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《复合立体生物浮床技术对微污染水体氮磷的去除效果》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、万方数据生态与农村环境学报2010,26(增刊1):24—29Journalo/也colog)’aml,(ural止nFz^onment复合立体生物浮床技术对微污染水体氮磷的去除效果张毅敏,高月香,吴小敏,陈楚星,魏京玲(环境保护部南京环境科学研究所,江苏南京210042)摘要:复合立体生物浮床技术是一种有效的水体污染控制技术。利用竹子制成网格状的立体框架,安放植物、螺蚌等,同时配以弹性材料,形成复合生物浮床。选用芋头、慈姑、荸荠、水芹、蕹菜和美人蕉作为浮床植物,研究其在夏季和秋季对微污染水体中氮磷的去除
2、效果。结果表明,在夏季试验中,蕹菜浮床>美人蕉浮床、荸荠浮床、芋头浮床>慈姑浮床、水芹浮床;在秋季试验中,芋头浮床>慈姑浮床、美人蕉浮床、蕹菜浮床>荸荠浮床、水芹浮床。在夏季、秋季试验中,芋头浮床的除氮效果一直很好,对总氮的最大去除率分别达7l%和62%;而蕹菜浮床的除磷效果一直很好。对总磷的最大去除率分别达30%和81%。比较了复合立体浮床与传统平面浮床对总氮、总磷处理效果的差异,指出复合立体浮床技术在微污染水体的生态修复方面具有较好的应用前景。关键词:复合立体生物浮床;氮;磷;去除效果;微污染水体中图
3、分类号:X52文献标志码:A文章编号:1673—4831(2010)SI一0024—06EffectoftheTechniqueofComplexThree-DimensionalEcologicalFloating-BedinRemovingNandPFromSUglIflyPollutedWaterBody.ZHANGYi-min,GAOYue—xiang,WUXiao-min,CHENChu-xing,WE/Jing-ling(NanjingInstituteofEnvironmentalScien
4、ces。MinistryofEnvironmentalProtection,Nanjing210042,China)Abstract:Thetechniqueofcomplexthree-dimensionalecologicalfloating—bedisalleffectivewaterpollutioncontroltech·noiogy.Thecomplexfloating-bediscomposedofaframeworkwithgridsmadeofbamboo。plantsandmollus
5、ks,such舾snailsandmussels,onthesrids,anelasticmaterialplacedonorundertheframework.Co/ocas/aesctdenta,Saginariasagittifolia,Eleocharisdulcis,Oenanthajavanica,J如m咖squat/caandCannagenera//swereused够subjectsinthere-searchOiltheireffectinremovingnitrogenandphos
6、phorusfromslighflypollutedwaterbodyinsummerandfall.ResultsshowthattheNandPremovingeffectsofthesixfloating-bedsdifferentinplantonthebedfollowedtheorderofIpom伽naquatica>Cannageneralis,Eleocharisdulcis,Colocasiaesculenta>Sagitt砒sagittifolia,Oenanthajavanicai
7、nsummerandCo/ocas/a部c“拓,mⅡ>Sagittarias口砂l扣妇,Cannageneralis,咖绷仰阳aquatica>Eleocharisdulcis,Oenanthajavani-cainfall.ObviouslyCo/ocas/aescu/entashowedgoodN·removingeffectinbothsummerandfall,withmaximumremovalratereaching71%and62%,respectively,oftotalN,while伽D
8、,,m∞aquat/caisgoodinPremovingwithmaximum净movalratereaching30%and81%,respectively,oftotalP.Comparisonbetweenthenewfloating-bedwiththetraditionalflatfloatingbedinNandPremovingeffectdemonstratesthattheformerenjoysabrig
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