The removal of chromium (VI) and phenol from industrial waste waters mediated by Acinetobacter haemolyticus

Contamination of the environment due to heavy metals and organic waste is a serious problem nowadays. These types of contaminants are toxic and can be dangerous to human health. Heavy metal contaminants include copper, lead and hexavalent chromium while phenol, benzene and toluene are examples of or...

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Main Author:	Mohd. Sidek, Mohd. Saufi
Format:	Thesis
Language:	English
Published:	2010
Subjects:	TD Environmental technology Sanitary engineering
Online Access:	http://eprints.utm.my/id/eprint/12374/1/MohdSaufiMohdMFSA2010.pdf
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id	my-utm-ep.12374
record_format	uketd_dc
spelling	my-utm-ep.123742017-09-13T03:42:18Z The removal of chromium (VI) and phenol from industrial waste waters mediated by Acinetobacter haemolyticus 2010 Mohd. Sidek, Mohd. Saufi TD Environmental technology. Sanitary engineering Contamination of the environment due to heavy metals and organic waste is a serious problem nowadays. These types of contaminants are toxic and can be dangerous to human health. Heavy metal contaminants include copper, lead and hexavalent chromium while phenol, benzene and toluene are examples of organic pollutants. A treatment of these contaminated waste chemicals must be carried out before they can be released into the environment. Conventional techniques for the treatment of these contaminants are not cost - effective as they are chemical and energy - intensive. Thus, the emerging biological methods for treating these wastes i.e. bioremediation, is more favorable. In this study, a locally isolated bacterium, Acinetobacter haemolyticus was chosen for the removal of Cr (VI) and phenol using batch and column systems. Cr (VI) and phenol removal studies were carried out separately and simultaneously using batch and column systems. When treated separately, about 90% and 95% of Cr (VI) could be removed using the batch and column system, respectively. However, for phenol, 30 - 65% and 50 - 80% of the organic compound could be removed using the batch and column system, respectively. In the simultaneous treatment process, the mixed waste effluent of Cr (VI) and phenol was also treated using the same system. About 70% and 85% of Cr (VI) could be removed in the batch and column system respectively while for phenol, about 30 - 40% was removed using the batch system and 50 - 60% for the column system. The batch system also required a longer retention time compared to the column system. This study has demonstrated the ability of Acinetobacter haemolitycus to remove Cr (VI) and phenol both from separate and mixed effluent, thus offering a promising alternative method for the detoxification of both pollutants prior to releasing the effluent into the environment. 2010 Thesis http://eprints.utm.my/id/eprint/12374/ http://eprints.utm.my/id/eprint/12374/1/MohdSaufiMohdMFSA2010.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TD Environmental technology Sanitary engineering
spellingShingle	TD Environmental technology Sanitary engineering Mohd. Sidek, Mohd. Saufi The removal of chromium (VI) and phenol from industrial waste waters mediated by Acinetobacter haemolyticus
description	Contamination of the environment due to heavy metals and organic waste is a serious problem nowadays. These types of contaminants are toxic and can be dangerous to human health. Heavy metal contaminants include copper, lead and hexavalent chromium while phenol, benzene and toluene are examples of organic pollutants. A treatment of these contaminated waste chemicals must be carried out before they can be released into the environment. Conventional techniques for the treatment of these contaminants are not cost - effective as they are chemical and energy - intensive. Thus, the emerging biological methods for treating these wastes i.e. bioremediation, is more favorable. In this study, a locally isolated bacterium, Acinetobacter haemolyticus was chosen for the removal of Cr (VI) and phenol using batch and column systems. Cr (VI) and phenol removal studies were carried out separately and simultaneously using batch and column systems. When treated separately, about 90% and 95% of Cr (VI) could be removed using the batch and column system, respectively. However, for phenol, 30 - 65% and 50 - 80% of the organic compound could be removed using the batch and column system, respectively. In the simultaneous treatment process, the mixed waste effluent of Cr (VI) and phenol was also treated using the same system. About 70% and 85% of Cr (VI) could be removed in the batch and column system respectively while for phenol, about 30 - 40% was removed using the batch system and 50 - 60% for the column system. The batch system also required a longer retention time compared to the column system. This study has demonstrated the ability of Acinetobacter haemolitycus to remove Cr (VI) and phenol both from separate and mixed effluent, thus offering a promising alternative method for the detoxification of both pollutants prior to releasing the effluent into the environment.
format	Thesis
qualification_level	Master's degree
author	Mohd. Sidek, Mohd. Saufi
author_facet	Mohd. Sidek, Mohd. Saufi
author_sort	Mohd. Sidek, Mohd. Saufi
title	The removal of chromium (VI) and phenol from industrial waste waters mediated by Acinetobacter haemolyticus
title_short	The removal of chromium (VI) and phenol from industrial waste waters mediated by Acinetobacter haemolyticus
title_full	The removal of chromium (VI) and phenol from industrial waste waters mediated by Acinetobacter haemolyticus
title_fullStr	The removal of chromium (VI) and phenol from industrial waste waters mediated by Acinetobacter haemolyticus
title_full_unstemmed	The removal of chromium (VI) and phenol from industrial waste waters mediated by Acinetobacter haemolyticus
title_sort	removal of chromium (vi) and phenol from industrial waste waters mediated by acinetobacter haemolyticus
granting_institution	Universiti Teknologi Malaysia, Faculty of Science
granting_department	Faculty of Science
publishDate	2010
url	http://eprints.utm.my/id/eprint/12374/1/MohdSaufiMohdMFSA2010.pdf
_version_	1747814930766102528

The removal of chromium (VI) and phenol from industrial waste waters mediated by Acinetobacter haemolyticus

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