Technical Snapshot
| Material | Bio-Sludge from ETP |
| Input Moisture | >85% |
| Final Moisture | <10% |
| Capacity | 1000 kg/hr |
| Heating Medium | Steam / Bio-Gas |
| Operation | Continuous |
Problem
- The paper mill generated approximately 1000 kg/hr of highly sticky bio-sludge with moisture above 85%.
- Wet sludge was difficult to transport, store, and manage, and created odor and compliance issues.
- The sludge had negligible usable value in its wet form and was treated purely as a waste disposal burden.
Proposed Solution
- Gem Drytech supplied a BELTOTHERM sludge dryer engineered for slimy, sticky sludge.
- The system used indirect drying with steam or bio-gas and continuous belt transport for controlled moisture reduction.
- After drying, the material could be fed to the boiler as supplementary fuel.
Result
- Moisture was reduced from above 85% to below 10%.
- Landfill disposal was eliminated and the sludge was converted into a usable fuel source.
- The client reduced external fuel purchase and sludge transport costs.
- The project improved waste handling, compliance, and overall sustainability performance.
Conclusion
This installation demonstrates that with the right drying technology, problematic bio-sludge can be transformed from a disposal liability into an internal energy resource.
Applicability
Relevant for paper-industry bio-sludge and other sticky ETP sludge streams where waste-to-energy recovery is a practical goal.
