solar-pasteurizer-dcinar

https://github.com/global-health-engineering/solar-pasteurizer-dcinar

Science Score: 75.0%

This score indicates how likely this project is to be science-related based on various indicators:

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CITATION.cff file
Found CITATION.cff file
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codemeta.json file
Found codemeta.json file
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.zenodo.json file
Found .zenodo.json file
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DOI references
Found 3 DOI reference(s) in README
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Academic publication links
Links to: zenodo.org
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Institutional organization owner
Organization global-health-engineering has institutional domain (ghe.ethz.ch)
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Scientific vocabulary similarity
Low similarity (10.6%) to scientific vocabulary

Last synced: 6 months ago · JSON representation ·

Repository

Basic Info

Host: GitHub
Owner: Global-Health-Engineering
License: cc-by-4.0
Default Branch: main
Size: 6.84 KB

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Stars: 0
Watchers: 1
Forks: 0
Open Issues: 0
Releases: 0

Created 11 months ago · Last pushed 11 months ago

Metadata Files

Readme License Citation

Data Underlying the Study on Improving the Solar Sludge Pasteurization Technology

Contributors
- Deniz Cinar author, maintainer
- Jakub Tkaczuk 0000-0001-7997-9423 supervisor, developer
- Elizabeth Tilley 0000-0002-2095-9724 supervisor

It compliments the openly-accessible master’s thesis, available on the

ETH Research Collection.

Background

This repository compliments the study on the development and field evaluation of a low-cost, solar-powered sludge pasteurization system designed for decentralized sanitation contexts in Sub-Saharan Africa. The system was implemented at Rurri Primary School in Nakuru, Kenya, and tested under peak summer irradiance conditions. Through iterative design, three main versions of the solar water heater were developed, with the final version incorporating all adaptations emerging as the most effective configuration. It reliably achieved Escherichia coli inactivation in all treated samples while maintaining a treatment flow rate of approximately 3 L/h. The data validates the performance of the last pasteurizer's version.

The final system design remains financially viable, with a potential cost as low as $405 USD in installations where gravity flow is available and certain components, such as the heat exchanger, are excluded. While the final version performed well under optimal conditions, residual heat loss through the cold sludge inlet and overnight temperature decline were identified as areas for future improvement.

Temperature and irradiance data were continuously recorded and are available in data/raw_data directory, allowing for performance evaluation and time–temperature analysis against literature-based inactivation thresholds.

This work demonstrates the feasibility of decentralized solar-driven sludge treatment and offers a scalable, adaptable solution for improving sanitation in off-grid environments. Further work is needed to optimize thermal retention, validate system performance under variable climatic conditions, and explore automated flow control for enhanced consistency.

Data & system overview

The data in data/raw_data directory, together with the metadata in data/metadata/metadata.csv are the temperature and solar irradiance measurements collected from the points in the system presented on the figure below.

License

The complete design and user manual are licensed under Creative Commons Attribution 4.0 International.

Owner

Name: Global Health Engineering
Login: Global-Health-Engineering
Kind: organization
Location: Switzerland

Website: https://ghe.ethz.ch/
Twitter: ETH_GHE
Repositories: 23
Profile: https://github.com/Global-Health-Engineering

Citation (CITATION.cff)

cff-version: 1.2.0
message: "To cite this repository, use:"
license: CC-BY-4.0
title: "Data Underlying the Study on Improving the Solar Sludge Pasteurization Technology"
date-released: "2025-04-14"
doi: 10.5281/zenodo.15223263
type: software
authors:
  - family-names: Cinar
    given-names: Deniz
    email: dcinar@student.ethz.ch
  - family-names: Tkaczuk
    given-names: Jakub
    email: jtkaczuk@ethz.ch
    orcid: https://orcid.org/0000-0001-7997-9423
  - family-names: Tilley
    given-names: Elizabeth
    email: tilleye@ethz.ch
    orcid: https://orcid.org/0000-0002-2095-9724
contact:
  - family-names: Tkaczuk
    given-names: Jakub
    email: jtkaczuk@ethz.ch
    orcid: https://orcid.org/0000-0001-7997-9423
version: 0.0.1

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