The effect of mixed liquor suspended solids (MLSS) on biofouling in a hybrid membrane bioreactor for the treatment of high concentration organic wastewater
(2011) In Water Science and Technology 63(8). p.1701-1706- Abstract
- Biofouling is a crucial factor in membrane bioreactor (MBR) applications, particularly for high organic loading operations. This paper reports a study on biofouling in an MBR to establish a relationship between critical flux, J(c), mixed liquor suspended solids (MLSS) (ranging from 5 to 20 g L-1) and volumetric loading rate (6.3 kg COD m(-3) h(-1)) of palm oil mill effluent (POME). A lab-scale 100 L hybrid MBR consisting of anaerobic, anoxic, and aerobic reactors was used with flat sheet microfiltration (MF) submerged in the aerobic compartment. The food-to-microorganism (F/M) ratio was maintained at 0.18 kg COD kg(-1) MLSSd(-1). The biofouling tendency of the membrane was obtained based on the flux against the transmembrane pressure (TMP)... (More)
- Biofouling is a crucial factor in membrane bioreactor (MBR) applications, particularly for high organic loading operations. This paper reports a study on biofouling in an MBR to establish a relationship between critical flux, J(c), mixed liquor suspended solids (MLSS) (ranging from 5 to 20 g L-1) and volumetric loading rate (6.3 kg COD m(-3) h(-1)) of palm oil mill effluent (POME). A lab-scale 100 L hybrid MBR consisting of anaerobic, anoxic, and aerobic reactors was used with flat sheet microfiltration (MF) submerged in the aerobic compartment. The food-to-microorganism (F/M) ratio was maintained at 0.18 kg COD kg(-1) MLSSd(-1). The biofouling tendency of the membrane was obtained based on the flux against the transmembrane pressure (TMP) behaviour. The critical flux is sensitive to the MLSS. At the MLSS 20 g L-1 the critical flux is about four times lower than that for the MLSS concentration of 5 g L-1. The results showed high removal efficiency of denitrification and nitrification up to 97% at the MLSS concentration 20 g L-1. The results show that the operation has to compromise between a high and a low MLSS concentration. The former will favour a higher removal rate, while the latter will favour a higher critical flux. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1986628
- author
- Damayanti, A. ; Ujang, Z. ; Salim, M. R. and Olsson, Gustaf LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- biofouling, flux, membrane bioreactor, MLSS, TMP
- in
- Water Science and Technology
- volume
- 63
- issue
- 8
- pages
- 1701 - 1706
- publisher
- IWA Publishing
- external identifiers
-
- wos:000290431500021
- scopus:79955854374
- ISSN
- 0273-1223
- DOI
- 10.2166/wst.2011.338
- language
- English
- LU publication?
- yes
- id
- 6e829c37-153e-4b12-9d43-8746b9e2e6cc (old id 1986628)
- date added to LUP
- 2016-04-01 14:13:58
- date last changed
- 2022-04-14 08:47:42
@article{6e829c37-153e-4b12-9d43-8746b9e2e6cc,
abstract = {{Biofouling is a crucial factor in membrane bioreactor (MBR) applications, particularly for high organic loading operations. This paper reports a study on biofouling in an MBR to establish a relationship between critical flux, J(c), mixed liquor suspended solids (MLSS) (ranging from 5 to 20 g L-1) and volumetric loading rate (6.3 kg COD m(-3) h(-1)) of palm oil mill effluent (POME). A lab-scale 100 L hybrid MBR consisting of anaerobic, anoxic, and aerobic reactors was used with flat sheet microfiltration (MF) submerged in the aerobic compartment. The food-to-microorganism (F/M) ratio was maintained at 0.18 kg COD kg(-1) MLSSd(-1). The biofouling tendency of the membrane was obtained based on the flux against the transmembrane pressure (TMP) behaviour. The critical flux is sensitive to the MLSS. At the MLSS 20 g L-1 the critical flux is about four times lower than that for the MLSS concentration of 5 g L-1. The results showed high removal efficiency of denitrification and nitrification up to 97% at the MLSS concentration 20 g L-1. The results show that the operation has to compromise between a high and a low MLSS concentration. The former will favour a higher removal rate, while the latter will favour a higher critical flux.}},
author = {{Damayanti, A. and Ujang, Z. and Salim, M. R. and Olsson, Gustaf}},
issn = {{0273-1223}},
keywords = {{biofouling; flux; membrane bioreactor; MLSS; TMP}},
language = {{eng}},
number = {{8}},
pages = {{1701--1706}},
publisher = {{IWA Publishing}},
series = {{Water Science and Technology}},
title = {{The effect of mixed liquor suspended solids (MLSS) on biofouling in a hybrid membrane bioreactor for the treatment of high concentration organic wastewater}},
url = {{http://dx.doi.org/10.2166/wst.2011.338}},
doi = {{10.2166/wst.2011.338}},
volume = {{63}},
year = {{2011}},
}