Ground contamination remediation process

Details Ground contamination remediation process Ground contamination remediation process

1992-01-14

1994-01-18

Cintins, Ivars

Liquid purification or separation

Processes

Treatment by living organism

166246, 210747, C02F 300

Patent

active

052797406

ABSTRACT:
Disclosed is a process for improved removal of contaminants including oily wastes and other organic hydrocarbonaceous materials from ground waters and areas adjacent to or in the vicinity of ground water locations. Ground and ground water contamination due to its unique nature, as being below ground and often not readily removable, has presented unique challenges to efforts seeking to render contaminated sites safe for habitation and/or contain and prevent contaminants to other, non-contaminated areas. The present process presents a viable solution to the problem of removing hydrocarbonaceous contaminating materials from ground and ground water. The process includes the use of at least two injection wells and at least one extraction well. One of the injection wells is being used for introduction of steam into a subsurface saturated zone. The other of the injection wells is being used for introduction, simultaneously with introduction of steam, of nutrients effective to enhance the growth of naturally occurring hydrocarbon degrading biota present in the subsurface area and/or of non-naturally occurring hydrocarbon degrading biota and nutrients effective to enhance the growth thereof. Upon application of a withdrawing force to the extraction well(s) at least a portion of the contaminants in the subsurface saturated zone is caused to be displaced toward the extraction well, in liquid or vaporized form or in combination thereof. These contaminants are then withdrawn through and removed from the contaminated area by the extraction well(s).

REFERENCES:
patent: 4435292 (1984-03-01), Kirk et al.
patent: 4593760 (1986-06-01), Visser et al.
patent: 4600508 (1986-07-01), De Ghetto
patent: 4660639 (1987-04-01), Visser et al.
patent: 4730672 (1988-03-01), Payne
patent: 4765902 (1988-08-01), Ely et al.
patent: 4848460 (1989-07-01), Johnson et al.
patent: 4992174 (1991-02-01), Caplan et al.
patent: 5018576 (1991-05-01), Udell

Affiliated with

Also associated with

Rating

Ground contamination remediation process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ground contamination remediation process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ground contamination remediation process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1134365