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Wastewater Lagoons

Across
Find the organic loading rate in grams BOD5/m3-day: flow rate- 20 m3/d, incoming concentration- 0.2 kg BOD5/m3, lagoon volume- 750,000 L, L:W ratio- 3:1. (round to nearest whole number)
Lagoons work best in a _______ climate.
What is the term for a polishing lagoon?
Helminth eggs and protozoan cysts can be close to 100% removed because of long:
Which lagoon provides the highest BOD5 removal?
This color algae indicates that there is undesirable algae
What can you purchase to reduce surface algae?
Down
Why do you want to put a lagoon 500m downwind from the nearest house?
Anaerobic ponds function like a ______.
High levels of ______ can cause oxygen to be present, which will cause poor pond functioning.
If there is an aerobic, facultative and maturation pond in series then the effluent can be used for _________ irrigation.
Why would it be beneficial to have ponds in parallel?
What type of lagoon can operate in colder climates?
If there is high soil permeability then a _______ should be placed.