|
|
|
ITEM
|
ROTARY
PRESS
|
SCREW
PRESS
|
| Spare
requirements |
Low
footprint |
Much
larger footprint and installation is two stories high. This results in higher
initial capital investment in building space. |
| |
|
|
| Maintenance
cost |
Maintenance
is less frequent, simple and easy. |
Maintenance
is frequent and troublesome. |
| |
Most
maintenance can be performed by one person. |
Maintenance
cannot be performed by only one person. |
| |
Screens
are long-lasting (over 10 years) |
Screens
need to be changed every 2-3 years. |
| |
|
|
| Wash
water |
No
continuous wash water is required. |
Continuous
wash water is required |
| |
|
|
| Capture
Rate |
A
high capture rate is intrinsic in the Rotary Press design and frequent adjustments
are not required to maintain it high: 95% av. |
Capture
rate is low (less than 90%), and sometimes less than 65%. Capture rate evaluation
needs to take into account both filtrate and wash water. |
| |
|
|
| Operation |
Adjustments
to variations in sludge solids content and dewaterability are automated. |
Manual
adjustments are required. |
| |
|
|
| Partial
operations |
For
a multi-channel machine, one or more channel(s) may be removed for maintenance
purposes, while the machine with the remaining channel(s) may still be operated. |
Maintenance
requires total machine shut-down, generating operations down time. |
| |
|
|
| Shut
down procedure |
5-min
system flush. |
The
whole machine needs to be flushed. |
Home | Contact-Us | Credits | Site map | Confidentiality
Copyright © 2001-2008 Les Industries Fournier Inc.
Last update: Friday, October 10, 2008
Rotary press - dewatering equipment
Principle of sludge dewatering |
Dewatering Equipment Comparative Criteria |
Rotary Press Specifications |
Dewatering Pilot Testing |
Lab Testing |
Sludge handling & storage |
Fournier press applications
Description
and Principle of sludge dewatering: sludge dewatering with Rotary Press.
Dewatering
Equipment Comparative Criteria: rotary press,
Plate and Frame Press,
Belt Filter Press,
Centrifuge et
Screw Press.
Rotary Press
Specifications: many model for all uses, biosolids, pig manure, cow manure, decanter, septage, environmental,
grease trap, dewatering system, conveyor, polymer system, etc...
Dewatering
Pilot Testing: Mobil Unit equipped with a full scale Rotary Press is available to define on site the
dewatering performance on your sludge. This remains the prime method of determining how our Rotary Press will solve your dewatering problems.
Lab Testing:
The sludge characteristics and its dewatering potential are evaluated in our laboratory.
Sludge handling & storage:
Belt Conveyor, Screw Conveyors, Drag Conveyor, Mobile Shaftless Conveyor, Silo, Sludge Blender for Lime Stabilisation & Polymer System.
Fournier press applications:
Municipal sludge: Biofiltration, Physico-chemical, Primary, Biological, Septage, Lagoon sludge, Prime solution.
Pulp & paper sludge: De-inking, Primary, Mixed, Secondary. Industrial sludge: Rubber residue , Coal residue, Metallurgical process,
Alfalfa, Residual waters, Bottling waste water, Waste sludge.
|
