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时间:2019-05-27
《人工湿地中除磷填料的筛选及其除磷能力》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、中国环境科学2013,33(2):227-233ChinaEnvironmentalScience人工湿地中除磷填料的筛选及其除磷能力王振,刘超翔,董健,刘琳,李鹏宇,一,郑加玉,(1.中国科学院城市环境研究所,福建厦门361021;2.中国科学院研究生院,北京100049;3.西安建筑科技大学西北水资源与环境生态教育部重点实验室,陕西西安710055;4.东北林业大学林学院,黑龙江哈尔滨150040)摘要:针对猪场废水水质特点,对4种填料的理化特性进行了分析,并考察了4种填料的除磷能力.结果表明,废砖块和沸石的表面微结构更有利于生物
2、膜的生长,而海蛎壳与废砖块则具有较高的除磷潜能;4种填料对磷素的理论饱和吸附量依次为海砺壳>废砖块>火山岩>沸石,海蛎壳对磷素的吸附主要为化学吸附,而废砖块、火山岩和沸石对磷素的吸附主要为物理吸附,其中废砖块对磷素的吸附过程中存在化学吸附作用;在动态吸附试验中,海蛎壳对磷素的去除效果最好,其次为废砖块、火山岩和沸石,4种填料去除磷素的主要途径由其化学成分和化学形态决定.由试验结果可知,海蛎壳是人工湿地处理猪场废水时较为理想的除磷填料.关键词:猪场废水;人工湿地;填料;除磷;海蛎壳中图分类号:X703文献标识码:A文章编号:1000—6
3、923(2013)02—0227-07Screeningofphosphate-removingfiltermediaforuseinconstructedwetlandsandtheirphosphorusremovalcapacities.WANGZhen,。,LIUChao.xiang,DONGJian,,LIULin,LIPeng.yu,,ZHENGJia.yu,(1.InstituteofUrbanEnvironment,ChineseAcademyofSciences,Xiarnen361021,China;2.Gradu
4、ateUniversityofChineseAcademyofSciences,Beijing100049,China;3.KeyLaboratoryofNorthwestWaterResources,EnvironmentandEcologyofMinistryofEducation,Xi’anUniversityofArchitectureandTechnology,Xi’an710055,China;4.SchoolofForestry,NortheastForestryUniversity,Harbin150040,China
5、).ChinaEnvironmentalScience,2013,33(2):227~233Abstract:Accordingtothecharacteristicsofswinewastewater,physicochemicalpropertiesofoystershell(OS),brokenbricks,volcanics,andzeoliteweredetermined,aswellastheirphosphorusremovalcapacities.Theresultsshowedthat,brokenbdcksandz
6、eoliteshowedmoresuitablepotentialenvironmentsforbiofilmbacterialgrowth,whereasOSandbrokenbrickspossessedofhighpotentialcapacitiesforphosphorusremova1.OShadthehighestphosphorusadsorptionvaluebyisothermaladsorptiontests,followedbybrokenbricks,volcanics,andzeolite,thetypeo
7、fadsorptionofPO4onOSWasdefinedaschemicaladsorption,thetypesofadsorptionofP04onbrokenbricks,volcanics,andzeoliteweredefinedasphysicaladsorption,andtheprocessthatoccurredduringphosphorusadsorptiononbrokenbricksWasunderstoodtobechemicaladsorption.OSWasmostefectiveatphospho
8、rusremovalinthedynamicadsorptionexperiments,followedbybrokenbricks,volcanics,andzeolite.Besides,themainphospho
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