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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2014.982724
|2 doi
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|a pubmed24n0812.xml
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|a (DE-627)NLM243689748
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|a (NLM)25413003
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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 Forde, P
|e verfasserin
|4 aut
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|a An evaluation of the performance and optimization of a new wastewater treatment technology
|b the air suction flow-biofilm reactor
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|c 2015
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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 01.10.2015
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|a Date Revised 10.12.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a In this laboratory study, a novel wastewater treatment technology, the air suction flow-biofilm reactor (ASF-BR) - a sequencing batch biofilm reactor technology with a passive aeration mechanism - was investigated for its efficiency in removing organic carbon, nitrogen and phosphorus, from high-strength synthetic wastewaters. A laboratory-scale ASF-BR comprising 2 reactors, 350 mm in diameter and 450 mm in height, was investigated over 2 studies (Studies 1 and 2) for a total of 430 days. Study 1 lasted a total of 166 days and involved a 9-step sequence alternating between aeration, anoxic treatment and settlement. The cycle time was 12.1 h and the reactors were operated at a substrate loading rate of 3.60 g filtered chemical oxygen demand (CODf)/m2 media/d, 0.28 g filtered total nitrogen (TNf)/m2 media/d, 0.24 g ammonium-nitrogen (NH4-N)/m2 media/d and 0.07 g ortho-phosphate (PO4-P)/m2 media/d. The average removal rates achieved during Study 1 were 98% CODf, 88% TNf, 97% NH4-N and 35% PO4-P. During Study 2 (264 days), the unit was operated at a loading rate of 2.49 g CODf/m2 media/d, 0.24 g TNf/m2 media/d, 0.20 g NH4-N/m2 media/d and 0.06 PO4-P/m2 media/d. The energy requirement during this study was reduced by modifying the treatment cycle in include fewer pumping cycles. Removal rates in Study 2 averaged 97% CODf, 86% TNf, 99% NH4-N and 76% PO4-P. The excess sludge production of the system was evaluated and detailed analyses of the treatment cycles were carried out. Biomass yields were estimated at 0.09 g SS/g CODf, removed and 0.21 g SS/g CODf, removed for Studies 1 and 2, respectively. Gene analysis showed that the use of a partial vacuum did not affect the growth of ammonia-oxidizing bacteria. The results indicate that the ASF-BR and passive aeration technologies can offer efficient alternatives to existing technologies
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|a Evaluation Study
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a biofilm
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|a biofilm analysis
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|a high-strength synthetic wastewater
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|a low energy
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|a sequencing batch biofilm reactor
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|a Organic Chemicals
|2 NLM
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|a Sewage
|2 NLM
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|a Phosphorus
|2 NLM
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|a 27YLU75U4W
|2 NLM
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|a Ammonia
|2 NLM
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|a 7664-41-7
|2 NLM
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|a Nitrogen
|2 NLM
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|a N762921K75
|2 NLM
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|a Oxygen
|2 NLM
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|a S88TT14065
|2 NLM
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| 700 |
1 |
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|a Kennelly, C
|e verfasserin
|4 aut
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|a Gerrity, S
|e verfasserin
|4 aut
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|a Collins, G
|e verfasserin
|4 aut
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| 700 |
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|a Clifford, Eoghan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Environmental technology
|d 1993
|g 36(2015), 9-12 vom: 20. Mai, Seite 1188-204
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnns
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|g volume:36
|g year:2015
|g number:9-12
|g day:20
|g month:05
|g pages:1188-204
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|u http://dx.doi.org/10.1080/09593330.2014.982724
|3 Volltext
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