Method for the preparation of adsorption compositions...

Catalyst – solid sorbent – or support therefor: product or process – Solid sorbent

Reexamination Certificate

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C502S415000, C502S417000

Reexamination Certificate

active

07968493

ABSTRACT:
This invention relates to novel adsorbent compositions for adsorbing pesticides like chlorpyrifos and malathion. This composition consists of nanoparticles of gold/silver supported on activated alumina or magnesia in powder or other forms. This invention includes a device and a method for decontaminating water contaminated with pesticides. This device consists of a housing provided with an inlet and an outlet. The housing is loaded with nanoparticles of gold/silver supported on activated magnesia. Contaminated water is allowed to pass through the housing while pesticides are adsorbed by the composition. Decontaminated water flows out through the outlet.

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