电镀工艺污染及其治理郭永葆1

SCI-TECHINFORMATIONDEVELOPMENT＆ECONOMY201121311、———。。。22.1———2.1.1。、、。。2.1.2、、。。2.1.2.1。NaOHNa3PO4、Na2CO3、Na2SiO350℃～100℃3min～20min。。2.1.2.2、。。2.1.3。。16Hz～24Hz。、。。2.22.2.12.2.1.1、、、、。2.2.1.280g/L～90g/L38g/L～55g/L。80g/L～120g/L95g/L～140g/L50g/L～70g/L65g/L～90g/L30g/L～50g/L40g/L～60g/L。3g/L～5g/L15g/L～25g/L、8g/L～15g/L。70g/L～90g/L20g/L～40g/L60g/L～135g/L35g/L～45g/L65g/L～80g/L。2.2.1.3。0.25g0.15g。pH7、、0.1mg/L。2.2.2。。HV400MPa～1200MPa;1005－6033201131－0163-032011－09－01121.0300132.030001。、、、。。X781.1A16365％。。2.2.2.1、、。1CrO3150g/L～400g/L。Cr2O72－。Cr2O72－2.5mg/L～3.0mg/L,。、、、。15min50％、、。。2H2SO4mCrO3∶mH2SO4100∶1。3H2SiF6SiF62－20％。2.2.2.21。2。33.1,pH＞10、。3.2、、。CN－≤0.5mg/L。3.2.1。NaCN＋NaCIO→NaCNO＋NaCl2NaCNO＋3NaClO＋H2O→2CO2＋N2＋2NaOH＋3NaCl3.2.2。3.2.3ClO2、、、、。pH＝8.5～11.52ClO2＋2NaCN＋2NaOH＋2HO→2NACNO＋2NACl＋6OH－pH＝7.5～8.52NaCNO＋2ClO2＋2H2O→N2＋2CO2＋2NaCl＋4OH－3．2．4、、。3．3≤0.5mg/L,1.5mg/L。3.3.1。。、2H2Cr2O7＋6NaHSO3＋3H2SO4→2Cr2SO43＋3Na2SO4＋8H2OH2Cr2O7＋3Na2SO3＋3H2SO4→Cr2SO43＋3Na2SO4＋4H2O2H2Cr2O7＋3Na2S2O5＋3H2SO4→2Cr2SO43＋3Na2SO4＋5H2OCr2SO43＋6NaOH→2CrOH3↓＋3Na2SO43.3.2、。3.3.3。3.42.0mg/L、5.0mg/L。H2SO4pH8.5～8.8ZnOH2、。44.1。、、、。4.2。。1.M.2007.2.M.2007.3.M.2006.────────────────194481967、030013.E-mail:[e-mail]164TheUrbanEcologicalEnvironmentOptimizationBasedonUrbanEcologicalSpace———TakingtheCitiesinPoyangLakeEcologicalEconomicZoneastheExamplesCHENXiao-gang,ZHOUXin,LINXiangABSTRACTStartingfromtheconceptofurbanecologicalspace,andtakingthecitiesinPoyangLakeEcologicalEconomicZoneastheexamples,thispaperexpoundstheinfluencesofurbanecologicalspaceontheconstructionofurbanecologicalenvironment,andputsforwardsomepathsfortheconstructionofurbanecologicalenvironmentinPoyangLakeEcologicalEconomicZoneforprovidingsomeideasfortheconstructionofecologicaleconomydemonstrationareainwhichtheecologicalcivilizationandeconomic－socialdevelopmentarecoordinatedandunifiedandthepeopleliveinharmonywithnature.KEYWORDS:urbanecologicalspace;urbanecologicalenvironment;optimizationofenvironment;PoyangLakeEcologicalEconomicZone157EconomicAnalysisontheCausesofHousePriceRisingHANRui-chunABSTRACT:Inthelightoftherisingtrendofhouseprice,andfromtheaspectsofpoliticaleconomicsandwesterneconomics,thispaperanalyzesthepresentsituationofthatthehousepricehasremainedhighinChina,andprobesintotheinfluencesofthepolicyofhousingpropertytaxonthehouseprice.KEYWORDS:commodityhouse;houseprice;housingpropertytax;economicanalysis154“。”3。、。────────────────199122009555611130.ElectroplatingProcessPollutionandItsTreatmentGUOYong-bao,ZHENGYong-tingABSTRACT:ThePollutionofelectroplatingandpaintsprayingprocessesismoreseriousinmechanicalandelectricalindustry.Especiallyinthepretreatmentbeforeelectroplating,cyanideelectroplatingandhexavalentchromiumelectroplating,thelargeamountoftoxicharmfulelectroplatingwastewaterwillbeproduced.Thispaperanalyzesthetechnologicalprocessesofproducingelectroplatingwastewater,andintroducessometechnologiesforthetreatmentofelectroplatingwastewater,whichcanprovidesomereferencesforconstructionproject’senvironmentalimpactassessment.KEYWORDS:electroplatingprocess;electroplatingwastewater;pollutiontreatmentE-mail:[e-mail]165