# US 2017/0283277 A1 · Solar Thermal Device for the Treatment of Drinking Water

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2017/0283277 A1
- Document ID: US20170283277A1
- Status: Published application
- Kind: A1
- Application number: 15/510,428
- Filed: 2015-09-09
- Published: 2017-10-05
- Earliest claimed: 2014-09-10
- Inventors: Daniel Kerschgens; Heinz Georg Russwurm
- Web page: https://patentgrep.com/patent/US20170283277A1

## CPC

- C02F 1/18: Transportable devices to obtain potable water
- B01D 1/0035: {Solar energy (for treatment of water C02F1/14)}
- B01D 5/006: {with evaporation or distillation}
- B01D 5/0066: {Dome shaped condensation}
- C02F 1/048: {Purification of waste water by evaporation}
- C02F 1/14: using solar energy
- C02F 2201/004: Seals, connections
- C02F 2201/008: Mobile apparatus and plants, e.g. mounted on a vehicle
- Y02A 20/00: Water conservation; Efficient water supply; Efficient water use
- Y02A 20/208: Off-grid powered water treatment
- Y02A 20/211: Solar-powered water purification
- Y02A 20/212: Solar-powered wastewater sewage treatment, e.g. spray evaporation
- Y02W 10/37: using solar energy
- 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)
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

The invention relates to a portable, solar-thermal device for the treatment of drinking water from waste water, comprising an evaporation container that accommodates the waste water, a condensation apparatus having a flow connection to the evaporation container, and a separator arranged between the evaporation container and the condensation apparatus for separating and leading away the condensate obtained in the condensation apparatus. According to the invention, the separator has passage openings for the transfer of water vapor into the condensation apparatus, which is arranged on the top side of the device in the operating position of the device, and a drain opening for the condensate arising in the condensation apparatus, which drain opening can be connected to a collecting container, wherein the evaporation container, which is arranged on the bottom side of the separator, is designed as a flexible film bag.

## Claims

### Claim 1

A portable solar thermal apparatus for the treatment of drinking water from waste water, comprising an evaporation container that accommodates the waste water, a condensation device having a flow connection with said evaporation container, and a separator arranged between the evaporation container and the condensation device for separating and leading away the condensate obtained in the condensation device, wherein separator comprises passage openings for the transfer of water vapour into the condensation device, which is arranged on the top side of the apparatus in the operating position thereof, and a drain opening for the condensate obtained in the condensation device, which drain opening can be connected to a collecting container, wherein the evaporation container which is arranged on the bottom side of the separator is formed as a flexible film bag.

### Claim 2 (depends on 1)

The solar thermal apparatus according to claim 1, wherein the condensation device is formed as a folding container with great surface area, which after its unfolding forms a cooling rib structure whose inner surface is used as a condensation region.

### Claim 3 (depends on 1)

The solar thermal apparatus according to claim 1, wherein the flexible film bag unfolds after filling with waste water and is supported on the collecting container for example.

### Claim 4 (depends on 1)

The solar thermal apparatus according to claim 1, wherein the flexible film bag comprises an inner film which is dyed in dark or in black and a transparent outer film which is welded thereto at the edge side.

### Claim 5 (depends on 4)

The solar thermal apparatus according to claim 4, wherein the inner film of the flexible film bag comprises a thermal insulation layer.

### Claim 6 (depends on 1)

The solar thermal apparatus according to claim 1, wherein the separator comprises an adapter with a screw thread on the drain opening, with which it can be fastened to the screw connection of the collecting container, preferably a PET bottle.

### Claim 7 (depends on 1)

The solar thermal apparatus according to claim 1, wherein the passage openings of the separator are arranged in a substantially circular manner around the drain opening and comprise a preferably conically tapering collar.

### Claim 8 (depends on 1)

The solar thermal apparatus according to claim 1, wherein the separator comprises an outer flange region to which the flexible film bag is fastened on the one hand and the folding container of the condensation device on the other hand.

### Claim 9 (depends on 1)

The solar thermal apparatus according to claim 1, wherein the apparatus comprises an additional container which can be fastened, preferably attached, to the base of the collecting container, e.g., a PET bottle, wherein the separator plus the folded condensation device and the folded flexible film bag are arranged in the additional container.

### Claim 10 (depends on 9)

The solar thermal apparatus according to claim 9, wherein the additional container contains a means such as potassium permanganate in order to colour the waste water dark in the flexible film bag.