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Biofuel vs. Conventional Fuel - Biofuel is obtained from lifeless or living microbial resources. Also, various plants and plant-derived materials are used for biofuel manufacturing. In order to be considered a biofuel, the fuel must contain over 80 percent renewable resources. An important process to generate energy, photosynthesis, is the main route through which oxidised carbon (carbon dioxide) is decreased in the daytime and oxidised back to carbon dioxide to generating energy in the night. Biofuel is originally derived from the photosynthesis process and can therefore often be referred to as a part of solar energy source....   [tags: Biofuel]
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478 words
(1.4 pages)
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Biofuel Proposal - Biofuel Proposal Executive Summary: The power and prosperity of The United States of America will be severely hindered if changes are not taken within the next few years to reduce its dependency on oil and improve its usage of biofuel. The process to become less dependent on foreign energy sources will be crucial for the stability and growth of the nation in the upcoming years. Re-examining subsidies and tariffs are essential if any positive change is to be made. A Shift Away From Oil Is Crucial The consequences of the United States’ reliance on oil have brought together the nation’s leaders in ways that few issues have in decades....   [tags: Biofuel Energy Oil Renewable] 1405 words
(4 pages)
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Biofuel and Aquaculture - ... When some environmentalists and politicians earnestly advocated biofuel several years ago, they were referring to the potency of biofuel to reduce our dependence on carbon-rich fossil fuels and ultimately retard carbon emission. Admittedly in sheer biological sense, expanded biofuel can contribute to our endeavor to cut reliance on fossil fuels over a global scale. Yet recent studies have revealed the negative impacts of biofuel production on regional ecological systems such as strained water supply, pollution and ecological degradation (The National Academics, 2007; Fargione et al, 2008)....   [tags: Biodiesel, Natural Resources, Environment] 2091 words
(6 pages)
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Biofuel is An Alternative Energy Source - Biofuel: An Alternative Energy Source Abstract As the world’s source of fossil fuels diminishes, another source of energy must replace fossil fuels. This paper evaluates biofuel, one alternative form of energy by showing what biofuel is, how it works, its historical use, and benefits and drawbacks it pertains. I hypothesized that biofuel would be an effective alternative energy. My conclusion does not support my claim, but in terms of worldwide usage. Introduction: With the world’s source of fossil fuels depleting, we need to find an alternative energy source....   [tags: Power Energy Bio Fuel]
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1461 words
(4.2 pages)
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Biofuel and The Racing Industry - ... To create biofuel, large tracts of land need to be cleared for setting up the plant. This is not feasible because of global economic meltdown whose one major disadvantage is the rising food prices. If the land that could be better used for producing the much needed food crops, there is no need to use the same land for generating biofuels (FAO 07). Furthermore, the cost of establishing and running a biofuel plant runs into billions. Where would the money come from. Of course, the people have to pay for them, doubly, first for purchasing biofuel and secondly in the form of taxes....   [tags: Alternative Energy]
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1086 words
(3.1 pages)
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Biofuel: Ethanol Alternative to Transportation - Biofuel: Ethanol Alternative to Transportation For the past three decades Oil dominates the agenda of political discussion. With scares over price volatility, sizes of reserves, international imports and least of which are the environmental impacts due to carbon dioxide and other emissions. Various speculations and educated guesses place our total depletion of crude oil within the next 50 years and there is a general consensus between environmentalists that we steer toward a hydrogen transportation system given the projected work and nonexistent carbon dioxide emissions (Environmental Technologies class lecture, Santa Clara University)....   [tags: Politics Oil Essays]
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2074 words
(5.9 pages)
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Converting Switchgrass to Biofuel - Introduction: People need energy, it’s a fact. We need it for our cars, for our televisions and for our iPods. We need it all the time, every day. The simple fact is though, we are running out. Carbon based fuels are being used at an alarming rate every day. And every day our demand increases as our society becomes more and more reliant on technology. There is only so much oil in the world though and when that is gone we need to look for alternative sources of energy. Sources like ethanol produced from Switchgrass....   [tags: Biology Ethanol Alternative Fuel] 1851 words
(5.3 pages)
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Ethanol as an Alternative Energy Source - Biofuels: Ethanol an Alternative Energy Source Abstract In today's society, when someone wants to go to the movies, work, school, library, or mall, they drive to their destination. The average amount of gasoline consumed per year is about 146 gallons in the U.S. (Biofuels for Transportation, p1). Discoveries of huge petroleum deposits kept gasoline cheap for decades and biofuels were forgotten (Leen, p1). However, with the recent oil prices, along with growing concern of global warming caused by carbon dioxide emissions, biofuel regained popularity (Leen, p1)....   [tags: Biofuel Bio Fuel Essays Papers]
