# US 10,370,262 B2 · Water reclamation system and method

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- Number: US 10,370,262 B2
- Document ID: US10370262B2
- Status: Granted
- Kind: B2
- Application number: 16/265,555
- Filed: 2019-02-01
- Published: 2019-05-30
- Granted: 2019-08-06
- Earliest claimed: 2015-10-30
- Applicants: Edward Beverly Moe; James Thomas Oakes
- Inventors: Edward Beverly Moe; James Thomas Oakes
- Web page: https://patentgrep.com/patent/US10370262B2

## CPC

- C02F 1/006: {Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks (for settling tanks B01D21/24)}
- B01D 17/0208: {by sedimentation}
- B01D 29/01: with flat filtering elements (B01D29/39 takes precedence)
- B01D 29/684: {with a translatory movement with respect to the filtering element}
- B01D 29/965: {Device for changing the inclination of the filtering element}
- B01D 33/722: {containing fixed liquid displacement elements or cores}
- B01D 33/801: {Driving means, shaft packing systems or the like}
- C02F 1/40: Devices for separating or removing fatty or oily substances or similar floating material (cleaning or keeping clear the surface of open water from oil or like materials E02B15/04; devices in sewers for separating liquid or solid substances from sewage E03F5/14, e.g. for use in drains leading to the sewer E03F5/16)
- C02F 1/52: by flocculation or precipitation of suspended impurities {(C02F1/463 takes precedence)}
- C02F 2101/101: {Sulfur compounds}
- C02F 2101/103: {Arsenic compounds}
- C02F 2101/20: Heavy metals or heavy metal compounds
- C02F 2101/203: {Iron or iron compound}
- C02F 2101/22: Chromium or chromium compounds, e.g. chromates
- C02F 2101/32: Hydrocarbons, e.g. oil
- C02F 2103/007: {Contaminated open waterways, rivers, lakes or ponds}
- C02F 2103/10: from quarries or from mining activities
- C02F 2103/20: from animal husbandry
- C02F 2103/28: from the paper or cellulose industry
- C02F 2103/325: {from processes relating to the production of wine products}
- C02F 2103/365: {from petrochemical industry (e.g. refineries)}
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)

## Abstract

A system may include a catch tray coupled with a flow distributor. A mesh screen and carriage may be positioned within the catch tray. A drive bar may be coupled with the carriage and a pitman arm. A gear box may be coupled with a motor and the pitman arm. A process may include distributing contaminated fluid onto the mesh screen. A screen plane of the mesh screen may be at a screen angle that is oblique relative to the direction of the force of gravity. The screen plane is defined by a top surface of the mesh screen. The process may include moving the carriage in a reciprocating linear motion by rotating the pitman arm, and spraying a liquid onto the mesh screen. Liquid may flow through the mesh screen forming clarified liquid, and contaminate may move along the top of the mesh screen to a contaminate outlet.

## Claims

### Claim 1

A process comprising:
distributing a contaminated fluid comprising liquid and contaminate onto a top of a mesh screen, wherein the mesh screen is positioned in a catch tray, wherein the mesh screen is static, and wherein a screen plane of the mesh screen is at a screen angle that is oblique relative to the direction of the force of gravity, wherein the screen plane is defined by a top surface of the mesh screen;
moving a carriage within the catch tray in a reciprocating linear motion, wherein the carriage comprises one or more conduits with one or more nozzles, wherein moving the carriage comprises rotating a pitman arm coupled to a drive bar, wherein the drive bar is coupled with the carriage; and
spraying a liquid onto a bottom of the mesh screen from the one or more nozzles of the carriage, wherein the liquid of the contaminated fluid flows through the mesh screen forming clarified liquid, wherein the clarified liquid flows through a clarified liquid outlet in the catch tray, and wherein the contaminate moves along the top of the mesh screen to a contaminate outlet of the catch tray.

### Claim 2 (depends on 1)

The process of claim 1, wherein the liquid that is sprayed from the one or more nozzles is the clarified liquid.

### Claim 3 (depends on 1)

The process of claim 1, wherein the contaminated fluid is distributed onto the top of the mesh screen with a flow distributor that comprises an inlet, an outlet, and one or more baffles located within the flow distributor between the inlet and outlet, wherein the flow distributor mixes the contaminated fluid and distributes the contaminated fluid onto the mesh screen.

### Claim 4 (depends on 1)

The process of claim 1, further comprising combining the contaminated fluid with a chemical additive upstream of the mesh screen, wherein the chemical additive comprises a flocculant, a coagulant, prehydrated bentonite, an acid, a base, a biocide, a gel breaker, or a surfactant.

### Claim 5 (depends on 1)

The process of claim 1, further comprising supplying the contaminate from the contaminate outlet to a separator, and separating remaining liquid from the contaminate using the separator.

### Claim 6 (depends on 5)

The process of claim 5, further recycling the separated remaining liquid from the separator, and distributing the separated remaining liquid with the contaminated fluid onto the top of the mesh screen.

### Claim 7 (depends on 1)

The process of claim 1, further comprising positioning the catch tray such that the screen plane is at the screen angle that is oblique relative to the direction of the force of gravity.

### Claim 8 (depends on 1)

The process of claim 1, wherein the contaminated fluid is a drilling mud, an air drilling misting fluid, produced water, frac fluid, washdown water from an oil refinery or petrochemical plant, wastewater from an oil refinery or petrochemical plant, dredged slurry, sewage slurry, paper pulp slurry, wine dreg slurry, wastewater from a factory, mixtures of water and bedding from an animal farm, slurry obtained by cleaning a sewer pipe, slurry obtained by cleaning a pipeline that is not a sewer pipe; or contaminated water from a body of water.

### Claim 9 (depends on 1)

The process of claim 1, wherein the liquid of the contaminated fluid is water.

### Claim 10 (depends on 1)

The process of claim 1, wherein the contaminate comprises flocculated solid or coagulated solid.

### Claim 11 (depends on 1)

The process of claim 1, wherein the contaminate comprises metal, bacteria, or oil.

### Claim 12 (depends on 1)

The process of claim 1, wherein the contaminate comprises arsenic, cadmium, mercury, lead, chromium, iron sulfide, iron oxide, or entrained hydrocarbons.

### Claim 13 (depends on 1)

The process of claim 1, wherein the contaminate comprises oil, and wherein the clarified liquid is water containing less than 300 ppm hydrocarbons.

### Claim 14 (depends on 1)

The process of claim 1, wherein the clarified liquid has a reduced chemical oxygen demand (COD) and a reduced biological oxygen demand (BOD) relative to the COD and BOD of the contaminated fluid.

### Claim 15 (depends on 1)

The process of claim 1, further comprising, if the contaminated fluid has a solids content of 3 weight percent or more, then mechanically separating a portion of solids from the contaminated fluid prior to distributing the contaminated fluid on the top of the mesh screen until the contaminated fluid has a solids content of less than 3 weight percent.

### Claim 16 (depends on 1)

The process of claim 1, further comprising passing the contaminated fluid through an oil-water separator upstream of the flow distributor.
