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Papers by sachini senadheera
Research Square (Research Square), Mar 15, 2024
Biochar, Dec 10, 2023
Biochar has a large specific surface area, well-developed pore structure, abundant surface functi... more Biochar has a large specific surface area, well-developed pore structure, abundant surface functional groups, and superior nutrient supply capacity, which is widely available and environmentally friendly with its advantages in waste resource utilization, heavy metal(loid) remediation, and carbon storage. This review focuses on the interactions between biochar (including raw biochar, functional biochar (modified/ engineered/ designer biochar), and composite biochar) and rhizosphere during the remediation of soil contaminated with heavy metal(loid)s (Pb, As, Cd, Hg, Co, Cu, Ni, Zn, Cr, etc.) and the effects of these interactions on the microbial communities and root exudates (enzymes and low-molecular-weight organic acids (LMWOAs)). In terms of microorganisms, biochar affects the composition, diversity, and structure of microbial communities through the supply of nutrients, provision of microbial colonization sites, immobilization of heavy metal(loid)s, and introduction of exogenous microorganisms. With regard to root exudates, biochar provides electron transfer support between the microorganisms and exudates, regulates the secretion of enzymes to resist the oxidative stress stimulated by heavy metal(loid)s, ameliorates rhizosphere acidification caused by LMWOAs, and promotes the activity of soil enzymes. The roles and mechanisms of biochar on rhizosphere soils are discussed, as well as the challenges of biochar in the remediation of heavy metal(loid)-contaminated soils, and the issues that need to be addressed in future research are foreseen. Highlights • The interactions between biochar and rhizosphere in the remediation of soil with heavy metal(loid)s have been focused • Biochar affects rhizosphere microorganisms by changing population diversity and community structure Handling editor: Xing Yang
Sustainability, Jan 9, 2024
Critical Reviews in Environmental Science and Technology, Jan 15, 2024
Sustainable Environment, Sep 29, 2022
Cement & Concrete Composites, Oct 1, 2023
Science of The Total Environment
Applied Catalysis B: Environmental
Cement and Concrete Composites
With technological advancements, many interconnected environmental issues have been worsening, in... more With technological advancements, many interconnected environmental issues have been worsening, including soil, water, and air pollution, climate change, loss of biodiversity, and over-exploitation ...
Research Square (Research Square), Mar 15, 2024
Biochar, Dec 10, 2023
Biochar has a large specific surface area, well-developed pore structure, abundant surface functi... more Biochar has a large specific surface area, well-developed pore structure, abundant surface functional groups, and superior nutrient supply capacity, which is widely available and environmentally friendly with its advantages in waste resource utilization, heavy metal(loid) remediation, and carbon storage. This review focuses on the interactions between biochar (including raw biochar, functional biochar (modified/ engineered/ designer biochar), and composite biochar) and rhizosphere during the remediation of soil contaminated with heavy metal(loid)s (Pb, As, Cd, Hg, Co, Cu, Ni, Zn, Cr, etc.) and the effects of these interactions on the microbial communities and root exudates (enzymes and low-molecular-weight organic acids (LMWOAs)). In terms of microorganisms, biochar affects the composition, diversity, and structure of microbial communities through the supply of nutrients, provision of microbial colonization sites, immobilization of heavy metal(loid)s, and introduction of exogenous microorganisms. With regard to root exudates, biochar provides electron transfer support between the microorganisms and exudates, regulates the secretion of enzymes to resist the oxidative stress stimulated by heavy metal(loid)s, ameliorates rhizosphere acidification caused by LMWOAs, and promotes the activity of soil enzymes. The roles and mechanisms of biochar on rhizosphere soils are discussed, as well as the challenges of biochar in the remediation of heavy metal(loid)-contaminated soils, and the issues that need to be addressed in future research are foreseen. Highlights • The interactions between biochar and rhizosphere in the remediation of soil with heavy metal(loid)s have been focused • Biochar affects rhizosphere microorganisms by changing population diversity and community structure Handling editor: Xing Yang
Sustainability, Jan 9, 2024
Critical Reviews in Environmental Science and Technology, Jan 15, 2024
Sustainable Environment, Sep 29, 2022
Cement & Concrete Composites, Oct 1, 2023
Science of The Total Environment
Applied Catalysis B: Environmental
Cement and Concrete Composites
With technological advancements, many interconnected environmental issues have been worsening, in... more With technological advancements, many interconnected environmental issues have been worsening, including soil, water, and air pollution, climate change, loss of biodiversity, and over-exploitation ...