Rainwater harvesting seminar and ppt with pdf report. Thank you there are only 62 trillion litres 320 trillion gallons of water on planet earth. Some part of the precipitation that lands on the ground surface infiltrates into the subsurface. Objectives identification, delineation and study of micro watersheds and traditional rain water harvesting structures in the mulki river basin for sustainable development. Water level in wells in the past 3 years location may 2001 may 2002 may 2003 dasanapura 16. The main purpose of ground water dam is to arrest the flow of ground water out of the subbasin and. Both of these are common ways we get groundwater to drink. Project synopsis on identification, delineation and mapping. Rainwater harvesting and ground water recharging in gcoeara. City of tucson water harvesting guidance manual 1 introduction what is water harvesting. Aquifers can also receive water from surface waters like lakes and rivers.
Many of these documents are freely available to download. The part that continues downward through the soil until it reaches rock material that is saturated is groundwater recharge. Ground water harvesting has become more prolific in recent years, due mostly to a public push toward conservation and green living. Handbook of ground water development table of contents i 1water in the ground 1 geologic formations as aquifers 3 1. Guidelinescriteria for evaluation of proposalsrequests.
The augmented resource can be harvested in the time of need. About 50 percent of our municipal, domestic, and agricultural water supply is groundwater. Presented by rajesh kumar gupta suraj kumar vishwakarma 2. Rainwater harvesting seminar report, ppt, pdf for civil. When rain water harvesting measures are essential when the ground water is brackish or has a high iron or flouride content. Advantages and disadvantages of ground water 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. Water harvesting helps smooth out variation in water availability by collecting the rain and storing it more efficiently in closed stores or in sandy. The purpose of the threepronged approach is to increase sustainability and management efficiency in the use of agricultural water resources in rural areas.
Rain water harvesting free download as powerpoint presentation. Rainwater harvesting is a way to capture rain water at the time of the downpour, store the water above the ground or download the underground water and use later. Rainwater harvesting is the practice of collecting the water produced during rainfall events. Aquifers get water from precipitation rain and snow that filters through the unsaturated zone. The archive is a searchable database of published and unpublished groundwater literature about africa, including reports, journal articles, conference papers and maps.
Draft project proposal on rainwater harvesting at nit campus. Although these terms may be useful when speaking metaphorically about ground water, they are far from accurate. 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. In saline or coastal areas, rainwater provides good quality water and when recharged to ground water, it reduces salinity and helps in maintaining balance between the freshsaline water interfaces. Rainwater harvesting can significantly reduce water extraction rates from rivers during critical summer months, ensuring adequate water remains to support native ecosystems. The water handbook is the result of wide collaboration within unicef, and provides a broad overview of stateoftheart programming. 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 in the areas of regular rainfall, the perfect alternative to overcome the water. Groundwater is a part of the natural water cycle check out our interactive water cycle diagram. Introduction to water harvesting free download as powerpoint presentation. Need, methods and other details water is an important natural resource and is the very basis of our life. The water from the tubewellborewell will be used exclusively for. Groundwater is stored in the tiny open spaces between rock and sand, soil, and gravel.
Inground first flush diverter rain harvesting by blue. Due to over population and higher usage levels of water in urban areas, water supply agencies are unable to cope up demand from surface sources like dams, reservoirs. Opportunities lie in the government buyin and the knowledge gathered during over 15 years of rwh research. Handbook of ground water development preface there has been a longstanding need for a comprehensive book on ground water development. The water from the tubewellborewell will be used exclusively for drinking and domestic purposes only within the premises.
Presently, shri vivekananda research and training institute svrti, under the guidance of k c b raju is involved in constructing groundwater dams in kutch district of gujarat. Rainwater harvesting for domestic use journey to forever. Water harvesting is the process of intercepting stormwater runoff from a surface e. Rain water harvesting can be effectively implemented in. In 2001, tamil nadu was the first state that mandated rainwater harvesting for every building. Rainwater harvesting the provision of the storage tank is the most costly element of a rainwater harvesting project, usually about 90% of the total cost. Ground water dykes subsurface dykes subsurface dyke is a barrier impermeable to water, placed underground to control the groundwater flow in an aquifer, and to raise the water table also known as ground water dams 4. The lack of sufficient texts may be because the industry is highly fragmented, and a number of. Also in various districts of rajasthan, rainwater harvesting practice has brought relief to many crops as well as the people.
Assessment of best practises and experience in water harvesting. Rain water harvesting techniques to augment ground water. At the same time the rain water is not being conserved which ultimately goes waste. Rainwater harvesting has been practiced for more than 4,000 years, owing to. Provide power to panel, connect poc for supply line to tank and poc to discharge. While the rainwater harvesting system investigate a new. 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. Challenges are the water related legislations, inadequate financial support and the lack of national coordination. A free powerpoint ppt presentation displayed as a flash slide show on id. The water handbook is the result of wide collaboration within unicef, and provides a broad overview of stateoftheart programming for water management, protection and supply. Runoff may be harvested from roofs and ground surfaces as well as from intermittent or ephemeral watercourses. The publishers and the rainwater harvesting implementation network rain are pleased to present this longawaited agrodok on rainwater harvesting rwh for domestic use that supplements agrodok no. To this end, the project pilots a threepronged, communitybased approach, combining water harvesting, conjunctive use of groundwater and surface water, and solar power for lifting irrigation. Rainwater that is not captured directly, used by agriculture, or absorbed into the ground becomes surface water.
