国外氮氧化物催化法合成聚合铁新工艺李风亭

同济大学环境工程学院(上海,200092)　　李风亭　　　,,。　　　　　　　,,,,,,。,。Fe3(OH)45+、Fe4O(OH)46+、Fe6(OH)126+,,、、,COD、BOD、、、,pH。、、、、。,,,,,1t,,,,。,〔1〕。1　　　,。、、、,,,。H2SO4,。,。〔2〕。:H2SO4+2MNO22HNO2+M2SO4(1)H2SO4+2HNO2+2FeSO4Fe2(SO4)3+2NO↑+2H2O(2)2NO+O22NO2↑(3)H2SO4+NO2+2FeSO4Fe2(SO4)3+NO↑+H2O(4):4FeSO4·7H2O+(2-n)H2SO4+O2　　2Fe2(OH)n(SO4)3-n/2+(30-2n)H2O(5)　　,M,0≤n2。,,NONO2,NO,NO2。,,。,。,,。2　　　,5　.,1992,12(6):22～246　,.,1993,13(4):7～117　.,1989,9(5):14～168　.’96,1996.19～239　WangZumo,ChenKang.IWC-91-6,1991.56～6110　.’97,1997.57～59:,1970,1994,,,。收稿日期:1998-03-03—9—工业水处理1998—09,18(5)　　　　　　　　　　　　　　　国外氮氧化物催化法合成聚合铁新工艺,,1〔3〕。图1　利用静态混合器生产聚合硫酸铁工艺流程1.　2.　3.　4.　5.　　13,,,、,1,。,,。　　〔4〕。,,,,。,,。　　Derka,〔5〕。70℃～150℃,,,。,。,,,,。　　,,,。,,,,。:、、、。,,,、,,30～40min1t。　　。,、,,,,,,。—。,,。,。,,。　　,,,,。,,,,。1　,,.,1995,11(1):422　.,1994,10(8):393　JP950580384　JP950547045　US5194241:,1963,1997,,,。收稿日期:1998-03-16—10—试验研究　　　　　　　　　　　　　　　　　　　　　　　　　　　　　工业水处理1998—09,18(5)DEVELOPMENTANDAPPLICATIONOFMODIFIEDCATIONICNATURALPOLYMERFLOCCULANT　YinHua,PengHui,XiaoJin(Dept.ofBiologicalEngineering,Ji-nanUniversity,Guangzhou510632):Chin.J.Ind.WaterTreat.,18(5),1998,pp.1～3　　Themodifiednaturalpolymerflocculantpossessesmanyadvantages,thusgreatattentionhasbeenpaidtoitsdevelopmentandapplicationbyscholarsbothathomeandabroadinrecentyears.Inthispaper,theprogressofre-searchandapplicationofthederivativesofmodifiedcationicstarch,lignin,chitinwhichhavebeenusedinwastewatertreatmentandplantgumwhichhassomeotherfunctionsinadditiontoflocculationhasbeenbrieflyreviewed.　　Keywords　starch,lignin,chitin,cationicflocculantDISCUSSIONSONTHESUSTANABLEDEVELOPMENTOFWATERANDWASTEWATERINDUSTRY　QiLianhui(Bei-jingCentralEngineeringandResearchIncorporationofIronandSteelIndustryCERIS,Beijing100053):Chin.J.Ind.WaterTreat.,18(5),1998,pp.4～6　　Sustanabledevelopmentofthewaterandwastewaterindustryisdiscussedtheoreticallyandrealistically.Thedi-rectionandmanagingstepsaregiven.　　Keywords　waterandwastewaterindustry,sustan-abledevelopment,managingstepsSTUDYOFTHESYNTHESISANDPERFORMANCEOFPHOSPHORUS—CONTAININGPOLYMERS　YangWen-zhongLuChangqing,WangYongetal.(NanjingChemicalIndustryUniversity,Nanjing210009):Chin.J.Ind.WaterTreat.,18(5),1998,pp.7～8　　Thesynthesisofisopropylenephosphoricacid(IPPA)andco-polymerizationofIPPAwithacrylicacid(AA)、2-acrylamide-2-methylpropanesulfonicacid(AMPS)topreparecopolymerAA/IPPA/AMPSweredescribed.Thescale-corrosioninhibitionofAA/IPPA/AMPSandotherpolymerswereevaluatedandcompared.　　