The most common and easy method of rain water harvesting is the rooftop harvesting. It can be used for cultivation, plant water or defecation. Using this technique, we can collect large amounts of clean rain water in rainy season. Rainy Season Essay 3. Rainwater harvesting is a system that collecting and stores the rainwater in tanks and other reservoirs for future use, as it is very important to conserve rainwater so that there is no shortage of essay on rain water harvesting natural resource. Last 25 Years UPSC Mains Question Papers with Answers PDF December 22, essay on rain water harvesting,
Essay on rain water harvesting (100 words)
Rainwater harvesting involves the collection and storage of rainwater into the natural reservoirs or artificial reservoirs in order to prevent the surface water runoff. Rainwater harvesting is a process of collecting and storing rain water for using it as a backup supply of fresh water to meet everyday domestic and agricultural requirements, especially when water becomes scarcely available. There are several methods by which we can collect rainwater flowing from our roof tops, ditches, gardens, essay on rain water harvesting, fields, forests and other locations. These methods are discussed in detail in the following essays. Rainwater harvesting not only provides fresh water in difficult times but also prevent naturally occurring fresh water resources from drying up, by reducing the demand of water, essay on rain water harvesting.
Rainwater harvesting is the least we can do to maintain the supply of water and also to support life on earth. We have provided variety of paragraph and essay on rain water harvesting under different words limit for the students. It is very important topic on which students may be assigned to write essay or paragraph on the rain water harvesting. You can select any rain water harvesting essay given below according to the need and requirement. Rain water harvesting is a technique used for collecting and storing rainwater by using various means in different resources for the future use purpose like cultivation, etc.
Rain water can be collected into the natural reservoirs or artificial tanks. Another method of collection is infiltration of surface water into the subsurface aquifers before getting lost by surface overflow. Rooftop harvesting is also a method to collect rainwater. It is of big importance to the people living in the less rainfall areas. They can continue seasonal crop harvesting using collected rain water even in the lack of regular water supply. Whenever it rains, rain water gets collected into the man made ponds or tanks. Rain water harvesting is the collection of rainwater into the man made resources or any natural resource like pond, lake, etc at the same place where it falls from rooftops or ground.
Two main techniques of rainwater harvesting are storage for future use and recharge into the ground. It can be used for crop harvesting, gardening, toilets, etc, essay on rain water harvesting. Following are the benefits of rainwater harvesting at individual or city-wide level:, essay on rain water harvesting. Rainwater harvesting means collecting the rain water into the natural reservoirs or man-made tanks. It is the technique to collect and store rainwater for various purposes in the future. The most common and easy method of rain water harvesting is the rooftop harvesting. Using this technique we can collect lots of clean rain water in the rainy season. It can be essay on rain water harvesting for long time for the household purposes like gardening, livestock, and irrigation, etc.
Following are benefits of rain water harvesting:. Tamil Nadu is one of the states of India and now has been first Indian state where rainwater harvesting has been mandatory. Tamil Nadu state government has declared on 30 th of May to establish around 50, rainwater harvesting structures at various places in the Chennai. Till now, approximately 4, of the temples in the Tamilnadu have rain water tanks serving at various rituals in temples and help in recharging the groundwater. Every drop of rain water is like blessings of God to the people on the earth. Fresh rain water falls on the ground like pearls, so everyone should understand the importance of rain water especially in developing regions and rural areas lack of natural water resources.
We should try to collect rain water without wasting through rooftops and along streets run off. We should bring our old traditional harvesting practices using new and effective technologies to make easy water supply in all the regions. As only hand pumps, wells, and other resources of groundwater levels cannot fulfill the potable water need of hundreds of thousands of people. Rainwater harvesting is the most sustainable and effective way for many years to make water available in the areas lacking water. Rainwater harvesting is very low cost method along with lots of benefits.
It helps in various purposes like household works, field irrigation, livestock, agriculture and animal husbandry. It helps in rejuvenating the groundwater levels in both directly and indirectly manner. Groundwater level can be replenished by rain water harvesting methods of trenches, anicut, dug wells, contour, etc whereas other rain water harvesting methods like underground water tanks, ponds, etc help in reducing the use of groundwater for at least four to six months. It is very effective in the hilly regions and desert regions of the India and other countries. More and clean rain water can be collected in the rainy season by making large and clean water body. Now-a-days, people have been depended on the government system of water supply for getting water for their every need.
