recap of slides
What does pH measure?
amount of H+ ions in a solution (containing water)
What are the four probes we use in calenviro to test the wastewater's parameters?
turbidimeter, EC probe, DO probe, pH probe
What is a sludge?
Byproduct of treated wastewater
What is the longest river in the world?
Nile River
How do you describe a funny sewage joker?
What is the pH goal for the competition?
~6.5-7.5
What is chlorine used for in treating wastewater?
Disinfection
What is a common coagulant that was mentioned in the slides?
Alum
What is the world's deepest river?
Congo River
Where do bacteria go to resolve disputes?
The settling chamber
What are some sources of wastewater (name at least three)?
Restaurants, Laundry, Flushing, Cooling Water, Dishes
What are some things that affects volume retention? (name at least two things)
clogging, trapped water in media, spills
What is the objective of the secondary treatment process?
Removes TSS and BOD from the wastewater
Name all the oceans in the world
Altantic, Pacific, Indian, Arctic and Sputhern (Antarctic)
What is the king's favorite type of precipitation?
Hail or Reign
What is the common unit for turbidity and what does it measure?
NTU, measure of the clarity of water (how many particles are floating around in it)
What are two things we use to treat DO?
Filter design, Chemicals
What is the average detention time for the aeration tank?
~4 to 8 hours
Fill in the blank: About __ percent of wastewater worldwide flows back into the ecosystem without being treated or reused
80
What are two reasons why you should never drink toilet water?
Number one. And number two.
How does aeration (secondary treatment work)
Utilizes recycled sludge/ microorganisms "eat" bacteria in wastewater
What are the six water quality parameters that we test for?
turbidity, pH, DO, EC, volume, chlorine
What are the six steps of wastewater treatment(in order) as mentioned in the slides?
1. screening, 2. settling tank (primary treatment), 3. aeration (secondary treatment), 4. filtration, 5. disinfection, 6. sludge treatment
Wastewater accounts for about _% of greenhouse gas emissions
1.57
Why did the ocean break up with the pond?
She thought he was too shallow