The use of artificial aeration in horizontal sub-surface flow constructed wetlands for tertiary nitrification

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dc.contributor.advisor Dotro, Gabriela
dc.contributor.advisor Jefferson, Bruce
dc.contributor.author Butterworth, Eleanor
dc.date.accessioned 2014-08-15T09:10:21Z
dc.date.available 2014-08-15T09:10:21Z
dc.date.issued 2014-03
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/8642
dc.description.abstract Increased treatment capability is required on small sewage treatment works to meet ammonium consents that are tightening to effluent concentrations of below 5 mg[Ammonical nitrogen (mg/L)] and in some cases as low as 0.5mg[Ammonical nitrogen (mg/L)] Optimisation of existing assets is preferential over the addition or expansion of the works to minimise associated costs and energy usage. Many small works in the UK currently employ horizontal sub-surface flow constructed wetlands (HSSF CWs) that have restricted capability to nitrify due to limited oxygen transfer and as such artificial aeration has been proposed as a potential upgrade technology. To assess the performance of the technology, full- scale sites were monitored in terms of ammonium and solids removal and hydraulic characterisation over 3 years. Supporting pilot studies were carried out to assess the effect of aeration on the planted vegetation and to determine optimum transfer efficiencies. Cont/d. en_UK
dc.language.iso en en_UK
dc.publisher Cranfield University en_UK
dc.rights ©Cranfield University, 2014. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright holder en_UK
dc.title The use of artificial aeration in horizontal sub-surface flow constructed wetlands for tertiary nitrification en_UK
dc.type Thesis or dissertation en_UK
dc.type.qualificationlevel Doctoral en_UK
dc.type.qualificationname PhD en_UK


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