Emec LOTUS MINI, Operation Manual

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2. General Description
The chlorine dioxide generator is used for the production of liquid chlorine dioxide. This disinfection agent kills
all bacteria, germs, viruses and fungi within shortest time – and it works with very low concentration.
The generator is working with the hydrochloric acid – chlorite process and uses diluted chemicals like hydro-
chloric acid (HCl 9%) and sodium chlorite (NaClO
2
7.5%) in accordance to the following chemical equation:
Hydrochloric acid + Sodium Chlorite = Chlorine d Sodium ch Water
4 HCl + 5 NaClO
2
= 4 ClO
2
+ 5 NaCl + 2 H
2
O
In the process each chemical is pumped with a specific proportion into a reactor vessel [ 5 ] by two dosing
pumps [ 2 and 4 ]. Each stroke from each pump is triggered by the LOTUS-controller [ 1 ] and counter-
controlled by a “SEFL” [ 6 ].
Inside the reactor vessel the chemicals are reacting to chlorine dioxide with a concentration of 2% (= 20 g/l).
In the next step a specific proportion of water is pumped into the reactor by a third dosing pump [ 3 ] to dilute
the chlorine dioxide down to a concentration of approx. 2 g/l.
The finished chlorine dioxide leaves the reactor vessel through a back pressure valve [ 7 ] on the top of the re-
actor.
The advantages are:
• The chlorine dioxide can be pumped direct into pressurized systems with the pressure of the pumps and
likewise into pressure-less storing tanks, to distribute the disinfection to different points of use.
• The System can work in proportional mode with contact water meter, current signal or chlorine dioxide
measurement.
1
2 3 4
5
6
7