groundwater recharge methods ppt

The cookie is used to store the user consent for the cookies in the category "Performance". 2 nd International Conference Graz October, 10 th 2012 Techniques to save water quantity PP5 (LCA) PPs: LCA, LfULG, RNA.

Academia.edu uses cookies to personalize content, tailor ads and improve the user experience. stream The PowerPoint PPT presentation: "Water Harvesting for Groundwater Recharge" is the property of its rightful owner. "width": "1024" As per the method of construction and their suitability for different topographic conditions farm ponds are classified into three categories such as excavated farm ponds suited for flat topography, embankment ponds suited for hilly and ragged terrains and excavated cum embankment type ponds. Have a look at the Case Studies page on the website. Idea has been around since early civilization, Desert dwellers smoothed hillsides to increase, Also included collection from rooftops and, There has been an increasing interest in the, Groundwater is a more favourable source of water, It provides ready made storage reservoirs, It helps reduce the problems of evaporation, It helps keep saline waters from intruding, It helps to prevent subsidence of the ground, Artificial recharge of groundwater as define by, The planned human activity of augmenting the, 2 main techniques have been described for, Estimates have been suggested that the planting, The construction of water harvesting devices, Include the use of both floodwater and rainfall, Increasing surface runoff into storage/collection, Increasing infiltration into the aquifer along, Use of engineering structures to collect and pump, There are several methods by which floodwater, These are amongst the cheapest and most widely, Temporary structures constructed from locally, Aim to impede the soil and water removed from the, Cheap to construct costing approx. }, 6 Other legislation, like that relating to mining activities or heritage sites may also be applicable. startxref "description": "Artificial recharge can be implemented virtually everywhere where groundwater is being used or being planned for use. This website uses cookies to improve your experience while you navigate through the website. 0000000016 00000 n "description": "Does artificial recharge work", This will help in semi-arid zone regions especially in upper reaches where the ground water velocity is high. "width": "1024" "contentUrl": "https://slideplayer.com/slide/14894627/91/images/4/What+is+artificial+recharge.jpg", Presentation to Parliamentary Portfolio Committee, 14 September GROUNDWATER AS A COMMUNITY WATER SUPPLY SOURCE MR BONIFACE ALEOBUA DEPARTMENT OF. 207 13 0000002885 00000 n Pressures created in the catchments area send the impounded water into the ground. "width": "1024" { Have a look at the AR Potential page on the website. Other time-series data to start collecting is the quality, reliability and volume of water available for recharge, and groundwater abstraction from the aquifer.

What is artificial recharge?Artificial recharge is the process whereby surface water is transferred underground to be stored in an aquifer. Thank you! Electronic data loggers are easy to use and affordable start collecting data! Areas potentially suitable for artificial recharge have been identified using a GIS process and are presented on WMA-scale maps. "description": "Does artificial recharge work", "name": "What you need to know about artificial recharge", Presented by Ralf Topper, CPG 30 th Colorado Water Workshop July 28, 2005. This will give you a good indication of the aquifer\u2019s potential to accept water. %PDF-1.4 % The methods are: 1. Does artificial recharge work? In such situation artificial recharge systems such as pits and shafts could be effective in order to access the dewatered aquifer. By exploiting more ground water in upper reaches more surface water can be utilized indirectly, thereby reducing inflow into lower reaches of supply. The most common case of check dams is to decrease the slope and velocity of a stream to control erosion (Fig. Castle Lake. These cookies track visitors across websites and collect information to provide customized ads. 'Hd }~{lxa>pS{'?. [vmq(C#'-}>z. the collection and storage of any farm waters. }. Other legislation, like that relating to mining activities or heritage sites may also be applicable. 0 The most common methods used involve injecting water into boreholes and transferring water into spreading basins where it infiltrates the subsurface. x}^U!zyK(B?8@{>jM&% Account Disable 11. Conjunctive use and conjunctive management.. Physical / Chemical Interaction water balance / quality implications System Dimensions: time / flow. By using our site, you agree to our collection of information through the use of cookies. Environmental authorisation will also be needed where project activities trigger a basic assessment or full EIA in terms of NEMA (2010) regulations. Selection of location of farm ponds depend on several factors such as rainfall, land topography, soil type, texture, permeability, water holding capacity, land-use pattern, etc. "description": "To use natural sub-surface storage as part of Integrated Water Resource Management wherever technologically, economically, environmentally and socially feasible. Image Guidelines 4.

