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231223s2006 xx ||||| 00| ||eng c |
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|a pubmed24n0557.xml
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|a (NLM)17163060
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Yoneyama, Y
|e verfasserin
|4 aut
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|a Upflow anaerobic sludge blanket (UASB) treatment of supernatant of cow manure by thermal pre-treatment
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|c 2006
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
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|2 rdamedia
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|2 rdacarrier
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|a Date Completed 27.02.2007
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|a Date Revised 17.09.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a Upflow anaerobic sludge blanket (UASB) methane fermentation treatment of cow manure that was subjected to screw pressing, thermal treatment and subsequent solid-liquid separation was studied. Conducting batch scale tests at temperatures between 140 and 180 degrees C, the optimal temperature for sludge settling and the color suppression was found to be between 160-170 degrees C. UASB treatment was carried out with a supernatant obtained from the thermal treatment at the optimal conditions (170 degrees C for 30 minutes) and polymer-dosed solid-liquid separation. In the UASB treatment with a COD(Cr) loading of 11.7 kg/m3/d and water temperature of 32.2 degrees C, the COD(Cr) level dropped from 16,360 mg/L in raw water to 3,940 mg/L in treated water (COD(Cr), removal rate of 75.9%), and the methane production rate per COD(Cr) was 0.187 Nm3/kg. Using wastewater thermal-treated at the optimal conditions, also a methane fermentation treatment with a continuously stirred tank reactor (CSTR) was conducted (COD(Cr) in raw water: 38,000 mg/L, hydraulic retention time (HRT): 20 days, 35 degrees C). At the COD(Cr) loading of 1.9 kg/m3/d, the methane production rate per COD(Cr), was 0.153 Nm3/kg. This result shows that UASB treatment using thermal pre-treatment provides a COD(Cr), loading of four times or more and a methane production rate of 1.3 times higher than the CSTR treatment
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|a Journal Article
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|a Manure
|2 NLM
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|a Sewage
|2 NLM
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|a Methane
|2 NLM
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|a OP0UW79H66
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|a Oxygen
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|a S88TT14065
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|a Nishii, A
|e verfasserin
|4 aut
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|a Nishimoto, M
|e verfasserin
|4 aut
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|a Yamada, N
|e verfasserin
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|a Suzuki, T
|e verfasserin
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 54(2006), 9 vom: 01., Seite 221-7
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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|g volume:54
|g year:2006
|g number:9
|g day:01
|g pages:221-7
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