Flashcards in Unit 3 - Key Area 2 (Water) Deck (19)
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1
The breakdown of organic waste by microorganisms in the absence of oxygen.
Anaerobic digestion
2
Is gas produced from the breakdown of organic waste by microorganisms in anaerobic conditions.
Biogas
3
Use of microorganisms to breakdown organic waste.
Biological oxidation
4
Waste water that includes water from toilets that needs to be treated extensively before it can be reused.
Blackwater
5
Method to improve water quality involving the addition of a chemical which makes smaller particles sticking together ma king them easier to remove.
Coagulation
6
A sustainable way to manage water resources involving removal of salt from water.
Desalination
7
Method to improve water quality involving killing pathogens. (different in developed and developing countries)
Disinfection
8
A method of water conservation used in agriculture
Drip irrigation
9
Liquid waste or sewage that can be released into waterways.
Effluent
10
Method to improve water quality involving the removal of bacteria, parasites and remaining suspended particles. (different in developed and developing countries)
Filtration
11
Formed when tiny particles stick together.
Floc
12
Method to improve water quality involving making smaller particles stick together as a “floc” to allow them to be removed.
Floculation
13
Waste water produced in homes that can be reused.
Greywater
14
Something that can cause disease.
Pathogen
15
A multi stage process used to improve water quality.
Purification
16
Method to improve water quality involving removing larger pieces of debris from surface water.
Screening
17
Method to improve water quality involving the settling particles as sludge.
Sedimentation
18
The liquid formed when the solids have been removed from sewage after sedimentation.
Sewage liquor
19
