Place the steps of the water purification process in order.
A) Release into a water reservoir, aeration, filtration and settling, chemical disinfection
B) Aeration, filtration and settling, chemical disinfection, release into a water reservoir
C) Chemical disinfection, aeration, filtration and settling, release into a water reservoir
D) Filtration and settling, chemical disinfection, aeration, release into a water reservoir
Correct Answer:
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Q1: Potable water must be _.
A)free of pathogens
B)
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Q6: Indicator bacteria for contaminated water are _.
A)coliforms
B)
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Q8: The first step in sewage treatment is
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A)using
Q15: The mass, controlled culture of microbes to
Q17: The most prominent water-borne pathogens of recent
Q20: Primary sewage treatment includes _.
A)skimming
B)sludge digesting
C)chlorination
D)filtration
E)aeration
Q26: Which of the following is not a
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