Biogas Essay

Great Essays
1. INTRODUCTION
1.1 What is biogas?
Nowadays hydrocarbons are one of the biggest energy bases of our society, but it is not renewable energy, and once they are exhausted they cannot be replenished. (but as it is not a renewable energy once they are exhausted they cannot be replenished) Therefore, scientists from around the world have researched the use of other energy resources to continue moving the world, such as solar and nuclear energy, which are two main areas of research. However, there are other energies, less known and therefore less used, like biogas.
Biogas is a renewable (source of) energy that belongs to the category of biofuels. It typically refers to a gas produced by the biological breakdown of organic matter in the absence
…show more content…
It typically refers to a gas produced by the biological breakdown of organic matter in the absence of oxygen. The fermentation of biodegradable materials such as biomass, manure, sewage, municipal waste, green waste, plant material and crops produces biogas. The whole process works like a big concrete stomach would: Organic materials like manure, food scraps, crop residue, or wastewater sludge (known as feedstock) are fed into the digester, where it’s heated to 38-40 degrees Celsius (temperature of a cow’s stomach) and stirred for 30-60 days, slowly producing a combination of methane, carbon dioxide and other gases (known as biogas).
There are two key processes: mesophilic and thermophilic digestion which is dependent on temperature.
A mesophile is an organism that grows best in moderate temperature, neither too hot nor too cold, typically between 20 and 45 °C (68 and 113 °F).[1] The term is mainly applied to microorganisms. Organisms that prefer extreme environments are known as extremophiles.
Generally anaerobic digestion in the thermophilic range provides a number of advantages in relation held in mesophilic
…show more content…
Injections includes? biogas until the breakthrough of micro combined heat and power two-thirds of all the energy produced by biogas power plants was lost, using the grid to transport the gas to customers, the electricity and the heat can be used for on-site generation resulting in a reduction of losses in the transportation of energy. La frase es largisima y no se entiende muy bien, poner puntos para hacerlo mas entendible.
1.4.3 Biogas in transport
If concentrated and compressed, it can be used in vehicle transportation. Compressed biogas is used increasingly more in Sweden, Switzerland, and Germany. For example, a biogas-powered train, named Biogaståget Amanda, has been in service in Sweden since 2005.
1.4.4 Measuring in biogasenvironments biogas environments
Biogas is part of the wet gas and condensing gas category that includes fog in the gas stream. The fog is predominately water vapour that condenses on the sides of pipes or stacks along the gas flow. Biogas environments include wastewater digesters, landfills, and animal feeding operations.
En esta pagina te he justificado los margenes al dcha.
2. SOURCES AND PRODUCTION OF

Related Documents

  • Improved Essays

    Should oil drilling be allowed off the coast of North Carolina? This question has sparked mass controversy not only in North Carolina but around the world. With population growth at an all-time high and demand for natural resources increasing rapidly, the race to energy security for our nation has escalated. In 2015, the Obama administration, declared the consideration of allowing offshore oil drilling off the coasts of Georgia, Virginia, South Carolina, and North Carolina. The U.S Department of the Interior drafted a 5-year plan making oil and gas leasing available on the southeast coast.…

    • 1001 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Results of the experiment for the fungal amylase activity were in support of previous research; similar to Serrano and Peralta’s (2015) study, optimum amylase activity was clearly indicated in the results. Denaturation was also clearly indicated with regards to fungal amylase. According to the data gathered in our experiment, the optimum range for bacterial amylase activity appears to fall between 25° C and 55° C, with the lowest averages falling in the 55° C column in Table 2. The process of denaturation also appears to have begun around 85° C.…

    • 724 Words
    • 3 Pages
    Improved Essays
  • Decent Essays

    Biofuels In The 1800s

    • 130 Words
    • 1 Pages

    Biofuels and bioenergy are as old as civilization itself. Solid biofuels, such as wood, animal waste, and charcoal have been used since man discovered fire, and they are still used today for cooking and heating in many communities and in developing countries. Liquid biofuels such as olive oil and whale oil have been used in the ancient past. From the mid 1700s to the early 1800s, whale oil was extensively used and was the fuel of choice for lighting houses. In this time period, whaling was a big business and whale populations greatly decline.…

    • 130 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    In one example, “a stream downhill from a West Virginia puppy mill was found to have a coliform bacteria load 400 times greater than the legal limit” (HSUS). The dog feces also transfer to the soil; there is a high probability that any person or animal that comes into contact with the waste will get infected. The pathogens can be harmful to humans and even cause deadly infections. In puppy mills it is common for dog feces to build up on the ground. This produces methane, which is a powerful and dangerous greenhouse gas.…

    • 1678 Words
    • 7 Pages
    Improved Essays
  • Improved Essays

    The author then explains the effects of releasing massive amounts of animal waste by stating, “Shit found in factory farmed hogs are ammonia, methane, hydrogen sulfide, carbon monoxide, cyanide, phosphorus, nitrates, and heavy metals”(Foer 175). In comparison, he also states, “In addition, the waste nurses more than 100 microbial pathogens that can make humans sick, including salmonella, cryptosporidium, streptococci, and giardia”(Foer 175). The author explains in these quotes examples of the gases that are released into our environment and how they are harmful to…

