MARGARET HENSLEY DUNN
Geologists in Rochester, PA
License number
Pennsylvania PG000771G
Category
Engineers
Type
Professional Geologist
Address
Address
Rochester, PA 15074
Professional information
Rehabilitating Contaminated Water Treatment Media With Resource Recovery
US Patent:
8119009, Feb 21, 2012
Filed:
Jul 31, 2009
Appl. No.:
12/462258
Inventors:
Robert C. Dolence - Moon Township PA, US
Timothy P. Danehy - Saxonburg PA, US
Margaret H. Dunn - Rochester PA, US
Shaun L. Busler - Butler PA, US
Thomas Grote - Sewickley PA, US
Timothy P. Danehy - Saxonburg PA, US
Margaret H. Dunn - Rochester PA, US
Shaun L. Busler - Butler PA, US
Thomas Grote - Sewickley PA, US
International Classification:
B01J 49/00
US Classification:
210663, 210672, 210673, 210675, 210684, 210688, 210690
Abstract:
Dissolved metals are removed from contaminated water by passing the water through a bed containing media bodies, preferably limestone bodies. Various contaminants carried by the water become associated with the media bodies, thereby inhibiting water flow. The media bodies are rehabilitated by using an excavator, loader, or other machine to scoop them into a bucket having a peripheral wall including a sieve, immersing the container into a liquid held in a wash pit, rotating the bucket so that contaminants abraded from the bodies fall through the sieve into the pit, removing the container from the liquid, and dumping the rehabilitated media bodies from the bucket. When the media bodies have filtered mine drainage containing a particular dissolved metal such as manganese or iron for example, a residue remaining in the basin is a rich source of metal compounds that can be recovered for economic use.