工业水处理 ›› 2023, Vol. 43 ›› Issue (12): 26-35. doi: 10.19965/j.cnki.iwt.2022-0941

• 专论与综述 • 上一篇    下一篇

农业固废生物炭及其改性材料对重金属的吸附研究

牛经纬(), 周育智, 苏永东, 龙林丽, 胡翩, 蒋志洋, 陈孝杨()   

  1. 安徽理工大学地球与环境学院,安徽 淮南 232001
  • 收稿日期:2023-08-23 出版日期:2023-12-20 发布日期:2024-01-11
  • 作者简介:

    牛经纬(1999— ),硕士研究生。电话:18726897059,E-mail:

    陈孝杨,博士,教授,博导。E-mail:

  • 基金资助:
    中国工程院战略咨询重点项目(2021-DFZ-15); 安徽省重点研究与开发计划项目(S202104a06020064)

Adsorption of heavy metals by agricultural solid waste biochar and its modified materials

Jingwei NIU(), Yuzhi ZHOU, Yongdong SU, Linli LONG, Pian HU, Zhiyang JIANG, Xiaoyang CHEN()   

  1. School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China
  • Received:2023-08-23 Online:2023-12-20 Published:2024-01-11

摘要:

目前农业固废的安全处理与处置问题在我国农业和农村发展过程中日益突出,将生物质转化为富碳的生物炭是优化废弃物管理和环境保护的“双赢”策略。生物炭具有成本低廉、原料来源广泛、比表面积大、孔隙结构发达、表面官能团丰富和吸附能力强等优点,因此在水体重金属离子吸附领域受到广泛关注。介绍了生物炭的主要制备方法、改性方法和理化特性,阐述了农业固废生物炭及其改性材料对水中重金属离子的吸附性能、吸附影响因素和吸附机理,并对其未来研究方向进行了展望,如研发出成本低廉、结构良好、性质稳定和性能优异的新型碳基固废材料、构建起农业固废生物炭及其改性材料信息库和形成配套产业体系以实现其大规模工业应用等,以期为农业固废生物炭及其改性材料的资源化利用以及其在重金属废水处理领域的应用提供理论依据和技术支持。

关键词: 生物炭, 重金属, 吸附性能, 吸附机理

Abstract:

In China, the safe treatment and disposal of agricultural solid waste is becoming more and more important during the development of agriculture and rural areas. Converting biomass into biochar is a "win-win" strategy for waste management and environmental protection. Biochar has attracted extensive attention in the field of heavy metal adsorption as the advantages of low cost, numerous raw materials, large specific surface area, developed pore structure, rich surface functional groups and excellent adsorption capacity. In this paper, the main preparation and modification methods, as well as the physical and chemical properties of biochar were introduced. The performance, impact factors, and mechanisms on adsorption of heavy metal ions with biochar made by agricultural solid waste and its modified materials were expounded. The future research directions were also prospected. For example, novel carbon based solid waste materials with low cost, designed structure, stable properties and excellent performance; information database of biochar made by agricultural solid waste and its modified materials; supporting system to realize large-scale industrial application. This paper is expected to provide theoretical basis and technical support for the utilization of biochar made by agricultural solid waste and its modified materials and its application in the field of heavy metal wastewater treatment.

Key words: biochar, heavy metals, adsorption performance, adsorption mechanism

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