Description

High-Rate lamella clarifier – Compact Sedimentation for High-Flow & Limited-Space Applications

WHAT IS LAMELLA CLARIFIER

In many water and wastewater treatment applications, space is at a premium. Urban treatment plants have limited expansion areas. Industrial facilities have tight layouts. Upgrading existing plants often requires fitting new capacity into the same footprint. Conventional clarifiers simply cannot provide the required capacity in the available space.

The DAGYEE High-Rate Lamella Clarifier is designed for exactly these situations. By combining optimized plate spacing, enhanced flow distribution, and compact design, this system achieves hydraulic loading rates up to three times higher than conventional clarifiers. It provides high-efficiency solids removal in a footprint that is a fraction of traditional sedimentation basins.

This system is ideal for plant expansions where no additional land is available, for high-flow industrial applications, and for municipal upgrades that require more capacity in the same footprint. It is also the perfect solution for high-velocity stormwater treatment and other applications where rapid settling is essential.

HOW DOES LAMELLA CLARIFIER WORKS

The lamella clarifier operates on the principle of shallow-depth sedimentation, which has been extended to a parallel plate system.

The Basic Principle
In a conventional clarifier, particles settle vertically. The settling velocity depends on particle size, density, and the upward flow velocity of the water. To achieve effective separation, the basin must be large enough to keep upward flow velocities lower than particle settling velocities.

In a lamella clarifier, inclined plates dramatically increase the effective settling area. The horizontal projection of each inclined plate provides additional settling surface, so the total effective area is the sum of the horizontal projections of all plates. As a result, a lamella clarifier can achieve the same performance as a conventional clarifier occupying much more floor space.

The Process Flow

Step 1: Chemical Conditioning
Raw water enters the flocculation tank. Coagulant and flocculant are added to form dense, rapidly settling flocs.

Step 2: High-Rate Plate Settling
The flocculated water enters the Lamella Plate pack. The closely spaced plates provide an exceptionally large effective settling area. Water flows upward between the plates at a higher velocity than conventional systems, yet the dense flocs settle rapidly.

Step 3: Rapid Solids Removal
Solids settle onto the plates and slide down to the sludge hopper. The steep hopper angle prevents bridging and ensures consistent discharge.

Step 4: High-Quality Effluent
The clarified water overflows into collection launders. The effluent quality meets stringent discharge limits, even at high flow rates.

Step 5: Sludge Discharge
Thickened sludge is removed manually or automatically, depending on the configuration.

Continuous Operation
The high-rate system operates continuously, handling flow variations without compromising performance. The rapid settling rate allows the system to respond quickly to changes in feed conditions.

AVAILABLE DESIGNS KEY

What the System Removes

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

• 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

• Proven Design: Hundreds of successful installations worldwide

• Quality Materials: Only premium materials with proper certifications

• Engineering Support: Custom design for specific wastewater characteristics

• Performance Guarantee: Written performance guarantees based on design parameters

• Comprehensive Service: From design to installation, commissioning, and after-sales support

• Cost-Effective Solutions: Competitive pricing without compromising quality

• Technical Innovation: Continuous improvement based on operational feedback

• Global Experience: Applications across diverse industries and regions

Supplier Information

The DAGYEE High-Rate Lamella Clarifier provides efficient solids removal in a compact footprint. Designed for applications where space is limited but high flow rates must be handled, it offers rapid, reliable performance with minimal installation and operating costs.

Contact our team for a free consultation and customized high-rate clarifier design for your application.

DAGYEE Water Technology
High-rate clarification. Compact. Reliable. Efficient.

Inquiry Us