焦化废水生化出水物化脱色和去除cod的实验.研究

《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