In the process of water purification is essential l'utilizzo di un apparecchio a letto di fango chiamato Pulsator, che l'Anconella sfrutta in 4 unità. Esso permette al fango di avere una massa in continua espansione attraversata in modo regolare, dall'alto verso il basso, dall'acqua.
Grazie alle caratteristiche di questo apparecchio, che viene usato in presenza di precipitati fragili che, altrimenti, a causa di un'agitazione più violenta, verrebbero rotti, l'acqua può avere una maggiore velocità ascensionale.
STRUTTURA DEL PULSATOR
the base of the basin has a flat bottom, in which raw water is fed through a series of tubes. The water must be treated uniformly across the surface of the implant. There are also, higher up, other tubes, which have the function of collecting water uniformly praised, not only avoids the formation of rate of climb in distinct areas of the unit. At the center is instead present a bell when you enter the turbidity currents to be treated. Through a compressor the air is sucked into it, and when the water is three feet above the water level of the decanter, it opens a valve that restoring the atmospheric pressure, allowing water to pass into the area of \u200b\u200bthe decanter. The drum empties and fills in 5 seconds in 15/20. Thus is formed a compact and homogeneous mud bed in the lower part of the decanter.
As the sludge accumulates in the water, the mass of the bed of mud increases regularly, until it is discharged into specific areas of the decanter in the shape of a sloping pit, where the sludge is concentrated . It is here that, through automatic valves shall be made on the drains, which, by concentrating only on excess mud, do not lower the concentration of the sludge from the decanter .
TREATMENT OF SLUDGE
in this process are treated by drinking the water discarded, namely those from chiarifelocculazione and that of washing facilities. These are pollutants and can not be eliminated because too: this is why you need a crucial but expensive system.
It is the filter-pressing.
FILTER-PRESSING
is a process of 1.5 to 6 hours , which takes place through a system consisting of wiping cloths, on which the mud is forced to be treated, after being pressured by two plates, so that pass only liquid substances, while still solid on the cloths and are then expelled with the plates.
Later, they are cleared for the procedure next.
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