Removal of Nitrogen Compounds from Industrial Wastewater Using Sequencing Batch Reactor: The Effects of React Time

Authors: Ali W. Alattabi, Khalid S. Hashim, Hassnen M. Jafer, Ali Alzeyadi

Abstract:

This study was performed to optimise the react time (RT) and study its effects on the removal rates of nitrogen compounds in a sequencing batch reactor (SBR) treating synthetic industrial wastewater. The results showed that increasing the RT from 4 h to 10, 16 and 22 h significantly improved the nitrogen compounds’ removal efficiency, it was increased from 69.5% to 95%, 75.7 to 97% and from 54.2 to 80.1% for NH₃-N, NO₃-N and NO₂-N respectively. The results obtained from this study showed that the RT of 22 h was the optimum for nitrogen compounds removal efficiency.

Keywords: Ammonia-nitrogen, retention time, nitrate, nitrite, sequencing batch reactor, sludge characteristics.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1339730

References:

[1] Patil, P. G., Kulkarni, G. S., Kore, S. S. V. & Kore, S. V. S., Aerobic sequencing batch reactor for wastewater treatment: A review. International Journal of Engineering research & technology., 2, 2278–0181, 2013.
[2] Wang, Y. T., Effect of chemical oxidation on anaerobic biodegradation of model phenolic compounds. Water Environ Res., 64, 268–273, 1992.
[3] Babu, K. S., Ajith kumar, P. V. & Kunhi, A. A. M., Mineralization of phenol and its derivatives by Pseudomonas sp. strain CP4. World J Microbiol Biotechnol., 11, 661–664, 1995.
[4] Fang, H. H. P., Chen, T., Li, Y.Y. & Chui, H. K., Degradation of phenol in wastewater in an upflow anaerobic sludge blanket reactor. Water Res., 30, 1353–1360, 1996.
[5] Tchobanoglous, G., Burton, F. L. & Stensel, H. D., Wastewater Engineering: Treatment and Reuse. McGraw Hill, New York, 4th edn., 2003.
[6] Suthaker, S., Polprasert, C. & Droste, R. L., Sequencing batch anaerobic reactors for the treatment of a high strength organic wastewater. Water Sci Technol., 23, 1249–57, 1991.
[7] Yoong, E.T. & Lant, P.A., Biodegradation of high strength phenolic wastewater using SBR. Water Sci Technol., 43, 299–306, 2001.
[8] Huang, Z., Ong, S. L. & Ng, H. Y., Submerged anaerobic membrane bioreactor for low-strength wastewater treatment: Effect of HRT and SRT on treatment performance and membrane fouling. Water Research., 45, 705–713, 2011.
[9] Shariati, S. R., Bonakdarpour, B., Zare, N. & Ashtiani, F. Z., The effect of hydraulic retention time on the performance and fouling characteristics of membrane sequencing batch reactors used for the treatment of synthetic petroleum refinery wastewater. Bioresour Technol., 102, 7692–7699, 2011.
[10] Zhao, D., Liu, C., Zhang, Y. & Liu, Q., Biodegradation of nitrobenzene by aerobic granular sludge in a sequencing batch reactor (SBR). Desalination., 281, 17–22, 2011.
[11] American Public Health Association (APHA), Standard methods for the examination of water and wastewater, 18th ed., Washington, DC, USA: APHA, 2012.
[12] Thakur, C., Mall, I. D. & Srivastava, V. C., Effect of Hydraulic Retention Time and Filling Time on Simultaneous Biodegradation of Phenol, Resorcinol and Catechol in a Sequencing Batch Reactor. Archives of Environmental Protection., 39, 69-80 2013.
[13] Hasan, H. A., Abdullah, S. R. S., Al-Attabi, A. W. N., Nash, D. A. H., Anuar, N., Rahman, N. A. & Titah, H. S., Removal of ibuprofen, ketoprofen, COD and nitrogen compounds from pharmaceutical wastewater using aerobic suspension-sequencing batch reactor (ASSBR). Separation and Purification Technology., 157, 215–221, 2016.