六种藻类膜脱氮除磷的实验研究
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2020-01-22 11:58:38
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第38卷第3期2013年6月广西大学学报:自然科学版JournalofGuangxiUniversity:NatSciEdVol.38No.3June2013收稿日期:2012-12-03;修订日期:2013-01-12基金项目:国家自然科学基金资助项目(51269002);广西大学科研基金资助项目(X090017)通讯联系人:魏群(1971-),男,湖南隆回人,广西大学副教授,博士;E-mail:hustweiqun@163.com。文章编号:1001-7445(2013)03-0668-05六种藻类膜脱氮除磷的实验研究蔡元妃,魏群,郭莉娜,孙红云,周军,张金莲(广西大学环境学院,广西南宁530004)摘要:在连续光照强度为3500lx,温度为(25±2)℃的实验条件下,以硝酸钠、硫酸铵、磷酸二氢钾为氮磷营养源,配制1800mL模拟废水,其总磷(TP)、总氮(TN)、氨氮(NH+4-N)的初始浓度分别为10.57、36.56、19.40mg/L,以立体弹性聚氯乙烯为载体,鞘藻(Oedogoniumsp.)、水华鱼腥藻(Anabaenaflos-aquae)、蛋白核小球藻(Chlorellapyrenoidosa)、斜生栅藻(Scenedesmusobliquus)、水网藻(Hydrodictyonreticulatum)、阿氏颤藻(Oscillatoriaagardhii)等为实验藻种,进行了为期6d的藻类膜脱氮除磷实验。结果表明:在6种实验藻种中,蛋白核小球藻最适合作为脱氮除磷废水处理的挂膜藻种,其藻类膜的TP、TN、NH+4-N去除率最高,分别为87.88%、87.27%、89.25%;藻类膜脱氮除磷能力与其叶绿素含量无正相关性,蛋白核小球藻藻类膜的叶绿素含量最小,为0.0654mg/L,水华鱼腥藻藻类膜的叶绿素含量最大,为0.2450mg/L。关键词:藻类膜;蛋白核小球藻;氮;磷;叶绿素中图分类号:X172文献标识码:ANitrogenandphosphorusremovingfromwastewaterbysixspeciesofalgalbiofilmCAIYuan-fei,WEIQun,GUOLi-na,SUNHong-yun,ZHOUJun,ZHANGJin-lian(SchooloftheEnvironment,GuangxiUniversity,Nanning530004,China)Abstract:Theremovaleffectsofnitrogenandphosphorusfromwastewaterwereinvestigatedwithsixspeciesofalgalbiofilm(Oedogoniumsp.,Anabaenaflos-aquae,Chlorellapyrenoidosa,Scenedesmusobliqnus,Hydrodictyonreticulatum,Oscillatoriaagardhii)undercontinuouslightof3500lx,temper-atureof(25±2)℃andPVCasthecarrier.Thevolumeofwastewaterwas1800mL,andregardedNaNO3,(NH4)2SO4,KH2PO4asnitrogenandphosphorusnutrition,theinitialconcentrationofto-talphosphorus(TP),totalnitrogen(TN),ammonianitrogen(NH+4-N)reached10.57,36.56,19.40mg/L,respectively.TheresultsshowedthatChlorellapyrenoidosawasmostsuitedtoformal-gaebiofilm,andtheremovalefficienciesofTP,TN,NH+4-Nreached87.88%,87.27%,89.25%,respectively.Therewerenopositivecorrelationbetweenremovalefficienciesofnitrogenandphos-phorusandchlorphyllcontentofbiofilm,chlorphyllcontentofChlorellapyrenoidosawaslowest,reaching0.0654mg/L,andAnabaenaflos-aquaewashighest,reaching0.2450mg/L.Keywords:algalbiofilm;Chlorellapyrenoidosa;nitrogen;phosphorus;chlorophyll藻类
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