苏北三个乡镇污水厂冬季工业污水混入后的应急处理方案研究  

Study on the Emergency Treatment Plan of Three Township Sewage Plants after Mixing Industrial Sewage

作　　者：孙捷 张汝涛 孔繁杰 唐佳佳 Sun Jie;Zhang Rutao;Kong Fanjie;Tang Jiajia(Suzhou Capital Greinworth Environmental Protection Technology Co.,Ltd.,Suzhou 215126;School of Chemistry and Chemical Engineering,Southeast University,Nanjing 211189;Beijing Capital Co.,Ltd.,Beijing 100044,China)

机构地区：[1]苏州首创嘉净环保科技股份有限公司,江苏苏州215126 [2]东南大学化学化工学院,江苏南京211189 [3]北京首创股份有限公司,北京100044

出　　处：《广东化工》2021年第7期111-114,共4页Guangdong Chemical Industry

摘　　要：选取苏北某乡镇三个典型污水处理厂,考察不同浓度臭氧处理对不同进水水质的影响,并结合BOD_(5)、COD、氨氮、硝态氮、总氮、OUR、荧光强度指标对臭氧氧化前后厂区进水水质变化进行分析以此达到强化厂区进水水质、提高污水处理效果。研究结果表明,20 mg/L臭氧处理可以提高各厂区进水的可生化性及削减毒性,但效果随臭氧浓度逐渐增至50、80、110 mg/L时对于A、B厂区减弱,对于C厂区则增强;依据氮形态分析可以看出进水水质经过臭氧处理后氨氮及总氮有所降低、硝态氮升高;依据荧光分析可以看出臭氧处理可以降低进水水质中相关污染物浓度;在进水经臭氧预处理后,污水处理厂出水最终满足乡镇污水厂执行的工业排放一级A标准。上述研究可以为通过臭氧处理进行污染物源头削减以强化污水处理效果提供参考,并为混入工业水的生活污水厂开展应急处理提供可行方案。Three typical sewage treatment plants in a town in northern Jiangsu were selected to investigate the effects of different concentrations of ozone treatment on different influent water quality, and combined with BOD_(5), COD, ammonia nitrogen, nitrate nitrogen, total nitrogen, OUR and the fluorescence intensity indicators to analysis the changes of the influent water quality of the plant before and after ozone oxidation, in order to strengthen the influent water quality of the plant and improve the effect of sewage treatment. The research results showed that 20 mg/L ozone treatment can increase the biodegradability and reduce toxicity of the plant inflow, however, as the ozone concentration gradually increased to 50, 80, and 110 mg/L, it was weake ned for the A and B plants, and enhanced for the C plant;according to nitrogen speciation analysis, it can be seen that after ozone treatment, ammonia nitrogen and total nitrogen decreased, and nitrate nitrogen increased;according to fluorescence analysis, it can be seen that ozone treatment can reduce the concentration of related pollutants in the influent water quality;After pretreatment by ozone, effluent of sewage plants can meet the first A class standard of sewage plant effluent. The above rese arch can provide a certain reference for reducing the source of pollutants through ozone treatment to enhance the effect of sewage treatment, and provide feasible solutions for emergency treatment of domestic sewage plants mixed with industrial water.

关 键 词：臭氧氧化 源头削减 可生化性 氮形态 荧光分析 

分 类 号：TQ[化学工程]