2. Experience Nordic Water WesTech / General Filter
Over 5,000 installations worldwide
Original inventor of plate settler technology WesTech is exclusive distributor for North America
Standard stand-alone units and plate packs
WesTech / General Filter
Field assembled (too large to ship) stand-alone units are built by WesTech based on General Filter design

3. Projected Area
For projects with footprint constraints, SuperSettlers can increase settling area by up to 8 to 10 times.

4. Counter Current Flow
Proven technology developed by and continuously improved by Engineers at our partner Nordic Water Product AB.

5. Flow Distribution
Our standard designs incorporate both the Lamella style (launder over plates) and the GEWE style (launder on sides of plates) plate packs.

6. More Applications Municipal Drinking Water
Pre-treatment to membrane filtration
Most Engineers using membranes are footprint conscious.
Package with horizontal or vertical paddle flocculators.
Upgrade existing rectangular clarifiers
Increase capacity using existing basins, reuse or replace existing sludge removal are flocculation equipment.
Spent filter backwash (SFBW)
Standard backwash systems including floc tank and mixers.

7. More Applications Municipal Waste Water Spent filter backwash (SFBW)
Primary and Secondary Settling
Increase capacity using existing basins, reuse or replace existing sludge removal equipment.
Don’t worry, it’s been hundreds of times before.
Spent filter backwash (SFBW)
Standard backwash systems including floc tank and mixers.

8. More Applications Industrial Water Treatment
Standard Package Systems w/ flash, floc, and settle.
Pre-treatment of surface water
Spent filter backwash (SFBW)
Industrial waste water

9. Expected Performance Surface Water, Filter Backwash Treatment
90% reduction at 0.12 gpm/sqft without chemicals, feed concentration above 200 mg/l.
95% reduction at 0.33 gpm/sqft with chemicals, feed concentration above 200 mg/l.
Primary or Secondary Settling of Wastewater
50% reduction at 0.6 gpm/sqft without chemicals, feed concentration above 180 mg/l.
75% reduction at 0.6 gpm/sqft with chemicals.

10. Configurations Plate Packs (in concrete basins) Stand-alone
Conical hopper bottom
Thickener bottom

11. Discharge Channel
Clean Water Outlet
Sludge Discharge
Feed Zone
Plate Packs
Discharge Flumes
Feed Ports
Sludge Scraper
Feed

12. Plate Pack Models “LPS” Style “LP” Style Launders on side
Launders on top

13. Plate Pack Considerations
How will plates be supported?
The more columns allowed, the better
Sludge Removal
Zickert Shark Scraper recommended
Higher sludge concentration than suction systems
No interference with support structure
Flocculation
Basin Layout
Other manufacturers plate and pack dimensions are different

14. Plate Pack Considerations
How to clean plates
Other manufacturers use a “top deck” or “top angle” that obstructs the plate opening, making them difficult to clean from above
If you can walk on the plate, you probably can’t clean it from the top, requiring the operator to either drain the basin and clean from below, or lift heavy plates.
Our plates are fully open and easily cleaned from above, with walking access in launder.

15. Stand-alone Settler Optional Scraper Drive Outlet Flume
Optional Rapid Mixer
Optional Flocculation Mixer
Stand-alone Settler
Outlet Flume
Plates
Sludge Hopper
Feed Ports
Inlet

16. Stand Alone Models
“LS” Type
SuperSettler
“LT” Type
SuperSettler

17. More Options Available in 50, 60, 80, and 100 mm plate spacing.
50 mm spacing recommended for filter backwash and surface water treatment
80 mm minimum recommended for waste water treatment.

18. Standard Sizes Pre-engineered Shop built (simple installation)
Model
Projected Area
Nominal Flowrate
PSS15,
PST15
161 ft2
50 gpm
PSS25,
PST25
269 ft2
90 gpm
PSS40,
PST40
430 ft2
140 gpm
PSS60, PST60
646 ft2
215 gpm
PSS80, PST80
861 ft2
290 gpm
PSS100, PST100
1076 ft2
360 gpm
PSS120
1292 ft2
430 gpm
PSS165
1776 ft2
590 gpm
Pre-engineered
Shop built (simple installation)
Larger custom sizes (field assembled) also available.