Here is a video of City Filter Press which designed for marble wastewater treatment and recycling.
It consists of silo tank, automatic filter press, polymer dosage unit and sludge conditioning tank with mixer.
Wastewater from marble & stone cutting and polishing process into a collection tank balance tank. Then with the help of a submersible sludge pump wastewater goes into the silo tank. In the silo tank sludge precipitate through the bottom level and treated water phase into the upper level.
On the bottom level sludge comes the sludge conditioning tank with a pneumatic valve. After this polymer dosage unit dose anionic polymer and mixing a mixer occurs.
Conditioned sludge pumped into the filter press by high-pressure pumps.
Finally, dried sludge cake formed between the filter plates and supernatant water pushed the filter press machine.
The final product is dried sludge cake for the lorry or trucks.
You can find details from http://www.cityfilterpress.com/FilterPress.php
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