Water Purification Exam Questions and Answers 100% Solved
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Course
Water Purification
Institution
Water Purification
Water Purification Exam Questions and
Answers 100% Solved
Water - 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 - Ensuring water purity is essential for ...
eliminate other potentially toxic materials; Has lead to major reduction in
spread of pathogens.
Primary Treatment - ✔✔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 - ✔✔Biological step in wastewater treatment
process. Dissolved organic matter transformed into microbial biomass and
carbon dioxide by aerobic respiration and fermentative reactions carried out
by various microbes; Forms stable floc-settles well, bulking sludge-does not
settle properly
Activated sludge system - ✔✔Horizontal flow or materials with recycling of
sludge; Part of secondary treatment.
Tricking filter - ✔✔Waste effluent passed over rocks/solid materials with
microbial biofilms; the community degrades the organic waste.
Extended Aeration - ✔✔Reduces the amount of sludge produced by using
microbial biomass for energy requirements.
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