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