Odor treatment system

The invention discloses an odor treatment system which comprises a biological packed tower, a liquid storage pond, an air distributing space and a packing layer which are successively arranged from bottom to top, as well as an air inlet pipe arranged in the air distributing space, an exhaust pipe arranged on the biological packed tower and a drain pipe arranged in the bottom of the liquid storagepond, wherein an air inlet valve is arranged on the air inlet pipe, an exhaust valve is arranged on the exhaust pipeline, a pressurizing pump is arranged on the drain pipe, the packing is divided intoat least two layers which are mounted in a staggered manner, the upper pack is dense while the lower pack is loose, and a plurality of flow guide plates are arranged in the air distributing space todivide the packing layer into a plurality of regions from one side of the air inlet to one side of the exhaust port for guiding air flow distribution in the regions. The packing is mounted in the staggered manner, so that the p