摘要
Basedonthecharacteristicsofpicklingwastewaterinthecold-rollingproductionofstainlesssteel,anewprocessingroute,featuringsourcesludgereduction,wastewatertwo-stagetreatment,heavymetal-containedsludgeandcalciumsaltsludgeseparatingrecovery,wasproposed.Asshownbytheresearchresults,afterthetwo-stageprocesstreatment,theeffluentwatercansteadilyreachtheemissionstandards,thesludgeyieldcanbedecreasedbymorethan8%;withintheheavymetal-containedsludge,therecoveryratesofFe,CrandNicaneitherreachorsurpass95%,andthetotalcontentofFandScandroptoaround3%.Therefore,thesludgeinthefrontpartcanbeusedasferricdust.Inthecalciumsaltsludge,therecoveryrateofFcaneitherreachorsurpass85%,andthetotalcontentsofFe,CrandNicanfallbelow0.5%.Sothesludgeintherearpartcanbeusedasfluorgypsumorfluorite.Meanwhile,theresultsoftheanalysisonheavymetalsleachingtoxicityandmorphologicdistributionindicatethatthetwokindsofsectionalizedsludgearenotclassifiedashazardouswastes,whichhaveastablebehaviorandbetterutilizationvaluescomparedwiththeformermixed-sludge.
出版日期
2010年02月12日（中国期刊网平台首次上网日期，不代表论文的发表时间）
