A2O与混凝沉淀法处理垃圾渗滤液研究赵宗升

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A2/O赵宗升1, 刘鸿亮2, 袁光钰1, 李炳伟2(1.清华大学环境科学与工程系,北京100084;2.中国环境科学研究院,北京100012)   : 采用厌氧—缺氧—好氧—混凝沉淀工艺处理垃圾填埋场渗滤液。当进水COD为2000mg/L左右时,好氧出水COD可降至900mg/L,混凝沉淀出水COD可降至80mg/L;当进水氨氮浓度为1300mg/L左右时,好氧出水氨氮10mg/L。生物处理系统对总氮的去除率较低,仅为20%~30%,因而提高总氮的去除率应是今后研究的方向之一。  : 垃圾渗滤液; A2/O; 混凝; 脱氮:X505  :A  :1000-4602(2001)11-0013-04StudyonA2/OandCoagulation/SedimentationProcessforTreatmentofLandfillLeachateZHAOZong-sheng1, LIUHong-liang2, YUANGuang-yu1, LIBing-wei2(1.DepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084,China;2.ChineseResearchAcademyofEnvironmentalSciences,Beijing100012,China)  Abstract: TheresultsshowthatA2/Oandcoagulation/sedimentationprocessisfeasibleforthetreatmentoflandfillleachate.WheninfluentCODisabout2000mg/L,CODfromaerobiceffluentcanbereducedto900mg/LandCODfromcoagulation/sedimentationeffluentreducedto80mg/L;wheninfluentNH4-Nconcentrationisabout1300mg/L,NH4-Nfromaerobiceffluentcanbe10mg/L.ThebiologicaltreatmentsystemhaslessremovalrateofTNwith20%~30%only.ThefuturetrendofstudyistoimprovetheremovalrateofTN.  Keywords: landfillleachate; A2/O; coagulation; nitrogenremoval  [1]。,,,,。,——+。,BOD,—,。1 试验装置与方法① ,4。② ,40L,2L;15L,40L,200mm。。1,1。·13·   2001Vol.17          CHINAWATER&WASTEWATER          No.111  pH8.0~8.5CODCr(mg/L)1600~3200BOD5(mg/L)500~1500SS(mg/L)300~400(mg/L)400~1600(mg/L)600~2100(mg/L)3600~9700(mg/L)5~251 ③ 2。2 (°C)(°C)(mg/L)3520~30252~32 结果与讨论2.1 、2~5。2 92—129、COD3 92—129、BOD4 92—129、5 92—129、TN  4。(91—916),BOD、,COD。(917—928),481mg/L1262mg/L,36L/d31L/d。,0.2kg/(m3·d)0.7kg/(m3·d),COD、、。,,。(929—1111),30L/d20L/d,,,。,pH,4.95,pH5.68。pH,,,,pH。(1112—1216)pH,pH7.74,,9.8mg/L,23%。3~6。·14·2001Vol.17                              No.113  (%)COD(mg/L)2348189161671869COD[kg/(m3·d)]1.681.63BOD(mg/L)7696919.228.996BOD[kg/(m3·d)]0.62(mg/L)481466661497[kg/(m3·d)]0.20(mg/L)63360549148323NO3-N(mg/L)3.44.4163260NO2-N(mg/L)1.23.73640SS(mg/L)307384743pH8.418.228.057.29(mg/L)39203819118835191 : 36L/d,65%,3859mg/L,168,ΔCOD/ΔTN=9.6。4  (%)COD(mg/L)30202914112286671COD[kg/(m3·d)]2.341.64BOD(mg/L)113610921353896BOD[kg/(m3·d)]0.62(mg/L)126212762452898[kg/(m3·d)]0.70(mg/L)168816381139112233NO-3-N(mg/L)18.82.5495647NO-2-N(mg/L)1.23.25138SS(mg/L)292803pH8.28.18.06.8(mg/L)2002142 : 31L/d,95.5%,6364mg/L,150,ΔCOD/ΔTN=3.96。5  (%)COD(mg/L)211217121071100752COD[kg/(m3·d)]1.050.62BOD(mg/L)530262665490BOD[kg/(m3·d)]0.09(mg/L)1367135242418686[kg/(m3·d)]0.42(mg/L)16931843154115478.6NO-3-N(mg/L)5.97.0562676NO-2-N(mg/L)0.50.9136172SS(mg/L)3625951615pH7.88.07.675.68(mg/L)7943832214244499 : 20L/d,36%,3945mg/L,91,ΔCOD/ΔTN=2.28。6  (%)COD(mg/L)19801643107189654COD[kg/(m3·d)]0.870.60BOD(mg/L)258177151594BOD[kg/(m3·d)]0.06(mg/L)13211290499.899[kg/(m3·d)]0.47(mg/L)168016251475128723NO-3-N(mg/L)606751NO-2-N(mg/L)99139SS(mg/L)409381845pH8.478.417.797.74(mg/L)80487951997108786 : 20L/d,33%,3144mg/L,105,ΔCOD/ΔTN=2.2。  :①,pH,、pH5,。pH,。②———,,。③,,。,。④,[2]。2.2 ,BOD、,COD,。,。① pHAl2(SO4)316g/L1mL,pH7。7 pHpH34567891011COD(mg/L)816758397535582490352371402 : COD847mg/L。·15·2001Vol.17                              No.11  ,pH=5pH=9COD,pH=9。160g/L、1mL,pH8。8 pHpH34567891011COD(mg/L)57853888343314351431581416 : COD653mg/L。  ,pH=5COD(88mg/L),。② pH=5,9。9 (mL)0.250.51.02.03.0COD(mg/L)24514911498.674.6 : COD597mg/L。  ,COD,80mg/L。pH=9,10。10 (mL)0.250.51.02.03.04.05.0COD(mg/L)440375278272238264291 : COD572mg/L。  3mL,。3 结论① COD,COD1980mg/L80mg/L,96%。COD800mg/L,54%。② ,1321mg/L10mg/L,99%。③ 20%~30%,。④ pH,pH5,。⑤ ,pH=5,1L6mL。:[1] ,,,.[J].,2000,16(6):20-23.[2] ,,,.[J].,2001,17(5):24-28.:(1959- ), , , , , 。:(010)84915277:2001-06-14··昌吉市第二污水处理厂工程  工程概况:该工程处理规模为10×104m3/d,一期建设规模为5×104m3/d,总投资为1.5亿元,工程总占地面积为159840m2。处理工艺:拟选用A/O生物处理法即厌氧—好氧工艺。设计单位:北京市政设计研究总院。该工程将于2001年10月投入运行。(  )·16·2001Vol.17                              No.11

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