Process for removing selenium from selenium-containing waste...

B - Operations – Transporting – 01 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B01D 15/04 (2006.01) B01J 41/04 (2006.01) C02F 1/28 (2006.01)

Patent

CA 2285272

A process for removing contaminating levels of selenium from a contaminated aqueous solution is disclosed. That process includes providing a vessel or flow-permissive container containing a water-insoluble polymeric adsorption medium having a plurality of polymerized C1-C4 N-alkylated pyridinium- containing adsorption sites. An influent of an aqueous solution having a total selenium concentration of about 10 to about 1000 parts per billion is introduced to the vessel or flow-permissive container to contact the insoluble polymeric adsorption medium. The solution is maintained in contact with the insoluble adsorption medium for a time period sufficient for the medium to bind the selenium in the contacting solution. The resulting aqueous solution is discharged from the vessel as an effluent having a total selenium concentration whose ratio to the total selenium concentration of the influent is about zero to about 10-3.

L'invention concerne un procédé d'extraction de niveaux contaminants de sélénium d'une solution aqueuse contaminée. Ce procédé consiste à utiliser une cuve ou un conteneur permettant un écoulement, contenant un milieu d'adsorption polymère non soluble dans l'eau présentant une pluralité de sites d'adsorption contenant du pyridinium N-alkylé en C¿1?-C¿4? polymérisé. On introduit un influent d'une solution aqueuse ayant une concentration totale de sélénium d'environ 10 à 1000 parties par milliard dans la cuve ou dans le conteneur permettant un écoulement, afin qu'il entre en contact avec le milieu d'adsorption polymère insoluble. On maintient la solution en contact avec ce milieu d'adsorption insoluble pendant une durée suffisante pour que le milieu fixe le sélénium dans la solution de contact. La solution aqueuse obtenue est déchargée de la cuve sous la forme d'un effluent ayant une concentration totale de sélénium dont le rapport avec la concentration totale de sélénium de l'influent est compris entre environ 0 et environ 10?-3¿.

LandOfFree

Say what you really think

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

Rating

Process for removing selenium from selenium-containing waste... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for removing selenium from selenium-containing waste..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for removing selenium from selenium-containing waste... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1735970

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