The phenomenon of "open plate is dropped and non-stick filter cloth" when municipal sludge is pressed mud usually means that the dewatering performance of the sludge has been significantly improved, and the selection and use of filter cloth has also reached an ideal state. The following is the effect of this phenomenon and analysis of the reasons:

Effect display

High sludge dewatering efficiency: After the sludge is opened on the filter press, it can be quickly separated from the filter cloth to form a sludge cake with tight structure and low moisture content. This indicates that the dewatering performance of the sludge has been effectively improved, and the time and cost of subsequent treatment has been reduced.

High cleanliness of filter cloth: Because the sludge is non-stick filter cloth, the filter cloth can still maintain a high cleanliness after a long time of use, reducing the frequency of cleaning and replacement, and extending the service life of the filter cloth.

Good operational stability: The phenomenon of non-stick filter cloth makes the operation of the filter press more stable, reducing the downtime and maintenance costs caused by the blockage of the filter cloth.

Cause analysis

Proper sludge conditioning: Before sludge compaction, by adding an appropriate amount of sludge conditioning agent (sludge enhancer), the viscosity and moisture content of the sludge are effectively reduced, making it easier to press into blocks and quickly separate from the filter cloth. The chemical substances in the sludge conditioner can destroy the hydrogen bond between the molecules of the sludge, reduce the viscosity of the sludge, and promote the water diffusion in the sludge to improve its water properties.

Reasonable selection of filter cloth: a synthetic fiber material with good permeability and high strength is selected as a filter cloth, and its pore size and surface characteristics are suitable for treating municipal sludge. Such filter cloth not only has good filtration performance, but also can effectively reduce the adhesion of sludge.

Filter press parameter optimization: By reasonably setting parameters such as compression pressure and time, it is ensured that the sludge can be fully pressed during the filtration process, and at the same time, excessive pressure is avoided to cause damage to the filter cloth.

Appropriate selection and use of agents: In the sludge treatment process, the agent suitable for the nature of municipal sludge is selected, and the dosage of the agent is strictly controlled. This not only improves the coagulation and flocculation effect of the sludge, but also reduces the viscosity and moisture content of the sludge, so as to achieve the effect of non-stick filter cloth.

In summary, the phenomenon of "open plate drop, non-stick filter cloth" is an ideal state in municipal sludge sludge treatment, which indicates that the dewatering performance of sludge has been significantly improved, and the selection and use of filter cloth has reached the best state. This is due to the comprehensive effect of sludge conditioning, filter cloth selection, filter press parameter optimization, and agent selection and use.