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Exploring the Impact of Biogas Quantity and Quality in Different Digester Types with Variations in Temperature.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Exploring the Impact of Biogas Quantity and Quality in Different Digester Types with Variations in Temperature./
作者:
Barrios Arosemena, Maria Ines.
出版者:
Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:
287 p.
附註:
Source: Masters Abstracts International, Volume: 82-11.
Contained By:
Masters Abstracts International82-11.
標題:
Industrial engineering. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28419781
ISBN:
9798728233381
Exploring the Impact of Biogas Quantity and Quality in Different Digester Types with Variations in Temperature.
Barrios Arosemena, Maria Ines.
Exploring the Impact of Biogas Quantity and Quality in Different Digester Types with Variations in Temperature.
- Ann Arbor : ProQuest Dissertations & Theses, 2021 - 287 p.
Source: Masters Abstracts International, Volume: 82-11.
Thesis (M.S.)--Michigan State University, 2021.
This item must not be sold to any third party vendors.
The energy sector in the U.S. has been pushing for policies such as the Renewable Portfolio Standard (RPS) to mitigate the impacts of GHG emissions. Biogas from anaerobic digesters is a viable form of renewable energy, due to its CH4 composition, it can be used as a replacement for power and heat generation or upgraded and sold as biomethane. This study analyzed the effects of temperature in biogas quality and quantity of dairy cow manure in order to compare two main systems, a CSTR and a covered lagoon. A biochemical methane potential (BMP) test was performed to determine material biodegradability of dairy cow manure with respect to temperature. The results show that all samples are anaerobically biodegradable with samples yielding 86, 168, 440, 475 and 448 L biogas per kg initial VS for 15°C, non-mixed; 20°C, non-mixed; 30°C, non-mixed; 39°C, non-mixed; and 39°C, mixed, respectively. The BMP results demonstrated so significant difference between 30°C, non-mixed; 39°C, non-mixed; and 39°C, mixed, respectively. In addition, the effects of psychrophilic, unregulated, and mesophilic conditions were tested in small scale lab pilot digesters. Results show that mesophilic condition yielded the highest cumulative biogas production, while the psychrophilic and unregulated conditions presented higher methane yield. A life cycle analysis was performed to compare two popular anaerobic digestion systems, a CTSR and a covered lagoon, versus current manure management systems for dairy cow manure. The LCA revealed that both systems have less environmental burdens when compared to current waste management systems and a CSTR has less environmental burdens than a covered lagoon.
ISBN: 9798728233381Subjects--Topical Terms:
526216
Industrial engineering.
Subjects--Index Terms:
Dairy cows
Exploring the Impact of Biogas Quantity and Quality in Different Digester Types with Variations in Temperature.
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The energy sector in the U.S. has been pushing for policies such as the Renewable Portfolio Standard (RPS) to mitigate the impacts of GHG emissions. Biogas from anaerobic digesters is a viable form of renewable energy, due to its CH4 composition, it can be used as a replacement for power and heat generation or upgraded and sold as biomethane. This study analyzed the effects of temperature in biogas quality and quantity of dairy cow manure in order to compare two main systems, a CSTR and a covered lagoon. A biochemical methane potential (BMP) test was performed to determine material biodegradability of dairy cow manure with respect to temperature. The results show that all samples are anaerobically biodegradable with samples yielding 86, 168, 440, 475 and 448 L biogas per kg initial VS for 15°C, non-mixed; 20°C, non-mixed; 30°C, non-mixed; 39°C, non-mixed; and 39°C, mixed, respectively. The BMP results demonstrated so significant difference between 30°C, non-mixed; 39°C, non-mixed; and 39°C, mixed, respectively. In addition, the effects of psychrophilic, unregulated, and mesophilic conditions were tested in small scale lab pilot digesters. Results show that mesophilic condition yielded the highest cumulative biogas production, while the psychrophilic and unregulated conditions presented higher methane yield. A life cycle analysis was performed to compare two popular anaerobic digestion systems, a CTSR and a covered lagoon, versus current manure management systems for dairy cow manure. The LCA revealed that both systems have less environmental burdens when compared to current waste management systems and a CSTR has less environmental burdens than a covered lagoon.
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http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28419781
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