Method of isolating humic acid.
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 substanc...
| Main Authors: | , , |
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| Format: | Patent |
| Language: | English |
| Published: |
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/26586/ |
| _version_ | 1848845618103975936 |
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| author | Ahmed, Osumanu Haruna Kasim, Susilawati Nik Ab. Majid, Nik Muhamad |
| author_facet | Ahmed, Osumanu Haruna Kasim, Susilawati Nik Ab. Majid, Nik Muhamad |
| author_sort | Ahmed, Osumanu Haruna |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | 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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| first_indexed | 2025-11-15T08:49:40Z |
| format | Patent |
| id | upm-26586 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:49:40Z |
| publishDate | 2009 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-265862014-09-22T08:34:40Z http://psasir.upm.edu.my/id/eprint/26586/ Method of isolating humic acid. Ahmed, Osumanu Haruna Kasim, Susilawati Nik Ab. Majid, Nik Muhamad 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. 2009-01-07 Patent NonPeerReviewed Osumanu Haruna Ahmed (2009) Method of isolating humic acid. UNSPECIFIED. English |
| spellingShingle | Ahmed, Osumanu Haruna Kasim, Susilawati Nik Ab. Majid, Nik Muhamad Method of isolating humic acid. |
| title | Method of isolating humic acid. |
| title_full | Method of isolating humic acid. |
| title_fullStr | Method of isolating humic acid. |
| title_full_unstemmed | Method of isolating humic acid. |
| title_short | Method of isolating humic acid. |
| title_sort | method of isolating humic acid. |
| url | http://psasir.upm.edu.my/id/eprint/26586/ |