Abstract: While the UV lamp (400W) was lamp-house and acetic acid was an object of research, the photodegradation reaction of 500 mL of 8 mmol/L acetic acid was investigated under the airflow rate of 0.8 L/min and temperature of (35±2)℃ by UV/H₂O₂ methods. All kinds of influencing factors were investigated. According to the results, the optimal H₂O₂ effect was obtained when the amount of H₂O₂ is 15 mmol/L, and the initial pH of reaction solution was 3.4. At this condition, the disposal rates of acetic acid, TOC and COD in the reaction solution respectively reached 98%, 98% and 97% within 240 min, acetic acid was completely mineralized in the reaction system. The UV/H₂O₂ method was also very well for the degradation of the real furfural wastewater had been proved by the experiments.

Key words: UV/H₂O₂, degradation, acetic acid, furfural wastewater