Question

7- list the ways in which waste water present in sewage is generated and the kind of contaminents present in each.​

Answer 1

Answer:

Blackwater: It originates from toilet fixtures, dishwashers, and food preparation sinks. It is highly contaminated with dissolved chemicals, particulate matter and is very pathogenic. Graywater: It originates from bathroom sinks, laundry machines, spas, and bathtubs. It contains urine.