吹脱法去除城市垃圾填埋场渗滤液中的氨氮吴方同

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 吴方同 苏秋霞 孟 了 李 武 金同轨   采用化工、冶金行业较常用的规整填料塔吹脱去除垃圾渗滤液中的氨氮,对于氨氮浓度高达1500~2500mg/L的渗滤液取得较好的处理效果。在温度为25℃,pH值为10.5~11.0,气液比为2900~3600时氨吹脱效率达95%以上。 渗滤液 氨吹脱 气液比 水力负荷0 ,,,。2000mg/L。,NH3-N,TN,、。、,:、()、、、。,、。,,、、、、,。,,,,,;,,,。。。pH9.1、5h,67.8%[1]。pH11、22.5℃,666,5h,66.7%~82.5%[2]。。,(2000~3000mg/L),C/N,。,,(60%)、(22%)、(18%)[4];、;,SO2,。,,。1 1.1 ,,1。1 COD/mg/L6006.0~17690.8NH3-N/mg/L1946.4~2347.7Ca2+/mg/L76.05~300.0Mg2+/mg/L32.5~94.6/mol/L,HCO-30.0845~0.1937pH7.77~8.01.2 pH,NaOHpH。pH,,。pH7.0()。20    Vol.27 No.6 2001DOI:10.13789/j.cnki.wwe1964.2001.06.0061 。1。1.3 ,。,。、,,,,。300mm,10m,3m,5.2m。≥300m3/h,≥0.001MPa。1.4 COD:;NH3-N:;Ca2+,Mg2+:;:;:YJ-02。2 :、、、、()、pH、、()、、、。、pH、。2.1pH10.0~11.0(),。pH7.7~8.0,HCO-3,[HCO-3]1/2([Ca2+]+[Mg2+])(Ca2+,Mg2+),CaCO3Mg(OH)2,。[HCO-3]1/2([Ca2+]+[Mg2+]),,。CaCO3Mg(OH)2(25℃CaCO312.0mg/L,Mg(OH)213.5mg/L,),,CaCO3,。,Mg(OH)2,Mg(OH)2,[3]。pHCa2+16.2mg/L,Mg2+23.8mg/L(pH9.97,28℃)。pH、2。2,pH。15g/L,pH。pH10.0~11.3,9.25g/L~12.0g/L。。2 pH、pH10.0([HCO-3]1/2([Ca2+]+[Mg2+])),pH,Ca2+;pH10.0([HCO-3]1/2([Ca2+]+[Mg2+])),pH,Ca2+。pH,Mg2+。16.2~52.8mg/L,14.4~67.5mg/L,,:、(,,,, Vol.27 No.6 200121   );pH,[HCO-3]1/2([Ca2+]+[Mg2+])。2.2 pH10.7~11.15,24~27℃,22~25℃,,3。3 ,,,。4000,。pH=10.8,24℃,22℃,3100~3900,95%。2.3 pH24~27℃,22~25℃,3756.72828.3,pH,4。4 pH,3756.7,pH,。pH9.0~10.0,。pH10.5,。pH,。2828.3,pH,。pH11.3,。pH,。2828.3,3756.7,pH0.5~1.0,pH12.0,。2.4 、,。,,,。,,。28.5℃,29.0℃,26℃。,22℃,1,14.1℃。16~33℃。,。,。pH11.0,3600~400090%。2.5 。,,。,,[4]。,。:19℃,22℃,pH10.1(NaOHpH),2347.7mg/L,(),2。:24℃,27℃,pH10.5(pH),3851.0mg/L,(),3。2.34m3/(m2·h),3.51m3/(m2·h)。、,pH10.5~10.8,3000,4.09~4.68m3/(m2·h),90%。2.6 ,BOD/COD,。,22    Vol.27 No.6 20012         /m3/(m2·h)/m3/hNH3-N/mg/L/%11.17615.6912313.848.297.921.75615.698209.292.696.132.34584.905849.0134.594.343.51554.123694.1337.685.654.68523.332616.7361.784.665.85369.411477.7818.565.13.22543.865693.4298.987.33         /m3/(m2·h)/m3/hNH3-N/mg/L/%11.75615.698209.211.699.722.92569.514556.158.798.534.09538.733078.4127.596.745.26492.552189.1257.693.33.51554.124508.2113.997.1,,。,,,,4。4 1234/mg/L2723.33851.04457.14987.0/mg/L108.6127.5101.0166.7/℃ 26.0 27.0 27.5 29.0/℃ 21.0 24.0 25.0 31.0pH 10.60 10.50 10.90 11.15/m3/(m2·h) 4.09 4.09 4.09 4.093078.43078.42902.52902.5/% 96.0 96.7 97.7 96.7  ,5000mg/L,(95%)。。2.7 4.09m3/(m2·h),5 3078.4,pH10.50~11.15,26~29℃22~25℃,5。5,,。,,。2.8 pHpH8.3~10.8(pH9.5~11.6),pH7.0。NaOHpH,pH,。NaOHpH,pH0.4~0.6;pH,pH0.85~1.7。98%pH。NaOHpH,H2SO43.2L/m3(0.19mol/L,pH9.97,pH9.7,pH7.09);pH,H2SO40.1~0.2L/m3(0.17~0.19mol/L,pH9.7~10.8,pH8.7~9.7,pH6.8~7.2)。