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US 5,647,977 AGranted
Method and apparatus for removing contaminants from industrial waste water
AssigneeHydrotreat, Inc.
InventorJohnny Arnaud
Life of this patent
Estimating the term…
Abstract
A system is provided for removing impurities anticipated to be found in industrial waste water, which system is particularly well suited for waste water systems such as those used for laundry or vehicle washing operations. The system includes aeration, mixing/flocculating, and contact media mechanisms to remove suspended solids, hydrocarbons, organic materials and undesired dissolved minerals from the treated water.
Claims23
A fluid treatment system adapted to remove contaminants from an aqueous fluid, comprising:
- an aeration section arranged to receive said aqueous fluid said aeration section comprising an air dispersal assembly for aerating said aqueous fluid and for separating lighter contaminants from said aqueous fluid;
- a suspended solids removal section arranged to receive said aqueous fluid from said aeration section, said suspended solids removal section including a mixing vessel for facilitating mixture of the aqueous fluid with flocculating agents and a separation assembly for establishing a laminar flow to promote settling of solid particles;
- and
- a contact media section adapted to receive said aqueous fluid from said solids removal section, said contact media section including a plurality of contact media adapted to contact said fluid, said contact media selected to remove at least one of the contaminants present in said aqueous fluid;
- wherein said sections are fluidly coupled together in a sequence.
2 more elements
A fluid treatment system adapted to remove contaminants from an aqueous fluid, comprising:
- an aeration section arranged to receive said aqueous fluid and containing an air injection assembly for aerating said aqueous fluid and for separating lighter contaminants from said aqueous fluid;
- a flocculating section arranged to receive said aqueous fluid, said flocculating section including a mixing vessel for facilitating mixture of the aqueous fluid with flocculating agents and a laminar flow inducing separation assembly;
- an organic removal section adapted to receive said aqueous fluid, said organic removal section including a contact media adapted to contact said aqueous fluid and to remove hydrocarbons and organic contaminants present in said aqueous fluid;
- and
- a demineralization section arranged to receive said aqueous fluid, said demineralization section including a contact media selected to remove undesired minerals from said aqueous fluid;
- wherein the sections are fluidly coupled such that said aqueous fluid flows through each section.
3 more elements
A water treatment system for removing contaminants from a treatment water influent, comprising:
- an aeration column for receiving said treatment water and to aerate said treatment water, said column including an air inlet for injecting flow of air through said treatment water;
- a chemical reaction vessel arranged to receive the treatment water from the aeration column and mix said treatment water with at least one desired chemical to form an aqueous mixture;
- a laminar flow separator assembly operably coupled to receive said aqueous mixture and configured to separate solids from said aqueous mixture yield an aqueous fluid;
- a filtration system arranged to receive said aqueous fluid from said laminar flow separator assembly, said filtration system including a media for filtering remaining solids from said fluid to yield a filtered fluid;
- a first contact media vessel arranged to receive said filtered fluid, said first contact media vessel containing a first contact media selected to remove selected organic contaminants from said filtered fluid;
- and
- a second contact media vessel arranged to receive said filtered fluid from said first contact media vessel, said second contact media vessel containing a second contact media, said second contact media selected to remove selected organic contaminants from said filtered fluid.
4 more elements
A water treatment system, comprising:
- a first filtration system having a filter media for receiving water to be treated and for removing particulate matter in excess of a predetermined size therefrom;
- an aeration column adapted to receive filtered water from said first filtration stage and to subject said water to an upwardly percolating flow of air from an air inlet to initiate separation of relatively lighter contaminants from said water prior to discharge;
- a chemical mixing vessel coupled to receive water discharge from said aeration column and comprising means to induce agitated motion to said water so as to promote mixing of said water with another substance to promote separation of solids from said water prior to discharge from said mixing vessel;
- a second filtration system adapted to receive water discharge from said mixing vessel and to remove particulate matter therefrom;
- a first contact media section adapted to receive water from said second filtration system, the first contact media section comprising at least one contact media selected to remove organic contaminants remaining in said water;
- a second contact media section adapted to receive water from said first contact media section, the second comet media section including a second contact media comprising a contact media selected to kill bacteria;
- a third contact media section adapted to receive water from said second contact media section, the third contact media section including an anion exchange resin as a
- a fourth contact media section adapted to receive water from said third contact media section the fourth contact media section comprising a cation exchange resin as a contact media;
- and
- a fifth contact media section adapted to receive water from said fourth contact media section the fifth contact media section comprising an anion exchange resin as a contact media.
7 more elements
A fluid treatment system adapted to remove contaminants from an aqueous fluid, comprising:
- an aeration system including an aeration column for receiving said aqueous fluid and to aerate said aqueous fluid to separate some contaminants therein from said aqueous fluid;
- a suspended solids removal section comprising,
- a tank coupled to receive said aqueous fluid from said aeration section,
- a pump coupled to said tank to withdraw a portion of said aqueous fluid therefrom,
- and to reintroduce said aqueous fluid into said tank under pressure, and
- a flow separation assembly including a laminar flow inducing portion for promoting removal of suspended solids from said aqueous fluid in said tank prior to discharge of said aqueous fluid;
- an organic removal section adapted to receive said aqueous fluid from said suspended solids removal section adapted to receive said aqueous fluid from said suspended solids removal section and to remove at least a portion of organic contaminants present in said aqueous fluid;
- and
- a bacteria removal section adapted to receive said aqueous fluid from said organic removal section and including a first contact media for killing bacteria therein;
- and
- a demineralization section arranged to receive said aqueous fluid from said bacteria removal section and including a second contact media for removing dissolved minerals therein.
8 more elements
Dependencies are inferred from the claim text.