Abstract:
The combined coagulation-ozonation-hydrolysis acidification-DNBF-IRBAF process has been used for the advanced treatment of the secondary biochemical effluent from a pharmaceutical factory,and the influences of coagulant dosage,ozonation time,and HRT of every biochemical treatment unit on COD,chroma and TN removing effects have been investigated. The results show that when the COD of the influent is 360-380 mg/L,chroma 100-120 times,and TN 110-130 mg/L,better treatment effects are achieved under the following reactor conditions:FeCl3 dosage is 80 mg/L,ozone dosing rate 8.5 mg/min,ozonation time 40 min,and HRTs of hydrolysis acidification tank,DNBF and IRBAF reactor are 8 h,3 h,8 h,respectively,the effluent water quality could meet the First Level B requirements specified in the Discharge Standard for Urban Sewage Treatment Plants(GB 18918-2002).
Key words:
pharmaceutical wastewater,
coagulation,
ozonation,
biochemical method,
advanced treatment
摘要： 采用混凝-臭氧氧化-水解酸化-反硝化生物滤池-内循环曝气生物滤池组合工艺深度处理某制药企业二级生化出水，考察了混凝剂投加量、臭氧氧化时间、各生化处理单元水力停留时间对废水COD、色度、总氮去除效果的影响。结果表明：当进水COD为360~380 mg/L、色度为100~120倍、总氮为110~130 mg/L时，在氯化铁投加量80 mg/L，臭氧投加速率8.5 mg/min，臭氧氧化时间40 min，水解酸化池、反硝化滤池、内循环BAF反应器的水力停留时间分别为8、3、8 h的条件下，出水水质满足城镇污水处理厂一级B排放标准（GB 18918-2002）要求。
关键词:
制药废水,
混凝,
臭氧氧化,
生化法,
深度处理
CLC Number:
Zhou Yihui, Liu Dongfang, Meng Fansheng, Song Zongwu. Advanced treatment of secondary effluent of pharmaceutical wastewater by combined process coagulation-ozonation-biological method[J]. INDUSTRIAL WATER TREATMENT, 2017, 37(12): 38-42.
周义辉, 刘东方, 孟凡盛, 宋宗武. 混凝-臭氧-生化法组合工艺深度处理制药厂二级出水[J]. 工业水处理, 2017, 37(12): 38-42.