白土强化活性污泥工艺处理煤气废水的研究张文启

白土强化活性污泥工艺处理煤气废水的研究张文启,马　军,张立秋,丘立平(哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090):,COD,;188.9～312.4mg/L,,20%,。:;;;:X703;TM424.22　:A　:0253-4320(2005)S1-0154-04EffectsofdiatomiteadditivesoncoalgasificationwastewatertreatmentZHANGWen-qi,MAJun,ZHANGLi-qiu,QIULi-ping(SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China)Abstract:Alaboratory-scaleactivatedsludgeprocesswithdiatomiteadditiveswasputforwardforthecoalgasificationwastewatertreatment.TheresultsindicatedthatthebiomassandtheefficiencyofCODandNH+4-Nremovalareincreasedcomparingwiththedataofthethree-stagesactivatedsludgeprocessofacertainplant.Anotherjartestwasconductedformeasuringdissolvedoxygenconsumptionratiointhemixingliquidwithdifferenttotalphenolsconcentration.Theresultsshowedthattheadditionofdiatomiteinthemixingliquidcouldenhancebacterialactivityobviouslyinthetotalphenolsconcentrationrangeof188.9～312.4mg/L.TheresultsofadsorptiontestofdiatomiteandPACinthewastewaterdemonstratedthatadsorptionofthephenolsanddissolvedoxygenwasthemainmechanismforenhancingthebacterialactivityandtheefficiencyofthewastewatertreatment.Keywords:diatomite;coalgasificationwastewater;bacterialactivity;dissolveoxygen　:2005-04-06　:(1966-),,,,,0431-5621752,[e-mail]。　　A/O(/)、A2/O(//)、,,、、CODNH+4-N。,[1-3],,,。,[4-5],(0.2～5um),,,。,、;、,,[6]。[7-8],[9]。,,。1　1.1　-,,、(1)。,201.7L。(133.5#),。、,18℃。(33.5#),,A0、B0、C0、D0、E0、F06,()2%、10%、20%、30%、50%·154·July2005现代化工25ModernChemicalIndustry20057DOI:10.16606/j.cnki.issn0253-4320.2005.s1.04070%,。1。2。1—;2—;3—-;4—;5—图1　白土-活性污泥系统工艺流程图1　pHCOD/mg·L-1/mg·L-1/mg·L-1(33.5#)7.256079203.1988.9A07.011484.0921.7A1(A0)7.071350.6120.4A2(A0)7.05108ND10.5B07.1165219.8101.5B1(B0)7.0963214.396.2C07.13154238.4188.9C1(C0)7.15151230.3176.5D07.15201370.6312.4D1(D0)7.16195158.4282.6E07.183123108.2501.2E1(E0)7.20306196.4471.3E2(E0)7.18288678.3397.5F07.214215131.5712.4F1(F0)7.234134118.4687.72　/g·cm-3/g·mL-1/m2·g-1/cm3·g-1/μm2.020.58330.8810～40SiO2/%Al2O3/%Fe2O3/%CaO/%MgO/%84.65.81.60.340.161.2　20L/d,33.5#,1∶2(),COD2000mg/L;(HRT)24h2h;100%,4%,25d;1000mg/L,800mg/d。50L,50mL30min,(MLVSS)130mg。()200mL200mg()。,,2mg/L,[10]。2mg/L。,18℃,15min,200mL200mg,,0.45μm,1。1.3　(MLSS),110℃2h,(MLVSS)700℃2h;CODCr、NH+4-N。YSI55,US。2　2.1　COD3,90t/h,COD1400mg/L;3HRT15、8、8h,HRT6h;412,,MLVSS1600mg/L,(SV)2%,MLVSS400mg/L,。3,34NH+4-NCOD16.6%51%。,,,COD2000mg/L,MLSSMLVSS3822mg/L2789mg/L。NH+4-NCOD·155·20057:,NH+4-NCOD38.59%75.98%,。2.2　。、,,,,[11],。,。2.2.1　微生物的初始活性特征及白土添加剂对细菌活性的影响。48h,,20%2600mg/L。,,0.019mgO2/gMLVSS·min,,。2.2.2　白土添加剂在不同酚浓度的煤气废水中对细菌活性的影响特征,2。,;、,,,,,,Haldane[12],,,,(),。2(a),A021.7mg/L,,1.36mgO2/gMLVSS·min。,,1.09、1.04mgO2/gMLVSS·min。1A0、A1A2,COD,,,,。2(b)B0B1。,,2.19mgO2/gMLVSS·min,。,,。188.9、312.4mg/L,2(c)2(d),,1.46、0.76mgO2/gMLVSS·min,B0,。,,1.85、0.92mgO2/gMLVSS·min,20%。(a)(b)(c)·156·现代化工25(d)(e)(f)图2　白土及活性炭添加剂对在不同COD和酚浓度废水中细菌活性的影响501.2712.4mg/L,2(e)2(f),,0.62、0.3mgO2/gMLVSS·min,。F0,,;E0,,0.69mgO2/gMLVSS·min,,,0.92mgO2/gMLVSS·min,。D1E2,,0.92mgO2/gMLVSS·min,,。3,,,,,,“”[13],。3　DO()/mg·L-1DO()/mg·L-1DO()/mg·L-1C02.842.381.46D01.621.30.81E01.220.890.80COD2000mg/L,50～100mg/L,300～500mg/L,;,,,,。3　,,NH+4-NCOD。188.9～312.4mg/L,,20%。。[1]HuttonDG,RobertaccioFL.Wastewatertreatment[P],US3904518,1975-05-18.[2]FlynnBP.Amodelforthepowderedactivatedcarbon-activatedsludgetreatmentsystem[A].in:Proc30thIndWasteConf[C].Indiana:Pur-dueUniversity,1975.233-252.[3]LankfordPW.[J].ToxicReductIndEffluents,1990,122(2):229-246.[4]VieiraMJ,MeloLF.[J].WatSciTech,1995,32(8):45-52.[5]OliviaPM.[J].WatEnvironRes,2002,74(2):235-241.[6]Al-GhoutiMA,KhraishehMAM,AllenSJ,etal.[J].EnvironmentManagement,2003,69(3):229-238.[7]AysegulPala,EnisToka.[J].WaterRes,2002,36(11):2920-2925.[8]ChoByung-Hoon,ChinoHiroyuki,TsujiHirokazu,etal.[J].Chemo-sphere,1997,35(7):1599-1611.[9]PollockJ.Treatmentofcontaminatedsoils[P].WO97/00129,1997-12-09.[10]WilenB-M,BalmerP.[J].WatRes,1999,33(2):391-400.[11]WilenB-M,KeidingK,NielsenPH.[J].WatRes,2004,38(18):3909-3919.[12]GoudarCT,GanjiSH,PujarBG,etal.[J].WatEnvironRes,2000,72(1):50-54.[13]MarquezMC,CostaC.[J].WatRes,1996,30(9):2079-2085.□·157·20057: