Inside an 80,000 m³/day River Water Treatment Upgrade | Yimei Lamella Clarifier Case Study

Our team recently completed a river water treatment project in Central Asia. At the client’s request, the project needed to be expanded to a treatment capacity of 80,000 m³/day. The raw water was sourced from the Karatamar Reservoir, with the key parameters including:

Treatment Challenges:
To fully achieve the operator’s objectives, several project challenges had to be overcome. For a large-scale river water treatment project, the treatment capacity, fluctuations in raw water quality, and subsequent treatment requirements were all key factors that needed to be carefully considered in the system design. This project required a treatment capacity of 80,000 m³/day, which meant that the system needed to handle a large volume of raw water every day. The front-end solid-liquid separation and sedimentation stages needed to achieve high treatment efficiency while maintaining stable equipment performance.

The turbidity, color, iron, and other suspended and colloidal impurities in the raw water also placed higher demands on the clarification process. In particular, when the raw water quality fluctuates, conventional sedimentation methods may require a larger footprint to meet the required treatment capacity. After multiple rounds of comparison and communication, the design proposed by the Yimei engineering team was selected.

Using a Lamella Clarifier

The Lamella Clarifier solution provides the client with a flexible and compact design that is easy to operate while freeing up valuable site space for potential future use. Its flexible configuration also allows for easy modifications and upgrades as project requirements evolve. Overall, the Lamella Clarifier upgrade solution enables the client to meet the project's key success factors by delivering excellent water quality with a small footprint while minimizing capital and energy costs. Another advantage is that Lamella Clarifier technology has recently been applied to wastewater treatment plant upgrade projects in other regions, further demonstrating its reliability through proven practical applications.

Working Principle of a Lamella Clarifier

From a technical perspective, a Lamella Clarifier enhances the sedimentation process by increasing the effective settling area without requiring a larger tank. The key lies in its inclined plates, which create a greater surface area for particles to settle. When water enters the lamella clarifier, it flows upward between the plates. Particles settle onto the plates and slide down into the sludge collection area. Meanwhile, the clarified water flows out from the top, ready for subsequent treatment.

The efficiency of the system is typically measured by the solids loading rate, which refers to the total amount of solids that the clarifier can handle per unit of time. Because the lamella clarifier maximizes the effective settling area, it can handle a higher solids loading rate compared with conventional clarifiers, making it particularly suitable for applications where space is limited or influent flow rates are high. It is commonly used for river water treatment, surface water treatment, industrial wastewater treatment, as well as pretreatment and upgrades of wastewater treatment plants.

Yimei: More Efficient Wastewater Treatment Solutions

With extensive project experience, Yimei is a trusted Chinese manufacturer. Our wastewater treatment plants have been recognized in many different countries. Our engineering team customizes solutions and integrates them into different wastewater treatment processes based on wastewater characteristics, flow rate, and required treatment performance. We provide full-process services covering process design, equipment manufacturing, delivery, and technical support.

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