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Method of isolating humic acid.


Citation

Osumanu Haruna Ahmed (2009) Method of isolating humic acid. UNSPECIFIED.

Abstract / Synopsis

The present invention is a simple, rapid and cost-effective ,method of isolating humic acids from organic and inorganic materials. The method comprises the steps of: (a) dissolving a humic acid containing substance in an alkaline solution; (b) subjecting the mixture of humic acid containing substance and alkaline solution to centrifugation to obtain a supernatant layer as a precipitate layer; (c) reacting the precipitate layer with an acidic solution to obtain a suspension layer containing humic acid; (d) subjecting the suspension layer containing humic acid to centrifugation to obtain a precipitate; (e) washing the precipitate with distilled water, thus obtaining a purified humic acid extract.


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Additional Metadata

Item Type: Patent
Divisions: Faculty of Agriculture and Food Sciences
Keywords: Humic acids; Organic; Inorganic.
Depositing User: Mastura Yapandi
Date Deposited: 06 Nov 2013 08:59
Last Modified: 22 Sep 2014 16:34
URI: http://psasir.upm.edu.my/id/eprint/26586
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