CHAMBER FILTER PRESSES FOR SLUDGE DEWATERING AND SOLID-LIQUID SEPARATIONWe manufacture PFK chamber filter presses designed for sludge dewatering and pressure filtration of liquids containing suspended solids. We offer PFK-800, PFK-1000 and PFK-1200 models, with the press size and number of plates selected according to the type of sludge, required capacity and expected dewatering result.
We carry out test filtration, select filter cloths and polyelectrolytes, and determine the degree of automation and additional equipment individually for each installation. We can supply either the filter press itself or a complete sludge dewatering system as part of the equipment for a new or modernised wastewater treatment plant.
A chamber filter press is designed for pressure separation of the liquid and solid phases. Sludge is fed into chambers formed between the filter plates, where the liquid passes through appropriately selected filter cloths, while the solids remain in the chambers and form a dewatered filter cake.
PFK presses can operate in municipal and industrial wastewater treatment plants as well as in technological processes requiring effective separation of suspended solids from liquids. They are used, among other applications, in chemical, food processing, electroplating and tannery plants.
The degree of dewatering achieved depends on the type of sludge, its preparation, the filter cloth used and any filtration aids applied. Examples of dry solids contents obtained during dewatering are:
Reducing the water content decreases the mass and volume of sludge sent for transport, storage or further management. This is particularly important for sludge where collection and disposal generate significant costs.
We can select the size of the chamber filter press on the basis of test filtration carried out using a test press. This makes it possible to evaluate the behaviour of a specific sludge, determine the achievable dewatering result and select the appropriate equipment configuration.
During testing, we also select filter cloths and, where required by the process, polyelectrolytes supporting filtration. This allows the press parameters to be determined on the basis of the actual properties of the sludge rather than theoretical data alone.
The PFK-800 is the smallest of the chamber filter press series presented. Depending on the version, we use between 35 and 68 plates. The unit is 1300 mm wide and 1700 mm high, while its length ranges from 3900 to 5800 mm depending on the number of plates.
| Press type | Number of plates | Press capacity | Sludge after filtration | Dimensions L × W × H |
|---|---|---|---|---|
| PFK-800/35 | 35 | 0.40 m³ | 1.20 m³ | 3900 × 1300 × 1700 mm |
| PFK-800/46 | 46 | 0.55 m³ | 1.65 m³ | 4500 × 1300 × 1700 mm |
| PFK-800/57 | 57 | 0.70 m³ | 2.10 m³ | 5100 × 1300 × 1700 mm |
| PFK-800/68 | 68 | 0.80 m³ | 2.40 m³ | 5800 × 1300 × 1700 mm |
The PFK-1000 is designed for installations requiring a larger filter chamber capacity. Depending on the configuration, we use between 35 and 103 plates. The unit is 1500 mm wide and from 4200 to 8100 mm long.
| Press type | Number of plates | Press capacity | Sludge after filtration | Dimensions L × W × H |
|---|---|---|---|---|
| PFK-1000/35 | 35 | 0.70 m³ | 2.10 m³ | 4200 × 1500 × 1900 mm |
| PFK-1000/42 | 42 | 0.80 m³ | 2.40 m³ | 4600 × 1500 × 1900 mm |
| PFK-1000/49 | 49 | 0.90 m³ | 2.70 m³ | 5000 × 1500 × 1900 mm |
| PFK-1000/55 | 55 | 1.00 m³ | 3.00 m³ | 5400 × 1500 × 2000 mm |
| PFK-1000/69 | 69 | 1.30 m³ | 3.90 m³ | 6200 × 1500 × 2000 mm |
| PFK-1000/103 | 103 | 2.00 m³ | 6.00 m³ | 8100 × 1500 × 2000 mm |
The PFK-1200 is the largest of the series presented. Depending on the version, the press can be equipped with between 39 and 141 filter plates and provide a chamber capacity of up to 4.00 m³. The unit length ranges from 4800 to 11000 mm.
| Press type | Number of plates | Press capacity | Sludge after filtration | Dimensions L × W × H |
|---|---|---|---|---|
| PFK-1200/39 | 39 | 1.00 m³ | 3.00 m³ | 4800 × 1700 × 2200 mm |
| PFK-1200/48 | 48 | 1.30 m³ | 3.90 m³ | 5400 × 1700 × 2200 mm |
| PFK-1200/71 | 71 | 2.00 m³ | 6.00 m³ | 6700 × 1700 × 2200 mm |
| PFK-1200/94 | 94 | 2.60 m³ | 7.80 m³ | 8100 × 1700 × 2200 mm |
| PFK-1200/113 | 113 | 3.20 m³ | 9.60 m³ | 9300 × 1700 × 2200 mm |
| PFK-1200/141 | 141 | 4.00 m³ | 12.00 m³ | 11000 × 1700 × 2200 mm |
We supply complete sludge dewatering systems equipped with a PFK chamber filter press, a polyelectrolyte preparation and dosing station, a feed pumping system and a control cabinet.
The installation can additionally be equipped with screw or belt conveyors for removing dewatered sludge and equipment for further sludge hygienisation. Where the process requires continuous dewatering, we also offer belt filter presses for this area of application. We carry out installation and commissioning of the equipment and provide operator training.
We select the degree of automation according to the user’s requirements. The control system can operate a single press or a group of several presses and synchronise their operation with pumps, the polyelectrolyte station and other equipment in the process line.
As a manufacturer of filter presses, we can adapt the unit size, number of plates, filter cloths, sludge preparation method and installation equipment to the requirements of the specific process. The scope of supply can include test filtration, press selection, installation design and manufacture, assembly, commissioning and operator training.
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