Installation and operating instructions: JUDO UNIDOS digital dosing pump systems JUD-KH 6-50 and 6-100 (cold water) / JUD-HH 6-50 and 6-100 (hot water)
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Revision level: 20.04.2017
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37
7.4.5
Oxidation agent for drinking and process water treatment
A water analysis and technical advice is necessary for the dosing of potassium
permanganate (KMnO
4
)!
Type
Vessel Order no. Dosing
Note
KMnO
4
5 kg
8839106
1 mg/l Fe requires 1 mg/l KMnO
4
Max. solubility 64 g/l
1 mg/l Mn requires 2 mg/l KMnO
4
Spec. density (at 20 °C) 2.7 g/cm³
Tab. 20: Oxidation agent for drinking and process water treatment
Calculation example:
Given:
-
Iron content according to water analysis, e.g. 2.0 mg/l Fe
-
Manganese content according to water analysis, e.g. 0.5 mg/l Mn
-
System-induced back pressure, e.g. 6 bar
-
Water volume for KMnO
4
preparation, e.g. 20 l
-
KMnO
4
quantity for preparation e.g. 100 g
-
KMnO
4
spec. density: 2.7 g/cm³
Required:
1. Total requirement KMnO
4
2. KMnO
4
dosing solution concentration for typical preparation
3. KMnO
4
volume at the specific density for typical preparation
4. KMnO
4
dosing quantity for typical preparation
Solution:
1. Total requirement KMnO
4
conc.)
n
M
*
t
requiremen
(KMnO4
conc.)
Fe
*
t
requiremen
(KMnO4
t
requiremen
total
KMnO4
³
3
3
5
,
0
*
2
2
*
1
m
g
l
mg
l
mg
l
mg
t
requiremen
total
KMnO4
2. KMnO
4
dosing solution concentration for typical preparation
quantity
Water
quantity
KMnO4
ion
concentrat
solution
dosing
KMnO4
ml
mg
l
g
l
g
ion
concentrat
solution
dosing
KMnO4
5
5
20
100
3. KMnO
4
volume at the specific density for typical preparation
density
spec.
KMnO4
quantity
KMnO4
volume
KMnO4
ml
cm
g
g
volume
KMnO4
37
³
7
,
2
100
