Water Treatment Final Exam 2025/2026
Exam Questions with 100% Correct
Answers | Latest Update
Physical Treatment - 🧠 ANSWER ✔✔Causing a change in the constituent's
physical characteristic
Physical Treatment processes - 🧠 ANSWER ✔✔coagulation, flocculation,
sedimentation, filtration
Chemical treatment - 🧠 ANSWER ✔✔Causing the constituent to undergo a
chemical change
Chemical Treatment processes - 🧠 ANSWER ✔✔disinfection and other
treatment that involves a chemical addition
Surface water - 🧠 ANSWER ✔✔higher flows, more available volume, easier
to access, easier to contaminate, higher TOC, turbidity, pathogens
,Groundwater - 🧠 ANSWER ✔✔lower flows, "everywhere", natural filtration,
less likely to contain pathogens, low turbidity, higher in total dissolved
solids, hard to remediate once contaminated, source replenishment low
Seawater - 🧠 ANSWER ✔✔too energy/cost intensive
Reclaimed water - 🧠 ANSWER ✔✔considered by many to be the future of
drinking water but it is costly and unsafe
constituents - 🧠 ANSWER ✔✔physical, chemical, microbiological, and
radiological characteristics of water
Particulates - 🧠 ANSWER ✔✔less than 35 um
Waterborne Pathogens - 🧠 ANSWER ✔✔disease-causing microorganisms
that affect all humans and are present in water
"classic" pathogens - 🧠 ANSWER ✔✔Shigella, V. cholera, and S. typii
"modern" pathogens - 🧠 ANSWER ✔✔E. coli, Adenovirus, Cryptosporidium,
Giardia
inorganic chemicals - 🧠 ANSWER ✔✔carbonate species, hard water ions,
regulated contaminants
, Carbonate species - 🧠 ANSWER ✔✔carbonic acid, bicarbonate, carbonate
hard water ions - 🧠 ANSWER ✔✔calcium, magnesium
regulated contaminants - 🧠 ANSWER ✔✔nitrate, cadmium, mercury,
arsenic
Natural organic matter (NOM) - 🧠 ANSWER ✔✔naturally derived organic
constituents
NOM problems - 🧠 ANSWER ✔✔reacts with chemical disinfectants to
create harmful DBPs, can react with other chemicals making them harder
to remove, increases required chemical dosage for coagulation and
disinfection, fouls filtration membranes
synthetic organic chemicals (SOCs) - 🧠 ANSWER ✔✔anthropogenic
organics derived from industrial, agricultural, and municipal acitivities
Most important measurement - 🧠 ANSWER ✔✔turbidity
NTUs - 🧠 ANSWER ✔✔turbidity units
Total suspended solids - 🧠 ANSWER ✔✔solids retained in a 0.45um filter
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
Exam Questions with 100% Correct
Answers | Latest Update
Physical Treatment - 🧠 ANSWER ✔✔Causing a change in the constituent's
physical characteristic
Physical Treatment processes - 🧠 ANSWER ✔✔coagulation, flocculation,
sedimentation, filtration
Chemical treatment - 🧠 ANSWER ✔✔Causing the constituent to undergo a
chemical change
Chemical Treatment processes - 🧠 ANSWER ✔✔disinfection and other
treatment that involves a chemical addition
Surface water - 🧠 ANSWER ✔✔higher flows, more available volume, easier
to access, easier to contaminate, higher TOC, turbidity, pathogens
,Groundwater - 🧠 ANSWER ✔✔lower flows, "everywhere", natural filtration,
less likely to contain pathogens, low turbidity, higher in total dissolved
solids, hard to remediate once contaminated, source replenishment low
Seawater - 🧠 ANSWER ✔✔too energy/cost intensive
Reclaimed water - 🧠 ANSWER ✔✔considered by many to be the future of
drinking water but it is costly and unsafe
constituents - 🧠 ANSWER ✔✔physical, chemical, microbiological, and
radiological characteristics of water
Particulates - 🧠 ANSWER ✔✔less than 35 um
Waterborne Pathogens - 🧠 ANSWER ✔✔disease-causing microorganisms
that affect all humans and are present in water
"classic" pathogens - 🧠 ANSWER ✔✔Shigella, V. cholera, and S. typii
"modern" pathogens - 🧠 ANSWER ✔✔E. coli, Adenovirus, Cryptosporidium,
Giardia
inorganic chemicals - 🧠 ANSWER ✔✔carbonate species, hard water ions,
regulated contaminants
, Carbonate species - 🧠 ANSWER ✔✔carbonic acid, bicarbonate, carbonate
hard water ions - 🧠 ANSWER ✔✔calcium, magnesium
regulated contaminants - 🧠 ANSWER ✔✔nitrate, cadmium, mercury,
arsenic
Natural organic matter (NOM) - 🧠 ANSWER ✔✔naturally derived organic
constituents
NOM problems - 🧠 ANSWER ✔✔reacts with chemical disinfectants to
create harmful DBPs, can react with other chemicals making them harder
to remove, increases required chemical dosage for coagulation and
disinfection, fouls filtration membranes
synthetic organic chemicals (SOCs) - 🧠 ANSWER ✔✔anthropogenic
organics derived from industrial, agricultural, and municipal acitivities
Most important measurement - 🧠 ANSWER ✔✔turbidity
NTUs - 🧠 ANSWER ✔✔turbidity units
Total suspended solids - 🧠 ANSWER ✔✔solids retained in a 0.45um filter
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