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1536 words
(4.4 pages)
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Algae is the Bio Fuel of the Future - Algae: Bio Fuel of the Future Bio Fuels are clearly the most suitable alternative energy of the future as oil and coal are both rapidly vanishing and increasingly out of interest for nations wishing to avoid terrorist nations. Recently, algae has been discovered as an extremely suitable bio fuel because of its surprisingly high ratio of yield to area required for growth. In 1960 Oswald and Golweke proposed the use of large‐scale ponds for cultivating algae on wastewater nutrients and anaerobically fermenting the biomass into methane fuel....   [tags: Biofuel Fuel Energy Power]
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1224 words
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From Oil to Renewable Energy - The world is depended on oil and soon oil will become more valuable than gold and could lead to a worldwide war. Price for oil could soar to above two hundred fifty dollars per barrel. Oil and other fuel cell also cause green house gases which contribute to global warming. China is consuming two times more petroleum than 1996 and India is projected to consume three times the oil it currently does by 2050. Global house gas emission has increased by twenty percent from 2003 to 2006. Energy consumption has increased exponentially throughout the globe....   [tags: Energy]
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1859 words
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Renewable Energy - ... The increasing of global energy demand happens the global stock of fossil fuel resources may be adequate for short term period, thus requiring the development of renewable energy sources, which would not decrease the stock of fossil fuel resources available for future generation. There is an increasing interest in the development of renewable energies such as biofuel and wind power, which have a great potential energy to produce enough power for the world’s population demand. This essay focuses on two renewable energy resources....   [tags: Energy, Fossil Fuel, Oil, Natural Gas] 1282 words
(3.7 pages)
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Alternative Fuel for Airplane - ... As a source of sustainable and renewable energy, biomass constantly interacting CO2, air, water, soil, and sunlight is composed of plants and animals. After the organism dies, microorganisms break down biomass into basic constituent parts, such as H2O, CO2, and its potential energy. (Basu, 2010) Important environmental matters related with increasing Biofuel productions are greenhouse gas emissions, land use, water use, air and water quality, biodiversity, and human health. The other hand at this time most Biofuel production has based on corn or soybeans as raw materials....   [tags: Energy, Sustainable Fuel] 2199 words
(6.3 pages)
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Food versus Fuel - ... (Peskett, et al., 2007, 17). Pimentel explains that even though the use of plant based biofuel may seem beneficial, there are many environmental and ethical concerns that must be taken into account (Pimentel, et al., 2009, 1). 2. Land resources and water demand Crops for food and biofuel both require land, water, and energy (Pimentel, et al., 2009, 1). The additional demand for these resources will cause conflict over their allocation (Pimentel, et al., 2009, 9). Population growth and increased demand for both biofuels and food will put extraordinary pressure on the land (Peskett, et al., 2007, 16)....   [tags: ] 1283 words
(3.7 pages)
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Alternative Fuels - Alternative Fuels This day in age, one of the world’s main concerns is energy. Currently, we rely on petroleum to run our cars, and household central heat, and electricity in our homes. Petroleum is not only limited, but it is also dirtying up the world’s air, and depleting the ozone layer as it is burned. Alternative fuels are one of the worlds most talked about issues, and many solutions have been brought forth, yet none of them have been sophisticatedly acted upon. Through the list of pros and cons, one shall determine the importance of alternative fuels, and how bad the pros outweigh the cons, thus forcing the reality of the matter that we need to start moving towards these alternate forms of energy, and fuel....   [tags: essays research papers fc]
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1052 words
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The World's Reliance on Fossil Fuels - Fossil Fuels The day was Black Friday. Around the world people are purchasing goods and services that they may or may not need. Many of these goods created take crude oil to produce. The world needs to change its habits to sustain time in the creation of new alternatives to fossil fuels. In my research I found that crude oil or petroleum will only last approximately thirty to forty more years. That means that the clock is ticking and we must find a solution to this major question facing our world....   [tags: alternative energy, gasoline, oil] 1366 words
(3.9 pages)
