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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2019.05.020
|2 doi
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|a pubmed24n0992.xml
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|a (DE-627)NLM297775383
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|a (NLM)31160019
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|a (PII)S0956-053X(19)30320-4
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Kong, Xin
|e verfasserin
|4 aut
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|a Fe0 inhibits bio-foam generating in anaerobic digestion reactor under conditions of organic shock loading and re-startup
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|c 2019
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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 12.09.2019
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|a Date Revised 12.09.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2019. Published by Elsevier Ltd.
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|a Bio-foaming during the anaerobic digestion (AD) of the organic fraction of municipal solid waste (OFMSW) is a major cause of unstable reactor operations, especially under high organic loading rates (OLRs). Here, we used two 40-liter anaerobic reactors to deal with the actual organic fraction of municipal solid waste at OLRs of 5 and 7.5 kgVS/m3/d and tried to inhibit bio-foam generation by dosing with Fe0. One of reactors had 400 g of Fe0 added before operation and additional 200 g of Fe0 was added when the operating conditions changed; the other one was the control reactor with no Fe0 dosing. The results show that bio-foam was generated in the control reactor at an organic shock loading of 10 kgVS/m3/d and re-startup at 5 kgVS/m3/d, while the reactor containing Fe0 operated normally. Due to the surfactant attributes of volatile fatty acids (VFAs), the probability of bio-foam generation was positively correlated with the effluent's degree of surface activity (SA) induced by VFAs, which is a parameter representing the foaming potential. Because VFA biodegradation was enhanced in the reactor with added Fe0, at the position of Fe0 accumulation, the SA was decreased by 49.7-59.2%. Furthermore, the effect of Fe0 dosing on inhibiting bio-foam was evaluated by comparison with traditional commercial anti-foam agents. The results suggest possible reasons for bio-foam generation in OFMSW AD and suggest the reasonable usage of Fe0 to inhibit bio-foam formation
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|a Journal Article
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|a Anaerobic digestion
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|a Bio-foam generation
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|a Excessive acidification
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|a Fe(0)
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|a Organic fraction of municipal solid waste
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7 |
|a Fatty Acids, Volatile
|2 NLM
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|a Solid Waste
|2 NLM
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| 650 |
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|a Methane
|2 NLM
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| 650 |
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7 |
|a OP0UW79H66
|2 NLM
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| 700 |
1 |
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|a Liu, Jianguo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yue, Xiuping
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Yanan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Hongtao
|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 92(2019) vom: 01. Juni, Seite 107-114
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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| 773 |
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|g volume:92
|g year:2019
|g day:01
|g month:06
|g pages:107-114
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|u http://dx.doi.org/10.1016/j.wasman.2019.05.020
|3 Volltext
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|d 92
|j 2019
|b 01
|c 06
|h 107-114
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