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1, Summarize
Yin and Yang, the two kinds of ion exchange resin, mutual fully in a mixed in ion exchanger, meanwhile, Yang, anion exchange equipment. "Mixed bed. The so-called mixed bed, is a percentage of Yang, anion exchange resin mixed loading in the same exchange device, the fluid exchange, removing the ions. Because the ratio of Yin Yang resin resin, so in the mixed bed Yin resin in the Yang resin in next. A BanYang, Yin resin ratio of 1:2 loading, also have loading ratio of 1:1. 5, can consider to choose appropriate according to different resin. Mixed bed body also is divided into synchronous regenerative mixed bed and in vitro regeneration type mixed bed. Synchronous regenerative mixed bed in operation and the whole process of regeneration are both in the mixed bed, regeneration in when not remove equipment resin outside, and Yang, Yin resin and regeneration, therefore needed less accessory equipment and easy operation.
2, Working principle
The anion and cation exchange resin placed in the same switch, in operation before they even mix with, so can look at is by countless Yin, Yang exchange resin crisscross is arranged the multistage type after bed, the water contained salt of anion and cation through the switch, it will be resin exchange, and to be highly pure water. In the mixed bed, the Yin and Yang resin is mutual, so its were anion and cation exchange reaction, or almost at the same time, the water cation exchange and anion exchange is DuoCi crisscross, produced by the clearing house H H + and after OH type from the clearing house-OH can't accumulates, basically eliminate the effect of ion exchange, a thoroughly. Because the bed into mixed primary pure water quality is good, the switch load is lighter, resin exchange capacity is very long time to quilt depletion. This mixed bed in the microorganism method, the first use of two kinds of regenerative resin, the proportion of different with the right to wash anion and cation exchange resin is completely separated, Yang resin next, Yin resin sedimentary float to the top, and then Yang resin with hydrochloric acid (or sulfuric acid) regeneration, Yin resin regeneration in caustic soda.
3, Characteristics
The water good water quality, water close to neutral pH value.
Stable discharging water, the short time operation condition change (such as the incoming water or components, operation flow velocity, etc.) to mixed bed a little effect on water.
Runtime to little effect on the quality of the output, restore to halt the time needed for water quality before is shorter.