Pump Matching：Electroplating with cyanide rinsing wastewater treatment project
Project Customer: An electroplating company in Changzhou
Actual flow: 25m3/h
Actual head: 8m
Water analysis: cyanide wastewater & acidic wastewater(PH:2)
Temperature of water body：60℃
Application process: cyanide plating wastewater acid and alkali transport dosing
Customer requirements: pumps can be idle, horizontal ground installation
Medium concentration: 60 per cent hexavalent chromic acid
The composition of electroplating wastewater is very complex, in addition to cyanide-containing (CN-) wastewater and acid-alkali wastewater, heavy metal wastewater is a potentially hazardous wastewater category in the electroplating industry. According to the classification of heavy metal wastewater containing heavy metal elements, it can generally be divided into wastewater containing chromium (Cr), nickel (Ni), cadmium (Cd) wastewater, copper (Cu), zinc (Zn), gold (Au), silver (Ag) and other wastewater. If the wastewater is discharged into the natural water body, it will cause serious pollution to the ecological environment, and can threaten the human health, triggering the consequences of carcinogenicity, teratogenicity and mutation.
1, confirm the type of pump
Customers need to use the pump in the cyanide plating wastewater acid and alkali transport dosing, first of all, we can determine our pumps can be used: Mabel MK acid and alkali self-priming pumps, MC acid and alkali chemical pumps, MD acid and alkali vertical pumps, MS acid and alkali magnetic pumps, as well as MZ acid and alkali centrifugal pumps.
2、Determine the pump material
According to the type of medium, temperature, concentration to determine the pump material: customer cyanide plating wastewater water body is mainly: cyanide wastewater & acidic wastewater (PH: 3.5-5); temperature of 60 ℃, the main medium for the sixty per cent of hexavalent chromic acid.
According to the PH acidity and alkalinity of the medium, temperature and concentration, we recommend the customer pump material selection: PVDF Teflon material.
3、Determine the power of the pump
According to the actual head flow rate to determine the power of the pump: the customer needs the actual head of the pump 8M, the actual capacity of 25m³/h, so we recommend the pump power: 3.75KW.
4、Determine the specific model
Determine the specific model according to the customer's other requirements: the customer requires the pump to reach the idle, horizontal ground installation, corrosion resistance requirements. Combined with the material, power, process, we recommend to the customer: can be idle acid and alkali self-priming pump. Specific model: MKP-50052VBH-SSH, material: PVDF, power: 3.75KW.
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