# US 2008/0185320 A1 · System for deodorizing and neutralizing waste-water

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- Number: US 2008/0185320 A1
- Document ID: US20080185320A1
- Status: Published application
- Kind: A1
- Application number: 12/011,097
- Filed: 2008-01-24
- Published: 2008-08-07
- Earliest claimed: 2007-02-07
- Inventors: Kevin Leon Buchanan
- Web page: https://patentgrep.com/patent/US20080185320A1

## CPC

- C02F 1/686: {Devices for dosing liquid additives}
- C02F 2209/005: Processes using a programmable logic controller [PLC]
- C02F 2209/40: Liquid flow rate
- C02F 2209/42: Liquid level
- C02F 2303/02: Odour removal or prevention of malodour
- C02F 2303/08: Corrosion inhibition
- 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)

## Abstract

A system for injecting odor and/or corrosion control chemical(s) into sewage, having provision to maintain substantial constancy in the ratio between odor and/or corrosion control chemical(s), and material entering the wet well.

## Claims

### Claim 1

A system or device for applying treatment-chemical(s) to the contents of a vessel, comprising;
a container vessel
a container vessel contents level-sensing means;
a container vessel contents level rate of change sensing means;
a container vessel contents inflow;
a container vessel contents outflow;
an outflow control means;
a treatment-chemical(s) reservoir;
a treatment-chemical(s) injection means;
a treatment-chemical(s) injection control means;
a logic unit;
an interface between the logic unit and the container vessel contents level-sensing means;
an interface between the logic unit and the container vessel contents level rate of change sensing means;
an interface between the logic unit and the outflow control means;
an interface between the logic unit and the treatment-chemical(s) injection control means;
a function of the logic unit that receives input from the container contents level-sensing means and upon each occurrence of a predetermined degree of increase in the level of vessel contents, commands the treatment-chemical(s) injection control to inject a predetermined amount of treatment-chemical(s), and that, upon occurrence of each predetermined decrease in the level of vessel contents, resets itself as if to sense a zero increase or decrease state;
a function of the logic unit that receives input from the container contents level-sensing means and upon each occurrence of a predetermined higher level of vessel contents, commands the outflow-pump be begin operation, and upon occurrence of a predetermined lower level of container contents, commands the outflow-pump to cease operation;

### Claim 2

A system or device for applying treatment-chemical(s) to the contents of a vessel, comprising;
a container vessel
a container vessel contents level-sensing means;
a container vessel contents level rate of change sensing means;
a container vessel contents inflow;
an inflow rate sensing means;
a container vessel contents outflow;
a treatment-chemical(s) reservoir;
a treatment-chemical(s) injection means;
a treatment-chemical(s) injection control means;
a logic unit;
an interface between the logic unit and the container vessel contents level-sensing means;
an interface between the logic unit and the inflow rate sensing means;
an interface between the logic unit and the treatment-chemical(s) injection control means;
a function of the logic unit that receives input from the container contents level-sensing means and inflow rate sensing means, calculates the dosage of treatment chemicals required to maintain a desired concentration of treatment chemicals in the vessel contents, and commands the treatment-chemical(s) injection control means to inject that appropriate dosage of treatment-chemical(s), into the container vessel.

### Claim 3

A system or device for applying treatment-chemical(s) to the contents of a vessel, comprising;
a container vessel
a container vessel contents level-sensing means;
a container vessel contents level rate of change sensing means;
a container vessel contents inflow;
an inflow rate sensing means;
a container vessel contents outflow;
a treatment-chemical(s) reservoir;
a treatment-chemical(s) injection means;
a treatment-chemical(s) injection control means;
a logic unit;
an interface between the logic unit and the container vessel contents level-sensing means;
an interface between the logic unit and the inflow rate sensing means;
an interface between the logic unit and the treatment-chemical(s) injection control means;
a function of the logic unit that receives input from the container contents outflow rate sensing means and inflow rate sensing means, calculates the dosage of treatment chemicals required to maintain a desired concentration of treatment chemicals in the vessel contents, and commands the treatment-chemical(s) injection control means to inject that appropriate dosage of treatment-chemical(s), into the container vessel.

### Claim 4

A system or device for applying treatment-chemical(s) to the contents of a vessel, comprising;
a container vessel
a container vessel contents level-sensing means;
a container vessel contents inflow;
a container vessel contents outflow;
a container vessel contents outflow, or outflow-pump, operation sensing means
a treatment-chemical(s) reservoir;
a treatment-chemical(s) injection means;
a treatment-chemical(s) injection control means;
a logic unit;
an interface between the logic unit and the container vessel contents level-sensing means;
an interface between the logic unit and the container vessel contents outflow, or outflow-pump, operation sensing means
an interface between the logic unit and the treatment-chemical(s) injection control means;
a function of the logic unit that receives input from the container contents level sensing means and from the outflow operation sensing means, based on these, calculates the dosage of treatment chemicals required to maintain a desired concentration of treatment chemicals in the vessel contents, and commands the treatment-chemical(s) injection control means to inject that appropriate dosage of treatment-chemical(s), into the container vessel.

### Claim 5

A system or device for applying treatment-chemical(s) to the contents of a vessel, comprising;
a container vessel
a container vessel contents level-sensing means;
a container vessel contents inflow;
a container vessel contents outflow;
a treatment-chemical(s) reservoir;
a treatment-chemical(s) injection means;
a treatment-chemical(s) injection control means;
a logic unit;
an interface between the logic unit and the container vessel contents level-sensing means;
an interface between the logic unit and the treatment-chemical(s) injection control means;
a function of the logic unit that receives input from the container contents level sensing means, and, based on this, calculates the dosage of treatment chemicals required to maintain a desired concentration of treatment chemicals in the vessel contents, and commands the treatment-chemical(s) injection control means to inject that appropriate dosage of treatment-chemical(s), into the container vessel.