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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2014.09.022
|2 doi
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|a pubmed25n0809.xml
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|a (DE-627)NLM242814840
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|a (NLM)25318702
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|a (PII)S0956-053X(14)00444-9
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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 Fernández-Gómez, Manuel J
|e verfasserin
|4 aut
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|a Application of a set of complementary techniques to understand how varying the proportion of two wastes affects humic acids produced by vermicomposting
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 31.08.2015
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|a Date Revised 16.11.2017
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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 A better understanding of how varying the proportion of different organic wastes affects humic acid (HA) formation during vermicomposting would be useful in producing vermicomposts enriched in HAs. With the aim of improving the knowledge about this issue, a variety of analytical techniques [UV-visible spectroscopic, Fourier transform infrared, fluorescence spectra, solid-state cross-polarization magic-angle spinning (CPMAS) (13)C nuclear magnetic resonance (NMR) spectra, and thermal analysis] was used in the present study to characterize HAs isolated from two mixtures at two different ratios (2:1 and 1:1) of tomato-plant debris (TD) and paper-mill sludge (PS) before and after vermicomposting. The results suggest that vermicomposting increased the HA content in the TD/PS 2:1 and 1:1 mixtures (15.9% and 16.2%, respectively), but the vermicompost produced from the mixture with a higher amount of TD had a greater proportion (24%) of HAs. Both vermicomposting processes caused equal modifications in the humic precursors contained in the different mixtures of TD and PS, and consequently, the HAs in the vermicomposts produced from different waste mixtures exhibited analogous characteristics. Only the set of analytical techniques used in this research was able to detect differences between the HAs isolated from each type of vermicompost. In conclusion, varying the proportion of different wastes may have a stronger influence on the amount of HAs in vermicomposts than on the properties of HAs
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Humic acid
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|a Nuclear magnetic resonance
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|a Spectroscopic analysis
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|a Thermal analysis
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|a Vermicomposting
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|a Waste mixture
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|a Humic Substances
|2 NLM
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|a Soil
|2 NLM
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| 650 |
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|a Waste Products
|2 NLM
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| 700 |
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|a Nogales, Rogelio
|e verfasserin
|4 aut
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|a Plante, Alain
|e verfasserin
|4 aut
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| 700 |
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|a Plaza, César
|e verfasserin
|4 aut
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| 700 |
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|a Fernández, José M
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 35(2015) vom: 05. Jan., Seite 81-8
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnas
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| 773 |
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|g volume:35
|g year:2015
|g day:05
|g month:01
|g pages:81-8
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|u http://dx.doi.org/10.1016/j.wasman.2014.09.022
|3 Volltext
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