TY - JOUR
T1 - Biochar technology in wastewater treatment
T2 - A critical review
AU - Xiang, Wei
AU - Zhang, Xueyang
AU - Chen, Jianjun
AU - Zou, Weixin
AU - He, Feng
AU - Hu, Xin
AU - Tsang, Daniel C.W.
AU - Ok, Yong Sik
AU - Gao, Bin
N1 - Funding Information:
W.X and X.Z. would like to acknowledge the support of the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (Grant No. 18KJA610003 ), Key R & D Projects of Xuzhou (Grant No. KC18150 , KC16SS091), Xuzhou University of Technology (Grant No. XKY2018136 ), and the Project of Ministry of Housing and Urban-Rural Development (Grant No. 2013-K4-27 ).
Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/8
Y1 - 2020/8
N2 - Biochar is a promising agent for wastewater treatment, soil remediation, and gas storage and separation. This review summarizes recent research development on biochar production and applications with a focus on the application of biochar technology in wastewater treatment. Different technologies for biochar production, with an emphasis on pre-treatment of feedstock and post treatment, are succinctly summarized. Biochar has been extensively used as an adsorbent to remove toxic metals, organic pollutants, and nutrients from wastewater. Compared to pristine biochar, engineered/designer biochar generally has larger surface area, stronger adsorption capacity, or more abundant surface functional groups (SFG), which represents a new type of carbon material with great application prospects in various wastewater treatments. As the first of its kind, this critical review emphasizes the promising prospects of biochar technology in the treatment of various wastewater including industrial wastewater (dye, battery manufacture, and dairy wastewater), municipal wastewater, agricultural wastewater, and stormwater. Future research on engineered/designer biochar production and its field-scale application is discussed. Based on the review, it can be concluded that biochar technology represents a new, cost effective, and environmentally-friendly solution for the treatment of wastewater.
AB - Biochar is a promising agent for wastewater treatment, soil remediation, and gas storage and separation. This review summarizes recent research development on biochar production and applications with a focus on the application of biochar technology in wastewater treatment. Different technologies for biochar production, with an emphasis on pre-treatment of feedstock and post treatment, are succinctly summarized. Biochar has been extensively used as an adsorbent to remove toxic metals, organic pollutants, and nutrients from wastewater. Compared to pristine biochar, engineered/designer biochar generally has larger surface area, stronger adsorption capacity, or more abundant surface functional groups (SFG), which represents a new type of carbon material with great application prospects in various wastewater treatments. As the first of its kind, this critical review emphasizes the promising prospects of biochar technology in the treatment of various wastewater including industrial wastewater (dye, battery manufacture, and dairy wastewater), municipal wastewater, agricultural wastewater, and stormwater. Future research on engineered/designer biochar production and its field-scale application is discussed. Based on the review, it can be concluded that biochar technology represents a new, cost effective, and environmentally-friendly solution for the treatment of wastewater.
KW - Carbonaceous adsorbents
KW - Engineered biochar
KW - Modification methods
KW - Production technologies
KW - Wastewater treatment
UR - http://www.scopus.com/inward/record.url?scp=85082103787&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2020.126539
DO - 10.1016/j.chemosphere.2020.126539
M3 - Review article
C2 - 32220719
AN - SCOPUS:85082103787
SN - 0045-6535
VL - 252
JO - Chemosphere
JF - Chemosphere
M1 - 126539
ER -
