Liquid purification or separation – Processes – Treatment by living organism
Patent
1997-10-06
1999-07-06
Upton, Christopher
Liquid purification or separation
Processes
Treatment by living organism
210617, 210150, 210170, 210236, C02F 304
Patent
active
059193662
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
THIS invention relates to the treatment of aqueous media and solid organic material to remove constituents which are hazardous or toxic to humans or the environment.
Conveyancing pipes or ducts used in conventional aqueous media treatment systems are not specifically engineered to effect any treatment, and consequently very little effective treatment occurs inside most pipes leading to or from treatment systems despite the fact that the pipes contribute substantially to the cost of the overall waste treatment system. In centralised sewerage treatment schemes the collection system can cost as much as the treatment plant to install. In a typical on-site treatment system for a single detached dwelling, 10 to 20 meters of 100 mm diameter pipework, or equivalent, leads to the treatment chamber, and a further 20 to 30 meters leads from the treatment chamber to the disposal/re-use area. Within the disposal area another 20 to 40 meters of pipe is commonly used in addition to trench support material, aggregate liners, and the like. Typically the treatment chamber is designed to be relatively large in order to provide sufficient retention time for treatment. Both aerobic and anaerobic treatment systems are typically bulky and deep in order to provide sufficient retention time for aqueous media treatment.
In sewered allotments there is much more than the equivalent of 60 meters of 100 mm diameter pipe, when a share of the common reticulation network is apportioned to each connection serviced
Aqueous media pipes have much to recommend them as aerobic treatment systems. They have a vented air space available above the aqueous media level most of the time, are usually out of sight, and are often installed in the ground or in buildings where the extremes of temperature are moderated.
A method of using a bed of decomposed and decomposing solid organic waste material to filter aqueous media is known and used commercially. The method uses a relatively deep bed thickness to effect the filtration. It also employs a technique where the filter bed is more or less evenly loaded. This results in some practical constraints. aqueous media inlet pipe. This often results in a need to pump the effluent where the land is fairly flat or where the water table is high. and pathogens are not deactivated before removal. temporarily inundated since the aqueous media cannot flow anywhere else. This results in a less diverse community of breakdown organisms being able to survive under these circumstances. surface area than a vertically arranged treatment chamber.
OBJECT OF THE INVENTION
One object of the invention is to avoid the use of pipes whose sole function is to convey effluent to treatment systems.
Another object of the invention is to overcome the problems of existing effluent treatment systems as mentioned above.
SUMMARY OF THE INVENTION
According to the present invention there is provided an enclosed effluent treatment system incorporating a sloping filter bed with a living population of effluent decomposing organisms and an overlying air space, an aqueous effluent media inlet above the filter bed at an upper end thereof, a filtered aqueous media outlet and, optionally, a solid waste input region downstream of the aqueous media inlet and means for solids removal.
The invention thus covers both an aqueous media purification system and an aqueous media and solid organic waste treatment system. The term "effluent" used throughout the specification can refer to one or other of these input streams.
DETAILED DESCRIPTION OF THE INVENTION
Where more than one filter bed is configured, the beds are preferably stacked in vertical layers. Preferably there is a ventilated space between these beds.
The filter bed(s) is(are) enclosed to prevent contamination of the environment by the waste material or potential vectors of disease. The enclosure can typically comprise a pipe, duct or trench. A duct or pipe typically includes a longitudinal lower inner surface with the filter bed arranged above that surface and e
REFERENCES:
patent: 832245 (1906-10-01), Durbrow
patent: 3635816 (1972-01-01), Golub
patent: 4209388 (1980-06-01), DeFraites
patent: 4218318 (1980-08-01), Niimi et al.
patent: 4285719 (1981-08-01), Criss
patent: 4678582 (1987-07-01), LaVigno
patent: 4793929 (1988-12-01), Kickuth et al.
patent: 4990031 (1991-02-01), Blowes et al.
patent: 4997568 (1991-03-01), Vandervelde et al.
patent: 5078882 (1992-01-01), Northrop
patent: 5174897 (1992-12-01), Wengrzynek
patent: 5240611 (1993-08-01), Burton
patent: 5273653 (1993-12-01), Kickuth
patent: 5419838 (1995-05-01), DiTullio
patent: 5460722 (1995-10-01), Chen
patent: 5507944 (1996-04-01), Friedland et al.
Dowmus Pty. Ltd.
Upton Christopher
LandOfFree
Effluent treatment system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Effluent treatment system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effluent treatment system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-896748