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Biodiesel vs. Ethanol - Biodiesel vs. Ethanol Both biodiesel and ethanol are derivatives of biomass that have been processed to create a liquid biofuel. Both types of biofuels have been touted as secure and environmentally safe alternatives to fossil fuels, however the research verifying these claims is extensive but often contradicting. In the following paper, the efficiency and quality of the two types of biofuel will be discussed. The effects of variables such as source materials and production techniques on efficiency and quality will be considered....   [tags: Compare Contrast Fuel Essays Papers]
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1083 words
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The Corn Ethanol Industry - The corn ethanol industry has undergone several public relations iterations in recent years. It once emanated a cure all aura to domestic fuel market volatility, environmental concerns, and vulnerabilities to international energy markets. As research took place regarding the feasibility of large scale corn ethanol production, questions were raised as to the actual net economic and environmental effects of production. With the recent EPA change in corn ethanol classification, the market reality has once again changed....   [tags: Alternative Energy] 684 words
(2 pages)
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Global Food Prices on the Rise - ... Barriers also support national security and are “employed by developed countries to protect certain industries that are deemed strategically important” (Radcliffe, 2011). Who Suffers from These Policies Tariffs on imports and barriers affect consumers and taxpayers, companies such as grocery stores, farmers who are in poor countries and nations who pay the increased price on goods. While free trade is supposed to give the consumer, or taxpayer, more choices and a reduced price on goods, adding tariffs to items that are imported defeat the purpose of providing a good at a reduced price....   [tags: Economics, Global Government]
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936 words
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The Green Change - ... (West, Larry) Former leader of Swedish Social Democratic Party Mona Sahlin stated "A Sweden free of fossil fuels would give us enormous advantages, not least by reducing the impact from fluctuations in oil prices," she said. "The price of oil has tripled since 1996."(West, Larry) The goal Sweden set for them of being completely oil free is a big goal for the country. This is the same when JFK said that the American people were going to put a man on the moon. Both were big claims but so far one has been achieved and Sweden is still making steps forward to becoming an oil free economy....   [tags: Energy ]
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1224 words
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Algae: A Green Alternative - ... Using systems that are currently in place will greatly reduce the environmental burden of algae production. The United States uses nearly one billion acres of land for food production, with nearly 400 million of these acres used for growing crops and the rest for grazing animals. Nevertheless, algae harvesting would not take away any land used for food production because it grows in water and not the fertile land needed for crops. Large scale algae growing facilities could be placed in unfruitful land unsuitable for agricultural use such as areas of the desert southwest or areas like the Salton Sea that have been decimated by agricultural runoff....   [tags: Environmental Issues]
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1365 words
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Growth for the Future: Biofuels - Growth for the Future: Biofuels The internal combustion engine, so vital for sustaining America's burgeoning economy, is omnipresent in most vehicles from the greatest semis to the smallest economy cars. The combustion engine is also a mode of transportation that is fraught with problems, both costing billions of U.S. dollars to fuel and causing enormous air pollution problems. Iowa, the nation's largest producer of corn and a leading agricultural state, may have the solution to the problems caused by the enormous burden of gasoline and diesel powered engines, biofuel....   [tags: Economics Economy Papers]
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2806 words
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Hawaii’s Renewable Energy Future - ... 2009, 10). Arent (2009, 5) also points out: “Rooftop PV systems could potentially meet a significant portion of Oahu energy use. And increasing Oahu’s renewable energy-based electricity with PV and other technologies may also leverage resources on other islands.” Hawaii has already started implementing solar energy as an alternative to petroleum based electricity. Johnson et al. (2006, 8) gives as an example that on the island of Hawaii, an incentive program has led to people installing solar water heaters in their homes which are in about 10% of the homes, which covers about 1.5% of the islands electricity demand....   [tags: Energy ]
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1860 words
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Pros and Cons of Biofuels - ... Diesel engines do not have to be modified to run on palm oil biodiesel. 6) Jatropha The jatropha bush is grown in Central America India. The jatropha bush grows quickly and does well in droughts when water is inadequate. The jatropha bush has a lifespan of fifty years and the seeds contain forty percent oil content. According to one estimate from Industrial Bioprocessing, 2.47 acres of jatropha would produce .83 to 2.2 tons of oil (Perritano, 2011). This would help the world not rely on crude oil so much....   [tags: Energy Production, Biomass, Corn] 2158 words
(6.2 pages)
