| Title | Recent advances in biochar amendments for immobilization of heavy metals in an agricultural ecosystem: A systematic review |
|---|---|
| ID_Doc | 20744 |
| Authors | Sachdeva, S; Kumar, R; Sahoo, PK; Nadda, AK |
| Title | Recent advances in biochar amendments for immobilization of heavy metals in an agricultural ecosystem: A systematic review |
| Year | 2023 |
| Published | |
| Abstract | Over the last several decades, extensive and inefficient use of contemporary technologies has resulted in sub-stantial environmental pollution, predominantly caused by potentially hazardous elements (PTEs), like heavy metals that severely harm living species. To combat the presence of heavy metals (HMs) in the agrarian system, biochar becomes an attractive approach for stabilizing and limiting availability of HMs in soils due to its high surface area, porosity, pH, aromatic structure as well as several functional groups, which mostly rely on the feedstock and pyrolysis temperature. Additionally, agricultural waste-derived biochar is an effective manage-ment option to ensure carbon neutrality and circular economy while also addressing social and environmental concerns. Given these diverse parameters, the present systematic evaluation seeks to (i) ascertain the effec-tiveness of heavy metal immobilization by agro waste-derived biochar; (ii) examine the presence of biochar on soil physico-chemical, and thermal properties, along with microbial diversity; (iii) explore the underlying mechanisms responsible for the reduction in heavy metal concentration; and (iv) possibility of biochar impli-cations to advance circular economy approach. The collection of more than 200 papers catalogues the immo-bilization efficiency of biochar in agricultural soil and its impacts on soil from multi-angle perspectives. The data gathered suggests that pristine biochar effectively reduced cationic heavy metals (Pb, Cd, Cu, Ni) and Cr mobilization and uptake by plants, whereas modified biochar effectively reduced As in soil and plant systems. However, the exact mechanism underlying is a complex biochar-soil interaction. In addition to successfully immobilizing heavy metals in the soil, the application of biochar improved soil fertility and increased agricul-tural productivity. However, the lack of knowledge on unfavorable impacts on the agricultural systems, along with discrepancies between the use of biochar and experimental conditions, impeded a thorough understanding on a deeper level. |
Similar Articles
| ID | Score | Article |
|---|---|---|
15063
|
Bousdra, T; Papadimou, SG; Golia, EE The Use of biochar in the Remediation of Pb, Cd, and Cu-Contaminated Soils. The Impact of biochar Feedstock and Preparation Conditions on Its Remediation Capacity(2023)Land, 12, 2 | |
| 10568
|
Hu, YC; Wang, JB; Yang, YS; Li, S; Wu, QH; Nepovimova, E; Zhang, XJ; Kuca, K Revolutionizing soil heavy metal remediation: Cutting-edge innovations in plant disposal technology(2024) | |
| 19965
|
Enaime, G; Lübken, M Agricultural Waste-Based Biochar for Agronomic Applications(2021)Applied Sciences-Basel, 11.0, 19 | |
| 9489
|
López-Cano, I; Cayuela, ML; Sánchez-García, M; Sánchez-Monedero, MA Suitability of Different Agricultural and Urban Organic Wastes as Feedstocks for the Production of BiocharPart 2: Agronomical Evaluation as Soil Amendment(2018)Sustainability, 10.0, 6 | |
| 23642
|
Kochanek, J; Soo, RM; Martinez, C; Dakuidreketi, A; Mudge, AM Biochar for intensification of plant-related industries to meet productivity, sustainability and economic goals: A review(2022) | |
| 21118
|
Viotti, P; Marzeddu, S; Antonucci, A; Decima, MA; Lovascio, P; Tatti, F; Boni, MR Biochar as Alternative Material for Heavy Metal Adsorption from Groundwaters: Lab-Scale (Column) Experiment Review(2024)Materials, 17.0, 4 | |
| 14761
|
Ginebra, M; Muñoz, C; Calvelo-Pereira, R; Doussoulin, M; Zagal, E Biochar impacts on soil chemical properties, greenhouse gas emissions and forage productivity: A field experiment(2022) | |
| 21444
|
Martinez-Gomez, A; Poveda, J; Escobar, C Overview of the use of biochar from main cereals to stimulate plant growth(2022) | |
| 29227
|
Ceriani, A; Fratte, MD; Agosto, G; Beatrice, P; Reguzzoni, M; Bettucci, L; Casini, D; Cerabolini, BEL; Montagnoli, A Woody and herbaceous invasive alien plant species-derived biochars are potentially optimal for soil amendment, soil remediation, and carbon storage(2024)Global Change Biology Bioenergy, 16.0, 2 | |
| 14672
|
Kumar, A; Bhattacharya, T; Shaikh, WA; Roy, A Sustainable soil management under drought stress through biochar application: Immobilizing arsenic, ameliorating soil quality, and augmenting plant growth(2024) |