采用膜生物反应器对石化废水进行处理,在300 L/h,150 L/h及75 L/h三个曝气量下,研究跨膜压差及单周期跨膜压差变化率(K)的变化特征.试验结果表明:跨膜压差呈指数型曲线变化,跨膜压差与运行时间的关系式为:△P=Aetx.不同曝气量下,单周期跨膜压差变化率K的变化范围为0～2.5 Pa/s,曝气量的改变并不能改变K值增大的趋势.但是,曝气量对K值变化特征有影响,在提高曝气量的条件下,K上升的速率较缓.可依据单周期跨膜压差变化率K的变化趋势,对膜生物反应器的曝气进行过程控制,并同步减缓膜污染的进程.
参考文献
| [1] | A. Fenu;J. Roels;T. Wambecq .Energy audit of a full scale MBR system[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2010(1/3):121-128. |
| [2] | Krzeminski, P.;Van Der Graaf, J.H.J.M.;Van Lier, J.B. .Specific energy consumption of membrane bioreactor (MBR) for sewage treatment[J].Water Science and Technology,2012(2):380-392. |
| [3] | Delgado S;Villarroel R;Gonzalez E .Effect of the shear intensity on fouling in submerged membrane bioreactor for wastewater treatment[J].Journal of Membrane Science,2008(1/2):173-181. |
| [4] | Ueda T;Hata K;Kikuoka Y et al.Effect of aeration on suction pressure in a submerged membrane bioreactor[J].Water Research,1997,31(03):489-494. |
| [5] | Celine Huyskens;Etienne Brauns;Erwin Van Hoof;Ludo Diels;Heleen De Wever .Validation of a supervisory control system for energy savings in membrane bioreactors[J].Water research: A journal of the international water association,2011(3):1443-1453. |
| [6] | Ferrero, G.;Monclús, H.;Buttiglieri, G.;Gabarron, S.;Comas, J.;Rodríguez-Roda, I. .Development of a control algorithm for air-scour reduction in membrane bioreactors for wastewater treatment[J].Journal of Chemical Technology & Biotechnology,2011(6):784-789. |
| [7] | Ferrero G;Monclús H;Buttiglieri G et al.Automatic control system for energy optimization in membrane bioreactors[J].DESALINATION,2010,268:276-280. |
| [8] | Ginzburg B F;Yacoub F;Cote P L et al.Process control for an immersed membrane system[P].United States,A1,0042312,2011-2-24. |
| [9] | H. Monclus;G. Ferrero;G. Buttiglieri .Online monitoring of membrane fouling in submerged MBRs[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2011(1/3):414-419. |
| [10] | Huyskens C;Brauns E;Hoof E V et al.A new method for the evaluation of the reversible and irreversible fouling propensity of MBR mixed liquor[J].Journal of Membrane Science,2008,323:185-192. |
| [11] | Z. Geng;E.R. Hall;P.R. Bérubé .Membrane fouling mechanisms of a membrane enhanced biological phosphorus removal process[J].Journal of Membrane Science,2007(1/2):93-101. |
| [12] | Howell JA;Chua HC;Arnot TC .In situ manipulation of critical flux in a submerged membrane bioreactor using variable aeration rates, and effects of membrane history[J].Journal of Membrane Science,2004(1/2):13-19. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%