Hydrogen sulfide control in sewer systems : A critical review of recent progress

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Liang Zhang
  • Yan-Ying Qiu
  • Keshab R. Sharma
  • Tao Shi
  • Yarong Song
  • Jianliang Sun
  • Zhensheng Liang
  • Feng Jiang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number120046
Journal / PublicationWater Research
Volume240
Online published6 May 2023
Publication statusPublished - 15 Jul 2023

Abstract

In sewer systems where anaerobic conditions are present, sulfate-reducing bacteria reduce sulfate to hydrogen sulfide (H2S), leading to sewer corrosion and odor emission. Various sulfide/corrosion control strategies have been proposed, demonstrated, and optimized in the past decades. These included (1) chemical addition to sewage to reduce sulfide formation, to remove dissolved sulfide after its formation, or to reduce H2S emission from sewage to sewer air, (2) ventilation to reduce the H2S and humidity levels in sewer air, and (3) amendments of pipe materials/surfaces to retard corrosion. This work aims to comprehensively review both the commonly used sulfide control measures and the emerging technologies, and to shed light on their underlying mechanisms. The optimal use of the above-stated strategies is also analyzed and discussed in depth. The key knowledge gaps and major challenges associated with these control strategies are identified and strategies dealing with these gaps and challenges are recommended. Finally, we emphasize a holistic approach to sulfide control by managing sewer networks as an integral part of an urban water system. © 2023 Elsevier Ltd

Research Area(s)

  • Electrochemical system, Free nitrous acid, Online control of chemical dosing, Sewer odor and corrosion, Sulfate-reducing bacteria, Sulfide-oxidizing bacteria

Citation Format(s)

Hydrogen sulfide control in sewer systems: A critical review of recent progress. / Zhang, Liang; Qiu, Yan-Ying; Sharma, Keshab R. et al.
In: Water Research, Vol. 240, 120046, 15.07.2023.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review