"@type": "ImageObject", In this method construction of small drains along contours of hilly area are done so that the runoff in these drains are collected in a cistern, which is located at the bottom of a hill or a mountain. "contentUrl": "https://slideplayer.com/slide/14894627/91/images/13/Thank+you.jpg", ", }rHw(ianfZ[="P$P0 Other time-series data to start collecting is the quality, reliability and volume of water available for recharge, and groundwater abstraction from the aquifer. More permanent dams constructed using stones, This is a dam built on permeable ground so that, More permanent and larger than check dams, Constructed by excavating a depression to form a, Cost is estimated to be approx. 14.2). Lecture notes on artificial recharge. Examples of feasibility studies and case studies taken to project readiness state can be found in Potential Artificial Recharge schemes: Planning for Implementation on the website.

You can download the paper by clicking the button above. "@context": "http://schema.org", %PDF-1.3 Water saving potential in agriculture in Europe Findings from the existing studies and application to case studies A study being conducted for DG ENV by. All Artificial recharge schemes need to be licensed. Have a look at the Implementation check-list page on the website. Posters, presentations, reports, web links. "description": "Artificial recharge is the process whereby surface water is transferred underground to be stored in an aquifer. The most common methods used involve injecting water into boreholes and transferring water into spreading basins where it infiltrates the subsurface. Content Filtration 6. "@context": "http://schema.org", Plagiarism Prevention 5. US 5,000-10,000, Enough to irrigate 4-6 ha of irrigated dry crop, Structures that intercept or obstruct the natural, Often built within river beds to obstruct and, Used in many areas such as India, Africa and, Dam reduces variation of the level of the, Sand and silt particles transported in floodwater, Constructed in layers to trap the sand with each, Material used must be impermeable for the, Dam must be strong enough to withstand the build, Aquifer should be confined beneath to prevent, Excavations made parallel to contours on slopes, Stone barriers built across gullies and deep, Traps sediment eroded from higher up slope and, Relatively easy to construct, operate and, Direct sub-surface recharge technique conveying, Concerns that groundwater may get contaminated. "contentUrl": "https://slideplayer.com/slide/14894627/91/images/9/Criteria+for+success+The+Success+Criteria+are+described+in+DWA%E2%80%99s.jpg", }, 4

