Question

List the ways in which wastewater present sewage is generated and the kind of contaminants present in each

Answer 1

Types of wastewater

Ocean dumpingWastewater comes in three main types namely Blackwater, Graywater and Yellow water.

2.Blackwater

This is wastewater that originates from toilet fixtures, dishwashers, and food preparation sinks. It is made up of all the things that you can imagine going down the toilets, bath and sink drains. They include poop, urine, toilet paper and wipes; body cleaning liquids, anal cleansing water and so on. They are known to be highly contaminated with dissolved chemicals, particulate matter and is very pathogenic.

3.Graywater

This is wastewater that originates from non-toilet and food fixtures such as bathroom sinks, laundry machines, spas, bathtubs and so on. Technically it is sewage that does not contain poop or urine. Graywater is treated very differently from Blackwater and is usually suitable for re-use.

4.Yellow water  

This is basically urine collected with specific channels and not contaminated with either blackwater or graywater

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Answer 2

waste water is water that has been used in the houses for domestic use and it has become dirty and not suitable for any other use for example drinking hence there is need to purify this water first before it runs back in the taps as clean water ready for consumption and use again

waste water that is present in sewage or the sewage itself is not suitable for consumption since it contains a number of contaminants for example human wastes and excretion .this water has also been used for other cleanings hence it has detergents such as soaps