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Conditioning of Sewage Sludge with Physical, Chemical and Dual Methods to Improve Sewage Sludge Dewatering

Author

Listed:
  • Beata Bień

    (Faculty of Infrastructure and Environment, Czestochowa University of Technology, 42-200 Czestochowa, Poland)

  • Jurand D. Bień

    (Faculty of Infrastructure and Environment, Czestochowa University of Technology, 42-200 Czestochowa, Poland)

Abstract

The paper presents the impact of different methods of sewage sludge conditioning on the improvement of sludge dewatering during pressure filtration processes. The following conditioning methods were tested for sludge preparation: sonication, addition of organic and inorganic chemicals (Zetag 8180, PIX 113 and the combined action of both substances). The research covered: physical and chemical analysis of sewage sludge, measurement of capillary suction time as an indicator of sludge dewaterability, some technical parameters of sludge pressure filtration process and the analysis of filtrate to assess the degree of contamination. The results of the research showed that the final water content of the prepared sludge decreased, while the specific filtration resistance increased. Among the tested methods the best results of sludge dewatering effects were obtained for sonicated sludge and its preparation with inorganic coagulant PIX 113. The combined effect of sonication with the addition of chemicals Zetag 8180 and PIX113 to sludge allowed for the reduction of organic substances, ammonium nitrogen and phosphates in filtrate after sludge dewatering.

Suggested Citation

  • Beata Bień & Jurand D. Bień, 2021. "Conditioning of Sewage Sludge with Physical, Chemical and Dual Methods to Improve Sewage Sludge Dewatering," Energies, MDPI, vol. 14(16), pages 1-14, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:5079-:d:616717
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    References listed on IDEAS

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    1. Tomasz Kamizela & Mariusz Kowalczyk, 2021. "Impact of Conditioning Substances and Filtration Pressure on Dewatering Efficiency of Sewage Sludge," Energies, MDPI, vol. 14(2), pages 1-10, January.
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    Cited by:

    1. Lidia Wolny & Paweł Wolski, 2021. "Ultrasounds Energy as an Agent of Polyelectrolyte Modification Prior to Sewage Sludge Conditioning," Energies, MDPI, vol. 14(19), pages 1-11, September.
    2. Jiahua Xia & Juan Ji & Zhiqiang Hu & Ting Rao & Ankang Liu & Jingqian Ma & Yongjun Sun, 2022. "Application of Advanced Oxidation Technology in Sludge Conditioning and Dewatering: A Critical Review," IJERPH, MDPI, vol. 19(15), pages 1-14, July.
    3. Beata Bień & Jurand D. Bień, 2022. "Analysis of Reject Water Formed in the Mechanical Dewatering Process of Digested Sludge Conditioned by Physical and Chemical Methods," Energies, MDPI, vol. 15(5), pages 1-14, February.

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    1. Beata Bień & Jurand D. Bień, 2022. "Analysis of Reject Water Formed in the Mechanical Dewatering Process of Digested Sludge Conditioned by Physical and Chemical Methods," Energies, MDPI, vol. 15(5), pages 1-14, February.

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