Evaluation of Effective Parameters in Organic Matters Removal Efficiency of Anaerobic Baffled Reactor Employing Electrolysis Process

Subject Areas : Environment Pullotion (water and wastewater)

Gagik Badalians Gholikandi ¹ ( Associate Professor, Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, Iran *(Corresponding Author) )
Behnam Inanloo Beklar ² ( MSc, Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, Iran )
Maryam Amouamouha ³ ( PhD, Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, Iran )

Received: 2017-10-29 Accepted : 2018-01-01 Published : 2020-06-21

Keywords: Electrolysis Process, Anaerobic Baffled Reactor, Effective Parameters, COD Removal Efficiency, Wastewater treatment,

Abstract :

Background and Objective: Following the results of the electrolysis process application to upgrade the anaerobic baffled reactor for treating wastewater, the present study was conducted to evaluate the EABR performance efficiency, considering hydraulic retention time (HRT), current density and organic loading.   Methods: In this study, a semi-industrial pilot of ABR with total volume of 72 L was studied before and after integration with an electrolysis system. The performance of the reactor was evaluated in terms of COD removal and bacterial adaption time. Findings: The findings revealed that a HRT reduction from 45 to 38 and 29 hours results in a decrease of COD removal efficiency from 77.6 to 74.9 and 72.2 % respectively. Also, a current density reduction from 3 to 2, 1, and 0.5 Mill ampere/cm2 results in a decreasing COD removal efficiency from 77.6 to 73.5, 71.2, and 70 % respectively. Moreover, an increasing organic loading from 700 to 2400 mg/L enhanced the COD removal efficiency from 77.6 to 90.2 %. Result and Discussion: The results showed that by increasing organic loading from 700 to 1000, 1500, 2000, and 2400 mg/L the necessary HRT for achieving operation stability increases from 3 to 8 days, which is less than in conventional ABR. Therefore, employing electrolysis process is a sustainable method for improving ABR performance efficiency. 

References:

1. Metcalf & Eddy, Tchobanoglous, G., Stensel, H.D., Tsuchihashi, R., Burton, F.L. 2014. Wastewater engineering treatment and reuse. 5^th edition. New York: McGraw-Hill Education.


2. Lansing, S., Maile-Moskowitz, A., Eaton, A., 2017. Waste treatment and energy production from small-scale wastewater digesters. Bioresource Technology, Vol. 245, pp. 801-809.


3. Bodkhe, S.Y., 2009. A modified anaerobic baffled reactor for municipal wastewater treatment. Journal of Environmental Management, Vol. 90, pp. 2488-2493.


4. Myint, M., Nirmalakhandan, N., Speece, R.E., 2007. Anaerobic fermentation of cattle manure: modeling of hydrolysis and acidogenesis. Water Research, Vol. 41, pp. 323-332.


5. Christy, P.M., Gopinath, L.R., Divya, D., 2014. A review on anaerobic decomposition and enhancement of biogas production through enzymes and microorganisms. Renewable and Sustainable Energy Reviews, Vol. 34, pp. 167-173.


6. Gerardi, M.H. 2003. The microbiology of anaerobic digesters. New Jersey: John Wiley & Sons.


7. Krishna, G.G., Kumar, P., Kumar, P., 2009. Treatment of low-strength soluble wastewater using an anaerobic baffled reactor (ABR). Journal of Environmental Management, Vol. 90, pp. 166-176.


8. Liu, R., Tian, Q., Chen, J., 2010. The developments of anaerobic baffled reactor for wastewater treatment: a review. African Journal of Biotechnology, Vol. 9, pp. 1535-1542.


9. Barber, W.P., Stuckey, D.C., 1999. The use of the anaerobic baffled reactor (ABR) for wastewater treatment: a review. Water Research, Vol. 33, pp. 1559-1578.


10. Hutnan, M., Drtil, M., Mrafkova, L., 2000. Anaerobic biodegradation of sugar beet pulp. Biodegradation, Vol. 11, pp. 203-211.


