浮床黑麦草去除富营养化水体总氮的试验研究  

Removal of TN From Eutrophic Water by Lolium Multiflorum Planted on Floating-bed

作　　者：郭沛涌[1] 朱荫湄[2] 宋祥甫[3] 丁炳红[4] 邹国燕[3] 付子轼[3] 吕琦[5] 

机构地区：[1]华侨大学材料科学与工程学院 [2]浙江大学环境科学研究所,浙江杭州310029 [3]上海农业科学院,上海201106 [4]浙江省农业科学院环境资源与土壤肥料研究所,浙江杭州310021 [5]杭州市余杭区环境监测站,浙江杭州311100

出　　处：《华中科技大学学报（城市科学版）》2007年第2期33-35,40,共4页Journal of Huazhong University of Science and Technology

基　　金：浙江省自然科学基金重大项目(ZE0103);福建省自然科学基金计划资助项目(D0610012);河口海岸国家重点实验室开放基金项目(200409);华侨大学高层次人才科研启动基金资助项目(04BS312)

摘　　要：采用围隔浮床系统,研究了冬、春季节陆生黑麦草(Lolium multiflorm)对畜禽养殖富营养水体中主要营养元素氮的净化效应及动态过程。结果表明:浮床黑麦草在试验小区中生长良好,浮床黑麦草系统对富营养水体中的总氮具有明显的净化效果。当覆盖率分别为15%,30%,45%和60%时,水体中的TN分别减少了5.6mg/L,6.54 mg/L,5.42 mg/L及3.36 mg/L。覆盖率为30%时,TN的去除率最高,达到74.91%。对浮床黑麦草去除水体总氮的动态过程拟合表明,符合三次方程曲线。TN removal characters and dynamics processes of eutrophic water by Lolium multiflorum planted on floating-bed were studied in winter and spring seasons. The results showed that Lolium multiflorum could grow well on floating-bed. Lolium multiflorum had a good effect on the removal TN from eutrophic water body. When the floating-bed coverage rates were set up at 15% ,30% ,45% and 60%, the concentration of total nitrogen were reduced 5. 6, 6. 54, 5. 42 and 3. 36mg/L respectively. The removal rate of TN by Lolium multiflorum was 74. 91% when the floating bed coverage rate was 30%. The fitting method of dynamics processes of removing TN by Lolium multiflorum showed it accord with cubic curve.

关 键 词：富营养化 植物修复 总氮 净化 

分 类 号：X703[环境科学与工程—环境工程]