Question

how safe is the water at the end of the water treatment how it is tested​

Answer 1

the end of the water treatment level is the chemical method and it is treated in the 1. the sewage is passed from the bar screens .

2. the grit , pebbles settled down and the water is sent to sedimentary tanks .

3. solid such as faeces settle down at bottom and the are removed with a scraper. this is called sludge. this this how the water is obtained is called clarified water . this is how the water is treated .