Treating material for polluted water and methods for...

C - Chemistry – Metallurgy – 02 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C02F 1/28 (2006.01) B01J 21/10 (2006.01) C02F 1/58 (2006.01) C02F 1/62 (2006.01) C02F 3/34 (2006.01)

Patent

CA 2523572

A treating material for treating a polluted water containing, as a hazardous substance, arsenic, lead, cadmium, antimony, uranium, phosphorus, fluorine or the like, which comprises an oxygen-containing iron compound carried on a material containing a silicic acid based fiber or a silicate based fiber; a method for producing the treating material which comprises contacting and reacting a silicate based fiber, such as rock wool, with an iron-containing acidic water; and a method for treating the polluted water witch comprises contacting the treating material with the polluted water. The treating material has a fine structure wherein the above oxygen-containing iron compound is attached in a sheath form on the surface of a fiber reduced in an alkali component and increased in a silicic acid component as compared to, for example, rock wool. The oxygen-containing iron compounds include schwertmannite, ferrihydrite, akaganeite, amorphous hydrous iron oxide and fired ferric sulfate.

L'invention concerne un matériau de traitement destiné au traitement d'une eau polluée contenant, en tant que substance dangereuse, de l'arsenic, du plomb, du cadmium, de l'antimoine, de l'uranium, du phosphore, du fluor ou analogue. Ledit matériau comprend un composé de fer contenant de l'oxygène porté sur un matériau contenant une fibre à base d'acide silicique ou une fibre à base de silicate. L'invention concerne également un procédé de production du matériau de traitement consistant à mettre en contact et à faire réagir une fibre à base de silicate, telle que de la laine de roche, avec une eau acide contenant du fer ; et un procédé de traitement de l'eau polluée consistant à mettre en contact le matériau de traitement avec l'eau polluée. Le matériau de traitement présente une structure fine, le composé de fer contenant de l'oxygène susmentionné étant fixé sous forme de gaine à la surface d'une fibre réduite dans un élément alcalin et accrue dans un élément d'acide silicique comparé, par exemple, à la laine de roche. Parmi les composés de fer contenant de l'oxygène, on trouve la swchertmannite, la ferrihydrite, l'akaganéite, un oxyde de fer hydraté amorphe et du sulfate ferrique calciné.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Treating material for polluted water and methods for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Treating material for polluted water and methods for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Treating material for polluted water and methods for... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1423151

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.