What is artificial groundwater?
Artificial Groundwater recharge also called planned recharge is the process of filling the aquifers beneath the earth through manual procedures. The water available in excess above the surface of the earth is made to seep through the ground to store it for times of shortage.
What is artificial discharge?
Artificial recharge is the process of spreading or impounding water on the land to increase the infiltration through the soil and percolation to the aquifer or of injecting water by wells directly into the aquifer. Surface infiltration systems can be used to recharge unconfined aquifers only.
What are the methods of artificial recharge of ground water?
Four types of source water may be available for artificial recharge viz. (i) Insitu precipitation on the watershed. (ii) Surface (canal) supplies from large reservoirs located within basin (iii) Surface supplies through trans basin water transfer. (iv) Treated municipal and industrial wastewaters.
What are the advantages of artificial recharge of groundwater?
Advantages of Artificial Recharge Groundwater recharge stores water during the wet season for use in the dry season, when demand is highest. Recharge can significantly increase the sustainable yield of an aquifer. Recharge methods are attractive, particularly in arid regions.
Where is groundwater discharge?
Under natural conditions, ground water moves along flow paths from areas of recharge to areas of discharge at springs or along streams, lakes, and wetlands. Discharge also occurs as seepage to bays or the ocean in coastal areas, and as transpiration by plants whose roots extend to near the water table.
How groundwater is recharged?
Processes. Groundwater is recharged naturally by rain and snow melt and to a smaller extent by surface water (rivers and lakes). Recharge may be impeded somewhat by human activities including paving, development, or logging.
What is artificial ground?
Artificial ground is the term we use for those areas where the ground surface has been significantly modified by human activity.
What is importance of artificial recharge?
The main objective of artificial recharge is to store excess water in underground aquifers during times of surplus that can be recovered during periods of water scarcity. Hence, artificial recharge can be compared to “water banking” and is often also referred to as “Aquifer Storage and Recovery (ASR)”.
Why is artificial recharge important?
Artificial recharge provides a tool to maintain or increase reliable water supplies. In some areas, agriculture and other uses have resulted in serious groundwater depletion. AR is important in these locations as a means of stabilizing the supply and sustaining withdrawals by wells.
What are the advantages and disadvantages of using groundwater?
The advantages of withdrawing groundwater include water for drinking and irrigation; availability and locality; low cost, no evaporation losses; and it is renewable. Disadvantages include aquifer depletion from over pumping, subsidence, pollution, saltwater intrusion, and reduced water flow.
Why artificial recharge of ground water?
Why Artificial Recharge In most low rainfall areas of the country the availability of utilizable surface water is so low that people have to depend largely on ground water for agriculture and domestic uses. So in order to improve the ground water situation it is necessary to artificially recharge the depleted ground water aquifer. 10.
What is groundwater?
Ground water 1)Groundwater is the underground water which occurs in the saturated zone of earth surface. 2)Cracks and pores in existing rocks makes this ground water reservoir. 3)Ground water utilized through wells and tube wells. 4. WATER SCENARIO IN 2025 TODAY AND BEFORE 5.
What are the different methods of groundwater recharge?
B.Sub – Surface Method In this method the structure lies below the surface and recharges ground water directly. The important structures commonly use are recharge wells, recharge shaft, dug wells etc 19.
What are the methods of artificial recharge?
Methods Of Artificial Recharge Artificial recharge is the process by which the ground water is augmented at a rate much higher than those under natural condition of replenishment. The techniques of artificial recharge can be broadly categorized as follows: 9.