The present invention relates to facilities for removing complex malodor which includes a neutralization module and a neutral module. The neutralization module dissolves, in water, and removes a portion of malodor-causing materials of malodor gas inserted from equipment generating malodor, includes an acid neutralization module for inserting an alkali material from the outside to neutralize an acid malodor-causing material among the malodor-causing materials and removing the acid malodor-causing material and an alkali neutralization module for inserting an acid material from the outside to neutralize an alkali malodor-causing material among the malodor-causing materials and removing the alkali malodor-causing material, connects the acid neutralization module to the alkali neutralization module to correspond to malodor gas, and operates the acid neutralization module and the alkali neutralization module. The neutral module dissolves, in water, and removes the rest of the malodor-causing materials inserted from the neutralization module, includes an oxidation neutral module for inserting an oxidant from the outside, oxidizing the malodor-causing materials, and neutralizing the malodor-causing materials and a reducing neutral module for inserting a reducing agent from the outside to reduce the malodor-causing materials and neutralizing the malodor-casing materials, connects the oxidation neutral module to the reduction neutral module to correspond to the malodor gas, and operates the oxidation neutral module and the reducing neutral module. According to the present invention, the facilities for removing complex malodor can effectively remove various and complex malodor-causing materials generated from a malodor source through a plurality of malodor processing units containing treatment solutions with various ingredients.본 발명은, 악취발생설비로부터 유입되는 악취가스의 악취원인물질 중 일부를 액상의 물에 용해시켜 제거하되, 악취원인물질 중 산성의 악취원인물질을 중화하도록 외부로부터 알칼리물질을 투입하여 제거하는 산성중화모듈과, 악취원인물질 중 알칼리성의 악취원인물질을 중화하도록 외부
