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399534

Biochemical Approaches for Mitigating heavy metals in Contaminated Soil Ecosystems: Kinetic Evaluation and Phytostablization Strategies

Article

Last updated: 13 Jan 2025

Subjects

-

Tags

Environmental chemistry

Abstract

Soil, a vital component in biosphere, is frequently endangered to superfluity pollutants, particularly heavy metals. Unlike organic pollutants, heavy metals are persistent and cause environmental, health and socio-economic adverse impacts, Consequently, heavy metals removal from soil ecosystem is not only mandatory but also a topic of interest nowadays. This study assessed four biochemical treatments from a kinetic perspective to evaluate their efficacy in reducing heavy metals concentrations and risks in soils cultivated with tomatoes. The processing materials included: (T1) bentonite + rock phosphate+ phosphate dissolving bacteria (Bacillus megatherium), (T2) bentonite + elemental sulfur + Acidithiobacillus sp., (T3) bentonite + elemental sulfur + rock phosphate + Acidithiobacillus sp. + Bacillus megatherium, and (T4) bentonite + kaolinite clay minerals + rock phosphate+ Bacillus megatherium + elemental sulfur + Acidithiobacillus. Furthermore, two untreated controls were represented by cultivated control and uncultivated control soil. The results showed that all kinetic models described the rate of pollutants desorption from the treated soil were succeeded to describe the rate of Zn, Cu and Ni. However, Modified Freundlich equation (MFE) was the best. All treatments significantly reduced heavy metals desorption rates, with T4 emerging as the most effective management practice. Despite, T1 enhanced Zn phytoextraction by tomatoes; However T4 reduced heavy metals accumulation in tomatoes fruits, making it a promising phytostabilization strategy for safe vegetable production. Overall, T4 represents a viable solution for alleviating heavy metals hazard in contaminated agricultural soils.

DOI

10.21608/ejchem.2024.341310.10928

Keywords

Heavy metals, Clay minerals, Remediation, Kinetic studies, Soil contamination, Acidithiobacillus, Bacillus megatherium

Authors

First Name

Doaa

Last Name

Ali

MiddleName

-

Affiliation

Agricultural Microbiology Dept., Agricultural and Biological Research Institute, National Research Centre, Cairo, 12622, Egypt

Email

nadayasser2012@gmail.com

City

-

Orcid

-

First Name

Hesham

Last Name

Mansour

MiddleName

-

Affiliation

Soils and Water Use Dept., Agricultural and Biological Research Institute, National Research Centre, Cairo, 12622, Egypt

Email

hnm011@yahoo.com

City

Cairo

Orcid

0000-0002-9520-6815

First Name

Alaa

Last Name

Zaghloul

MiddleName

-

Affiliation

Soils and Water Use Dept., Agricultural and Biological Research Institute, National Research Centre, Cairo, 12622, Egypt

Email

alaazaghloul2002@yahoo.com

City

-

Orcid

-

Volume

67

Article Issue

13

Related Issue

46555

Issue Date

2024-12-01

Receive Date

2024-12-03

Publish Date

2024-12-01

Page Start

1,703

Page End

1,712

Print ISSN

0449-2285

Online ISSN

2357-0245

Link

https://ejchem.journals.ekb.eg/article_399534.html

Detail API

http://journals.ekb.eg?_action=service&article_code=399534

Order

399,534

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Biochemical Approaches for Mitigating heavy metals in Contaminated Soil Ecosystems: Kinetic Evaluation and Phytostablization Strategies

Details

Type

Article

Created At

13 Jan 2025