Water Purification of Four Aquatic Plant Species with the Presence of Iron and Carbon Interior Electrolytic Substrates in Winter at Room Temperature

作　　者：孙广芳[1] 宗小香 吕丽萍 闵梦月 安树青[1,2] 冷欣 

机构地区：[1]南京大学生命科学学院,江苏南京210023 [2]南京大学常熟生态研究院,江苏常熟215500

出　　处：《湿地科学与管理》2017年第3期40-44,F0003,共6页Wetland Science & Management

基　　金：基金项目:淮河下游重污染河道水质改善生态净化与水生态修复技术及示范(2014ZX07204-005);清潩河(许昌段)环境流量调控与生态水系构建技术集成与示范(SX07204-002-04-4)

摘　　要：为探究冬季室温不同铁碳内电解基质下4种水生植物及其组合对人工湿地污水的净化效果,通过构建小试试验装置来探究冬季室温铁碳内电解质下菖蒲、鸢尾、金鱼藻、狐尾藻4种水生植物及菖蒲+鸢尾、金鱼藻+狐尾藻、菖蒲+鸢尾+金鱼藻+狐尾藻3种组合在不同试验时间内对污水中COD、NH_3+-N、TN、TP 4种污染物的净化效果。结果表明:冬季室温不同铁碳内电解基质下,4种植物及其组合对COD、TN、TP去除效果均较好,无显著性差异。NH3+-N净化效果较好的是菖蒲组和金鱼藻+狐尾藻组合。研究发现,铁碳内电解基质在COD、TN、TP的去除过程中发挥了主要作用。在TN去除方面,铁碳内电解质与植物的组合效果比单纯内电解质对污水的净化效果好。4种植物及其组合在NH_3+-N去除方面均发挥了重要作用,且不同处理间存在显著差异。To investigate the pollutant removal efficiencies of Fe-C interior electrolytic substrates with four aquatic plant species in separation and in combination in constructed wetland in winter at room temperature. The pollutant removal efficiency of COD, TN, TP under Fe-C interior electrolytic substrates（mass ratio 1：1） with four aquatic plant species（Acorus calamus, Iris sibirica, Ceratophyllum demersem, Myriophyllum spicatum） and their combination. The results showed that the removal effects of COD, TN, TP with four different plant species and their combination were effective. The better purification effect of NH3^＋-N was found with A. calamus group and C. demersem ＋ M. spicatum combination group. The pollutant removal efficiency of TP was higher with A. calamus group and C. demersem ＋ M. spicatum combination group. The study indicated that the Fe-C interior electrolytic substrates play a major role in the removal of COD, TN and TP. In the removal of TN, the combination of Fe-C interior electrolytic substrates and plants was better than Fe-C interior electrolytic substrates only. Plants and their combinations played an important role in the removal of NH3^＋-N, and there were significant differences among different treatments.

关 键 词：铁碳内电解质 人工湿地 植物 COD 氨氮 

分 类 号：X703[环境科学与工程—环境工程]