Phytoremediation of Soil Impacted With Hydrocarbons and Heavy Metals

Phytoremediation is the application of plants and their associated microorganisms to degrade, sequester or contain contaminants in soil. Four plant species namely Kaempheria rotunda, Jatropha podagrica, Asystasia coromandeliana and Phyllanthus amarus were evaluated for their ability to survive and...

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Main Author:	Aisyaidil, Hanri
Format:	Thesis
Language:	English
Published:	2014
Subjects:	Q Science (General) QD Chemistry
Online Access:	http://ir.unimas.my/id/eprint/26724/1/Aisyaidil%20Binti%20Hanri%20ft.pdf
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id	my-unimas-ir.26724
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spelling	my-unimas-ir.267242023-03-27T03:12:57Z Phytoremediation of Soil Impacted With Hydrocarbons and Heavy Metals 2014 Aisyaidil, Hanri Q Science (General) QD Chemistry Phytoremediation is the application of plants and their associated microorganisms to degrade, sequester or contain contaminants in soil. Four plant species namely Kaempheria rotunda, Jatropha podagrica, Asystasia coromandeliana and Phyllanthus amarus were evaluated for their ability to survive and adapt in soil contaminated with heavy metals and mixture of aliphatic hydrocarbons and polycyclic aromatic hydrocarbons (PAHs). These plants were also evaluated for the ability as metal hyperaccumulator and their ability to degrade aliphatic hydrocarbons and PAHs in their rhizosphere. Bacteria were isolated fTom the soil rhizosphere to determine whether degradation of aliphatic hydrocarbons and PAHs are related to the number of bacteria in the rhizosphere. P. amanls could not survive in soil contaminated with heavy metals and a mixture of aliphatic hydrocarbons and polycyclic aromatic hydrocarbons (PAHs). The bioconcentration factor (BCF) of the plants showed that K. rotunda is more potential as cadmium and zinc accumulator with BCF values of 5.28 and 0.90, respectively. Addition of ethylenediaminetetraacetic acid (EDTA) as chelating/mobilizing agent only affect the accumulation of chromium in J. podagrica, and chromium accumulated was 2-3 times higher in EDTA-treated plants compared to non-EDT A-treated plants. The colony forming unit present in the rhizosphere soil of K. rotunda, .J. podagrica and A. coromandeliana were 9.6 x 10\ 9.3 x 104 and 3.8 x 104 , respectively. K. rotunda, J. podagrica, A. coromandeliana planted in soil contaminated with aliphatic hydrocarbons and PAHs have shown the ability to degrade hydrocarbons in their rhizosphere. K. rotunda showed better potential for the degradation of aliphatic hydrocarbons ,in the rhizosphere due to the high number of bacteria present in the rhizosphere and consistently decreased concentration of aliphatic hydrocarbons throughout the experimental period. A. coromandeliana, in the other hand poorly degraded aliphatic hydrocarbons, although the plant highly adapted in the contaminated soil. However, A. coromandeliana showed potential to degrade PAHs in the rhizosphere, where dissipation of PAHs in soil planted with A. coromandeliana was in the range of 81.82 - 100%. Moreover, A. coromandeliana showed higher tolerance to PAHs compared to other plants tested, as well as fibrous root that could contribute good maintenance of the rhizosphere. Universiti Malaysia Sarawak (UNIMAS) 2014 Thesis http://ir.unimas.my/id/eprint/26724/ http://ir.unimas.my/id/eprint/26724/1/Aisyaidil%20Binti%20Hanri%20ft.pdf text en validuser masters Universiti Malaysia Sarawak Faculty of Resource Science and Technology
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English
topic	Q Science (General) QD Chemistry
spellingShingle	Q Science (General) QD Chemistry Aisyaidil, Hanri Phytoremediation of Soil Impacted With Hydrocarbons and Heavy Metals
description	Phytoremediation is the application of plants and their associated microorganisms to degrade, sequester or contain contaminants in soil. Four plant species namely Kaempheria rotunda, Jatropha podagrica, Asystasia coromandeliana and Phyllanthus amarus were evaluated for their ability to survive and adapt in soil contaminated with heavy metals and mixture of aliphatic hydrocarbons and polycyclic aromatic hydrocarbons (PAHs). These plants were also evaluated for the ability as metal hyperaccumulator and their ability to degrade aliphatic hydrocarbons and PAHs in their rhizosphere. Bacteria were isolated fTom the soil rhizosphere to determine whether degradation of aliphatic hydrocarbons and PAHs are related to the number of bacteria in the rhizosphere. P. amanls could not survive in soil contaminated with heavy metals and a mixture of aliphatic hydrocarbons and polycyclic aromatic hydrocarbons (PAHs). The bioconcentration factor (BCF) of the plants showed that K. rotunda is more potential as cadmium and zinc accumulator with BCF values of 5.28 and 0.90, respectively. Addition of ethylenediaminetetraacetic acid (EDTA) as chelating/mobilizing agent only affect the accumulation of chromium in J. podagrica, and chromium accumulated was 2-3 times higher in EDTA-treated plants compared to non-EDT A-treated plants. The colony forming unit present in the rhizosphere soil of K. rotunda, .J. podagrica and A. coromandeliana were 9.6 x 10\ 9.3 x 104 and 3.8 x 104 , respectively. K. rotunda, J. podagrica, A. coromandeliana planted in soil contaminated with aliphatic hydrocarbons and PAHs have shown the ability to degrade hydrocarbons in their rhizosphere. K. rotunda showed better potential for the degradation of aliphatic hydrocarbons ,in the rhizosphere due to the high number of bacteria present in the rhizosphere and consistently decreased concentration of aliphatic hydrocarbons throughout the experimental period. A. coromandeliana, in the other hand poorly degraded aliphatic hydrocarbons, although the plant highly adapted in the contaminated soil. However, A. coromandeliana showed potential to degrade PAHs in the rhizosphere, where dissipation of PAHs in soil planted with A. coromandeliana was in the range of 81.82 - 100%. Moreover, A. coromandeliana showed higher tolerance to PAHs compared to other plants tested, as well as fibrous root that could contribute good maintenance of the rhizosphere.
format	Thesis
qualification_level	Master's degree
author	Aisyaidil, Hanri
author_facet	Aisyaidil, Hanri
author_sort	Aisyaidil, Hanri
title	Phytoremediation of Soil Impacted With Hydrocarbons and Heavy Metals
title_short	Phytoremediation of Soil Impacted With Hydrocarbons and Heavy Metals
title_full	Phytoremediation of Soil Impacted With Hydrocarbons and Heavy Metals
title_fullStr	Phytoremediation of Soil Impacted With Hydrocarbons and Heavy Metals
title_full_unstemmed	Phytoremediation of Soil Impacted With Hydrocarbons and Heavy Metals
title_sort	phytoremediation of soil impacted with hydrocarbons and heavy metals
granting_institution	Universiti Malaysia Sarawak
granting_department	Faculty of Resource Science and Technology
publishDate	2014
url	http://ir.unimas.my/id/eprint/26724/1/Aisyaidil%20Binti%20Hanri%20ft.pdf
_version_	1783728323662184448

Phytoremediation of Soil Impacted With Hydrocarbons and Heavy Metals

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