Effect of sludge-based biochar on the stabilization of Cd in soil: experimental and theoretical studies DOI
Qian Li, Zhaoping Zhong, Yuxuan Yang

и другие.

International Journal of Phytoremediation, Год журнала: 2025, Номер unknown, С. 1 - 8

Опубликована: Янв. 26, 2025

Soil heavy metal contamination and sludge disposal have become globally environmental issues problems of great concern. Utilizing pyrolysis to produce biochar for remediating metal-contaminated soil is an effective strategy solve these two problems. In this study, municipal sewage papermaking were used as feedstock prepare co-pyrolyzed biochar, which was then applied reduce the toxicity Cd in soil. The results indicated that application significantly increased pH, CEC, enzyme activity, while decreasing content available Following 3% proportion acid-soluble decreased below 46%, facilitated conversion leachable stable oxidizable residual forms through precipitation complexation. DFT computational indicate aromatics can adsorb ions cation-π interactions, carboxyl, hydroxyl, aldehyde, amide groups provide more electrons adsorption ions, resulting stronger capacities. study findings a feasible solution resourceful treatment remediation

Язык: Английский

Effect of sludge-based biochar on the stabilization of Cd in soil: experimental and theoretical studies DOI
Qian Li, Zhaoping Zhong, Yuxuan Yang

и другие.

International Journal of Phytoremediation, Год журнала: 2025, Номер unknown, С. 1 - 8

Опубликована: Янв. 26, 2025

Soil heavy metal contamination and sludge disposal have become globally environmental issues problems of great concern. Utilizing pyrolysis to produce biochar for remediating metal-contaminated soil is an effective strategy solve these two problems. In this study, municipal sewage papermaking were used as feedstock prepare co-pyrolyzed biochar, which was then applied reduce the toxicity Cd in soil. The results indicated that application significantly increased pH, CEC, enzyme activity, while decreasing content available Following 3% proportion acid-soluble decreased below 46%, facilitated conversion leachable stable oxidizable residual forms through precipitation complexation. DFT computational indicate aromatics can adsorb ions cation-π interactions, carboxyl, hydroxyl, aldehyde, amide groups provide more electrons adsorption ions, resulting stronger capacities. study findings a feasible solution resourceful treatment remediation

Язык: Английский

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