There are different processes specially developed for drying sewage sludge.
Solar Dryer
Drying sewage sludge with solar energy
- Sustainable environmentally friendly process
- Best mixing and ventilation of the entire sludge bed
- Minimized odor and dust through effective back-mixing
- Optimized evaporation performance with low power consumption
- all season operation
The drying process is inside a foiled greenhouse and happens by solar radiation and a floor heating system. Inside the hall the sewage sludge dry solid content reaches ≥ 90% DS. The biogenic granulate can be used for example in cement industry as an alternative fuel replacig coal.
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Belt Dryer
The drying air is recirculated in a closed loop i.e. no odorous drying air is released to ambient.
The belt dryer is a convective dryer and is very safe. Drying air is slowly removing the moisture from the sludge particles and there is no mechanical treatment of the sludge – it is therefore a dust free method of drying.
Features:
- High Product Quality up to 90% desired dry solids
- Low maintenance expenses
- Reduce disposal cost
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