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Biomass Energy: Hidden Environmental Implications in the Globalization Era - ... 2006, p.40). According to the World Bank (2010) due to the large-scale regional programs for biofuels development in Latin America and the Caribbean, the impact could result in competition for land between food and energy production, where land use changes would arise. Certainly, the land use changes affect the long term site fertility due to the repeated extraction of nutrients from the soil. In fact, in a recent scientific study between 47 agricultural sites across the world, showed a reduction in the forest recovery rate of, “9.3 percent with each cycle of shifting cultivation......By implication, carbon sequestration in secondary forest fallows is similarly reduced” as consequence affecting the carbon stocks....   [tags: Environmental Sustainability]
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3588 words
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Alcohol Producing Yeast - ... Moreover, Indian distilleries use these raw materials based on their availability and cost since these are seasonal grains [12, 13]. The increasing price of crude oil and other fossil fuels have increased the interest in alternative fuel sources around the world [14, 15]. Fuel alcohol production from starch materials needs constant process improvement for meeting the economic payback by lowering the high price energy consumption and improvement in fermentation efficiency in order to be considered as a viable alternative to fossil fuel....   [tags: Environment, Fossil Fuel, Crude Oil] 540 words
(1.5 pages)
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Brazil’s Bioethanol Initiative - Brazil’s Bioethanol Initiative The OPEC oil embargo caused many ripple effects throughout the world, but few places set in motion a response as dramatic as the county of Brazil. Brazil, a sprawling oil-poor country in South America was hit especially hard by the drop in ready world oil supplies. The county was gearing up for the transition from an agricultural and subsistence economy, to an industrialized one in the early seventies. This was accompanied by an increase in oil imports to the nation from overseas....   [tags: Essays Papers]
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Legalization of Marijuana for Medical Uses and Hemp - Legalization of Marijuana for Medical Uses and Hemp Marijuana, dope, weed, pot, these are all names for a drug that has many medical uses, but it not currently legal in the United States. Marijuana is still used extensively for medical purposes, even though it is illegal. Marijuana, when smoked, produces a chemical substance known as THC, or tetra-hydro-cannabinol. It is often used as a recreational drug, which is used to heighten perception, and relax the mind and body. In medical use, it is a painkiller, used my patients of many chronic diseases....   [tags: Papers] 656 words
(1.9 pages)
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Determining if Bagasse Contributes to Belize Electricity Resource - Determining if Bagasse Contributes to Belize Electricity Resource Graphics Missing Boyle states that “Bioenergy is the general term for energy derived from materials such as wood, straw, or animal waste, which were once living material”(p 106). The energy stored in a living organism even when it’s dead is known as biofuel. This fuel is capable of producing energy. A biomass used for creating bioenergy in Belize is bagasse. The bagasse that is produced in Belize is created by the Belize Sugar Industries....   [tags: Renewable Energy Environment Essays Papers]
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1203 words
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Ethanol as the Answer - Ethanol as the Answer I. Introduction One of the most hotly contested debates in today’s realm of environmental concern is how to secure energy for the maintenance and improvement of quality of life in the future. To date, humanity has been blessed with plentiful reserves of cheap crude oil, which can be refined into a multitude of items that make the lives of many so convenient—gasoline, heating oil, natural gas, plastics, and fertilizers. In some parts of the world, these technologies merely facilitate survival....   [tags: Oil Energy Natural Resources Essays Papers]
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5394 words
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Biomass as an Alternative Energy - Biomass Abstract: The current use of energy in the United States, especially California, is foreshadowing catastrophe in our environment. Due to high demand of fossil fuels, the air is filled with more pollution every day. In addition to, it can increase the chances of having global warming. Since fossil fuels are generated from raw materials which are easy and cheap users are becoming extremely dependent on them. The main problem with fossil energy is that the supply of fossil fuels is not continuous....   [tags: Power Global Warming Climate Change Pollution]
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1698 words
(4.9 pages)
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Ethanol Fuel - Missing Figures Ethanol Abstract: As of now we drive cars almost everywhere from home to the local store or different states. According to www.wikipedia.com there is “an estimated 243,023,485 registered passenger vehicles in the United States according to a 2004 DOT study!” 1That is a lot of cars. In a year the US alone consumes around 146 billion gallons of gasoline that is a huge amount. 2 According to figure 1 about 86% of all world energy comes from oil, gasoline, and coal; this leaves a tiny 14% to be divided among the other natural resources we could harness....   [tags: Energy Vehicle Automobile E85]
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980 words
(2.8 pages)
