Apparatus for water treatment using filtration or a membrane separation method

A technology of water treatment and equipment, applied in the direction of semi-permeable membrane separation, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of membrane or filter pollution, impossible to remove the membrane, etc., to achieve a compact device, Inexpensive effect

Inactive Publication Date: 2013-06-12
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, the formation of the overlay is irreversible, making removal impossible and requiring replacement of the entire membrane
Furthermore, membranes

Method used

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  • Apparatus for water treatment using filtration or a membrane separation method
  • Apparatus for water treatment using filtration or a membrane separation method
  • Apparatus for water treatment using filtration or a membrane separation method

Examples

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Example Embodiment

[0025] figure 1 The first application example of the present invention in the membrane separation method is shown. In the schematic diagram, a housing 10 of an apparatus for water treatment is shown. A membrane 12 designed as an anode is arranged therein, which separates the inflow or retentate side 14 from the outflow side 16 of the device. The cathode 18 is arranged on the discharge side 16.

[0026] The fluid supplied as the supply 20 passes through the membrane 12. Here, the substance to be separated stays on the inflow side 14 and is concentrated there and discharged as a retentate 22. At the same time, the DC or AC voltage applied between the cathode 18 and the anode leads to the formation of oxygen or chlorine-based oxidized or bactericidal components. Here, water is decomposed into oxygen and hydrogen through an electrochemical reaction. Here, as a by-product, ozone (O 3 ) And OH groups to generate hydrogen peroxide (H 2 O 2 ). This substance has a bactericidal effec...

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PUM

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Abstract

An apparatus for water treatment is proposed that comprises a means for mechanical separation constructed as a membrane (12) or filter surface, such that the means for mechanical separation is constructed as an anode and a cathode (18) is arranged at a distance therefrom.

Description

technical field [0001] The invention relates to a device for water treatment by filtration or membrane separation. Background technique [0002] For the treatment of raw water or process water or waste water, different methods are used in separate process stages. Mechanical cleaning by filtration or membrane separation methods is known. In filters used in dead-end mode, but also in membranes used in so-called cross-flow filtration, a coating develops over time. This coating impairs the function of the filter or membrane and has to be removed with high energy and technical costs. In some cases, the formation of the covering layer is irreversible, such that removal is impossible and the entire membrane needs to be replaced. Furthermore, the membranes or filters are easily contaminated by microorganisms such as algae or bacteria, so that germicidal chemicals must be used which form unwanted by-products. [0003] The chemical treatment of raw water, process water or waste wa...

Claims

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Application Information

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IPC IPC(8): C02F1/44C02F1/467B01D61/42
CPCC02F1/4672B01D61/425B01D71/022B01D2313/345B01D2313/365B01D2315/08B01D2315/10B01D2325/26C02F1/44C02F2001/46142C02F2001/46147
Inventor 齐格弗里德·埃格纳
Owner FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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