Bioregeneration Of Granular Activated Carbon Loaded With Phenol And P-Nitrophenol: Effects Of Physico-Chemical And Biological Factors

Bioregenerasi ditakrifkan sebagai suatu proses yang mana permukaan bahan penjerap tersebut diperbaharui oleh mikroorganisma hidup untuk penjerapan selanjutnya. Kesan kepekatan biojisim teraklimasi, dosej penjerap, jenis butiran karbon teraktif (GAC) dan kepekatan aklimasi biojisim terhadap kecekapan...

Full description

Saved in:

Bibliographic Details
Main Author:	Chan , Poh Ying
Format:	Thesis
Language:	English
Published:	2015
Subjects:	QD1-999 Chemistry
Online Access:	http://eprints.usm.my/31763/1/Chan_Poh_Ying.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-usm-ep.31763
record_format	uketd_dc
spelling	my-usm-ep.317632019-04-12T05:25:39Z Bioregeneration Of Granular Activated Carbon Loaded With Phenol And P-Nitrophenol: Effects Of Physico-Chemical And Biological Factors 2015-09 Chan , Poh Ying QD1-999 Chemistry Bioregenerasi ditakrifkan sebagai suatu proses yang mana permukaan bahan penjerap tersebut diperbaharui oleh mikroorganisma hidup untuk penjerapan selanjutnya. Kesan kepekatan biojisim teraklimasi, dosej penjerap, jenis butiran karbon teraktif (GAC) dan kepekatan aklimasi biojisim terhadap kecekapan dan kadar bioregenerasi GAC yang termuat dengan fenol dan p-nitrofenol (PNP) dikaji dengan menentukan jumlah substrat terjerap dan kepekatan substrat baki mengikut masa di bawah pendekatan penjerapan dan biodegradasi secara berturutan. Min kecekapan bioregenerasi bagi GAC termuat fenol dan PNP masing-masing didapati bernilai 78 ± 2 % dan 77 ± 1 %. Keputusan kajian menunjukkan bahawa peningkatan kepekatan biojisim teraklimasi dan dosej penjerap tidak mempengaruhi kecekapan bioregenerasi bagi GAC termuat dengan fenol dan PNP. Tambahan pula, kecekapan bioregenerasi bagi GAC 830 dan GAC 1240+ yang termuat dengan fenol tidak menunjukkan sebarang perbezaan ketara tetapi kecekapan bioregenerasi bagi GAC 1240+ yang termuat dengan PNP didapati lebih besar berbanding dengan GAC 830 yang termuat dengan PNP. Bioregeneration is defined as a process during which the adsorbent surface is renewed by living microorganisms for further adsorption. The effects of acclimated biomass concentration, adsorbent dosage, type of granular activated carbon (GAC) and biomass acclimation concentration on the efficiency and rate of bioregeneration of GAC loaded with phenol and p-nitrophenol (PNP) were investigated by determining the time courses of adsorbed substrate amount and residual substrate concentration during bioregeneration under the sequential adsorption and biodegradation approach. The mean bioregeneration efficiencies of phenol- and PNP-loaded GAC were found to be 78 ± 2 % and 77 ± 1 %, respectively. The results revealed that increasing the acclimated biomass concentration and adsorbent dosage did not have an observable effect on the bioregeneration efficiencies of phenol- and PNP-loaded GAC. Additionally, bioregeneration efficiencies of phenol-loaded GAC 830 and GAC 1240+ did not show any observable difference but the bioregeneration efficiency of PNP-loaded GAC 1240+ was greater than that of PNP-loaded GAC 830. 2015-09 Thesis http://eprints.usm.my/31763/ http://eprints.usm.my/31763/1/Chan_Poh_Ying.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Sains Kimia
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QD1-999 Chemistry
spellingShingle	QD1-999 Chemistry Chan , Poh Ying Bioregeneration Of Granular Activated Carbon Loaded With Phenol And P-Nitrophenol: Effects Of Physico-Chemical And Biological Factors