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Solar, Hydroelectric, and Wind Power cannot replace Fossil Fuels - Are Solar, Hydroelectric, and Wind Power Conceivable Alternatives to Fossil Fuels in the Future. Abstract: Fossils fuels are diminishing. Other, possibly more environmentally safe, energy sources are needed to replace them. The purpose of this study was to examine closely the three most common renewable energy sources—solar, wind, and hydroelectric power—as a solution to the “energy problem” of today and possibly the energy crisis of the future. However, solar and wind energy account for a very small percent of the energy used by the U.S....   [tags: Energy Power Global Warming]
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2116 words
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Evolution, Immortality, and Humanity - Our ancient ancestors in the Neolithic Era only lived for an average of 20 years, an age now considered to be only the beginning of adulthood. As human technology become more sophisticated and knowledge of the ourselves and of nature expands, humans develop longer lifespan and the general quality of life improves. In fact, we have more than tripled the lifespan of our ancestors while retaining much of the same biological fitness. Humans have withdrawn from natural selection because technologies, not the evolution of the body, allow humans adapt to the ever-changing nature....   [tags: Genomics, Genome]
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2431 words
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Assessing Renewable Energy Projects - As aforediscussed, many authors agree that capital utilization play an important role in defining business viability; however there is a lack of assessment methodologies for making such assessment possible on the context of assessing Renewable Energy Projects. In view of that, and in order to tackle this difficulty, a generic assessment model has been presented on Chapter three Within the context of studying Renewable Energy Projects, this section provides an application of the generic model as to provide a glance on the insights, or gains in knowledge that can be achieved from the exploration of capital....   [tags: Energy] 1149 words
(3.3 pages)
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Air Travel Industry Q&A - 1. Consider the air travel industry’s microenvironment. Using Figure 3.1, indentify the main companies and other organisations forming the microenvironment. Microenvironment is the factors that impact to organisation ability to serve its customers. In air travel industry, microenvironment can be say that is • Suppliers: Transport industry need vehicle to serve its customers, thus Boeing and Airbus, aerospace company, are main suppliers of air transport. Moreover, serving meal is one of its services that provided almost every flight....   [tags: Air Travel] 786 words
(2.2 pages)
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Improvements on the Performance of a Microbial Fuel Cell for Biological Treatment of Hexavalent Chromium - Microbial Fuel Cells (MFCs) General Generally, a MFC is a certain type of a biofuel cell which can be defined as “a system in which microorganisms function as catalysts to convert chemical energy into electrical energy” (Rabaey, 2010). A conventional MFC system generally consists of two chambers, a biological anode chamber and an abiotic cathode chamber separated by a CEM (He and Angenent, 2006). An oxidizable substrate able to provide the microorganisms and consequently the anode’s electrode with electrons is used in the anode chamber, while oxygen or another reducible substrate is used in the cathode....   [tags: Research Analysis ]
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4368 words
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VIABILITY OF WORLD MASSIVE USE OF AFRICAN PALM BIODIESEL - VIABILITY OF WORLD MASSIVE USE OF AFRICAN PALM BIODIESEL Abstract The pressing need to find new alternative fuels friendly to the environment, which originated in the speculative shortage of clean gasoline, has turned the attention of governments, researchers and organizations in general on biofuels, among which is, as a potential source oil palm. Such interest has led it to achieve growth in its production and use beyond economic expectations over the past decade. The oil palm has been the focus of governments and investors mainly in warm tropical countries eligible for its proper cultivation, thus creating a sound growing industry, based on a latent global need....   [tags: Oil]
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1581 words
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Is Corn for Food or Fuel? - One day I pulled up to a gas station, and to my surprise I saw a new sticker on the pump. The sticker read,” Fuel may contain 10% Ethanol.” I was a little taken back by the sticker. I didn’t have a full understanding of why ethanol was being used in the fuel for my car. I knew that ethanol was a bi-product of corn and other plants, so I found myself asking the question, is corn for food or fuel. I got back into my car and returned to the freeway with this question on my mind. While driving I started noticing stickers and labels on other vehicles that read: CNG (compressed natural gas), Flex Fuel (allows vehicles to go between 2 different fuels), HEV (Hybrid Electric Vehicle), and Bio-diesel (cleaner burning diesel fuel, made from plants or vegetable oils)....   [tags: Energy ]
