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231223s2008 xx ||||| 00| ||eng c |
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|a (DE-627)NLM178145769
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|a (NLM)18330219
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Schaefer, Scott H
|e verfasserin
|4 aut
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| 245 |
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|a Retooling the ethanol industry
|b thermophilic anaerobic digestion of thin stillage for methane production and pollution prevention
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 12.05.2008
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|a Date Revised 23.09.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a Anaerobic digestion of corn ethanol thin stillage was tested at thermophilic temperature (55 degrees C) with two completely stirred tank reactors. The thin stillage wastestream was organically concentrated with 100 g/L total chemical oxygen demand and 60 g/L volatiles solids and a low pH of approximately 4.0. Steady-state was achieved at 30-, 20-, and 15-day hydraulic retention times (HRTs) and digester failure at a 12-day HRT. Significant reduction of volatile solids was achieved, with a maximum reduction (89.8%) at the 20-day HRT. Methane yield ranged from 0.6 to 0.7 L methane/g volatile solids removed during steady-state operation. Effluent volatile fatty acids below 200 mg/L as acetic acid were achieved at 20- and 30-day HRTs. Ultrasonic pretreatment was used for one digester, although no significant improvement was observed. Ethanol plant natural gas consumption could be reduced 43 to 59% with the methane produced, while saving an estimated $7 to $17 million ($10 million likely) for a facility producing 360 million L ethanol/y
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Fatty Acids, Volatile
|2 NLM
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| 650 |
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|a Ethanol
|2 NLM
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| 650 |
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|a 3K9958V90M
|2 NLM
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| 650 |
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|a Methane
|2 NLM
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|a OP0UW79H66
|2 NLM
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| 700 |
1 |
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|a Sung, Shihwu
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 80(2008), 2 vom: 15. Feb., Seite 101-8
|w (DE-627)NLM098214292
|x 1061-4303
|7 nnns
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| 773 |
1 |
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|g volume:80
|g year:2008
|g number:2
|g day:15
|g month:02
|g pages:101-8
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|a AR
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|d 80
|j 2008
|e 2
|b 15
|c 02
|h 101-8
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