UPM Institutional Repository

Simultaneous organic and nitrogen removal using anoxic - aerobic membrane bioreactor


Birima, Ahmed Hussein and Megat Mohd Noor, Megat Johari and Mohammed, Thamer Ahmed and Muyibi, Suleyman Aremu and Idris, Azni (2006) Simultaneous organic and nitrogen removal using anoxic - aerobic membrane bioreactor. In: Seminar on Engineering and Technology (SET2006) , 4-5 Sept. 2006, Putrajaya, Malaysia. (pp. 393-399).


In this paper, anoxic - aerobic membrane bioreactor was constructed and used to investigate the possibility of simultaneous removal of organics and nitrogen. The membrane module was submerged in the aerobic zone of the bioreactor and was operated under an intermittent suction mode. The module was aerated from beneath the microfiltration module to provide the cross flow effect and the oxygen requirement for the biological process. The aeration around the membrane module and the intermittent mode served as the cleaning mechanism for the membrane; this resulted in an operation of the reactor at the flux of 2.7 – 5.4 L m-2 h-1 for 180 days. Hydraulic retention time was ranged between 14.9 to 22.3 hours. MLSS of over 12000 mg/l was reached. The mixed liquor suspended solids (MLSS) internal recycling ratio (between the aerated compartment and anoxic compartment) was maintained at 300 % influent flow rate. The average efficiency of the chemical oxygen demand (COD), removal was 99.3 % for an average COD of 418 mg/l. 99.3 % of influent ammonia was converted to oxidized nitrogen. Permeate inorganic nitrogen reduction was 65.3 %.

Download File

[img] PDF (Full text)
39657.pdf - Published Version
Restricted to Repository staff only

Download (178kB)

Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
Publisher: Federation of Engineering Institutions of Islamic Countries
Keywords: Membrane bioreactor (MBR); Intermittent suction; Organic removal; Nitrogen removal; Membrane flux
Depositing User: Erni Suraya Abdul Aziz
Date Deposited: 20 Aug 2015 09:31
Last Modified: 20 Aug 2015 09:31
URI: http://psasir.upm.edu.my/id/eprint/39657
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item