Studied by 3 people
Sedimentation
________ allows tiny particles to settle out from still water, which produces sewage sludge and effluent (the liquid which remains on top)
Microbes
________ can cause illnesses.
fresh water
In the UK, rain provides enough_______to meet the needs of the population.
sewage sludge
The ________ is digested anaerobically by specific bacteria.
Waste water
________ from homes, industry and agriculture must be treated before being released into the environment.
aerobic bacteria
The effluent is treated with ________ to reduce the volume of solid waste.
Agricultural waste water
________ may contain fertilisers or pesticides which can disrupt sensitive ecosystems.
Industrial waste water
________ may contain harmful chemicals such as toxic metal compounds.
waste water sources
agricultural systems, organic matter and sewage
the why potable water is produced
_____depends on where you are
desalination
the process of removing salt from seawater.
wet countries
fresh water sources
dry countries
sea water treated by desalination
waste water
water that needs to be disposed of
Note 
Flashcard (100)