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Integrated Airport Lamella Sedimentation Tank Clarifier Waste Water Treatment Equipment
Lameila is a new type of high-efficiency water purification and clarification technology with rapid sedimentation, primarily aimed at removing solids or particulate matter;
It is now widely used in water and wastewater clarification, as well as sludge thickening and clarification reaction treatment;
it has an advantage as the suspended solids concentration increases, allowing all solids that settle within a given time to be easily and economically separated.
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1. Good laminar flow state, more stable sedimentation
Using a parallel inclined plate structure with a large plate spacing, the water flow forms a stable laminar flow state between the plates, resulting in a low Reynolds number and effectively preventing particle resuspension.
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2. High processing efficiency and strong impact resistance
Based on the shallow pool principle, utilizing unique water distribution and inclined plate reflocculation, the surface load is 3-5 times that of an inclined tube sedimentation tank, with significantly superior shock load resistance.
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3. Modular design, occupying a very small area
With a compact and modular structure, it occupies only 1/25 of the area required by a horizontal sedimentation tank, greatly saving space for civil engineering and making it ideal for renovation projects where land is scarce.
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4. Equipped with self-cleaning feature, ensuring easier maintenance
Integrated with an online backwash system, it supports cleaning without stopping water supply and has an optimized sludge discharge system. Compared to inclined tubes that are prone to clogging, the Lameira is less likely to accumulate sludge and has lower maintenance costs.
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5. Suitable for high loads and wide adaptability
Although the initial material cost is slightly high, the operating cost is low, making it particularly suitable for complex wastewater treatment and upgrading scenarios involving high loads, oil, or fibrous impurities.
| Comparative items | Lamella Sedimentation Pond | Conventional inclined tube sedimentation tank |
|---|---|---|
| Structural form | Parallel inclined plate structure, plate spacing 50–100mm, inclination angle 50°–60° | Honeycomb hexagonal / rectangular tubular components, pipe diameter 25–50mm, inclination angle 60° |
| Hydraulic conditions | Laminar flow of water, Reynolds number <200, Froude number 10⁻³~10⁻¹ | Smaller hydraulic radius, Reynolds number ＜200, more stable flow, Froude number 10⁻³~10⁻⁴ |
| Processing Efficiency | Surface load is 2–4 times that of traditional sedimentation tanks, treatment capacity is 9–25 times that of horizontal flow tanks, sedimentation efficiency is 3–5 times that of inclined tube tanks, flow rate can be increased by 15%–35% | Surface load 3–5 m³/(m²・h), removal rate of particles above 10μm 90%, retention time 15–30min |
| Shock Resistance and Adaptability | Stronger resistance to shock load, suitable for high load scenarios | Stronger adaptability to raw water with high turbidity |
| Space Occupation and Installation | Modular design, occupying only 1/25 of the area of a horizontal flow sedimentation tank | Higher installation space requirements |
| Maintenance Characteristics | Equipped with online backwashing system, can be cleaned without stopping the water supply, sludge discharge system is optimized, not prone to blockage | Structurally dense, prone to silt accumulation, requires regular cleaning, maintenance costs are high |
| Investment and Operation | Material costs are 20%–30% higher, operating costs are low | Less material consumption, low initial investment |
| Application Scenarios | Limited space, sewage treatment upgrades, oil-containing / fibrous impurity wastewater (e.g., papermaking) | Low flow rate, high turbidity water treatment (e.g., Yellow River water purification) |
The inclined plate sedimentation tank is a high-efficiency solid-liquid separation device based on lamellar sedimentation theory.
Sewage flows into the tank and passes through a group of closely arranged inclined plates. Under gravity, suspended solids in the wastewater settle onto the plate surfaces, forming sludge that slides down to the sludge hopper at the bottom.
The inclined structure greatly increases the effective sedimentation area and shortens the settling distance of particles, significantly improving separation efficiency while reducing the overall footprint and residence time. Clean water after sedimentation overflows from the top outlet for subsequent treatment.
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