Comparison of Belt Filter Press and Multi-disc Screw Press

1. Sludge Blockage

In the solid-liquid separation process, the sludge will be sometimes blocked in the belt filter press. In order to prevent sludge blockage, a large amount of water should be used for flushing, which increases the waste of water sources. In addition, once the belt filter press was blocked, it should be shut down for maintenance, can’t be running 24 hours continuously.

The filtering zone of multi disc screw press is composed of screw shaft, fixed rings and moving rings. With the rotation of the screw shaft, the moving rings are pushed to rotate, continuously clean the dirt in the gap, completely prevent sludge blockage.

2. Operating Cost

Building a wastewater treatment plant is not difficult, but ensuring its normal operation is not easy, because the operating cost of belt filter press is very high, including charges for water and electricity, labor costs, and maintenance fees.

The motor power of multi disc screw press is very small, it operates at low speed, so the power consumption is very low. Due to the self cleaning structure of multi disc screw press, the water consumption is very low too. In addition, multi disc screw press can operate continuously without human management, saves a lot of labor costs.

3. Operation Requirements

In order to ensure the normal operation of belt filter press, it is necessary to provide long-term systematic training and guidance to the operators in advance.

The operation of multi disc screw press is safe and easy, it is automatically controlled. The operators can easily master the usage of this machine after received short-term simple training and guidance.

4. Supporting Facilities

The multi disc screw press can directly dehydrate the sludge with a concentration of 2000 mg/L or above, there is no need to build concentration and storage tanks. Therefore, it greatly reduces the construction cost and land space of wastewater treatment plant, and reduce the release of phosphorus and odors at the same time.