摘要
以山东省某污水厂快滤池出水为催化臭氧氧化工艺进水,考察了臭氧投加量、臭氧浓度、接触反应时间等因素对催化臭氧氧化去除COD的影响,并从反应动力学和臭氧利用率两方面与相同工艺条件下的单独臭氧氧化技术进行了对比。结果表明,在一定范围内,增加臭氧投加量、提高臭氧浓度、延长反应接触时间都可以有效提高COD去除率;与单独臭氧氧化工艺相比,催化臭氧氧化具有更高的反应速率和臭氧利用率以及更低的单位质量COD消耗臭氧量,在处理市政污水中有着广阔的应用前景。
The application of catalytic ozonation in the treatment of biochemical effluent of municipal wastewater treatment plant was investigated in a pilot scale test. Factors including ozone dosage, ozone concentration and reaction time were investigated. In the meantime, catalytic ozonation was compared with the sole ozonation regarding the reaction kinetics and ozone utilization efficiency under the same condition, so as to confirm that catalytic ozonation had faster reaction speed and higher ozone utilization efficiency. Results indicated that enhancing ozone concentration and prolonging reaction time could improve the COD removal efficiency to a certain extent. Compared to the sole ozonation, catalytic ozonation had faster reaction rate, higher ozone utilization efficiency, and lower ozone consumption per unit mass of COD removal. Catalytic ozonation demonstrates extensive application potentials in the treatment of municipal wastewater.
出处
《中国给水排水》
CAS
CSCD
北大核心
2018年第1期74-76,81,共4页
China Water & Wastewater
关键词
生化出水
催化臭氧氧化
深度处理
反应速率
臭氧利用率
biochemical effluent
catalytic ozonation
advanced treatment
reaction speed
ozone utilization efficiency
