PROCESS FOR REMOVING SELENIUM FROM SELENIUM-CONTAINING WASTE STREAMS

申请公布号：WO9843719(A1)

申请号：WO1998US06553

申请日期：1998.04.01

申请公布日期：1998.10.08

申请人：

NTEC SOLUTIONS, INC.

发明人：SMITH, PAUL, K.;BERGEMANN, EUGENE, P.

分类号：B01D15/04;B01J41/04;C02F1/28

主分类号：B01D15/04

摘要：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>.

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