Application of Chamber Filter Press in Wastewater From Smoke Cleaning

The wastewater generated during the smoke cleaning process contains a large amount of suspended particles, heavy metals, and pollutants that are difficult to degrade. Conventional sedimentation or physical and chemical methods are difficult to achieve efficient treatment. The chamber filter press, with its excellent dehydration performance and filter cake thickness, performs particularly well in this scenario. The following is the application of a chamber filter press in wastewater from smoke cleaning.

Reasons for Treating Smoke Cleaning Wastewater

In the smoke cleaning system, water is used to capture dust and harmful substances in high-temperature smoke. The wastewater produced has complex components, including high-concentration suspended solids, heavy metal ions (such as lead, zinc, chromium, etc.), fine granular impurities, some oil and organic pollutants, etc.

If these substances are discharged directly without treatment, they will cause serious pollution to the water body and even affect the stable operation of the subsequent reuse water system. Therefore, the use of recessed filter press becomes the key.

Treatment Process

Pretreatment stage
Preliminary removal of large particle impurities to prevent subsequent equipment clogging. Add flocculants (such as PAC/PAM) to promote the formation of floccules of fine particles and heavy metals; set up reaction tanks and sedimentation tanks to initially reduce the concentration of suspended matter and pollutants.

Recessed plate filter press treatment
The feed pump pumps the high-concentration mud at the bottom of the sedimentation tank into the filter press. Under the action of the filter cloth and the filter plate, pressure filtration is formed, the water is pressed out and discharged through the water collection pipe, and the solid particles form a filter cake, which is automatically discharged after being squeezed dry.

Filter cake disposal
Filter cakes containing heavy metals must be classified as hazardous waste and temporarily stored or handed over to qualified units for disposal. They can be used for resource recycling, such as smelting and recycling, or as building materials.

Advantages of Recessed Chamber Filter Press

High-efficiency solid-liquid separation
Using filter cloth media and a hydraulic system to form a high-pressure state, solid particles in wastewater are intercepted to form a dry filter cake with high water clarity.

High solid content of filter cake
Compared with plate and frame filter press, the filter cake of chamber filter press is drier, which is convenient for subsequent treatment or resource utilization.

Flexible processing capacity
The number of filter plates and filter press size can be customized according to the wastewater concentration and flow rate to adapt to different scales of smoke cleaning systems.

Strong operating stability
Simple structure, low failure rate, suitable for industrial scenarios with high continuity requirements.

Large resource recovery potential
Filter cakes often contain recyclable metal particles, which can be used as metallurgical recycling raw materials or reused raw materials to improve resource utilization.

Conclusion

The application of a recessed plate filter press in the treatment of flue gas cleaning wastewater is an efficient and reliable solid-liquid separation technology solution in the current industrial wastewater treatment process. Especially in the steel, metallurgy, power and other industries.

Application of Chamber Filter Press in Wastewater From Smoke Cleaning