Case studies and testimonials
Industrial references
The Chicken Litter Turned into Digested Sludge as a Feedstock for a Biogas Plant
Ecological Bird Farm’s Biogas Plant, Wales
- VOLUTE DUO™ Dewatering Press
- Livestock farm
- Digestate
- Ecological Bird Farm’s Biogas Plant, Wales
VOLUTE DUO™ proved successful again in difficult sludge dewatering.
Background
An ecological bird farm in Wales widely appreciated for their circular farm economy uses the chicken litter turned into digested sludge as a feedstock for their biogas plant. A very fibrous sludge is then thickened to the concentration of approximately 7 % of suspended solids. The customer needed to dewater 10 m3 of thickened digested sludge per day to streamline their procedure.
Installation details
The VOLUTE DUO™ dewatering press proved suitable for this highly fibrous sludge demonstrating a very stable and effective solids-liquid separation. An average of 25 % of DSC in the dewatered cake, and the low-maintenance operation made the contactless twin screws screw press a great fit for this application.
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- VOLUTE DUO™ press
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- Thickening zone
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- Sludge cake
Wastewater treatment plant conditions and performance data
| Model: | RVP–241 |
| Sludge type: | Pre-thickened digested sludge |
| Total solids: | 7.49 % |
| Flow rate: | 0.36 m3/h |
| DS throughput: | 27.0 kg-DS/h |
| Cake solids content: | 25.3 % |
| Capture rate: | 94.0 % |