,pHHCO-3CaCO3([HCO-3]1/2([Ca2+]+[Mg2+]),NaOHpH,HCO-3CaCO3,HCO3-CO2-3。。pH。 Vol.27 No.6 200123   3 (1)pH。,。,pH,,CaCO3Mg(OH)2,、、SS、COD、、、。Na2CO3。(2)NaOHpH,,SO2-4,pH,SO2-4H2S,。pH,,,。NaOH8.4~10.0kg/m3,。pH10.83000,,,。(3),,,。pH。(4),,。。参考文献1 ,,,.,,1996,22(5):13~142 ,..,1999,12(2):67~703 ,..:,19924 ,..:,1998:71005 :2000-9-27储 清   对深圳市排水现状存在的问题进行分析,概要地论述了深圳市排水规划的原则、标准及解决水淹问题的措施。 雨水 排放 规划 设计 深圳市1 20,、、、。;、,。,,,:(1),,:,5、10、20(4.36m,5.19m,5.48m),,50,。,。(2),,,、,;24    Vol.27 No.6 2001WATER&WASTEWATERENGINEERINGVol.27No.6June2001ABSTRACTSExperiencesonDesignandConstructionoftheJiuxiWaterworksinHangzhouHongJueminetal(1………………………)Abstract:TheJiuxiWaterworksinHangzhouwithtotaldesigncapacityof600thousandcubicmetersperdayhasbeenconstructedinthreestages.Thelaststagewithcapacityof300thousandcubicmetersperdaywasinvestedbytheloanofWorldBankandcalledforbidofinternationalmanipulations.ThiswaterworkshasbeenputintooperationsinceJune2000.Outputwaterwithaverageturbidityof0.3NTUandmostlylessthan0.1NTUisobtainedwhich,meetstherequirementofthefirstclasswaterworksguidedbytheTechnicalProgressPlanfor2000issuedbytheMinistryofConstruction.Inthispaper,thewatersource,waterpurificationprocess,powersupplyandautomationofthisprojectaredescribedandtheexperiencesondesignandconstructionarealsopresented.EconomicAnalysisandEvaluationofMBRWastewaterTreatmentandReuseZhangJunetal(9…………………………)Abstract:MembraneBioreactor(MBR),ajointedtechnologyofbiologicalandmembraneprocessisanadvancedwastewatertreatmentfacilitywithhigheffectiveness.Inthispaper,economicanalysisandtechnicalcomparisononapplicationsofMBRprocessaredone,forthesethetreatmentofurbanwastewaterandhighconcentrateddomesticwastewaterandforwastewatercirculatingandreuse(socalledintermediatewatersystem)areincluded.Theanalysishasindicatedthatsucceedingtheprice-reducingofmembranematerials,MBRwillbemorecompetitivetothetraditionalwastewatertreatmentprocesses.HydraulicSandSluicinginLateralCanalattheDownstreamofXiguWaterworksinLanzhouLiJiulin(12………………)Abstract:ThewaterintakeofXiguWaterworksissituatedinadownstreamdivertinglateralcanalfromYellowRiver.AlongwiththeexpansionofthewatersupplyinLanzhou,thedesigneddiversionflowofthelateralcanalhavetobeexpanded,consequentlydeteriorationontherecentlypoorperforminghydraulicsandsluicinginthelateralcanalwillbeevenmore.Basedontheoriginallydesigneddata,theerosionconditionsoflateralcanalareevaluatedwiththetheoryofhydraulics.Itisfoundthatthelateralcanalitselfhastheabilityforhydraulicerosion.Thereasonoflateralcanalero-sionwasanalyzedinaccor

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