THE METHOD OF PROCESSING HIGHLY CONCENTRATED WASTEWATER OF ELECTROPLATING DEPARTMENTS

摘要

The method of processing highly concentrated wastewater of electroplating departments, according to which waste water is processed chemical compounds in particular their relationship to hexavalent chromium, Sr6 +: South Africa: NaOH: Na4R2O7: Na2SiO3: Na2SO3: Na5R3O10 with a total concentration of electrolyte 50 ... 100 mg / dm3 formed the process Galvanization, while mixing sewage with electrolyte solution. Electrolysis is carried out with specific electric current within 100 ... 4000 C / m3. Wastewater directed through two separate lines: chromiferous sewage and waste water with high content of copper ions. Process water in the dynamic and static precipitate adding filler metal (chips) in the optimal ratio of the volume of waste.