The present scenario of water management and distribution in the cities has been centralized by the government which has brought a big gap of community responsibility in water management. It has slowly but regularly finished the old traditional water harvesting system. Rainwater harvesting is again a new but old and effective technique of collecting rain water during rainy season for future usage purpose. It is being frequently used in various places of India to overcome the problems of lack of water. Rain water harvesting is the good source of ground water recharge in natural way.
However, the ground water level is getting less day by day because of the rapid urbanization and cities development at huge level as well as reduction in percolation of the rainwater to the ground. Rainwater harvesting is the way to reduce the use of ground water as well as maintain its level forever in the future. It is of more importance to the drought regions of India and other countries to supply the demands of water for various purposes. Following are mentioned points proving the fact why to harvest rainwater:. Rain water can be harvested in better way using following methods like surface runoff harvesting and roof top rainwater harvesting. Both are very effective methods help in enhancing the level of ground water and fulfill the need of water supply in easy and cost effective way.
Rainwater harvesting is the collection and storage of rain water in the natural resources or artificially designed resources to prevent water runoff and fulfill the lack of water in future. The quantity of water harvesting is affected by the number of factors like frequency of rainfall, quantity of rainfall, essay on rain water harvesting, way of collecting rain water, and size of resources to collect water. The ground water level is getting depleted day by day due to various reasons like deforestation and ecological imbalance. Increasing level of urbanization and industrialization constantly increases the demand of water supply especially in the urban areas.
It results in the overuse of ground water essay on rain water harvesting thus going low level. The risk of water scarcity in the future has been increased to a great extent and can be life threatening if some effective solutions are not followed. Water harvesting is very helpful and fulfill various need like recharging the ground water level, essay on rain water harvesting, reduces electricity bill spend in supplying water and provide easy water supply anytime when required, essay on rain water harvesting.
It is estimated that 1 meter rise in the water level saves around 0. Rain water harvesting is very necessary to be practiced by the people in all regions, essay on rain water harvesting. It is good to reduce essay on rain water harvesting fear of water scarcity in the future. Following are the points proving the fact that why rain water harvesting is necessary:. Collecting rain water to the surface is very effective and traditional technique. It can be done using small ponds, underground tanks, dams, weirs etc. However, ground water recharging technique essay on rain water harvesting a new concept of harvesting.
It can be done using dug wells, pits, trenches, hand pumps, recharge wells, recharge shafts, recharge lateral shafts with bore wells, spreading technique means spread of water to the stream, nala, etc. Rainwater Harvesting is a method of storing rainwater, to be used in several domestic and agricultural activities. The basic idea is to not let the rainwater runoff and get wasted, rather to collect it by simple mechanism so that it can be used during scarcity of water. In the following essay we will explore the importance of rainwater harvesting, its methods and systems and how it is traditionally done in rural India. Surface runoff is a term essay on rain water harvesting for precipitation that falls on the surface of essay on rain water harvesting and is subsequently lost to the environment.
If elaborate arrangements are made to collect surface runoff water by providing it a path into a pond or tank; gallons of water could be stored to be used for several activities. If designed efficiently, a essay on rain water harvesting to collect surface runoff water can collect huge quantities of runoff from roads, parks, and gardens etc enough to sustain a small community or even a city. However, runoff water contains impurities; therefore, it must be passed through filtration process before it could be reused. In roof top rainwater harvesting, the roof of a house or building functions as a catchment area for collecting rainwater.
The water falling on the roof is diverted through a network or pipes to the desired pit or tank. It is by far the most economical and easy method of rainwater harvesting, essay on rain water harvesting. Houses or buildings with sloping roof can install gutters on the edges to collect the falling rain and essay on rain water harvesting carry it to the destination using pipes or artificially created ditch. Though, care must be taken to flush out the water collected from first rain as it contains soluble impurities, essay on rain water harvesting. In some places in India, still very traditional and ancient methods of rainwater harvesting are followed. These methods have proved successful in past and are still used in rural as well as urban India. Some of the significant traditional methods of rainwater harvesting in India are listed below.
