Anaerobic digestion

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  • Anaerobic Digestion Research Paper

    Methane is the final product of Anaerobic Digestion. A mixture of methane and carbon dioxide is called a biogas and it can be used for heating and can be used as a natural gas. Anaerobic treatment systems are divided into “high rate” systems involving biomass retention and “low rate” systems without biomass retention. High rate systems are characterized by a relatively short hydraulic retention time but long sludge retention time and can be used to treat many types of wastewater. Low rate systems are generally used to digest solid wastes and are characterized by a long hydraulic retention time, equal to the sludge retention time. Methane is produced through the process of anaerobic digestion. Anaerobic microbiological decomposition is a process in which micro-organisms need energy so they grow by metabolizing organic material in an oxygen free environment resulting in the production of methane. Anaerobic digestion is a biological process, it’s strongest influences are environmental factors. Things such as Temperature, pH, alkalinity, and toxicity are the main control factors. Anaerobic digestion can occur at temperatures as low as 32 degrees Fahrenheit, but the rate of methane production increases with higher temperature. The first steps of anaerobic digestion can occur at a wide range of pH…

    Words: 1336 - Pages: 6
  • Separation Technology Essay

    Because Germany, Austria, Belgium, and other European countries have a relatively perfect waste source separation system and mechanical sorting facilities, mechanical-anaerobic digestion technology was first applied in 1984 and now has been widely used to handle food waste, fruit and vegetable garbage, yard waste, and organic waste by mechanical sorting. 10774BMunicipal waste collection started late in China, and the Ministry of Construction identified Beijing, Shanghai, Guangzhou, Shenzhen,…

    Words: 1101 - Pages: 5
  • 2.2 Preparation Of Inoculum

    2.1 Preparation of inoculum The hydrogen producing anaerobic sludge containing mixed microflora was collected from the bottom of the anaerobic pond located at Felda Palm Oil Industry, Lepar Hilir, Gambang, Malaysia. To enrich the sludge with hydrogen producing bacteria and inhibit the bioactivity of methanogens, the sludge was heat treated at 90°C for 60 minutes [21]. The treated anaerobic sludge was used as inoculum for the hydrogen production. The acclimated inoculum has a 4.6 g-SS/L…

    Words: 1116 - Pages: 5
  • Methanoculleus Summary

    A review of Methanoculleus: a hydrogenotrophic methanogens frequently observed in anaerobic habitats Summary: Keywords: Methanoculleus, hydrogenotrophic pathway, methane production Introduction: Methane is an important greenhouse gas due to its capability of retaining heat and its release from many nature sources, including wetlands, fresh water or sea water sediments, and animal manure, etc. There are two main means of atmospheric methane production, biogenic and abiogenic. Since 70%-80% of…

    Words: 1889 - Pages: 8
  • Landfills And Environmental Problems Of Landfill In South Africa

    Contents I. Introduction II. Open dump and environmental problems III. Early landfills IV. Modern landfills V. Mariannhill Landfill, South Africa VI. Conclusion Introduction Municipal Solid Waste (MSW), also known as refuse, trash, rubbish or garbage, refers to a type of waste that comprises of items that are discarded by the public every day. The management of this waste has evolved over the years. This forms the basis of this essay. Open dump and environmental problems Open dumps are…

    Words: 762 - Pages: 4
  • Summary: The Gastrointestinal Microbiome

    over their body. However, the gastrointestinal microbiome is one of the most complex and dense populations studied (Todar, 2012). The mammalian gastrointestinal tract is comprised of about four million bacterial genes with more than 95% located in the large intestine (Galland, 2014). The gastrointestinal microbiota varies along the tract at longitudinal levels and horizontal levels due to particular bacteria attaching to the epithelium in the lumen (Todar, 2012). With DNA sequencing and…

    Words: 1719 - Pages: 7
  • Importance Of Fitness: Aerobic And Anaerobic Training

    Importance of Fitness: Aerobic & Anaerobic Training in soccer Jason Garcia Florida Atlantic University Professor Grace HSC2100: Health, Fitness for Life November 6, 2014 Abstract Utilizing the research of Stewart Flaherty (2013), Sarah R (2010) and Beth Mervyn, (1991), this paper reflects understanding of how aerobic and anaerobic training influences the maximum distance a soccer player is able to cover in a soccer game. Also identified, are the possible…

    Words: 1037 - Pages: 5
  • Musculoskeletal System And The Digestive System

    The body and roles of the organ systems are interlinked; together they work in maintaining homeostasis. In the event of arduous or prolonged exercise, such as running a marathon. The body’s systems such as the, digestive, musculoskeletal, respiratory and circulatory, must work together to meet the demands placed upon the runner’s body. Firstly, the process of the digestive system can be broken down into four sections, ingestion, digestion, absorption and assimilation (Toole, Toole and Toole,…

    Words: 1125 - Pages: 5
  • Small Bowel Intersection Case Study Conclusion

    Open Small Bowel Resection Small bowel resection is surgery to remove part of the small bowel. The small bowel, also called the small intestine, is the top part of the intestines. It is part of the digestive system. When food leaves the stomach, it goes into the small bowel. Most food is then absorbed into the body. A small bowel resection may be needed if the small bowel becomes blocked or harmed by disease. One type of procedure is called an open resection. This means the surgeon will make…

    Words: 887 - Pages: 4
  • Caecotrophagy Ethics

    Humans are responsible for the health and nutrition of all the animals they have domesticated to be their companions. This ethical responsibility involves the ability to understand the nutritional needs of companion animals. This is the case with lagomorphs such as rabbits and a variety of rodents who practice caecotrophy. Caecotrophy, also known as coprophagy, is the act of eating soft excretions, known as caecotrophs, directly from the anus for additional nutritional absorption and digestion…

    Words: 1043 - Pages: 5
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