Environmental Engineering Test 2 – Study Guide, Review & Practice Questions
the purpose of water treatment - correct answer ✔✔To provide potable water that is palatable
potable water - correct answer ✔✔water that is healthy for human consumption and free of
harmful microorganisms and organic and inorganic compounds that either cause adverse
physiological effects or do not taste good
Palatable Water - correct answer ✔✔water that is aesthetically acceptable to drink or free from
turbidity, color, odor, and objectionable taste
water that is palatable... - correct answer ✔✔may not be safe to drink
issues with water treatment - correct answer ✔✔-limited freshwater supplies
-uses a lot of energy to treat
types of constituents in water - correct answer ✔✔-inorganic constituents
-naturally occurring organic constituents
-anthropogenic organic constituents
-living organisms
inorganic constituents - correct answer ✔✔do not degrade
physical characteristics of water - correct answer ✔✔-turbidity
-particles
-color
-taste
, -odor
-temperature
turbidity - correct answer ✔✔the optical clarity of water. It is caused by the scattering and
absorbance of light by suspended particles in the water.
Nephelometric Turbidity Unit (NTUs) - correct answer ✔✔A measure of turbidity
particles - correct answer ✔✔solids larger than molecules but generally not distinguishable by
the unaided eye
suspended solids - correct answer ✔✔Particles larger than 1 μm (larger)
colloidal particles - correct answer ✔✔particles between about 0.001 and 1 μm (medium)
dissolved particles - correct answer ✔✔smaller than 0.001 μm (smaller)
Natural organic matter (NOM) - correct answer ✔✔comprises colloidal particles and dissolved
organic carbon
dissolved organic carbon (DOC) - correct answer ✔✔That portion of the organic carbon in water
that passes through a 0.45 µm pore-diameter filter.
which body of water had the lowest amount of turbidity? - correct answer ✔✔groundwater
Apparent color - correct answer ✔✔measured on unfiltered samples, includes color from
turbidity
the purpose of water treatment - correct answer ✔✔To provide potable water that is palatable
potable water - correct answer ✔✔water that is healthy for human consumption and free of
harmful microorganisms and organic and inorganic compounds that either cause adverse
physiological effects or do not taste good
Palatable Water - correct answer ✔✔water that is aesthetically acceptable to drink or free from
turbidity, color, odor, and objectionable taste
water that is palatable... - correct answer ✔✔may not be safe to drink
issues with water treatment - correct answer ✔✔-limited freshwater supplies
-uses a lot of energy to treat
types of constituents in water - correct answer ✔✔-inorganic constituents
-naturally occurring organic constituents
-anthropogenic organic constituents
-living organisms
inorganic constituents - correct answer ✔✔do not degrade
physical characteristics of water - correct answer ✔✔-turbidity
-particles
-color
-taste
, -odor
-temperature
turbidity - correct answer ✔✔the optical clarity of water. It is caused by the scattering and
absorbance of light by suspended particles in the water.
Nephelometric Turbidity Unit (NTUs) - correct answer ✔✔A measure of turbidity
particles - correct answer ✔✔solids larger than molecules but generally not distinguishable by
the unaided eye
suspended solids - correct answer ✔✔Particles larger than 1 μm (larger)
colloidal particles - correct answer ✔✔particles between about 0.001 and 1 μm (medium)
dissolved particles - correct answer ✔✔smaller than 0.001 μm (smaller)
Natural organic matter (NOM) - correct answer ✔✔comprises colloidal particles and dissolved
organic carbon
dissolved organic carbon (DOC) - correct answer ✔✔That portion of the organic carbon in water
that passes through a 0.45 µm pore-diameter filter.
which body of water had the lowest amount of turbidity? - correct answer ✔✔groundwater
Apparent color - correct answer ✔✔measured on unfiltered samples, includes color from
turbidity
