Open the valve of Nickel Drag out tank,
after connecting it into the bottom valve
V1 of Nickel Recover Unit.
2.
Open the valve V1 & V2 but all the other
valves must be closed.
3.
Start the pump. The drag out solution will
come out of valve V2. Observe the colour
of the discharged effluent. Keep running
the Unit, till the colour is clear. Stop
the Unit for regeneration when the colour
is light green.
Regeneration
Cycle
1.
Rinse the column for half an hour with pure
water before regeneration to remove any
Organic or brighteners left in the column.
2.
Fill the dosing container with water and make
10% Sulphuric Acid Solution.
3.
Open Valve V3 & V4. Close Valve V1 &
V2.
4.
Start dosing the dilute Sulphuric Acid with
the help of pump & collect the recovered
Nickel Solution from valve V3. Stop dosing
when the density is less than one. The dosing
theme should not be less than 30 minutes.
5.
Rinse the column with wate for 15 minutes.
It is now rady for next cycle. The recovered
Nickel Solution can be put back into the
Nickel Tank for Nickel Sulphate addition
and pH adjustment.