Keywords　polymer,scale-corrosioninhibition,per-formanceevaluationNEWPROCESSABROADFORTHEPREPARATIONOFPOLYFERRICSULFATECATALYZEDBYNITRICOXIDE　LiFengting(SchoolofEnvironmentalEngineering,TongjiUniversity,Shanghai200092):Chin.J.Ind.WaterTreat.,18(5),1998,pp.9～10　　Thepaperreviewsafewofnewprocessesabroadforthepreparationofpolyferricsulfateandpolyferricchlo-ride,whicharecatalyzedbynitricoxideintheabsenceofoxygenorair.Therearemanyfactorsaffectingthereactiontime.Accordingtopreviousexperience,weappraisethetechnologicalfeaturesandbringupsomemeasurestoen-hanceproductionefficiency.　　Keywords　polyferricsulfate,polyferricchloride,preparation,catalysis,nitricoxideTHERESEARCHANDPREPARATIONOFASLOW-DIS-SOLVEDPHOSPHATEWATERTREATMENTAGENTANDITSUSESINBOILERWATERTREATMENT　LiuZhenfa,WangYulin,JiBaoxia(TheInstituteofEnergySources,HebeiAcademyofSciences,Shijiazhuang050081):Chin.J.Ind.WaterTreat.,18(5),1998,pp.11～12　　Thesynthesisofaslow-dissolvedphosphatewatertreatmentagentisintroduced.Itsperformanceofscaleinhi-bitionandanti-corrosionisstudied.Theapplicationofthiswatertreatmentagenttolow-pressureboilerwatertreat-mentshowsthatthiswatertreatmentagentisconvenientinoperation,lowinwatertreatmentcostandveryefficientinscaleinhibitionandanti-corrosion.　　Keywords　phosphate,watertreatment,scaleinhibi-tion,anti-corrosionRESEARCHESONTHEDECOLORIZATIONOFHIGHCOL-ORITYDYEINGWASTEWATER　LiuYi,ZhangJianhui,LiangLongwuetal(DepartmentofChemistry,ZhongshanUniversity,Guangzhou510275):Chin.J.Ind.WaterTreat.,18(5),1998,pp.15～16　　Anewmethodhasbeenestablishedfordecoloringofhighcoloritydyeingwastewaterwithoxide-flocculationre-actor(OFR)technique.Themechanismofdyeandothercontaminantsremovalisactuallytheoxidationofhydroxylradical(·OH).Variousfactorswhetherphysicalorchemi-cal:cellvoltage,mainelectrodedistance,testingsolution,pHvalue,airflowrate,treatingtimeetc,whichaffectedthedecoloringratehavebeenstudied.Theresultsofcon-taminantsremovalindyeingwastewaterforcolority10000undertheopticaltestingconditionwereverygood:de-coloringrate99%,CODCrremovalrate75%.　　Keywords　dyeingwastewater,decolorization,oxide-flocculationreactorEXPERIMENTALSTUDYONTHETREATMENTOFACID-BEARINGWASTEWATERFROMSULPHAMIDEPRODUC-TION　GaoJun,DiaoLitong,LiXinjun(DepartmentofChemicalEngineering,InnerMongoliaPolytechnicUniver-sity,Huhhot010062):Chin.J.Ind.WaterTreat.,18(5),1998,pp.17～18　　Treatmentonacid-bearingwastewaterfromsul-phamidemanufacturingwasstudied,takingcalciumcarbidedregsasneutralizerinthispaper.Theinfluencesonpro-cesseswereexamined,andthetechnologicalconditionsweredetermined.Theexperimentalresultsshowedthattreatedwastewa