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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2014.05.017
|2 doi
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|a pubmed25n0796.xml
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|a (DE-627)NLM239070704
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|a (NLM)24917367
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|a (PII)S0956-053X(14)00218-9
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Di Maria, Francesco
|e verfasserin
|4 aut
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|a Co-treatment of fruit and vegetable waste in sludge digesters. An analysis of the relationship among bio-methane generation, process stability and digestate phytotoxicity
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 21.04.2015
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|a Date Revised 10.12.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2014 Elsevier Ltd. All rights reserved.
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|a The co-digestion of a variable amount of fruit and vegetable waste in a waste mixed sludge digester was investigated using a pilot scale apparatus. The organic loading rate (OLR) was increased from 1.46 kg VS/m(3) day to 2.8 kg VS/m(3) day. The hydraulic retention time was reduced from 14 days to about 10 days. Specific bio-methane production increased from about 90 NL/kg VS to the maximum value of about 430 NL/kg VS when OLR was increased from 1.46 kg VS/m(3) day to 2.1 kg VS/m(3) day. A higher OLR caused an excessive reduction in the hydraulic retention time, enhancing microorganism wash out. Process stability evaluated by the total volatile fatty acids concentration (mg/l) to the alkalinity buffer capacity (eq. mg/l CaCO3) ratio (i.e. FOS/TAC) criterion was <0.1 indicating high stability for OLR <2.46 kg VS/m(3 )day. For higher OLR, FOS/TAC increased rapidly. Residual phytotoxicty of the digestate evaluated by the germination index (GI) (%) was quite constant for OLR<2.46 kg VS/m(3)day, which is lower than the 60% limit, indicating an acceptable toxicity level for crops. For OLR>2.46 kg VS/m(3) day, GI decreased rapidly. This corresponding trend between FOS/TAC and GI was further investigated by the definition of the GI ratio (GIR) parameter. Comparison between GIR and FOS/TAC suggests that GI could be a suitable criterion for evaluating process stability
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|a Evaluation Study
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|a Journal Article
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|a Anaerobic co-digestion
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|a Biomethane
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|a FOS/TAC
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|a Fruit and vegetable waste
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|a Germination index
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|a Organic loading rate
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|a Waste mixed sludge
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|a Waste Products
|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 Sordi, Alessio
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cirulli, Giuseppe
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gigliotti, Giovanni
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Massaccesi, Luisa
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cucina, Mirko
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 34(2014), 9 vom: 31. Sept., Seite 1603-8
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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| 773 |
1 |
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|g volume:34
|g year:2014
|g number:9
|g day:31
|g month:09
|g pages:1603-8
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| 856 |
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|u http://dx.doi.org/10.1016/j.wasman.2014.05.017
|3 Volltext
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