Proceedings of the International Conference on Current Problems in Engineering and Applied Sciences (ICCPEAS 2025)

Sustainable Office Water Strategies: Quantitative Analysis of Bottled, Filtered, and Tap Water Systems

Authors
Ensar Çelikel1, Sebnem Gun1, *, Serdar Aydin1, *, Mirac Nur Ciner1, Emine Elmaslar Özbaş1, H. Kurtulus Ozcan1
1Engineering Faculty, Department of Environmental Engineering, Istanbul University-Cerrahpasa, 34320, Avcilar, Istanbul, Türkiye
*Corresponding author. Email: sebnem.gun@iuc.edu.tr
*Corresponding author. Email: saydin@iuc.edu.tr
Corresponding Authors
Sebnem Gun, Serdar Aydin
Available Online 14 May 2026.
DOI
10.2991/978-94-6239-668-5_68How to use a DOI?
Keywords
Sustainability; Office Water; Filtration Units
Abstract

Water consumption in office environments represents a significant yet often overlooked aspect of corporate sustainability. This study aims to evaluate office drinking water preferences within the framework of environmental, economic, and social sustainability. The research was conducted at the headquarters of a telecommunications company in Istanbul, where the existing water supply system relies on 16 dispensers and an average monthly consumption of 394 bottled gallons. A comprehensive assessment was performed to compare the environmental and economic impacts of bottled water consumption, particularly its carbon footprint, water footprint, and waste generation, with the potential benefits of filtered tap water systems. Two different brands of filtration devices, referred to as Brand X and Brand Y, were examined to evaluate their technical performance and sustainability implications. Parameters such as energy consumption, water purification capacity, and wastewater ratios were analyzed and compared against the bottled water system. The analysis revealed that bottled water production, packaging, and distribution processes create substantial environmental costs. Specifically, bottled water use resulted in an estimated 1,063.8 kg of CO₂ emissions per month, while the production and disposal of plastic containers contributed significantly to waste generation and marine pollution risks. In contrast, filtered tap water systems demonstrated markedly lower environmental impacts. Brand X consumed 8,240 kWh of electricity per month, corresponding to 6,923 kg of CO₂ emissions, whereas Brand Y, with a more energy-efficient system, produced only 4,969 kg of CO₂ per month.

Copyright
© 2026 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the International Conference on Current Problems in Engineering and Applied Sciences (ICCPEAS 2025)
Series
Advances in Engineering Research
Publication Date
14 May 2026
ISBN
978-94-6239-668-5
ISSN
2352-5401
DOI
10.2991/978-94-6239-668-5_68How to use a DOI?
Copyright
© 2026 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

TY  - CONF
AU  - Ensar Çelikel
AU  - Sebnem Gun
AU  - Serdar Aydin
AU  - Mirac Nur Ciner
AU  - Emine Elmaslar Özbaş
AU  - H. Kurtulus Ozcan
PY  - 2026
DA  - 2026/05/14
TI  - Sustainable Office Water Strategies: Quantitative Analysis of Bottled, Filtered, and Tap Water Systems
BT  - Proceedings of the International Conference on Current Problems in Engineering and Applied Sciences (ICCPEAS 2025)
PB  - Atlantis Press
SP  - 660
EP  - 670
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6239-668-5_68
DO  - 10.2991/978-94-6239-668-5_68
ID  - Çelikel2026
ER  -