Centrifugal dewatering and plate frame dewatering are two common sludge dewatering methods, each of which has advantages and disadvantages.

1、 Centrifugal dewatering:

Advantages of centrifugal dehydration:

1. Continuous operation, high processing efficiency.

2. The moisture content of dewatered sludge is low, which is conducive to subsequent treatment and disposal.

3. Small floor area, convenient equipment installation and maintenance.

Disadvantages of centrifugal dehydration:

1. High energy consumption and operation cost.

2. High requirements for sludge properties, viscosity and fiber Sludge treatment The effect is poor.

3. Dewatered sludge has high oil content, which is not conducive to sludge disposal.

2、 Plate and frame dehydration:

Advantages of dehydration of plate and frame:

1. Intermittent operation, low energy consumption and low operation cost.

2. Low requirements on sludge properties, applicable to all types of sludge.

3. The moisture content of dewatered sludge is low, which is conducive to subsequent treatment and disposal.

Disadvantages of dehydration of plate and frame:

1. The treatment efficiency is low, which requires a certain time for dehydration.

2. It occupies a large area, and the equipment installation and maintenance are relatively complicated.

3. The plate and frame are easy to be blocked, and the filter cloth needs to be cleaned and replaced regularly.

To sum up, centrifugal dehydration and frame dehydration have their own advantages and disadvantages. Continuous operation of centrifugal dewatering, high treatment efficiency, but high energy consumption, high requirements for sludge properties; Plate and frame dehydration operates intermittently, with low energy consumption and low requirements for sludge properties, but low treatment efficiency and large floor area. When selecting the dehydration method, it is necessary to comprehensively consider the specific situation and select the most suitable dehydration method.

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