During the final stage, the water is disinfected - by the addition of chlorine, hydrogen peroxide and other chemicals and by running it past ultraviolet lights.

在最后一个步骤中，水经过氯、过氧化氢和其它化学品消毒，并且经过紫外线灯消毒。

youdao

Finally, refineries emit many gases like sulphur dioxide (SO2), nitrogen oxide (NO2), carbon dioxide, carbon monoxide, methane, dioxins, hydrogen fluoride, chlorine, benzene and others.

最后，炼油厂排放很多的气体，如二氧化硫(SO2)、二氧化氮(NO2)、二氧化碳、一氧化碳、甲烷、双环氧乙烷、氟化氢、氯、苯和其他气体。

youdao

Combing the characteristics of process of chlorine and hydrogen treatment and the influences on the subsequent handling, the main risk was analysed and the safety measures were put forward.

结合氯氢处理的工艺特点及其对后续工序的影响，对存在的主要风险进行分析并提出相应的安全措施。

youdao

And it also has two byproducts: chlorine and hydrogen.

FORBES: Insane Technology Watch: Making Petrol From Air

For example, two chemicals -- chlorine and hydrogen cyanide -- that were used with devastating effect as weapons in World War I are explicitly exempted from the CWC's prohibitions.

CENTERFORSECURITYPOLICY: A Noxious Arms Control Treaty