生物炭
环境修复
热解
修正案
生物量(生态学)
环境科学
废物管理
原材料
斜线和字符
肥料
固碳
土壤改良剂
环境化学
土壤水分
化学
污染
二氧化碳
工程类
农学
土壤科学
有机化学
法学
生物
生态学
政治学
作者
Tao Xie,Krishna R. Reddy,Chengwen Wang,Erin N. Yargıçoğlu,Kurt A. Spokas
标识
DOI:10.1080/10643389.2014.924180
摘要
Biochar is a stabilized, recalcitrant organic carbon compound, created when biomass is heated to temperatures usually between 300 and 1000°C, under low (preferably zero) oxygen concentrations. It is produced from a variety of biomass feedstock, such as agricultural residues, wood chips, manure, and municipal solid waste, through a variety of thermal treatments, among which slow pyrolysis is the most widely used due to its moderate operating conditions and optimization of biochar yields. Despite the recent introduction of the term biochar for this material, there have been several applications of charred materials in the past due to their unique properties (e.g., high specific surface area, microporosity, and sorptive capabilities). These early applications have primarily focused on the use of biochar as a soil amendment in agriculture, though other applications in environmental remediation engineering may be equally important (i.e., for soil and groundwater treatment and stormwater filter media). The objective of this review is to provide a detailed examination into the engineering properties and potential uses of biochar as an engineered material for environmental remediation. Biochar, due its highly variable and customizable surface chemistry, offers great potential in a variety of engineering applications, some of which have yet to be discovered.
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