Audio / Video

Lightning in a Canteen

  • 01:03:58

Description

An emerging health problem is water contamination of our freshwater supplies, from waste derived from pharmaceuticals, personal care products, and industry. Health impacts to the public and aquatic life range from endochrine disruption to cancer. Advanced waterpurification treatment of both domestic drinking water and treated waste water is needed because conventional water treatment methods are inadequate for the increasing trace amounts of these contaminants and because the resiliency of domestic water supplies against issues such as drought and infrastructure failure need to be improved. "Advanced oxidation", which introduces reactive oxygen species (ROS), such as ozone, hydrogen peroxide and hydroxyls, for degrading contaminants into harmless byproducts by a process known as mineralization, is a conventional solution but requires non-water consumables, i.e., chemicals. In contrast, introducing "plasma" to interact with the problem water can drive advanced oxidation without the need for non-water consumables and can be tailored to address a wide range of contaminants. In this talk, we review the threats to freshwater supplies, the shortcomings of conventional methods, and the promising solution posed by the interaction of plasma with water. Anecdotal cases of the effectiveness of this fascinating and effective approach to water treatment will be presented.

Details

Title

Lightning in a Canteen

Creator

University of California, Berkeley. Dept. of Physics

Published

Berkeley, CA, University of California, Berkeley, Dept. of Physics, March 2, 2020

Full Collection Name

Physics Colloquia

Type

Video

Format

Lecture.

Extent

1 streaming video file

Other Physical Details

digital, sd., col.

Archive

Physics Library

Note

Recorded at a colloquium held on March 2, 2020, sponsored by the Dept. of Physics, University of California, Berkeley.

originally produced as an .mts file in 2020

Speakers: John Foster.

Collection

Physics Colloquia

Tracks

colloquia/3-2-20Foster.mp4 01:03:58

Linked Resources

View record in Digital Collections.