Sand filters
Rapid sand filtration is used for the final treatment of potable, industrial, and wastewater, producing a clear effluent with low organic content suitable for reuse. The filters consist of layers of granular material through which water passes, and filtration operates in cyclic discontinuous processes. When the filter reaches turbidity or pressure limits, it is backwashed with water and air, removing accumulated particles and restoring optimal filtration performance.
Activated carbon filters
Activated carbon filters are used for the thorough abatement of organic substances and micro-pollutants such as insecticides, pesticides, heavy metals and various toxic substances that manage to break through the barrier of chemical and biological processes. The purifying effect of activated carbon is due to surface attraction phenomena caused by the huge active surface area of the carbon mass, which is able to capture pollutant particles by adsorption.
We use powdered activated carbon in small and medium-sized plants as an auxiliary treatment to improve the efficiency of chemical and biological treatments. For example, the ability of biological processes to remove dissolved organic substances can be combined with the ability of activated carbon to adsorb non-biodegradable colloidal organic substances.
Powdered activated carbon is suitable for short, discontinuous treatments or for strong purification. For other continuous or high capacity plants, granular activated carbon is used, which is less effective but more economical, recoverable and easily regenerated.

Here below some of works
Contact us to know complete reference list

59818
TERTIARY SAND AND ACTIVATED CARBON
Supply and installation of an activated carbon filtration system for the removal of tetrachlorethylene from contaminated groundwater
Residential area reclamation sector
29017
TERTIARY SAND AND ACTIVATED CARBON
Supply and installation of a sand and activated carbon filtration system for the removal of hydrocarbons from contaminated groundwater
Residential area reclamation sector


05903
TERTIARY SAND AND ACTIVATED CARBON
Supply and installation of an activated carbon filtering station for well water for drinking use
Potabilization sector
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
