水处理系统毕业论文外文资料及译文

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1、Water Treatment System 1, the automatic water softener works: The hardness of the water main by one of the cations: calcium (Ca2 +), magnesium (Mg2 +) ion composition.Ion exchange method is the use of ion exchange resins in the exchangeable cations (eg Na, H), the water contains Ca, Mg exchange out

2、of the water decreased Ca, Mg content, a process known as water softening, the use ofdevice called ion exchange, also known as water softeners.As with the hardness of raw water through the exchanger resin layer, the water of calcium and magnesium ions adsorbed by the resin, while the release of sodi

3、um ions, so that the water comes out of the switch is softened to remove hardness ions, when the resin adsorption of calciumand magnesium ions up to a certain degree of saturation, the water hardness increases, then water softener will be automatically carried out according to a predetermined failur

4、e of regeneration of the resin, the use of higher concentrations of sodium chloride solution (salt water) through the resin, the failurerestore the resin to the sodium resin. 2, the main features of automatic softener: 1) The high degree of automation, water conditions, long service life.Full automa

5、tic, just on a regular basis with salt, without human intervention. 2) high efficiency, low energy consumption, low operating costs.The overall design of the water softener is reasonable, the exchange capacity of the resin given full play, the energy consumption of the device itself was significantl

6、y lower than the general index softened water equipment, automatic control devices do not need full-time operators, which gave the user withto many of the facilities, and produce good economic returns. 3) equipment, compact structure, small footprint, no special equipment foundation, placed on the flat concrete floor can be. 4) easy to use, installation, commissioning, operation is simple, stable performance control unit, able to remove the users worries. 5) corrosion resistance, anti-pollution