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Extraction of volatile fatty acids from leachate via liquid-liquid extraction and adsorption method

Volatile fatty acids (VFAs) are used in wide range of commercially-important chemicals. Treatment of leachate at landfills by fermentation process will produce VFAs (butyric acid, acetic acid, propionic acid, isovaleric acid and isobutyric acid) can be considered as a replacement for petroleum-based...

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Main Authors: Razali, Yasmin Syafikah, Tajarudin, Husnul Azan, Daud, Zawawi
Format: Article
Language:English
Published: Penerbit UTHM 2018
Subjects:
TA170-171 Environmental engineering
Online Access:http://eprints.uthm.edu.my/6021/1/AJ%202018%20%28971%29%20Extraction%20of%20volatile%20fatty%20acids%20from%20leachate%20via%20liquid-liquid%20extraction%20and%20adsorption%20method.pdf
http://eprints.uthm.edu.my/6021/
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spelling my.uthm.eprints.60212022-01-26T02:23:39Z http://eprints.uthm.edu.my/6021/ Extraction of volatile fatty acids from leachate via liquid-liquid extraction and adsorption method Razali, Yasmin Syafikah Tajarudin, Husnul Azan Daud, Zawawi TA170-171 Environmental engineering Volatile fatty acids (VFAs) are used in wide range of commercially-important chemicals. Treatment of leachate at landfills by fermentation process will produce VFAs (butyric acid, acetic acid, propionic acid, isovaleric acid and isobutyric acid) can be considered as a replacement for petroleum-based VFA due to their degradability, renewability and sustainability. Therefore, separation of VFAs residue after the leachate treatment is important and essential from the point of view of pollution control and recovery of useful material. The aim of this study is to compare the percentage of VFAs extracted between liquid-liquid extraction and adsorption method. The VFAs extracted in this study were acetic and butyric acids produced from the fermentation of leachate using Clostridium butyricum. Response surface methodology (RSM) was used using central composite design (CCD) to optimize the parameters that affect the extraction of acetic and butyric acids. Liquid-liquid extraction using petroleum ether (69/80) with optimum parameters (temperature: 35 oC, pH: 4.8, agitation: 175.4 rpm, incubation time: 16.8 h and volume of treated leachate: 14.1 %) showed that the acetic acid and butyric acid extracted were 28.1% and 88.8% respectively. On the other hand, adsorption method using activated carbon showed the highest extraction percentage of acetic acid, 87.4% and butyric acid 94.1% with the optimum parameters of pH 3.0, 19.8 % activated carbon weight, 40 oC, 9.5 h incubation time and 179.9 rpm agitation speed Penerbit UTHM 2018 Article PeerReviewed text en http://eprints.uthm.edu.my/6021/1/AJ%202018%20%28971%29%20Extraction%20of%20volatile%20fatty%20acids%20from%20leachate%20via%20liquid-liquid%20extraction%20and%20adsorption%20method.pdf Razali, Yasmin Syafikah and Tajarudin, Husnul Azan and Daud, Zawawi (2018) Extraction of volatile fatty acids from leachate via liquid-liquid extraction and adsorption method. International Journal of Integrated Engineering, 10 (9). pp. 79-84. ISSN 2229-838X
institution Universiti Tun Hussein Onn Malaysia
building UTHM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tun Hussein Onn Malaysia
content_source UTHM Institutional Repository
url_provider http://eprints.uthm.edu.my/
language English
topic TA170-171 Environmental engineering
spellingShingle TA170-171 Environmental engineering
Razali, Yasmin Syafikah
Tajarudin, Husnul Azan
Daud, Zawawi
Extraction of volatile fatty acids from leachate via liquid-liquid extraction and adsorption method
description Volatile fatty acids (VFAs) are used in wide range of commercially-important chemicals. Treatment of leachate at landfills by fermentation process will produce VFAs (butyric acid, acetic acid, propionic acid, isovaleric acid and isobutyric acid) can be considered as a replacement for petroleum-based VFA due to their degradability, renewability and sustainability. Therefore, separation of VFAs residue after the leachate treatment is important and essential from the point of view of pollution control and recovery of useful material. The aim of this study is to compare the percentage of VFAs extracted between liquid-liquid extraction and adsorption method. The VFAs extracted in this study were acetic and butyric acids produced from the fermentation of leachate using Clostridium butyricum. Response surface methodology (RSM) was used using central composite design (CCD) to optimize the parameters that affect the extraction of acetic and butyric acids. Liquid-liquid extraction using petroleum ether (69/80) with optimum parameters (temperature: 35 oC, pH: 4.8, agitation: 175.4 rpm, incubation time: 16.8 h and volume of treated leachate: 14.1 %) showed that the acetic acid and butyric acid extracted were 28.1% and 88.8% respectively. On the other hand, adsorption method using activated carbon showed the highest extraction percentage of acetic acid, 87.4% and butyric acid 94.1% with the optimum parameters of pH 3.0, 19.8 % activated carbon weight, 40 oC, 9.5 h incubation time and 179.9 rpm agitation speed
format Article
author Razali, Yasmin Syafikah
Tajarudin, Husnul Azan
Daud, Zawawi
author_facet Razali, Yasmin Syafikah
Tajarudin, Husnul Azan
Daud, Zawawi
author_sort Razali, Yasmin Syafikah
title Extraction of volatile fatty acids from leachate via liquid-liquid extraction and adsorption method
title_short Extraction of volatile fatty acids from leachate via liquid-liquid extraction and adsorption method
title_full Extraction of volatile fatty acids from leachate via liquid-liquid extraction and adsorption method
title_fullStr Extraction of volatile fatty acids from leachate via liquid-liquid extraction and adsorption method
title_full_unstemmed Extraction of volatile fatty acids from leachate via liquid-liquid extraction and adsorption method
title_sort extraction of volatile fatty acids from leachate via liquid-liquid extraction and adsorption method
publisher Penerbit UTHM
publishDate 2018
url http://eprints.uthm.edu.my/6021/1/AJ%202018%20%28971%29%20Extraction%20of%20volatile%20fatty%20acids%20from%20leachate%20via%20liquid-liquid%20extraction%20and%20adsorption%20method.pdf
http://eprints.uthm.edu.my/6021/
_version_ 1738581441352040448
score 13.211869

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