Hold an open bottle of ? % ammonia hydroxide under a suspected chlorine leak.
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10
Every water sample is tested for waterborne diseases
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false
list
The well vent is a vacuum breaker allowing the casing to breathe as water levels
change when the pump?
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cycles
Small water systems often use ? to disinfect their water supply.
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hypochlorinators
Ozone is made of ? oxygen atoms instead of two
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3
Gas chlorinators use a rotameter to meter chlorine in ? or grams/hr.
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, lbs/day
list
Very low turbidity waters where turbidity is of a colloidal nature , are difficult to
coagulate. Very finely suspended solids (turbidity) will require an increase or a
decrease in coagulant dosages?
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increase
Stratified reservoirs have problems with algae, iron and manganese, and?
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hydrogen sulfide
What is the longest running river in Texas?
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Rio Grande
Common coagulating chemicals are alum, ferrous sulfate, and ferric chloride. Lime or
soda ash raise or lower the pH and what is used to enhance the coagulation and
flocculation?
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polymers (calgon)
list
If used in public drinking water, bleach must be NSF approved. What does NSF stand
for?
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National Sanitation Foundation
Deep reservoirs become stratified by temperature differences where cold water is
trapped below?
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warmer water
After the floc forms the water flows into a?
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sedimentation basin.
In coagulation and flocculation, first chemicals are mixed with water in a rapid mix
zone. The chemicals cause particles to coagulate and to form?
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10
Every water sample is tested for waterborne diseases
, Give this one a try later!
false
list
The well vent is a vacuum breaker allowing the casing to breathe as water levels
change when the pump?
Give this one a try later!
cycles
Small water systems often use ? to disinfect their water supply.
Give this one a try later!
hypochlorinators
Ozone is made of ? oxygen atoms instead of two
Give this one a try later!
3
Gas chlorinators use a rotameter to meter chlorine in ? or grams/hr.
Give this one a try later!
, lbs/day
list
Very low turbidity waters where turbidity is of a colloidal nature , are difficult to
coagulate. Very finely suspended solids (turbidity) will require an increase or a
decrease in coagulant dosages?
Give this one a try later!
increase
Stratified reservoirs have problems with algae, iron and manganese, and?
Give this one a try later!
hydrogen sulfide
What is the longest running river in Texas?
Give this one a try later!
Rio Grande
Common coagulating chemicals are alum, ferrous sulfate, and ferric chloride. Lime or
soda ash raise or lower the pH and what is used to enhance the coagulation and
flocculation?
, Give this one a try later!
polymers (calgon)
list
If used in public drinking water, bleach must be NSF approved. What does NSF stand
for?
Give this one a try later!
National Sanitation Foundation
Deep reservoirs become stratified by temperature differences where cold water is
trapped below?
Give this one a try later!
warmer water
After the floc forms the water flows into a?
Give this one a try later!
sedimentation basin.
In coagulation and flocculation, first chemicals are mixed with water in a rapid mix
zone. The chemicals cause particles to coagulate and to form?
