Renovation design of ventilation and deodorization system in sludge dehydration room of an underground sewage treatment plant

By analysing the reasons for the poor ventilation and deodorization effect of the sludge dehydration room of an underground sewage treatment plant in the south and the characteristics of the odor source, the ventilation and deodorization system renovation design is carried out according to the implementation conditions. The renovation design adopts the ion deodorization technology, to deliver the outdoor air passing through the ion generators to the sludge dehydration room, and at the same time to collect the odor in the room and then discharge it to the outside after treated by the ion method. The air pollutants are detected before and after the transformation of the room, and the results show that the transformation scheme combined with the ion deodorization technology can effectively control the indoor pollutant concentration, reduce the odor concentration in the sludge dehydration room, and solve the odor control problem in the room to a certain extent.