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Author:

Wang, Xiaoxia (Wang, Xiaoxia.) | Wang, Shuying (Wang, Shuying.) (Scholars:王淑莹) | Zhao, Ji (Zhao, Ji.) | Dai, Xian (Dai, Xian.) | Peng, Yongzhen (Peng, Yongzhen.) (Scholars:彭永臻)

Indexed by:

EI Scopus SCIE PubMed

Abstract:

Due to the limited nutrient removal from low carbon/nitrogen (<= 4) wastewater, a process combined simultaneous nitrification-endogenous denitrification and phosphorus removal (SNDPR) with post-denitrification (PD) in a SBR was proposed for deep-level nutrient removal without external carbon addition. SNDPR driven by PAOs and GAOs reduced PO43 -P (98.3%) and partial TN (59.0%) at low DO conditions (0.5 +/- 0.1 mg/L), and post-dentrification achieved further NOX (produced by SNDPR) removal (24.0%) anoxically by utilizing the residual intracellular polymers in GAOs. Combined control of anaerobic/aerobic/anoxic durations and low DO inhibition to aerobic GAOs and NOB conducted partial nitrification-endogenous denitrification (PNED) (66%), which saved 44.3% intracellular polymers to further reduce 64% TN in effluent. After 115-day operation, the average effluent PO43 -P and TN concentrations were 0.4 and 3.9 mg/L, respectively, with 92.1% of TN removal. Highly enriched PAOs (36% +/- 2%), GAOs (22% +/- 2%) and AOB (15% +/- 3%) over NOB (3% +/- 1%) facilitated P uptake, PNED and post-denitrification in the SNDPR-PD system. (C) 2016 Published by Elsevier Ltd.

Keyword:

Post-denitrification (PD) Simultaneous nitrification-endogenous denitrification and phosphorus removal (SNDPR) Partial nitrification (PN) Glycogen accumulating organisms (GAOs) Phosphorus accumulating organisms (PAOs)

Author Community:

  • [ 1 ] [Wang, Xiaoxia]Beijing Univ Technol, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
  • [ 2 ] [Wang, Shuying]Beijing Univ Technol, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
  • [ 3 ] [Zhao, Ji]Beijing Univ Technol, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
  • [ 4 ] [Dai, Xian]Beijing Univ Technol, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
  • [ 5 ] [Peng, Yongzhen]Beijing Univ Technol, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 王淑莹

    [Wang, Shuying]Beijing Univ Technol, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China

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Source :

BIORESOURCE TECHNOLOGY

ISSN: 0960-8524

Year: 2016

Volume: 220

Page: 17-25

1 1 . 4 0 0

JCR@2022

ESI Discipline: BIOLOGY & BIOCHEMISTRY;

ESI HC Threshold:238

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 88

SCOPUS Cited Count: 94

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 9

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