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231224s2015 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2015.371
|2 doi
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|a pubmed25n0847.xml
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|a (DE-627)NLM254239404
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|a (NLM)26524444
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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 Peng, Hong
|e verfasserin
|4 aut
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|a Sludge reduction by direct addition of chlorine dioxide into a sequencing batch reactor under operational mode of repeatedly alternating aeration/non-aeration
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|c 2015
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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 Completed 04.02.2016
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|a Date Revised 07.12.2022
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|a published: Print
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|a Citation Status MEDLINE
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|a The effect of direct addition of chlorine dioxide (ClO2) into a repeatedly alternating aeration/non-aeration sequencing batch reactor (SBR) on its sludge reduction and process performance was investigated. The experimental results showed that the sludge reduction efficiency was 32.9% and the observed growth yield (Yobs) of SBR was 0.11 kg VSS (volatile suspended solids) /kg COD (chemical oxygen demand) for 80 days' operation at the optimum ClO2 dosage of 2.0 mg/g TSS (total suspended solids). It was speculated that cell lysis and cryptic growth, uncoupled metabolism and endogenous metabolism were jointly responsible for the sludge reduction in this study. COD, NH3-N, total nitrogen (TN) and total phosphorus (TP) in the effluent increased on average 29.47, 4.44, 1.97 and 0.05 mg/L, respectively. However, the effluent quality still satisfied the first-class B discharge standards for municipal wastewater treatment plants in China. In that case, the sludge maintained fine viability with the specific oxygen uptake rate (SOUR) being 14.47 mg O2/(g VSS·h) and demonstrated good settleability with the sludge volume index (SVI) being 116 mL/g. The extra cost of sludge reduction at the optimum ClO2 dosage was estimated to be 2.24 CNY (or 0.36 dollar)/kg dry sludge
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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 Chlorine Compounds
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|a Oxides
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|a Sewage
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|a Waste Water
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|a Phosphorus
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|a 27YLU75U4W
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|a chlorine dioxide
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|a 8061YMS4RM
|2 NLM
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|a Nitrogen
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|a N762921K75
|2 NLM
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|a Liu, Weiyi
|e verfasserin
|4 aut
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|a Li, Yuanmei
|e verfasserin
|4 aut
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|a Xiao, Hong
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 72(2015), 9 vom: 07., Seite 1534-42
|w (DE-627)NLM098149431
|x 1996-9732
|7 nnns
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|g volume:72
|g year:2015
|g number:9
|g day:07
|g pages:1534-42
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|u http://dx.doi.org/10.2166/wst.2015.371
|3 Volltext
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