| PATENT ASSIGNEE'S COUNTRY | Sweden |
| UPDATE | 06.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Method for treat. of water in which polymerized Fe substance (I) is used as flocculant wherein - Aq soln contg freshly made (I) is produced - (I) is aged sufficiently long to provide minimal turbidity after treat. of water - Aq soln contg aged (I) is added to water to allow flocs & supernatant to form in said water - Turbidity of supernatant is measured - The ageing of (I) is controlled in response to measured con tent |
| PATENT PHOTOCOPY | Available on request |
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