Optimization of Biological pH Treatment for Acidic Palm Oil Mill Effluent

Palm oil mill effluent (POME) has been known as organic waste product from palm oil production which is featured by low pH of 3.5-4.5, high value of biological demand (BOD), chemical oxygen demand (COD) and suspended solids. It is mandatory for all palm oil mills to treat their wastewaters to an acc...

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Main Authors: N., Zainol, Anis Sakinah, Lokman Hakim
Format: Conference or Workshop Item
Language:English
Published: 2014
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Online Access:http://umpir.ump.edu.my/id/eprint/7565/1/Optimization_of_Biological_pH_Treatment_for_Acidic_Palm_Oil_Mill_Effluent.pdf
http://umpir.ump.edu.my/id/eprint/7565/
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spelling my.ump.umpir.75652018-01-15T04:17:46Z http://umpir.ump.edu.my/id/eprint/7565/ Optimization of Biological pH Treatment for Acidic Palm Oil Mill Effluent N., Zainol Anis Sakinah, Lokman Hakim TP Chemical technology Palm oil mill effluent (POME) has been known as organic waste product from palm oil production which is featured by low pH of 3.5-4.5, high value of biological demand (BOD), chemical oxygen demand (COD) and suspended solids. It is mandatory for all palm oil mills to treat their wastewaters to an acceptable level before it is allowed to be discharged into the water courses. Biological treatment appears less cost than chemical and physical methods and have low environmental impact. The purpose of this study was to optimize the factors (temperature and agitation) which were influencing biological pH treatment of acidic POME. Acidic POME was collected from a nearby palm oil mill whereas soil mixed culture was obtained from soil near the plants root system. Soil mixed culture was acclimatized with POME as inoculum. Experimental design table was prepared based on Response Surface Method (RSM) and 13 experimental runs were conducted according to Center Composite Design (CCD) set up. The experimental results were optimized using Design Expert software (Version 6.0). The proposed model from the software showed proportional relationship between pH value and both studied factors. Temperature and agitation had individual significant influence on pH value. Based on the analysis, the suggested optimum conditions were at temperature of 32.50℃ and agitation speed of 125 rpm. The expected pH value at these conditions was at 8.03. Later, validation experiment was conducted at the suggested optimum conditions and the error between the actual and expected pH value was at 2.29%. Low errors from the validation experiments (<5%) proved that biological pH treatment for acidic POME could be represented by using the proposed model. This study showed that application of this biological process could be an effective solution for acidic POME treatment. 2014 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7565/1/Optimization_of_Biological_pH_Treatment_for_Acidic_Palm_Oil_Mill_Effluent.pdf N., Zainol and Anis Sakinah, Lokman Hakim (2014) Optimization of Biological pH Treatment for Acidic Palm Oil Mill Effluent. In: International Conference on Innovative Trends in Multidisciplinary Academic Research, 20-21 October 2014 , Turkey. . (Unpublished)
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
N., Zainol
Anis Sakinah, Lokman Hakim
Optimization of Biological pH Treatment for Acidic Palm Oil Mill Effluent
description Palm oil mill effluent (POME) has been known as organic waste product from palm oil production which is featured by low pH of 3.5-4.5, high value of biological demand (BOD), chemical oxygen demand (COD) and suspended solids. It is mandatory for all palm oil mills to treat their wastewaters to an acceptable level before it is allowed to be discharged into the water courses. Biological treatment appears less cost than chemical and physical methods and have low environmental impact. The purpose of this study was to optimize the factors (temperature and agitation) which were influencing biological pH treatment of acidic POME. Acidic POME was collected from a nearby palm oil mill whereas soil mixed culture was obtained from soil near the plants root system. Soil mixed culture was acclimatized with POME as inoculum. Experimental design table was prepared based on Response Surface Method (RSM) and 13 experimental runs were conducted according to Center Composite Design (CCD) set up. The experimental results were optimized using Design Expert software (Version 6.0). The proposed model from the software showed proportional relationship between pH value and both studied factors. Temperature and agitation had individual significant influence on pH value. Based on the analysis, the suggested optimum conditions were at temperature of 32.50℃ and agitation speed of 125 rpm. The expected pH value at these conditions was at 8.03. Later, validation experiment was conducted at the suggested optimum conditions and the error between the actual and expected pH value was at 2.29%. Low errors from the validation experiments (<5%) proved that biological pH treatment for acidic POME could be represented by using the proposed model. This study showed that application of this biological process could be an effective solution for acidic POME treatment.
format Conference or Workshop Item
author N., Zainol
Anis Sakinah, Lokman Hakim
author_facet N., Zainol
Anis Sakinah, Lokman Hakim
author_sort N., Zainol
title Optimization of Biological pH Treatment for Acidic Palm Oil Mill Effluent
title_short Optimization of Biological pH Treatment for Acidic Palm Oil Mill Effluent
title_full Optimization of Biological pH Treatment for Acidic Palm Oil Mill Effluent
title_fullStr Optimization of Biological pH Treatment for Acidic Palm Oil Mill Effluent
title_full_unstemmed Optimization of Biological pH Treatment for Acidic Palm Oil Mill Effluent
title_sort optimization of biological ph treatment for acidic palm oil mill effluent
publishDate 2014
url http://umpir.ump.edu.my/id/eprint/7565/1/Optimization_of_Biological_pH_Treatment_for_Acidic_Palm_Oil_Mill_Effluent.pdf
http://umpir.ump.edu.my/id/eprint/7565/
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