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Sustainable and Safe Treatment of Wastewater of Paint Industry Using Azadarachta indica Leaf Extract Combined with Silver Nitrate Solution

Author

Listed:
  • Muhammad Atif Irshad

    (Department of Environmental Sciences, The University of Lahore, Lahore 54590, Pakistan)

  • Basharat Ali

    (Department of Environmental Sciences, The University of Lahore, Lahore 54590, Pakistan)

  • Ali Irfan

    (Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan)

  • Sami A. Al-Hussain

    (Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 13623, Saudi Arabia)

  • Rab Nawaz

    (Department of Environmental Sciences, The University of Lahore, Lahore 54590, Pakistan)

  • Iqra Nasim

    (Department of Environmental Sciences, The University of Lahore, Lahore 54590, Pakistan)

  • Maria Latif

    (Department of Environmental Sciences, The University of Lahore, Lahore 54590, Pakistan)

  • Magdi E. A. Zaki

    (Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 13623, Saudi Arabia)

Abstract

This study was conducted to assess the effectiveness of a combined green and synthetic solution for the sustainable treatment of wastewater from the paint industry. Effluent was treated with a natural plant extract ( Azadarachta indica ) and a silver nitrate solution (AgNO 3 ). Three composite samples of wastewater were collected from the paint industry, transferred to the laboratory for analysis, and three case studies were applied for treatment. The parameters of the treated water were compared with the Punjab Environmental Quality Standards (PEQS). Case 1 was a control treatment in which discharged industrial effluent was collected and analyzed for various pollutants (pH, COD, TDS, TSS, and BOD). All the target parameters were higher than the limits in the PEQS. In Case 2, the wastewater was treated by reaction with an A. indica solution for a 4 to 72 h retention time. Some pollutants were remediated as a result of the reaction, while the majority of pollutants required a longer retention time and a higher concentration of A. indica extract, making this case applicable for the treatment of wastewater. In Case 3, the discharged industrial effluent was reacted with A. indica solution combined with AgNO 3 solution for wastewater treatment with a 4 to 72 h retention time; after reaction, all the pollutants were remediated at high pH of 12 at a retention time of 24 h. However, a longer retention time and a better solution are required for the treatment of priority pollutants. However, Case 3 treated more pollutants, so was far superior to Cases 1 and 2. As a result, this instance is suitable for the treatment of wastewater from the paint industry.

Suggested Citation

  • Muhammad Atif Irshad & Basharat Ali & Ali Irfan & Sami A. Al-Hussain & Rab Nawaz & Iqra Nasim & Maria Latif & Magdi E. A. Zaki, 2023. "Sustainable and Safe Treatment of Wastewater of Paint Industry Using Azadarachta indica Leaf Extract Combined with Silver Nitrate Solution," Sustainability, MDPI, vol. 15(4), pages 1-12, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:4:p:3592-:d:1069580
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    References listed on IDEAS

    as
    1. Muhammad Atif Irshad & Muhammad Ahmad Humayoun & Sami A. Al-Hussain & Rab Nawaz & Muhammad Arshad & Ali Irfan & Magdi E. A. Zaki, 2022. "Green and Eco-Friendly Treatment of Textile Wastewater by Using Azadirachta indica Leaf Extract Combined with a Silver Nitrate Solution," Sustainability, MDPI, vol. 15(1), pages 1-12, December.
    2. Tolulope E. Aniyikaiye & Temilola Oluseyi & John O. Odiyo & Joshua N. Edokpayi, 2019. "Physico-Chemical Analysis of Wastewater Discharge from Selected Paint Industries in Lagos, Nigeria," IJERPH, MDPI, vol. 16(7), pages 1-17, April.
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    Cited by:

    1. Trespeuch Léo & Robinot Élisabeth, 2023. "Exploring the Impact of Corporate Philanthropy on Brand Authenticity in the Luxury Industry: Scale Development and Empirical Studies," Sustainability, MDPI, vol. 15(16), pages 1-21, August.

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