Co-immobilization of Pseudomonas stutzeri YHA-13 and Alcaligenes sp. ZGED-12
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Environmental Technology
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Co-immobilization of Pseudomonas stutzeri YHA-13 and
Alcaligenes sp. ZGED-12 with polyvinyl alcohol–alginate
for removal of nitrogen and phosphorus from synthetic
wastewater
Yonghe Hanab, Wenxian Zhanga, Wenxian Lua, Zhihua Zhoua, Zhigang Zhuanga & Min Lia
a College of Life Sciences, Fujian Normal University, Fuzhou, People's Republic of China
b Biogeochemistry & Environmental Remediation Laboratory (BERL), School of the
Environment, Nanjing University, Nanjing, People's Republic of China
Accepted author version posted online: 13 May 2014.Published online: 04 Jun 2014.To cite this article: Yonghe Han, Wenxian Zhang, Wenxian Lu, Zhihua Zhou, Zhigang Zhuang & Min Li (2014) Co-immobilization
of Pseudomonas stutzeri YHA-13 and Alcaligenes sp. ZGED-12 with polyvinyl alcohol–alginate for removal of nitrogen and
phosphorus from synthetic wastewater, Environmental Technology, 35:22, 2813-2820, DOI: 10.1080/09593330.2014.923516
To link to this article: http://dx.doi.org/10.1080/09593330.2014.923516
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www.tandfonline.com/page/terms-and-conditionsEnvironmentalTechnology,2014Vol.35,No.22,2813–2820,http://dx.doi.org/10.1080/
09593330.2014.923516
Co-immobilizationofPseudomonasstutzeriYHA-13andAlcaligenessp.ZGED-12with
polyvinylalcohol–alginateforremovalofnitrogenandphosphorusfromsyntheticwastewater
YongheHana,b†,WenxianZhanga†,WenxianLua,ZhihuaZhoua,ZhigangZhuangaandMinLia∗
aCollegeofLifeSciences,FujianNormalUniversity,Fuzhou,People’sRepublicofChina;bBiogeochemistry&EnvironmentalRemediationLaboratory(BERL),SchooloftheEnvironment,NanjingUniversity,Nanjing,People’sRepublicofChina
(Received19July2013;finalversionreceived7May2014)
Nitrogen(N)andphosphorus(P)arethetwomainfactorscausingwatereutrophication.Immobilizedmicro-organismshavebeenwidelystudiedinNandPremoval.However,theeffectsofvariousimmobilizingconditionsontheremovalefficiencyofNandPusingimmobilizedmicro-organismbeads(IMOBs)remainunclear.Polyvinylalcohol(PVA)andalginate,asthetwofrequentlyimmobilizing-usedmatrixes,wereusedforco-immobilizingPseudomonasstutzeriYHA-13andAlcaligenessp.ZGED-12.PVA,alginateandCaCl2contents,immobilizationtimeanddifferentwetbiomassratiosofP.stutzeritoAlcaligenessp.wereconductedtoelucidatetheirrolesinandinfluencesontheremovalefficiencyofNandPfromsyntheticwastewater.TheapplicationpotentialofIMOBswasestimatedaswell.ResultsshowedthatIMOBspreparedbycross-linkof4%PVAand2–3%alginatewith5%CaCl2andsaturatedboricacidsolutionfor10–15minarethebestonesinremovalofNandP.ThoughIMOBscontainingP.stutzeriand/orAlcaligenessp.werecapableofremovalofthetwonutrients,thehighestremovalefficiencywasobservedwhenthewetbiomassratioofP.stutzeritoAlcaligenessp.wasadjustedto2:2.Inaddition,theIMOBswereofgoodabilitytoremovechemicaloxygendemand(COD),NO−3,NO−2,NH+4-N,totalnitrogen(TN)andtotalphosphorus(TP)fromartificialwastewater.Ofwhich,micro-organismsimmobilizedinmatrixesweremainlyresponsibleforNO−3andTPremoval.Therefore,P.stutzeriYHA-13andAlcaligenessp.ZGED-12arereliablebioresourcestoremoveNandPfromwastewater.
Keywords:immobilization;Pseudomonasstutzeri;Alcaligenessp.;nitrogen;phosphorus
