Angelina Galvis Mr. Mulhearn- Environmental Science May 2014 The Pros and Cons of Water Dams There are approximately 75,000 water dams just in the United States, providing the right amount of water in the right place at the right time. Majority of our world today relies on water dams. They are an efficient way of storing water, creating electricity and more. Even though our world has become almost dependent on this invention, it does have just as many cons that it does pros. A water dam is a barrier that stores water; it can be on the surface or in underground caves.
The act of making the wastewater fit for reuse is recycling. Not only does reusing waste water benefit humans economically, it also assists in sustaining the quality of the environment. Introduction Wastewater is water that is considered to be below the standard of suitable quality for the environment by humans. This type of water originates from a mixture of used water
Figure 2: Sustainability Model Objectives of CEMEX 1.4 Areas of Priority Low income housing and infrastructure Enhance Carbon strategy Lead in sustainable construction Excellence in environmental biodiversity management to reduce impact of operations. High priority to health and safety. Strengthen local communities by helping more than 300,000 families gain an access to building materials and improve their houses and helping them to rebuild after major disasters partnership with key stakeholders. CEMEX is the first to measure the greenhouse gas emissions of it products. Solutions to increase access to its produ... ... middle of paper ... ...t on environment.
Buying a home water purification system can save money and remove those nasty toxins and fluoride. Tap water can carry less harmful substances than bottled. Tap is more regulated frequently for contaminants that can cause sickness to consumers. Business Insider says “The National Resources Defense Council conducted a study on plastic bottled water and determined that 22 percent of the water tested contained contaminant levels that exceeded local state health limits”(You Are Paying 300 Times More for Bottled Water than Tap Water). In fact in some places the tap water is so pure it does not need to be filtered.
Desalination process is the removal of salt from water such as saltwater and wastewater. The human population and industrialization have both increased exponentially, placing most natural resources under stress. The rate of population growth for 20 years is about half of the water consumption. The water is an essential resource for life and, been threatened due to poor ethics among consumer (household, industrial). The desalination process is been touted as the technology of the future that will improve the poor trends recorded in waste treatment technology, and help restore the water resource to it ideal condition due to low energy consumption.
One of the biggest advantages is that hydropower won’t release any harmful emissions and can play a major role in the reduction of greenhouse gases. If the world converted to hydropower, pollution of the environment would be minimal and much less than the current ways of energy production such as burning coal. Hydroelectric energy is also renewable energy source, this makes hydropower more reliable and cheaper compared to our current use of rapidly depleting fossil fuels. Building the power plant may have initial high expenses due to investment costs, but running the plant might be comparatively cheaper. Water, the essential source for running the plant, is able to be provided through natural means through water sources, thus being renewable and further reducing the
100(24): 6229- 6235 Amounts of oilfield produce water differs from time to time relying on the different methods of extraction. Sometimes the well itself can produce 10 to 20 times the amount of water than oil. Scientists have found that the longer the well is online the more water it produces in its lifetime. In the dryer climates it may proof to be more profitable to recycle the produce water and use it for agriculture reasons and for the oil exploration itself. The waist stabilization ponds are a treatment method that prevails more effective in the dry and hotter climates.
China by its self has a ten percent of the world’s potential. Obviously to know how hydroelectricity works you would need to know what hydroelectricity is. As stated before the most common energy is solar energy, which the majority of us know is produces by the sun and its ray’s. But instead of sun being the source that produces solar energy, hydroelectric energy is created by water, and hydro means exactly that which I water. The quantity of electricity that can be generated at a location is a task of the capacity of water at that location and the head, or the distance through which the water falls.
Small hydro-powered plants have the largest share in electricity production from renewable sources. It is estimated that the installed capacity at a global level is 47,000 MW, with the technical and economic potential of nearly at 180,000 MW. Small hydro-powered plants (SHP) are usually driven by the water flow, with no need for significant amounts of water, as well as the constructions of large dams and reservoirs, although it helps if they there so they can be easily used . There is a general international agreement on definition of MHE, the upper limit ranges between 2.5 and 25 MW in different countries, but mostly accepting the value of 10 MW. MHE can be further divided into "mini hydroelectric power plant," which is usually described as a composition of up to 500 kW.
Environmental and political concerns are just two reasons why alternative energy sources, such as ocean energy conversion, need to be considered. Overview of Ocean Energy Conversion Technologies Technologies that currently exist for generating electrical power from the oceans can be grouped into six broad categories: thermal energy, tidal power, wave power, ocean currents, ocean winds, and chemical sources. According to Ron Bregman, an Ocean Resource Engineer, the most promising and well-developed of these technologies are thermal energy, tidal power, and wave power (1996). Thermal Energy The oceans are the world’s largest solar collectors. Each day the oceans absorb an amount of solar radiation equivalent in heat content to about 250 billion barrels of oil, according to Michael Champ in Sea Technology (1995).