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Petroleum - Build or Burn - PETROLEUM – BUILD OR BURN CHEMICAL PRINCIPLES Petroleum is one of the three fossil fuels which consist of a mixture of hydrocarbons. Petroleum is used as an important source of energy worldwide. Approximately 90% of the petroleum which is extracted is used for energy. Petroleum is also important in the production of synthetic compounds such as plastics. Petroleum is not a renewable energy source like all fossil fuels so should not be used carelessly. So should we build or burn it. To make a valued opinion as to whether we should build or burn a few chemical concepts need to be understood which is discussed below....   [tags: Energy] 1046 words
(3 pages)
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An Analysis of the Use of Nanotechnology in Electrical Energy Production and Storage and as a Means of Reducing Energy Consumption. - ... Due to not energetic enough solar radiation, which separates electron from the atomic bonds in the silicon crystal, the energy losses occur. In addition, the surface of cells can reflect sunlight, which leads to decrease in efficiency. The main disadvantages of solar cells are low efficiency and high cost of their production. (Wolfgang Luther 2008) The maximum conversion efficiency of current solar silicon cells is about 25 %( Luisa Filipponi and Duncan Sutherland 2007) Nanotechnology can be used in order to improve solar cells and eliminate drawbacks....   [tags: Energy ]
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Genetically Modified Crops - ... The company was charging these farmers (B) with stealing their product. This all came about when wind was blowing seed from the research plots (A) over on to the farmers (B) land, and farmers (B) were not responding to eradicate the plant that germinated on their land from the GM seed. In 2010, Germany high courts came to the farmer’s side. In an article by Gretchen Vogel called, “Germany's High Court Preserves Restrictions on GM Crops,” in Science Insider, Vogel reports that, “farmers—and researchers—who plant GM crops are liable for any pollen that escapes to neighboring fields and makes any crops contaminated this way it is unmarketable as GM-free....   [tags: Agriculture]
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What is Bio-fuel? - ... Another lesser known form of Bio-fuel is Biobutanol. Biobutanol is derived from a specialized fermentation process and utilized the same feedstocks as Bioethanol but produces a fuel fare more similar to gasoline and can be used in a traditional gasoline engine without modification (Butonaol). What is Bio-fuels impact on the environment. Bio-fuels have many environmental advantages over traditional petroleum based fuel. One, they’re what’s commonly referred to as carbon-neutral, meaning the net carbon impact on the environment is minimal or zero....   [tags: Energy ]
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Energy Production - ... Hydraulic fracturing, or “fracking”, despite being invented by Halliburton some seventy years ago, is the new driving force behind the gas boom. As the practice is becoming more widely used, its safety is being called into question at all levels of government. Fracking is a process where companies drill down into the earth to fracture a layer of shale one thousand to twelve thousand feet underground where they “steer the drilling horizontally for several thousand more feet” (Deutch, 2011). After reaching their target depth, the company doing the drilling pumps a high-pressure cocktail of chemicals, sand, and water into the shale to release the precious gas....   [tags: Environment, Natural Gas] 1865 words
(5.3 pages)
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The Impact of Biodiesel on Automotive Catalyst Performance - ... Other generally proposed reasons for this observation include; the advanced combustion associated with the higher biodiesel blend ratio, and its combustion timing. A study according to Choi et al (6) showed that CO emissions from biodiesel were remarkably affected by the engine load conditions. They specifically observed that, at low load conditions, there was no difference in the CO emissions recorded between the blend ratios tested, whereas at high load conditions, a decrease in CO emissions was observed with increasing biodiesel blend ratio....   [tags: Energy, Diesel] 1259 words
(3.6 pages)
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Air Pollution and Climate Change - ... The most prevalent air pollutants, as established by the Australian Government, are; carbon monoxide, lead, nitrogen dioxide, ozone, particles and sulfur dioxide (2. Aust. Gvt. 2009.). Carbon monoxide occurs in the atmosphere naturally at low levels, and is mainly sourced from volcanoes and bushfires. It is emitted from anthropogenic sources by exhaust emissions and some industrial activities (2. Aust. Gvt. 2009). Since approximately 1950, anthropogenic sources of CO2 have escalated, as Figure 1 below demonstrates....   [tags: environment, pollution, global warming] 1498 words
(4.3 pages)
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The Recent Global Food Crisis and Obesity Epidemic - ... Lang (2010: 87-97) weighs in the issue of the recent food crisis, arguing that the emphasis on increased food production to counter food crises has always been unsuccessful since there are other dimensions to the food issues. This includes market distortions and access. Lang observes that economic power on food has shifted from the land to the retailers whose consequence has been mass production and the accompanied marketing of food items in a similar fashion to all other market items. Lang’s theoretical framework is centered upon the evolution of a strong retailer in food issues, effectively delinking producers from consumers, shaping consumer tastes, deciding distribution and technology for production and flexible specialization in food production....   [tags: Health, Agri-Food Sector] 1796 words
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