Contaminant Hydrogeology ENEN90030 CONTAMINATION REMIDIATION LECTURE - 7 Dr. Meenakshi Arora Groundwater contamination • Groundwater Contaminants - Organic contaminants - Inorganic contaminants - Radio nuclides • Contaminant Transport - Conservative - Non-conservative (Retardation and Decay) • Site Remediation - Source Control - Pump and Treat - Sorption - Membrane Treatment - In situ Bioremediation‚ NAPL Recovery - Permeable Reactive Barrier - Contaminated Land Cleanup Dr. Meenakshi Arora
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in medical research in the country example: Sankara Nethralaya‚ Chennai. The company has started a project named “Saraswati” through the collaboration of Indira Gandhi Nahar Pariyojna. The scope is to Recharging available ground water aquifers through rainwater harvesting and canals‚ Conjunctive use of ground / surface water Mixing of Saline ground water with canal water to augment supply‚ Desalination and deflouridation of contaminated ground water. ONGC had participated
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The Ecology of HOLLYWOOD 1 Los Angeles is an unlikely city. Built over a major seismic fault‚ on the edge of one of the world’s most inhospitable deserts‚ the city has developed like the extension of a Hollywood movie set‚ a sprawling urban fantasy which many people feel should not really exist. Scientists have estimated that the land and water in the area could naturally support 200‚000 people‚ not the 15 million that live there. 2 Since the 1880s‚ Los Angeles has been transformed from a sleepy
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S. K. GUPTA Scientist ‘D’ Central Ground Water Board Western Region‚ Jaipur Rain water harvesting and Artificial recharge of ground water Rainwater harvesting is the technique of collection and storage of rain water at surface or in subsurface aquifer‚ before it is lost as surface run off or as evaporation. The artificial recharge to ground water is a process by which the ground water reservoir is augmented at a rate exceeding that under natural conditions of replenishment utilizing suitable civil
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In general‚ shallow‚ permeable water table aquifers are the most susceptible to contamination‚ but susceptibility of all aquifers to contamination is determined largely by such site-specific characteristics as: * distance from the contamination source to the aquifer and residence time of the water in the unsaturated zone; * presence of clay and organic matter in the unsaturated zone materials;
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WATER SYSTEM MASTER PLAN 11. STORAGE CAPACITY EVALUATION The District uses water supplied from both storage and wells to help meet peak demands. In this section District operational‚ emergency‚ and fire storage criteria is reviewed. Pumping and storage facilities are evaluated and sized to meet the District’s requirements under demand conditions including maximum day‚ maximum day plus fire flow‚ and peak hour. This section includes a description of the storage capacity evaluation methodology and
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GROUND WATER : Artificial recharge to ground water is a process by which the ground water reservoir is augmented at a rate exceeding that obtaining under natural conditions or replenishment. Any man-made scheme or facility that adds water to an aquifer may be considered to be an artificial recharge system. WHY RAIN WATER HARVESTING : Rain water harvesting is essential because :- Surface water is inadequate to meet our demand and we have to depend on ground water. Due to rapid urbanization
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salinization is defined as the increase of chloride ion concentrations in freshwater aquifers or more simply put the movement of saline water into freshwater aquifers. When fresh water is withdrawn at a faster rate than it can be replenished‚ as a result the water table is drawn down. This also reduces the hydrostatic pressure. When this happens near an ocean coastal area‚ salt water from the ocean is pulled into the aquifer resulting in saltwater intrusion. This occurs more often along our coastlines‚
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Coca Cola’s operations have been blamed for exacerbating or causing stress on local water resources in some less developed countries. Review and discuss the evidence. Coca-Cola is the world’s largest beverage company offering more than 400 brands in over 200 countries. Multi-national corporations such as Coca-Cola are synonymous with globalisation and renowned for prioritising economic growth over environmental and social well-being. In their pursuit to maximise profits Coca-Cola has been accused
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RESEARCH RESEARCH Down To The Last Drop: Rainwater Harvesting In India By Jessica Canfield‚ Assistant Professor‚ Landscape Architecture/Regional and Community Planning ABSTRACT Only recently has rainwater harvesting begun to gain momentum as a viable‚ sustainable practice within the United States. However‚ in India‚ where economic resources are limited and where the health and survival of the population ultimately depend on rainwater from seasonal monsoons‚ citizens have been harvesting rain since
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