Comprehensive Equipment for Primary and Secondary Settling Tanks
Primary settlers are used for mechanical separation of mineral and organic suspended solids (mainly heavier particles) from raw sewage before it undergoes further biological treatment.
Secondary settlers are a key component of the biological treatment process — they perform the final separation of biomass from treated water and ensure proper effluent clarity before discharge into the receiving body.
1. Equipment for Primary Settlers
1.1 Rectangular Primary Settlers:
• wastewater distribution systems,
• travelling scrapers for sludge and scum,
• chain scrapers for sludge and scum,
• tilting scum troughs,
• effluent channels,
• multi-stream inlet modules to increase flow capacity or treatment performance.
1.2 Circular (Radial) Primary Settlers:
• central feed systems,
• bridge-mounted radial scrapers,
• non-bridge radial scrapers as an alternative to traditional units, with the option of tank enclosure,
• suction scrapers for flat-bottom tanks without a sludge hopper,
• scrapers made of stainless steel or aluminum,
• central deflector,
• central column,
• bridge structure made of stainless steel or aluminum, with peripheral drive,
• scum collection systems – rake or screw type,
• scum troughs and/or pump-based scum removal systems,
• sludge removal systems from the sludge hopper, including chasing rake variants for large diameters,
• effluent channels,
• track and effluent trough cleaning systems,
• flow deflectors.
2. Equipment for Secondary Settlers
2.1 Rectangular Secondary Settlers:
• central feed systems,
• travelling scrapers for sludge and scum,
• chain scrapers for sludge and scum,
• tilting scum troughs,
• effluent channels,
• multi-stream inlet modules to increase capacity or treatment effectiveness.
2.2 Circular (Radial) Secondary Settlers:
• central feed systems,
• central column,
• effluent channels,
• track and channel cleaning systems,
• central deflector,
• single- or double-rake bottom scrapers,
• aluminum or stainless steel bridges with peripheral drives,
• rake or screw-type scum and sludge removal systems,
• scum troughs and/or pump-based scum removal systems,
• suction scrapers with integrated sludge discharge systems,
• non-bridge radial scrapers as an alternative to traditional bridge units, with the possibility of enclosure.
2.3 Vertical Secondary Settlers:
• central feed pipes,
• inflow energy dissipation system,
• effluent trough systems,
• deflector systems.
As part of the equipment or complete system selection process, we offer an analysis of the current and projected conditions at the facility and preparation of process designs, including:
• process design with initial site inventory and optimization of existing settlers, distribution and discharge systems, as well as flow management ahead of the biological stage in the case of primary settlers,
• hydraulic system design, sludge/scum separation systems, and custom-engineered solutions
The following product sheets are available in Polish only. If you would like to review them or have any questions, please contact our team.
Secondary settlers are a key component of the biological treatment process — they perform the final separation of biomass from treated water and ensure proper effluent clarity before discharge into the receiving body.
1. Equipment for Primary Settlers
1.1 Rectangular Primary Settlers:
• wastewater distribution systems,
• travelling scrapers for sludge and scum,
• chain scrapers for sludge and scum,
• tilting scum troughs,
• effluent channels,
• multi-stream inlet modules to increase flow capacity or treatment performance.
1.2 Circular (Radial) Primary Settlers:
• central feed systems,
• bridge-mounted radial scrapers,
• non-bridge radial scrapers as an alternative to traditional units, with the option of tank enclosure,
• suction scrapers for flat-bottom tanks without a sludge hopper,
• scrapers made of stainless steel or aluminum,
• central deflector,
• central column,
• bridge structure made of stainless steel or aluminum, with peripheral drive,
• scum collection systems – rake or screw type,
• scum troughs and/or pump-based scum removal systems,
• sludge removal systems from the sludge hopper, including chasing rake variants for large diameters,
• effluent channels,
• track and effluent trough cleaning systems,
• flow deflectors.
2. Equipment for Secondary Settlers
2.1 Rectangular Secondary Settlers:
• central feed systems,
• travelling scrapers for sludge and scum,
• chain scrapers for sludge and scum,
• tilting scum troughs,
• effluent channels,
• multi-stream inlet modules to increase capacity or treatment effectiveness.
2.2 Circular (Radial) Secondary Settlers:
• central feed systems,
• central column,
• effluent channels,
• track and channel cleaning systems,
• central deflector,
• single- or double-rake bottom scrapers,
• aluminum or stainless steel bridges with peripheral drives,
• rake or screw-type scum and sludge removal systems,
• scum troughs and/or pump-based scum removal systems,
• suction scrapers with integrated sludge discharge systems,
• non-bridge radial scrapers as an alternative to traditional bridge units, with the possibility of enclosure.
2.3 Vertical Secondary Settlers:
• central feed pipes,
• inflow energy dissipation system,
• effluent trough systems,
• deflector systems.
As part of the equipment or complete system selection process, we offer an analysis of the current and projected conditions at the facility and preparation of process designs, including:
• process design with initial site inventory and optimization of existing settlers, distribution and discharge systems, as well as flow management ahead of the biological stage in the case of primary settlers,
• hydraulic system design, sludge/scum separation systems, and custom-engineered solutions
The following product sheets are available in Polish only. If you would like to review them or have any questions, please contact our team.
