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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2014.12.019
|2 doi
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|a pubmed25n0818.xml
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|a (DE-627)NLM245501657
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|a (NLM)25605301
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|a (PII)S0956-053X(14)00596-0
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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 Kulikowska, Dorota
|e verfasserin
|4 aut
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|a Sewage sludge composting in a two-stage system
|b carbon and nitrogen transformations and potential ecological risk assessment
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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 15.12.2015
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|a Date Revised 30.03.2015
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2015 Elsevier Ltd. All rights reserved.
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|a The study examined how aeration rate (AR) in bioreactor (1.0 and 0.5l/min kg dm) at low C/N ratio (ca. 15-16) affected kinetics of organic matter (OM) removal, i.e. rate constant of OM removal (k) and maximum degradation of OM (A) and nitrogen evolution during sewage sludge composting. Moreover, potential ecological risk (Er) based on metal (Cd, Cr, Cu, Hg, Ni, Pb, Zn) content was evaluated. The process involved a two-stage system (bioreactor and windrow). In the bioreactor, at higher AR, k and A equaled 0.34 d(-1) and 101.9 g/kg dm, respectively; at lower AR k was 0.38 d(-1), however A 1.4-fold lower. Interestingly, in the windrow, k was much higher (0.086 d(-1)) for the biomass subjected to a lower AR, compared to 0.026 d(-1) at higher AR. Moreover, although at lower AR, k in the windrow was 4.4-fold lower than in the bioreactor, A was 1.15-fold higher. Total N content in mature compost was on the level 23.51-22.35 g/kg dm and metal concentration showed low ecological risk (Er < 16)
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Aeration rate
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|a E(r), M(F), I(R) indices
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|a Organics removal kinetics
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|a Sewage sludge composting
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|a Two-stage system
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|a Metals
|2 NLM
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|a Organic Chemicals
|2 NLM
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|a Sewage
|2 NLM
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|a Carbon
|2 NLM
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|a 7440-44-0
|2 NLM
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|a Nitrogen
|2 NLM
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|a N762921K75
|2 NLM
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|a Gusiatin, Zygmunt M
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 38(2015) vom: 31. Apr., Seite 312-20
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnas
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|g volume:38
|g year:2015
|g day:31
|g month:04
|g pages:312-20
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|u http://dx.doi.org/10.1016/j.wasman.2014.12.019
|3 Volltext
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