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Development of calcium-modified biochar for enhanced phytoremediation of human-induced salt pollutants (HISPs).
Shen, Jian; Huang, Guohe; Yao, Yao; Li, Mengna; Zhang, Peng; Zhao, Kai; Rosendahl, Scott.
Afiliación
  • Shen J; Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, Canada, S4S 0A2.
  • Huang G; Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, Canada, S4S 0A2. Electronic address: gordon.huang@regina.ca.
  • Yao Y; Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, Canada, S4S 0A2.
  • Li M; Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, Canada, S4S 0A2.
  • Zhang P; Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, Canada, S4S 0A2.
  • Zhao K; Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, Canada, S4S 0A2.
  • Rosendahl S; Canadian Light Source, Saskatoon, S7N 2V3, Canada.
Chemosphere ; 355: 141860, 2024 May.
Article en En | MEDLINE | ID: mdl-38565377
ABSTRACT
Soil salinization is a major environmental hazard that limits land availability. Human-induced salt pollutants (HISPs) are regularly presented in large quantities on the contaminated site (such as brine leakages and salt-water spills), causing a devastating shock with high salt stress to the ecosystem. For instance, Saskatchewan resulted in a 48% drop in wheat production and a 0.3% decline in provincial GDP. As the calcium-modified biochar can potentially ameliorate the negative effects of HISPs on plants and improve the plant, phytoremediation with calcium-modified biochar can have increased detoxification of hazardous pollutants from sites. Therefore, the objective of our study was to develop a biochar-assisted phytoremediation employing diverse approaches to calcium modification for the sustainable removal of HISPs. The co-pyrolyzed calcium biochar achieved a remarkable removal rate of 18.06%, reducing salinity from 9.44 to 7.81 dS/m. During a 90-day long-term phytoremediation, the overall reduction rate of calcium-modified biochar stimulated the germination and growth of Thinopyrum ponticum. The result of post-treatment further indicated that co-pyrolyzed biochar with Ca transferred salt into the plant compared to Ca-coated biochar, which only immobilized HISPs on its surface. These results offer two different treatment approaches for diverse situations involving HISPs contamination, addressing current in-situ spills and providing a calcium-related biochar technology for further research in desalination.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes del Suelo / Contaminantes Ambientales Límite: Humans Idioma: En Revista: Chemosphere Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes del Suelo / Contaminantes Ambientales Límite: Humans Idioma: En Revista: Chemosphere Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido