Physical deodorization primarily removes odors from waste disposal and transportation through ventilation and filtration, while chemical deodorization neutralizes and eliminates odors using chemicals.

The primary method of physical deodorization is through ventilation systems and filters. Firstly, in the design of the waste transfer station, a ventilation system is set up to achieve air flow by introducing fresh air and expelling polluted gases. This way, the air within the waste transfer station can be refreshed in a timely manner, reducing the persistence of unpleasant odors.