Method for treating air containing odoriferous substances

DETAILED DESCRIPTION It is an object of the present invention to provide a method of treating air containing odoriferous substances which does not have the above described disadvantages associated with comparable prior art methods.
It is another object of the present invention to provide a method of the type under discussion which is simple and economical to use.
It is still another object of the present invention to provide a method of treating air which requires a small initial capital expense.
It is yet another object of the present invention to provide a method of the type suggested in the other objects which utilizes ozone to oxidize odoriferous substances in air at one treatment zone, and converting the remaining ozone in the mixture to stable oxygen molecules at a second treatment zone by passage of the mixture through a bed of activated carbon.
It is a further object of the present invention to provide a method as described in the last object which further maintains the air to be treated in a constant flow through a tortuous path to assure contact between the ozone and the air to be treated for a predetermined period of time to assure oxidation of a substantial portion of the odoriferous substances prior to passage of the resulting mixture through the bed of activated carbon.
It is still a further object of the present invention to provide an apparatus which can carry out the method suggested in the above objects.
To achieve the above objects, as well as others which will become apparent hereafter, a method of treating air containing odoriferous substances in accordance with the present invention comprises the steps of introducing ozone into contaminated air at a first treatment zone and exposing the contaminated air to the ozone for a predetermined period of time.
In this manner, the ozone is manintained in contact with the odoriferous substances for a sufficient time to oxidize a substantial portion of the latter.
The ozone remaining in the mixture not utilized in the oxidation process is converted into stable oxygen molecules at a second treatment zone