The potential of agricultural biomass for adsorption of humic substances from tropical black water

The presence of humic substances in water affects the water quality as well as its treatability. They are removed using the conventional coagulation approach in the water treatment system. Adsorption using alternative adsorbents from agricultural wastes has received increasing attention due to their...

Full description

Saved in:

Bibliographic Details
Main Author:	Mohd Irwan Lu, Nurul Aida Lu
Format:	Thesis
Language:	English
Published:	2015
Subjects:	GE Environmental Sciences S Agriculture (General)
Online Access:	http://ir.unimas.my/id/eprint/10937/2/Nurul%20Aida%20Lu.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-unimas-ir.10937
record_format	uketd_dc
spelling	my-unimas-ir.109372023-03-28T06:12:15Z The potential of agricultural biomass for adsorption of humic substances from tropical black water 2015 Mohd Irwan Lu, Nurul Aida Lu GE Environmental Sciences S Agriculture (General) The presence of humic substances in water affects the water quality as well as its treatability. They are removed using the conventional coagulation approach in the water treatment system. Adsorption using alternative adsorbents from agricultural wastes has received increasing attention due to their advantages of low cost, abundant availability and environmental friendly. To the best of our understanding, application of biosorbent for removal of humic substances from water remains scarce. Hence, in this study, we investigated the adsorption potential of various indigenous agriculture biomasses for removal of humic substances from peat swamp runoff. The adsorption isotherms were further evaluated using the standard humic acid. The adsorption potential of untreated biomass was less promising (< 45 %). With citric acid pretreatment, the adsorption capacity was significantly improved especially for groundnut shell, rice husk and sugarcane bagasse where the percentage removal attained were 63.81%, 58.70% and 57.48%, respectively. It was observed that various biomasses experienced delignification, dissolution and eventually chemical functionalization to different extents upon treatment. The isotherm models (Langmuir, Freundlich, Dubinin-Radushkevich and Temkin) showed that after treatment, the adsorption capacities was increased up to 4.99 mg/g, 3.93 mg/g and 18.98 mg/g for modified groundnut shell, rice husk and sugarcane bagasse, respectively. Universiti Malaysia Sarawak (UNIMAS) 2015 Thesis http://ir.unimas.my/id/eprint/10937/ http://ir.unimas.my/id/eprint/10937/2/Nurul%20Aida%20Lu.pdf text en validuser masters Universiti Malaysia Sarawak, (UNIMAS) Faculty of Resources Science and Technology
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English
topic	GE Environmental Sciences S Agriculture (General)
spellingShingle	GE Environmental Sciences S Agriculture (General) Mohd Irwan Lu, Nurul Aida Lu The potential of agricultural biomass for adsorption of humic substances from tropical black water
description	The presence of humic substances in water affects the water quality as well as its treatability. They are removed using the conventional coagulation approach in the water treatment system. Adsorption using alternative adsorbents from agricultural wastes has received increasing attention due to their advantages of low cost, abundant availability and environmental friendly. To the best of our understanding, application of biosorbent for removal of humic substances from water remains scarce. Hence, in this study, we investigated the adsorption potential of various indigenous agriculture biomasses for removal of humic substances from peat swamp runoff. The adsorption isotherms were further evaluated using the standard humic acid. The adsorption potential of untreated biomass was less promising (< 45 %). With citric acid pretreatment, the adsorption capacity was significantly improved especially for groundnut shell, rice husk and sugarcane bagasse where the percentage removal attained were 63.81%, 58.70% and 57.48%, respectively. It was observed that various biomasses experienced delignification, dissolution and eventually chemical functionalization to different extents upon treatment. The isotherm models (Langmuir, Freundlich, Dubinin-Radushkevich and Temkin) showed that after treatment, the adsorption capacities was increased up to 4.99 mg/g, 3.93 mg/g and 18.98 mg/g for modified groundnut shell, rice husk and sugarcane bagasse, respectively.
format	Thesis
qualification_level	Master's degree
author	Mohd Irwan Lu, Nurul Aida Lu
author_facet	Mohd Irwan Lu, Nurul Aida Lu
author_sort	Mohd Irwan Lu, Nurul Aida Lu
title	The potential of agricultural biomass for adsorption of humic substances from tropical black water
title_short	The potential of agricultural biomass for adsorption of humic substances from tropical black water
title_full	The potential of agricultural biomass for adsorption of humic substances from tropical black water
title_fullStr	The potential of agricultural biomass for adsorption of humic substances from tropical black water
title_full_unstemmed	The potential of agricultural biomass for adsorption of humic substances from tropical black water
title_sort	potential of agricultural biomass for adsorption of humic substances from tropical black water
granting_institution	Universiti Malaysia Sarawak, (UNIMAS)
granting_department	Faculty of Resources Science and Technology
publishDate	2015
url	http://ir.unimas.my/id/eprint/10937/2/Nurul%20Aida%20Lu.pdf
_version_	1783728091036647424

The potential of agricultural biomass for adsorption of humic substances from tropical black water

Similar Items