Biochar-based functional materials in the purification of agricultural wastewater: Fabrication, application and future research needs. (April 2018)

• Record Type: Journal Article
• Authors: Wei, Dongning; Li, Bingyu; Huang, Hongli; Luo, Lin; Zhang, Jiachao; Yang, Yuan; Guo, Jiajun; Tang, Lin; Zeng, Guangming; Zhou, Yaoyu
• Is Part Of: Chemosphere. Volume 197(2018)
• Page Start: 165
• Page End: 180
• Publication Date: 2018-04
• Subjects: Biochar -- Functional materials -- Fabrication -- Purification -- Agricultural contaminants; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2017.12.193
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: Nowadays, agricultural contamination is becoming more and more serious due to the rapid growth of agricultural industry, which discharged antibiotics, pesticides or toxic metals into farmlands. A large number of researchers have applied biochar-based functional materials to the treatment of agricultural wastewater contamination. Meanwhile, biochar has also proved to be a very promising and effective technology in water purification field due to its various beneficial properties (e.g., cost effective, high specific surface area, and surface reactive groups). The focus of this review is to highlight the fabrication methods and application of biochar-based functional materials with the removal of different agricultural contaminants, and discuss the underlying mechanisms. However, the application of biochar-based functional materials is currently under its infancy, with the main hindrance is identified as the gap between laboratory scale and field application, immaturity of engineered biochar production technologies, and lack of quality standards. In order to fill these knowledge gaps, more efforts should be made to pay for the relevant research in future studies. Graphical abstract: Image 1 Highlights: Recent studies on fabrication methods of biochar-based functional materials are reviewed. This review is to highlight the application of biochar-based functional materials to remove agricultural contaminants. The removal mechanisms of agricultural contaminants by biochar-based functional materials are discussed. Knowledge gaps regarding to biochar-based functional materials should be addressed in the future research.