This thickener model can thicken sludge from typically 0.4% to 4.0% or above. It will produce a consistent and stable thickened sludge which is difficult to obtain with gravity thickening and impossible to realize with a belt thickener on a similar small footprint. Installing this thickener can also be used to boost the capacity of existing dewatering machines. The thickener is an effective way to reduce sludge volume while maintaining a still semi-liquid and pumpable product.
The machine has a filter element (cylinder) that consists of alternating layers of Fixed Rings and Moving Rings, with spacers in between to maintain a gap that allows filtrate to escape. Inside the cylinder, a single screw conveys and subsequently pressurizes the sludge through the cylinder towards the end plate. As the screw rotates, it drives the moving rings up and down, which cleans the filtrate gap, creating a clog-free and self-cleaning mechanism. Only a very small amount of water at low pressure is periodically used to gently clean the rings from the outside. The design delivers stable thickening performance even with oily sludge.
This model can be installed in places where other types of thickeners would be difficult to install, such as in low-ceiling buildings or where a small footprint is required. This allows it to replace most existing thickeners, often while increasing the capacity. For instance, when comparing the VOLUTE™ to a belt-type thickener, both having a throughput of 30 m³/h, the footprint is about 1/3. Thickeners are also very suitable to replace sedimentation tanks, of which the footprint is another order of magnitude.
You may wonder, “Can the machine dewater the sludge as desired?” or “Is it difficult to operate the machine?”.
In addition to eliminating concerns before purchase, you can also use our products as a replacement machine during the service period of an existing dewatering machine or during the construction period of a wastewater treatment facility.
We use cookies and similar technologies to enhance your experience by processing data like browsing behavior or unique IDs. Withholding or withdrawing consent may impact site functionality.