Ion exchange treatment process for cyanide containing wastewater
An ion exchange method and treatment process technology, which is applied in the field of ion exchange method treatment process of cyanide-containing wastewater, can solve the problems of high treatment cost, low degree of automation, complicated resin regeneration and maintenance operations, etc., and achieves high degree of operation automation, Conducive to recycling, good effect of wastewater treatment
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[0020] Example 1:
[0021] The water quality of cyanide-containing wastewater in an electroplating plant is shown in Table 1:
[0022] Table 1 The maximum content of pollutants in cyanide-containing wastewater (mg / L) and maximum water volume
[0023] Type of wastewater Water volume (m 3 / d) pH Cr 6+ TCr Cu 2+ Ni 2+ Zn 2+ CN - Cyanide wastewater 400 1.5~1.8 0.1 20 150 20 20 200
[0024] The effluent requirement after the process of the present invention reaches CN - Concentration 3 / h, the specific equipment and operations are as follows:
[0025] 1. Equipment:
[0026] Cyanide removal ion exchange column: According to three-column design, the resin volume of a single column is 5m 3 , The resin is D201, the material of the exchange column is FRP, and the resin height accounts for 2 / 3 of the height of the whole column. A cyanide online monitor is installed at the total outlet. The adsorption and regeneration of the exchange column are de...
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