PROBLEM TO BE SOLVED: To provide a deodorizing device for a feed producing facility capable of removing smell generated when raw garbage is subjected to decompressed oil heat dewatering to change into feed at low cost while generating no scale.SOLUTION: A deodorizing device for a feed producing facility of the present invention removes water from food waste comprising a garbage with a decompressed oil heat drying device 2 to produce feed. Exhaust gas exhausted from the decompressed oil heat drying device 2 comprises 1 or two types of odorous components selected from aldehydes, hydrogen sulfide and methyl sulfide and oil component. In a case where ammonia is contained, concentration of the ammonia is 2 mg/L or less and in a case where trimethylamine is contained, concentration of the trimethylamine is 0.1 mg/L or less. The feed producing facility comprises degradation processing tower 3 into which exhaust gas is introduced and in which odorous component in the exhaust gas is contacted to alkali oxidation agent in a gas-solution contacting manner to degrade the odorous component with oxidation.SELECTED DRAWING: Figure 1【課題】生ゴミを減圧油温脱水して飼料化する際に発生する臭気を、スケールを発生することなく、低コストで脱臭できる飼料製造施設の脱臭装置を提供すること。【解決手段】本発明の飼料製造施設の脱臭装置は、生ごみを含む食品廃棄物を、減圧油温乾燥装置２を用いて脱水処理して、飼料を製造する飼料製造施設において、減圧油温乾燥装置２から排出される排ガスは、アルデヒド類、硫化水素及び硫化メチルから選ばれる１又は２種以上の臭気成分と、油成分とを少なくとも含み、アンモニアを含む場合には該アンモニアの濃度が２ｍｇ/Ｌ以下であり、且つトリメチルアミンを含む場合には該トリメチルアミンの濃度が０．１ｍｇ／Ｌ以下であり、該排ガスを導入して、該排ガス中の臭気成分にアルカリ性酸化剤溶液を気液接触させて該臭気成分を酸化分解する分解処理塔３を備える。【選択図】図１
