waste water Flashcards
What are the two major types of wastewater?
Sanitary water and unsanitary water
Pure water and industrial wastewater
A
A Sanitary Sewer is used to treat which type of waste?
toilets,sinks,sinks
water from manufacturing process
rainwater
answer A
What is the term used to describe a process or organism that requires the presence of free oxygen?
aquatic
aerobic
aqua
answer B
Electrically driven fans or blowers used to force air into a vessel are called ________.
air circulators
air movers
answer B
Which test measures the amount of oxygen that a chemical process consumes?
TOC
BOD
COD
answer C
What is the name of the process used to bubble air or gas into a solution?
aeration
hydration
infusion
answer A
What gives liquids a turbid appearance?
suspended solids
biological oxygen
chemical oxygen
answer A
Which test measures how much oxygen is consumed by bacteria digesting a wastewater sample?
TOC
BOD
COD
answer B
In water treatment, what is the term that means an artificial pool for storage and treatment of polluted or excessively hot sewage, industrial waste, and so forth?
lagoon
A marsh
catch basin
answer A
What is pH?
A measure of the quantity of hydrogen ions in a solution that can react and indicates whether a substance is an acid or a base
a measure of water pollution
answer A
What is the one of the oldest methods for treating wastewater?
lagoon system
natural aeration system
a natural stream system
answer A
What is the most common method for treating wastewater?
activated sludge system
natural stream system
answer A
Aeration is used to treat waste water
To support aerobic microbiological treatment
to prevent foaming
to clarify the water
answer A
Devices that remove particles from a process, allowing the clean product to pass through are known as ________.
funnels
filters
barriers
answer B
What are the two important process variables to control in a wastewater treatment system?
toxicity and acidity
flow and level
answer B
Temperature becomes important in the wastewater treatment process when
wildlife is nearby
biological treatment is involved
answer B
How is maintenance performed on multiple aeration basins?
one at a time
all at once
answer A
What is one possible consequence of a sudden increase of high organic carbon in the process sewer?
it might clog the outlets
it might kill waste consuming bacteria
answer B
How long does it take to grow new waste-consuming bacteria to replace those that were compromised for any reason?
4 weeks
1 week
answer A
The decomposition of organic material can create flammable gases such as ________.
hydrogen dioxide and carbon monoxide
hydrogen sulfide and methane
answer B
A CPI (Corregated Plate Interceptor) separator separates oil and sludge from water based on:
boiling points
different denistys
