The assignee for this patent, patent number 8747666, is Melcher; Jeffrey S. (
Reporters obtained the following quote from the background information supplied by the inventors: "There have been many attempts to filter water. One such conventional recycling apparatus is sold commercially under the Cyclonator.TM. name. A description can be found on the internet at www.cyclonator.com. This system uses numerous hoses to and from a specially designed washing platform, an additional separate filtering tank to remove larger debris and oils, a special holding tank, and two vacuum canister type filters that require expensive filters. This recycling apparatus provides no visual monitoring ability except for vacuum gauges, has no pH monitoring nor automatic adjustment capability, and the location of the unit has to be in close proximity to the wash platform and the power washer. Furthermore, the filtering apparatus is difficult to maintain, requires a large area of space and numerous extra equipment at additional cost. Moreover, the vacuum or pressure used to force the wash solution through a filter can undesirably force dirt through filters.
"There are many other systems that use pressure or vacuum, including those from Cyclonator standard filtration weir, www.cyclonator.com;
"Two open water filtration systems, CFS3 and CMAFU-2 are commercially sold by HydroEngineering, disclosed at www.hydroblaster.com. However, in these systems the filtered water is not continuously filtered through the filter media and there is only one filter media. While there are other filtering systems disclosed on the website which refer to circulation of water for multiple passes through polishing media (see description of Model ACF3) this appears to be a closed system since hydrobiodigesters must be utilized.
"There is a need for an improved water filtering apparatus that does not require a vacuum or pressure pumps, provides easy visual inspection of the filters during operation, is easy to maintain and operate, and can be scaled to any size operation."
In addition to obtaining background information on this patent, NewsRx editors also obtained the inventor's summary information for this patent: "Provided is a recycling apparatus for recycling contaminated water from an oil or gas well comprising a holding vessel containing contaminated water from an oil or gas well, a main tank constructed and arranged for holding filtered oil or gas well water and having at least one opening to the environment to allow air to freely transfer between the main tank the environment; an oil-water separator in communication with the main tank; a pump constructed and arranged for transferring contaminated water from the holding vessel to the oil-water separator; a first filter assembly in gravity feed relation with the main tank, said first filter assembly having a first filter sheet; and a second filter assembly in gravity feed relation with the main tank, said second filter assembly having a second filter sheet having a filtration size of 10 microns or less, wherein said first and second filter assemblies are constructed and arranged such that during operation contaminated water is transferred to the oil-water separator where oil is separated from the water to form oil reduced water and the oil reduced water flow through the first filter assembly to form a first filtered water solution, the first filtered water solution from the first filter assembly filters through the second filter assembly to form a recycled water solution and drops into the main tank a second distance of from about 1 to about 30 inches before contacting recycled water solution in the main tank.
"Also provided is a method of recycling a contaminated water solution from an oil or gas well comprising transferring contaminated water from an oil or gas well to an oil-water separator; separating oil from the contaminated water to form an oil reduced water solution; filtering the oil-reduced water solution through a first filter assembly having a first filter sheet under ambient pressure to form a first filtered water solution and allowing the first filtered water solution to flow into a second filter assembly; filtering the first filtered water solution through the second filter assembly having a second filter sheet of 10 micron or less filtration size under ambient pressure to form a recycled water solution and allowing the recycled water solution to drop a second distance into a main tank before contacting a surface of the recycled water solution being contained in the main tank, the second distance being sufficient to aerate the recycled water solution in the main tank."
For more information, see this patent: Miller,
Keywords for this news article include: Patents.
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