Sludge dewatering is the process of separating capillary water from sludge. Now widely used Sludge dewatering machine Mainly Centrifugal dehydrator Belt filter press dehydrator and plate and frame filter press.
Centrifugal dehydrators have the advantages of strong ability to adapt to the fluctuation of sludge flow, good sealing, large treatment capacity and small floor area, so they are common in sewage treatment plants. The belt filter press dehydrator can realize continuous operation and is suitable for handling large amounts of sludge, but it needs to clean the filter cloth frequently and consumes large amount of backwash water. The plate and frame filter press is applicable to the situation that the water content of sludge is required to be low, but the operation is more complicated and the maintenance is large.
In sludge dewatering, Horizontal screw centrifuge It is also a common Dehydration equipment 。 It has high centrifugal separation efficiency, can complete continuous feeding, separation and washing procedures at full speed, and has compact structure and good stability. Recumbent snail Centrifuge It is also relatively convenient in terms of maintenance.
In general, the selection of sludge dehydrator depends on the specific application demand and treatment capacity. Different sludge dehydrators differ in treatment efficiency, energy consumption, operation and maintenance, etc. Therefore, appropriate equipment needs to be selected according to the specific situation. Although sludge dewatering is still facing challenges, the sludge dewatering technology will continue to be improved and perfected under the promotion of research and technology development.
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