New Met-Chem Filter Presses

In wastewater treatment, particularly in industrial applications, the efficient removal of solid waste from liquids is crucial. One effective combination of technologies used in this process is the lamella clarifier and the filter press. This article explains how a filter press is employed to dry slurry produced by a lamella clarifier, emphasizing its importance in the overall wastewater treatment process.

A lamella clarifier is a type of settler designed to remove particulates from liquids. It operates based on the principle of gravity sedimentation but is more efficient due to its design. The clarifier consists of a series of inclined plates, which increase the surface area available for settling. As the wastewater flows upward through the plates, solid particles settle onto the plates and slide down to the bottom, forming a concentrated slurry.

The slurry collected at the bottom of the lamella clarifier contains a high concentration of suspended solids. This slurry must be further treated to reduce its volume and prepare it for safe disposal or further processing. This is where the filter press comes into play.

A filter press is a batch operation, pressure filtration device that separates solids from liquids. It consists of a series of filter plates covered with filter cloths, arranged in a vertical or horizontal configuration. The plates are held tightly together by a hydraulic system, creating chambers where the slurry is pumped under pressure.

1. Slurry Introduction: The slurry from the lamella clarifier is pumped into the filter press chambers. The pressure forces the liquid to pass through the filter cloth, leaving the solids behind.
2. Formation of Filter Cake: As the slurry is dewatered, the solids accumulate on the filter cloth, forming a layer known as the filter cake. The liquid, now free of most solids, is collected as filtrate and can be either recycled or discharged, depending on the treatment requirements.
3. Compression and Drying: The hydraulic system exerts additional pressure on the filter plates to ensure no leaking, this allows more solids to compress into the filter cake and removing even more liquid. This process continues until the desired dryness of the filter cake is achieved.
4. Cake Discharge: Once the filtration cycle is complete, the hydraulic system releases the filter plates, and the filter cake is discharged. The dried filter cake can then be disposed of in an environmentally safe manner or used in other applications, depending on its composition.

• Efficiency: Filter presses are highly efficient in removing water from slurry, producing a dry filter cake with low moisture content.
• Cost-Effectiveness: By reducing the volume of waste, filter presses help lower disposal costs and minimize the environmental impact.
• Versatility: Filter presses can handle a wide range of slurries with varying solid concentrations and particle sizes.
• Reliability: With proper maintenance, filter presses offer reliable performance and long service life.

Integrating a filter press with a lamella clarifier is an effective way to manage and treat wastewater, especially in industrial settings. The lamella clarifier efficiently concentrates solids, while the filter press dewaters the slurry, producing a dry filter cake that is easier and more cost-effective to handle. This combination not only enhances the overall efficiency of the wastewater treatment process but also contributes to environmental sustainability.

For more information visit us at https://metchem.com/new-clarifiers-manufactured-by-met-chem/ 

 A filter press dewaters solids by using pressure filtration to separate liquids from solids in a slurry. The slurry is pumped into a series of filter plates lined with filter cloths, arranged in a frame. As the slurry enters, pressure is applied, typically through hydraulic mechanisms, forcing the liquid through the cloth and leaving the solid particles behind. The filtered liquid, or filtrate, exits through discharge ports, while the solids form a dense cake on the cloths. Once the cycle is complete, the press opens, and the solid cakes are removed, resulting in significantly reduced water content in the solids. This method is highly efficient for managing wastewater and industrial sludge .