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New System for Efficient Removal of Lignin with a High Proportion of Chlorine Dioxide

Author

Listed:
  • Jiahao He

    (School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
    Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China)

  • Baojie Liu

    (School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
    Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China)

  • Shuangquan Yao

    (School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
    Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China)

  • Can Chen

    (School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
    Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China)

  • Chen Liang

    (School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
    Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China)

  • Shuangfei Wang

    (School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
    Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China)

  • Chengrong Qin

    (School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
    Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China)

  • Yu Hao

    (School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
    Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China)

  • Tong Liao

    (School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
    Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China)

  • Cuisheng Xu

    (Guangxi Bossco Environmental Protection Technology Co., Ltd., Nanning 530007, China)

  • Guibin Huang

    (School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
    Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China)

  • Pengda He

    (School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
    Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China)

Abstract

Chlorine dioxide is used extensively as the bleaching agent in the clean pulp bleaching process. To further improve the efficiency of chlorine dioxide delignification, this study discusses the effect of a new system of a high proportion of chlorine dioxide on lignin removal. When the mass ratio of chlorine dioxide to lignin was 4 in this system, 50% of lignin was removed in a short time. To optimize the new bleaching system, the effects of temperature and pulp consistency on the new system were studied. The ratio of lignin removed was 50% when the reaction time was 30 min, temperature was 25 °C, and the pulp consistency was 5%. Compared with traditional chlorine dioxide bleaching, high proportion of chlorine dioxide bleaching can shorten the reaction time by 50%, reduce the reaction temperature to 25 °C, and greatly reduce energy consumption and adsorbable organic halogen (AOX) production by 45%. The new system provides a novel idea for clean bleaching of pulp.

Suggested Citation

  • Jiahao He & Baojie Liu & Shuangquan Yao & Can Chen & Chen Liang & Shuangfei Wang & Chengrong Qin & Yu Hao & Tong Liao & Cuisheng Xu & Guibin Huang & Pengda He, 2023. "New System for Efficient Removal of Lignin with a High Proportion of Chlorine Dioxide," Sustainability, MDPI, vol. 15(4), pages 1-14, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:4:p:3586-:d:1069456
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    Cited by:

    1. Halyna Yankovych & Miroslava Vaclavikova & Inna Melnyk, 2023. "A Review on Adsorbable Organic Halogens Treatment Technologies: Approaches and Application," Sustainability, MDPI, vol. 15(12), pages 1-18, June.

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