36 m² Chamber Filter Press Shipped to Malaysia for Marble Cutting Wastewater Treatment

Recently, a chamber filter press with a filtration area of 36 m² and a filter plate size of 800×800 mm completed factory inspection and packing and was shipped to Malaysia. It will be used for a local customer's marble cutting wastewater treatment project. The equipment is mainly used for dewatering sludge after sedimentation of cutting wastewater, achieving solid-liquid separation, reducing sludge volume, and providing conditions for filtrate return and subsequent disposal.
Equipment Structure and Working Principle
The chamber filter press is mainly composed of a frame, filter plates, filter cloth, a hydraulic clamping system, and a feeding system. During operation, multiple filter plates are arranged on the frame. The hydraulic system presses the filter plates together one by one, forming closed filter chambers between adjacent filter plates. Filter cloth covers the surface of the filter plates. After the material is fed into the filter chambers by the feed pump, the liquid passes through the filter cloth and is discharged, while solid particles are retained in the filter chambers and gradually form a filter cake.
The equipment shipped this time has a filter plate size of 800×800 mm and a filtration area of 36 m². Its structure is relatively compact, making it suitable for sludge dewatering needs at small and medium-sized stone processing sites or related wastewater treatment sections.
Characteristics of Marble Cutting Wastewater
Marble processing requires a large amount of cooling water during cutting, edging, and polishing. The resulting wastewater contains stone powder, fine abrasive particles, and flushing sediment, with suspended solids as the main pollutant. The particles in this type of wastewater are relatively fine and can settle after standing. However, if directly reused, they can make the water turbid and affect the cooling effect during cutting. If discharged over the long term, they can also cause sedimentation and blockage in pipes and sedimentation tanks. Therefore, stone processing wastewater usually needs sedimentation treatment first, followed by dewatering of the settled sludge.
Application of Filter Press in Marble Cutting Wastewater
In marble cutting wastewater treatment, a common process is: wastewater collection → preliminary sedimentation in a sedimentation tank → coagulation and flocculation → sludge pumped into the filter press → filtrate return → filter cake transport or subsequent disposal. The filter press mainly handles the sludge dewatering step, pressing the sludge-containing wastewater at the bottom of the sedimentation tank into filter cakes, while the filtrate returns to the front-end system.
Chamber filter presses have good retention effect on fine stone powder particles and produce relatively dry filter cakes, which are easy to load and stack. Therefore, they are used in stone processing wastewater treatment. For stone factories with small daily processing capacity, the 36 m² specification can meet intermittent dewatering needs. For larger sites, multiple units can be used in parallel or as backend dewatering equipment.
Treatment Effect
Under the conditions of reasonable dosing of coagulants and flocculants and proper control of feed pressure and filtration time, the filter press can effectively remove suspended solids from wastewater. The SS removal rate can usually reach more than 90%, and the filtrate is relatively clear. It can be returned to the sedimentation tank or clean water tank, and part of it can be reused for cutting cooling and other links. The moisture content of the filter cake will vary with stone powder particle size, type and dosage of chemicals, and filtration time. In general, a relatively stable filter cake can be formed, which is convenient for transportation and disposal. The specific treatment effect needs to be determined according to on-site water quality, sludge concentration, and operating parameters.
Conclusion
The 36 m² chamber filter press shipped to Malaysia this time will be used for sludge dewatering treatment of marble cutting wastewater at the customer's site. After the equipment is put into operation, it can help the site reduce sludge volume, improve circulating water quality, and provide convenience for subsequent wastewater reuse and outbound disposal. The actual operating effect still needs to be further confirmed based on on-site commissioning and working conditions.