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作者:

Zheng, Zhaoming (Zheng, Zhaoming.) | Li, Jun (Li, Jun.) | Wang, Changwen (Wang, Changwen.)

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摘要:

The rapid cultivation strategy of aerobic granular sludge (AGS) for simultaneous phenol degradation and ammonium oxidation was studied in a sequence batch reactor (SBR). The short-term inhibitory kinetics of phenol was studied through batch experiments. For the sodium acetate fed AGS, the phenol inhibition constants (Ki) of specific oxygen utilization rate by heterotrophic bacteria (SOURh) was 508.6 mg/L. The Ki of specific ammonium utilization rate (SAUR) was 232.3 mg/L. After 28 days’ acclimatization, the phenol and NH4+-N removal rates of the SBR reached 94.0% and 96.4% when the influent phenol and NH4+-N concentrations were 1000 and 33.5 mg/L, respectively. The phenol removal loading rate was 1.69 kg/(m3·d). For the mature phenol&ammonium degrading AGS, the polysaccharide (PS) and protein (PN) concentrations were 247.4 ± 10.3 and 68.6 ± 6.5 mg/g VSS, respectively. The functional groups analysis showed that the amount of [sbnd]OH, [sbnd]NH, [sbnd]C[dbnd]O and [sbnd]C[dbnd]C groups remained unchanged in the mature phenol&ammonium degrading AGS. © 2020

关键词:

Batch reactors Biodegradation Granular materials Rate constants Phenols Sodium compounds

作者机构:

  • [ 1 ] [Zheng, Zhaoming]National Engineering Laboratory for Wastewater Treatment Technology, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Li, Jun]National Engineering Laboratory for Wastewater Treatment Technology, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Wang, Changwen]National Engineering Laboratory for Wastewater Treatment Technology, Beijing University of Technology, Beijing; 100124, China

通讯作者信息:

  • [li, jun]national engineering laboratory for wastewater treatment technology, beijing university of technology, beijing; 100124, china

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来源 :

Bioresource Technology

ISSN: 0960-8524

年份: 2021

卷: 325

1 1 . 4 0 0

JCR@2022

ESI学科: BIOLOGY & BIOCHEMISTRY;

ESI高被引阀值:84

JCR分区:1

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SCOPUS被引频次: 21

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