Is it possible to classify sewage based on smell and colour? If so name them. [3 MARKS]

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Solution

Classification: 1 Mark each

Yes sewage is classified based on colour and smell.
They are:-
(i) Sullage Water: This is referred to the waste water that comes from kitchen sinks.
(ii) Foul waste: This refers to the waste water that is released from lavatories and toilets of both domestic and commercial establishments
(iii) Trade waste: It is the liquid waste generated on commercial premises and discharged to our sewerage system

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