    • 1283 Words
    • 6 Pages
    Improved Essays
  • Superior Essays

    Factors such as temperature, enzyme concentration, and pH of the enzyme solution can disable the effects of catalase” (Shikama & Yamazaki, 1961). We performed an experiment to record the reaction rates of different concentration percentages of substrate (enzyme reactant) in various temperatures to see what conditions catalase is most effective. We hypothesized that the higher substrate concentration and the closer to the preferred temperature of catalase, the higher the reaction rate will be. Our null hypothesis is substrate concentration and temperature will have no effect on catalase’s reaction…

    • 1183 Words
    • 5 Pages
    Superior Essays
  • Decent Essays

    A Fart Research Paper

    • 628 Words
    • 3 Pages

    FART; DISGUSTING OR HEALTHY? From the short video, did you hear that? Can someone tell me what that sound mean? Yes. It is a fart sound.…

    • 628 Words
    • 3 Pages
    Decent Essays
  • Improved Essays

    The United States has pledged to cut greenhouse gas emissions up to 28 percent in an effort to fight the effects of climate change. The main four greenhouse gases (or GHG) are: carbon dioxide (released in the atmosphere through burning of fossil fuels like oil and coal as well as solid waste and deforestation), methane (emitted in the production of natural gases as well as livestock and agricultural practices), nitrous oxide (emitted during agricultural and industrial activities) and fluorinated gases (produced through industrial processes and commercial and household uses). According to the United States Environmental Protection Agency (EPA), as humans increase their GHG emissions, the gases build up in the atmosphere and warm the climate,…

    • 155 Words
    • 1 Pages
    Improved Essays
  • Improved Essays

    Which do you think is worse for the environment, driving a gas guzzling truck or eating beef every day? You might think that the truck is going to be worse, but you cannot see greenhouse gases and judge which is going to produce more gas. Studies are finding that cows, and other livestock, produce greenhouse gases, are having measurable effects to climate change. Although cars produce a lot of carbon dioxide (CO2) , livestock emit methane (CH4) and CO2, plus contribute to climate change in other ways.…

    • 1679 Words
    • 7 Pages
    Improved Essays
  • Improved Essays

    The purpose of this experiment is to conduct and test the effects of catechol oxidase with varying temperatures. Based on many scientific journals, changes on different enzymes are affected by temperature (Pao-Huei et al. 2016). These concluded that the reaction of catechol oxidase is accelerated…

    • 1142 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    A deep-sea hydrothermal vent is one of the harshest places to live on earth. This is due to the pitch darkness, heavy metals, extreme acidity, poison gas and the enormous pressure. Sunlight penetrates no further than a few hundred feet down which means the deep-sea floor is as dark as a deep cave. There are no plants due to no sunlight and all the vent life belong to the animal kingdom. Due to there being no plants there is no photosynthesis.…

    • 462 Words
    • 2 Pages
    Improved Essays
  • Superior Essays

    If animal agriculture had this much of an impact over one hundred and seventy years ago, imagine the magnitude of impact it is having today. To provide land for the livestock, feed crops, slaughterhouses, and grazing fields, animal agriculture uses nearly seventeen million square miles of land. That’s about thirty percent of the earth’s land mass. Twenty-six percent of all ice-free land, seventy percent of all farming land, and thirty percent of all plant land surface is dedicated to animal agriculture. Vegetarian diets only require a portion of the thirty-three percent of farming land that animal agriculture uses, since one acre of plants can feed more humans than it can animals.…

    • 1230 Words
    • 5 Pages
    • 8 Works Cited
    Superior Essays
  • Improved Essays

    Climate change comes to the fore as in any discussion of environmental. Human activities such as burning fossil fuels, deforestation, and using transportation are the main causes which rapidly accelerate climate change. However, such problems can be controlled and dealt with by making an effort to implement renewable energy and conserve energy as mentioned and the sequestration of carbon dioxide. Thermal power generation burning fossil fuels such as coal, petroleum, and natural gas has been used to produce electric energy.…

    • 840 Words
    • 4 Pages
    Improved Essays
  • Superior Essays

    There are many health risks from breathing in the chemicals formed from burning fossil fuels, but we still use them. There are alternatives to using fossil fuels like ethanol and biodiesel, which are not as great of a pollutant as fossil fuels. The production of renewable energy seeks to harness the power of nature to convert into usable energy. There is no pollution formed from the creation of renewable energy. Renewable energy can also be cheaper as…

    • 1766 Words
    • 8 Pages
    Superior Essays
  • Great Essays

    Biofuels have been and remain a major source of energy throughout the history of civilisation. Geothermal energy is categorised into deep-earth, high-density; and shallow-earth, low-density. High –density makes use of energy within the earth, whereas the low-density makes use of energy from the sun. This energy can be used to generate electricity in many…

    • 1674 Words
    • 7 Pages
    Great Essays