紫外线-次氯酸钠联合消毒工艺对生化需氧量测定的影响研究  

Influence of UV-sodium Hypochlorite Combined Disinfection Process on Biochemical Oxygen Demand Determination

作　　者：王泰 WANG Tai(Tianjin Binhai New Area Huantang Sewage Treatment Co.,Ltd.,Tianjin 300454,China)

机构地区：[1]天津滨海新区环塘污水处理有限公司,天津300454

出　　处：《天津科技》2018年第7期23-25,共3页Tianjin Science & Technology

摘　　要：紫外线及次氯酸钠被广泛应用于城镇污水处理厂的出水消毒工艺单元。通过试验,比较紫外线及紫外线-次氯酸钠联合方式的消毒效果,研究两种消毒工艺对生化需氧量项目在不同国标分析方法下的数据表现。试验表明,采用的紫外线-次氯酸钠联合消毒工艺,对出水粪大肠菌群确有更加彻底的去除效果;且其中游离余氯的存在,可以更加有效地抑制因水样留存条件或检测时间等因素影响所可能引发的菌体复活。Ultraviolet and sodium hypochlorite are widely used in the effluent disinfection process unit of urban sewage treatment plants.The disinfection effects of ultraviolet and ultraviolet-sodium hypochlorite combined methods were compared by tests and the data performance of the two biochemical oxygen demand projects under different national standard analysis methods was studied.The tests showed that the UV-sodium Hypochlorite Combined Disinfection Process has a more thorough removal effect on fecal coliform in effluent.The existence of free chlorine residual enables the effective inhibition of resurgence of strains caused by water sample reserve conditions or testing time.

关 键 词：紫外线 次氯酸钠 消毒 生化需氧量 

分 类 号：TU991.25[建筑科学—市政工程]