搜索
20191Jan．2019CHEMICALINDUSTＲYANDENGINEEＲING36Vol．361No．12018－11－142015ZX07203-005。1989－。E-mailyswei@rcees．ac．cn。Doi10.13353/j．issn．1004.9533.20181067123123*4551．1000852．1000493．1000854．4210015．272400。、、、、、。。、、“+”。、、。TQ448.21A1004－9533201901－0024－14StatusandProspectofZeroLiquidDischargeTechnologiesforFlueGasDesulfurizationWastewaterinThermalPowerPlantZhengLibing123WeiYuansong123*JiaoYunyi4WangGang5YueZenggang51．StateKeyJointLaboratoryofEnvironmentSimulationandPollutionControlＲesearchCenterforEco-EnvironmentalSciencesBeijing100085China2．UniversityofChineseAcademyofSciencesBeijing100049China3．BeijingKeyLaboratoryofIndustrialWastewaterTreatmentandＲeuseＲesearchCenterforEco-EnvironmentalSciencesBeijing100085China4．SchoolofCivilEngineeringUniversityofSouthChinaHunanHengyang421001China5．HuanengJiaxiangPowerGenerationCo．Ltd．ShandongJining272400ChinaAbstractTheapplicationandresearchstatusoffluegasdesulfurizationwastewaterFGDWtreatmenttechnologieswerereviewedunderthemoreandmorestrictenvironmentalpoliciesandtheintensivere-quirementsofzeroliquiddischargeZLDinChina．WithhighsuspendsolidsSShighsalinitycom-plicatedcompositionandsignificantfluctuationoftheFGDWconventionaltreatmenttechnologiesoftheFGDWfacebigchallengessuchasunstableperformancewhichcannotmeetwiththedischargestandardseriousscalingandcorrosionissueandconcentratedischargeetc．Theapplicationofconventionaltreat-menttechnologiesandtheirimprovedprocessesweremainlyreviewedwhichcannotmeetwiththestand-ardandhavebeentransferredtopretreatmentprocessinZLDapplication．ThentheZLDtechnologiesforFGDWandtheirdevelopmenttrendwerecarefullyreviewedintermsofpretreatmentprocessheavymetal361removalprocesseswastewaterconcentrationandreductiontechnologiesandsaltscrystallizationtechnol-ogies．Andtheresearch＆developmentofZLDtechnologiesforFGDWwastewaterandsometypicalappli-cationcasesofZLDprojectweresummarizedandthecombinationofmembraneseparationevaporationandcrystallizationwillbethekeytechnologiesfortheZLDofFGDWtreatment．ItwasbelievedthatZLDtreatmentwouldbecomethemajorapproachintheZLDofFGDWandthedevelopmentofnewmaterialsequipmentsandtechnologieswillpromotetheindustrialapplicationofZLDprojectforFGDWinthermalpowerplant．Keywordsfluegasdesulfurizationwastewaterzeroliquiddischargemembraneseparationevaporation-crystallizationpretreatment101a1-2。。、、、85%2。SO2、、、、--、、、90%。-1b3、。。、、、COD。、、COD4。。、1Fig．1Generatingcapacityandcoal-firedpowercapacityamong2006—2017inChinaanddesulfurizationgypsumoutputamong2006—2014inChina。、、、5220191。、、、4。1-SO2Cl－20000mg/L。