In order to develop an high-efficient and energy-saving treatment method for industrial benzene waste gases,the treatment effect for toluene by absorption—Fenton oxidation / photo-catalytic oxidation method was studied respectively. The results showed that the optimal toluene inlet velocity was 0. 2 L / min and the absorption time was 30 min in experiment conditions; The best absorbent of 4% BDO for toluene were determined,with which toluene concentration in absorption liquid reached 43. 87 mg / L; The opti...