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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/wer.1266
|2 doi
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|a pubmed24n1008.xml
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|a (DE-627)NLM30270308X
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|a (NLM)31665805
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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 |
1 |
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|a Baltrėnas, Pranas
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Experimental research of efficiency of semi-continuous and periodic biogas production processes by using chicken manure bioloadings
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 29.04.2020
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|a Date Revised 29.04.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2019 Water Environment Federation.
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|a Semi-continuous and periodic biogas production processes were investigated. Dry chicken manure containing 40.0 ± 0.5% volatile solids (VS) was used for the production of bioloading. Semi-continuous operation bioreactor and periodic bioreactor were used to implement research. Bioloading was additionally supplemented with newly prepared parts by removing 10% of decomposed mass and by adding the same amount of preheated mass every 7 days (semi-continuous process). The process was periodic when the mass was completely decomposed (after 45 days of the experiment) and fully removed (bioreactor was loaded with a new portion of raw material to 100% of the working volume again). Total duration of both experiments was 90 days. The results show that biogas production by semi-continuous process is more effective than periodic process due to higher total biogas yield (up to 39.7%) and higher methane yield (up to 33.5%). The maximum concentration of CH4 was determined during the periodic biogas production process, but the difference was only up to 2.1% (68.9% and 66.8%, respectively). Since the produced biogas had quite high average CO2 and H2 S concentrations (<40.0% and 2.1 g/m3 , respectively), it is recommended to use filter-adsorbers or biofilters. According to the results, semi-continuous type bioreactor is more effective than periodic. PRACTITIONER POINTS: Maximum CH4 concentration in biogas, produced during periodic process, is 2.1% higher than during the semi-continuous process. Average CH4 concentration in biogas, produced during periodic and semi-continuous process, reaches 52.7% and 53.0%, respectively. Biogas and methane yield (during periodic process) is 39.7% and 33.5% lower than during the semi-continuous process. CH4 concentration decreases (after supplement) about 6.0%-7.0% (during the semi-continuous process), but increases to the next cyclic bioloading supplement. Semi-continuous biogas production process is more efficient than periodic
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|a Journal Article
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|a biodegradation
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|a biological treatment
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|a biosolids
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|a sludge
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|a wastewater treatment
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|a Biofuels
|2 NLM
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| 650 |
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|a Manure
|2 NLM
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| 650 |
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|a Methane
|2 NLM
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| 650 |
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|a OP0UW79H66
|2 NLM
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| 700 |
1 |
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|a Kolodynskij, Vitalij
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 92(2020), 5 vom: 28. Mai, Seite 722-730
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
1 |
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|g volume:92
|g year:2020
|g number:5
|g day:28
|g month:05
|g pages:722-730
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|u http://dx.doi.org/10.1002/wer.1266
|3 Volltext
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