Unicef programme division is pleased to present the water handbook part of the guidelines series on water, environment and sanitation. There are two main techniques of rain water harvestings. Here, we modified sodium alginate by occupying both g. We use water for drinking, irrigation, industry, transport and for the production of hydroelectricity. The adobe flash plugin is needed to view this content. Rainwater harvesting reduces consumers utility bills. Need, methods and other details water is an important natural resource and is the very basis of our life. Presented by rajesh kumar gupta suraj kumar vishwakarma 2. Rain water harvesting can be effectively implemented in. A water harvesting overview highlighting some of the strategies implemented at the lancaster homestead to harvest street runoff, roof runoff with simple filtration, and greywater.
Rainwater harvesting ppt play ppt play ppt download. Rainwater harvesting in simple words is a process or activity of collection and storage of rain water. Rain water harvesting rain environmental engineering. Powerpoint by stephanie hagan, mary harte, nick incrocci, and andrew schaeffer. Rainwater powerpoint template is a free template for powerpoint presentations with a water rain image photo in the slide design that you can download to use. Perhaps one of the most interesting aspects of rainwater harvesting is learning about the methods of capture, storage, and use of this natural resource. Check out the benefits of the rainwater harvesting. Us rainwater can be used directly in water scarce period by construction of sump and collect the roof top rainwater through filter media.
Conservation techniques conserve water within the biomass and the soil by reducing runoff and keeping the water where it falls, as much as possible. Ppt rainwater harvesting powerpoint presentation free to. Presentations are available on themes, as diverse as umbrella beach, seaworld, and surfing. The government of karnataka, through the rural development and panchayat raj department, has launched a rooftop rainwater harvesting programme for 23,683 schools across the state. Rainwater harvesting is a technology used to collect, convey and store rain for later usage. Introduction to water harvesting water resources harvest. Thus it is important to improve rain water harvesting through technical and financial prospects. Draft project proposal on rainwater harvesting at nit campus by the civil engineering department. Introduction to water harvesting free download as powerpoint presentation.
Runoff may be harvested from roofs and ground surfaces as well as from intermittent or ephemeral watercourses. The programme seeks to provide each student with 1. Its more an issue of the existing functionality of the processes, said shroff. Rainwater harvesting case study construction of household rainwater harvesting jars in uganda wateraid has been working to improve household water supplies in a ugandan village where 3,000 people lack access to safe water. Calculating rainfall volumes calculating rainfall volumes, from volume 1, provides instructions and examples of how to determine how much rain. Rainwater can cause leaky basements, eroded foundations, overflowing sewers, soil erosion, and water pollution. Rainwater harvesting seminar and ppt with pdf report study mafia. Rainwater harvesting for drylands and beyond by brad lancaster. Rainwater harvesting seminar report, ppt, pdf for civil. Rain water harvesting should be pushed through rewards. Visual enhancement suggestions for brad lancasters book, rainwater harvesting for drylands and beyond.
Harvesting rainwater can eliminate these problems while also eliminating the need for expensive stormwater controls. Rainwater powerpoint template free powerpoint templates. The water can be collected from various surfaces such as rooftops and other hard surfaces over which water will runoff. 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. Instructions for site assessment in context pdf file, 2. Recharge the rainwater in a scientifically planned way by construction of rain roof top water harvesting structures to augment the groundwater. Eight water harvesting principles the eight rainwater harvesting principles appear in greater detail of both volumes of rainwater harvesting for drylands and beyond, but can be downloaded here to get you started. Rainwater harvesting is a strategy of collection and storage space of rainwater into natural reservoirs or tanks, or the seepage of surface water into subsoil water channels. Water harvesting model for science exhibition essay how to make a simple working model of rainwater. Waterharvesting video gallery rainwater harvesting for. Rain water harvesting is a technique by which we can conserve the rain water and increase the level of the ground water and securing our future.
Rainwater harvesting is a practice followed by india, pakistan, afghanistan, and iran at 3rd century bc to collect and store rainwater from rooftops, land surface, and more. Improves the quality of ground water through dilution when recharged 5. Ppt rainwater harvesting powerpoint presentation free. The water handbook is the result of wide collaboration within unicef, and provides a broad overview of stateoftheart programming for water.
