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ID:31987803
大小:2.50 MB
页数:93页
时间:2019-01-30
《焦化废水生化出水物化脱色和去除cod的实验.研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、太原理工大学硕士研究生学位论文TRYANDRESERCH0NC臼Ro凇A套TDCODPHfySICALCHE^皿CALTREAn涸巳NTOFCOKINGWrASTEⅥ姗REFFLIJENTWⅢCHHASBEENTREATEDBYBIOCHE^缸CALPROCESSESABSTRACTCokingwastewaterwasproducedintheprogressesthatcrackingcoalunderhightemperaturetogetcokeandcoalgasandreclaimingbyproductssuc
2、h鹊tarandbenzene.Componentswerecomplexincokeplantwastewater,inwhichcontainsrefractoryorganiccompoundssuchastar,benzene,phenol,cyanide,quinolineandpyridineetc.Sochromaofthatishigh,andgreatchangeshappenedusuallytowaterqualityandwaterflow.Itisatypicalindustrialwastewat
3、er,inwhichcontainsanumberoftoxicandnocuousnesscompounds.TheremovalrateofchromaandCODwasnotfavorablebyusingbiologicaltreatmentprocessesseparately,andtheeffluentconcentrationcouldntattainthewastewaterdrainagelevelwhichbroughtsevereharmtoourenvironmentandcommunities.I
4、thadbeendemonstratedthatadoptingtheassembledprocessesincludedadsorption,flocculmionandoxidationcouldeffectivelyreducechromaandCODofcokingwastewatereffluentwhichhasbeentreatedbybiochemicalprocesses,andmadeitreachthewastewaterV。奎堕垄三奎堂堡主堑塞生堂垡煎壅drainageleveltwoInthisre
5、search,methodsofsinglefactorandperpendicularityexperimentalanalysiswereusedtoacertainthereactionconditionsoflowmolecularweightinorganicflocculatingagents(Fe2(S04)3,A12(S04)3),highmolecularweightinorganicflocculatingagents(PFS,PAC,KS一103,M180,PAFS),absorbingagents(d
6、efineddiatomite,activatedclay,flyash,slag)andoxidants(H202,NaCl0)underthebestdisposaleffect;meanwhile,asorbingagents,flocculatingagentsandoxidantswereassembledtoembodytheeffectofcooperationofdifferentkindsofelements.Theresultsofthisresearchareasfollows:(1)Withtheus
7、eofsinglefactoranalysis,Fe2(S04)3andA12(S04)awereadoptedintheexperiments.Thebestreactionconditionswereascertainedthatthequantitiesofthrowingtwoflocculatingagentswere300mg/L~350mg/L,pHvalueswere5~6,thetemperatureis30"C,quantitiesofthrowingPAMwere4mg/L~5mg/L,highstir
8、ringvelocitywascot=l000r/mintI=2min,lowstirringvelocitywasc02=150~200r/mint2=5min,sealingtimewast3=10min.TheresultsindicatedthatFe2(S04)3wasbette
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