Industrial-scale food waste composting : Effects of aeration frequencies on oxygen consumption, enzymatic activities and bacterial community succession
Copyright © 2020 Elsevier Ltd. All rights reserved..
Industrial-scale composting of food waste (FW) was performed at different aeration frequencies (C_5_25: 5 min aeration + 25 min interval, C_10_20: 10 min aeration + 20 min interval, C_15_15: 15 min aeration + 15 min interval and CK: stuffiness) to ascertain the optimal aeration frequency to accomplish polymerization and humification of compost. The tested aeration frequencies affected the oxygen uptake rate, oxygen spatial distribution, and ultimately influenced the humification of compost. Extensive aeration was not beneficial to accumulate nitrogen and phosphorus during composting. Aeration frequency influenced the succession of bacterial community primarily through affecting O2 concentration and the release of various enzymes by these bacteria. Regulating O2 concentration by adjusting aeration strategies may provide guidance for accelerating maturity of composting. Considering various factors, this paper recommends the scheme of heating period (C_5_25), thermophilic period (C_15_15) and psychrophilic period (no aeration).
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:320 |
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| Enthalten in: |
Bioresource technology - 320(2021), Pt A vom: 01. Jan., Seite 124357 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhang, Shuchi [VerfasserIn] |
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| Links: |
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| Themen: |
Aeration frequency |
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| Anmerkungen: |
Date Completed 15.12.2020 Date Revised 15.12.2020 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.biortech.2020.124357 |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Copyright © 2020 Elsevier Ltd. All rights reserved. | ||
| 520 | |a Industrial-scale composting of food waste (FW) was performed at different aeration frequencies (C_5_25: 5 min aeration + 25 min interval, C_10_20: 10 min aeration + 20 min interval, C_15_15: 15 min aeration + 15 min interval and CK: stuffiness) to ascertain the optimal aeration frequency to accomplish polymerization and humification of compost. The tested aeration frequencies affected the oxygen uptake rate, oxygen spatial distribution, and ultimately influenced the humification of compost. Extensive aeration was not beneficial to accumulate nitrogen and phosphorus during composting. Aeration frequency influenced the succession of bacterial community primarily through affecting O2 concentration and the release of various enzymes by these bacteria. Regulating O2 concentration by adjusting aeration strategies may provide guidance for accelerating maturity of composting. Considering various factors, this paper recommends the scheme of heating period (C_5_25), thermophilic period (C_15_15) and psychrophilic period (no aeration) | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Aeration frequency | |
| 650 | 4 | |a Bacterial community | |
| 650 | 4 | |a Enzymatic activity | |
| 650 | 4 | |a Food waste composting | |
| 650 | 4 | |a Oxygen supply | |
| 650 | 7 | |a Industrial Waste |2 NLM | |
| 650 | 7 | |a Soil |2 NLM | |
| 700 | 1 | |a Wang, Jingli |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Xu |e verfasserin |4 aut | |
| 700 | 1 | |a Gui, Jiaxi |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Yue |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Donglei |e verfasserin |4 aut | |
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