Apparatus and process for water treatment

Patent · Mon Jan 01 00:00:00 EST 2001

OSTI ID:873819

Phifer, Mark A ^[1]; Nichols, Ralph L ^[1]

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1. North Augusta, SC

An apparatus is disclosed utilizing permeable treatment media for treatment of contaminated water, along with a method for enhanced passive flow of contaminated water through the treatment media. The apparatus includes a treatment cell including a permeable structure that encloses the treatment media, the treatment cell may be located inside a water collection well, exterior to a water collection well, or placed in situ within the pathway of contaminated groundwater. The passive flow of contaminated water through the treatment media is maintained by a hydraulic connection between a collecting point of greater water pressure head, and a discharge point of lower water pressure head. The apparatus and process for passive flow and groundwater treatment utilizes a permeable treatment media made up of granular metal, bimetallics, granular cast iron, activated carbon, cation exchange resins, and/or additional treatment materials. An enclosing container may have an outer permeable wall for passive flow of water into the container and through the enclosed treatment media to an effluent point. Flow of contaminated water is attained without active pumping of water through the treatment media. Remediation of chlorinated hydrocarbons and other water contaminants to acceptable regulatory concentration levels is accomplished without the costs of pumping, pump maintenance, and constant oversight by personnel.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• DOE Contract Number: AC09-96SR18500
• Assignee: Westinghouse Savannah River Company (Aiken, SC)
• Patent Number(s): US 6254785
• OSTI ID: 873819
• Country of Publication: United States
• Language: English

Related Subjects

apparatus
process
water
treatment
disclosed
utilizing
permeable
media
contaminated
method
enhanced
passive
flow
cell
including
structure
encloses
located
inside
collection
exterior
placed
situ
pathway
groundwater
maintained
hydraulic
connection
collecting
pressure
head
discharge
utilizes
granular
metal
bimetallics
cast
iron
activated
carbon
cation
exchange
resins
additional
materials
enclosing
container
outer
wall
enclosed
effluent
attained
active
pumping
remediation
chlorinated
hydrocarbons
contaminants
acceptable
regulatory
concentration
levels
accomplished
costs
pump
maintenance
constant
oversight
personnel
chlorinated hydrocarbons
treatment media
water pressure
contaminated groundwater
water treatment
located inside
cast iron
cell including
contaminated water
cation exchange
activated carbon
exchange resin
exchange resins
pressure head
concentration levels
permeable structure
granular metal
chlorinated hydrocarbon
groundwater treatment
concentration level
disclosed utilizing
/210/