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Mitigation strategies of hydrogen sulphide emission in sewer networks - A review

Park,K, Lee,H, Phelan,S, Liyanaarachchi,S, Marleni,N, Navaratna,D, Jegatheesan,V and Shu,L 2014, Mitigation strategies of hydrogen sulphide emission in sewer networks - A review, International Biodeterioration and Biodegradation, vol. 95, pp. 251-261, doi: 10.1016/j.ibiod.2014.02.013.

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Title Mitigation strategies of hydrogen sulphide emission in sewer networks - A review
Author(s) Park,K
Lee,H
Phelan,S
Liyanaarachchi,S
Marleni,N
Navaratna,D
Jegatheesan,V
Shu,L
Journal name International Biodeterioration and Biodegradation
Volume number 95
Start page 251
End page 261
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2014-11
ISSN 0964-8305
Keyword(s) Chemical addition
Corrosion
Hydrogen sulphide
Odour
Science & Technology
Life Sciences & Biomedicine
Biotechnology & Applied Microbiology
Environmental Sciences
Environmental Sciences & Ecology
WASTE-WATER
GRAVITY SEWERS
SYSTEMS
DOSAGE
RATES
TRANSFORMATIONS
STOICHIOMETRY
OPTIMIZATION
OXIDATION
BIOFILMS
Summary Hydrogen sulphide (H2S) gas emission in sewer networks is associated with several problems including the release of dangerous odour to the atmosphere and sewer pipe corrosion. The release of odour can endanger public health and corrode sewer pipe walls. Sewer corrosion has the potential to cost water utilities millions of dollars to maintain and rehabilitate the affected sewer pipes. Some chemical mitigation strategies to control hydrogen sulphide emission have been introduced. These include but are not limited to the injection of oxygen, magnesium and sodium hydroxide, calcium nitrate and iron salts. The optimisation of the dosing rate and location of each chemical mitigation strategy is required to achieve maximum hydrogen sulphide gas removal efficiency along with cost effectiveness. In this review paper, the five most popular chemical mitigation strategies that were previously mentioned have been investigated and discussed. The article is broken down into three main discussions. Firstly the sewer transformation processes and factors affecting the hydrogen sulphide generation and emission are highlighted. Secondly, comparisons and differences between each selected chemical mitigation strategy as well as its application covered. Finally, the review of the chemical efficiency and cost is conducted by comparing two case studies in controlling the formation of dissolved sulphide. It was found that the injection of oxygen is the cheapest mitigation strategy of hydrogen sulphide gas generation in sewers, but least effective.
Language eng
DOI 10.1016/j.ibiod.2014.02.013
Field of Research 090499 Chemical Engineering not elsewhere classified
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30073005

Document type: Journal Article
Collection: School of Engineering
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