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Method for treating untreated salt water for producing treated water, thus produced treated water and device for carrying out said method

A technology of process water and raw water, applied in the direction of water treatment parameter control, mixing method, precipitation treatment, etc., can solve the problems of destroying electrochemical reactions, reduce process costs, minimize the amount of raw materials and waste, avoid mixing and/or or the effect of the homogenization step

Active Publication Date: 2013-05-01
WME风能发电海水淡化有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] However, some types of impurities in brine such as alkaline earth metal ions and dissolved or undissolved foreign substances may disrupt the electrochemical reaction

Method used

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  • Method for treating untreated salt water for producing treated water, thus produced treated water and device for carrying out said method
  • Method for treating untreated salt water for producing treated water, thus produced treated water and device for carrying out said method

Examples

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Embodiment Construction

[0108] figure 1 The electrodialysis system 1 shown in includes an electrodialysis cell 2 , a storage vessel 4 for the catholyte K, a reaction vessel 6 , a storage vessel 8 for the anolyte A and a storage vessel 10 for the product P.

[0109]The electrodialysis cell 2 has a cathode compartment 12 , a product compartment 14 and an anode compartment 16 . The cathode compartment 12 is separated from the product compartment 14 by an anion exchanger membrane 18 . The anode compartment 16 is separated from the product compartment 14 by a cation exchanger membrane 20 . A cathode 22 , which is surrounded by a catholyte K, is arranged in the cathode space 12 . Similarly, an anode 24 surrounded by an anolyte A is provided in the anode compartment 16 .

[0110] The storage container 4 for the catholyte K has any shape, preferably cylindrical. The reaction vessel 6 has a cylindrical shape, preferably a conical shape. The storage container 8 for the anolyte A and the storage container ...

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Abstract

The invention relates to a method for treating untreated salt water (RW), thus produced treated water (PW) and a device for carrying out said method. Said method consists of the following steps: a) untreated water (RW) is provided; b) a mixture (M) is produced by mixing the untreated salt water (RW) with an aqueous solution containing hydroxide ions (HL); c) the solid (FS) formed from the mixture (M) is sedimented by forming an essentially clear liquid (U); and d) treated water (PW) is extracted from the essentially clear liquid (U).

Description

technical field [0001] The invention relates to a method for treating saline raw water according to claim 1 , process water according to claim 20 and an apparatus for carrying out the method according to claim 23 . Background technique [0002] Natural brines such as seawater, relatively saline groundwater, waters containing even higher salt concentrations such as seawater concentrates, naturally or synthetically produced brines (Sole) with a salt content of at least 0.4 to more than 20% by weight are used in many applications: [0003] Seawater is used as raw material or raw water in the production of drinking water by desalination of seawater, its common salt content being in the range of about 1 to 5% by weight. [0004] These natural brines are also used as a source which can be used to obtain crystalline salts for the chemical industry, food preparation, water treatment, for example as ion exchange salts, deicing salts (Streusalz) etc. [0005] Furthermore, natural bri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/46C02F1/469C02F1/52C02F1/66C02F5/02B04C3/00B01D61/44C25B1/10B01F3/08C02F103/08
CPCC02F1/66C02F1/72C02F1/52B01D61/44B01D21/2411C02F5/02C02F2209/06C02F2103/08Y02E60/366C02F1/4693C25B1/10C02F1/68C02F2001/007C02F2209/40Y02E60/36
Inventor R.赫斯R.沃德里奇U.普兰蒂科夫
Owner WME风能发电海水淡化有限责任公司
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