33IndustrialWater&WastewaterVol.30No.31999,,Fe2+,Fe2+,pH012110,,FeSO4,Ca(OH)2,Fe(OH)2,,,,,,,,[1],FeSO4,1FeSO4111:FeSO4300500g/L,pH110,7090,160t/d112FeSO4FeSO41,,,,:23::1999-04-2512(11300074;21300456):,(PFC),:;;;:X757:A:1006-4826(1999)03-0033-02TheReuseofSteelPicklingWasteLiquorWUGuang-hongCHUCheng-shanABSTRACT:Thecharacteristicsofsteelpicklingwasteliquordischargedbyasteelmillwerede2scribed.Ferroussulfateinsteelpicklingwasteliquorwasreclaimedtoproducepolymericferricsulphatecoagulant(PFC).Thestudyshowedthatthisprocesswasfeasible.Thepurposesofwaterenvironmentpollutionreduction,theresourcesrecoveryandthereusewereachieved.KEYWORDS:steelpicklingwasteliquor;ferroussulfate;polymericferricsulfate;coagulant34IndustrialWater&WastewaterVol.30No.31999(),,,45FeSO417H2O213FeSO4PFC,5,,FeSO4200kg;,,3FeSO4,,,FeSO4,,:[1]1[J]1,1998;18(3):6-8[2],()[M]:,1998,258-259:(1971-),,1993,19951FeSO4,,(EPTEE)(EPTEE),45,,,2(PFC)211[2]FeSO4,FeSO4Fe2(SO4)3,SO42-,SO42-Fe2(OH)n(SO4)3-n/2,[Fe2(OH)n(SO4)3-n/2]mFe3+,,:,,,,pH:8.0915212PFCPFC2,2