Development of biosorbent by immobilizing fungal biomass on carbon nanotubes for removal of textile dyes /
Effluents from dye and textile industries are highly contaminated and toxic to the environment. High concentration of non-biodegradable compounds contributes to increased biochemical oxygen demand (BOD) and chemical oxygen demand (COD) of the wastewater bodies. Dyes found in wastewater from textile...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
Kuala Lumpur :
Kulliyyah of Education, International Islamic University Malaysia,
2017
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| Online Access: | Click here to view 1st 24 pages of the thesis. Members can view fulltext at the specified PCs in the library. |
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| LEADER | 045070000a22003130004500 | ||
|---|---|---|---|
| 008 | 180327s2017 my a f m 000 0 eng d | ||
| 040 | |a UIAM |b eng |e rda | ||
| 041 | |a eng | ||
| 043 | |a a-my--- | ||
| 050 | 0 | 0 | |a TP248.27.M53 |
| 100 | 1 | |a Adebayo, Bello Ibrahim, |e author | |
| 245 | 1 | 0 | |a Development of biosorbent by immobilizing fungal biomass on carbon nanotubes for removal of textile dyes / |c by Bello Ibrahim Adebayo |
| 264 | 1 | |a Kuala Lumpur : |b Kulliyyah of Education, International Islamic University Malaysia, |c 2017 | |
| 300 | |a xv, 119 leaves : |b illustrations ; |c 30cm. | ||
| 336 | |2 rdacontent |a text | ||
| 337 | |2 rdamedia |a unmediated | ||
| 347 | |2 rdaft |a text file |b PDF | ||
| 502 | |a Thesis (MSBTE)--International Islamic University Malaysia, 2017. | ||
| 504 | |a Includes bibliographical references (leaves 105-119). | ||
| 520 | |a Effluents from dye and textile industries are highly contaminated and toxic to the environment. High concentration of non-biodegradable compounds contributes to increased biochemical oxygen demand (BOD) and chemical oxygen demand (COD) of the wastewater bodies. Dyes found in wastewater from textile industries are carcinogenic, mutagenic or teratogenic. Biological processes involving certain bacteria, fungi and activated carbon have been employed in treating wastewater. These methods are either inefficient or ineffective. These complexities necessitates search for new approaches that will offset all the shortcomings of the present solutions to the challenges faced with textile wastewater management. This study produced a new biosorbent by the immobilization of fungal biomass on carbon nanotubes. The new biosorbent is called “carbon nanotubes immobilized biomass (CNTIB)”. The biosorbent was produced by immobilization technique. Firstly, a potential fungal strain, Aspergillus niger was selected on the basis of biomass production and then immobilized on carbon nanotubes. It was found out in this study that fungal biomass was better produced in acidic medium. One-factor-at-a time (OFAT) was employed to determine optimum levels at which the three selected parameters (pH, culture time and agitation rate) would perform. Findings from OFAT showed that the optimum conditions for immobilization are a pH of 5, agitation rate of 150 rpm and a culture time of 5 days. Face Centered Central Composite Design (FCCCD) by Design Expert software 7.0.0 under Response Surface Methodology (RSM) was used for optimization. The Langmuir and Freundlich isotherm models were used in the Isotherm studies. Isotherm studies showed that the experimental data better fitted with the Langmuir isotherm for CNTIB when compared to Freundlich isotherm. The kinetic study however indicated that the biosorption followed the pseudo-second order kinetic model which suggests that chemisorption is most likely the process through which biosorption took place. Optimized conditions for the parameters for biosorption studies (initial dye concentration, biosorbent loading and pH) as well as response were determined. 112.5 mg/L of dye was removed out of an initial dye concentration of 112.5 mg/L, pH 6.5 and a biosorbent loading of 6.5 g/L were found to be the optimum values with a contact time of 6 hours. Coefficient of determination (R2) for biosorption model was 0.8912 while the adjusted R2 was found to be 0.7932. The biosorbent produced was characterized using SEM and FTIR to determine its morphology and available functional groups which would further enhance its biosorption ability. Suitable fungal for immobilization on carbon nanotubes was determined and the new biosorbent, CNTIB produced was thus successfully utilized in the removal of synthetic dye. | ||
| 596 | |a 1 | ||
| 655 | 7 | |a Theses, IIUM local | |
| 690 | |a Dissertations, Academic |x Department of Biotechnology Engineering |z IIUM | ||
| 710 | 2 | |a International Islamic University Malaysia. |b Department of Biotechnology Engineering | |
| 856 | 4 | |u http://studentrepo.iium.edu.my/handle/123456789/4596 |z Click here to view 1st 24 pages of the thesis. Members can view fulltext at the specified PCs in the library. | |
| 900 | |a sbh-aaz-ls-hm | ||
| 999 | |c 440691 |d 471067 | ||
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| 952 | |0 0 |6 TS CDF TP 248.27 M53 A228D 2017 |7 0 |8 THESES |9 856164 |a IIUM |b IIUM |c MULTIMEDIA |g 0.00 |o ts cdf TP 248.27 M53 A228D 2017 |p 11100380844 |r 2019-05-08 |t 1 |v 0.00 |y THESISDIG | ||