description	Bioregenerasi ditakrifkan sebagai suatu proses yang mana permukaan bahan penjerap tersebut diperbaharui oleh mikroorganisma hidup untuk penjerapan selanjutnya. Kesan kepekatan biojisim teraklimasi, dosej penjerap, jenis butiran karbon teraktif (GAC) dan kepekatan aklimasi biojisim terhadap kecekapan dan kadar bioregenerasi GAC yang termuat dengan fenol dan p-nitrofenol (PNP) dikaji dengan menentukan jumlah substrat terjerap dan kepekatan substrat baki mengikut masa di bawah pendekatan penjerapan dan biodegradasi secara berturutan. Min kecekapan bioregenerasi bagi GAC termuat fenol dan PNP masing-masing didapati bernilai 78 ± 2 % dan 77 ± 1 %. Keputusan kajian menunjukkan bahawa peningkatan kepekatan biojisim teraklimasi dan dosej penjerap tidak mempengaruhi kecekapan bioregenerasi bagi GAC termuat dengan fenol dan PNP. Tambahan pula, kecekapan bioregenerasi bagi GAC 830 dan GAC 1240+ yang termuat dengan fenol tidak menunjukkan sebarang perbezaan ketara tetapi kecekapan bioregenerasi bagi GAC 1240+ yang termuat dengan PNP didapati lebih besar berbanding dengan GAC 830 yang termuat dengan PNP. Bioregeneration is defined as a process during which the adsorbent surface is renewed by living microorganisms for further adsorption. The effects of acclimated biomass concentration, adsorbent dosage, type of granular activated carbon (GAC) and biomass acclimation concentration on the efficiency and rate of bioregeneration of GAC loaded with phenol and p-nitrophenol (PNP) were investigated by determining the time courses of adsorbed substrate amount and residual substrate concentration during bioregeneration under the sequential adsorption and biodegradation approach. The mean bioregeneration efficiencies of phenol- and PNP-loaded GAC were found to be 78 ± 2 % and 77 ± 1 %, respectively. The results revealed that increasing the acclimated biomass concentration and adsorbent dosage did not have an observable effect on the bioregeneration efficiencies of phenol- and PNP-loaded GAC. Additionally, bioregeneration efficiencies of phenol-loaded GAC 830 and GAC 1240+ did not show any observable difference but the bioregeneration efficiency of PNP-loaded GAC 1240+ was greater than that of PNP-loaded GAC 830.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Chan , Poh Ying
author_facet	Chan , Poh Ying
author_sort	Chan , Poh Ying
title	Bioregeneration Of Granular Activated Carbon Loaded With Phenol And P-Nitrophenol: Effects Of Physico-Chemical And Biological Factors
title_short	Bioregeneration Of Granular Activated Carbon Loaded With Phenol And P-Nitrophenol: Effects Of Physico-Chemical And Biological Factors
title_full	Bioregeneration Of Granular Activated Carbon Loaded With Phenol And P-Nitrophenol: Effects Of Physico-Chemical And Biological Factors
title_fullStr	Bioregeneration Of Granular Activated Carbon Loaded With Phenol And P-Nitrophenol: Effects Of Physico-Chemical And Biological Factors
title_full_unstemmed	Bioregeneration Of Granular Activated Carbon Loaded With Phenol And P-Nitrophenol: Effects Of Physico-Chemical And Biological Factors
title_sort	bioregeneration of granular activated carbon loaded with phenol and p-nitrophenol: effects of physico-chemical and biological factors
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Kimia
publishDate	2015
url	http://eprints.usm.my/31763/1/Chan_Poh_Ying.pdf
_version_	1747820486078758912

Bioregeneration Of Granular Activated Carbon Loaded With Phenol And P-Nitrophenol: Effects Of Physico-Chemical And Biological Factors

Similar Items