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In water treatment processes, the use of coagulants such as Alum and Ferric Chloride is essential for removing colloids and suspended solids from the water. The resulting sludge, containing 15%-30% dried solids (ds), needs to be efficiently conveyed to a disposal container. However, the conveyance of Alum and Ferric sludges can be challenging due to their sticky and viscous nature.
In water treatment, Alum and Ferric Chloride are used as a coagulant with a dewatering device to remove colloids and suspended solids from the water. The result is a 15%-30% dried solids (ds) sludge that has to be conveyed to a disposal container. Alum and Ferric sludges can be difficult to convey
Screw Presses in Wastewater Treatment
Screw presses are commonly used in wastewater treatment plants to dewater sludge before disposal. These devices apply mechanical pressure to the sludge, squeezing out the water and reducing its volume. The dewatered sludge is then ready for further processing or disposal.
Screw Conveyors for Transporting Sludge
Screw conveyors are a popular choice for transporting sludge in wastewater treatment plants. These conveyors consist of a helical screw blade rotating within a trough, effectively moving the sludge from one point to another. The design of the screw conveyor can be customized to handle the specific characteristics of Alum and Ferric sludges, ensuring efficient and reliable transportation.
Application of Screw Conveyor in Waste
The application of screw conveyors in waste management extends beyond wastewater treatment plants. These versatile devices are also used in various industries to convey solid materials, including municipal solid waste, food waste, and industrial byproducts. The flexibility and adaptability of screw conveyors make them an ideal choice for handling different types of waste materials.
Belt Conveyors vs Screw Conveyors in Wastewater Plants
While belt conveyors are another common option for transporting sludge in wastewater treatment plants, screw conveyors offer several advantages in this specific application. Screw conveyors are better suited for handling sticky and viscous materials like Alum and Ferric sludges, providing more efficient and reliable operation. Additionally, screw conveyors have a compact design, requiring less space compared to belt conveyors.
HUBER Lidded Trough Screw Conveyor
In waste water treatment, dewatered Biosolids may be dried to almost eliminate moisture. The result is a 90%-95%ds Dry Biosolids product.
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sewer treatment plant screw conveyor|Application of Screw Conveyor in Waste