# US 11,325,844 B2 · Decontamination method and apparatus for effluents

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- Number: US 11,325,844 B2
- Document ID: US11325844B2
- Status: Granted
- Kind: B2
- Application number: 16/720,980
- Filed: 2019-12-19
- Published: 2020-04-23
- Granted: 2022-05-10
- Earliest claimed: 2014-01-03
- Assignees: Pharmtec SA
- Applicants: Pharmtec SA
- Inventors: Mats Mickos
- Web page: https://patentgrep.com/patent/US11325844B2

## CPC

- C02F 1/02: by heating (methods of steam generation F22B; preheating boiler feed-water or accumulating preheated boiler feed-water F22D)
- C02F 1/041: {by means of vapour compression}
- C02F 2101/30: Organic compounds
- C02F 2303/04: Disinfection
- 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

An apparatus and method for decontamination of effluent, includes connecting a first ejector to source of a first motive fluid, directing from the first ejector first motive fluid into piping connected to a source of effluent thus causing the effluent to stream in the piping and simultaneously causing the effluent to be heated, and controlling the directing of the first motive fluid in such a way that a predetermined thermal effect is achieved.

## Claims

### Claim 1

A method for decontamination of effluent, comprising:
connecting a first ejector (2) to source of a first motive fluid;
directing from the first ejector (2) first motive fluid into piping connected to a source of effluent thus causing the effluent to stream in the piping and simultaneously causing the effluent to be heated; and
controlling the directing of the first motive fluid in such a way that a predetermined thermal effect is achieved;
the method further comprising removing air from the piping with pulses of steam prior to causing the effluent to stream into the piping.

### Claim 2 (depends on 1)

The method of claim 1, further comprising holding the effluent in a treatment tank (4) for a predetermined time at a predetermined temperature; and emptying the treatment tank (4) by injecting a second motive fluid into piping connecting the treatment tank (4) to the outlet.

### Claim 3 (depends on 1)

The method of claim 1, further comprising directing first motive fluid from a further ejector (12) into the stream of effluent downstream from the first ejector (2) thus causing the effluent to be heated further.

### Claim 4 (depends on 1)

The method of claim 1, wherein directing the first motive fluid is done in such a way as to inhibit the effluent from returning to the source of the effluent.

### Claim 5 (depends on 1)

The method of claim 1, further comprising measuring the temperature of the effluent being decontaminated.

### Claim 6 (depends on 1)

The method of claim 1, further comprising leak testing prior to causing the effluent to flow in the piping.