Ppt rain water harvesting powerpoint presentation, free download. Rainwater harvesting is something that thousands of families across the world participate in, and you could be the next to enjoy the multitude of benefits offered with rainwater harvesting. However, researchers are still searching for optimized desiccants with all of the desired features, such as high water sorption capacity, low desorption temperature, wide light spectrum absorption, ease to scale up, and low cost. Our earth is covered with 75% of water and 25% of land but water scarcity is a global issue because the large extent of water is not used for the domestic purpose, irrigation purpose and one of the solutions for such problem is the rainwater harvesting.
Rainwater harvesting, in its broadest sense, is a technology used for collecting and storing rainwater for human use from rooftops, land surfaces or rock catchments using simple techniques such as jars and pots as well as engineered techniques. Following is a very general introduction to rainwater harvesting. It is an easy, simple and worthwhile process, so it is only in your best interest to take a look at rainwater harvesting and its benefits to your home. Executives pointed out to lack of standard written procedures for construction of check dams or other water harvesting systems by private parties in areas under government jurisdiction. Alternatively, there are plenty of safety measures to be taken to treat waterborne diseases with free water ppt backgrounds. Acknowledgement through the means of powerpoint presentation slides, we students of batch 201115, civil engineering department, manit, have made a small effort to study the employed techniques in the field of rainwater harvesting in iran. Water harvesting techniques, which harvest runoff from roofs or.
Also explore the seminar topics paper on rainwater harvesting with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year civil engineering ce or ieee civil construction btech, be, mtech students for the year 2015 2016. Provides high quality water, soft and low in minerals 4. Fantastic rainwater harvesting system information is available on our website. Rainwater harvesting is an excellent means of supplementing water for use on site if the process is permitted by state andor local laws. Rainwater harvesting ppt and seminar free download. All these methods basically fall under three main categories viz surface water collection ground water collection augmentation of ground water. The catchments and settlement tanks built in the area easily free the spot and the vicinity. Draft project proposal on rainwater harvesting at nit campus.
Ppt rainwater harvesting powerpoint presentation free to download id. Free download water conservation powerpoint presentation. Download free water powerpoint templates to plan your next canoe journey. Super atmospheric water harvesting hydrogel with alginate. This section provides a basic technical description of the two main types of rainwater harvesting systems passive and active and outlines the basic maintenance requirements of.
Assessment of best practises and experience in water. Rainwater harvesting helps utilities reduce the summer demand peak and delay expansion of existing water treatment plants. See brads awardwinning books, rainwater harvesting for drylands and beyond, and elsewhere on this website for more. Rainwater harvesting is the practice of collecting the water produced during rainfall events. Water heaters and pipes will be free of deposits caused by hard water and will last longer. Using rainwater, where appropriate, conserves potable. Rainwater powerpoint template is a free template for powerpoint presentations with a water rain image photo in the slide design that you can download to use in presentations about climate change but also about weather channel or national weather information. Harvesting, storing, and treating rainwater for domestic use chapter 1 introduction rainwater and snowmelt are the primary sources of all drinking water on the planet. Water harvesting in its broadest sense can be defined as the collection of runoff for its productive use. Explore rainwater harvesting with free download of seminar report and ppt in pdf and doc format. Rain water harvesting rain water harvesting is capturing and storing.
Download free powerpoint presentation of water conservation which is used for giving presentation of different topics eg. The project is based on the procedure of storing the rain water i. The catchment of a water harvesting system is the surface which directly. A traditional and green system to preserve the world water resources. The community is heavily affected by hivaids and there are many widows and single occupancy households. Rain water harvesting complete authorstream presentation. Rainpc is developed by scaling down the multistaged water treatment. Atmospheric water harvesting is considered to be a promising technology to address the global water shortage.
Rainwater harvesting is a technology used for collecting and storing rainwater from rooftops, the land surface or rock catchments using simple techniques such as jars and pots as well as more complex techniques such as underground check dams. Water harvesting helps smooth out variation in water availability. Rainwater harvesting is a technique of collecting rainwater and storing it for use. Rainwater from rooftop should be carried through down take water pipes or drains to storageharvesting. View and download powerpoint presentations on rainwater harvesting ppt. Give a talk on marine life with free water powerpoint templates.
Importance of rain water harvesting and future rain water harvesting plays an important role in agriculture useful for urban areas it is important to save the water for the future. Water harvesting techniques gather water from an area termed the catchment area and channel it to the cropping area or wherever it is required. Rainwater harvesting seminar and ppt with pdf report. Find powerpoint presentations and slides using the power of, find free presentations research about rainwater harvesting ppt. Rain water harvesting free download as powerpoint presentation. Rain water s purity also makes it an attractive water source for certain industries for which pure water is a requirement.
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