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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1. Ramgnaga sub-basin description Ramganga is the first major tributary that joins to the Ganga with a catchment area of 32‚768 km2. Ramganga rises at an altitude of about 3‚110 m in the lower Himalayas near the Lohba village in the Garhwal district and enters the plains at Kalagarh near the border of the Garhwal district of Uttar Pradesh. Then‚ the river flows in a southeasterly direction and finally joins the Ganga on its left bank near Kanauj in the Fategarh district. The river flows entirely
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also helpful in a desk study. 2) Site Reconnaissance The Site Reconnaissance phase of a site investigation is normally in the form of a walk over survey of the site. Important evidence to look for is: Hydrogeology: Wet marshy ground‚ springs or seepage‚ ponds or streams and Wells. Slope Instability: Signs of slope instability include bent trees‚ hummocks on the ground and displaced fences
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GEOHYDROLOGY HYDROLOGIC CYCLE The movement of water on the earth’s surface and through the atmosphere is known as the hydrologic cycle. Water is taken up by the atmosphere from the earth’s surface in vapour form through evaporation. It may then be moved from place to place by the wind until it is condensed back to its liquid phase to form clouds. Water then returns to the surface of the earth in the form of either liquid (rain) or solid (snow‚ sleet‚ etc.) precipitation. Water transport can also
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1 Dewatering 1 Implications of dewatering on the dolomite compartments The term dewatering tends to create a concept of completely dry mines or aquifers. This is not the case as dewatering is a state where the inflow to the mine is reduced by removing water that is in storage in the dolomites. When the compartment is dewatered the mine still experiences a continuous inflow‚ often very significant‚ with inflow rate equal to the recharge rate. Dewatering is achieved when Pumping
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Introduction 1.1 Problem Statement Fractures are prevalent in natural and synthetic structural media‚ even in the best engineered materials. We find fractures in bedrock‚ in sandstone aquifers and oil reservoirs‚ in clay layers and even in unconsolidated materials (Figures 1.1 to 1.4). Fractures are also common in concrete‚ used either as a structural material or as a liner for storage tanks (Figure 1.5). Clay liners used in landfills‚ sludge and brine disposal pits or for underground storage
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Groundwater: What Can The Golf Course Industry Do to Protect This Valuable Natural Resource? The Ogallala Aquifer‚ also known as the High Plains Aquifer‚ is a vast yet shallow underground water table aquifer located beneath the Great Plains in the United States. One of the world’s largest aquifers‚ it lies under about 174‚000 square miles in portions of the eight states of South Dakota‚ Nebraska‚ Wyoming‚ Colorado‚ Kansas‚ Oklahoma‚ New Mexico‚ and Texas. It was named in 1899 by N.H. Darton from
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DESIGN AND CONSTRUCTION METHOD FOR DEEP TUBEWELLS CONSIDERING DIFFERENT HYDROLOGICAL PARAMETERS Sajal Kumar Dutta Shankar Kumar Debnath Achinto Kumar Chakrabortty DEPARTMENT OF CIVIL ENGINEERING BANGLADESH INSTITUTE OF TECHNOLOGY‚ RAJSHAHI September‚ 2001 ABSTRACT Surface water is abundant in the wet season in Bangladesh. But during dry season‚ ground water ought to be the principal dry season source of water available
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Machhli jal ki hai raani‚ Jeevan jiske hai paani Haath lagao toh dar jayegi‚ Upar laoge toh mar jayegi Meaning: Fish is the queen of water‚ whose life is water; It is scared of the touch and out of water it shall perish This is not just true for fish‚ but for any life on the earth. The biosphere with its fauna and flora owes its existence to water. In the solar system it is only our earth that is credited with water‚ that too just 1% of the entire water‚ that is potable. It is therefore
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2/26/2013 SOIL MECHANICS 1 KAEA 2132 - Phase diagram & phase relationship - Soil-Aggregate Basic Relationship Dr. Meldi Suhatril Department of Civil Engineering‚ Faculty of Engineering‚ University of Malaya. Review : o Soil is inherently multiphase material (Generally consists of three phases) i. Solid phase ii. Liquid phase iii. Gaseous phase 3 – Phase system: AIR WATER Vv Va Vw Vs Wa= 0 Ww Ws = o It can also be TWO PHASE material i. With solid + Gaseous (DRY STATE)
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