BIOSORPTION AND BIOACCUMULATION OF RARE EARTH ELEMENTS (LANTHANIDES) USING MACROALGAE
The potential bioremediation of REEs by macroalgae (P. boryana and G. manilaensis) in batch and continuous fixed bed column was studied. In live seaweed the order of REEs accumulation was LREE (La) > MREE (Ce) > HREE (Yb). Salinity significantly influenced REEs uptake and growth of P. boryana...
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my-umt-ir.-160242022-01-19T08:19:10Z BIOSORPTION AND BIOACCUMULATION OF RARE EARTH ELEMENTS (LANTHANIDES) USING MACROALGAE SITI MASHITAH BINTI MOHAMMAD The potential bioremediation of REEs by macroalgae (P. boryana and G. manilaensis) in batch and continuous fixed bed column was studied. In live seaweed the order of REEs accumulation was LREE (La) > MREE (Ce) > HREE (Yb). Salinity significantly influenced REEs uptake and growth of P. boryana and G. manilaensis, where the highest accumulation of REEs occurred at the lowest salinity (20 psu) for all REEs studied. High DGR inhibition was recorded at salinity of 20 psu, followed by 25 psu and 30 psu. Studies on dried biomass showed that removal efficiency was dependant on pH, rpm, biomass dosage and contact time for both seaweeds. The removal efficiency of La, Ce and Yb increased from pH 2 to pH 5 and increased with increasing biomass dosage for both seaweeds. The longer the contact time, the greater the removal efficiency until the equilibrium state was reached. UNIVERSITI MALAYSIA TERENGGANU 2020-02 Thesis en http://umt-ir.umt.edu.my:8080/handle/123456789/16024 http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/16024/1/Abstract.pdf 5dd1104c8027166adc776700f1f28172 http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/16024/2/SITI%20MASHITAH%20BINTI%20MOHAMMAD.pdf ad4cdfbf7425e1df709f7ff43612dc25 http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/16024/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 |
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Universiti Malaysia Terengganu |
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UMT Repository System |
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English |
description |
The potential bioremediation of REEs by macroalgae (P. boryana and G. manilaensis) in batch and continuous fixed bed column was studied. In live seaweed the order of REEs accumulation was LREE (La) > MREE (Ce) > HREE (Yb). Salinity significantly influenced REEs uptake and growth of P. boryana and G. manilaensis, where the highest accumulation of REEs occurred at the lowest salinity (20 psu) for all REEs studied. High DGR inhibition was recorded at salinity of 20 psu, followed by 25 psu and 30 psu. Studies on dried biomass showed that removal efficiency was dependant on pH, rpm, biomass dosage and contact time for both seaweeds. The removal efficiency of La, Ce and Yb increased from pH 2 to pH 5 and increased with increasing biomass dosage for both seaweeds. The longer the contact time, the greater the removal efficiency until the equilibrium state was reached. |
format |
Thesis |
author |
SITI MASHITAH BINTI MOHAMMAD |
spellingShingle |
SITI MASHITAH BINTI MOHAMMAD BIOSORPTION AND BIOACCUMULATION OF RARE EARTH ELEMENTS (LANTHANIDES) USING MACROALGAE |
author_facet |
SITI MASHITAH BINTI MOHAMMAD |
author_sort |
SITI MASHITAH BINTI MOHAMMAD |
title |
BIOSORPTION AND BIOACCUMULATION OF RARE EARTH ELEMENTS (LANTHANIDES) USING MACROALGAE |
title_short |
BIOSORPTION AND BIOACCUMULATION OF RARE EARTH ELEMENTS (LANTHANIDES) USING MACROALGAE |
title_full |
BIOSORPTION AND BIOACCUMULATION OF RARE EARTH ELEMENTS (LANTHANIDES) USING MACROALGAE |
title_fullStr |
BIOSORPTION AND BIOACCUMULATION OF RARE EARTH ELEMENTS (LANTHANIDES) USING MACROALGAE |
title_full_unstemmed |
BIOSORPTION AND BIOACCUMULATION OF RARE EARTH ELEMENTS (LANTHANIDES) USING MACROALGAE |
title_sort |
biosorption and bioaccumulation of rare earth elements (lanthanides) using macroalgae |
granting_institution |
UNIVERSITI MALAYSIA TERENGGANU |
url |
http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/16024/1/Abstract.pdf http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/16024/2/SITI%20MASHITAH%20BINTI%20MOHAMMAD.pdf |
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