Degradation of 3-Nitrophenol with Sodium Acetate as Co-Substrate in an Upflow Anaerobic Sludge Blanket Reactor

Abstract:

The effects on degrading 3-nitrophenol (3-NP) with sodium acetate as co-substrate under the conditions of laboratory-scale upflow anaerobic sludge blanket (UASB) reactor was investigated at an operating temperature of 35±1°C in this study. The results showed that the optimum influent 3-NP concentration was 71.6mg/L when keeping influent COD concentration for 2500 mg/L and hydraulic retention time (HRT) for 30 h. At the stage of reducing influent COD concentration, all of the 3-NP removal rates were more than 95%; while the conversion rate of 3-aminophenol (3-AP) decreased from 61.4% to 0.2%. Meanwhile, the reduction of HRT also had significantly effects on the treatment effect of 3-NP. With the decreases of HRT, COD removal dropped to 49.7% from 82.7%.

• Periodical: Advanced Materials Research (Volumes 393-395)
• Pages: 1153-1156
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.393-395.1153
• Online since: November 2011
• Authors: Zong Lian She, Lei Lei Li, Ying Jie Zhu, Tian Xie, Li Na Jiang, Meng Chun Gao
• Keywords: 3-Nitrophenol, Co-Substrate, Sodium Acetate, UASB

References

[1] Kavitha, V. and K. Palanivelu, Degradation of nitrophenols by Fenton and photo-Fenton processes. Journal of Photochemistry and Photobiology A: Chemistry, 2005. 170(1): pp.83-95.

DOI: 10.1016/j.jphotochem.2004.08.003

[2] Diaconu, I., et al., Separation of nitrophenols. Equilibriums in bi- and tri-phasic systems. Arabian Journal of Chemistry, 2011. 4(1): pp.99-103.

DOI: 10.1016/j.arabjc.2010.06.025

[3] Majak, W. and R.E. McDiarmid, Detection and quantitative determination of 3-nitropropionic acid in bovine urine. Toxicology Letters, 1990. 50(2-3): pp.213-220.

DOI: 10.1016/0378-4274(90)90013-c

[4] Karim, K. and S.K. Gupta, Continuous biotransformation and removal of nitrophenols under denitrifying conditions. Water Research, 2003. 37(12): pp.2953-2959.

DOI: 10.1016/s0043-1354(03)00073-3

[5] Podeh, M.R.H., S.K. Bhattacharya and M. Qu, Effects of nitrophenols on acetate utilizing methanogenic systems. Water Research, 1995. 29(2): pp.391-399.

DOI: 10.1016/0043-1354(94)00193-b

[6] Donlon B, Razo-Flores EA, Field J, Lettinga GA, Field J. Continuous detoxification, transformation and degradation of nitrophenols in upflow anaerobic sludge blanket (UASB) reactors. Biotechnol Bioeng 1996; 51: 439–49.

DOI: 10.1002/(sici)1097-0290(19960820)51:4<439::aid-bit7>3.0.co;2-j

[7] She, Z., et al., Toxicity and biodegradation of 2, 4-dinitrophenol and 3-nitrophenol in anaerobic systems. Process Biochemistry, 2005. 40(9): pp.3017-3024.

DOI: 10.1016/j.procbio.2005.02.007

[8] Pawlowski, L., Standard methods for the examination of water and wastewater, 18th edition : Arnold E. Greenberd, Lenore S. Clesceri, Andrew D. Eaton (Editors) Water Environment Federation, Alexandria, USA, 1992; 1025 pp; US$120 (Hardcover); ISBN 0-87553-207-1. The Science of The Total Environment, 1994. 142(3): pp.227-228.

DOI: 10.1016/0048-9697(94)90332-8

[9] Buchauer,K., 1998. A comparison of two simple titration procedures to determine volatile fatty acids in influents to wastewater and sludge treatment processes. Water SA 24(1), 49–56.