Calculate the chlorine dosage, mg/L, from the following data:
Plant flow: 22,500,000 gallons per day
Chlorine feed rate: 1,600 lbs/day
Chlorine purity: 100%
Water pH: 7.5
Which of the following will cause chlorine demand?
Hydrogen sulfide (H2S)
What is the correct equation for chlorine dosage?
Chlorine demand + chlorine residual = chlorine dosage
What is the gaseous chlorine feed rate, lbs/day, of the surface water plant that treats 45 MGD with a dosage of 18 mg/L?
To avoid icing, or freezing of the chlorine in the supply lines, the recommended maximum draw-off rate of chlorine gas from a 150 pound cylinder is what?
What process is required by the SWTR for all surface water supply systems?
The addition of free chlorine to water that contains dissolved organic material could result in the formation of what potentially carcinogenic compounds?
This gas is non-flammable, non-explosive, 2.5 times heavier than air with a liquid to gas expansion ratio of 450:1?
When gaseous chlorine is injected into a water supply, what two acids are formed?
Hypochlorous and hydrochloric acids
How many parts of chlorine and ammonia will create mono-chloramine?
Three parts of chlorine and one part of ammonia