Treatment method and treatment device of electroplating mixed water
A treatment method and mixed water technology, which are applied in water/sewage treatment, metallurgical wastewater treatment, neutralization water/sewage treatment, etc., can solve the problem of increasing the complexity of electroplating mixed water treatment process, large amount of sludge, increasing operating costs, etc. problems, to achieve the effect of saving engineering investment and operating costs, high operating stability, and convenient operation
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[0043] Example
[0044] The electroplating mixed water in the electroplating workshop of a certain factory includes electroplating wastewater and organic wastewater. Electroplating wastewater mainly comes from the wastewater generated in the process of nickel plating and chromium plating and washing wastewater in the electroplating workshop, and the main heavy metal ions contained in it are Ni 2+ , Cr 6+ And Cr 3+ ; Organic wastewater comes from wastewater formed by adding ammonium dichromate solution, complexing agent, thickener, etc. during the cleaning process of the cleaning room, and its heavy metal ions mainly contain Cr 6+ And Cr 3+ . The treated water volume of electroplating mixed water is 20m 3 / d, the main pollutants are heavy metals (nickel, chromium) and organic pollutants (COD). After treatment, the effluent is discharged into the local sewage treatment plant. The raw water quality is shown in Table 2.
[0045] Before the transformation, the electroplating mixed water...
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