Mercury removal from wastewater using palm oil fuel ash

Palm oil fuel ashes (POFA) were used as the adsorbents for the removal of Hg II) ions from wastewater. From the preliminary experimental results, it shows that the POFA had good adsorption capability for Hg (II) ions. Initially, five factors were screened using 25-1 factorial analysis in batch mode....

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Main Authors:	Imla Syafiqah, Mohd Salleh, Nor Akmalina, Mustazar, Hafizuddin, Wan Yussof
Format:	Conference or Workshop Item
Language:	English
Published:	EDP Sciences 2018
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/20689/ http://umpir.ump.edu.my/id/eprint/20689/ http://umpir.ump.edu.my/id/eprint/20689/1/Mercury%20Removal%20from%20Wastewater%20Using%20Palm%20Oil%20Fuel%20Ash-fkksa-2018.pdf

id	ump-20689
recordtype	eprints
spelling	ump-206892018-03-06T07:38:41Z http://umpir.ump.edu.my/id/eprint/20689/ Mercury removal from wastewater using palm oil fuel ash Imla Syafiqah, Mohd Salleh Nor Akmalina, Mustazar Hafizuddin, Wan Yussof TP Chemical technology Palm oil fuel ashes (POFA) were used as the adsorbents for the removal of Hg II) ions from wastewater. From the preliminary experimental results, it shows that the POFA had good adsorption capability for Hg (II) ions. Initially, five factors were screened using 25-1 factorial analysis in batch mode. From these factors, only two of them gave the significant effect which are contact time and agitation speed. Both also have obtained a maximum point which is likely to be the optimum point and possible for the optimization process. This study aims to optimize these two variables (contact time and agitation speed) using central composite design (CCD) which is a subset of response surface methodology (RSM). Quadratic model was developed for Hg (II) percentage removals. A 22 factorial CCD was used to get the mutual interaction between variables. The optimum adsorption conditions were obtained at contact time of 5 hr and agitation speed of 150 rpm with desirability of 0.95. At these optimum points, the mercury removal efficiency was calculated at 98.93 %. Based on the predicted and experimental results presented, the experimental values were in good agreement with the predicted values proposed by the model with an error less than 5 % and proved to be an adequate model. The results indicated that POFA has the potential to be used as an adsorbent for the removal of Hg (II) from aqueous environments due to its significant adsorption capacity and naturally abundance at low cost value. EDP Sciences 2018 Conference or Workshop Item PeerReviewed application/pdf en cc_by http://umpir.ump.edu.my/id/eprint/20689/1/Mercury%20Removal%20from%20Wastewater%20Using%20Palm%20Oil%20Fuel%20Ash-fkksa-2018.pdf Imla Syafiqah, Mohd Salleh and Nor Akmalina, Mustazar and Hafizuddin, Wan Yussof (2018) Mercury removal from wastewater using palm oil fuel ash. In: MATEC Web of Conferences: Malaysia Technical Universities Conference on Engineering and Technology (MUCET 2017), 6-7 December 2017 , Penang, Malaysia. pp. 1-5., 150 (02007). ISSN 2261-236X https://doi.org/10.1051/matecconf/201815002007
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Imla Syafiqah, Mohd Salleh Nor Akmalina, Mustazar Hafizuddin, Wan Yussof Mercury removal from wastewater using palm oil fuel ash
description	Palm oil fuel ashes (POFA) were used as the adsorbents for the removal of Hg II) ions from wastewater. From the preliminary experimental results, it shows that the POFA had good adsorption capability for Hg (II) ions. Initially, five factors were screened using 25-1 factorial analysis in batch mode. From these factors, only two of them gave the significant effect which are contact time and agitation speed. Both also have obtained a maximum point which is likely to be the optimum point and possible for the optimization process. This study aims to optimize these two variables (contact time and agitation speed) using central composite design (CCD) which is a subset of response surface methodology (RSM). Quadratic model was developed for Hg (II) percentage removals. A 22 factorial CCD was used to get the mutual interaction between variables. The optimum adsorption conditions were obtained at contact time of 5 hr and agitation speed of 150 rpm with desirability of 0.95. At these optimum points, the mercury removal efficiency was calculated at 98.93 %. Based on the predicted and experimental results presented, the experimental values were in good agreement with the predicted values proposed by the model with an error less than 5 % and proved to be an adequate model. The results indicated that POFA has the potential to be used as an adsorbent for the removal of Hg (II) from aqueous environments due to its significant adsorption capacity and naturally abundance at low cost value.
format	Conference or Workshop Item
author	Imla Syafiqah, Mohd Salleh Nor Akmalina, Mustazar Hafizuddin, Wan Yussof
author_facet	Imla Syafiqah, Mohd Salleh Nor Akmalina, Mustazar Hafizuddin, Wan Yussof
author_sort	Imla Syafiqah, Mohd Salleh
title	Mercury removal from wastewater using palm oil fuel ash
title_short	Mercury removal from wastewater using palm oil fuel ash
title_full	Mercury removal from wastewater using palm oil fuel ash
title_fullStr	Mercury removal from wastewater using palm oil fuel ash
title_full_unstemmed	Mercury removal from wastewater using palm oil fuel ash
title_sort	mercury removal from wastewater using palm oil fuel ash
publisher	EDP Sciences
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/20689/ http://umpir.ump.edu.my/id/eprint/20689/ http://umpir.ump.edu.my/id/eprint/20689/1/Mercury%20Removal%20from%20Wastewater%20Using%20Palm%20Oil%20Fuel%20Ash-fkksa-2018.pdf
first_indexed	2023-09-18T22:29:59Z
last_indexed	2023-09-18T22:29:59Z
_version_	1777416220557967360

Mercury removal from wastewater using palm oil fuel ash

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