Vol.36 No.12 201063 陈 莉 王白杨 龚小明 王会平 王 娜(, 330031) 某化工厂以微生物法生产丙烯酰胺,生产废水中含有大量的有机物及氨氮,原有废水处理系统不能满足其废水排放标准。通过对存在问题进行分析和研究,对原有工艺进行改进,采用UASB—A/O—BIOFOR组合工艺处理该厂含高浓度氨氮的有机废水,出水各项指标均达到《污水综合排放标准》(GB8978—1996)二级标准。 丙烯酰胺生产废水 UASB A/O BIOFORAcasestudyonacrylamideproductionwastewatertreatmentChenLi,WangBaiyang,GongXiaoming,WangHuiping,WangNa(CollegeofEnvironmentalandChemicalEngineering,NanchangUniversity,Nanchang330031,China)Abstract:Microorganismwereusedtoproduceacrylamide(AM)inachemicalplant,sotheconcentrationsoforganicmatterandammonianitrogeninproductionwastewaterwerehigh,whiletheinfluentfromthepreviouswastewatertreatmentsystemcouldn'tmeetthewastewaterdischargestandards.Bystudyingandanalyzingtheexistingproblems,thepreviousprocesswasupgraded.WhentheUASBA/OBIOFORcombinedprocesswasemployed,everyindexofinfluentsatisfiedthesecondstandardsof“Integratedwastewaterdischargestandard”(GB8978—1996).Keywords:Acrylamideproductionwastewater;UASB;A/O;BIOFOR1 ,,,。,,,。(AM),。,,,,。。1。1 /m3/dCODCr/mg/LpHNH3—N/mg/LSS/mg/L8003800~46003~12390~520100~1501506~925150 ,,,,CODCrNH3—N。,,UASB—A/O—BIOFOR,CODCr,。A/OBIOFOR,。1。,。pHPLCpH6.5~8.5。DOI:10.13789/j.cnki.wwe1964.2010.12.00464 Vol.36 No.12 20101 SS。3,,UASB,,UASB,,,,。A/O。,,OA,A。,O,OA,2∶1。PAC,,BIOFOR,BIOFORSS100mg/L。BIOFORCODCrNH3—N,。2。2 2.1 UASB,UASB。UASB,200m3,1kgCODCr/(m3·d),pH6.5~7.5。,[1]。1UASB,,。UASB,,,,,,CODCr20%50%。2 ,1,,18.4m×6m×3.5m,HRT11.58h ,1,,1.9×4m×5m,HRT1.14hUASB ,1,,,11m×13m,1.8~2.4kgCODCr/(m3·d),HRT33.75hA ,1,,3.8m×8m×5m,HRT4.56h,DO0.2~0.8mg/LO ,,O;2,,1(3.8m×2m+1.95×24m)×5m,(1.95m×16m+5.75m×8m)×5m,0.6kgNH3—N/(m3·d),HRT19.74h,DO3~5mg/L ,1,,3.8m×12m×5m,HRT6.84h ,1,,3.8m×2m×5m,HRT1.14hBIOFOR ,4,,3m×9m,HRT1.9h,50% ,1,,3m×6m×3.5m,0.5kgCODCr/(m3·d)。3,UASB,CODCr85%,。,,,,,,CODCr85%,,,,。2.2 A/OA/O,,50m3。,1/3,,pH6.5~7.5,DO2~5mg/L,2d,5d,SV305%,,20d,SV3020%, Vol.36 No.12 201065 ,※※,,A/O[2]。OA,。A,。ADO0.2~0.8mg/L,ODO3~5mg/L,200%,100%。2.3 BIOFORBIOFOR,BIOFOR,pH6.5~7.5,50%,2d,。7d,A/O,,3∶1~5∶1。25d,BIOFOR,CODCr60%,。BIOFOR,,,。,BIOFOR。,[3]。,BIOFORSS,8d,6~8L/(s·m2),3~5L/(s·m2),6min。2.4 3,,,。CODCr、NH3—N、pH[4]。1,3。SS(150mg/L),BIOFOR,280mg/L,SS。3,,,,。A/O,OA,,92.2%。BIOFORCODCrNH3—N,。96%,94%,《》(GB8978—1996)。3 208。30,160,19。,UASBBIOFOR,,。1.83/m3,1/m3、0.33/m3、0.5/m3。4 (1)UASB—A/O—BIOFOR,CODCrNH3—N97%95%,。(2),OA,ODO3~5mg/L,ADO0.2~0.8mg/L,200%,100%,A/O92.2%。(3)BIOFOR3~5,COD,。3 CODCr/mg/LUASBA/OBIOFOR/%NH3—N/mg/LUASBA/OBIOFOR%pH0601399661827910797.32389495481895.377.2~8.77.2~8.30606436076631313296.97421503552494.306.3~8.57.3~8.1061138756792888397.85417536421596.45.6~8.37.1~7.8061641038802997598.17446527651995.746.7~7.87.4~7.90621427893630610297.61514581692395.536.8~7.97.5~8.106264523113842514596.79408479411596.326.5~8.46.9~7.80630428572028711997.22448540511995.767.3~8.67.6~8.266 Vol.36 No.12 2010钟华文 林培喜 程丽华(, 525011) 某炼油厂废水采用隔油—浮选—A/O工艺,处理规模1920m3/d,但出水不能达标。经采用新型的内循环曝气生物滤池(BAF)和微滤组合工艺深度处理后,出水CODCr、石油类、氨氮、硫化物和挥发酚等炼油废水的主要指标分别小于50mg/L、2mg/L、5mg/L、0.1mg/L和0.5mg/L,可以作为厂区循环冷却水的补充水。 炼油废水 中水回用 内循环 曝气生物滤池 、,、、、、COD[1,2]。“”[3,4],,,。1920m3/d,,1,,。1 ——A/O,。CODCr、SS50%,、100%。,CODCr,。2 2.1 (2008A030202007)。 、,,,。BAF[5],BAF。 BAF,。,BAF,1。BAF,,,,。,,;,。()。、,,。参考文献1 ,,,./AO,2004,20(7):77~792 .ABR1++ABR2+A/O:[].:,20103 ,..,2003,24(5):86~914 ..:,1989 ☆:3300969263()7012:13767964119E-mail:lgbaihe@126.com:20100617:20100928