【摘要】 为乡村河道污染水体的生态修复提供参考,采用静态模拟试验研究美人蕉(Canna indica)、再力花(Thalia dealbata)、菖蒲(Acorus calamus)、水芹(Oenanthe javanica)、水葫芦(Eichhornia crassipes)、芦苇(Phragmites australis)、慈姑(Sagittaria trifolia)、千屈菜(Lythrum salicaria)和风车草(Cyperus involucratus)等植物对乡村河道污水的净化效果。结果表明:9种植物对河道污染水体的总磷(TP)、化学需氧量(COD)及氨氮(NH4+-N)等有较好的去除效果,其中,水葫芦、菖蒲和风车草对COD去除率较高,分别为32.3%、31.5%和31.2%;美人蕉、风车草和水葫芦对TP去除率较高,分别为85.2%、84.7%和84.4%;芦苇、水葫芦及慈姑对NH4+-N去除率较高,分别为50.6%、43.3%及42.2%。9种植物对污水中各种污染物的去除率有一定差异,水葫芦对各种污染物的平均去除效率最高。更多还原

【Abstract】 In order to provide references for the ecological restoration of polluted water bodies in rural rivers,a static simulation experiment was carried out to study the effects of Canna indica,Thalia dealbata,Acorus calamus,Oenanthe javanica,Eichhornia crassipes,Phragmites australis,Sagittaria trifolia,Lythrum salicaria and Cyperus involucratus on the purification of river sewage in rural areas.Results:Nine plant species had good removal effects on total phosphorus(TP),chemical oxygen demand(COD)and ammonia nitrogen(NH4+-N)in polluted river water.Among them,E.crassipes,A.calamus and C.involucratus had higher removal rates of COD,respectively 32.3%,31.5% and 31.2%;TP removal effect of C.indica,C.involucratus and E.crassipes was higher,respectively 85.2%,84.7%and 84.4%;NH4+-N removal effect of P.australis,E.crassipes and S.trifolia was higher,respectively 50.6%,43.3%and 42.2%.The average removal efficiency of E.crassipes was the highest to various pollutants.更多还原