The plant is also equipped with a recovery system for sand , which will be reused in the productive cycle , reducing wastage, completing a virtuous cycle , which will be in line with the most sophisticated and reliable green technology currently available.This plant In particular is equipped with systems, which continuously monitor the flow of air to be treated within the purification process ; the plant is operated by PLC interface with touch screen ,which will continually modulate the air aspiration system, so as to collect the sand dust in a bag house with a self cleaning automation ,with the contemporary operation of painting ,which will be treated in another process , the pollutants will be treated by means of a dry filter in order to cut down the particles ,after which the flow will pass into a special carbon filter , where it will trap the organic substances , with the purpose of reaching the lowest possible level of emission.