How Is Water Treated In Sewage Works

The video explores the journey of human sewage, highlighting that over a third of the global population lacks access to safe toilets, leading to waterborne diseases. It contrasts the water-intensive flush system with composting toilets, which conserve water and return nutrients to the soil without pathogens. The sewage treatment process involves multiple stages to separate waste and pathogens, ultimately purifying water for rivers. The video emphasizes the importance of safe sanitation and the potential contamination risks from industrial waste.

What happens to the sludge if industrial waste is diverted into domestic sewers?

Explain the process of how aerobic bacteria are used in water treatment.