Our plants perform the purification of water following these operating steps:
Equalization: This stage is essential when it’s necessary to purify the water by keeping constant its flow.
Flocculation and sedimentation: With the flocculation the pollutants are transformed into settleable substances, or in the sludge flocs that, in a subsequent phase of decantation, are collected on the bottom of the settling tank. This operation is carried out with the addition of chemicals to destabilize the polluting particles. Before this stage the water is treated with a powder to retain most of the pollutants, to promote the flocculation and for a longer life of the active carbon filter installed at the output of the plant.
Sludge extraction: The sludge extracted from the plant are inserted in special filter bags or can be pressed to reduce their volume (to reduce the costs of disposal). The water that came out from the filter is sent again to the treatment plant.
Final Filtration: The filtration serves to remove particles of mud escaped from the sedimentation, or to restrain organic substances. The sludge particles which remain trapped in the filter will then be easily removed during the operations of filter backwash. The filtering station is constituted by a filter with quartz sand and a filter with activated carbon.