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Recent Progress in Sludge-Derived Biochar and Its Role in Wastewater Purification

Author

Listed:
  • Yujun Zhou

    (School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

  • Jiamin Gao

    (School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

  • Xuran Yang

    (School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

  • Hao Ni

    (School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

  • Junwen Qi

    (School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

  • Zhigao Zhu

    (School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

  • Yue Yang

    (School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

  • Di Fang

    (Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China)

  • Lixiang Zhou

    (Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China)

  • Jiansheng Li

    (School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

Abstract

As the by-product of wastewater treatment, a large amount of sludge is generated annually. Turning this waste into a resource is a feasible and sustainable strategy to reduce potential environmental risks and recover energy. As a way to realize the international goal of carbon dioxide emission peak and carbon neutrality, producing biochar from sludge has gained worldwide attention. This review evaluates recent progress in synthesis techniques for biochar of sludge origin. Different preparation techniques and their key affecting factors are compared and described. The obtained sludge-derived biochar could be employed for eliminating aqueous pollution or purifying wastewater, mainly through adsorption and catalytic reactions. The removal of various pollutants by sludge-derived biochar and its related mechanisms are discussed and summarized in detail. This review will be conducive for a comprehensive understanding of recent progress in sludge-derived biochar study and for guiding the purposeful production of biochar, as well as for developing wastewater purification technology based on sludge-derived biochar.

Suggested Citation

  • Yujun Zhou & Jiamin Gao & Xuran Yang & Hao Ni & Junwen Qi & Zhigao Zhu & Yue Yang & Di Fang & Lixiang Zhou & Jiansheng Li, 2024. "Recent Progress in Sludge-Derived Biochar and Its Role in Wastewater Purification," Sustainability, MDPI, vol. 16(12), pages 1-16, June.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:12:p:5012-:d:1413499
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    Cited by:

    1. Enzo Antonio Lecciolle Paganini & Rafael Barroca Silva & Ludmila Ribeiro Roder & Iraê Amaral Guerrini & Gian Franco Capra & Eleonora Grilli & Antonio Ganga, 2024. "A Systematic Review and Meta-Analysis of the Sustainable Impact of Sewage Sludge Application on Soil Organic Matter and Nutrient Content," Sustainability, MDPI, vol. 16(22), pages 1-16, November.

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