Method for treating waste sulfuric acid containing organic matter

The invention discloses a method for treating a waste sulfuric acid containing an organic matter. The method is characterized in that the waste sulfuric acid is taken as the catalyst, hydrogen peroxide is taken as an oxidizing agent, the oxidizing agent in the waste sulfuric acid is auto-catalyzed and oxidized, the steps are as follows: adding the hydrogen peroxide into the waste sulfuric acid containing the organic matter at certain proportion at certain flow under the stirring condition; heating and raising the temperature to 100-130 DEG C, preferentially 110-120 DEG C, keeping the constanttemperature for 5-80 minutes, preferentially 10-60 minutes, and preliminarily catalyzing and oxidizing the organic matter; heating for raising the temperature to 140-180 DEG C, preferentially 150-160DEG C, keeping the constant temperature for 5-80 minutes, preferentially 10-60 minutes, and thoroughly catalyzing and oxidizing the organic matter; evaporating and concentrating the treated sulfuric acid; condensing and recycl