Disposal of sediment from pond or lagoon at petroleum refinery

Details Disposal of sediment from pond or lagoon at petroleum refinery Disposal of sediment from pond or lagoon at petroleum refinery

2005-01-04

2005-01-04

Barry, Chester T. (Department: 1724)

Liquid purification or separation

Processes

Treatment by living organism

C210S623000, C210S631000, C210S197000, C210S532100, C210S513000, C210S538000

Reexamination Certificate

active

06837997

ABSTRACT:
Method and system for removing accumulated sediment at the bottom of a waste pond or lagoon of a wastewater treatment plant for a petroleum refinery. The system comprises a primary oil separation stage for separating hydrocarbons from the wastewater stream by gravity, a secondary oil removal stage and a biological treatment stage downstream of the secondary oil removal stage. A portion of the sediment from the bottom of the waste pond or lagoon is passed to the secondary oil removal stage and/or the biological treatment stage for processing with the refinery wastewater being treated in these stages.

REFERENCES:
patent: 3968036 (1976-07-01), Liles et al.
patent: 4292176 (1981-09-01), Grutsch et al.
patent: 4595508 (1986-06-01), Wolfe et al.
patent: 4857185 (1989-08-01), Desjardins
patent: 5288391 (1994-02-01), Biceroglu
patent: 5736049 (1998-04-01), Bundy et al.
patent: 5906750 (1999-05-01), Haase
Bush, “Refinery wastewater treatment and reuse,” Chemical Engineering pp 113-118 (Apr. 12, 1976).
Dialog abstract of Chin, “Evaluation of Treatment Efficiency of Processes for Petroleum Refinery Wastewater.” (1994).
Abstract of Ramalho, “Design of Aerobic Treatment Units-2. Aerated Lagoons and Wastewater Stabilization Ponds.” (1979).
Abstract of Bhagat, “ WET program converts oil residue.” (Jun. 1980).
Abstract of Weiss et al., “A Review of the Literature of 1968 on Wastewater and Water Pollution Control.” (Jun. 1969).

Affiliated with

Also associated with

Rating

Disposal of sediment from pond or lagoon at petroleum refinery does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disposal of sediment from pond or lagoon at petroleum refinery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disposal of sediment from pond or lagoon at petroleum refinery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3405494