This traditional method of rainwater harvesting is followed in tropical belt of southern states of Karnataka and Kerala, essay on rain water harvesting. These regions are rich in laterite soil with naturally occurring depressions with three high sides. The three sides automatically function as the catchment area for collection of water in the depression. A small dam is constructed on the low lying fourth end of the depression to contain the runoff. Surangas are traditional water harvesting system only used in Kasargod district of south Indian state of Kerala. The soil found in this region is hard laterite which is favorable for the construction of suranga cave. Suranga is like a horizontal cave excavated in hilly terrain of the area, through which water oozes out and essay on rain water harvesting thus collected in a pond.
Though, this method is locally being used since centuries, it is sadly now gradually being replaced by bore wells. Taankas are part of a traditional rainwater harvesting method practiced in the western state of Gujarat, essay on rain water harvesting. Taankas are basically underground reservoirs with a capacity of storing thousands of liters of rainwater. Water stored in a taanka is sealed against sunlight and therefore remains fresh for years. Rainwater harvesting provides an independent source of water supply during the scarcity of water. It becomes more valuable in context to the places where rain is scarce and uncertain. Also, in areas where fresh water is a costly commodity, preserving rain water is more economical option.
Rain water thus preserved can be used to meet several household requirements like — washing and cleaning, gardening etc. In case of unforeseen natural calamities like famine and droughts, rainwater harvesting might prove to be a blessing for the sufferers.
essay structure worksheet
The choice of a method depends upon the suitability of a particular site. Essay 2. Importance of Rainwater Harvesting: i. Quantity of water available is fixed. Essay 3. Objectives of Rainwater Harvesting: i. To restore supplies from aquifer due to over explorations. Essay 4. Methods of Rainwater Harvesting: The different methods of rainwater harvesting are listed below:. In this method the first step involves the collection of rainwater from the Rooftops. A network of drain pipes transports the rain water from the rooftops to a designed sump. The sump houses a filter unit. Hence, as soon as the rainwater enters into the sump it first gets filtered and then remains in the sump.
Then with the help of a pump the water can be pumped to an overhead tank for future use. It can be suitability adopted and implemented in new building constructions, houses, factories, schools, etc. Rooftops should be designed keeping in mind rain water harvesting. Roof should be given sufficient slope to drain water. Sufficient number of down pipes should be provided. The downpipe should be preferably of P. as per national building code. and mm pipe for an area of 85 sq. The water should be filtered before collection. A small tank of size 40 cm diameter filled with charcoal and gravel may be used as a filter chamber as shown in the Fig. If the conventional building practice is to build a sump, the same sump can be used for harvesting rain water.
In Bangalore for example, construction of a sump is a common building practice. Collecting rain water after filtration in the sump would be cost effective. If a well or a bore well is present in the premises then rain water can be used to recharge the ground water after filtration. Just below the roof Fig. However, some skill is required in designing such a storage system. On the ground Fig. However, it may restrict movement on small sites as storage occupies space. Below the ground Fig. However, water needs to be pumped up and cleaning of sumps is a necessity. Typically sumps are the most favoured solution. Harvested rain water can be used for non-potable purposes like gardening, bathing, flushing and washing clothes. Can also be used for potable purpose only after ensuring quality and when there is no alternative source or the alternative source is contaminated.
In this method the first and foremost requirement will be to keep the paved surfaces clean. The contour map of the locality is studied and the point having the least contour value is then selected. Then a network of drains will carry the rain water from the point to the storage facility. The slope of the pavement is also a crucial factor in the collection process. In this method check dams are constructed in areas where availability of water is scanty from surface and sub-surface sources. Check dams are small barriers built of sand or stones across the direction of water flow on shallow rivers and streams during the periods of excess water flow. During monsoon periods these retain the excess water in a small catchment area, thus satisfying the water requirements and replenishing the ground water table.
