Utilisation Of Organic Acids From Anaerobically Treated Palm Oil Mill Effluent With And Without Sludge Recycle For Polyhydroxyalkanoate Production

Two-stage fermentation was carried out in this study where palm oil mill effluent (POME) was used as substrate for volatile fatty acids (VFA) production by continuous anaerobic treatment using a 50 L continuous stirred tank reactor (CSTR). The VFA obtained were then used for polyhydroxyalkanoate...

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Main Author:	Sim , Kean Hong
Format:	Thesis
Language:	English English
Published:	2003
Subjects:	Organic acids Anaerobiosis Plants - Effect of anaerobiosis on
Online Access:	http://psasir.upm.edu.my/id/eprint/11863/1/FSMB_2003_14_A.pdf
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id	my-upm-ir.11863
record_format	uketd_dc
spelling	my-upm-ir.118632012-10-24T07:28:24Z Utilisation Of Organic Acids From Anaerobically Treated Palm Oil Mill Effluent With And Without Sludge Recycle For Polyhydroxyalkanoate Production 2003-04 Sim , Kean Hong Two-stage fermentation was carried out in this study where palm oil mill effluent (POME) was used as substrate for volatile fatty acids (VFA) production by continuous anaerobic treatment using a 50 L continuous stirred tank reactor (CSTR). The VFA obtained were then used for polyhydroxyalkanoate (PHA) production by Ralstonia eutropha ATCC 17699. Three experiments were conducted in anaerobic treatment of POME until steady state was achieved, i.e. (1) pH 6.5, 30"C, 80 rpm, sludge/POME ratio 1: 1, hydraulic retention time (HRT) 4 days, without sludge recycle and POME was fed continuously; (2) pH 6.5, 30"C, 100 rpm, sludge/POME ratio 1:1, HRT 4 days, without sludge recycle and POME was fed manually three times a day; (3) pH 5.5, 30°C, 150 rpm, sludge/POME ratio 3:7, HRT 4 days, SRT 8.2 days with partially sludge recycled (500 mL) and POME was fed manually three times a day. The major acids produced were acetic, propionic and butyric acids. The highest amount of VF A obtained were 15.36 g/L in 2nd experiment, followed by 1st experiment with 15.04 g/L and finally 1023 g/L in 3rd experiment For 2nd and 3rd experiments, COD removal was low which values at 12 5% and 31 1 % while BOD yield were 58 3% and 43.4% respectively. Organic acids Anaerobiosis Plants - Effect of anaerobiosis on 2003-04 Thesis http://psasir.upm.edu.my/id/eprint/11863/ http://psasir.upm.edu.my/id/eprint/11863/1/FSMB_2003_14_A.pdf application/pdf en public masters Universiti Putra Malaysia Organic acids Anaerobiosis Plants - Effect of anaerobiosis on Faculty of Food Science and Biotechnology English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Organic acids Anaerobiosis Plants - Effect of anaerobiosis on
spellingShingle	Organic acids Anaerobiosis Plants - Effect of anaerobiosis on Sim , Kean Hong Utilisation Of Organic Acids From Anaerobically Treated Palm Oil Mill Effluent With And Without Sludge Recycle For Polyhydroxyalkanoate Production
description	Two-stage fermentation was carried out in this study where palm oil mill effluent (POME) was used as substrate for volatile fatty acids (VFA) production by continuous anaerobic treatment using a 50 L continuous stirred tank reactor (CSTR). The VFA obtained were then used for polyhydroxyalkanoate (PHA) production by Ralstonia eutropha ATCC 17699. Three experiments were conducted in anaerobic treatment of POME until steady state was achieved, i.e. (1) pH 6.5, 30"C, 80 rpm, sludge/POME ratio 1: 1, hydraulic retention time (HRT) 4 days, without sludge recycle and POME was fed continuously; (2) pH 6.5, 30"C, 100 rpm, sludge/POME ratio 1:1, HRT 4 days, without sludge recycle and POME was fed manually three times a day; (3) pH 5.5, 30°C, 150 rpm, sludge/POME ratio 3:7, HRT 4 days, SRT 8.2 days with partially sludge recycled (500 mL) and POME was fed manually three times a day. The major acids produced were acetic, propionic and butyric acids. The highest amount of VF A obtained were 15.36 g/L in 2nd experiment, followed by 1st experiment with 15.04 g/L and finally 1023 g/L in 3rd experiment For 2nd and 3rd experiments, COD removal was low which values at 12 5% and 31 1 % while BOD yield were 58 3% and 43.4% respectively.
format	Thesis
qualification_level	Master's degree
author	Sim , Kean Hong
author_facet	Sim , Kean Hong
author_sort	Sim , Kean Hong
title	Utilisation Of Organic Acids From Anaerobically Treated Palm Oil Mill Effluent With And Without Sludge Recycle For Polyhydroxyalkanoate Production
title_short	Utilisation Of Organic Acids From Anaerobically Treated Palm Oil Mill Effluent With And Without Sludge Recycle For Polyhydroxyalkanoate Production
title_full	Utilisation Of Organic Acids From Anaerobically Treated Palm Oil Mill Effluent With And Without Sludge Recycle For Polyhydroxyalkanoate Production
title_fullStr	Utilisation Of Organic Acids From Anaerobically Treated Palm Oil Mill Effluent With And Without Sludge Recycle For Polyhydroxyalkanoate Production
title_full_unstemmed	Utilisation Of Organic Acids From Anaerobically Treated Palm Oil Mill Effluent With And Without Sludge Recycle For Polyhydroxyalkanoate Production
title_sort	utilisation of organic acids from anaerobically treated palm oil mill effluent with and without sludge recycle for polyhydroxyalkanoate production
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Food Science and Biotechnology
publishDate	2003
url	http://psasir.upm.edu.my/id/eprint/11863/1/FSMB_2003_14_A.pdf
_version_	1747811275661901824

Utilisation Of Organic Acids From Anaerobically Treated Palm Oil Mill Effluent With And Without Sludge Recycle For Polyhydroxyalkanoate Production

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