凤眼莲对不同富营养化程度水体的净化效果研究  

Study on the purification effects of Eichhornia crassipes on different eutrophication levels of water

作　　者：罗雪梅[1] 黄帅 樊华[1] 李森[1] 涂卫国[1] 邹长武[2] LUO Xue-mei;HUANG Shuai;FAN Hua;LI Sen;TU Wei-guo;ZOU Chang-wu(Sichuan Provincial Academy of Natural Resource Sciences,Chengdu 610015,China;Chengdu University of Information Technology,Chengdu 610225,China)

机构地区：[1]四川省自然资源科学研究院,成都610015 [2]成都信息工程大学,成都610225

出　　处：《湖北农业科学》2019年第14期51-54,共4页Hubei Agricultural Sciences

基　　金：四川省基本科研业务费项目(2016YSKY0016);四川省科技厅重点研发项目(2017SZ0176;2018SZ0324)

摘　　要：为研究凤眼莲(Eichhornia crassipes)对不同富营养化程度水体的净化修复效果,按照地表水环境质量标准Ⅲ类水至劣Ⅴ类水配制5种不同浓度梯度的废水进行水培试验,考察凤眼莲对不同初始浓度废水中CODcr、TN和TP的净化效果。当废水CODcr、TN、TP初始浓度分别为25.720~136.040、1.263~32.011、0.942~4.111 mg/L时,凤眼莲对CODcr、TN和TP的净化处理效果良好,去除率随初始浓度升高而呈增加趋势,最高可分别达到80%、97%和98%,表明凤眼莲对不同浓度的富营养化水体都具有较好的修复效果,尤其适于净化修复劣Ⅴ类水质水体。In order to study the purification and restoration effects of water hyacinth(Eichhornia crassipes) on different eutrophication levels of water,water culture tests were conducted under five different concentration gradients from Grade III to worse than Grade V according to the China Surface Water Environmental Quality Standards to investigate the purification effect of Eichhornia crassipes on CODcr,TN and TP in wastewater with different initial concentration.When the initial concentration of wastewater were CODcr25.720~136.040 mg/L,TN 1.263~32.011 mg/L and TP 0.942~4.111 mg/L,respectively,the purification effects of Eichhornia crassipes on CODcr,TN and TP were well,the removal rate tends increased with increasing of initial concentration,the maximum removal rates could reach 80%,97% and 98%,respectively.The results showed that the Eichhornia crassipes had satisfactory repair effect to different eutrophic water,especially suitable for purifying and repairing water worse than Grade V.

关 键 词：凤眼莲(Eichhornia crassipes) 富营养化水体 净化效果 

分 类 号：X52[环境科学与工程—环境工程]