Flue ash containing nickel electroplating wastewater treatment technology and equipment selection
processing materials: electroplating flue dust, 200 kg/day
organic matter: flue dust containing nickel, nickel content is 0. 32 mg/l
capacity: flue dust extract 50 l/d
according to customer's specific information, our company for the customer to choose solvent extraction of nickel. Solvent extraction will be a very good advantage can flue ash leaching liquid of the nickel elements of extraction, extraction rate is high, at the same time, through extraction, solvent recycle, can be recycled and will not cause the waste of resources.
in the nickel wastewater treatment, extraction and reverse extraction using centrifugal extraction machine, customers can choose according to material system with multistage extraction or a single-stage extraction, and equipment selection is to choose according to the customer's mixed flux. Generally in order to guarantee the effect of extraction, mostly using multistage continuous extraction.
specific operation process:
1, mixed phase: extraction solvent and flue dust leaching liquid injection compared according to certain centrifugal extraction machine, with the aid of the rotation of the drum, through the turbine disc and the impeller to make two phase mixing and dispersing quickly, two phase solution fully mass transfer.
2, separate stages: mixture under the action of vortex disk into the rotary drum, in under the action of centrifugal force, the heavier than major phase fluid in the process of upward mobility and gradually away from the drum center on the drum wall; Small proportion of liquid phase gradually away from the drum wall and on to the center, after clarification of two phase fluid end respectively through their weir plate into the collection chamber and the tube was closed to derivation, respectively, to complete two phase separation process.
3, reverse extraction phase: to extract the organic phase of extraction, according to the choice of material liquid extraction agent, the injection process after centrifugal extraction machine and extraction, the solvent and nickel separation.
zhengzhou days extraction technology research and development production of centrifugal extraction machine equipment can be applied to the processing of all kinds of chemical organic wastewater, extract the organic matter in the wastewater effectively, achieve the resources recycling, at the same time after the wastewater pretreatment can reach into the biochemical criteria, extraction equipment details can contact zhengzhou days more!