Naldi Ecologia S.r.l. products

The treatment of sewage of civil origin by means of an "imhoff" type is very old and dates back to the last century, when the first septic tanks appeared. These in the past have found a great diffusion even on systems serving large communities; currently their use is limited to small settlements mainly rural or as pre-treatment to further purification stages such as percolator beds or biodisks.

The static separators of non-emulsified vegetable oils and fats from Naldi Ecologia were born with the aim of protecting the environment from an uncontrolled discharge of oily substances into the sewer system, in compliance with Annex V of Legislative Decree 152/06 and subsequent amendments and improvements the purifying yield in the presence of a biological purification.

NALDI Ecologia has designed and built de-oiling systems able to optimize the separation efficiency of non-emulsified mineral oils and fats from the water coming from yards, car parks, car washes and auto-breakers.
The separation of light oils occurs by gravity and thanks to the use of suitable oil-absorbing filters.

The oil separators of NALDI Ecologia were born with the aim of protecting the environment from an uncontrolled discharge of oily substances into sewers and surface bodies, in compliance with the parameters set out in Annex V of Legislative Decree 152/06 and subsequent amendments.

NALDI Ecoloiga series DVS -DOS biological sewage treatment plants are born for the purpose of treating urban waste water delivering in surface water courses or dispersing in the ground preserving the environment and public health. applications: hotels, restaurants, cinemas, offices, schools, cottages, colleges, retirement homes, hospitals, tourist centers, multi-purpose structures, campsites, boarding schools, sports centers, ect.

The NALDI Ecology biological sewage treatment plants of the DVS_pc and DOS_pc series were created to treat urban waste water which then delivered to surface water courses or to dispersion in the ground, preserving the environment and public health in full respect of the current current regulations regarding the reduction of environmental impact. es. applications: hotels, restaurants, cinemas, offices, schools, cottages, colleges, retirement homes, hospitals, tourist centers, multi-purpose structures, campsites, boarding schools, sports centers, ect.

The SBR system (sequential discontinuous reactor) consists of one or more parallel reactors, which provide for aeration, sedimentation, extraction of the effluent and sludge recirculation. Each reactor, after the filling phase, is conducted, by means of a PLC, in a (discontinuous) way for a predefined period and then the sewage, once clarified after the sedimentation phase, is discharged from the reactor. The reactor, moreover, allows all the basins of an activated sludge plant, including the sedimentation unit, to be united in a single tank, and therefore does not require any recirculation of the sludge.

NALDI Ecologia operates in the field of civil and industrial wastewater treatment since the end of the 80s. To successfully solve the important and ever more incumbent ecological problem of the purification of waste water produced by small residential areas, series of prefabricated modular plants, for the treatment of very small communities up to 50 Inhabitants. Every plant that is produced in the NALDI Division Ecology plant is a masterpiece of reliability, in which converge: the continuous technological updating of the means of production, the new technical solutions tested by the research and development through plants.

Chlorination is the most widely used method in Italy for the disinfection of water in general. Already in 1974, Rook, a chemist at the Rotterdam Water Supply Company in the Netherlands, highlighted the formation of organo-halogenated substances as a result of the chlorination process. These disinfection byproducts were called D-DBP (Disinfection-Disinfection By Products).