Sequential nitrification and denitrification in a novel palm shell granular activated carbon twin-chamber upflow bio-electrochemical reactor for treating ammonium-rich wastewater

Mousavi, Seyyed Alireza and Ibrahim, Shaliza and Aroua, Mohamed Kheireddine (2012) Sequential nitrification and denitrification in a novel palm shell granular activated carbon twin-chamber upflow bio-electrochemical reactor for treating ammonium-rich wastewater. Bioresource Technology, 125. pp. 256-266. ISSN 0960-8524

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Official URL: https://doi.org/10.1016/j.biortech.2012.08.075

Abstract

In this study, a twin-chamber upflow bio-electrochemical reactor packed with palm shell granular activated carbon as biocarrier and third electrode was used for sequential nitrification and denitrification of nitrogen-rich wastewater under different operating conditions. The experiments were performed at a constant pH value for the denitrification compartment. The effect of variables, namely, electric current (I) and hydraulic retention time (HRT), on the pH was considered in the nitrification chamber. The response surface methodology was used based on three levels to develop empirical models for the study on the effects of HRT and current values as independent operating variables on NH4 +-N removal. The results showed that ammonium was reduced within the function of an extensive operational range of electric intensity (20-50mA) and HRT (6-24h). The optimum condition for ammonium oxidation (90) was determined with an I of 32mA and HRT of 19.2h. © 2012 Elsevier Ltd.

Item Type: Article
Additional Information: Mousavi, Seyyedalireza Ibrahim, Shaliza Aroua, Mohamed Kheireddine eng Research Support, Non-U.S. Gov't England 2012/10/03 06:00 Bioresour Technol. 2012 Dec;125:256-66. doi: 10.1016/j.biortech.2012.08.075. Epub 2012 Aug 31.
Uncontrolled Keywords: Bio-electrochemical; Electrolysis; Nitrification; Denitrification; Response surface methodology
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 26 Feb 2014 01:46
Last Modified: 27 Nov 2019 08:15
URI: http://eprints.um.edu.my/id/eprint/9444

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