TY - JOUR
T1 - Pretreatment, modification and applications of sewage sludge-derived biochar for resource recovery- A review
AU - Xiao, Yao
AU - Raheem, Abdul
AU - Ding, Lu
AU - Chen, Wei Hsin
AU - Chen, Xueli
AU - Wang, Fuchen
AU - Lin, Sheng Lun
N1 - Funding Information:
This work was supported by National Key Research and development (R&D) Program and International Science and Technology Innovation Project between Governments (project code: 2021YFE0108900 ), the project of the key research plan of Ningxia ( 2021BEE03011 ), Belt & Road Young Scientist Exchange Project Supported by Fund of Shanghai Science and Technology Committee ( 20230742400 ), and Pujiang Talent Program Supported by Fund of S hanghai Science and Technology Committee ( 20PJ1402800 ). The authors also acknowledge the financial support of the Ministry of Science and Technology , Taiwan, under contracts MOST 109-2221-E-006-040-MY3 , MOST 110-2622-E-006-001-CC1 , and MOST 110-3116-F-006-003 - for this research.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2022/1
Y1 - 2022/1
N2 - With the quick increase in industrialization and urbanization, a mass of sludge has been produced on the account of increased wastewater treatment facilities. Sewage sludge (SS) management has become one of the most crucial environmental problems because of the existence of various pollutants. However, SS is a carbon-rich material, which has favored novel technologies for biochar production, which can be utilized for dissimilar applications. This review systematically analyzes and summarizes the pretreatment, modification, and especially application of sewage sludge-derived biochar (SSBC), based on published literature. The comparative assessment of pretreatment technology such as pyrolysis, hydrothermal carbonization, combustion, deashing, and co-feeding is presented to appraise their appropriateness for SS resource availability and the production of SSBC. In addition, the authors summarize and analyze the current modification methods and divide them into two categories: physical properties and surface chemical modifications. The applications of SSBC as absorbent, catalyst and catalyst support, electrode materials, gas storage, soil amendment, and sold biofuel are reviewed in detail. Furthermore, the discussion about the existing problems and the direction of future efforts are presented at the end of each section to envisage SS as a promising opportunity for resources rather than a nuisance.
AB - With the quick increase in industrialization and urbanization, a mass of sludge has been produced on the account of increased wastewater treatment facilities. Sewage sludge (SS) management has become one of the most crucial environmental problems because of the existence of various pollutants. However, SS is a carbon-rich material, which has favored novel technologies for biochar production, which can be utilized for dissimilar applications. This review systematically analyzes and summarizes the pretreatment, modification, and especially application of sewage sludge-derived biochar (SSBC), based on published literature. The comparative assessment of pretreatment technology such as pyrolysis, hydrothermal carbonization, combustion, deashing, and co-feeding is presented to appraise their appropriateness for SS resource availability and the production of SSBC. In addition, the authors summarize and analyze the current modification methods and divide them into two categories: physical properties and surface chemical modifications. The applications of SSBC as absorbent, catalyst and catalyst support, electrode materials, gas storage, soil amendment, and sold biofuel are reviewed in detail. Furthermore, the discussion about the existing problems and the direction of future efforts are presented at the end of each section to envisage SS as a promising opportunity for resources rather than a nuisance.
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U2 - 10.1016/j.chemosphere.2021.131969
DO - 10.1016/j.chemosphere.2021.131969
M3 - Article
C2 - 34450364
AN - SCOPUS:85113526153
VL - 287
JO - Chemosphere
JF - Chemosphere
SN - 0045-6535
M1 - 131969
ER -