why is chlorine gas passed throgh treated sewage
Answers
Chlorine is harmful to our respiratory system, if you take in chlorine you won't be able to breath and usually die. Also if chlorine is not treated it will dissolve with the water in the atmosphere to form hydrochloric acid.
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1.It is effective in detoxifying the water.
2.It kills all the germs in water, quite fast.
3.It can used a bit in excess, later the surplus can be boiled off .
4. As its source, bleaching powder , etc, it is easy to handle, store, transport.
5. Cheap
6. Safe , if handled with care ! - no substitute which can come any where in these !!As we know, life w/o clean water is impossible.
Hence Cl2 has become an inseparable part of our life will remain so.
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