Rainwater harvesting is an important and efficient way to save water. Rainwater harvesting is sustainable, economical and safe source of good quality water if collected and stored in right way. Rainwater harvesting is an easy and economical way to deal with this crisis. This is particularly true of the roof that is subject to the oxidizing affects of sun and air borne pollutants. In South Africa, a country whose government is fundamentally structured on the ideals of democracy, one in two women is victims to rape and sexual assault. People are not only dying of thirst but also of diseases caused by water due to the water crisis.
This conserved water is lifted up with the help of deep or shallow tube- wells to be used as drinking water or to be used in agriculture. Water collected from roof tops, courtyards and similar compacted or treated surfaces is used for domestic purpose or garden crops, or for groundwater recharge. 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. When you see the water scarcity in many parts of the world, collecting rain water would be a great technique. Since rainwater is already evaporated, it negates the collected water to undergo any further treatment as the concentration of contaminants in it reduces significantly. It is preferable to use the stored water for purposes like gardening, flushing, bathing, augmenting storage for fire-fighting etc and even for utilities after necessary treatment If it is to be used for drinking purposes it should be used after boiling or disinfecting with chlorine tablets or after filtration. One such method is harvesting rainwater.
Rainwater harvesting is an economical and easy way to handle such situation of crisis. We are providing you the necessary information about Rainwater harvesting. Now that you have answered these two questions you can brainstorm the content and structure for your speech. Speech on Rainwater Harvesting 3 Hello Friends — Warm Greetings to everyone and I, Samaksh Dutt, welcome you all to this awareness program on Rainwater Harvesting! This method of rainwater harvesting can considerably bring down the use of main water sources. This water can be used for household work like cooking, drinking, sanitation. After launching the scheme in 2011, in the 5 years, Chennai the rise in water level by 50%.
As people are becoming environment conscious, the method of rainwater harvesting is gaining a huge momentum thereby making eco-conservation and fair utilization of natural resource possible. On the other hand, in areas where the total annual rainfall occurs only during 1-2 months, the water collected during the monsoon has to be stored throughout the year, which requires huge volumes of storage containers as well as some treatment processes. It can be stored for long time for the household purposes like gardening, livestock, and irrigation, etc. They are nothing, but big plastic containers for storing water from one drainage pipe or via natural rainfall and are mostly maintained in the house for use in garden to water the plants. 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 helps in rejuvenating the groundwater levels in both directly and indirectly manner. Rain Water is void of chemicals which makes it the best water for landscape irrigation.
Having sorted these three out, you can then start on your speech proper. Potential cost savings associated with rainwater collection systems. Local erosion and flooding from impervious cover associated with buildings is lessened as a portion of local rainfall is diverted into collection tanks. Over extraction of ground water in coastal areas may result in seawater intrusion into the aquifers. You can also use the stored water for agricultural purpose and feeding your livestock. Maintaining The system is not so tough.
The new techniques are also being introduced. Excessive dependency on climate as well as tank size is not right and so rainwater harvesting can help reduce the burden drastically on the main sources of water. Water, the most precious natural resource, is depleting quickly. Nearly 4,000 temples in the state of Tamil Nadu traditionally maintained water tanks which were used for different rituals. For larger applications, the Rainwater Connection supplies and installs steel polypropylene-lined cisterns 4,000-30,000 gallons that are made of culvert steel, structurally engineered, and easily transportable to most sites.
It is recycled from the industrial waste. Rainwater harvesting involves the collection and storage of rainwater into the natural reservoirs or artificial reservoirs in order to prevent the surface water runoff. Another way of using rooftop rainwater harvesting is to collect it so that it percolates into the ground to recharge wells instead of flowing over the ground into rivers. Today most of the countries of the world are facing the scarcity of water and are taking up rainwater harvesting for the dire necessity of survival. It can be done using small ponds, underground tanks, dams, weirs etc. Rainwater collected from rooftops is free of mineral pollutants like fluoride and calcium salts which may be found in groundwater.
It is one of the purest form of water found on earth, because it is collected after it has vaporized and is almost as good as distilled water. Rainwater Harvesting in India India has the regions with more than average rainfall, so rainwater harvesting can be the best way to reuse the rainwater. The farmers are the most affected because they do not get sufficient water for their fields. It is very important topic on which students may be assigned to write essay or paragraph on the rain water harvesting. With Rain Water Harvesting, you can understand the importance of water conservation and energy conservation.