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Reducing heavy metals mobility in soil by natural plant extract

In this study, the incubation experiment was conducted to assess the effect of plant extract (TM) application on the immobilization of Pb, Zn, Cr, Cu and Cd in soil. Soils was amended with 1 %, 2 %, 5 %, and 10 % of TM and incubated for 30 days. As a conventional organic stabilizer, rice husk derive...

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Main Author: Ng, Teck Bin
Format: Final Year Project / Dissertation / Thesis
Published: 2022
Subjects:
SB Plant culture
T Technology (General)
TD Environmental technology. Sanitary engineering
Online Access:http://eprints.utar.edu.my/5703/1/fyp_EV_2022_NTB.pdf
http://eprints.utar.edu.my/5703/
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spelling my-utar-eprints.57032023-08-16T12:02:43Z Reducing heavy metals mobility in soil by natural plant extract Ng, Teck Bin SB Plant culture T Technology (General) TD Environmental technology. Sanitary engineering In this study, the incubation experiment was conducted to assess the effect of plant extract (TM) application on the immobilization of Pb, Zn, Cr, Cu and Cd in soil. Soils was amended with 1 %, 2 %, 5 %, and 10 % of TM and incubated for 30 days. As a conventional organic stabilizer, rice husk derived biochar (RHB) had been applied in this experiment for comparison purpose. The fractions of each heavy metals (HMs) in soil were evaluated by Tessier’s sequential extraction procedure. The finding suggested that RHB had significantly increased the soil pH, SOM, and TOC while TM performed a negligible effect on soil pH and SOM but remarkably improved the soil TOC. Both stabilizers were found containing abundant of O-containing and N-containing functional groups by using ATR-FTIR. TM had successfully decreased the mobility of Cd and Zn by 11.28 % to 17.53 % and 4.77 % to 7.92 % with the increment of dosage. However, an increasing trend of Cu and Pb mobility in soil was observed after the application of TM. The mobility of Cu and Pb increased by 5.66 % to 8.20 % and 7.74 % to 10.84 % respectively. There was also found a fluctuated effect on Cr mobility with the increase of TM dosage and the difference was ranging from -0.88 % to 1.16 % when compared to control sample. It might suggest that TM was more suitable for Cd and Zn contaminated soil. In comparison, the performance of RHB was found more stable than TM, in which had decreased the mobility of Cd, Zn, Cr, Cu and Pb by ranging from 1.86 to 9.53 %, 8.77 to 11.96 %, 5.46 to 6.87 %, 2.94 to 13.97 %, and 1.16 to 7.48% respectively. 2022-01 Final Year Project / Dissertation / Thesis NonPeerReviewed application/pdf http://eprints.utar.edu.my/5703/1/fyp_EV_2022_NTB.pdf Ng, Teck Bin (2022) Reducing heavy metals mobility in soil by natural plant extract. Final Year Project, UTAR. http://eprints.utar.edu.my/5703/
institution Universiti Tunku Abdul Rahman
building UTAR Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tunku Abdul Rahman
content_source UTAR Institutional Repository
url_provider http://eprints.utar.edu.my
topic SB Plant culture
T Technology (General)
TD Environmental technology. Sanitary engineering
spellingShingle SB Plant culture
T Technology (General)
TD Environmental technology. Sanitary engineering
Ng, Teck Bin
Reducing heavy metals mobility in soil by natural plant extract
description In this study, the incubation experiment was conducted to assess the effect of plant extract (TM) application on the immobilization of Pb, Zn, Cr, Cu and Cd in soil. Soils was amended with 1 %, 2 %, 5 %, and 10 % of TM and incubated for 30 days. As a conventional organic stabilizer, rice husk derived biochar (RHB) had been applied in this experiment for comparison purpose. The fractions of each heavy metals (HMs) in soil were evaluated by Tessier’s sequential extraction procedure. The finding suggested that RHB had significantly increased the soil pH, SOM, and TOC while TM performed a negligible effect on soil pH and SOM but remarkably improved the soil TOC. Both stabilizers were found containing abundant of O-containing and N-containing functional groups by using ATR-FTIR. TM had successfully decreased the mobility of Cd and Zn by 11.28 % to 17.53 % and 4.77 % to 7.92 % with the increment of dosage. However, an increasing trend of Cu and Pb mobility in soil was observed after the application of TM. The mobility of Cu and Pb increased by 5.66 % to 8.20 % and 7.74 % to 10.84 % respectively. There was also found a fluctuated effect on Cr mobility with the increase of TM dosage and the difference was ranging from -0.88 % to 1.16 % when compared to control sample. It might suggest that TM was more suitable for Cd and Zn contaminated soil. In comparison, the performance of RHB was found more stable than TM, in which had decreased the mobility of Cd, Zn, Cr, Cu and Pb by ranging from 1.86 to 9.53 %, 8.77 to 11.96 %, 5.46 to 6.87 %, 2.94 to 13.97 %, and 1.16 to 7.48% respectively.
format Final Year Project / Dissertation / Thesis
author Ng, Teck Bin
author_facet Ng, Teck Bin
author_sort Ng, Teck Bin
title Reducing heavy metals mobility in soil by natural plant extract
title_short Reducing heavy metals mobility in soil by natural plant extract
title_full Reducing heavy metals mobility in soil by natural plant extract
title_fullStr Reducing heavy metals mobility in soil by natural plant extract
title_full_unstemmed Reducing heavy metals mobility in soil by natural plant extract
title_sort reducing heavy metals mobility in soil by natural plant extract
publishDate 2022
url http://eprints.utar.edu.my/5703/1/fyp_EV_2022_NTB.pdf
http://eprints.utar.edu.my/5703/
_version_ 1775627980428541952
score 13.211869

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