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Electrodialysis unit for water treatment

An electrodialysis and electrode technology, applied in the field of water treatment, can solve serious problems such as the environment, industry and human health.

Inactive Publication Date: 2013-12-11
海洋保护公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There may be no natural predators of these species at the point of discharge, and they can colonize and reproduce in new locations, causing serious problems for the environment, industry and human health

Method used

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  • Electrodialysis unit for water treatment
  • Electrodialysis unit for water treatment
  • Electrodialysis unit for water treatment

Examples

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Embodiment Construction

[0110] figure 1The arrangement uses electrodialysis units in ballast water treatment systems, but recognizes that there are other applications where electrodialysis units are preferred and that electrodialysis units can be tailored to suit different requirements. In particular, it should be understood that the electrodialysis unit described herein may be used for ballast water treatment, or for other water treatment applications, without the need for a combination figure 1 Other treatment types shown in exemplary arrangements.

[0111] therefore, figure 1 A ballast water treatment system comprising an electrodialysis unit 8 is illustrated. In this example, the water is filtered and then treated through the cavitation unit 10 , the gas injection unit 14 and the electrodialysis unit 8 . This series of treatments destroys and kills organisms in the water. As well as affecting organisms in the water, the nitrogen added to the water at the injection device 14 reduces the dissol...

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PUM

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Abstract

An electrodialysis unit 8 comprises a plurality of cathodes 68, a plurality of anodes 70 and a plurality of membranes 71; wherein the cathodes 68 and anodes 70 are arranged alternately in an electrode stack, with membranes 71 in between each cathode 68 and anode 70; and wherein the cathode 68 and the anode 70 are each formed of a single conductive plate such that both surfaces of the cathode plates and anode plates enclosed within the electrode stack are, in use, in conductive contact with the water being treated.

Description

technical field [0001] The present invention relates to the treatment of water by electrodialysis, such as treatment to kill microorganisms, preferably sea water, such as ballast water treatment. Background technique [0002] Ballast water is water carried by a ship in ballast tanks or sometimes in other suitable spaces such as cargo or oil tanks. It is pumped into the tank at the water "donor" location to compensate for changes in the center of gravity as cargo and / or fuel is unloaded / consumed, and thus maintain stability. Proper ballasting is essential from a structural point of view and also for performance reasons in order to ensure proper propeller and rudder immersion, proper bridge considerations and to maintain desired vessel movement and handling characteristics. Ballast water is transported to a water "holding" location, typically where the vessel is loaded with cargo, potentially outside the biogeographical region of the ballast water source. Ballast water can b...

Claims

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Application Information

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IPC IPC(8): C02F1/469B01D61/44
CPCB01D2313/105B01D2313/345C02F2001/46133C02F2103/008C02F2201/004C02F2201/4611B01D61/50B01D2313/08C02F2301/022C02F1/4693Y10T156/10B01D61/422C02F1/469H01M4/02
Inventor A·B·安德森
Owner 海洋保护公司
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