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去离子水的工艺大致可分为四种

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去离子水的工艺大致可分为四种

发布日期:2018-03-13 15:37 来源:http://www.btimt.com 点击:

第一种:采用阳阴离子交换树脂取得的去离子水,一般通过之后,出水电导率可降到10us/cm以下,再经过混床就可以达到1us/cm以下了。但是这种方法做出来的水成本极高,而且颗粒杂质太多,达不到理

  

  The first one: the cation and anion exchange resin to obtain deionized water, usually by then, the effluent conductivity is reduced to below 10us/cm, and then through the mixed bed can reach 1us/cm below. But the water made by this method is very expensive, and there are too many particles of impurities that can't reach the reason.

  

  想的要求。已较少采用了。

  

  Want to ask. It has been less used.

  

  第二种:预处理(即砂碳过滤器+精密过滤器)+反渗透+混床工艺

  

  Second kinds of pretreatment (i.e. sand carbon filter + precision filter) + ro + mixed bed process

  

  这种方法是目前采用最多的,因为反渗透投资成本也不算高,可以去除90%以上的水中离子,剩下的离子再通过混床交换除去,这样可使出水电导率:0.06左右。这样是目前最流行的方法。

  

  This method is most commonly used in the reverse osmosis because investment cost is not high, the water can be removed more than 90% of the ion, ion exchange and through the rest of the mixed bed removed, so that the water conductivity is about 0.06. This is the most popular method at present.

  

  第三种:采用两级反渗透方式

  

  The third kind: using the two level reverse osmosis method

  

  其流程如下:

  

  The process is as follows:

  

  自来水→多介质过滤器→活性炭过滤器→软化水器→中间水箱→低压泵→精密过滤器→一级反渗透→PH调节→混合器→二级反渗透(反渗透膜表面带正电荷)→纯水箱→纯水泵→微孔过滤器→用水点   第四种:前处理与第二种方法一样使用反渗透,只是后面使用的混床采用EDI连续除盐膜块代替,这样就不用酸碱再生树脂,而是用电再生。这就彻底使整个过程无污染了,经过处理后的水质可达到:15M以上。但这这种方法的前期投资比较多,运行成本低。根据各公司的情况做适当的投资。最好不过了。 其流程如下:

  

  Tap water, multi medium filter, activated carbon filter, water softener, water tank, pressure pump, precision filter, reverse osmosis, PH regulation, mixer, two reverse osmosis (RO membrane surface with positive charge), pure water tank, water pump, water, microporous filter fourth: pretreatment with second methods of using reverse osmosis, just behind the use of the mixed bed EDI continuous desalting membrane block instead, instead of acid-base regeneration resin, but with the electroregeneration. This makes the whole process pollution-free, and the treated water can be reached: more than 15M. However, this method has more investment and low operating cost. Make appropriate investment according to the situation of each company. It's best. The process is as follows:

  

  原水→多介质过滤器→活性炭过滤器→软化水器→中间水箱→低压泵→PH值调节系统→高效混合器→精密过滤器→高效反渗透→中间水箱→EDI水泵→EDI系统→微孔过滤器→用水点

Raw water, multi-media filter, activated carbon filter, softener, intermediate water tank, low pressure pump, pH regulation system, high efficiency mixer, precision filter, efficient reverse osmosis, intermediate water tank, EDI water pump, EDI system, microporous filter, water point.

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