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A Literature Review of the Efficacy of Natural Systems in Removing Faecal Indicator Bacteria
Price: £100
Ref: 05/WW/21/5
ISBN: 1-84057-375-9
Two wetland types have been distinguished according to the presence of a free water surface. This feature determines the extent to which key processes, including oxygen diffusion and the balance of removal mechanisms between sedimentation and sieving, will operate. Removal of faecal indicator organisms and pathogens has been represented as a two step process, where initial retention is followed by elimination. Short-term by-pass and channelled flow, which might occur during storm-events, represents a potential problem to operational efficiency. Despite this fact, almost no intensive, event-based, sampled data exist. The majority of studies rely upon infrequent (weekly or longer) paired sampling of influent and effluent flows which are likely to be biased towards more stable flow conditions. Few data quantify seasonal changes to FIO and pathogen populations within individual wetlands. Thus, the principal data gap is event-based faecal indicator flux assessment to assess impacts on ‘protected areas’ such as bathing waters.
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UKWIR/EA Definition of Key terms for Water Resources Practitioners
97/WR/14/1 - ISBN: 1 84057 001 6A joint UKWIR/Environment Agency report that allows easy access to over 200 definitions and abbreviations. Produced for the purpose of clear communication on a common basis in the UKWIR regulatory work on water resources. In... More...
Price: £10
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On- line Instrumentation Standards and Practices
00/PC/03/1 - ISBN: 1 84057 180 2This report deals with the management and exploitation of on- line measurement in the UK water industry. The results from a survey of the perceptions of managers and practitioners are presented along with other industry data.... More...
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The Environmental Impact of Phosphorus from the Agricultural Disposal of Sewage Sludge - Stage 3
97/SL/02/4 - ISBN: 1 84057 013 XLaboratory, lysimeter and field studies continue to show wide variability the potential bioavailability of phosphorus in sewage sludge. Under operational rates of application, losses of phosphorus in run-off from plots recei... More...
Price: £100
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UKWIR/EA A Unified Methodology for the Determination of Deployable Output from Water Sources - Volume 1
00/WR/18/1 - ISBN: 1 84057 198 5This joint UKWIR/ Environment Agency project examined current practices for determination of surface water and ground water deployable output (DO) and concluded that a unified approach was both desirable and feasible. However... More...
Price: £150
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Exploring the Cost Benefit of Separating Direct Surface Water Inputs from the Combined Sewerage System
09/WM/07/13 - ISBN: 1 84057 533 6Urbanisation and climate change are increasing the volume of rainfall discharging to the public combined sewerage system, resulting in increased risk of flooding and pollution with unnecessary pumping and treatment costs.
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