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Treatment of seasonal wastewater flows in a two-pond system

Treatment of seasonal wastewater flows in a two-pond system
Treatment of seasonal wastewater flows in a two-pond system
A waste stabilisation pond system comprising two ponds was used to treat a seasonal discharge from a summer campsite in the UK. Despite a short retention time and relatively high surface loading, the first pond was able to acclimate rapidly to the incoming wastewater, although dissolved oxygen (DO) concentrations remained low. Successful operation was due in part to initial dilution of incoming load at the start of the season by treated water retained over the winter period. The two ponds in series produced a final effluent which met typical chemical and biochemical oxygen demand standards for discharge to inland waters; as expected nutrient concentrations were above typical limit values, making land application for irrigation a preferred option. The system performance was adversely affected by short periods (3–4 days) of low average light intensity, leading to reduced chlorophyll-a and DO concentrations which did not immediately respond to subsequent increases in irradiance. A light-dark bottle technique, adapted to determine net oxygen production potentials under standard conditions of illumination, mixing and temperature, was found to provide an excellent indicator of pond metabolic status and treatment potential.
1537-5110
408-414
Whalley, Caroline P.
6079ec29-6aa9-4e7f-9ca8-4c7948e548aa
Heaven, Sonia
f25f74b6-97bd-4a18-b33b-a63084718571
Banks, Charles J.
5c6c8c4b-5b25-4e37-9058-50fa8d2e926f
Salter, Andrew M.
e0537412-9a1c-4f00-9b08-d8dce9dbc900
Whalley, Caroline P.
6079ec29-6aa9-4e7f-9ca8-4c7948e548aa
Heaven, Sonia
f25f74b6-97bd-4a18-b33b-a63084718571
Banks, Charles J.
5c6c8c4b-5b25-4e37-9058-50fa8d2e926f
Salter, Andrew M.
e0537412-9a1c-4f00-9b08-d8dce9dbc900

Whalley, Caroline P., Heaven, Sonia, Banks, Charles J. and Salter, Andrew M. (2013) Treatment of seasonal wastewater flows in a two-pond system. Biosystems Engineering, 115 (4), 408-414. (doi:10.1016/j.biosystemseng.2013.05.005).

Record type: Article

Abstract

A waste stabilisation pond system comprising two ponds was used to treat a seasonal discharge from a summer campsite in the UK. Despite a short retention time and relatively high surface loading, the first pond was able to acclimate rapidly to the incoming wastewater, although dissolved oxygen (DO) concentrations remained low. Successful operation was due in part to initial dilution of incoming load at the start of the season by treated water retained over the winter period. The two ponds in series produced a final effluent which met typical chemical and biochemical oxygen demand standards for discharge to inland waters; as expected nutrient concentrations were above typical limit values, making land application for irrigation a preferred option. The system performance was adversely affected by short periods (3–4 days) of low average light intensity, leading to reduced chlorophyll-a and DO concentrations which did not immediately respond to subsequent increases in irradiance. A light-dark bottle technique, adapted to determine net oxygen production potentials under standard conditions of illumination, mixing and temperature, was found to provide an excellent indicator of pond metabolic status and treatment potential.

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More information

e-pub ahead of print date: 19 June 2013
Published date: August 2013
Organisations: Water & Environmental Engineering Group

Identifiers

Local EPrints ID: 356559
URI: http://eprints.soton.ac.uk/id/eprint/356559
ISSN: 1537-5110
PURE UUID: 8bbeda11-a7e3-43f4-b849-b0b7266d1813
ORCID for Sonia Heaven: ORCID iD orcid.org/0000-0001-7798-4683
ORCID for Charles J. Banks: ORCID iD orcid.org/0000-0001-6795-814X

Catalogue record

Date deposited: 18 Sep 2013 14:26
Last modified: 15 Mar 2024 02:52

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Contributors

Author: Caroline P. Whalley
Author: Sonia Heaven ORCID iD
Author: Andrew M. Salter

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