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Implementation of a Hyperbolic Vortex Plasma Reactor for the Removal of Micropollutants in Water

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Note: an underwater multi-channel plasma array for water sterilization.

Y Yang¹, H Kim, A Starikovskiy

¹College of Electrical and Electronics Engineering, Huazhong University of Science and Technology, Wuhan 430074, China. yy65@drexel.edu

The Review of Scientific Instruments

|October 7, 2011

Summary

This summary is machine-generated.

A novel method creates stable, large-volume underwater plasma arrays using stacked metal disks. This technology effectively deactivates E. coli bacteria in water, showing promise for industrial water treatment.

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Area of Science:

Plasma Physics
Water Treatment Technologies
Applied Microbiology

Background:

Developing efficient methods for generating stable underwater plasma is crucial for applications like water treatment.
Existing methods may face challenges in scalability and stability for large-volume applications.

Purpose of the Study:

To present a simple and effective method for generating multi-channel plasma arrays in water.
To evaluate the scalability and stability of the proposed underwater plasma generation system.
To assess the efficacy of the generated plasma in water sterilization.

Main Methods:

Utilized thin circular metal disks sandwiched between dielectric layers to create underwater plasma.
Employed optical emission spectroscopy to identify generated UV and reactive species.
Conducted sterilization experiments using Escherichia coli (E. coli) as a model organism.

Main Results:

Successfully generated a stable, large-volume multi-channel plasma array in water.
Demonstrated the scalability of the system by stacking multiple metal disk units.
Confirmed the generation of UV and reactive species.
Achieved effective deactivation of E. coli across a broad concentration range (10^4 to 10^8 CFU/ml).

Conclusions:

The developed method provides a stable and scalable approach for generating underwater plasma arrays.
The system shows significant potential for large-scale industrial water treatment applications.
The plasma array effectively sterilizes water by deactivating bacteria like E. coli.