气候变化领域集成服务门户(CCPortal): Biochar characteristics, applications and importance in health risk reduction through metal immobilization

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DOI	10.1016/j.eti.2020.101121
	Biochar characteristics, applications and importance in health risk reduction through metal immobilization
	Khan, Anwarzeb; Khan, Sardar; Lei, Ming; Alam, Mehboob; Khan, Muhammad Amjad; Khan, Ajmal
通讯作者	Khan, S (通讯作者)
发表日期	2020
ISSN	2352-1864
卷号	20
英文摘要	Biochar can be tailored to valuable and engineered product with specified requirements, purpose of use, condition of soil, type of potential toxic elements (PTEs) to be re mediated, crops cultivated and/or types of feedstocks used as raw materials. Biochar application for remediation of metal contaminated soil has received a great attention in the recent decades. However, minimal work has been done on the role of biochar in health risk reduction through PTE immobilization. This review paper focuses on the role of biochar in soil nutrient enhancement, PTE bioavailability and health risk reduction. The presented information revealed that the effect of biochar on PTE bioavailability varied greatly depending on biochar properties that are strongly influenced by synthesis method, pyrolysis temperature and feedstock. The application of biochar has reduced PTE bioavailability, for instance, the highest reduction for As (71%), Cd (99%), Cr (43%), Cu (68%), Ni (85%), Pb (86%) and Zn (75%). This review highlights the effects of various biochars on human health through ingestion of vegetables cultivated in biochar amended soil. Different health risk indices including average daily intake (ADI) target hazard quotient (THQ) and target cancer risk (TCR) showed that biochar significantly reduces the health risk of PTEs through ingestion of vegetables grown in biochar amended soil. According to literature, the THQ values for selected PTEs were reduced such as for As (96%), Cd (95%), Cr (43%), Cu (63%), Ni (95%), Pb (86%) and Zn (84%). This review also highlights the future research consideration for effective management of biochar application for remediation of PTE contaminated soils. (C) 2020 Elsevier B.V. All rights reserved.
关键词	SEWAGE-SLUDGE BIOCHAR POLYCYCLIC AROMATIC-HYDROCARBONS POTENTIALLY TOXIC ELEMENTS MUNICIPAL SOLID-WASTE ZERO-VALENT IRON HEAVY-METALS CONTAMINATED SOIL BLACK CARBON NUTRIENT AVAILABILITY SORPTION MECHANISMS
英文关键词	Biochar; PTEs; Nutrients; Bioaccumulation; Cancer risk
语种	英语
WOS研究方向	Biotechnology & Applied Microbiology ; Engineering ; Environmental Sciences & Ecology
WOS类目	Biotechnology & Applied Microbiology ; Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000597139100021
来源期刊	ENVIRONMENTAL TECHNOLOGY & INNOVATION
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259895
推荐引用方式 GB/T 7714	Khan, Anwarzeb,Khan, Sardar,Lei, Ming,et al. Biochar characteristics, applications and importance in health risk reduction through metal immobilization[J]. 中国科学院青藏高原研究所,2020,20.
APA	Khan, Anwarzeb,Khan, Sardar,Lei, Ming,Alam, Mehboob,Khan, Muhammad Amjad,&Khan, Ajmal.(2020).Biochar characteristics, applications and importance in health risk reduction through metal immobilization.ENVIRONMENTAL TECHNOLOGY & INNOVATION,20.
MLA	Khan, Anwarzeb,et al."Biochar characteristics, applications and importance in health risk reduction through metal immobilization".ENVIRONMENTAL TECHNOLOGY & INNOVATION 20(2020).