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20240813232100.0 |
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231225s2022 xx |||||o 00| ||eng c |
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7 |
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|a 10.1002/wer.1684
|2 doi
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|a pubmed24n1500.xml
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|a (DE-627)NLM336182139
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|a (NLM)35083816
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|a DE-627
|b ger
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Luo, Hao
|e verfasserin
|4 aut
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|a Impacts of aluminum- and iron-based coagulants on municipal sludge anaerobic digestibility, dewaterability, and odor emission
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|c 2022
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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 Revised 12.08.2024
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 Water Environment Federation.
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|a Although aluminum- and iron-based chemicals have been broadly used as the two most common types of coagulants for wastewater treatment, their impacts on the performance of downstream sludge management can be quite different and have not been well understood. This work reviewed and analyzed their similarities and differences in the context of the anaerobic digestion performance, dewaterability of digested sludge, and odor emission from dewatered biosolids. In short, iron-based coagulants tend to show less negative impact than aluminum-based coagulants. This can be attributed to the reduction of ferric to ferrous ions in the course of anaerobic digestion, which leads to a suite of changes in protein bioavailability, alkalinity and hydrogen sulfide levels, and in turn the sludge dewaterability and odor potential. Whether these observations still hold true in the context of thermally hydrolyzed sludge management remains to be studied. PRACTITIONER POINTS: The impacts of aluminum-/iron-based coagulant addition on municipal sludge anaerobic digestibility, dewaterability, and odor emission are reviewed. Iron-based coagulants show less negative impact on the sludge digestibility than aluminum-based coagulants. Conclusions may aid practitioners in selecting coagulants in practice and better understanding the mechanisms behind the phenomena
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|a Journal Article
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|a Review
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|a activated sludge
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4 |
|a aluminum
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| 650 |
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4 |
|a anaerobic digestion
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| 650 |
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4 |
|a coagulation
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| 650 |
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|a dewaterability
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| 650 |
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4 |
|a iron
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| 700 |
1 |
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|a Sun, Yuepeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Taylor, Malcolm
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nguyen, Caroline
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Strawn, Mary
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Broderick, Tom
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Zhi-Wu
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 94(2022), 1 vom: 01. Jan., Seite e1684
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
1 |
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|g volume:94
|g year:2022
|g number:1
|g day:01
|g month:01
|g pages:e1684
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|u http://dx.doi.org/10.1002/wer.1684
|3 Volltext
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