Engineered Biochar Production and Its Potential Benefits in a Closed-Loop Water-Reuse Agriculture System

Water

卷:12

Saied Delagah¹  Helen Trejo²  Mohamadali Sharbatmaleki³  CelesteY. Chan³  Simeng Li³ 

[1] Denver Federal Center, U.S. Bureau of Reclamation, P.O. Box 25007, Denver, CO 80225, USA;

[2] Department of Apparel Merchandising & Management, California State Polytechnic University Pomona, 3801 W. Temple Ave., Pomona, CA 91768, USA;

[3] Department of Civil Engineering, California State Polytechnic University Pomona, 3801 W. Temple Ave., Pomona, CA 91768, USA;

关键词: engineered biochar;    circular economy;    crop residue;    soil amendment;    sustainable agriculture;    water resilience;   

DOI  :  10.3390/w12102847

来源: DOAJ

【 摘 要 】

Biochar’s potential to remove various contaminants from aqueous solutions has been widely discussed. The rapid development of engineered biochar produced using different feedstock materials via various methods for wastewater treatment in recent years urges an up-to-date review on this topic. This article centers on summarizing state-of-the-art methods for engineered biochar production and discussing the multidimensional benefits of applying biochar for water reuse and soil amendment in a closed-loop agriculture system. Based on numerous recent articles (<5 years) published in journals indexed in the Web of Science, engineered biochar’s production methods, modification techniques, physicochemical properties, and performance in removing inorganic, organic, and emerging contaminants from wastewater are reviewed in this study. It is concluded that biochar-based technologies have great potential to be used for treating both point-source and diffuse-source wastewater in agricultural systems, thus decreasing water demand while improving crop yields. As biochar can be produced using crop residues and other biomass wastes, its on-farm production and subsequent applications in a closed-loop agriculture system will not only eliminate expensive transportation costs, but also create a circular flow of materials and energy that promotes additional environmental and economic benefits.

【 授权许可】

Unknown