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Treatment of restaurant wastewater using ultrafiltration and nanofiltration membranes

In this work, two commercial ultrafiltration (UF) membranes, i.e. UF PES-10kDa and UF PVDF-100kDa and two nanofiltration (NF) membranes, i.e. NF-90 and NF-270 were used to treat restaurant wastewater discharged from local medium-sized restaurant which served typical Malay halal foods. The wastewater...

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Main Authors: Lau, Woei Jye, Sarobo, Zulaikha, Ismail, Ahmad Fauzi, Jaafar, Jafariah
Format: Article
Published: Elsevier 2014
Subjects:
TN Mining engineering. Metallurgy
Online Access:http://eprints.utm.my/id/eprint/63124/
http://dx.doi.org/10.1016/j.jwpe.2014.05.001
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spelling my.utm.631242017-06-15T01:42:30Z http://eprints.utm.my/id/eprint/63124/ Treatment of restaurant wastewater using ultrafiltration and nanofiltration membranes Lau, Woei Jye Sarobo, Zulaikha Ismail, Ahmad Fauzi Jaafar, Jafariah TN Mining engineering. Metallurgy In this work, two commercial ultrafiltration (UF) membranes, i.e. UF PES-10kDa and UF PVDF-100kDa and two nanofiltration (NF) membranes, i.e. NF-90 and NF-270 were used to treat restaurant wastewater discharged from local medium-sized restaurant which served typical Malay halal foods. The wastewater which was subject to membrane treatment process was collected at the point of discharge without undergoing any pre-treatment process. The separation performances of membranes were characterized with respect to BOD5, COD, turbidity and conductivity removal while the membrane sustainability was evaluated based on the water flux recovery. Promising results of COD and turbidity removal (between 97.8 and 99.9%) were able to achieve regardless of membrane type, indicating the size of pollutants contributing to COD and turbidity values are significantly larger than 100kDa. Removal rates of BOD5 and conductivity were found to be strongly dependent on the membrane pore size. As NF-90 exhibited the smallest pore structure among the membranes studied, it showed the highest BOD5 (86.8%) and conductivity removal (82.3%). In terms of sustainability, it is found that the original water flux of NF-90 was able to be retrieved by >50% compared to between 15 and 38% reported in the UF membranes, after only a simple rinsing process. This indicated that NF-90 is less susceptible to fouling and is more suitable and reliable to be employed for restaurant wastewater treatment. Elsevier 2014 Article PeerReviewed Lau, Woei Jye and Sarobo, Zulaikha and Ismail, Ahmad Fauzi and Jaafar, Jafariah (2014) Treatment of restaurant wastewater using ultrafiltration and nanofiltration membranes. Journal of Water Process Engineering, 2 . pp. 58-62. ISSN 2214-7144 http://dx.doi.org/10.1016/j.jwpe.2014.05.001 DOI:10.1016/j.jwpe.2014.05.001
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TN Mining engineering. Metallurgy
spellingShingle TN Mining engineering. Metallurgy
Lau, Woei Jye
Sarobo, Zulaikha
Ismail, Ahmad Fauzi
Jaafar, Jafariah
Treatment of restaurant wastewater using ultrafiltration and nanofiltration membranes
description In this work, two commercial ultrafiltration (UF) membranes, i.e. UF PES-10kDa and UF PVDF-100kDa and two nanofiltration (NF) membranes, i.e. NF-90 and NF-270 were used to treat restaurant wastewater discharged from local medium-sized restaurant which served typical Malay halal foods. The wastewater which was subject to membrane treatment process was collected at the point of discharge without undergoing any pre-treatment process. The separation performances of membranes were characterized with respect to BOD5, COD, turbidity and conductivity removal while the membrane sustainability was evaluated based on the water flux recovery. Promising results of COD and turbidity removal (between 97.8 and 99.9%) were able to achieve regardless of membrane type, indicating the size of pollutants contributing to COD and turbidity values are significantly larger than 100kDa. Removal rates of BOD5 and conductivity were found to be strongly dependent on the membrane pore size. As NF-90 exhibited the smallest pore structure among the membranes studied, it showed the highest BOD5 (86.8%) and conductivity removal (82.3%). In terms of sustainability, it is found that the original water flux of NF-90 was able to be retrieved by >50% compared to between 15 and 38% reported in the UF membranes, after only a simple rinsing process. This indicated that NF-90 is less susceptible to fouling and is more suitable and reliable to be employed for restaurant wastewater treatment.
format Article
author Lau, Woei Jye
Sarobo, Zulaikha
Ismail, Ahmad Fauzi
Jaafar, Jafariah
author_facet Lau, Woei Jye
Sarobo, Zulaikha
Ismail, Ahmad Fauzi
Jaafar, Jafariah
author_sort Lau, Woei Jye
title Treatment of restaurant wastewater using ultrafiltration and nanofiltration membranes
title_short Treatment of restaurant wastewater using ultrafiltration and nanofiltration membranes
title_full Treatment of restaurant wastewater using ultrafiltration and nanofiltration membranes
title_fullStr Treatment of restaurant wastewater using ultrafiltration and nanofiltration membranes
title_full_unstemmed Treatment of restaurant wastewater using ultrafiltration and nanofiltration membranes
title_sort treatment of restaurant wastewater using ultrafiltration and nanofiltration membranes
publisher Elsevier
publishDate 2014
url http://eprints.utm.my/id/eprint/63124/
http://dx.doi.org/10.1016/j.jwpe.2014.05.001
_version_ 1643655625634217984
score 13.211869

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