Problem

• The client generated sticky, semi-solid ETP sludge at around 100 kg/hr with approximately 70% moisture.
• Wet sludge was bulky, difficult to handle and store, and expensive to transport for disposal.
• Environmental compliance pressure required a more reliable and sustainable sludge management method.

Proposed Solution

• Gem Drytech supplied an SS 316 paddle dryer with a natural gas fired thermic fluid heater.
• Indirect heating through the paddles and jacket provided controlled drying without direct flame contact.
• Continuous mixing and conveying exposed fresh sludge surfaces for efficient evaporation and stable operation.

Result

• Moisture was reduced from about 70% to below 10%.
• The dried sludge became easier to handle, transport, and dispose of.
• Sludge volume dropped significantly, reducing transport and landfill costs.
• The plant achieved reliable, continuous sludge drying with improved waste management efficiency.

Conclusion

For sticky and pasty sludge streams, indirect paddle drying can offer a compact and dependable solution when corrosion resistance, safe operation, and continuous performance are critical.

Applicability

Suitable for ETP sludge and similar sticky industrial sludge streams in ceramics, foundries, chemicals, and related process industries.