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Environmental Assessment of a Wastewater System under Water demand management policies

Author

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  • Haniye Safarpour

    (University of Tehran)

  • Massoud Tabesh

    (University of Tehran)

  • Seyyed Ahmadreza Shahangian

    (University of Tehran)

Abstract

Water demand management policies (WDMPs) are considered necessary for sustainable water supplies to affect urban water infrastructures from various aspects, which has less attention in previous studies. Hence, this study is focused on proposing a comprehensive novel approach to provide helpful insight for researchers and policy-makers towards the environmental effects of applying WDMPs on wastewater systems. The life cycle assessment (LCA) method assesses the environmental burdens of utilizing WDMPs in the operation stage of a real wastewater system in Baharestan city, Iran. A detailed inventory is considered, including maintenance of sewer pipelines, replacement of manhole covers, civil works, road rehabilitation, energy consumption, chemical usage, transportation, and air emissions of the WWCN and WWTP using SimaPro software. Results show that a significant part of the environmental impacts accounts for energy consumption, which has strong effects on most midpoint categories and has a great change in different scenarios. For example, energy’s impact on the global warming category is reduced from around 18.4 to 8.5 million kg CO2 eq. from scenario 0 to scenario 4 with an average of 165.4 to 94 L/capita/day of wastewater production, respectively. Besides, the results demonstrate that the environmental effects driven by the WWTP are eightfold the corresponding WWCN’s impacts. Overall, the outcomes from the present study reveals that implementing WDMPs can lead to diminishing environmental impacts. For instance, reducing wastewater production up to 68% can decrease 18% of the WDMPs’ environmental impacts of the wastewater system in the operation stage.

Suggested Citation

  • Haniye Safarpour & Massoud Tabesh & Seyyed Ahmadreza Shahangian, 2022. "Environmental Assessment of a Wastewater System under Water demand management policies," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 36(6), pages 2061-2077, April.
    • Handle: RePEc:spr:waterr:v:36:y:2022:i:6:d:10.1007_s11269-022-03129-w
    DOI: 10.1007/s11269-022-03129-w
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    References listed on IDEAS

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    1. Inas El-Gafy & Defne Apul, 2021. "Expanding the Dynamic Modeling of Water-Food-Energy Nexus to Include Environmental, Economic, and Social Aspects Based on Life Cycle Assessment Thinking," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 35(13), pages 4349-4362, October.
    2. Anna Petit-Boix & David Sanjuan-Delmás & Sergio Chenel & Desirée Marín & Carles Gasol & Ramon Farreny & Gara Villalba & María Suárez-Ojeda & Xavier Gabarrell & Alejandro Josa & Joan Rieradevall, 2015. "Assessing the Energetic and Environmental Impacts of the Operation and Maintenance of Spanish Sewer Networks from a Life-Cycle Perspective," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 29(8), pages 2581-2597, June.
    3. Anna Petit-Boix & Núria Roigé & Albert de la Fuente & Pablo Pujadas & Xavier Gabarrell & Joan Rieradevall & Alejandro Josa, 2016. "Integrated Structural Analysis and Life Cycle Assessment of Equivalent Trench-Pipe Systems for Sewerage," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 30(3), pages 1117-1130, February.
    4. Ulises Rodrigo Magdalena & Cristiane Nunes Francisco & Lucas Garofolo Lopes & Daniel Andrés Rodriguez, 2022. "Conservation Policy Changes in Protected Areas on Hilltops in Brazil: Effects on Hydrological Response in a Small Watershed," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 36(4), pages 1251-1270, March.
    5. Shyama Ratnasiri & Clevo Wilson & Wasantha Athukorala & Maria A. Garcia-Valiñas & Benno Torgler & Robert Gifford, 2018. "Effectiveness of two pricing structures on urban water use and conservation: a quasi-experimental investigation," Environmental Economics and Policy Studies, Springer;Society for Environmental Economics and Policy Studies - SEEPS, vol. 20(3), pages 547-560, July.
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    Cited by:

    1. Haniye Safarpour & Massoud Tabesh & Seyyed Ahmadreza Shahangian & Mohsen Hajibabaei & Robert Sitzenfrei, 2022. "Life Cycle Sustainability Assessment of Wastewater Systems under Applying Water Demand Management Policies," Sustainability, MDPI, vol. 14(13), pages 1-18, June.
    2. Zhangjun Liu & Jingwen Zhang & Tianfu Wen & Jingqing Cheng, 2022. "Uncertainty Quantification of Rainfall-runoff Simulations Using the Copula-based Bayesian Processor: Impacts of Seasonality, Copula Selection and Correlation Coefficient," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 36(13), pages 4981-4993, October.

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