Patent ID: 6358729
Filing Date: 2002-03-19
Classification: B01D,Y02A

Abstract:
A compact plant for the depuration treatment of air, polluted by odorous substances, characterised by comprising a unitary framework or housing, containing the following sections:(a) a prescrubbing section, in which the air to be treated is brought to a desired content of water, the scrubbing water being possibly added with chemical additives suitable to adjust the pH of the water as a function of the polluting substances contained in the air, so that the scrubbing takes place under conditions close to neutrality; (b) a biological filter consisting of a bed of macroporous inert particles containing a population of micro-organisms capable of biologically destroying the chemical substances contained in the air passing through the filter, and (c) a postscrubbing section comprising a scrubbing chamber wherein the air undergoes a final washing with water under oxidising conditions, the water being added with compounds suitable to promote such an oxidising effect, the air flow through the plant being caused by a drawing or blowing apparatus placed downstream of the postscrubbing section.