Response of humic acid formation to elevated nitrate during chicken manure composting
Copyright © 2018 Elsevier Ltd. All rights reserved..
Nitrate can stimulate microbes to degrade aromatic compounds, whereas humic acid (HA) as a high molecular weight aromatic compound, its formation may be affected by elevated nitrate during composting. Therefore, this study is conducted to determine the effect of elevated nitrate on HA formation. Five tests were executed by adding different nitrate concentrations to chicken manure composting. Results demonstrate that the concentration of HA in treatment group is significantly decreased compared with control group (p < 0.05), especially in the highest nitrate concentration group. RDA indicates that the microbes associated with HA and environmental parameters are influenced by elevated nitrate. Furthermore, structural equation model reveals that elevated nitrate reduces HA formation by mediating microbes directly, or by affecting ammonia and pH as the indirect drivers to regulate microbial community structure.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2018 |
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Erschienen: |
2018 |
Enthalten in: |
Zur Gesamtaufnahme - volume:258 |
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Enthalten in: |
Bioresource technology - 258(2018) vom: 15. Juni, Seite 390-394 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Shi, Mingzi [VerfasserIn] |
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Links: |
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Themen: |
Composting |
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Anmerkungen: |
Date Completed 30.05.2018 Date Revised 02.12.2018 published: Print-Electronic Citation Status MEDLINE |
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doi: |
10.1016/j.biortech.2018.03.056 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM282272933 |
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520 | |a Nitrate can stimulate microbes to degrade aromatic compounds, whereas humic acid (HA) as a high molecular weight aromatic compound, its formation may be affected by elevated nitrate during composting. Therefore, this study is conducted to determine the effect of elevated nitrate on HA formation. Five tests were executed by adding different nitrate concentrations to chicken manure composting. Results demonstrate that the concentration of HA in treatment group is significantly decreased compared with control group (p < 0.05), especially in the highest nitrate concentration group. RDA indicates that the microbes associated with HA and environmental parameters are influenced by elevated nitrate. Furthermore, structural equation model reveals that elevated nitrate reduces HA formation by mediating microbes directly, or by affecting ammonia and pH as the indirect drivers to regulate microbial community structure | ||
650 | 4 | |a Journal Article | |
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700 | 1 | |a Zhang, Duoying |e verfasserin |4 aut | |
700 | 1 | |a Wei, Dan |e verfasserin |4 aut | |
700 | 1 | |a Tang, Yu |e verfasserin |4 aut | |
700 | 1 | |a Zhao, Yue |e verfasserin |4 aut | |
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