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Sugarcane bagasse as nutrient and support material for Cr(VI)-reducing biofilm

The high cost of culture growth medium is one of the problems faced in the scaling-up of biological processes involved in wastewater treatment. This makes it imperative to find a useful, cheap and easily available alternative source for culture growth medium. The present work highlights the use of s...

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Main Authors: Wan Ahmad, Wan Haslinda, Jong, Bor Chyan, Zakaria, Zainul Akmar, Ahmad, Wan Azlina
Format: Article
Language:English
Published: Elsevier Limited 2015
Subjects:
QD Chemistry
Online Access:http://eprints.utm.my/id/eprint/56208/1/WanHaslindaWanAhmad2015_SugarcaseBagasseasNutrientandSupportMaterial.pdf
http://eprints.utm.my/id/eprint/56208/
http://dx.doi.org/10.1016/j.ibiod.2015.03.007
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spelling my.utm.562082016-11-21T01:03:15Z http://eprints.utm.my/id/eprint/56208/ Sugarcane bagasse as nutrient and support material for Cr(VI)-reducing biofilm Wan Ahmad, Wan Haslinda Jong, Bor Chyan Zakaria, Zainul Akmar Ahmad, Wan Azlina QD Chemistry The high cost of culture growth medium is one of the problems faced in the scaling-up of biological processes involved in wastewater treatment. This makes it imperative to find a useful, cheap and easily available alternative source for culture growth medium. The present work highlights the use of sugarcane bagasse (SCB) to sustain the population of Cr(VI) reducing immobilized-biofilm system in a non-sterile condition. The locally isolated Cr(VI) reducing-resistant Acinetobacter haemolyticus was used as primary bacteria inside the sugarcane bagasse packed flow-through column and showed 92-99% Cr(VI) reduction ability during the adaptation stage using 10-100 mg/L of Cr(VI). During the column study, around 4 h (3.0 mL/min) was required to achieve complete reduction of 25 mg/L Cr(VI). The retention time increases with the increase in Cr(VI) concentration. The morphology of the immobilized cells was slightly changed in the presence of Cr(VI) as shown from the FESEM analysis. Phylogenetic analysis of the cultured bacterium from the biofilm samples suggested the dominance of Chitinophaga terrae, Laribacter hongkongensis, Ottowia thiooxydans, Rhizobium cellulosilyticum, Candidate division OP10, Pedobacter sp. as well as uncultured bacterium. Overall, sugarcane bagasse may be used as an excellent alternative and cost-effective growth medium for cultivation of A. haemolyticus as well as support material in a packed-bed Cr(VI) reduction system. Elsevier Limited 2015-08-01 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/56208/1/WanHaslindaWanAhmad2015_SugarcaseBagasseasNutrientandSupportMaterial.pdf Wan Ahmad, Wan Haslinda and Jong, Bor Chyan and Zakaria, Zainul Akmar and Ahmad, Wan Azlina (2015) Sugarcane bagasse as nutrient and support material for Cr(VI)-reducing biofilm. International Biodeterioration and Biodegradation, 102 . pp. 3-10. ISSN 0964-8305 http://dx.doi.org/10.1016/j.ibiod.2015.03.007
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/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Wan Ahmad, Wan Haslinda
Jong, Bor Chyan
Zakaria, Zainul Akmar
Ahmad, Wan Azlina
Sugarcane bagasse as nutrient and support material for Cr(VI)-reducing biofilm
description The high cost of culture growth medium is one of the problems faced in the scaling-up of biological processes involved in wastewater treatment. This makes it imperative to find a useful, cheap and easily available alternative source for culture growth medium. The present work highlights the use of sugarcane bagasse (SCB) to sustain the population of Cr(VI) reducing immobilized-biofilm system in a non-sterile condition. The locally isolated Cr(VI) reducing-resistant Acinetobacter haemolyticus was used as primary bacteria inside the sugarcane bagasse packed flow-through column and showed 92-99% Cr(VI) reduction ability during the adaptation stage using 10-100 mg/L of Cr(VI). During the column study, around 4 h (3.0 mL/min) was required to achieve complete reduction of 25 mg/L Cr(VI). The retention time increases with the increase in Cr(VI) concentration. The morphology of the immobilized cells was slightly changed in the presence of Cr(VI) as shown from the FESEM analysis. Phylogenetic analysis of the cultured bacterium from the biofilm samples suggested the dominance of Chitinophaga terrae, Laribacter hongkongensis, Ottowia thiooxydans, Rhizobium cellulosilyticum, Candidate division OP10, Pedobacter sp. as well as uncultured bacterium. Overall, sugarcane bagasse may be used as an excellent alternative and cost-effective growth medium for cultivation of A. haemolyticus as well as support material in a packed-bed Cr(VI) reduction system.
format Article
author Wan Ahmad, Wan Haslinda
Jong, Bor Chyan
Zakaria, Zainul Akmar
Ahmad, Wan Azlina
author_facet Wan Ahmad, Wan Haslinda
Jong, Bor Chyan
Zakaria, Zainul Akmar
Ahmad, Wan Azlina
author_sort Wan Ahmad, Wan Haslinda
title Sugarcane bagasse as nutrient and support material for Cr(VI)-reducing biofilm
title_short Sugarcane bagasse as nutrient and support material for Cr(VI)-reducing biofilm
title_full Sugarcane bagasse as nutrient and support material for Cr(VI)-reducing biofilm
title_fullStr Sugarcane bagasse as nutrient and support material for Cr(VI)-reducing biofilm
title_full_unstemmed Sugarcane bagasse as nutrient and support material for Cr(VI)-reducing biofilm
title_sort sugarcane bagasse as nutrient and support material for cr(vi)-reducing biofilm
publisher Elsevier Limited
publishDate 2015
url http://eprints.utm.my/id/eprint/56208/1/WanHaslindaWanAhmad2015_SugarcaseBagasseasNutrientandSupportMaterial.pdf
http://eprints.utm.my/id/eprint/56208/
http://dx.doi.org/10.1016/j.ibiod.2015.03.007
_version_ 1643654027216420864
score 13.211869

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