Secondary- Trickling Filters Flashcards
1
Q
What are the three most common secondary treatment processes?
A
Trickling filters, rbc’s, and activated sludge
2
Q
What are the basic parts of a trickling filter?
A
media and retaining structure, underdrain system, distribution system
3
Q
What is the media used for?
A
provides large surface area where slime growth develops
4
Q
What is zoogleal film?
A
Organisms that form the slime growth and break down organics in wastewater
5
Q
Media depth for rocks? Media depth for synthetic?
A
3-8 ft, 15-30 ft
6
Q
What is the underdrain system?
A
Slopped bottom that leads to a center channel which collects filter effluent