11. Gholikandi, G.B., Jamshidi, S., Hazrati, H., 2014. Optimization of anaerobic baffled reactor (ABR) using artificial neural network in municipal wastewater treatment. Environmental Engineering & Management Journal (EEMJ), Vol. 13, pp. 95-104.


12. Ji, G.D., Sun, T.H., Ni, J.R., Tong, J.J., 2009. Anaerobic baffled reactor (ABR) for treating heavy oil produced water with high concentrations of salt and poor nutrient. Bioresource Technology, Vol. 100, pp. 1108-1114.


13. Huajun, F.E.N.G., Lifang, H., Dan, S., Chengran, F.A.N.G., Yonghua, H.E., Dongsheng, S.H.E.N., 2008. Effects of operational factors on soluble microbial products in a carrier anaerobic baffled reactor treating dilute wastewater. Journal of Environmental Sciences, Vol. 20, pp. 690-695.


14. Liu, X.L., Ren, N.Q., Wan, C.L., 2007. Hydrodynamic characteristics of a four-compartment periodic anaerobic baffled reactor. Journal of Environmental Sciences, Vol. 19, pp. 1159-1165.


15. Gerardi, M.H. 2006. Wastewater bacteria. New Jersey: John Wiley & Sons.


16. Bitton, G. 2005. Wastewater microbiology. New Jersey: John Wiley & Sons.


17. Oxtoby, D.W., Gillis, H.P., Butler, L.J. 2015. Principles of modern chemistry. Boston: Cengage Learning.


18. Chen, Y., Cheng, J.J., Creamer, K.S., 2008. Inhibition of anaerobic digestion process: a review. Bioresource Technology, Vol. 99, pp. 4044-4064.


19. Sallis, P.J., Uyanik, S., 2003. Granule development in a split-feed anaerobic baffled reactor. Bioresource Technology, Vol. 89, pp. 255-265.


20. Stamatelatou, K., Skiadas, I.V., Lyberatos, G., 2004. On the behavior of the periodic anaerobic baffled reactor (PABR) during the transition from carbohydrate to protein-based feedings. Bioresource Technology, Vol. 92, pp. 321-326.


21. Hu, S., Yang, F., Liu, S., Yu, L., 2009. The development of a novel hybrid aerating membrane-anaerobic baffled reactor for the simultaneous nitrogen and organic carbon removal from wastewater. Water Research, Vol. 43, pp. 381-388.


22. Yu, Y., Lu, X., Wu, Y., 2014. Performance of an anaerobic baffled filter reactor in the treatment of algae-laden water and the contribution of granular sludge. Water, Vol. 6, pp. 122-138.


23. Pirsaheb, M., Mohamadi, S., Rahmatabadi, S., Hossini, H., Motteran, F., 2017. Simultaneous wastewater treatment and biogas production using integrated anaerobic baffled reactor granular activated carbon from baker’s yeast wastewater. Environmental Technology, Vol. 38, pp. 1-12.


24. Badalians Gholikandi, G., Jamshidi, Sh., Valipour, A., 2012. Upgrading anaerobic reactors employing electrolysis process. Environmental Studies, Vol. 38 (4), pp. 9-16 (persian).


25. Aqaneghad, M., Moussavi, G., 2016. Electrochemically enhancement of the anaerobic baffled reactor performance as an appropriate technology for treatment of municipal wastewater in developing countries. Sustainable Environment Research, Vol. 26, pp. 203-208.


26. Mahmoud, A., Olivier, J., Vaxelaire, J., Hoadley, A.F., 2010. Electrical field: A historical review of its application and contributions in wastewater sludge dewatering. Water Research, Vol. 44, pp. 2381-2407.


27. A.P.H.A., A.W.W.A., Water Environmental Federation. 2012. Standard methods for the examination of water and wastewater. 22^th edition. USA: American Water Works Association.