| 摘要 |
<p>Method and apparatus for elimination of odour gases, such as nitrogenous and sulphurous odour compounds produced as a decomposition product of organic waste. According to the invention odour gases are eliminated in an absorption reactor (7) in such a manner that in a porous honeycomb (10) located in the absorption reactor (7) the binder solution (19) of the odour compounds is by means of a circulation pump (2) and a circulation circuit (3) brought in contact with the malodorous air current moistened to 100 % relative humidity. The binder solution (19) is spread in small drops on top of the honeycomb, from which the binder solution flows downwards through the honeycomb. The odour gases are conveyed through the honeycomb counter-current, i.e. upwards from a lower level. The nitrogenous and sulphurous odour compoounds in the odour gases bind themselves chemically to the binder solution which flows further to a circulation container (11). The saturated binder solution is conveyed to a sewer, whereafter the circulation container is re-filled with an active binder solution from a storage container (18). The apparatus for elimination of odour is activated for example by a flow switch (17) or an odour sensor (21) coupled to the outlet pipe (8) of the absorption reactor.</p> |
