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Adjusting the rheol...
Adjusting the rheological properties of corn-straw slurry to reduce the agitation power consumption in anaerobic digestion
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- Liu, Yaoqian (author)
- Luleå tekniska universitet,Energivetenskap,State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
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- Chen, Jingjing (author)
- Luleå tekniska universitet,Energivetenskap,State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
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- Song, Jian (author)
- State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
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- Hai, Zhong (author)
- State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
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- Lu, Xiaohua (author)
- State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
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- Ji, Xiaoyan (author)
- Luleå tekniska universitet,Energivetenskap
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- Wang, Changsong (author)
- State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
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(creator_code:org_t)
- Elsevier, 2018
- 2018
- English.
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In: Bioresource Technology. - : Elsevier. - 0960-8524 .- 1873-2976. ; 272, s. 360-369
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Agitation power consumption (P) in the anaerobic digestion of biogas plants is a major consumer of electric energy. To reduce P by adjusting the rheological properties, in this work, the rheological properties of the corn-straw slurry were studied systematically considering the effects of TS, temperature and particle-size, and P was calculated based on the rheological behavior of the corn-straw slurry. The investigation shows that the corn-straw slurry is a non-Newtonian fluid and exhibit shear-thinning behavior, and the rheological properties can be well described with the power law model. The size-reduction is more effective compared to the option of temperature-increase to improve the agitation power efficiency, and the value of P can be reduced by up to 48.11 %. Since the size-reduction can also increase the methane yield, the reduction of the particle-size is a promising option to save P, especially at relatively high TSs and for the thermophilic AD process.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Keyword
- Rheological properties
- Corn-straw slurry
- Agitation power consumption
- Anaerobic digestion
- Energiteknik
- Energy Engineering
Publication and Content Type
- ref (subject category)
- art (subject category)
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