摘要
为了开发高效快速的污水深度处理工艺及设备,本研究对单一O3,O3/UV,O3/H_2O23种高级氧化工艺进行筛选和参数优化,从经济效益及反应效率的角度,O3/UV工艺较佳。选取O3/UV与曝气生物滤池(BAF)组合工艺对工业园区污水厂生化尾水进行处理,考察了臭氧投加量、臭氧接触时间、紫外灯功率等影响因素。结果表明,在臭氧投加量为15mg·L^(-1),臭氧接触时间4 min,紫外灯功率960 W,BAF水力负荷0.51 m·s-1,气水比3∶1的条件下,出水达到城镇污水厂一级A排放标准。
Aiming to improve the efficiency of advanced wastewater treatment processes and develop associated equipment,this study comprehensively investigates the performances of select advanced oxidation processes including O_3,O_3/ UV,and O_3/ H_2O_2 along with the optimization of their parameters. Based on the assessment,O_3/ UV outperformed the other two processes in a cost-effective manner. Combining O_3/ UV with a biological aerated filter（ BAF） was proposed to treat the biochemical tailwater from a wastewater treatment plant in an industrial park. The influences from different external factors were studied,including O_3 dosage,O_3contact time,and UV lamp power. The results show that with a O_3 dosage of 15 mg·L^（-1）,O_3 contact time of 4 min,UV lamp power of 960 W,BAF hydraulic load of 0. 51 m·s- 1,and gas-water ratio of 3 ∶ 1,the effluent met the Grade I discharge standard for pollutants from municipal wastewater treatment plants.
出处
《环境工程学报》
CAS
CSCD
北大核心
2016年第8期3993-3998,共6页
Chinese Journal of Environmental Engineering
基金
北京市自然科学基金与北京市科学技术研究院联合资助项目(L140011)
国家水体污染控制与治理科技重大专项(2012ZX07205-002)
