Lamella Clarifier

Working Principle

• Achieves solid-liquid separation by directing the liquid between a series of inclined plates called Lamella
• Settles suspended solids by gravity
• Settling surface area of each plate is equivalent to its horizontal projection
• As Lamella are normally spaced approximately 50 mm apart, large settling surfaces are concentrated within a relatively small floor area
• Design ensures laminar, stable flow and excellent effluent quality

Design Features

• The Lamella clarifier is a pressure-less system
• The untreated water is pumped or flows by gravity into the inlet channel of the Lamella clarifier where it flows downwards
• Below the Lamella the flow is reversed and streams up
• The Solids settle down solids settle down in the hopper on the Lamella
• The clarified water flows downwards and via a special overflow weir to the outlet
• The solids slide down along the Lamella and accumulate in the hopper
• Sludge can be removed periodically
• Inclined plate clarifier which is easy to maintain
• Dual flow entry
• Gravity sludge removal
• No moving parts
• Compact, modular, maintenance free
• Custom designed units to treat higher suspended solids and flow rates
• Standard models to treat 150 to 250 ppm suspended solids and upto 650 m3/h flow rate

Features

• Plate configuration can be varied
• Ease of installation
• Bottom hopper configuration can be varied
• Remove sediment from wastewater reliably and effectively
• Using up to 90% less footprint than conventional technologies
• Single packaged unit with minimum civil work

Maintenance

• Minimal operator involvement
• On-line plate cleaning possible
• No moving parts, hence minimum maintenance

Advantage Over Clariflocculators

• Less floor space
• Easy capacity expansion
• No moving parts; energy saving and easy operation
• Flexibility – plate configuration can be varied to suit applications, changes in influent characteristics
• No downtime – plates can be cleaned while unit is in operation
• Negligible civil work – less time for construction
• Moveable to other location as well as Modular expansion possible

Applications

1. Primary Clarification of water
2. Municipal water & waste treatment
3. Ash/Wet scrubber and slaking effluents in the power industry
4. Thickening processes in the chemical, mining and mineral industries
5. Coal and other mineral separation
6. Filter backwash water recovery
7. Mill Scale separation
8. Iron removal
9. Brine clarification
10. Food & dairy processing and waste treatment
11. Metal hydroxides separation
12. Treatment of effluents in metal finishing, and iron and steel plants
13. Plating and finishing waste treatment
14. Semi conductor process water treatment
15. White water, pulp & paper treatment

Standard Models