6th lecture wastewater

Lagoons

Shallow pools of clear water,for the purpose of treating water

Oxidation pond

Stabilization pond also known as______

Aerobic Ponds

Shallow pond less than 1m in depth, where dissolved oxygen is maintained throught out the entire depth by the action of photosynthesis

30-45

Aerobic pond depth ______cm

3-5

Aerobic pond detention time ______ days

Anaerobic Ponds

Deep pond that recieves high organic loading

Facultative pond

Middle zone

1-2.5

Facultative pond depth_____m

Maturation or tertiary pond

Polishing pond

2-3

Maturation depth _____ft

18-20

Maturation duration time _____days

Aerated lagoon

Pond oxygenated through the action of surface or diffuses air aeration

2-6

Aerated lagoon depth _____m

3-10

Aerated lagoon detention time ______days

Conatructed wet land

Artificially wetland

hydrophonics

Plants along tbe plugflow

25-35

_______% of the artificial wetland surface should be open water with a depth no greater than 5ft

<2ft deep

Prevemt mosquito production problem, the design is such that the occurance of hydraulically static area is minimized