We provide turnkey sludge dewatering systems for wastewater treatment. Specifically, we recommend centrifugation systems for sludge from biological treatment and screw presses for sludge from chemical-physical treatment, ensuring efficient and reliable operation.
Centrifuges
Centrifuges are used for the continuous dewatering of sludge by separating solids from liquids using high rotational force. The sludge, after adding a suitable polyelectrolyte, enters a rotating drum with a screw conveyor, where high acceleration ensures efficient water removal. Moreover, clarified water is discharged separately, while solids are conveyed to the opposite end, achieving high dewatering efficiency, especially for biological sewage sludge.
Screw presses
The screw press consists of a draining basket with variably spaced side openings, inside which is a screw conveyor supported on one side by the geared motor and on the opposite side by a floating bearing. Cleaning of the basket is ensured by a rubber profile integral with the screw conveyor coils. At the end of the machineS is a back pressure cone driven by pneumatically actuated pistons. The machine is completely enclosed by a casing with four side inspection openings (two on each side). Compared to the centrifuge, the screw press usually has a lower yield but, working at much lower rotational speeds, is more suitable for abrasive sludge (typically from chemical-physical treatments) and difficult to dewater with centrifugation.
Complete plants
The supply of the machines is completed with all accessories such as: polyelectrolyte preparer, sludge handling pumps, hydraulic circuit, steelwork support structure, thickener tank, screw conveyor for distribution of the dewatered sludge into the tank, and electric control panel.
Here below some of works
Contact us to know complete reference list
2951755118
SLUDGE – DEHYDRATION
Supply and installation of a double sludge dewatering system consisting of a centrifuge (sludge from biological purification) and a screw press (sludge from chemical-physical purification). The machines were positioned, elevated, inside a newly built metal structure, which through a mobile screw discharges the sludge into the three containers below. The system has successfully and more efficiently replaced the pre-existing filter presses and belt presses (guaranteed dry percentage and reduced management costs).
Waste sector
54718
SLUDGE – DEHYDRATION
Supply and installation of the sludge dewatering system from biological purification with thickener, conditioning, screw press, metal structure, sludge distribution screw in box. The system has allowed a considerable increase in the achievement of the percentage of dryness in the mud and has substantially eliminated the ordinary management that required the existing filter press.
Textile industry
Contacts
Registered office: Via Enrico Fermi 32 – 24020 Scanzorosciate (BG)
Operational headquarters, warehouse and workshop: Via A. Moro 1 – 24020 Scanzorosciate (BG)
Cap. Soc. € 600.000,00 i.v.
R.I. BG, Cod. Fisc. e P.I. 02887960165
Cod. Univoco SUBM70N
REA 331280
info@fidiaeng.it
(+39) 035 659 4550