Crack down

Published: Sunday 31 March 1996

The latest progress reported in the quest for a toxic waste-free environment comes from researchers at the California Institute of Technology in Pasadena, US (Alternatives Journal. Vo122. No 1).

Chemist Michael Hoffman and his colleagues have used high frequency ultrasound waves to break down samples of several toxic chemicals. Tiny bubbles form when ultrasound is directed at liquids and collapse just as rapidly. With internal temperatures rising to 5.500C, the complex toxic molecules break down into non hazardous components.

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