Proceedings of the International Conference on Sustainable Green Tourism Applied Science - Engineering Applied Science 2025 (ICOSTAS-EAS 2025)

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Natural Material-Based Water Filtration to Provide Clean Water for Semaja Village, Bali

Authors
I Gede Nyoman Suta Waisnawa1, *, I Made Rajendra1, Ida Ayu Anom Arsani1, I Made Sudana1, I Gusti Agung Oka Sudiadnyani1, Ketut Bangse1
1Mechanical Engineering Department, Politeknik Negeri Bali, Bali, Indonesia
*Corresponding author. Email: sutawaisnawa@pnb.ac.id
Corresponding Author
I Gede Nyoman Suta Waisnawa
Available Online 31 October 2025.
DOI
10.2991/978-94-6463-878-3_26How to use a DOI?
Keywords
Clean Water Sources; Natural Filtration; Semaja Village Community
Abstract

This study addresses the water quality issues in Semaja Village, where surface river water, the main source, becomes highly turbid during the rainy season. Managed by the “Pancoran Sari” group, the existing water supply system lacks thorough water quality testing, raising health concerns. To improve water safety, a natural filtration system using locally available pumice stone and activated carbon was developed. Pumice acts as a physical filter, removing sediments, while activated carbon adsorbs organic contaminants. Laboratory tests showed significant improvements: Chemical Oxygen Demand (COD) dropped to 11.973 mg/L, iron levels reduced to 0.641 mg/L, Total Dissolved Solids (TDS) decreased to 168 mg/L, and Biological Oxygen Demand (BOD) improved to 1.512 mg/L. The natural filtration system effectively enhances water quality and provides sustainable access to clean water for the community.

Copyright
© 2025 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 Sustainable Green Tourism Applied Science - Engineering Applied Science 2025 (ICOSTAS-EAS 2025)
Series
Advances in Engineering Research
Publication Date
31 October 2025
ISBN
978-94-6463-878-3
ISSN
2352-5401
DOI
10.2991/978-94-6463-878-3_26How to use a DOI?
Copyright
© 2025 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

risenwbib
TY  - CONF
AU  - I Gede Nyoman Suta Waisnawa
AU  - I Made Rajendra
AU  - Ida Ayu Anom Arsani
AU  - I Made Sudana
AU  - I Gusti Agung Oka Sudiadnyani
AU  - Ketut Bangse
PY  - 2025
DA  - 2025/10/31
TI  - Natural Material-Based Water Filtration to Provide Clean Water for Semaja Village, Bali
BT  - Proceedings of the International Conference on Sustainable Green Tourism Applied Science - Engineering Applied Science 2025 (ICOSTAS-EAS 2025)
PB  - Atlantis Press
SP  - 224
EP  - 232
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-878-3_26
DO  - 10.2991/978-94-6463-878-3_26
ID  - Waisnawa2025
ER  -