Simultaneous removal of organic carbon, nitrogen, and phosphorus from a domestic wastewater using anaerobic sequencing batch reactors

Main Article Content

P. Fongsatitkul
P. Elefsiniotis
S. Yoosook
R. Karcharnubarn

Abstract

This research demonstrated the feasibility of using anaerobic sequencing batch reactors (An A2/02 SBR) to achieve simultaneous removal of organic carbon, nitrogen, and phosphorus from a domestic wastewater. The effects of influent carbon to nitrogen (C/N) ratio, solids retention time (SRT), and maximum system loading capacity on process performance were investigated. It was found that a minimum influent chemical oxygen demand (COD) concentration of 300 mg/L and a corresponding COD to total Kjeldahl nitrogen (COD/TKN) ratio of 7 were required in order to obtain a satisfactory (over 90%) phosphorus removal level. Since the wastewater used was deficient in carbon, addition of glucose as an external carbon source was necessary to maintain the above influent COD/TKN ratio. Furthermore, the percent total phosphorus (TP) removal can be correlated either to the influent COD concentration or to the COD/TKN ratio in a quantitative manner using polynomial expressions. An increase in SRT from 20 to 30 days did not affect COD performance; however, it improved remarkably both TKN and TP removal elTiciencies. On the other hand, an increase in the organic loading rate to a level of 0.63-0.66 kg COD/m3-d or higher appeared to reduce significantly the ability of the system regarding the phosphorus removal, and to a lesser extent the nitrogen removal efficiency.

Downloads

Download data is not yet available.

Article Details

How to Cite
Fongsatitkul, P., Elefsiniotis, P., Yoosook, S., & Karcharnubarn, R. (2004). Simultaneous removal of organic carbon, nitrogen, and phosphorus from a domestic wastewater using anaerobic sequencing batch reactors. Malaysian Journal of Science, 23, 149–157. Retrieved from https://ajba.um.edu.my/index.php/MJS/article/view/9050
Section
Original Articles