化工进展 ›› 2023, Vol. 42 ›› Issue (10): 5459-5469.DOI: 10.16085/j.issn.1000-6613.2022-2090

• 资源与环境化工 • 上一篇    下一篇

生物炭回收水中氮磷营养物质的研究进展与挑战

王书燕1,2(), 张新波1,2(), 彭安萍1,2, 刘阳1,2, NGO HUU HAO1, 郭文珊1, 温海涛1   

  1. 1.天津城建大学环境与市政工程学院,基础设施防护和环境绿色生物技术国际联合研究中心,天津 300384
    2.天津城建大学,天津市水质科学与技术重点实验室,天津 300384
  • 收稿日期:2022-11-09 修回日期:2023-04-29 出版日期:2023-10-15 发布日期:2023-11-11
  • 通讯作者: 张新波
  • 作者简介:王书燕(1998—),女,硕士研究生,研究方向为环境功能材料。E-mail:7686430@qq.com
  • 基金资助:
    天津市科委创新平台项目(18PTZWHZ00140);天津科委重点项目(20JCZDJC00380)

Research progress and challenges in recovery of nitrogen and phosphorus nutrients from water by biochar

WANG Shuyan1,2(), ZHANG Xinbo1,2(), PENG Anping1,2, LIU Yang1,2, HAO NGO HUU1, GUO Wenshan1, WEN Haitao1   

  1. 1.Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China
    2.Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Tianjin 300384, China
  • Received:2022-11-09 Revised:2023-04-29 Online:2023-10-15 Published:2023-11-11
  • Contact: ZHANG Xinbo

摘要:

水中过量氮磷营养物质的存在会引发水体富营养化。生物炭具有比表面积大、孔隙率高、热稳定性强、表面官能团丰富等优点,在吸附去除水中污染物方面呈现出良好性能。近年来,生物炭作为一种经济高效的吸附剂回收水中的氮和磷而受到了广泛关注,但不同种类生物炭对水中氮或磷的吸附性能有较大的差异。本文综述了基于各种废弃生物质制备及改性的生物炭对水中氮和磷的吸附性能,探讨分析了影响生物炭吸附水中氮和磷性能的主要因素,包括制备条件、环境温度、溶液pH和共存离子等,阐述了生物炭吸附水中氮和磷的主要机理。同时指出了目前生物炭在实际应用中所面临的挑战,并进一步展望了未来生物炭的重点研究方向,从而为实际利用生物炭吸附回收水中的氮和磷提供理论依据。

关键词: 生物炭, 氮, 磷, 吸附性能, 去除机理

Abstract:

The presence of excessive nitrogen and phosphorus nutrients leads to eutrophication of water. Biochar has the advantages of large specific surface area, high porosity, high thermal stability, and abundant surface functional groups, and presents good performance in adsorption and removal of pollutants in water. In recent years, biochar has received much attention as an economical and efficient adsorbent for the adsorption of nitrogen and phosphorus in water, however, various biochar exhibits the different adsorption performance in recovering nitrogen or phosphorus in water. This paper reviewes the adsorption performance of biochar prepared and modified from various waste biomasses on nitrogen and phosphorus in water, discusses the factors affecting the adsorption of nitrogen and phosphorus in water by different types of biochar, ambient temperature, solution pH and coexisting ions, and summarizes the main mechanisms for the adsorption of nitrogen and phosphorus in water by biochar. In the meantime, the challenges faced in practical applications are pointed out, and further the future research directions of biochar are also prospected, so as to provide a theoretical basis for the practical use of biochar for the adsorption and recovery of nitrogen and phosphorus in water.

Key words: biochar, nitrogen, phosphate, adsorption performance, removal mechanism

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