Wash Press

The ESP wash press and compactor is a highly efficient system that performs two critical functions: washing and compacting of screenings. This versatile unit can be conveniently positioned directly under a screen with a suitably designed hopper, or it can be fed by a conveyor. In certain applications, it can also be directly fed by a launder channel.

The machine features an inlet hopper connected to a tubular section (the draining section) with a perforated bottom for water discharge. To enhance the removal of organic matter, the hopper can be fitted with an additional washing system. During the transport phase, a system of nozzles performs the washing of the screenings, leading up to the compacting section.

Within the unit, the spiral is equipped with plastic and bolted brushes, ensuring the draining section remains clean and preventing water overflow. The spiral is connected to the drive via a shaft, and a mechanical sealing unit is employed to prevent leakages and protect the drive.

Compacting is facilitated by a “trunk” shaped discharge pipe. The end of this pipe can either discharge directly into a bin or be equipped with a continuous bagging system.

One of the key benefits of this high-compacting system is its ability to significantly reduce disposal costs and odor problems. This is particularly important as many wastewater treatment plants are located near cities or towns.

The ESP wash press and compactor can be manufactured in various combinations of stainless steel (304, 316) and high-strength carbon steel, typically using 304 or 316 for the body. For special applications, materials like AISI 904 or Duplex stainless steel can be provided.

The main advantages of this system include:

• High efficiency and a high degree of screenings cleaning.
• Reduction in odor problems and disposal costs.
• Simplicity in design.
• Extremely easy installation and maintenance.

In typical installation and operational scenarios, the unit requires little to no maintenance for the first 2 or 3 years. Maintenance tasks, when necessary, are straightforward and can be performed on-site with minimal downtime.

Upon request, the unit can be equipped with a control panel, available in either electromechanical or PLC-controlled formats, to meet various operational needs and preferences.