Case studies and testimonials
Industrial references
From centrifuge to VOLUTE DUO™: Plastic recycling plant specialised in PVC
PVC sorting and recycling, France
- VOLUTE DUO™ Dewatering Press
- Plastic production / Recycling
- Raw wastewater
- PVC sorting and recycling, France
A prominent plastic recycling company located in France, sought to enhance its sludge management efficiency. With multiple potential sites within the group requiring dewatering solutions, the client aimed to assess the performance of the VOLUTE DUO™ screw press in comparison to their existing centrifuge. The VOLUTE DUO™ technology, known for its adaptability to inorganic and fibrous sludge, was selected for a pilot test to determine its effectiveness for continuous low-maintenance operation in plastic recycling environments.
Installation details
The VOLUTE DUO™ dewatered the raw wastewater from the washing line, after a separation operated by a vibrating filter. Compared to the centrifuge onsite, the VOLUTE DUO™ achieved an equivalent dryness level of 45 %, a higher filtrate quality (with a capture rate of 92% against 84% for the centrifuge) and a lower level of polymer dosage (5-6 g/kg-DS compared with 15g/kg-DS).
The 3-day test confirmed the VOLUTE DUO™ as an effective solution for the plastic recycling sites across Europe. Its consistent performances in pressing inorganic and fibrous sludge together with a lower OPEX makes it an ideal solution to replace the centrifuge.
Wastewater treatment plant conditions and performance data
| Details: | |
|---|---|
| Model: | RVP-241 |
| Sludge type: | Raw wastewater |
| Total solids (TS): | 0.49 % |
| Inorganic content: | 33.8 % |
| Flow rate: | 3 m3/h |
| DS throughput: | 15 kg-DS/h |
| Cake solids content: | 45 % |
| Capture rate: | 92 % |