【摘要】 采用催化吸收塔-生物滴滤塔联合工艺处理挥发性有机废气(VOCs)。催化吸收塔利用电解臭氧发生器产生臭氧,经过催化磁化器的催化后,能够有效地氧化部分有机废气。催化吸收塔净化后的废气进入生物滴滤塔进一步处理。吸收塔的臭氧量和进气浓度与生物塔的喷淋量和pH值对VOCs去除率的研究表明,当臭氧量为12.8g/h,喷淋量为2m3/h,进气中ρ(VOCs)=200~500mg/m3,pH=6~7,VOCs去除率最高为96.6%。对单一生物法处理工艺的处理效率与联合工艺的处理效率进行对比,发现联合工艺比单一的生物塔工艺具有更好的VOCs去除效果。更多还原

【Abstract】 Volatile organic waste gas(VOCs)was treated by a union process of the bio-trickling filter combined with a catalytic absorption tower.The ozone was produced by the electrolysis ozonizer in catalytic absorption tower.After the catalysis of the catalytic magnetizer,some organic waste gas could be effectively oxidized.Then,the waste gas was further treated by the biological trickle filter after the purification of the catalytic absorption tower.The removal rate of VOCs was studied by adjusting amount of ozone and the intake concentration of the VOCs in the absorption tower and the spray amount and pH value of the biological tower.The results showed that when the ozone module was 12.8 g/h,the spray amount was 2 m3/h,inlet concentration range was 200 to 500 mg/m3 and the optimum pH range was 6 to 7,the highest VOCs removal rate could reach to 96.6%.It was found that the combined process had better VOCs removal efficiency than the single biological tower process after the comparison of the treatment efficiency of the single biological process and the combined process.更多还原