Primary Settlement Tanks
WPL Primary Settlement Tanks also known as clarifiers can be used in conjunction with WPL treatment products or to complement existing process units for wastewater treatment in commercial and municipal applications.
Primary Settlement tank options:
- WPL Conical Settlement Tank
- WPL Cylindrical Settlement Tank
- WPL Lamella Plate Settlement Tank
- WPL Rectangular Settlement Tank
Bundled solution for 3 DWR CYMRU Welsh Water sites – read more
WPL Conical Primary Settlement Tank
WPL Conical Settlement Tanks are high quality sedimentation tanks used in the primary stage of the wastewater treatment process. Manufactured in glass reinforced plastic (GRP), the settlement units are custom made to meet your treatment needs.
WPL Conical Settlement Tanks are supplied complete with internal launders, diffuser drum (stilling well), scum board and piping.
Designed to principles established in BS 4994.
Features and Benefits of the Conical Primary Settlement Tank:
Quality material constructed with corrosion-resistant GRP
Tanks can also be made to withstand very strong alkalis or acidic PH levels
Increased retention period
Option for extending sidewall to increase retention period
- Quality design
60 degree inverted cone design is the optimum angle to encourage settlement of solid particles
Can be installed either above ground 3m diameter or below ground to 6m diameter
Options are available for up-flow/cross-flow systems and scum draw-off systems
Connection sizes and positions tailored to customer needs
Indicative drawing of a WPL Conical Tank*
* Tank volumes can be increased by extending the side wall height
WPL Conical Tank Specification Information
WPL Cylindrical Primary Settlement Tank
Designed in accordance with the latest European Legislation, WPL Cylindrical Settlement Tanks are high quality sedimentation tanks used in the primary stage of the wastewater treatment process. Manufactured in GRP, they are light and easy to handle for installation. They are also not susceptible to rust, exhibit excellent corrosion resistant properties.
Features and Benefits of the Cylindrical Primary Settlement Tank:
- Flexible installation depths
Variable inlet depths giving it complete flexibility for different site conditions and installation requirements
- Robust design
Heavy and extra heavy duty tanks available
- Easy access for emptying
Bauer coupling connections available as an option for ease of emptying
WPL Lamella Plate Primary Settlement Tank
WPL Lamella Plate Settlement Tanks are the ideal solution where there is no existing primary or final settlement on site and where space is at a premium. Used in conjunction with our biological treatment modules, the units can be designed to provide a high effluent quality.
We can design a bespoke settlement tank for your specific application. Standard size modules can be fitted with ladder / staircase and handrails and desludge pipe work can be adapted to suit specific site requirements.
WPL Lamella Plate Settlement Tank can be hired and/or purchased for permanent or temporary installations.
Features and Benefits of the Lamella Plate Primary Settlement Tank:
- Compact design
Requires only a small footprint for ease of installation and delivery
- High effluent quality
Can be designed to meet specific quality requirements for individual sites
WPL Rectangular Primary Settlement Tank
Designed for below ground applications, rectangular settlement tanks are used for primary or final settlement generally as part of a modular package, but can be sold separately. Bespoke solutions are available with flows of up to 6 litres per second.
Features and Benefits of the Rectangular Primary Settlement Tank:
- Quality design
Designed with a conical end to encourage efficient settlement
Large cross sectional area designed to 0.7m/hr upflow velocity
Incorporates the WPL forward feed airlift which can also be used for primary or humus sludge removal
- Easy access
Excellent access for emptying by suction tanker
Variable lid designs, Bauer connectors for ease of emptying
WPL 6m Conical Tank – primary settlement
Municipality Zgornja Kungota, Slovenia – WPL HiPAF, RADS, Conical Tank and walk in kiosk
6m WPL conical tank – primary settlement
3m WPL Robust Aerobic Digestion (RADS) for sludge storage and sludge reduction. WPLs unique RADS system reduces de-sludge frequencies by up to 4 times.