EN
35
Enhancement of fi ltering effi ciency
AFM
®
activated fi lter media
fi ltration system. AFM
®
is resistant to biological pollution and formation of so-
called bio-fi lm.
ZPM
®
coagulation mixer
ZPM increases eff ects of coagulation and fl occulation for transition of smaller
dissolved solids (turbidity) to larger particles that can be removed by fi ltering.
-
-
-
- -
- -
-
-
-
-
- -
- -
-
-
-
-
- -
- -
-
-
-
-
- -
- -
-
-
-
-
- -
- -
-
-
-
-
- -
- -
-
-
-
-
- -
- -
-
+
-
-
-
- -
- -
-
+
+
+
+
+
+
+
+
-
-
-
- -
- -
-
+
+
+
+
+
+
+
+
-
-
-
- -
- -
-
+
+
+
+
+
+
+
+
-
-
-
- -
- -
-
+
+
+
+
+
+
+
+
-
-
-
- -
- -
-
+
+
+
+
+
+
+
+
-
-
-
- -
- -
-
+
+
+
+
+
+
+
+
-
-
-
- -
- -
-
+
+
+
+
+
+
+
+
+
+
-
+
+
+
+
+
Coagulation
(inorganic coagulant)
< 1 second
Flocculation
(polymeric fl occulant)
approx. 3 minutes
Filtration
(
AFM
- Activated
Filter Media)
Filter Media)
ZPM
(Zeta Potential
Mixer)
Polymeric fl occulant
causes that neutral
particles
join
together to
create
solid fl occules
.
Solid fl occules are
easily caught by
fi lter media.
A zeta charge of
suspended particles
is
neutralised
in ZPM.
Inorganic coagulant and
polymeric fl occulant
FR
OM
P
O
OL
FR
OM
P
O
OL
TO
P
O
O
L
TO
P
O
O
L
Turbid water
(colloidal suspension)
The zeta potential keeps fi ne
particles dispersed
in water.
in water.
