When the organic matter content of the sludge is high, the use of plate and frame filter press for mud treatment may indeed cause sticky filter cloth. This is mainly because the sludge with high organic matter content often has a higher viscosity and moisture content, which is easy to adhere to the filter cloth during the filtration process, resulting in clogging of the filter cloth, affecting the filtration effect and efficiency. The following is a detailed analysis of the problem and the corresponding solutions:

Reasons for sludge sticky filter cloth

High sludge viscosity: The sludge with high organic matter content usually has a higher viscosity, which makes it easier for the sludge to adhere to the filter cloth during the filtration process and is not easy to fall off.

High moisture content: high organic sludge often contains high moisture, which increases the difficulty of filtration, making water not easy to be squeezed out, resulting in high moisture content of mud cake, easy to stick to filter cloth.

Improper selection of filter cloth: If the filter cloth material, aperture or surface characteristics are not suitable for the treatment of high organic matter sludge, it may also cause the sludge to adhere to the filter cloth.

Solution

Optimization of sludge treatment process:

In the sludge treatment process, an appropriate amount of coagulant can be added or the process parameters can be adjusted to reduce the viscosity and water content of the sludge.

For particularly viscous sludge, its properties can be adjusted by diluting or adding filter AIDS to make it easier to filter.

Select the right filter cloth:

A synthetic fiber material with good air permeability and high strength should be selected as a filter cloth to ensure that it has good filtration performance and anti-viscosity.

The aperture of the filter cloth should be selected according to the nature of the sludge to ensure the filtration effect and reduce the adhesion of the sludge.

Regular maintenance and maintenance:

Check the use of the filter cloth regularly, and replace the damaged or aging filter cloth in time.

Regularly clean the sludge residue on the filter cloth to maintain its good permeability and filtration effect.

Adjust filter press parameters:

Reasonably set the compression pressure and time to ensure that the sludge can be fully pressed, while avoiding excessive pressure damage to the filter cloth.

Optimize the feed system to ensure that the sludge can quickly and evenly enter the space between the filter plate and the filter frame, improving the filter press efficiency.

Agent selection:

According to the nature of the sludge and the type of filter press to select the appropriate agent for the experiment.

Strictly control the dosage of the agent to ensure the best coagulation and flocculation effect of the sludge, so as to reduce the viscosity and moisture content of the sludge.

In summary, the problem of viscous filter cloth caused by high organic matter content of sludge can be solved by optimizing the sludge treatment process, selecting the appropriate filter cloth, regular maintenance and maintenance, adjusting the parameters of the filter press and selecting the appropriate chemical. These methods can effectively improve the filtration efficiency and product quality, reduce the clogging and replacement frequency of the filter cloth, and reduce the production cost.