Wash Press

Washtec is a heavy duty automatic washer/compactor screw equipment. This innovative system is designed to effectively clean and compact screenings.

Upon discharge of debris into the WASHTEC, the equipment initiates cleaning and compacting cycles. The robust screw mechanism continuously pushes the debris into the compacting pipe, while the washing ramp efficiently cleans the debris and reduces organic matter. Once the debris is thoroughly compacted and dried within the pipe, it is conveniently discharged into a dumpster for disposal.

Wash Press Washtec

High performance.

Fast return on investment.
Low, economical maintenance.
Low energy consumption.

Washtec will help optimizing the reduction of solid waste while sending organic back to the treatment​.



The screenings are propelled forward by a heavy duty slow rotating screw while wash water is introduced in the wash/press zone. In this zone, dissolved materials and water are pressed out and returned to the wastewater treatment process.

The control system adjusts the working cycle based on the composition of the screenings. 

The press mechanism transports the washed and pressed screenings through a tubular pipe system.

The design of the Washtec includes double troughs, providing exceptional resistance to torque during heavy operations involving screenings with high DS content. This robust “torque resistance” capability allows for a larger inlet opening to accommodate such screenings.

Washtec Schematic

Features & Benefits

1. Mechanism

A heavy-duty screw continually pushes the debris into the compacting pipe, while a washing ramp effectively cleans the debris and removes organic matter. Once the debris is compacted and dried within the pipe, it is discharged into a dumpster.

The screenings are conveyed and pass through the washing zone (1) using the screw mechanism. In this zone, they undergo washing, and organic materials are removed.

Next, the screw continues conveying and pushing the screenings into the rinsing zone (2).

2. Spray Bar System, Maximum Organics Back In The Process

To enhance the removal of organic material from debris and reintroduce it back into the wastewater process, the Spray Bar System features two spray bars. This dual configuration maximizes the amount of organic material that can be effectively captured and returned to the WTP process.

3. Volume Reduction

After the screenings enter the pipe, they undergo compaction as a result of the pipe’s tubular elbow shape. As the screw continues to operate, the screenings further compact inside the pipe. Ultimately, the compacted screenings are efficiently discharged into a dumpster.

Wash Press Washtec
Wash Press Washtec by Aqualitec
Washed Debris

Design Guidelines

Download PDF

Dry solid concentration greater than 45%
Volume reduction greater than 70%
Capacity: 25,000gallon/day
Water: Non potable but clean water
Water: 2 or 3 washing cycles/hour – cycle is 30 to 60s
Water: Max 20 gal/hour

Water pressure: min 87psi
304 or 316 Stainless Steel
Absorbed power: 7hp (5.22KW)
Voltage: custom to site availability – 3φ required

Washtec Schematic


Wash Press Washtec, Platte County

Platte County – MO

Wash Press Washtec, Westmoreland

Westmoreland – PA

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3415 S. Sepulveda Blvd., Suite 1100, Los Angeles, CA 90034