Question

Name the various contaminants present in sewage

Answer 1

sewage is a complex mixture of many suspended soilds, organic and inorganic impurities disease causing bacteria and other microbes . 

ORGANIC MATTER : Fruits , vegetables , human faeces etc
INORGANIC MATTER : nitrates , phosphates
BACTERIA : such as which cause cholera n typhoid
MICROBES: such as which cause dysentry
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Answer 2

Organic pollutants .It is a complex mixture of chemicals with many distinctive chemical states..include high concentrations of ammonium, nitrate, nitrogen,phosphorus,high conductivity,high alkalinity,with pH typically ranging between 7 and 8..