Description
Inclined Plate lamella clarifier – High-Efficiency Pre-Filtration for Cooling Water Systems
WHAT IS LAMELLA CLARIFIER
Cooling water systems are the lifeblood of many industrial facilities—power plants, chemical plants, refineries, and manufacturing sites. These systems depend on reliable heat transfer to keep processes running efficiently. Yet one of the biggest threats to cooling system performance is suspended solids. Particles, sediment, debris, and biological material accumulate in heat exchangers, condensers, and cooling towers, reducing heat transfer efficiency, increasing energy consumption, and leading to costly downtime.
The DAGYEE Lamella Clarifier for Cooling Water Systems provides a high-efficiency solution for removing suspended solids from cooling water. This compact, inclined plate clarifier is designed specifically for pre-filtration before heat exchangers and cooling towers. By reducing the solids load entering sensitive equipment, it protects against fouling, extends equipment life, and maintains optimal heat transfer performance.
This system is ideal for cooling tower side-stream filtration, once-through cooling systems, and make-up water treatment. It is designed for continuous, low-maintenance operation, ensuring that your cooling water system stays clean and efficient year after year.
HOW DOES LAMELLA CLARIFIER WORKS
The cooling water clarifier uses the Lamella Plate settling principle to efficiently remove suspended solids.
The Process Flow
Step 1: Water Entry
Cooling water (or side-stream flow) enters the clarifier through the inlet distribution system. A mixing zone may be included for flocculant addition.
Step 2: Upward Flow Through Plates
Water flows upward through the inclined plate pack. The plates provide a large effective settling area within a compact footprint. Suspended solids settle onto the plate surfaces as the water rises.
Step 3: Solids Slide Down
Settled solids slide down the inclined plates under gravity and collect in the sludge hopper at the bottom of the clarifier. The sludge can be removed manually or automatically.
Step 4: Clarified Water Overflow
The clarified water overflows into collection launders and returns to the cooling water system. The effluent quality is consistently low in suspended solids.
Step 5: Sludge Removal
Accumulated sludge is discharged from the hopper. For continuous operation, automated sludge valves provide scheduled removal without interrupting the flow.
The system can be installed as a full-flow treatment or as a side-stream unit treating a portion of the circulating water.
Technical Specifications-Modle
| Model | Capacities (m³/h) | Piping Connections (mm) | Physical Dimensions (m) | |||||
|---|---|---|---|---|---|---|---|---|
| Inlet | Effluent | Sludge | Backwash | L | W | H | ||
| DCL-005 | 5 | 80 | 80 | 50 | 50 | 2.55 | 1.60 | 2.90 |
| DCL-010 | 10 | 100 | 100 | 50 | 50 | 3.35 | 1.82 | 3.00 |
| DCL-015 | 15 | 100 | 100 | 50 | 50 | 3.35 | 2.02 | 3.00 |
| DCL-020 | 20 | 100 | 100 | 50 | 50 | 3.35 | 2.02 | 3.00 |
| DCL-030 | 30 | 150 | 150 | 50 | 50 | 4.20 | 2.22 | 3.00 |
| DCL-040 | 40 | 150 | 150 | 50 | 50 | 4.00 | 2.80 | 3.00 |
| DCL-050 | 50 | 200 | 200 | 50 | 50 | 4.65 | 2.82 | 3.00 |
| DCL-060 | 60 | 200 | 200 | 50 | 50 | 4.70 | 3.00 | 3.00 |
| DCL-070 | 70 | 250 | 250 | 50 | 50 | 6.40 | 2.60 | 3.00 |
| DCL-080 | 80 | 250 | 250 | 50 | 50 | 6.80 | 2.82 | 3.00 |
| DCL-100 | 100 | 250 | 250 | 50 | 50 | 7.05 | 3.02 | 3.00 |
AVAILABLE DESIGNS KEY
| Feature | Benefit |
|---|---|
| Inclined Plate Arrangement | Settling area many times larger than floor space |
| Optimized Plate Angle | Self-cleaning design—solids slide down by gravity |
| Counter-Current Flow | Enhanced settling efficiency, denser sludge |
| No Moving Parts | Minimal mechanical failure, low maintenance |
| Modular Plate Pack | Easy installation, flexible design |
| Durable Materials | Stainless steel, HDPE, or engineered plastics |
| Integrated Flow Distribution | Even flow distribution across plates |
| Sludge Hopper Collection | Efficient sludge thickening and removal |
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
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Municipal Wastewater Treatment: Primary and secondary clarification
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Industrial Wastewater: Food processing, beverage, pulp & paper, chemical industries
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Water Treatment Plants: Raw water clarification for drinking water production
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Stormwater Treatment: Removal of suspended solids from stormwater runoff
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Process Water Recycling: Clarification for water reuse systems
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Mining Operations: Tailings clarification and process water recovery
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Power Plants: Cooling water treatment and blowdown clarification
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Aquaculture Systems: Water quality maintenance in recirculating systems
Customization Options
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Plate Materials: Choice of stainless steel, polypropylene, PVC, or FRP based on chemical compatibility
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Plate Coatings: Special coatings for specific applications (anti-fouling, anti-static, etc.)
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Inlet Arrangements: Center feed, peripheral feed, or bottom feed configurations
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Sludge Removal Systems: Chain-and-flight scrapers, traveling bridges, or suction systems
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Instrumentation Packages: Level sensors, turbidity meters, sludge density monitors
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Control Systems: Manual, semi-automatic, or fully automated PLC control
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Accessories: Chemical dosing systems, flocculation aids, sampling points
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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
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Proven Design: Hundreds of successful installations worldwide
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Quality Materials: Only premium materials with proper certifications
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Engineering Support: Custom design for specific wastewater characteristics
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Performance Guarantee: Written performance guarantees based on design parameters
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Comprehensive Service: From design to installation, commissioning, and after-sales support
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Cost-Effective Solutions: Competitive pricing without compromising quality
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Technical Innovation: Continuous improvement based on operational feedback
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Global Experience: Applications across diverse industries and regions
Supplier Information
The DAGYEE Lamella Clarifier for Cooling Water Systems provides effective, low-maintenance solids removal to protect your heat exchangers, condensers, and cooling towers. With compact design and flexible installation options, it is the ideal solution for maintaining cooling water quality and extending equipment life.
Contact our team for a free consultation and customized system design.
