Membrane filter presses are an advanced type of filter press that use special plates fitted with flexible membranes. After the initial filtration stage, these membranes inflate—using water or compressed air—to apply additional pressure on the filter cake. This extra squeezing action removes more moisture than standard filter presses, resulting in a much drier cake, faster cycle times, and improved overall efficiency. These advantages make membrane filter presses ideal for industries such as pharmaceuticals, food and beverage, and hazardous waste treatment, where achieving high dryness levels, reducing drying time, and increasing processing speed are critical for both efficiency and cost savings.
The Membrane Filter Press is an advanced filtration system designed for industries that require superior dewatering performance and reduced moisture content in filter cakes. Unlike conventional chamber filter presses, this machine uses membrane plates that can expand after the filtration cycle to apply extra pressure, squeezing additional water from the cake.
This technology ensures:
Higher dryness of solids.
Shorter filtration cycle time.
Reduced handling and disposal costs.
Dazhang Membrane Filter Press is widely used in chemical, pharmaceutical, food & beverage, mining, wastewater treatment, metallurgy, paper, and textile industries due to its durability, efficiency, and ability to handle both fine and coarse slurries.
The process consists of two main stages:
Slurry (liquid-solid mixture) is pumped into the chambers between filter plates.
The filter cloth captures solids, forming a filter cake.
The filtrate (clean liquid) passes through the cloth and drains out of the system.
Once chambers are full, the membrane plates are inflated using compressed air or water.
The membranes expand uniformly, applying extra pressure on the filter cake.
Additional water is expelled from the cake, reducing its moisture content by up to 20–30% compared to standard filter presses.
Finally, the plates open, and the drier, compact filter cakes are discharged, ready for disposal or reuse.
Time Savings: Faster cycle times compared to conventional filter presses.
