Principle: the smell of certain substances soluble in the characteristics of the water, the odor components directly in contact with water, and dissolved in water to deodorization purpose. Scope of application: water soluble, there is the organization of the source of the odor gas. Advantages: the process is simple, convenient management, low cost of equipment operation to produce two pollution, need to deal with the washing liquid. Disadvantages: low purification efficiency, should be combined with other technologies, for the treatment of thiol, fatty acids, such as poor treatment.