Enviromental Biology Flashcards
What are the two treatments for sewage water?
Primary: non-biological
Secondary: biological
What are the important types of microbes in sewage plants?
Methanogens
Nitrifying
Denitrifying
What are methanogens?
Generate methane from acetate. Done by archea
What are nitrifying bacteria?
Aerobes used to convert nitrogenous waste into nitrate
What are Denitrifying microbes?
Anaerobes convert nitrate to N2
What is the anoxic second treatment?
Used to breakdown solid waste in a sludge digester broken down by microbes.
In the anoxic second treatment methane is produced by what?
Methanogenic archea- methane is collected to produce energy
What microbes is use to produce flocs in water treatment?
Zoogloea ramigera
How do Amonnia oxidising bacteria work?
They use ammonia monooxygenase and hydroxylamine oxidoreductase
Name two ammonia oxidising bacteria?
Nitrosomonas and nitrosolobus
Name two nitrifying bacteria?
Nitrospira and nitrococcus
Name the enzymes for denitrification?
Nitrate reductase
Nitrite reductase
Dinitric oxide
N2O reductase
End product N2
What are anammox bacteria?
Bacteria the produce energy via ammonia and nitrites- inhibited by high oxygen levels
Name an anammox bacteria?
Brocadia anammoxidans
What is an ammoxasome?
The organelle used to generate energy from combination of ammonia and nitrite.
