Description
Compact Units Pretreatment Plants For Wastewater Treatment Description
The Lackeby Pre-treatment unit is ideally suited for municipal and industrial waste water treatment plants requiring a compact, customised solution to their waste water separation requirements. Available in varying configurations and with the option of pre-screening installed on the unit such as the Lackeby Roto-sieve the unit achieves screening removal, washing and dewatering along with grit removal and grease separation.
Wastewater, which is pre-treated, is effectively cleaned of up to 90%of particles larger than 0.16mm at the design flow.
Installation and commissioning of this unit requires very little input as the unit is supplied essentially ready to operate and maintains a very small dimensional footprint.
Combined Screening Component
Dependable, complete and compact unit
performing the following process steps:
Fine screening
Screenings dewatering
Grit separation
Grit dewatering
Grease separation and removal (optional)
Combined Screening Working Principle
Combined unit for wastewater pretreatment Introduce sewage treatment plants. they perform Fine screening, grit removal and optional grease removal.Wastewater passes through spiral screen, solids Materials larger than the mesh size,The size is captured and removed from the system. they are compaction at the end of the screen conveyor before unloading.
The wastewater flows into the sedimentation tank. finer solid matter still present in wastewater Settled in a tank and conveyed to a hopper by a horizontal screw conveyor is placed at the bottom of the tank. OneInstallation of inclined screw conveyor for sand removal conveying the sand accumulated in the hopper,Drain into a container. filtered water leaves The system passes through an outlet tube placed on the upper level.Grease removal unit can be integrated into DAGYEE combination units are available upon request.
The wastewater firstly enters the tank where a screw screen is placed.
Big size solid materials are filtrated by the screw screen and a screw conveyor moves the solid materials captured up to the discharge point. At the end of the conveyor, they are pressed by the compaction unit before discharge.
The water which has still solid materials in smaller sizes flows through the sedimentation tank. The particles are settled by time and a horizontal screwconveyor transports them to the collection hopper.
Finally, they are conveyed by the grit removal screw conveyor to the discharge point.
Combined Screening Parameter
Power
Specifications
Model
Capacity
(m3/h)
Tank Length（mm）
Tank Width（mm）
Inlet Flange DN
Outlet Flange DN
Max.Wash Water(L/S)
DSP-30
30
4200
1200
DN200
DN200
0.5
DSP-50
50
5800
1200
DN200
DN200
0.5
DSP-100
100
7000
1200
DN250
DN250
1
DSP-150
150
7000
1200
DN250
DN250
1
DSP-200
200
8000
1500
DN300
DN300
1
DSP-250
250
8500
1500
DN350
DN350
1
DSP-350
350
10000
1500
DN400
DN400
1
DSP-400
400
12000
1800
DN500
DN500
1
DSP-500
500
15000
2000
DN500
DN500
1
Power Specifications
Model
Screw
Screen Power(kw)
Screw
Conveyor Power(kw)
Grit
Removal
Power(kw)
Grease
Removal
Power(kw)
DSP-30
0.55
0.25
0.37
0.18
DSP-50
0.55
0.35
0.37
0.18
DSP-100
0.75
0.37
0.55
0.18
DSP-150
0.75
0.37
0.55
0.18
DSP-200
0.75
0.55
0.75
0.18
DSP-250
1.1
0.55
0.75
0.18
DSP-350
1.1
0.55
0.75
0.18
DSP-400
1.1
0.55
0.75
0.18
DSP-500
1.1
0.55
1..1
0.18
Combined Screening Features
Filtration
Wash / compaction of solids removed
Extraction of sand
Degreasing (on GDF/D version)
Vantaggi
No odor
Low operating costs and maintenance
Reduced space requested
Construction work is not necessary
Ease of installation and management
Low organic matter in the solid residue extracted
Reduction up to 40% in volume of solids removed
Combined Screening Applications
Solids recovery
Filtration from 1 to 6 mm
Washing and dewatering
Recovery of sand and grease
Treatment capacity from 10 l/s to 240 l/s
100% of frame and components made out stainless steel
Combined Screening Functions
Screening
Washing/compacting of solid removed
Sand/grit separation
Degreasing
Main advantages
Odor-free
No clogging
Low maintenance and operation costs
Low room needed
No construction works needed
Easy to install and operate
Very low residual organic content in the washed out solid
Volume reduction (up to 40%) of the washed out solid
