酵母菌生物膜-水解酸化-BAF组合工艺处理高浓度三元驱废水
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摘要
采用酵母菌生物膜-水解酸化-BAF生物组合工艺处理油田高浓度三元驱废水。实验结果表明:酵母菌生物膜具有降解污染物和调节水质的双重作用,可保障后续生物处理工艺的稳定运行。酵母菌生物膜、水解酸化及二级BAF的最佳HRT分别为18,12,36 h。工艺连续运行25 d,生物组合工艺对废水黏度、HPAM及COD去除率分别为80%、40%和69%。处理后出水ρ(石油类)<1 mg/L,ρ(SS)<5 mg/L,中位粒径<0.3μm,出水水质可达SY/T 5329—2012《碎屑岩油藏注水水质推荐指标及分析方法》回注标准。
Combined process of yeast biofilm-hydrolysis acidification-biological aerated filter was applied to treat high concentration of ASP flooding wastewater from oilfield. The results showed that the yeast biofilm could degrade the pollutants and adjust the influent quality,which guarantee the stable operation of the subsequent biological treatment. The optimal hydraulic retention times( HRT) of the yeast biofilm tank,hydrolysis acidification tank and BAF were 18,12,36 h,respectively. With continuous running for 25 d,the removal efficiency of the combined process on viscosity,HPAM and COD reached 80%,40% and 69%,respectively. The combined process could enable the concentration of crude oil less than 1 mg/L,the concentration of SS less than 5 mg/L and median particle size less than 0. 3 μm. Effluent quality meets with the"Water Quality Standard and Practice for Analysis of Oilfield Injecting Water in Clastic Reservoirs"( SY/T 5329—2012).
Combined process of yeast biofilm-hydrolysis acidification-biological aerated filter was applied to treat high concentration of ASP flooding wastewater from oilfield. The results showed that the yeast biofilm could degrade the pollutants and adjust the influent quality,which guarantee the stable operation of the subsequent biological treatment. The optimal hydraulic retention times( HRT) of the yeast biofilm tank,hydrolysis acidification tank and BAF were 18,12,36 h,respectively. With continuous running for 25 d,the removal efficiency of the combined process on viscosity,HPAM and COD reached 80%,40% and 69%,respectively. The combined process could enable the concentration of crude oil less than 1 mg/L,the concentration of SS less than 5 mg/L and median particle size less than 0. 3 μm. Effluent quality meets with the"Water Quality Standard and Practice for Analysis of Oilfield Injecting Water in Clastic Reservoirs"( SY/T 5329—2012).
引文
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[11]国家环境保护总局.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002.
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[13]Guerrer L,Omil F,MeAndez R,et al.Anaerobic hydrolysis and acidogenesis of wastewaters from food industries with high content of organic solids and protein[J].Water Research,1999,33(15):3281-3290.
[14]桑国良,包木太.厌氧/好氧生物过程处理高浓度HPAM污水的效果评价[J].广东化工,2015,42(10):234-237.
[15]Rochelle W,Tyl Marvin A,Friedman.Effects of acrylamide on rodent reproductive performance[J].Reprod Toxicol,2003,17(17):1-13.
[16]Zhu H,Chen J H.Study of hydrolysis and acidification process to minimize excess biomass production[J].Hazard Mater,2005,B127(1/2/3):221-227.
[2]胡菲菲,李庆,靖波,等.海上含聚油泥处理后泥水的回注[J].化工环保,2015,35(4):381-385.
[3]Yi X S,Yu S L.Hydrodynamics behaviour of oil field wastewater advanced treatment by ultrafiltration process[J].Desalination,2012,305(1):12-16.
[4]Yan H Y,Xiao M.Remediation of oilfield wastewater produced from alkaline/surfactant/polymer flooding by using a combination of coagulation and bioaugmentation[J].Petroleum Science and Technology,2014,32(13):1521-1528.
[5]Zhang bing,Yu Shuili,Zhu Youbing,et al.Application of a polytetrafluoroethylene(PTFE)flat membrane for the treatment of pre-treated ASP flooding produced water in a Daqing oilfield[J].RSC Advances,2016,6(67):62411-62419.
[6]Kiai H,García-Payo M C,Hafidi A,et al.Application of membrane distillation technology in the treatment of table olive wastewaters for phenolic compounds concentration and high quality water production[J].Chemical Engineering&Processing,2014,86:153-161.
[7]翟磊,王秀君,靖波,等.不同类型清水剂处理油田含聚污水的效果对比[J].化工环保,2016,36(2):124-130.
[8]Le Thi Nhi Cong,Cung Thi Ngoc Mai.Application of a biofilm formed by a mixture of yeasts isolated in Vietnam to degrade aromatic hydrocarbon polluted wastewater collected from petroleum storage[J].Water Science and Technology,2014,70(2):329-336.
[9]高芳,刘东方.混凝-酵母菌生物膜联合工艺处理三元驱采油废水[J].环境工程学报,2015,9(8):3871-3877.
[10]刘岩,刘东方.酵母菌-水解酸化-MBR工艺处理三元驱采出水的研究[J].工业水处理,2015,35(4):41-44.
[11]国家环境保护总局.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002.
[12]Lu Jianhang,Wu Laosheng.Spectrophotometric determination of substrate-borne polyacrylamide[J].Journal of Agricultural&Food Chemistry,2002,50(18):5038-41.
[13]Guerrer L,Omil F,MeAndez R,et al.Anaerobic hydrolysis and acidogenesis of wastewaters from food industries with high content of organic solids and protein[J].Water Research,1999,33(15):3281-3290.
[14]桑国良,包木太.厌氧/好氧生物过程处理高浓度HPAM污水的效果评价[J].广东化工,2015,42(10):234-237.
[15]Rochelle W,Tyl Marvin A,Friedman.Effects of acrylamide on rodent reproductive performance[J].Reprod Toxicol,2003,17(17):1-13.
[16]Zhu H,Chen J H.Study of hydrolysis and acidification process to minimize excess biomass production[J].Hazard Mater,2005,B127(1/2/3):221-227.