EMO worldwide famous combined unit is addition of a GBT and the BFP. It has been designed by EMO to suits perfectly any municipal or industrial with a low concentrated sludge.
EMO combined unit design is composed of 4 GBT types from 2 to 5 m to fit perfectly with the project data, requirement and belt press of equivalent GBT belt width.
ADVANTAGES
- Lowest polymer & electricity consumption
- High capture rate with efficient thickening area
- Continuous and smooth sludge processing
- No noise or vibration
- No special civil basement
- Long version: no operation platform needed
EMO Combined System GBT / BFP – sludge dewatering
OPERATING PRINCIPLE
Polymer is injected into the main feed pipe upstream of the combined unit. Preliminary flocculated sludge is fed into the horizontal and integrated flocculation tank of the GBT to finalize and mature flocs. Prepared flocs overflow smoothly on the full width of the GBT; then starts the thickening process with help of blade, drainage ploughs and surface pressing roller. When thickened sludge is removed from the belt, roughly 70% of the free water is removed and sludge reaches about 6%. The thickened sludge slides from the belt scrapper to the BFP feed.
When the carpet of thickened sludge is equalized by a first surface pressing and then equalizing by the surface roller of the BFP feed, sludge is squeezed between the two BFP belts, the dewatering starts. BFP roller diameter decreases along the pressing stage to increase the pressure on sludge in order to reach the final sludge dewatering dryness (which can be from 20 up to 40%) according to sludge characteristics. Dewatering cake is scrapped out from the belt with the blade and falls into any conveyor.
Note: throughout the process, attention is given not to weaken the flocs at any stage in order to give the lowest polymer
consumption but the highest capture rate and final dryness.
RANGE and PERFORMANCES
A wide range of units designed by EMO to suit perfectly any municipal or industrial with a low concentrated sludge.
- Hydraulic flow rate: 10 to 160 m³/h
- Belt length up to 5 meters to feed the BFP with homogeneous carpet of 6% mini
- Dryness can reach 35% depending on sludge characteristics
- Solids capture rate 95% to 97%