| Initial sludge concentration is
between 5 and 20 gr/litre. |
The volume is reduced four times
by dewatering with a Gravity Belt Thickener. |
The
volume is reduced 10 times by dewatering with:
- belt filter press: medium pressure high pressure high
pressure high capacity
- Combined unit gravity belt thickener / belt filter
press
- Centrifuge |
The
volume is reduced 15 times by dewatering by : - plate
filter press
- belt filter press for sludge with physico chemical
or primary or mixted structure
- composting unit or mixing unit for sludge and sawdust
or sludge and lime. |
The volume is reduced 50 times using thermic dewatering : drying process or incineration. |
| Initial volume before treatment
: 98% water |
Table
d'égouttage
8% matières sèches
92% d'eau |
Presse
à bandes filtrantes
20% matières sèches
80% d'eau |
Chaulage
ou filtre
Presse à plateaux
30% matières sèches
70% d'eau |
Système
de séchage
85% matières sèches
15% d'eau |