"@type": "ImageObject", Ditches 4. <> "name": "Artificial Recharge Vision", Shafts may be circular, rectangular or square cross-section and may be back filled by porous materials. US 200-400. Report a Violation 10. }, 11 Recharge. Copyright 9. "@context": "http://schema.org", Artificial Recharge VisionTo use natural sub-surface storage as part of Integrated Water Resource Management wherever technologically, economically, environmentally and socially feasible. "@type": "ImageObject", Then you can share it with your target audience as well as PowerShow.coms millions of monthly visitors. | Groundwater, Advantages and Disadvantages of Water Tanks, Ground Water Recharge and Its Methods | Geography, International Tourism in India: Introduction, History, Trends, Opportunities and Future, Forestry: Definition, Branches, Costs, Programme and Conclusion | Geography, Contribution of Russia to World Geography (In Hindi), French Scholars and their Contribution to Geography in Hindi. Subsurface Dams 7. ", It can augment supplies on a large scale such as in Atlantis near Cape Town, or Windhoek in Namibia, or it can be used to boost single borehole schemes like at Kharkhams in Namaqualand, or for irrigation supplies for individual households such as in Hermanus in the Southern Cape. To use this website, you must agree to our. { <<423a8b9069665747b09b2ccd53f20bf3>]>> "@type": "ImageObject", FINANCING CITY GOVERNMENT SERVICES IN SOUTHERN AFRICA CITIESNETWORK WORKSHOP 26 MAY 2011 Presented By: RM Gertze Strategic Executive: Finance And Piet. "width": "1024" "width": "1024" ", "@context": "http://schema.org", Typically an artificial recharge project would include these activities that require authorization: Abstraction of the source water from a water resource (DW760 NWA Section 21a), Re-abstracting the water from the aquifer (DW760 NWA Section 21a). 0000000556 00000 n Necessary cookies are absolutely essential for the website to function properly. Recharge rates in both shafts and pits may decrease with time due to accumulation of fine-grained materials and the plugging effect brought by microbial activity. The ditches could terminate in a collection ditch designed to carry away the water that does not infiltrate in order to avoid ponding and to reduce the accumulation of fine materials. Content Guidelines 2. A ditch is described as a long narrow trench, with its bottom width less than its depth. Whatever your area of interest, here youll be able to find and view presentations youll love and possibly download. This water is used for irrigation or for drinking purpose and the water is of good quality. In this case the historical wells act as a recharge well so that ground water can be improved. "width": "1024" A check-list for implementing successful artificial recharge projects. Recharge wells are suitable only in areas where thick impervious layer exists between the surface of the soil and the aquifer to be replenished. Recharge Wells 5. The rate of recharge has been being found to increase as the side slope of the pits increased. Groundwater. This form specifically requests information about the receiving water resource and the quality of the discharge. We also use third-party cookies that help us analyze and understand how you use this website. For effective recharge highly permeable soils are suitable and maintenance of a layer of water over the highly permeable soil is necessary. 5 0 obj PROMOTING A COORDINATED GROUNDWATER MANAGEMENT FOR LAGOS STATE: WAY FORWARD By PROFESSOR E.O. "width": "1024" Water scarcity is becoming an increasing problem, In 1997 it was reported that 80 of countries, Main reason due to a shift in water management, Individuals/communities have given over the role, Increasing exploitation of rivers and groundwater, However, it is generally believed that enough, Use of water harvesting to capture the water that, Term was 1st used by the Australian HJ Geddes to. Workshop on ACTION RESEARCH ON GROUNDWATER BUFFERING IN BANGLADESH. Electronic data loggers are easy to use and affordable \u2013 start collecting data! A check-list for implementing successful artificial recharge projects. %%EOF This presentation was developed as part of rolling-out DWAs Artificial Recharge Strategy, which formed part of DWAs project Strategy and Guideline Development for National Groundwater Planning Requirements (DWA Contract No. Water Banking \u2013 A practical guide to using Artificial Groundwater Recharge. }, 8 Thank you ",

