Operation; Changing The Chemical Drums - ProMinent ProMaqua Bello Zon CDLb Series Operating Instructions Manual

12

Operation

12.1

Changing the chemical drums

WARNING!
At no operating status may the maximum permissible oper‐
ating pressure for the system be exceeded.
WARNING!
The entire installation should remain leak-tight when oper‐
ating at maximum operating pressure.
WARNING!
Danger of explosion
If the two chemicals hydrochloric acid and sodium chlorite
come together, toxic ClO gas forms almost instantaneously
2
and this can then explosively decompose.
– The two components hydrochloric acid (HCl) and sodium
chlorite (NaClO ) must never be brought into contact
2
except in the mixer vessel.
WARNING!
Warning of toxic ClO gas
2
– Only trained personnel may change the chemical drums.
– Observe the colour code.
Red stands for acid (HCl, left),
blue for chlorite (NaClO
– Never pour chemicals from chemical canisters back into
the drums or pour them together.
– Never place both suction lances in the same vessel.
– To do so ensure that the "Acid" suction lance is installed
in the "Acid" chemical drum (observe colour-coded
labels) and the "Chlorite" suction lance is installed in the
"Chlorite" chemical drum.
WARNING!
Only use Bello Zon ® chlorite. Never operate the chlorine
dioxide system with undiluted sodium chlorite.
Otherwise ClO concentrations are formed for which the
2
system is not designed.
WARNING!
Only use Bello Zon ® chlorite. Never operate the chlorine
dioxide system with undiluted sodium chlorite.
Otherwise, chlorite concentrations are formed in the treated
water that are harmful to human health.
Operation
, right).
2
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