Description

lamella clarifier for Industrial Wastewater – Heavy-Duty Solids Removal for Manufacturing & Chemical Plants

WHAT IS LAMELLA CLARIFIER

Circular clarifiers are widely used in municipal and industrial wastewater treatment. They are robust, reliable, and have been the industry standard for decades. However, as treatment requirements become more stringent and loads increase, these round clarifiers often struggle to keep up. Effluent quality deteriorates, sludge thickening is poor, and capacity is limited.

Building new clarifiers is expensive and time-consuming. Many plants simply do not have the space or budget for new construction.

The DAGYEE Circular Lamella Clarifier provides a practical solution. By installing a specially designed Lamella Plate pack inside an existing circular clarifier, the effective settling area is significantly increased without major structural changes. The circular design is optimized for the radial flow pattern of round tanks, ensuring even distribution and maximum performance. This upgrade is cost-effective, fast to implement, and delivers immediate improvement in effluent quality and sludge thickening.

HOW DOES LAMELLA CLARIFIER WORKS

Step 1: Feed Flow Distribution
Wastewater enters the circular clarifier from the center or perimeter, depending on the design. The feed flow is distributed radially across the tank.

Step 2: Radial Flow Through Plates
The water flows radially outward (or inward) through the circular lamella plate pack. The plates are arranged in a radial pattern from the center to the perimeter of the clarifier.

Step 3: Solids Settling
As water flows through the plate pack, suspended solids settle onto the plate surfaces. The plates are inclined at 55-60° to the horizontal, allowing settled solids to slide down under gravity.

Step 4: Sludge Collection
Settled solids slide to the bottom of the clarifier, where conventional sludge collection equipment (rake or scraper) removes them.

Step 5: Clarified Effluent
The clarified water flows upward through the plates and overflows into collection launders, ready for discharge or further treatment.

Step 6: Thickened Sludge
The counter-current flow in the plate pack produces a denser sludge than conventional circular clarifiers, reducing sludge volume for disposal.

AVAILABLE DESIGNS KEY

What the System Removes

Contaminant	Removal Efficiency	Notes
Suspended solids	High	Particles effectively removed
Turbidity	To very low levels	Typical clarified water quality
Free oils and greases	High	Under standard operating conditions
Emulsified oils	Moderate	Without chemical addition
Metal hydroxides	High	With proper flocculation
Colloidal particles	Moderate to high	With coagulant/flocculant addition
Settleable solids	High	Particles with density greater than water

Lamella Clarifier Application

• Municipal Wastewater Treatment: Primary and secondary clarification

• Industrial Wastewater: Food processing, beverage, pulp & paper, chemical industries

• Water Treatment Plants: Raw water clarification for drinking water production

• Stormwater Treatment: Removal of suspended solids from stormwater runoff

• Process Water Recycling: Clarification for water reuse systems

• Mining Operations: Tailings clarification and process water recovery

• Power Plants: Cooling water treatment and blowdown clarification

• Aquaculture Systems: Water quality maintenance in recirculating systems

Customization Options

• Plate Materials: Choice of stainless steel, polypropylene, PVC, or FRP based on chemical compatibility

• Plate Coatings: Special coatings for specific applications (anti-fouling, anti-static, etc.)

• Inlet Arrangements: Center feed, peripheral feed, or bottom feed configurations

• Sludge Removal Systems: Chain-and-flight scrapers, traveling bridges, or suction systems

• Instrumentation Packages: Level sensors, turbidity meters, sludge density monitors

• Control Systems: Manual, semi-automatic, or fully automated PLC control

• Accessories: Chemical dosing systems, flocculation aids, sampling points

• Special Designs: Circular, rectangular, or square configurations based on space constraints

Pre-Treatment Requirements

Recommended Pre-Treatment:

• Equalization: Balances flow and composition for consistent operation

• pH Adjustment: Optimizes metal precipitation and flocculation

• Coagulation/Flocculation: Forms settleable solids from fine particles

• Screening: Removes large debris that could damage plate pack

• Oil Removal: For streams with high oil and grease content

Why Choose DAGYEE Lamella Clarifiers

Supplier Information

The DAGYEE Circular Lamella Clarifier provides a cost-effective, high-performance upgrade for round clarifiers. Increase capacity, improve effluent quality, and achieve better sludge thickening without the expense and disruption of new construction.

Contact our team for a free feasibility assessment of your circular clarifier.

DAGYEE Water Technology
Enhancing round tank performance.

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