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Potential Environmental Impacts of a Hospital Wastewater Treatment Plant in a Developing Country

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  • Muhammad Tariq Khan

    (Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, New Territories, Hong Kong, China
    State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China)

  • Riaz Ahmad

    (State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China)

  • Gengyuan Liu

    (State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China)

  • Lixiao Zhang

    (State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China)

  • Remo Santagata

    (Faculty of Engineering and Computer Science, Pegaso University, Centro Direzionale, Isola F2, 80143 Napoli, Italy)

  • Massimiliano Lega

    (Department of Engineering, University of Napoli ‘Parthenope’, Centro Direzionale, Isola C4, 80143 Napoli, Italy)

  • Marco Casazza

    (Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, Università degli Studi di Salerno, 84081 Baronissi, Italy)

Abstract

Assessing the quality of a hospital wastewater treatment process and plant is essential, especially if the presence of chemical and biological toxic compounds is considered. There is less literature on hospital wastewater treatment in developing countries because of a lack of managerial awareness and stakeholder cooperation, accompanied by the limited capacity of investment meant to upgrade the existing infrastructures. Limited access to data further hampers the reliable analysis of hospital wastewater treatment plants (WWTPs) in developing countries. Thus, based on the possibility of collecting a sufficient amount of primary (i.e., field) data, this study performed an assessment of the potential impacts generated by the WWTP of Quaid-Azam International Hospital in Islamabad (Pakistan) considering its construction and operational phases. The major identified impacts were attributed to the energy mix used to operate the plant. Marine ecotoxicity was the most impactful category (34% of the total potential impacts accounted for), followed by human carcinogenic toxicity (31%), freshwater toxicity (18%), terrestrial ecotoxicity (7%), and human non-carcinogenic toxicity (4%). An analysis of potential impacts was combined with an assessment of potential damage according to an endpoint approach. In particular, the endpoint analysis results indicated that human health damage (quantified as DALY) was mainly dependent on the “fine PM (particulate matter) formation” category (51%), followed by “global warming and human health” (43%). Other categories related to human health impacts were human carcinogenic toxicity (3%), water consumption (2%), and human non-carcinogenic toxicity (1%). The other impact categories recorded a percentage contribution lower than 1%. With respect to ecosystem damage, “global warming and terrestrial ecosystems” played a major role (61%), followed by terrestrial acidification (24%), ozone formation (10%), water consumption (5%), and freshwater eutrophication (1%). This study’s findings support an increase in awareness in the hospital management board while pointing out the need to further implement similar studies to improve the quality of decision-making processes and to mitigate environmental impacts in more vulnerable regions. Finally, this research evidenced the need to overcome the existing general constraints on data availability. Consequently, further field work, supported by hospital managers in developing countries, would help in enhancing managerial procedures; optimizing treatment plant efficiency; and facilitating the implementation of circular options, such as sludge management, that often remain unexplored.

Suggested Citation

  • Muhammad Tariq Khan & Riaz Ahmad & Gengyuan Liu & Lixiao Zhang & Remo Santagata & Massimiliano Lega & Marco Casazza, 2024. "Potential Environmental Impacts of a Hospital Wastewater Treatment Plant in a Developing Country," Sustainability, MDPI, vol. 16(6), pages 1-18, March.
  • Handle: RePEc:gam:jsusta:v:16:y:2024:i:6:p:2233-:d:1352783
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    References listed on IDEAS

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    1. ZhenHua Li & ZhiHong Zou & LiPing Wang, 2019. "Analysis and Forecasting of the Energy Consumption in Wastewater Treatment Plant," Mathematical Problems in Engineering, Hindawi, vol. 2019, pages 1-8, July.
    2. Gu, Yifan & Li, Yue & Li, Xuyao & Luo, Pengzhou & Wang, Hongtao & Robinson, Zoe P. & Wang, Xin & Wu, Jiang & Li, Fengting, 2017. "The feasibility and challenges of energy self-sufficient wastewater treatment plants," Applied Energy, Elsevier, vol. 204(C), pages 1463-1475.
    3. Longo, Stefano & d’Antoni, Benedetto Mirko & Bongards, Michael & Chaparro, Antonio & Cronrath, Andreas & Fatone, Francesco & Lema, Juan M. & Mauricio-Iglesias, Miguel & Soares, Ana & Hospido, Almudena, 2016. "Monitoring and diagnosis of energy consumption in wastewater treatment plants. A state of the art and proposals for improvement," Applied Energy, Elsevier, vol. 179(C), pages 1251-1268.
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    1. Ahmad, Riaz & Liu, Gengyuan & Rehman, Syed Aziz Ur & Fazal, Rizwan & Gao, Yuan & Xu, Duo & Agostinho, Feni & Almeida, Cecilia M.V.B. & Giannetti, Biagio F., 2025. "Pakistan road towards Paris Agreement: Potential decarbonization pathways and future emissions reduction by A developing country," Energy, Elsevier, vol. 314(C).

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