The compact, slow moving, quiet design of the Prime Rotary Fan Press® integrates easily into any facility, requiring no structural building modifications. Continuous dewatering within enclosed vertical dewatering channels makes it the dewatering system with the highest throughput per area of floor space required.
On average, the Prime Rotary Fan Press® uses 13-20 pounds polymer per ton of biosolids comparable to other dewatering technologies to achieve dry cake solids and help reduce hauling costs.
One of the best features is that the Prime Rotary Fan Press® is fully expandable without purchasing new equipment. Machines can come in up to 4 dewatering channels that require minimal upgrades to extend your dewatering capacity.
Energy cost is one of the largest expenses associated with a dewatering system. The slow revolution of the Prime Rotary Fan Press® (1 to 2 rotations per minute) minimizes the energy required to operate. Depending on the model, the system uses .75-13 horsepower—15-20 percent less energy than the belt press and nearly 90 percent less than the centrifuge.
| Application |
Average Feed |
Polymer lbs/ton D.S. |
Capture Rate % | Dry Cake Solids % |
|---|---|---|---|---|
| Primary Sludge | 2-6 | 4-8 | 96-98 | 28-38 |
| Anaerobic Digested | 1-4 | 8-12 | 94-97 | 20-28 |
| Aerobic Digested | 1-3 | 10-14 | 92-96 | 15-22 |
| Primary & Secondary | 1-4 | 8-10 | 93-97 | 20-32 |
| Waste Activated Sludge (WAS) | 1-3 | 9-15 | 92-97 | 15-22 |
| Sequencing Batch Reactor (SBR) | .75-2 | 9-15 | 92-97 | 16-23 |
| Alum Sludge | 5-9 | 8-14 | 94-97 | 22-30 |
| PAC 20 | 6-10 | 8-14 | 95-98 | 25-35 |
| Lime Sludge | 5-9 | 8-14 | 95-98 | 28-45 |
| Septage | 8-12 | 7-10 | 95-98 | 28-38 |
| Grease Traps (Lime Treated) | 1-4 | 9-15 | 93-96 | 38-48 |
| Dissolved Air Flotation (DAF) | 3-5 | 8-14 | 95-98 | 20-28 |
| Dairy Manure | 3-8 | 8-14 | 94-97 | 26-38 |
| Swine Manure | 1-4 | 7-10 | 94-97 | 24-36 |
| Concrete Reclaim | 5-15 | 7-10 | 95-98 | 28-45 |
| Coal Refuse | 3-5 | 4-8 | 95-98 | 60-70 |
Drying beds were not getting the job done at the Lancaster, South Carolina WWTP. This weather sensitive dewatering method was not effective in the winter months when sludge could not be land applied. Lancaster had a small storage facility that would reach capacity in 1.5 months – not enough to last through the winter season.
One of the bigger installations in Madisonville, Kentucky replaced their belt presses. This new Rotary Fan Press 2.0 type 48 Quad was installed in March 2015, and replaced a double belt filter press, installed in 1996, when the treatment system of Madisonville was built.
The city was using drying beds to thicken the residential sewage it processed. The beds were labor intensive year round. Since the beds were weather dependent, it was challenging to maintain a routine schedule and keep up with sludge processing.
Brewery wastewater mainly consists of two streams: 1) residual substance from production & biological augmentation; and 2) cleaning of fermentation and storage tanks as well as vat and bottle rinsing. “Sludge” and sludge dewatering is often the final liquid / solid separation step between breweries and industrial treatment plants.
Specialty
Package Wastewater Plants
Lift Stations
Chopper Pumps
Grinder Pumps
E/One Replacement
Pressure Sewer Systems
Wine Industry
Sludge Dewatering
Contact Us
Mailing:
PO Box 846
Wilsonville, OR 97070
Shipping:
138 S. Hazel Dell Way, Suite 112
Canby, OR 97013
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