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Issue 44, 2018, Issue in Progress
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Evaluation of disinfection by-products (DBPs) formation potential in ANAMMOX effluents

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Abstract

Disinfection by-products (DBPs), major health concerns in the potable reuse of municipal wastewater effluent, are process-related in wastewater treatment systems. Anammox is a promising and increasingly-applied technology for nitrogen removal in wastewater. In this study, the relationship between DBP formation potential and the anammox process has been investigated based on a lab-scale sequencing batch reactor (SBR). Excitation and emission matrix (EEM) fluorescence spectroscopy was employed to identify the compositions of the DBP precursors. The results showed that the effluents from the anammox SBR could yield both carbonaceous and nitrogenous DBPs after chlorination. Trichloromethane (TCM) was the dominant product among all DBPs detected. The anammox effluent has a low specific TCM formation potential of 0.778 μmol/mmol C and a trichloronitromethane (TCNM) formation potential of 0.0725 μmol/mmol C, leading to a TCM and TCNM formation potential ratio of 10.7. We found that substrate utilization of anammox did not enhance DBP yields, and the DBP formation potential decreased after 10 hour starvation. High pH conditions stimulated the production of TCM precursors in the anammox reactor. Humic acid-like and protein-like substances were identified in the EEM spectra of anammox effluents.

Graphical abstract: Evaluation of disinfection by-products (DBPs) formation potential in ANAMMOX effluents

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Publication details

The article was received on 28 Apr 2018, accepted on 28 Jun 2018 and first published on 12 Jul 2018


Article type: Paper
DOI: 10.1039/C8RA03663B
Citation: RSC Adv., 2018,8, 25133-25140
  • Open access: Creative Commons BY-NC license
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    Evaluation of disinfection by-products (DBPs) formation potential in ANAMMOX effluents

    S. Wang, J. Fu, H. Yang, B. Zhang, X. Shi and J. Zuo, RSC Adv., 2018, 8, 25133
    DOI: 10.1039/C8RA03663B

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