安徽农业科学2026，Vol.54Issue(9)：44-47,58,5.DOI:10.3969/j.issn.0517-6611.2026.09.009
热解条件对生物炭吸附重金属镉和铅的影响
Effect of Pyrolysis Conditions on Adsorption of Heavy Metal Cadmium and Lead by Biochar
摘要
Abstract
[Objective]To prepare biomass-based activated carbon from sludge and garden waste and evaluate its potential application in the remediation of cadmium(Cd)and lead(Pb)contaminated soils.[Method]Various biochars were prepared through treatment at different py-rolysis temperatures and durations,and their yield,heavy metal content,and adsorption performance were systematically analyzed.[Result]The biochar yield decreased with increasing pyrolysis temperature and prolonged pyrolysis time,with sludge-based biochar yielding higher than garden waste-based biochar.The pyrolysis temperature has a significant effect on the ability of biochar to adsorb heavy metals,while the pyrol-ysis time has a relatively small effect on it.Garden waste-based biochar pyrolyzed at 700℃ for 4 h exhibited the best adsorption effect for Pb2+and Cd2+,with adsorption capacities reaching 193.26 and 75.74 mg/g,respectively.Considering yield,energy consumption,and adsorption capacity comprehensively,garden waste-based biochar pyrolyzed at 400℃ for 2 h showed better adsorption performance for Pb2+contamina-tion,while that pyrolyzed at 300℃ for 2 h demonstrated superior adsorption for Cd2+.[Conclusion]This study provides scientific evidence and technical support for the effective management of soil heavy metal contamination,while also promoting the win-win development of waste resource utilization and environmental protection.关键词
生物质基活性炭/污泥/园林废弃物/土壤修复/重金属/吸附能力/热解条件Key words
Biomass-based activated carbon/Sludge/Garden waste/Soil remediation/Heavy metal/Adsorption capacity/Pyrolysis condition分类
资源环境引用本文复制引用
王月玲,杜林峰,蒙浪,宋平,史亚琪,裴福云,刘圣贤..热解条件对生物炭吸附重金属镉和铅的影响[J].安徽农业科学,2026,54(9):44-47,58,5.基金项目
国家重点研发计划课题(2020YFC1807804). （2020YFC1807804）
