Treatment of water with hypobromite solution

A technology of hypobromite and solution, applied in the field of ultrapure water production, can solve problems such as suboptimal procedures

Active Publication Date: 2010-06-02
クリストウォーターテクノロジーアクチェンゲゼルシャフト
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this procedure is not optimal since the flocculation step is generally carried out a

Method used

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  • Treatment of water with hypobromite solution
  • Treatment of water with hypobromite solution
  • Treatment of water with hypobromite solution

Examples

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Embodiment Construction

[0059] Figure 1 shows the standard method for ultrapure water production according to the current state of the art. The method is subdivided into three sections, namely, pretreatment, supplementary treatment, and finishing.

[0060] Regarding pre-treatment, the water to be treated is transferred from the reservoir 101 via the filtered water tank 102 to the water tank 103 for deionized water. Between the reservoir 101 and the filtered water tank 102 , the water to be treated flows through a multimedia filter 104 and an activated carbon filter 105 . A flocculant may be added to the water via input line 106 prior to being introduced into the multimedia filter 104 and an antimicrobial agent may be added to the water via input line 107 prior to being introduced into the filtered water tank 102 . A cation exchanger 108 and an anion exchanger 109 are arranged downstream of the filtered water tank 102 . Downstream of the tank 103 for deionized water, the water is introduced into a r...

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PUM

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Abstract

A process is described for treating water, in particular for producing ultrapure water, in which a water stream is passed through a plurality of treatment stages in which inorganic and/or organic species which are present in the water are separated off, wherein an aqueous hypobromite solution is added to the water stream in at least one of the stages. Furthermore, a water treatment system for carrying out such a process is described, comprising one or more means for separating off inorganic and/or organic species from a water stream, characterized by at least one device for generating hypobromite solution, which device is connected to the water stream via at least one hypobromite feed line.

Description

technical field [0001] The invention relates to a method for treating water, in particular for producing ultrapure water, in which a water stream is passed through a plurality of treatment stages in which inorganic and / or organic substances present in the water are separated. Furthermore, the invention relates to a water treatment system for carrying out such a method. Background technique [0002] Water treatment is currently gaining in importance, especially in the field of obtaining drinking water, and in the production of high-purity process water. Especially in the latter case, particularly high demands are placed on the purity of the water, for example in the case of process water for semiconductor production. In semiconductor production, for example, water of extremely high purity is required for rinsing silicon wafers, especially after etching processes. [0003] The starting point for producing the required high-purity water is common surface water such as river w...

Claims

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Application Information

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IPC IPC(8): C02F1/76C02F103/04C02F101/38
CPCC02F1/441C02F1/32C02F1/766C02F1/722C02F2103/04C02F2101/38C01B11/20C02F1/444C02F1/42C02F1/76
Inventor G·科利奥斯J·约翰M·比森A·米勒
Owner クリストウォーターテクノロジーアクチェンゲゼルシャフト
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