FIRST RAIN PLANTS DIFFERENT TYPES

FIRST RAIN PLANTS DIFFERENT TYPES

TANK CAPACITY

from 940 liters up to 40,000 liters

ACCESSORIES

Extension PRO X 400/PRO X 600 – Telescopic manhole CHI Y 400-600/CHI Y 600-800 – Fiscal well POF O 125 – Probe Liv. Oil SLO Z 003 – Probe Liv. ATEX SLA Z ATEX oil

VERSION

discharge in sub irrigation or on the ground

VIDEO

Video

Impianti Di Prima Pioggia
Impianti Di Prima Pioggia Impianti Di Prima Pioggia In Polietilene

DESCRIPTION

DESCRIPTION:

First rain systems are systems for treating rainwater coming from car parks, car washes, streets and yards or distributors. Rainwater is separated by a spillway, and first rain water is collected in an underground or outdoor storage basin. From here they are sent back to the treatment unit, before unloading at the final destination.

In the first phase, the water arrives in a spillway with a weir, which the second rainfall waters touch when the water exceeds the threshold level. The water from the second rain is immediately sent to the final destination (except for different regional regulations), while the water from the first rain is transferred along the treatment plant.

The rainwater is then first collected in a storage tank, which can be underground or external. The basin must have a sufficient volume to contain the first 5mm of water that falls on the draining surface (4mm, however, for the Abruzzo region).

From the accumulation tank, a timed submersible electric pump relaunches the first rain water to the coalescence oil separator. The electric pump is activated 48-96 hours after the meteor event, so that the sedimentation in the first rain tank best separates the potentially polluting solid residues.

The water treated in this way can then reach the final destination and be discharged into surface water (T3). Or, they can undergo further treatments in order to be discharged to the ground (T4): in this case, the water first passes into a tank equipped with oil-absorbent systems, to respect the SST and total hydrocarbon parameters necessary for discharge into T4.

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