Increase the underground water level and decreases the ground water pollution. Rain water harvesting pdf advantages,techniques,examples of. Rainwater harvesting and ground water recharging in gcoeara campus written by waghmare prasad shivaji, devde mangesh ranjendra, band nayan arun published on 20190910 download full article with reference data and citations. We use water for drinking, irrigation, industry, transport and for the production of hydroelectricity. Assessment of best practises and experience in water. The ground water level significantly improved after implementation of rainwater harvesting systems in chennai as much as 50%. Technical details of rainwater harvesting 2 rooftop rainwater harvesting system what is rainwater harvesting. Even the ground water is prone to adverse effect of salt water intrusion which affects the crop yield in the coastal areas.
Comparison of groundwater use with total water use in the united states, 1995 total water use in bgald 40 9 4 26 2 341 209 groundwater 15 6 49 6 1 76 75. Conservation techniques conserve water within the biomass and the soil by reducing runoff and keeping the water where it falls, as much as possible. The rainwater then flows through the gutters, into a collection tank. Most systems utilize our gale force eco series pump station. Unicef programme division is pleased to present the water handbook part of the guidelines series on water, environment and sanitation. Water harvesting techniques, which harvest runoff from roofs or. Water harvesting in its broadest sense can be defined as the collection of runoff for its productive use. Ppt water conservation powerpoint presentation free to. Project synopsis on identification, delineation and. Ground water dams or sub surface dykes a ground water dam is a sub surface barrier across stream which retards the natural ground water flow of the system and stores water below ground surface to meet the demands during the period of need. Water harvesting techniques, which harvest runoff from roofs or ground surfaces fall under. Concentrated water demand in urban areas for various purposes like household. Ground water harvesting is most commonly found in regions of the country where water is scarce or polluted, or where a family lives in a rugged terrain lacking a dense population. This booklet explains how to collect, store and purify rainwater for direct use at household level.
When the aquifer is full, and the water table meets the surface of the ground, water stored in the aquifer can appear at. Intercepted stormwater can be collected, slowed down, and retained. All these methods basically fall under three main categories viz surface water collection ground water collection augmentation of. 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. An assessment of policies, institutions and regulations.
Rain water harvesting pdf advantages,techniques,examples of water harvesting rainwater harvesting is a process involving collection and storage of rain water with the help of artificially designed system that runs off natural or manmade catchment areas e. High to low most popular title manufacturer newest oldest availability. An assessment of policies, institutions and regulations for. To avoid this imbalance, conservation of rain water in the form of rain water harvesting is the only solution. Rainwater harvesting system consists of tank, associated plumbing, and pumping system. The conventional water sources namely well, river and reservoirs, etc. As the groundwater resources are depleting, is the only way the rainwater harvesting to solve the water problem. Rain water harvesting rain environmental engineering. 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.
Water harvesting techniques gather water from an area termed the catchment area and channel it to the cropping area or wherever it is required. In islands, due to limited extent of fresh water aquifers, rainwater harvesting is the most preferred source of water for domestic use. Rain water harvesting measures should begin four months before the monsoon is to arrive. Dec 26, 2017 in 2001, tamil nadu was the first state that mandated rainwater harvesting for every building. Storage can range from small containers made for other purposes, for example oil drums, food cans etc, but used as domestic storage, up to large tanks of 150 cubic metres. This drained water can then be released or used to water your garden. Pdf a project report on rainwater harvesting at amit.
Concurrent with the construction of ground water abstraction structure, the owner of the tubewell shall undertake artificial recharge to ground water through rainwater harvesting in the premises. Highlights we present challenges and opportunities to the upscaling of rainwater harvesting rwh in south africa. Introduction to water harvesting water resources harvest. The central ground water board has sited and constructed a number of subsurface dams in kerala in the 1980s. Water is a cyclic resource which can be used again and again after cleaning. Surface water harvesting includes all systems that collect and conserve surface runoff after a rainstorm or in intermittent streams, rivers, or wetlands for storage in open ponds and reservoirs. The project is based on the procedure of storing the rain water i. Rainwater harvesting is the collection of raindrops.
Ground water is water that fills pores and fractures in the ground, much as milk. Rainwater harvesting and ground water recharging in. It decreases the runoff because it stops or blocks the drain. About 51 percent of the nations population depends on ground water for domestic uses. The first flush inground drains waterfilled pipes in your wet rain harvesting system to prevent anaerobic fermentation and stop fermented water contaminating the rainwater in your tank. Surface water and ground water are two major sources of water. Rain water harvesting pdf advantages,techniques,examples. Guidelinescriteria for evaluation of proposalsrequests for. 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. Rainwater harvesting is an excellent means of supplementing water for use on site if the process is permitted by state andor local laws. 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. The community is heavily affected by hivaids and there are many widows and single occupancy households. Rainwater can also supplement surface water resources threatened by rapidly growing municipal water use.