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组合型浮床生态系统的构建及其改善湖泊水源地水质的效果
引用本文:李先宁,宋海亮,朱光灿,李大成,吕锡武.组合型浮床生态系统的构建及其改善湖泊水源地水质的效果[J].湖泊科学,2007,19(4):367-372.
作者姓名:李先宁  宋海亮  朱光灿  李大成  吕锡武
作者单位:东南大学环境科学与工程系,南京,210096
基金项目:国家科技专项基金 , 教育部留学回国人员科研启动基金
摘    要:研究开发了一种由水生植物、水生动物及微生物膜构建的组合型浮床生态系统.在野外条件下,考察了该浮床对富营养化湖泊水在静态条件下的净化效果.结果表明,20 d内TN、TP的去除率分别为83.7%和90.7%,透明度也有大幅提高.而且,组合型浮床系统对有机物尤其是难降解有机物的去除能力较强,在25 d内,对r-BHC、HE、DDE、DDD、DDT的去除率分别为25.2%、63.8%、42.1%、71.6%和27.6%,氯苯、阿特拉津的去除率达55.9%和72.1%.水生动物的代谢活动提高了有机物的生物可降解性和氮磷的植物可利用性.该新型浮床可用于水源地水质改善、污水净化生态工程、富营养水体的生态恢复等.

关 键 词:浮床  水生植物  水生动物  微生物膜  难降解有机物  组合型  浮床  生态系统  水质改善  湖泊水  水源地  净化效果  area  source  water  lake  quality  improvement  ecosystem  floating  combined  生态恢复  水体  富营养化  生态工程  污水净化
收稿时间:2006-07-04
修稿时间:2006-07-042006-10-24

Effect of combined floating bed ecosystem on water quality improvement in lake water source area
LI Xianning,SONG Hailiang,ZHU Guangcan,LI Dacheng and LV Xiwu.Effect of combined floating bed ecosystem on water quality improvement in lake water source area[J].Journal of Lake Science,2007,19(4):367-372.
Authors:LI Xianning  SONG Hailiang  ZHU Guangcan  LI Dacheng and LV Xiwu
Institution:Department of Environmental Science and Engineering, Southeast University, Nanjing 210096, P. R. China
Abstract:A new type of ecological floating bed is developed that combined hydmphyte,aquatic animal and biofilm together.The purification effect of the floating bed for eutrophic lake water under static condition was tested.Result shows that the removal efficiency of TN and TP is 83.7% and 90.7% respectively during 20 days,and the trans- parency is also heightened sharply.Additionally,the floating bed shows better removal effect on non-degradative organic matters.During 25 days,the removal efficiency of r-BHC,HE,DDE,DDD,DDT can reach 25.2%, 63.8%,42.1%,71.6% and 27.6% separately.Furthermore,for benzene chloride and atraizine,up to 55.9% and 72.1% respectively.The biodegradability of non-degradative organic matters and availability of N & P for hy- drophyte are all enhanced by aquatic animal's metabolism.The new type of ecological floating bed may be used to drinking water source quality improvement,ecological engineering for wastewater purification,and ecological resto- ration of eutrophic lakes.
Keywords:Floating bed  hydrophyte  aquatic animal  biofilm  non-degradative organic matter
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