Method for distributing an aqueous solution containing a peroxyg

Details Method for distributing an aqueous solution containing a peroxyg Method for distributing an aqueous solution containing a peroxyg

1986-08-25

1988-05-31

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Chemical

166308, 252 8551, E02D 312

Patent

active

047477288

ABSTRACT:
The present invention is a method for distributing a colloid-free, aqueous solution containing a peroxygen compound in a particulate matter containing clay without causing the clay to swell. It has been found that hydrogen peroxide alone causes swelling of clays. It is well-known that monovalent ions cause clays to disperse and swell. It is unexpected to find that perborate and persulfate anions do not cause clays to swell, even in the presence of sodium ions. The process is useful for enhancing the biodegradation of contaminants in clayey soils or for winning mineral values from clayey ore deposits.

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