# US 11,441,297 B2 · Wastewater re-use systems

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- Number: US 11,441,297 B2
- Document ID: US11441297B2
- Status: Granted
- Kind: B2
- Application number: 16/845,832
- Filed: 2020-04-10
- Published: 2020-07-30
- Granted: 2022-09-13
- Earliest claimed: 2010-07-29
- Applicants: Jerry L. McKinney
- Inventors: Jerry L. McKinney
- Web page: https://patentgrep.com/patent/US11441297B2

## CPC

- E03B 1/041: {Greywater supply systems}
- B01D 21/0018: {provided with a pump mounted in or on a settling tank}
- B01D 21/02: Settling tanks {with single outlets for the separated liquid}
- B01D 21/2444: {Discharge mechanisms for the classified liquid}
- C02F 3/02: Aerobic processes
- C02F 2103/002: {Grey water, e.g. from clothes washers, showers or dishwashers}
- C02F 2103/005: {Black water originating from toilets}
- E03B 2001/045: {using household water}
- Y02W 10/10: Biological treatment of water, waste water, or sewage
- E03B: INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER (drilling wells, obtaining fluids in general from wells E21B; pipe-line systems in general F17D)
- 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)
- 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)
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

A wastewater reuse system has a wastewater treatment system connected to a dwelling for receiving wastewater therefrom. The wastewater treatment system has a pump tank with an outlet that can be connected to a central wastewater collection system and/or a re-use recipient of treated wastewater such as an irrigation system.

## Claims

### Claim 1

A wastewater reuse system operatively connectable to a dwelling for humans, said dwelling being located at a site, said reuse system comprising:
a pretreatment tank connectable to said dwelling to receive black water comprising human waste solids from said dwelling and allowing settling of said solids in said black water to produce an at least partially clarified black water;
a holding tank displaced from said pretreatment tank for receiving said at least partially clarified black water from said pretreatment tank;
a transfer line from said holding tank, said transfer line being operable to be connected to a sewage line forming part of a central wastewater treatment system;
a drip irrigation system on said site, said drip irrigation system being the sole method of disposing of said partially clarified black water on site, there being no aerobic wastewater treatment used; and
a pump connected to said holding tank and selectively operable for pumping said at least partially clarified black water from said holding tank to said drip irrigation system.

### Claim 2 (depends on 1)

The wastewater reuse system of claim 1, wherein there is a filter between said pump and said drip irrigation system.

### Claim 3 (depends on 1)

The wastewater reuse system of claim 1, wherein said transfer line comprises a gravity flow line.

### Claim 4 (depends on 1)

The wastewater reuse system of claim 1, wherein said pretreatment tank is free of any filter media.