The feature of ion exchange vaporization-concentration process used to dispose wastewater produced by electroplating, as well as running effects are introduced.

First,the relative evaporative concentration properties of the strong liquor were measured.

There are several advantages including better selectivity and high determination accuracy and broad application scope with simple and fast way by using evaporative concentration-flame atomic absorption to detect copper and zinc in water.

Further some problems existing in the distillation and concentration sections in the pilot plant are discussed.

Study is made on the process and equipment of continuous distillation and concentration of high acid RE strip liquor.

The main reasons for water salinization has mass transfer of saline soil and shallow saline groundwater,and evaporation concentrating,and accelerating the mass transfer and evaporation concentrating by wind agitating,and so on.

Based on salinization of water channeled from Yellow River being stored in the Beidagang Reservoir and the mass transfer theory,it qualitatively analyzed that the main salinization mechanisms are the salinity transfer of saline soil,the evaporation concentrating and the agitation of wind.

The Practicable Study of Determination of Low Concentration COD in the Surface Water by Evaporation CODcr Method.;

Research on the Energy-saving in Process of the Two Effect Thin Alkali Liquid Evaporation;