Advantages: 
 (1) effluent quality, effluent pH close to neutral. 
 (2) water quality and stability, short-term operating conditions change (such as water quality or composition, running velocity) the water quality of the mixed bed. 
 (3) intermittent run small impact on water quality and restore the outage before the water quality required for a relatively short time. 
 Mixed bed equipment is relatively easy to use or plexiglass column that because layered easier to see clearly when. 
 Operate, the regeneration effect. I kind of A3 steel, one as the hole really good trouble, stratification can not see. 
 How it works: 
 Mixed bed ion exchange, anion and cation exchange resin is placed in the same switching device, before running them uniformly mixed, so can be looked at by numerous yin and yang exchange resin staggered multi-level rehabilitation beds, The water contained in the Yin of the salts, the cations through the exchange are exchange resin, while the height of pure water. In a mixed bed, due to Yin Yang resin is mutual mixing, so the shadows, the cation exchange reaction is almost the same time, or that the cation exchange and anion exchange of the water several times staggered, generated by the H-type exchange H + and OH-type exchange of the OH-can not be accumulated, and essentially eliminate the influence of the counter-ion, exchange more thorough. The mixed bed primary pure water quality is better, switch the light load, the exchange capacity of the resin is a long time before the quilt depletion. The mixed bed regeneration in vivo, the proportion of first use of two resin regeneration backwash the right Yin, complete separation of cation exchange resin, cation resin deposition next anion exchange resin floating on top, then the cation resin with hydrochloric acid (or sulfuric acid) regeneration, the regeneration of the anion resin with caustic soda.