ANDREA M DAVIS
Nursing at Greenleaf Cir, Panama City, FL

License number
Florida 9355297
Issued Date
Jan 25, 2013
Effective Date
Jan 20, 2017
Expiration Date
Jul 31, 2018
Category
Health Care
Type
Registered Nurse
Address
Address 2
4306 Greenleaf Cir, Panama City, FL 32404
3024 4Th St, Marianna, FL 32446
Phone
(850) 832-7456

Professional information

Andrea Davis Photo 1

Water Treatment Process For Perchlorate, Nitrate, Chromate, Arsenate And Other Oxyanions For Using Weak-Base Anion Exchange Resins

US Patent:
2007011, May 24, 2007
Filed:
Nov 23, 2005
Appl. No.:
11/287579
Inventors:
Edward Coppola - Panama City FL, US
John Baxley - Lynn Haven FL, US
Andrea Davis - Panama City FL, US
Francis Boodoo - King of Prussia PA, US
William Fries - Warminster PA, US
James Dale - Cardiff, GB
International Classification:
B01D 15/00
US Classification:
210660000
Abstract:
The invention consists of a water treatment process using selective and regenerable weak base anion exchange resins to remove any number of complex anions, especially oxyanions including perchlorate, nitrate, chlorate, arsenate, selenate, and chromate, from aqueous solutions. The treatment process is comprised of three key processes including 1) pretreatment to lower pH, 2) ion exchange, and 3) post treatment to adjust pH and alkalinity. The invention also includes processes for regenerating weak base anion resins and treatment of the residuals generated. This invention employs pressurized treatment, carbon dioxide management, and reuse of regenerating solution to minimize pumping and treatment costs.