HISTORY
THE INDUSTRIAL REVOLUTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
They became overcrowded
|
|
|
Disease spread rapidly due to unsanitary conditions
|
|
|
Housing, education, and police were lacking
|
|
|
Modern sewage systems allowed for waster to be transported outside the cities
|
Detailed explanation-1: -Majorly, four methods of sewage water treatment are followed – physical, biological, chemical, and sludge water treatment. By following these methods, the wastewater is disinfected from all the sewage materials and converted into treated water that is safe for both human usage and the environment.
Detailed explanation-2: -In small-diameter gravity systems, septic tanks are first used to remove settleable and floating solids from the wastewater from each house before it flows into a network of collector mains (typically 100 mm, or 4 inches, in diameter); these systems are most suitable for small rural communities.
Detailed explanation-3: -Examples are septic tanks, chemical toilets, composting pits. Septic tanks are suitable for places where there is no sewerage system, for hospitals, isolated buildings or a cluster of 4 to 5 houses.
Detailed explanation-4: -Eighty per cent of water leaves homes as sewage. Since cities do not have any accounts of the sewage they generate, they cannot plan and do not have the capacity to treat all the sewage they generate, Narain said. This has the gravest implications for rivers where the faecal sludge is dumped.