您好,欢迎访问三七文档
当前位置:首页 > 商业/管理/HR > 质量控制/管理 > 海水冲厕污水的短程硝化试验研究孙晓杰
孙晓杰1, 徐迪民1, 于德爽2(1.同济大学环境科学与工程学院,上海200092;2.青岛大学化学化工与环境学院,山东青岛266071) : 采用SBR工艺处理模拟海水冲厕污水,研究了海水盐度、pH值、温度、氨氮负荷对模拟海水冲厕污水短程硝化的影响。结果表明,当城市生活污水中含有30%的海水时能够导致亚硝酸盐的积累从而实现短程硝化反应,亚硝酸盐的积累率可达94%,pH值和温度分别从6.5~7.5和25℃提高到8.3和28℃时,含30%海水的生活污水的亚硝酸盐积累率从65%提高到93%;原水中氨氮浓度越高则亚硝酸盐的积累量越大,在试验给定的条件下,进水氨氮浓度分别为31.1、55.43、98.48和135.07mg/L时,一个硝化周期结束时的亚硝态氮浓度分别为6、18、24和33.5mg/L。 : 海水冲厕污水; 海水盐度; 短程硝化:X703.1 :A :1000-4602(2007)03-0040-05StudyonShortcutNitrificationofSeawaterToilet-flushingSewageSUNXiao-jie1, XUDi-min1, YUDe-shuang2(1.SchoolofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092,China;2.SchoolofChemicalEngineeringandEnvironment,QingdaoUniversity,Qingdao266071,China) Abstract: Thebench-scalesequencingbatchreactor(SBR)processwasusedtotreatseawatertoi-let-flushingsewage.Theinfluenceofseawatersalinity,pH,temperatureandammonianitrogenloadingontheshortcutnitrificationofsimulatedsewagewasstudied.Theresultsshowthatnitriteaccumulationisaccomplishedinshortcutnitrificationofmunicipaldomesticwastewatercontaining30%ofseawater,andthenitriteaccumulationratereaches94%.WhenthepHvalueandtemperatureincreasefrom6.5-7.5and25℃to8.3and28℃respectively,thenitriteaccumulationrateinthewastewaterof30%seawaterincreasesfrom65%to93%.Furthermore,higherconcentrationsofammonianitrogenintherawwaterledtoenhancedcapacityofnitriteaccumulation.Underthegiventestconditions,theNO-2-Nconcen-trationsintheeffluentafteroneoperatingperiodare6mg/L,18mg/L,24mg/Land33.5mg/LwhentheNH+4-Nconcentrationsintheinfluentare31.1mg/L,55.43mg/L,98.48mg/Land135.07mg/L,respectively. Keywords: seawatertoilet-flushingsewage; seawatersalinity; shortcutnitrification 30%,。2050,“”,[1、2]。,,;40第23卷 第3期2007年2月 中国给水排水CHINAWATERWASTEWATER Vo.l23No.3Feb.2007,;,50%。、、、。,,NO-2-N[3、4]。,,,。SBR。1 试验部分1.1 1。1 SBRFig.1 Experimentalset-upofSBRprocess30cm,70cm,42L。,,。,;,。,。1.2 ,SBR、、,2000~3000mg/L。,COD300~400mg/L,NH3-N40~70mg/L。25~28℃,pH7.5~8.3,2~3mg/L。30%,,,,30%。,7h,、、2,1d。1.3 NH3-N:;NO-3-N:;NO-2-N:N-(1-)-;pH:pH211;DO、:YSIMODEL50B。2 结果与讨论2.1 SBR1,256.7mg/L,、。2 Fig.2 Variationofammonia,nitriteandnitrateduringonenitrificationcycleatseawaterpercentageof02,,,。,270min,3.55mg/L,93.74%。SBR230%,365.39mg/L,、、。3 30%Fig.3 Variationofammonia,nitriteandnitrateduringonenitrificationcycleatseawaterpercentageof30%41孙晓杰,等:海水冲厕污水的短程硝化试验研究第23卷 第3期3,,18.25mg/L,,94%,。300min,9.44mg/L,85%。,SBR2。,,180min,,;300min,,,24.4%,。,,,[5]。,SBR230%,,SBR2,,3,。,,14mg/L,9mg/L;,1mg/L,5mg/L。,,,64%,94%。,。,。19000mg/L,10000mg/L。,SBR1SBR3,5700mg/L(30%)。,,90min,,,,;,,69%,(2%),;,5700mg/L30%,,。,,1[6]。1 Tab.1 Biologicalcharacteristicofnitritebacteriaandnitrobacteria/h8~3612~59/h-10.04~0.080.02~0.060.04~0.130.02~0.07/(mgL-1)0.6~3.60.3~1.7 1,、,。,。,,,,,。2.2 pHpH,30%、pH6.5~7.58.3、2528℃,。SBR1,4pH8.3、28℃。42第23卷 第3期 中国给水排水 28℃、pH8.330%Fig.4 Variationofammonia,nitriteandnitrateatpH=8.3andtemperatureof28℃insewagecontaining30%seawater 4,1,11%,240%,386%,83%~96%;93%,88%。SBR3,30%,pH6.5~7.5、25℃,5。5 25℃、pH6.5~7.530%Fig.5 Variationofammonia,nitriteandnitrateattemperatureof25℃andpH=6.5to7.5insewagecontaining30%seawater5,350%,65%,。,28℃、pH8.3,pH。pH。,pH,。,,,,,。(),,35℃,35~42℃。5~30℃,10℃[6]。,28℃、pH8.3。2.3 30%、28℃、DO2mg/L、MLSS2000mg/L、pH7.5,31.1、55.43、98.48、135.07mg/L,,6。6 Fig.6 VariationofNO-2-NatdifferentinfluentNH+4-N6,31.1、55.43、98.48135.07mg/L6、18、2433.5mg/L,。:pH,,,,,。3 结论① ,。30%94%。② 30%64%,(94%),(下转第52页)43孙晓杰,等:海水冲厕污水的短程硝化试验研究第23卷 第3期COD10000~11000mg/L,COD72.4%591.0%,COD83%~93%(87.28%),COD1000~1500mg/L。,COD,。3 结论① ,,C/NCOD90%,、。② ,,、C/N30%。,,;,。 ③ ,,VFApH。,C/N,30%~35%,pH6.7~7.0,。:[1] ,,,.[J].,2003,24(4):89-93.[2]ShinHS,HanSK,SongYC,etal.PerformanceofUASBreactortreatingleachatefromacidogenicfermevterinthetwo-phaseanaerobicdigestionoffoodwastewater[J].WaterRes,2001,35(14):3441-3447.:(022)23502756E-mail:hongbingyu1130@sina.com:2006-08-20(上接第43页)30%,,。,。③ ,5700mg/L69%,,30%,,。④ 30%pH6.5~7.5、25℃65%;pH8.3、28℃93%,pH。⑤ ,。:[1] ,.[J].,2000,19(1):73-77.[2] ,.[J].,2000,16(11):49-50.[3] ,.—[J].,2000,16(2):29-31.[4] ,,.[J].,2002,18(6):29-31.[5] ,.[J].,2000,32(1):1-3.[6] ,.[M].:,1998.:(1974- ), , , , 。:(021)65986708:2006-08-2752第23卷 第3期 中国给水排水
本文标题:海水冲厕污水的短程硝化试验研究孙晓杰
链接地址:https://www.777doc.com/doc-6568113 .html