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Dairy wastewater treatment using water treatment sludge as coagulant: a novel treatment approach

Author

Listed:
  • Alok Suman

    (Jamia Millia Islamia (A Central University))

  • Tarique Ahmad

    (Jamia Millia Islamia (A Central University))

  • Kafeel Ahmad

    (Jamia Millia Islamia (A Central University))

Abstract

The dairy industry is among the most polluting industries as it produces large volume of wastewater that may adversely affect the environment if discharged untreated. Dairy wastewater is characterized by high COD, BOD and nutrient levels. In this study, water treatment sludge was used as a coagulant for the treatment of synthetic dairy wastewater in the pH range of 4–10. Turbidity, COD, BOD, TSS and TDS removals from the synthetic dairy wastewater were found to be around 93, 65, 67, 84 and 85%, respectively, at the optimum conditions. Water treatment sludge was found to perform even better than other conventional coagulants used for the same. Results showed that it has the potential to substitute the conventional coagulants partially or fully in the primary treatment of dairy wastewater. The utilization of water treatment sludge at dairy wastewater treatment plants would provide sustainable sludge management and cost-effective dairy wastewater treatment.

Suggested Citation

  • Alok Suman & Tarique Ahmad & Kafeel Ahmad, 2018. "Dairy wastewater treatment using water treatment sludge as coagulant: a novel treatment approach," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 20(4), pages 1615-1625, August.
    • Handle: RePEc:spr:endesu:v:20:y:2018:i:4:d:10.1007_s10668-017-9956-2
    DOI: 10.1007/s10668-017-9956-2
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    Cited by:

    1. Yanxia Wu & Haixia Du & Fusheng Li & Haoning Su & Sartaj Ahmad Bhat & Hudori Hudori & Maulana Yusup Rosadi & Faisal Arsyad & Yanqiu Lu & Huifang Wu, 2020. "Effect of Adding Drinking Water Treatment Sludge on Excess Activated Sludge Digestion Process," Sustainability, MDPI, vol. 12(17), pages 1-15, August.
    2. Camilo C. Castro-Jiménez & Julio C. Saldarriaga-Molina & Edwin F. García & Mauricio A. Correa-Ochoa, 2022. "Primary Treatment of Domestic Wastewater with the Use of Unmodified and Chemically Modified Drinking Water Treatment Sludge," Sustainability, MDPI, vol. 14(16), pages 1-15, August.

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