why are there limitations in rainwater harvesting in urban areas?how can water conservation be done through public participation??
Answers
Explanation:
Rainwater harvesting can supplement water sources when they become scarce or are of low quality like brackish groundwater or polluted surface water in the rainy season. as well as a treatment before water consumption (e.g. filtration or/and disinfection) are very important.
use water-efficient aerators for taps and flushefor low-flow shower heads, which lessen the amount of water used. use water-efficient aerators for taps and flushes. Use a bowl of water to wash fruits and vegetables, instead of running water and reuse this water for gardening.
Turn off the tap, when you brush your teeth.
Answer:
While raining in the city, water will fall from the building roof.
If there is an open ground, 50% of the water will settle in the soil.
But if it is concrete, most of the water will be carried away.
Due to concreting most parts in the city, there is no area for water infiltration and the water content of soil was decreased.
This causes flooding in rainy seasons and water scarcity in summer seasons.
This can be changed if rainwater harvesting is done in each and every building of the city.
So it requires the public participation.
Explanation:
While raining in the city, water will fall from the building roof.
This will be carried down to municipal drains through pipes.
Then it will converge and flow into the nearby water resources such as streams, seas, etc...
Based on the land surface, the amount of water which will be absorbed is determined.
The surface determines that whether the water will be absorbed or it will be carried away.
If there is an open ground, 50% of the water will settle in the soil.
But if it is concrete, most of the water will be carried away.
In the olden days, there was soil in the buildings premises.
And there will be lot of open spaces and so it took time to fill the runnels.
But now due to the depletion of soil, the water immediately enters the runnels and it will result in flood.
Due to concreting most parts in the city, there is no area for water infiltration.
So the water content of soil was decreased.
This causes flooding in rainy seasons and water scarcity in summer seasons.
This can be changed if rainwater harvesting is done in each and every building of the city.
And also if the wells or borewells in the area were recharged, their life will be extended.
Most importantly, the area will become self-sufficient in water.
They need not depend on the government for water.
So it requires the public participation.