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Municipal gravity s...
Municipal gravity sewers: an unrecognised source of nitrous oxide
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- Short, M (författare)
- University of New South Wales (UNSW),University of South Australia
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- Daikeler, A (författare)
- Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT),University of New South Wales (UNSW)
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- Peters, Gregory, 1970 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Mann, K (författare)
- University of New South Wales (UNSW)
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- Ashbolt, NJ (författare)
- United States Environmental Protection Agency,University of New South Wales (UNSW)
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- Stuetz, RM (författare)
- University of New South Wales (UNSW)
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- Peirson, WL (författare)
- University of New South Wales (UNSW)
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(creator_code:org_t)
- Elsevier BV, 2014
- 2014
- Engelska.
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Ingår i: Science of the Total Environment. - : Elsevier BV. - 0048-9697 .- 1879-1026. ; 468-469, s. 211-218
- Relaterad länk:
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http://dx.doi.org/10...
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https://unisa.alma.e...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- Nitrous oxide (N 2 O) is a primary ozone-depleting substance and powerful greenhouse gas. N 2 O emissions from secondary-level wastewater treatment processes are relatively well understood as a result of intensive international research effort in recent times, yet little information exists to date on the role of sewers in wastewater management chain N 2 O dynamics. Here we provide the first detailed assessment of N 2 O levels in the untreated influent (i.e. sewer network effluent) of three large Australian metropolitan wastewater treatment plants. Contrary to current international (IPCC) guidance, results show gravity sewers to be a likely source of N 2 O. Results from the monitoring program revealed hydraulic flow rate as a strong driver for N 2 O generation in gravity sewers, with microbial processes (nitrification and possibly denitrification) implicated as the main processes responsible for its production. Results were also used to develop a presumptive emission factor for N 2 O in the context of municipal gravity sewers. Considering the discrepancy with current IPCC Guidelines, further work is warranted to assess the scale and dynamics of N 2 O production in sewers elsewhere. © 2013 Elsevier B.V.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik -- Annan naturresursteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering -- Other Environmental Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Miljöbioteknik -- Vattenbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Biotechnology -- Water Treatment (hsv//eng)
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
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- ref (ämneskategori)
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