Influence of annual climate variability on design and operation of waste stabilisation ponds for continental climates
Influence of annual climate variability on design and operation of waste stabilisation ponds for continental climates
WSPs are widely used in North America, and offer huge potential for other continental climate regions. The standard design and operating protocol is robust even at high latitudes, but may be conservative elsewhere. A simple model based on first-order kinetics for biochemical oxygen demand (BOD) is used to consider some alternative design and operating protocols, using long-term daily climate records for cities across continental central Asia. Options include changing the discharge period; retaining treated water in the pond over the winter; and changing the facultative pond loading. Annual variability in climate parameters has a major effect, in particular on the date at which treated wastewater meets appropriate standards for discharge or re-use: the earlier the discharge, the greater the variability in effluent quality. Skilful management of these systems may therefore be required to maximise their performance. While current models require development, it is clear modelling could provide tools and guidelines that would allow the design of continental climate WSP to be tailored to specific regional and local climate conditions
continental climate, waste stabilisation ponds, wastewater reuse
37-46
Heaven, S.
f25f74b6-97bd-4a18-b33b-a63084718571
Salter, A.M.
01101c0a-294f-4b7c-aa2c-b6b1b0b3ade2
Clarke, D.
9746f367-1df2-4e0e-8d71-5ecfc9ddd000
2007
Heaven, S.
f25f74b6-97bd-4a18-b33b-a63084718571
Salter, A.M.
01101c0a-294f-4b7c-aa2c-b6b1b0b3ade2
Clarke, D.
9746f367-1df2-4e0e-8d71-5ecfc9ddd000
Heaven, S., Salter, A.M. and Clarke, D.
(2007)
Influence of annual climate variability on design and operation of waste stabilisation ponds for continental climates.
Water Science & Technology, 55 (11), .
(doi:10.2166/wst.2007.368).
(PMID:17591194)
Abstract
WSPs are widely used in North America, and offer huge potential for other continental climate regions. The standard design and operating protocol is robust even at high latitudes, but may be conservative elsewhere. A simple model based on first-order kinetics for biochemical oxygen demand (BOD) is used to consider some alternative design and operating protocols, using long-term daily climate records for cities across continental central Asia. Options include changing the discharge period; retaining treated water in the pond over the winter; and changing the facultative pond loading. Annual variability in climate parameters has a major effect, in particular on the date at which treated wastewater meets appropriate standards for discharge or re-use: the earlier the discharge, the greater the variability in effluent quality. Skilful management of these systems may therefore be required to maximise their performance. While current models require development, it is clear modelling could provide tools and guidelines that would allow the design of continental climate WSP to be tailored to specific regional and local climate conditions
Text
Heaven_et_al_2007_WST_climate.pdf
- Accepted Manuscript
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Published date: 2007
Keywords:
continental climate, waste stabilisation ponds, wastewater reuse
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Local EPrints ID: 186283
URI: http://eprints.soton.ac.uk/id/eprint/186283
ISSN: 0273-1223
PURE UUID: 3b0f6a7b-b646-4b89-a4fc-37fc864ba3ea
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Date deposited: 18 May 2011 08:32
Last modified: 15 Mar 2024 02:47
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Author:
A.M. Salter
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