What is the purpose of pre-chlorination in the water treatment process? I - To remove organic matter. II - To adjust the pH for the next steps. II...
What is the purpose of pre-chlorination in the water treatment process?
I - To remove organic matter.
II - To adjust the pH for the next steps.
III - To add fluoride to the water.
IV - To kill microorganisms present in the water.
a) Only I and II are correct.
b) Only II and IV are correct.
c) Only III and IV are correct.
d) Only I, II, and IV are correct.
I - To remove organic matter.
II - To adjust the pH for the next steps.
III - To add fluoride to the water.
IV - To kill microorganisms present in the water.
a) Only I and II are correct.
b) Only II and IV are correct.
c) Only III and IV are correct.
d) Only I, II, and IV are correct.
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Ed 
A resposta correta é a alternativa d) A pré-cloração no processo de tratamento de água tem como objetivo remover matéria orgânica, ajustar o pH para as próximas etapas e matar microorganismos presentes na água. A adição de flúor não é uma etapa comum no processo de tratamento de água.
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