【摘要】 目的　了解生物滤池结合臭氧消毒技术对生活污水的净化效果。方法　于污水处理前、二级生物滤池处理后及臭氧消毒后分别取水样测定悬浮物、pH、CODcr、BOD5、氨氮及粪大肠菌群 ,观察不同处理方法处理生活污水后上述指标浓度的变化情况。结果　生活污水经二级生物滤池处理后 ,上述指标的浓度有了非常明显的下降。远低于污水排放的一级标准。经臭氧消毒处理后 ,污水中的粪大肠菌群也低于医院污水排放标准。结论　使用生物处理技术 (包括臭氧消毒技术 )对生活污水处理有很好的净化效果更多还原

【Abstract】 Objective To learn effect of purification of wastewater by biological filtration and ozone disinfection.Methods The samples were respecttively taken before and after treated by two-stage biological filtration and ozone disinfection.And the sludge suspended particles,PH,CODcr,BOD 5,ammonia,N and Escherichia coli in faecus were determined.Results The oncentr-ations of the indexes as the above reduced significently after wastewater was treated by two- stage biological filtration,and were lower than those of the first class standards made by the national environment buearu,by which two class factories of city and town drain wastewater.The concentration of Escherichia coli in wastewater was lower than that of wastewater draining standard of hospitals.Conclusion It is effective to treat wastewater by the biological filtration and ozone disinfection.更多还原