Essay 5. Purposes of Rainwater Harvesting: i. Rain water is a natural source, which is presently being wasted. Rain water technique can be effectively used to prevent the water-logging of low-lying areas or in other words for flood control. Owner-operated and managed. Reduced dependence on external sources such as bore wells tankers. Essay 7. The best way to recharge groundwater level in natural way is to store rain water. However, due to decrease in the intake of rain water from the ground, increasing the level of urbanization and the development of the cities, the level of ground water is decreasing every day. With the lack of use of underground water in rain water harvesting, there is always a way to maintain its level in the future.
It is very important for supply of water demand for different purposes for the drought affected areas of India and other countries. From the following points it will become clear why store rain water:. Rain water can be collected better by using the following methods, such as avoiding surface and roof water or avoiding wastage. In both ways, it helps in increasing the ground water level, as well as helps in an affordable and easy water supply system to meet various needs. Rainwater harvesting is to collect and collect rain water through natural resources and artificial design resources to cater to the shortage of water in the future and to stop the water flowing.
The amount of water harvesting is affected by many factors like the probability of rainfall, the amount of rainfall, the method of collecting rain water and the size of the resources to collect water. There are many reasons, such as deforestation and ecological imbalance, the level of ground water is decreasing. Due to urbanization and industrialization in urban areas, demand for water supply is increasing. The reason for this is the use of excessive groundwater which is going downwards. If no immediate action is taken immediately, then the danger of water shortage will increase in the future and it can prove to be a threat to life. Water harvesting is very useful to meet various needs like recharge of ground water, reducing the electricity bill spent in supplying water and supplying simple water at any time whenever it is required.
It has been assessed that the increase in water level of 1 meter will save the power of 0. Collection of rain water is very important for people of all areas. It is very good to finish the fear of water shortage in the future. Understanding the following points will help why rainwater harvesting is needed:. Collecting rain water from the surface is very effective and traditional technique. These small ponds, underground tanks, dams, dams etc. can be used. However, recharge of ground water is a new method of storage. By well charging, excavator, crater, ditch, hand pump, can be opened by digging well. Dear Reader, My name is Manisha Dubey Jha. I have been blogging for 3 years and through the Fast Read. in I have been giving important educational content as far as possible to the reader.
Hope you like everyone, please share your classmate too. As a literature person, I am very passionate about reading and participating in my thoughts on paper. So what is better than adopting writing as a profession? With over three years of experience in the given area, I am making an online reputation for my clients. If any mistakes or wrong in the article, please suggest us fastread. ait gmail. Essay on Rain Water Harvesting Feed by sandy Cat- Essay. Essay on rain water harvesting words Rainwater Harvesting is a technique that is the process of saving and collecting rain water through the use of various means of various resources such as agriculture etc.
Essay 2 on rainwater harvesting words In the same place where it falls on the roof or on the ground, man water or other natural resources collects rain water such as ponds, lakes, etc. The following benefits of accumulation of rain water at individual or city level are as follows: This water supply bill generally reduces the bills of institutions. By reducing the quality of ground water by reducing fluoride, nitrates and salinity, rain water is recharged in the ground. This is almost neutral pH and zero stiffness which is suitable for more use in homes, industries, institutions and other commercial establishments.
This can reduce the concern of public water supply sources. Due to the recharge of rain water from the ground, sea water dip into fresh water sources in the coastal areas. This helps in urban flood control if people collect rainwater from the roofs. This will reduce the demand for water from the municipality, thereby reducing the energy cost of water distribution across the city. Essay 3 on rainwater harvesting words Rain water harvesting ie natural water storage or man-made tank rain water is to be collected. The following benefits have been collected for rain water: In order to reduce water supply loads and power bills of municipality, improve water supply for free, it helps in crop production in rural areas, thereby increasing food security.
Rain water harvesting system helps in reducing domestic or personal insecurity in rural areas. It provides easy and low cost water supply in low-water areas, which helps in food security and income generation. Essay 4 on rainwater harvesting words Every drop of rain on the earth is like the blessings of God for the people. Essay on rain water harvesting words In today's days, people rely on the government system of supply of water for all water needs. From the following points it will become clear why store rain water: It plays a major role in protecting the water level by falling from the ground and helps to improve it. It helps in improving water quality in water quality level. It prevents the surface water from flowing during monsoon and preserves more water.
This helps reduce soil erosion.
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