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Water Treatment Exam 1|71 Q’s and A’s
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Water Treatment Exam 1|71 Q’s andA’s
What are the main steps during the Hydrologic cycle? - -1. Evaporation
2. Condensation
3. Transportation
4. Transpiration
5. Precipitation
6. Runoff
-Evaporation - -Defined as: Water is transferred from earths surface to
atmosphere.
-80% occurs from oceans
-Evaporation occurs more at warm temperatures
-Condensation - -Defined as: Conversion of water vapor to liquid
-excess water vapor condenses to form cloud droplets
-Transportation - -Defined as: Movement of water in the atmosphere
-Also referred to as Advection
-Precipitation - -rain, hail, snow, sleet, freezing rain
-Amount varies by location & time
-Ecosystems are structured by:
1. Precipitation
2. Temperature
-Where is ground water found within soil? - -Zone of aeration & zone of
saturation
-Groundwater - -Defined as: Water that has penetrated the surface and is
found in the soil
-Watertable - -Defined as: The boundary between zone of saturation and
zone
-What are two steps during hydrologic cycle that are considered as "pure
water" processes? Why are they important? - -1. Evaporation- movement of
"sea" water
2. Evaportranspiration- movement of water through plants.
They are important because they are " pure water" processes humans rely
on for fresh water.
, -Excess water usage & development around water resources result in? - -1.
Decline in water quantity
2. Decline in water quality
-Potable water - -Defined as: Water fit for human consumption
-Pathogen - -Defined as: Disease causing organism including; viruses,
bacteria, and protozoans
-Compare & Contrast Characteristics of Groundwater & Surface water - -
Groundwater:
*Uniform quality
-Low turbidity
-low taste/odor
-low color
-low/ no dissolved oxygen
-Undesirable minerals- High Fe, Mn, CaCO3
-High hardness
Surface Water:
*Variable quality
-High turbidity
-colored
-Dissolved Oxygen
-Low hardness
-Taste & odor
-What are the objectives of public drinking water treatment - -1. Provide
potable water for safe human consumption
2. To provide aesthetically acceptable water
- Turbidity
- Color
- Taste
-Odors
-outline the sources of groundwater vs. sources of surface water - -
Groundwater-
-Deep wells (more dissolved materials)
-Shallow wells
Surface Water
-Rivers
-Lakes
-Reservoirs
~sometimes springs
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