Description

Cross-Flow lamella clarifier – High-Efficiency Solids Removal with Integrated Flocculation for Municipal & Industrial Water Treatment

WHAT IS LAMELLA CLARIFIER

Construction sites, land development projects, and urban stormwater systems face a common challenge: sediment-laden runoff that must be treated before discharge. Rain events wash soil, sand, and debris into drains and waterways. Excavation dewatering pumps out turbid water containing fine silts and clays. Regulatory permits strictly limit turbidity and total suspended solids in discharged water. Failure to comply can result in fines, project delays, and environmental damage.

The DAGYEE Lamella Clarifier for Stormwater & Construction Runoff provides a practical, cost-effective solution for sediment removal. Unlike large settling ponds that require significant land area, this compact clarifier removes suspended solids quickly and efficiently in a small footprint. It is designed for rapid deployment, easy operation, and minimal maintenance – ideal for construction sites, urban runoff, and temporary dewatering applications.

This clarifier produces clear water that meets discharge permit requirements while concentrating solids for easy disposal. Its portable, skid-mounted design allows it to be relocated as projects progress or moved between sites, offering an effective and flexible solution for construction companies, civil contractors, and municipal stormwater managers.

HOW DOES LAMELLA CLARIFIER WORKS

The lamella clarifier is specifically well-suited for stormwater and runoff applications due to its ability to handle variable flows and high solids loading while maintaining a compact footprint.

The Process Flow

Step 1: Runoff Collection and Pumping
Stormwater or dewatering water is collected and pumped to the clarifier. A coarse screen removes large debris, trash, and vegetation that could damage the plate pack.

Step 2: Optional Flocculation
For fine silts and clays that do not settle quickly, an optional flocculation system injects polymer to form larger, heavier flocs. This dramatically improves clarity and can be adjusted based on site conditions.

Step 3: Lamella Clarification
The water enters the clarifier and flows upward through the inclined plate pack. The large effective settling area captures particles efficiently – even during high-flow storm events. Solids settle onto the plates and slide to the sludge hopper.

Step 4: Clear Discharge
Clarified water overflows from the top of the clarifier and is discharged to the receiving water, storm drain, or infiltration system – meeting permit requirements.

Step 5: Sludge Accumulation
Sediment accumulates in the sludge hopper and is discharged periodically via a manual valve or automated system. The concentrated sludge volume is far smaller than the original runoff volume, reducing disposal costs.

Technical Specifications-Modle

AVAILABLE DESIGNS KEY

What the System Removes

Lamella Clarifier Application

Construction Site Dewatering
Excavation dewatering, trench dewatering, and foundation drainage produce turbid water that must be clarified before discharge. The clarifier can be set up alongside the excavation and relocated as the work progresses.

Land Development
During grading and earthworks, stormwater runoff carries sediment from disturbed areas. The clarifier treats runoff before it leaves the site, protecting nearby waterways.

Urban Stormwater Management
Municipalities use clarifiers to treat runoff from street sweeping, catch basin cleaning, and other maintenance operations where sediment is a concern.

Highway and Infrastructure Projects
Road construction, bridge projects, and pipeline installations require sediment control for environmental compliance. The clarifier provides a mobile, effective solution.

Dredging Operations
Dredged material dewatering and water treatment benefit from lamella clarification to meet discharge limits.

Industrial Site Runoff
Manufacturing and storage facilities use clarifiers to treat runoff from yards and loading areas before discharge.

Emergency Response
Spills and environmental incidents sometimes require rapid water treatment. The portable clarifier can be deployed quickly.

• 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

Installation Options

Full-Flow Installation
The clarifier is installed in the main cooling water return line, treating the entire flow before the water enters the cooling tower or heat exchangers.

Side-Stream Installation
A portion of the circulating cooling water is diverted through the clarifier and returned. This is a cost-effective approach for maintaining overall system cleanliness without treating the entire flow.

Make-Up Water Treatment
The clarifier is installed on the make-up water line to remove suspended solids before they enter the cooling system.

Pre-Filter Installation
The clarifier is installed ahead of heat exchangers or condensers to provide immediate protection against particulate fouling.

Why Choose DAGYEE Lamella Clarifiers

• 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 Lamella Clarifier for Stormwater & Construction Runoff provides an effective, portable, and cost-effective solution for sediment removal at construction sites, land development projects, and municipal stormwater applications. Quick to deploy, simple to operate, and compliant with discharge permit requirements, it is the ideal choice for environmental compliance on the go.

Contact our team for a free consultation and rental or purchase quote for your site.

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