High Solid Capture Rate

Equipped with a tank for temporarily storing sludge before it is dewatered (sludge conditioning tank). Dramatically increase the efficiency of sludge treatment with a high solid capture rate of over 95%. The sludge conditioning tank can also be used as a reaction tank for inorganic coagulants as needed.

Clog-free Self-Cleaning Design Even with Oily Sludge

The machine has a filter element that consists of alternating layers of rings fixed at four locations (fixed rings) and vertically movable rings (moving rings) maintaining a gap between them, and a single screw that is threaded through the filter element to transfer and compact the sludge.
A clog-free self-cleaning mechanism is achieved since the screw rotates at a constant speed in contact with the moving ring, driving the moving ring to clean the filter element gap.
The design delivers stable dewatering performance even with oily sludge.
The amount of cleaning water for preventing clogging is very small compared to other types of dewatering machines.

Easy Operation & Maintenance

24-hour fully automatic unmanned operation is possible with an automatic operation control using various sensors. There is no need for manual startups or shutdowns whilst operating the machine.
Additionally, there aren’t many daily maintenance items, and on top of that, there are no complicated operations required.
Furthermore, it does not require any special knowledge or skills, making it an easy-to-use product.

No Pre-thickening Required

This machine has an integrated structure in which two processes, thickening and dewatering, are handled by a single filter element, thus allowing the user to directly charge low-concentration sludge having a TS of about 0.2% without any pre-thickening stage.
This not only reduces the construction and operating costs for the thickening and storage systems but also reduces odor because fresh aerobic sludge is dewatered.
The machine can also efficiently capture phosphorus in waste activated sludge to the dewatered cake side, reducing the load caused by phosphorus returning to wastewater treatment.

Conventional Sludge Treatment Process

Aeration Tank Direct Dewatering

Expandable Throughput

The throughput of VOLUTE™ can be easily expanded with its Cylinder Unit. We are ready to meet your expectations, “We want to be prepared for the increase of sludge in the future, but without too much increase in the initial cost…”

Power and Water Saving

Power-saving Operation

The screw that rotates inside the filtration unit of VOLUTE™ operates at an extremely low speed of approximately 2 to 4 rpm, resulting in very low power consumption and economical operation.

Water-saving Design

VOLUTE™ employs a unique self-cleaning mechanism to prevent clogging in the filter element, thereby eliminating the use of large amounts of cleaning water for clogging prevention.

Low Noise/Low Vibration

As our product does not have a high-speed spinning unit, there is no need for noise or vibration concerns, as such, no preventative measures need to be put in place for noise pollution.
Additionally, as there is no vibration from the machine itself, any kind of flooring modifications to accommodate vibrating machines will be unnecessary.

Applicable for Various Sludge Types Throughout Many Industries

VOLUTE DUO™/VOLUTE™ are used across a wide range of industries and facilities, including food and beverage manufacturing, livestock and meat processing, chemical manufacturing, pharmaceuticals, industrial waste treatment, recycling, machinery manufacturing and metalworking, commercial laundry, paper manufacturing, building materials manufacturing, crude oil extraction, apparel and textiles, commercial facilities, water and wastewater treatment plants, and rural community wastewater treatment facilities.

How the Clog-Free Mechanism Works