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Bio-fouling reducers for improving the performance of an aerobic submerged membrane bioreactor treating palm oil mill effluent

Yuniarto, Adhi and Noor, Zainura Zainon and Ujang, Zaini and Olsson, Gustaf and Aris, Azmi and Hadibarata, Tony (2013) Bio-fouling reducers for improving the performance of an aerobic submerged membrane bioreactor treating palm oil mill effluent. Desalination, 316 . pp. 146-153. ISSN 0011-9164

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Official URL: https://doi.org/10.1016/j.desal.2013.02.002

Abstract

A bench scale aerobic submerged membrane bioreactor (ASMBR) was used to treat diluted palm oil mill effluent (POME). For further improving the effluent quality and reduction of bio-fouling, powdered activated carbon (PAC) and zeolite were used as bio-fouling reducers (BFR). We compared the performances of ASMBR without BFR (called BFR0) with ASMBR using BFR, namely 2 g/L PAC (BFR1), 4 g/L PAC (BFR2) and 2 g/L zeolite (BFR3) for a period of about 70 days. Each system with BFR showed distinct performances by producing higher effluent quality as compared with BFR0. On average, the systems with and without BFR removed COD by 97.5–98.5% and 95.2%, respectively. The ASMBR with BFR also produced permeate with average residual color between 16 and 26 Pt-Co, as compared to 80 Pt-Co by BFR0. The addition of BFR increased the critical flux from 20 LMH (BFR0) to 36, 42 and 30 LMH (BFR1, BFR2, and BFR3). Furthermore, the ASMBR systems with BFR formed lower operational trans-membrane pressure (TMP), lowered the concentration of soluble microbial products (SMP) and increased the concentration of EPS.

Item Type:Article
Uncontrolled Keywords:aerobic submerged membrane bioreactor, bio-fouling reducer, palm oil mill effluent
Subjects:T Technology > TP Chemical technology
Divisions:Chemical Engineering
ID Code:49284
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:02 Dec 2015 02:10
Last Modified:30 Nov 2018 06:55

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