Iron / manganese removal
Demanganisation system GENO-mat MN-Z
Order no. 095 153 048-inter Edited by: nkes-mrie G:\BA-153048-INTER_095_GENO-MAT_MN-Z.DOCX
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2 | Special treatment of the demanganisation system
As GENO-Fermanit is a natural product, it is not possible to rule out
the presence of manganese compounds as MnO, MnO
2
or as
Mn
2
O
3
. This means that during commissioning, it may occur that the
manganese value is higher downstream of the system than in the in-
let water. In this case, a special treatment should be performed.
The special treatment is performed using a kitchen salt solution
(NaCI).
Fill the regeneration unit (optional accessory, see chapter C, point
5) with saturated brine
(For quantities, see Table E-1).
Performing a special treatment
(For procedure, see chapter G, point 3).
Then perform a regeneration process with GENO special granulate
or
GENO-oxi plus (see chapter G, point
3.1
).
Table E-1: Required brine volume
Demanganisation system GENO-mat MN-Z
20/10 25/13 30/14 40/17 40/18 50/19 60/20
Required brine volume
[l]
15
30
40
66
88
130
221
Caution!
Special treatment only following consultation with the fac-
tory, or carried out by Grünbeck's technical service/authorised ser-
vice company.
2.1
Continuous addition of GENO-oxi plus
Caution!
The following instructions only apply when using the in-
tended system components (see chapter C, point 5).
When using other system components (a different GENODOS pump
or water meter), a special design is required (factory/sales depart-
ment).
Installation in accordance with the installation drawing (see chapter
D, point 3, fig. D-
2
).
Following commissioning of the demanganisation system, the con-
tinuous addition of GENO-oxi plus should be carried out initially for
around 6 weeks. The stroke length of the GENODOS pump should
be set to 80%. After the run-in time, the stroke length can be re-
duced each week by 10 % until manganese breaks through (but to a
maximum of 30%). This means that the limit value has been
reached. Finally, increase the stroke length for subsequent operation
by 10%.
