Following dewatering using two screw presses, the sludge is collected, conveyed and then distributed across three solar drying lines. This process enables the operator to reduce energy consumption for sludge dewatering and drying by a factor of nine, thereby fully aligning with its ambitious strategy for the energy transition.
Once drying is complete, the dried sludge is collected at the other end of the greenhouse and transported for final disposal.
Main components supplied:
- ️Collection and conveyance of the dewatered sludge
At the outlet of the two screw presses, the dewatered sludge is first collected by a Sodimate screw conveyor. A second screw conveyor then transports the sludge to the distribution system in the solar drying greenhouse.
These initial conveying stages ensure the continuous transport of the dewatered sludge from the mechanical dewatering stage to the drying process.
- ️Distribution in the solar drying greenhouse
The sludge is then fed into a suspended Sodimate screw conveyor, which is mounted above the three drying lines.
- Length: 32 metres
- 12 discharge points
- 4 discharge points per drying line
- Distribution across 3 drying lines with turning bridges
This system ensures that the sludge is evenly distributed throughout the greenhouse before solar drying begins.
Inside the greenhouse, solar energy aids the evaporation of residual moisture. Three sludge turners regularly turn and aerate the sludge throughout the drying process.
- ️Collection of the dried sludge
At the opposite end of the greenhouse, the dried sludge is collected by a separate, 33-metre-long Sodimate screw conveyor installed underground. This screw conveyor takes the dried sludge after solar drying and transports it to the final storage area.
- ️Conveyance and distribution to final storage
The dried sludge is then transported to the storage area using further Sodimate systems, including:
- a vertical screw conveyor
- a horizontal distribution screw conveyor
- and distribution to the individual storage cells
ONE process. ONE complete conveying system.
From the discharge points of the two screw presses right through to the final storage cells, the Sodimate systems support every stage of the sludge transport process:
- Collection at the outlet of the two screw presses
- Conveying to the solar drying greenhouse
- Distribution via 12 discharge points across three drying lines
- Collection following solar drying
- Vertical conveyance
- Distribution to final storage
From dewatering to final storage, each stage of the conveying process contributes to the continuity and reliability of the entire sludge treatment process.
A reference project that impressively demonstrates Sodimate’s expertise in the field of sludge conveying and handling solutions for sewage treatment works.
