Device of three-chamber type for purifying liquid

Details Device of three-chamber type for purifying liquid Device of three-chamber type for purifying liquid

2001-02-21

2002-11-05

Upton, Christopher (Department: 1724)

Liquid purification or separation

With gas-liquid surface contact means

With separator

C210S195100, C210S196000, C210S519000, C210S532100, C210S532200, C210S521000

Reexamination Certificate

active

06475381

ABSTRACT:

TECHNICAL FIELD
The present invention relates to a device of three-chamber type for purifying liquid in a cup-shaped vessel having an inlet tube for the liquid at a certain level and an outlet tube at a lower level than the inlet tube.
BACKGROUND OF THE INVENTION
In the field of water purification—both with regard to pretreatment and to aftertreatment—the separation and storing of sinking and floating contaminants and particles is of great importance. This separation and sedimentation is accomplished in that the water is forced to flow through several chambers, where the dimensioning of each chamber is determined with regard to the sinking speeds of the contaminants and particles to separate.
A sludge separator, a septic tank of three-chamber type, or a fat separator thus consists of a container, which is divided into several chambers by vertical partition walls allowing the water or liquid to flow from chamber to chamber through openings in the walls at appropriate levels depending on the density of the contaminants or particles to separate.
These partition walls may be subjected to great pressures at sludge removal or emptying, as the liquid level may be much higher at one side of a partition wall than on the other one, which means that the partition walls must be dimensioned and attached with this difficulty in mind.
Undesired leakage may appear along the attachments of the partition walls. The partition walls of concrete are conventionally arranged in vessels of concrete, for example well rings or well pipes. For solving the above problems the partition walls have themselves to be reinforced and have to be attached by separate reinforcement bars and sealed.
This means that the conventional devices of the kind described are heavy, less volume effective, and rather expensive, although the comparatively cheap material concrete is used.
THE INVENTION
The above and other problems with a device of the kind defined above is according to the invention solved in that the vessel below the inlet and outlet tubes is vertically divided by a substantially horizontal distribution disc having at least one opening and being provided with a substantially vertical distribution tube for receiving the liquid from the inlet tube.
Hereby, a first chamber is formed below the lower end of the distribution tube, a second chamber is formed over the lower end of the distribution tube and below the distribution disc, and a third chamber is formed over the distribution disc.
In a design of this type, a sewage treatment or purification plant of biological type may be attained in that a reactor containing water purification bacteria, preferably on a carrier material, such as zeolite, and having in its lower end an air nozzle for oxygenating liquid admitted at this lower end is arranged in an opening in the distribution disc having at least one further opening. A reactor conduit connects the upper part of the reactor with the distribution tube, so that a recirculation of the liquid is accomplished.


REFERENCES:
patent: 948924 (1910-02-01), Goedecker
patent: 1641469 (1927-09-01), Baker
patent: 3412864 (1968-11-01), Okada
patent: 3817864 (1974-06-01), Carlson et al.
patent: 5156742 (1992-10-01), Struewing
patent: 5498331 (1996-03-01), Monteith
patent: 5609754 (1997-03-01), Stuth
patent: 5725760 (1998-03-01), Monteith
patent: 5753115 (1998-05-01), Monteith
patent: 5800715 (1998-09-01), Batson
patent: 622708 (1981-04-01), None
patent: 378288 (1990-07-01), None
patent: 2386651 (1977-04-01), None
patent: 9-273210 (1996-04-01), None

Affiliated with

Also associated with

Rating

Device of three-chamber type for purifying liquid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device of three-chamber type for purifying liquid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device of three-chamber type for purifying liquid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2935836