{ When direct discharge is practised the amount of water entering the aquifer depends on three factorsthe infiltration rate, the percolation rate, and the capacity for horizontal water movement. ", ", { "contentUrl": "https://slideplayer.com/slide/14894627/91/images/5/Does+artificial+recharge+work.jpg", Water Banking A practical guide to using Artificial Groundwater Recharge. The presentation was developed by Dr Ricky Murray, Groundwater Africa. To browse Academia.edu and the wider internet faster and more securely, please take a few seconds toupgrade your browser. Pathleen Titus CARDI Representative , St Kitts and Nevis. The phased approach to the groundwater monitoring programme for the Drini River Basin. Have a look at the. "description": "What you need to know. The best advice you can give anyone who is considering artificial recharge is to start monitoring groundwater levels immediately. Where can artificial recharge be implemented?Artificial recharge can be implemented virtually everywhere where groundwater is being used or being planned for use. "contentUrl": "https://slideplayer.com/slide/14894627/91/images/6/Does+artificial+recharge+work.jpg", page on the website. xref A layout for a ditch and flooding recharge project could include a series of trenches running down the topographic slope. Recharge Pits and Shafts 3. Have a look at the Case Studies page on the website. &`n)VmG`+VS;-Q!E@d(t,yqt$7ZOwk9e-u`hK}N-\06r/-lbt>=kIb|Ww./Rb]mf\UXRG'~SKoo\l\stIV$OfoV]ywsO_z-;K;l>5>Kl]ke;O>hU:X%.y^nMk_'*!1P';8dOgIz'jT9GK\?*~/\ 8|}C-B1pXxA*\x7aoC,+Ri`xxN:p?C(c. Home Page of the website .and the booklet. Water Banking \u2013 A practical guide. General Overview of Integrated Hydrological Planning (IHP) New sub-directorate Natural Hydrology; both groundwater and surface water Interaction between. Our Water, Our Resource, Our Responsibility Module 2: Water Management Unit 3: The Local Authority - Whats happening? Criteria for success The Success Criteria are described in DWAsArtificial Recharge Strategy (Version 1.3) on the DWA AR Strategy page on the website. "width": "1024" Disclaimer 8. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The presentation was developed by Dr Ricky Murray, Groundwater Africa. They are also summarised in the booklet. }, 13 Water Discharge (into a water resource): DW766 NWA Section 21f. Recharge or injection wells are used to directly recharge the deep-water bearing strata. Conditions that permit surface flooding methods for artificial recharge are relatively rare. PowerShow.com is brought to you byCrystalGraphics, the award-winning developer and market-leading publisher of rich-media enhancement products for presentations. Underground water storage is an efficient way to store water because it is not vulnerable to evaporation losses and it is relatively safe from contamination. 0000003407 00000 n }, 9 Clogging of the well screen or aquifer may lead to excessive buildup of water level in the recharge well. The Atlantis Water Resource Management Scheme: 30 years of Artificial Groundwater Recharge. 0000004001 00000 n rVXMw"Z&*'Y`*TReHup-4i=wq`q_g!J- (Ap ;g[WL2S +8Tvz4N:S6sVX[Womvku`^-zO`^+Vu;[oLLvX>mca7+Ltqx:R7i~jrR7m~s^^M'S_I')/%Pj$O2^iw aoc{g{bnMm IP%1CYlovjWa:vwD &k[e:|g/iuk,BO8y};4vx.m-:!3R=~Q G^$@' Other DWA Resources available on the websiteArtificial Recharge Strategy: Version 2. { The most common methods used involve injecting water into boreholes and transferring water into spreading basins where it infiltrates the subsurface. Ground water moves from higher-pressure head to lower one. "width": "1024" WP 9390). Lecture notes on artificial recharge. Academia.edu no longer supports Internet Explorer. { If any historical wells are located near the streamlet, then allow the water into the well from streamlet by connecting drains. All Artificial recharge schemes need to be licensed. The cookies is used to store the user consent for the cookies in the category "Necessary". Artificial Recharge Strategy (Version 1.3) on the DWA AR Strategy page on the website. This will give you a good indication of the aquifers potential to accept water. Water cycle Recreation Industry Agriculture Aquatic Ecosystem Streamflow reduction activity Irrigation with waste Industrial discharge Impeding the flow. "contentUrl": "https://slideplayer.com/slide/14894627/91/images/11/Start+monitoring+now%21.jpg", Prohibited Content 3. 0000001277 00000 n Geology, Groundwater Recharge, Methods of Groundwater Recharge, Rainwater Harvesting. Typically an artificial recharge project would include these activities that require authorization: Abstraction of the source water from a water resource (DW760 NWA Section 21a) Storing of water (DW762 NWA Section 21b) Re-abstracting the water from the aquifer (DW760 NWA Section 21a) In addition, if the intention is to recharge with waste water, one or both of the following would apply: Waste discharge (controlled activities): DW765 NWA Section 21e, although this form is mainly geared to irrigation using waste. PowerShow.com is a leading presentation sharing website.

"contentUrl": "https://slideplayer.com/slide/14894627/91/images/3/What+you+need+to+know+about+artificial+recharge.jpg", "contentUrl": "https://slideplayer.com/slide/14894627/91/images/8/Have+a+look+at+the+AR+Potential+page+on+the+website..jpg", "description": "Artificial Recharge Strategy: Version 2. They are also advantageous in areas where land is scarce. }, 12 Underground water storage is an efficient way to store water because it is not vulnerable to evaporation losses and it is relatively safe from contamination. This article throws light upon the top nine methods of groundwater recharge. ", Dr. R.P.Pandey Scientist F. NIH- Nodal Agency Misconception: A DSS takes decisions ---(No). "@context": "http://schema.org", But opting out of some of these cookies may affect your browsing experience. A relatively high rate of recharge can be attained by this method. % Unfiltered runoff water leaves a thin film of sediments on the sides and bottom of the pits, which require maintenance in order to sustain the high recharge rates. "contentUrl": "https://slideplayer.com/slide/14894627/91/images/1/Artificial+Groundwater+Recharge%3A.jpg", It can augment supplies on a large scale such as in Atlantis near Cape Town, or Windhoek in Namibia, or it can be used to boost single borehole schemes like at Kharkhams in Namaqualand, or for irrigation supplies for individual households such as in Hermanus in the Southern Cape. It's FREE! surface features, Important that the system is managed properly, Groups of locals need to be put in charge of the, Contaminate water already stored in the aquifer, Lower the value of the water (drinking water), Water quality problems from rooftop harvesting, If planned and managed properly can be a great, Recharged more effectively with little high-tech.

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