GEOS 3310 Lecture Notes: Water Pollution Dr. T. Brikowski Spring 2012 file:waterQuality.tex‚v (1.33‚ November 14‚ 2011)‚ printed March 30‚ 2012 Water Pollution 1 Introduction Water pollution is the “degradation of water quality as measured by biological‚ chemical‚ or physical criteria.” Common sources of groundwater pollution are listed in Keller [Table 14.3‚ 2011]. Typical pollutants include: • Oxygen-demanding waste: materials that produce a high BOD [Fig. 11.2‚ Keller‚ 2000]
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Ex tension SP553 WATER: Betty Greer‚Ph.D.‚ R.D. Professor Family and Consumer Sciences Important for Life W ater makes up approximately twothirds of the body’s weight and approximately 75 percent of the brain’s weight. Nearly 4 percent of the water in the body is lost through the skin‚ lungs and through urine and stools each day. This water loss must be replaced continually by beverage and food consumption. Sweating causes greater water loss and increases the need to consume
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Water is a human right‚ not a commodity. It is the essence of life‚ sustaining every living being on the planet. Without it we would have no plants‚ no animals‚ no people. However‚ while water consumption doubles every twenty years our water sources are being depleted‚ polluted and exploited by multinational corporations. Water privatization has been promoted by corporations and international lending institutions as the solution to the global water crises but the only one’s who benefit from water
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The Physical properties of water: 1. Knowledge of the physical properties of water: Water is the most abundant compound on Earth ’s surface‚ covering about 70 percent of the planet. In nature‚ water exists in liquid‚ solid‚ and gaseous states. It is a dynamic equilibrium between solid and gas states at standard temperature and pressure. At room temperature it is tasteless and odourless‚ nearly colourless with a hint of blue. Many substances dissolve in water and is commonly called a universal
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the current water shortage on Oahu. For the purpose of this paper‚ our group has chosen to discuss what we believe to be the top three most feasible technological solutions. In order of current usability they are; 1. Water recycling 2. Desalination 3. OTEC (Ocean Thermal Energy Conversion) Water Recycling Water recycling here on Oahu is an important part of ensuring a sustainable water supply for future generations. Through the natural water cycle‚ the earth has recycled and reused water for millions
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70% water and 30% of land. Our body is also composed of 2/3 of water. In other words life without water is INPOSIBLE.Imagine what would happen if amount of water in nature would be drastically reduced? I believe we all know the answer and the consequences. The entire flora‚ fauna and the entire human being will die slowly. Now a day‚ we have a lot of amount of water in our planet but that is a big paradox because a big part from that water is polluted. Basically living the life without water or with
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“By 2015 half of the world will be short of water” Mohammed Allaf As the population of the world grows and grows and has reached the 7 billion mark‚ more and more fresh water is needed for the population to be used for drinking‚ cooking‚ washing and all the day to day uses of water. Thus trying to find fresh water has become a major threat because of the heavy consumption and need. And as this happens the poorer countries would be affected the most because of their inability to fund to
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Water resources are sources of water that are useful or potentially useful. Uses of water include agricultural‚ industrial‚ household‚ recreational and environmental activities. Virtually all of these human uses require fresh water. 97% of the water on the Earth is salt water. However‚ only three percent is fresh water; slightly over two thirds of this is frozen in glaciers and polar ice caps.[1] The remaining unfrozen freshwater is found mainly as groundwater‚ with only a small fraction present
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Water shortage may be next cause of world war While much attention and debate have been correctly focused on the impending planet-wide oil shortage‚ a far greater calamity awaits us as the reality of the looming global water crisis becomes more apparent. It is not unreasonable to wonder whether the next world war will be fought over oil or water. No resource on Earth is more precious than water. While ongoing events draw our attention to oil‚ we ignore what will become the most serious resource
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2004‚ water supply was available on average for 18 hours each day in the West Zone of Metro Manila and 21 hours in the East Zone. According to their respective websites‚ the utility responsible for water supply in the East Zone of Metro Manila increased 24-hour water from 26% in 1997 to 98% in 2007‚ whereas in the West Zone‚ 42% of the customers had an uninterrupted supply in 2007. In a 2004 sample of 45 water service providers with different management models and sizes‚ the National Water Resources
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