The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 1996
Filed:
May. 26, 1994
Applicant:
Inventors:
Bobby L Summers, Jr, Hudson, OH (US);
Lester B Gress, Brecksville, OH (US);
Assignee:
Aero-Terra-Aqua Technologies Corp., Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502407 ; 502401 ;
Abstract
A bead is provided which consists essentially of peat moss or other nonliving biomass immobilized by sodium silicate or polysulfone binder. The bead is effective to remove metal contaminants from dilute aqueous solutions. A method of making metal-ion-sorbing beads is provided, comprising combining peat moss or other nonliving biomass and liquid binder (preferably in a pin mixer where it is whipped), forming wet beads, and drying the beads. The liquid binder is preferably sodium silicate dissolved in water or polysulfone dissolved in methylene chloride.