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06:35
Implementation of a Hyperbolic Vortex Plasma Reactor for the Removal of Micropollutants in Water
Published on: July 25, 2025
Continuous-flow solar UVB disinfection reactor for drinking water.
Eric Gentil Mbonimpa1, Bryan Vadheim, Ernest R Blatchley
1School of Civil Engineering, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907-2051, USA.
Water Research
|March 6, 2012
Summary
A novel solar disinfection system using a compound parabolic collector (CPC) effectively inactivates E. coli in drinking water. This sustainable technology offers a scalable solution for safe water access in developing regions and beyond.
Area of Science:
- Environmental Engineering
- Water Treatment Technologies
- Renewable Energy Applications
Background:
- Lack of safe drinking water is a critical issue in developing nations.
- Sustainable water treatment solutions often require local resources and expertise.
- Point-of-use or community-scale systems are vital for addressing water scarcity.
Purpose of the Study:
- To develop a continuous-flow, solar ultraviolet (UVB) disinfection system.
- To enhance solar UVB disinfection efficiency using a compound parabolic collector (CPC).
- To assess the system's effectiveness for waterborne pathogen inactivation.
Main Methods:
- Numerical modeling of solar UVB spectral irradiance at diverse locations.
- Design and simulation of a CPC to amplify ambient UVB fluence rate.
- Construction of a prototype CPC with locally available, inexpensive materials.
- Testing the system's efficacy in inactivating Escherichia coli (E. coli).
Main Results:
- The solar UVB disinfection system demonstrated effective inactivation of E. coli.
- DNA-weighted UV dose was identified as the key factor governing reactor performance.
- The CPC design successfully amplified ambient UVB fluence rate for enhanced disinfection.
Conclusions:
- The developed solar UVB disinfection system is a promising, sustainable water treatment solution.
- The reactor design is expected to scale linearly, with potential for performance improvements.
- Applications include water treatment in developing countries, disaster relief, and military operations.
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