Water Purification UPDATED ACTUAL
Exam Questions and CORRECT Answers
Water - CORRECT ANSWER- ✔✔The most important potential common source of
infectious disease (i.e., Cholera, Shigellosis, Typhoid fever, etc); Can also be a source for
chemically induced intoxications
Public health - CORRECT ANSWER- ✔✔Ensuring water purity is essential for _______
Microorganisms - CORRECT ANSWER- ✔✔Treatment and purification schemes use _____
to identify, remove and degrade pollutants
Wastewater - CORRECT ANSWER- ✔✔Domestic sewage or liquid industrial waste
Wastewater treatment - CORRECT ANSWER- ✔✔Relies on industrial scale use of microbes
for bioconversion; Following treatment, the effluent waters suitable for release into surface
waters, release to drinking water purification facilities, NOT for drinking water.
Effluent water - CORRECT ANSWER- ✔✔Discharged treated wastewater
Sewage- Wastewater treatment - CORRECT ANSWER- ✔✔Consists of a number of steps
that are spatial separated; Its goal is to reduce organic and inorganic material in wastewater to
a level that no longer supports microbial growth and to eliminate other potentially toxic
materials; Has lead to major reduction in spread of pathogens.
Primary Treatment - CORRECT ANSWER- ✔✔Physical step in the wastewater treatment
process; Removes solid material and form of sludge. Uses physical separation methods to
separate solid and particulate organic and inorganic materials from wastewater (screening and
sedimentation)
Secondary Treatment - CORRECT ANSWER- ✔✔Biological step in wastewater treatment
process. Dissolved organic matter transformed into microbial biomass and carbon dioxide by
Exam Questions and CORRECT Answers
Water - CORRECT ANSWER- ✔✔The most important potential common source of
infectious disease (i.e., Cholera, Shigellosis, Typhoid fever, etc); Can also be a source for
chemically induced intoxications
Public health - CORRECT ANSWER- ✔✔Ensuring water purity is essential for _______
Microorganisms - CORRECT ANSWER- ✔✔Treatment and purification schemes use _____
to identify, remove and degrade pollutants
Wastewater - CORRECT ANSWER- ✔✔Domestic sewage or liquid industrial waste
Wastewater treatment - CORRECT ANSWER- ✔✔Relies on industrial scale use of microbes
for bioconversion; Following treatment, the effluent waters suitable for release into surface
waters, release to drinking water purification facilities, NOT for drinking water.
Effluent water - CORRECT ANSWER- ✔✔Discharged treated wastewater
Sewage- Wastewater treatment - CORRECT ANSWER- ✔✔Consists of a number of steps
that are spatial separated; Its goal is to reduce organic and inorganic material in wastewater to
a level that no longer supports microbial growth and to eliminate other potentially toxic
materials; Has lead to major reduction in spread of pathogens.
Primary Treatment - CORRECT ANSWER- ✔✔Physical step in the wastewater treatment
process; Removes solid material and form of sludge. Uses physical separation methods to
separate solid and particulate organic and inorganic materials from wastewater (screening and
sedimentation)
Secondary Treatment - CORRECT ANSWER- ✔✔Biological step in wastewater treatment
process. Dissolved organic matter transformed into microbial biomass and carbon dioxide by
