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作者简介:魏晓光(1962~) 冶金化工工程师 1987年毕业于本钢工学院冶金化工专业A-A/O 魏晓光 杨子文 王 勇 (焦化厂) (中冶焦耐公司) :360t/a,,。:;;、、SimplyAnalyzingA-A/OBiologicalDenitrogenationTechnologyWEIXiaoguangYANGZiwenWANGYong(CokePlant)Abstract:Accordingtothefeaturesof36milliont/aCokingsewageinBXSTEELCokingPlant,thispaperdepictedcomparisonandchoiceofbiologicaldenitrogenationprocessflowparticularly,introducedthecirculatinganddebugginginstanceofthisitempresentlyandenvironmentalbenefitthatreceivedafterbringingintoeffect.Keywords:biologicaldenitrogenation;innercycle;aerobic;aoxic;arobic 、,:,,,;,;、(、)。,,170t/a360t/a。65m3/h130m3/h,70m3/h,,:→→→→→→→。(20061):: 0.566mg/L :0.033mg/LCODcr:360mg/L:132mg/LPH:8.1:18mg/L: 11mg/L,。,。1 生物脱氮废水处理工艺的比较、、、、、、,,。,、。,、、。,,1:图1 基本流程Fig.1 Basicflow ,,,。34 20064、,COD。COD13%~17%,,,COD250~400mg/l,,,8%~10%,,,COD40%,,,、、PH、DO,,,10mg/l,,,,。,,,。A/O、A/O-O、A-A/O。1.1 A/OA/O,、;COD,,。,2。图2 A-A/O内循环生物脱氮工艺流程Fig.2 A-A/Ointernalcyclebiologicaldenitrificationprocessflow 1992、,:CODcr900~1700mg/l、90mg/l、50mg/l、NH4—N300mg/l、80mg/l,A/OCODcr100mg/l、0.5mg/l、0.5mg/l、NH4—N15mg/l(,5mg/l),。1.2 A/O-OA/O-OA/O。NH+3NO-2NO-3,。A/O-ONH+3NO-2,,,,。NO-2,COD,。。3:图3 A/O-O内循环亚硝化生物脱氮工艺Fig.3 A/O-Ointernalcycleitrosationbiologicaldenitrificationprocessflow35 A-A/O ,,,。6/m3,CODcr100mg/L、NH3-N15mg/L、。1.3 A-A/OA-A/O,:①CODNH3-N,COD;②,,,。,A/O;③,。4:图4 A-A/O硝化生物脱氮工艺流程Fig.4 A-A/Onitrificationbiologicaldenitrificationprocessflow2 本钢焦化厂选择的原因(1):1000~1300mg/l:20~25mg/lCODcr:3800~5500g/l:100~200mg/lPH:6~9 :60~150mg/L:20~30mg/L SS:100~250mg/L,。,(200mg/L);CODcr:(5500g/L);(30mg/L)。:CODcr。A/O、A/O-O、A-A/O,A-A/OCODcr:,。(2)::Q≈180m3/h,Q=50m3/h,Q=70m3/h,Q=70~80m3/d,40m3/h,40~50m3/h。(3),。。。(4)A-A/O,A/O,CODcr,A-A/O,;。,。3 影响亚硝化污泥驯化和培养的主要因素3.1 、。CODcr、、PH,。3.2 ,。3.3 PH,PH,。4 生物脱氮系统现在实施的情况2006910,、、。36 20064。12。1 (1)Tab.1 Biologydenitrogenationtestdatareportforms(1seriesrunningdiscontinuously)PHNO-2NO-3CODcr7.07.240.664616.8917.012.260326287.044.77056447.6927.040.21047630.87.035.64040816.87.044.550.022098.4937.031.07047933.67.033.71044611.27.039.5602345.6947.033.9304125.67.038.49029711.27.032.7902.8957.035.286.1407.037.350.2917007.029.93033.6967.038.492.309307.031.6403735.67.032.2202965.6976.529.9302084.27.028.790431147.032.7901758.42 (2)Tab.2 Denitrogenatingtestdatareportforms(2seriesrunningcontinuously)CODcrCODcr91250628841690.281.2968022.454862917840.161.3778172.81885213667.20.251.1176595.29239152725560.511.3766356344324111000.352.2561178.4313102977840.290.4152178.49331373112560.510.4572939.22353233912830.880.1680978.431382627670.451.9357633.69431372896560.120.3470656297112290840.150.84146944.8407626301790.181.1339528953761428761560.101.2935278.4266319481060.160.5830167.23131226111680.101.6135778.4963911728631120.181.3540695.24381329741120.100.5542033.647041287950.090.5248161.6974541328911560.70.793727028292916950.160.3761533.620331076890.240.7140256(下转第42页)37 A-A/O。,,。APIRP5L3,60CSM。,0℃-80℃。15。图2 落锤撕裂试验过渡曲线APIRP5L,X60X7010℃85%。2,-40℃。2 结论,。API。、、。Ezz,,,6mm、8mm10mm。。、、。X7010μm。V,。-60℃(70%)10mm-70℃。刘岩红译自《MPT》(英)2005年6月第3期(上接第37页)5 结论(1)1(1),NO-2,NO-3,,。(2)2(2),,42 20064
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