151SS5.0～80.7g/L22TDS18.1～121.5g/LNa+、Ca2+、Mg2+、Cl－、F－、SO2－4SO2－3-DL/T997-200634COD5、、6-7。2Fig．2ParticledistributionofFGDWfromtwoplants1234。1DL/T997-2006Table1WaterqualityofFGDWanditsdischargelimitationDL/T997-2006pH5.4～6.76.0～9.0/mS·cm－122.9～72.7/g·L－15.0～80.70.070TDS/g·L－118.1～121.5COD/mg·L－1150.0～626.0150.0ρCl－/mg·L－12578.0～11782.0ρSO2－4/mg·L－16532.0～10925.0ρF/mg·L－156.0～236.0ρ/mg·L－12.8～5.01.0ρNH+4/mg·L－18.3～50.0ρCa2+/mg·L－1800.0～4237.0ρMg2+/mg/L600.0～2507.0ρK+/mg·L－189.0～220.0ρNa+/mg·L－12768.0～6068.0ρFe/mg·L－130.0ρAl/mg·L－150.0ρCu/mg·L－15.0～23.0ρHg/mg·L－10.1～0.50.05ρCd/mg·L－10.5～2.00.1ρAs/mg·L－10.5～1.00.5ρPb/mg·L－10.8～2.01.0ρMn/mg·L－1＜30.0ρSi/mg·L－1200.0ρSr/mg·L－10.2～10.0ρNi/mg·L－11.3～2.01.0ρZn/mg·L－11.2～2.02.0ρSe/mg·L－17.0～33.0ρCr/mg·L－10.5～10.01.5。2、、。。、、。、FS。62361。、、、8。9-10。。Tian11。、。1213。1446.5/a。。15DL/T997-200616。MF。Enoch17MF。18-MF、。MFUF。sulphatereductionbacteriaSＲB、、。EPA3%319。Chao20-Biodegradation-ElectrontransferwithsulfurmetabolismintegratedprocessBE-SISＲBCOD、TOC、87.99%、87.04%、30.77%45.17%。21UASBSＲBSO2－46kg·m－3·d－178%COD82%SO2－4。22-23。、、24-25。319Fig．3TechnologiesdistributionforFGDWtreatmentinUS19337%3。、、44。3.1、pH、。MF/UF。、、。7220191。。26NaOHMgOH2。27CaSO4、FS-66、CaOH2+Na2CO3、NaOH+Na2CO34NaOH+Na2CO3MF。CaMg。Xia28CaMgNa2CO3、Na2C2O4、NaF、Na2SO44CaMgOH299.3%。Yu29NaAlO283.94%4881mg/L784mg/L。-Cl－Cl2H2CaOH2Cl－30。MFUF。31MFSDI0.2NTU4.0ＲO。TMF31-32。UF33-35。、37-38。、、pH、、。Liu39Fe/C/AlSSCOD99.9%89%F、Ni、Hg、Mn、Pb、Cd、Cu86%～98%。40、SS。。Wei20-BESISＲBCOD、TOC、87.99%、87.04%、30.77%45.17%。Jiang41、SulfatereductionautotrophicdenitrificationandnitrificationintegratedSANISCOD94.00%85.50%SＲB。3.2。1。、。42、、、、、、43。Czarna44HgHg99%。Guan45MnZnpH70.85mmol/g。39-4046。0、、47-48。Huang49-500、40Se、Hg、。5SeHg10μg/L10ng/LAs、Cd、Cr、Ni、PbZn10－951。52。Zhang53UASBSＲB82361HgPb20.0%1.8%HgPbS2－。。、、0、、5254。3.3。、、、。3.3。、。5%～8%15%～20%。3.3.1。NFＲOFOMD。NFNFＲO、。55NF。56“+NF”2～4NaCl97%。31“+MF+ＲO”MFＲO98%。32“TMF+DTＲO”11%800μS/cm。35“UF+NF+ＲO”ＲO1.7～2.3NaCl99%TDS370mg/LGB/T19923-2005。。57FO10。EDＲＲO。58“+ＲO+EDＲ+FO”ＲO、EDＲFO133.060g/L57.2%。59TDS15%0.3%。MD。UFMD6088%0.5m3/h。Wang61NFMD99.99%92.00%。24ＲO、ED、FOMD4FO=MD＞ED＞ＲOMD＞FO＞ＲO＞ED。ＲOFOMD、。Lee62MDFOFO。61。、。、、。3.3.2。MED、MVＲ、TVC。64。。、。92201913.4。、。、、。3.4。、、1。。2。。65“-UF-ＲO”。。11。66。67。68-71。、69。1026。MED、MVＲ、TVC。73。73MVＲ。“+ＲO+FO+TVC”FOＲO74。75“+NF+ＲO+MVＲ”27.28t。、NF762NaCl。。16“-TMF-NF--ＲO”。7778MVＲ1/6～1/7。2。、。。。431、。2。。3“+++03361”。2。37%1967。“++”79-81。2Table2Projectcasesofzeroliquiddischargeofdesulfurizationwastewaterinpowerplant/t·h－1ENEL50--TDS10mg/L。8222------9750TDS300g/LTDSCOD24.