摘要
生物炭因其高稳定性、良好的表面特性、发达的孔隙结构、丰富的表面官能团等特性,在土壤修复和水污染控制等环境治理方面具有广阔的应用前景。文章综述了近年来生物炭应用的研究进展,重点介绍了生物炭在重金属、有机物和氮磷营养盐的去除和温室气体的固定方面的应用。生物炭常用农作物秸秆、枯枝落叶、脱水后的污泥和底泥等农业和工业废弃物热解而成,却能在环境治理中发挥较大的作用,体现了"以废治废"理念,是一种新型、经济、环保的环境治理技术。
Biochar has been widely applied in soil remediation and water pollution control due to its high stability,excellent surface properties,high-developed pore structure and rich surface functional groups.In this paper,the research progress of biochar application to treatment of various pollutants was reviewed,and the techniques of biochar used for removing heavy metals,organic pollutants,nitrogen and phosphorus nutrients,and the fixation of greenhouse gases were summarized.Actually,biochar which is made from agricultural and industrial wastes such as crop straw,withered leaves,de-watered sewage sludge and sediment by pyrolysis technology,plays an important role in environmental pollution control,fully embodying the concept of"treating waste with waste".
作者
侯欢
李祝
汪淑廉
HOU Huan;LI Zhu;WANG Shulian(School of Civil Engineering,Architecture and Environment,Hubei University of Technology,Wuhan 430068,China)
出处
《环境科学与技术》
CAS
CSCD
北大核心
2020年第9期59-66,共8页
Environmental Science & Technology
基金
国家自然科学基金(51909082)
大学生创新创业训练计划项目(201910500142)
关键词
生物炭
重金属
有机污染物
吸附
以废治废
biochar
heavy metals
organic pollutants
adsorption
treating waste with waste
