Donate for Rainwater Harvesting:All living things including plants, animals and human beings need water to live and to carry out different cellular activities
All living things including plants, animals and human beings need water to live and to carry out different cellular activities.
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activities, such as cleaning, washing, bathing, cooking, drinking and other domestic and industrial uses.
Water is a precious, essential, and abiotic component of the ecosystem. Today we all are
heading toward the scarcity of water, and this is mainly because of the lack of water
conservation and pollution of water bodies. So, let us not waste a drop of water and start conserving water for further use.
There are different methods used for conserving water; this article explains the rainwater harvesting system with a simple diagram.
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How to Harvest the Rainwater?
Rainwater harvesting systems consists of the following components
Catchment- Used to collect and store the captured rainwater.
Conveyance system – It is used to transport the harvested water from the catchment to the recharge zone.
Flush- It is used to flush out the first spell of rain.
Filter – Used for filtering the collected rainwater and removing pollutants.
Tanks and the recharge structures: Used to store the filtered water which is ready to use.
The process of rainwater harvesting involves the collection and the storage of rainwater with the help of artificially designed systems that run off naturally or man-made catchment areas like- the rooftop, compounds, rock surface, hill slopes, artificially repaired impervious or semi-pervious land surface.
Several factors play a vital role in the amount of water harvested. Some of these factors are:
The quantum of runoff
Features of the catchments
Impact on the environment
Availability of the technology
The capacity of the storage tanks
Types of the roof, its slope and its materials
The frequency, quantity and the quality of the rainfall
The speed and ease with which the rainwater penetrates through the subsoil to recharge the groundwater.
The rainwater harvesting system is one of the best methods practised and followed to support the conservation of water. Today, scarcity of good quality water has become a significant cause of concern.However, rainwater, which is pure and of good quality, can be used for irrigation, washing, cleaning, bathing, cooking and also for other livestock requirements.
Advantages of Rainwater Harvesting
The benefits of the rainwater harvesting system are listed below.
Less cost.
Helps in reducing the water bill.
Decreases the demand for water.
Reduces the need for imported water.
Promotes both water and energy conservation.
Improves the quality and quantity of groundwater.
Does not require a filtration system for landscape irrigation.
This technology is relatively simple, easy to install and operate.
It reduces soil erosion, stormwater runoff, flooding, and pollution of surface water with fertilizers, pesticides, metals and other sediments.
It is an excellent source of water for landscape irrigation with no chemicals, dissolved salts and free from all minerals.
The different methods of rainwater harvesting include:
Rooftop rainwater harvesting – The rooftop becomes the catchments, and the rainwater from the building and houses are collected. The components of the rooftop rainwater harvesting are:
First, flush.
Transportation.
Catchment.
Filter.
Surface runoff harvesting – It is the system that collects rainwater, which flows away as surface runoff. The runoff rainwater is caught and used to recharge aquifers by adopting appropriate techniques.
The advantages of rainwater harvesting are:
It is cost-effective
Conserves water
A source of water for landscape irrigation
It is a simple method and easy to practice
It reduces soil erosion and pollution of water bodies due to fertilizers and pesticides
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