Method which is used for efficiently removing hardly degradable pollutants in water body and based on waste gas of pretreatment of rape straw

The invention provides a method which is used for efficiently removing hardly degradable pollutants in a water body and based on waste gas of pretreatment of rape straw. The method comprises the stepsof: collecting the waste gas produced through pretreatment of rape straw, introducing the waste gas into the water body hardly degradable pollutant-containing waste liquid which is put in a sealed container, and carrying out a degradation reaction at 30-80 DEG C. Through the method, an excellent removal effect on the common water body hardly degradable pollutants is achieved, the shortcoming of the requirement of the prior art for complex equipment is overcome, and the disadvantage that special modification treatment needs to be performed on raw materials in an existing solid-base treatment technology is avoided, so that an efficient degradation effect on the water-body hardly degradable pollutants is achieved, the technical purpose of waste control directly by another waste is achieved in a real sense, and organ