摘要
根据某炼油废水二级生化出水的水质水量特点,采用臭氧催化氧化-曝气生物滤池对炼油废水生化出水进行了试验研究。考察了臭氧投加量、p H对臭氧催化氧化单元COD去除效果的影响,确定了该单元最佳臭氧投加量和最适宜pH,同时考察了pH对曝气生物滤池单元COD和NH_3-N去除效果的影响。结果显示,系统控制进水COD/O_3比=2∶1,pH在7~8,COD在150~250 mg/L,NH_3-N在21.6~59.9 mg/L的水质条件下,该系统不但能够稳定去除COD,且能够高效地去除NH_3-N,COD平均出水浓度为44.1 mg/L,NH_3-N平均出水浓度为2.07 mg/L,出水水质指标完全达到《污水综合排放标准》(GB 8978—1996)一级标准。
According to the characteristics of water quality and quantity of two stage biochemical effluent of a refinery wastewater,an experimental study on the treatment of refinery wastewater by ozone catalytic oxidation and biological aerated filter is carried out. The effects of ozone dosage and p H on the removal efficiency of COD in catalytic oxidation unit are investigated. The optimum ozone dosage and p H are determined. Besides that,the effects of p H on the removal efficiency of COD and NH3-N in the biological aerated filter are investigated. The results show that the system can not only remove the COD,but also can remove the NH3-N effectively under the following conditions： 2∶ 1 ratio of the influent COD/O3,7-8 of p H,150-250 mg/L of COD and 21. 6-59. 9 mg/L of NH3-N. The average effluent concentration of COD and NH3-N are 44. 1 mg/Land 2. 07 mg/L,respectively. The water quality index of the effluent can completely meet the standard of Comprehensive Discharge Standard（ 8978—1996 GB）.
出处
《现代化工》
CAS
CSCD
北大核心
2017年第4期152-155,共4页
Modern Chemical Industry
基金
江西省自然科学基金(20151BAB207009)
江西省科技支撑计划项目(20142BDH80021)
华东交通大学博士科研启动基金(26441028)
