磷酸钙沉淀法去除厌氧养猪废水中磷的实验研究（英文）

第27卷第4期2010年8月黑龙江大学自然科学学报JOURNALOFNATURALSCIENCEOFHE1LONGJIANGUNIVERSITYVo1．27No．4August，2010OExperimentalstudyontheremovalofphosphorusfromSwinewastewaterbycalciumphosphate‘‘‘methodprecipitationmetnooTIANAi．min，DONGNing，SONGYong—hui，ZHOUJian—shi，JIANGAn．xif1．SchoolofMunicipalandEnvironmentalEngineering，HarbinInstitute。fTechnology，Harbin150001，China；2·Trans‘lationCollege．ShandongUniversity，Weihai264209，China；3．WaterPolluti。nControlEngineeringLaboratory，ChineseResearchAcademyofEnvironmentalSciences．Beijing100012，China；4．CollegeofChemicalEngineeringandTechnol’ogy，ChinaUniversityofMiningandTechnology，Xuzhou221008，China)Abstract：Phosphorusremovalfromsimulatedanaerobically—treatedswinewastewaterwasstudiedbvcalciumsaItprecipitationmethod，andtheoptimumratioofsuitablecalciumtophosphoruswasob’tained．SimuItaneous1v．batchandcontinuousflowtestswerecarriedouttocomparetheefficiencyofauicklimeandslakedlime，andthedifferencebetweenlimeandcalciumsaltinordertooptimize，there’agentforphosph0rusremova1．Thereusltsshowedthattheprecipitationmethodcaneffectivelyremovephosphorusfromswinewastewater，meanwhile，reducelowerthecolorandturbidity。Keywords：swinewastewater；calciumphosphate；phosphorusremovalCLCnumber：O189．1Documentcode：AArticleID：1001—7011(2010)04—0516—07Introductionintherecentlytwodecades，thelivestockindustryhasdevel0PedinChina．Andthescaleoflivestockandpoultryproductionineludingpigastherepresentativeriseuprapidly[．Duringtheprocessoflivestock’sbreedingandliving，alargequantityofexcretaandwasteareproducedwhichnotonlycausecontamination，butalsoaffectthelivingenvimnment[一．Thepollutionloadofpigbreedingwastewaterhigher，andthephosphorusinthewastewater．inasense．isoneofthevaluablenutrientresources．Atpresentphosphorusresourcescarcityrisoneofthenon—renewablenatura1resources)andoverhi【ghphosphorusinwastewater(whichmayleadtoeutrophieati0n、arecontradictory[4—6。．Tosolvetheseproblemsinthisstudythephosphoruswasfixedinthewastewaterresi，duebvcnstallization，whiehcanbeusedasfertilizerproducinggoodenvironmenta