Question 24
The terms sewage, sewers and sewerage are interlinked with each other. Can you explain, how?
The terms like ‘sewage’, ’sewers’ and ‘sewerage’ are interlinked with each other because sewage is a mixture of wastewater coming out of homes and other places. It is a complex mixture containing suspended solids, organic and inorganic impurities, nutrients, saprotrophic and disease causing bacteria and other microbes. Sewerage is like a transport system that carries sewage from the point where it is produced to the point of disposal, i.e. treatment plant. The network of big and small pipes are called sewers.