Question: I need the answer as soon as possible 5. Explain how infestations are controlled in GAC beds. 6. What factors affect disinfection? Explain how one

I need the answer as soon as possible

5. Explain how infestations are controlled in GAC beds. 6. What factors affect disinfection? Explain how one of the factors identified may affect disinfection. 7. A water sample taken from Volta River has alkalinity of 185 mg/L as CaCO3. The Ca2+ concentration is 133 mg/L as ion, and the Mg2+ concentration is 65 mg/L as the ion. The pH is 8.1. a. What is the total, carbonate and non-carbonate hardness? b. Draw the hardness bar chart for the composition of the river

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