Reports
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Leakage Index Curve and the Longer-Term Effects of Pressure Management
Price: £100
Ref: 03/WM/08/29
ISBN: 1-84057-280-9
Published: 2003
This project considers the various methods available of predicting both the short and long term effects of pressure management. The report concludes that there is little practical difference between the methods for the majority of conditions but some have advantages at the extremes and that there is a large variability in pressure-leakage relationships for individual zones. The main recommendation is that a linear pressure-flow relationship can be used in large zones, or where high precision of results is not a priority. There is no evidence of a relationship between pressure and mains repair frequency. Keywords: leakage management, pressure management
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Tightening WwTW Emission Standards - A Review of the Treatment Technologies And Their Impact On Climate Change
02/WW/04/1 - ISBN: 1-84507 259 0This study examines the feasibility of meeting tighter effluent quality standards at wastewater treatment works. The impact of these tight standards on energy use, greenhouse gas (GHG) emissions and costs has been assessed. ... More...
Price: £150
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Cost Effective Leakage Survey Practice
04/WM/08/31 - ISBN: 1-84057-325-2A framework has been developed for processing and analysing cost and effectiveness data for DMA prioritisation and leak detection techniques. Initial guidance on suitable assessment criteria is also presented in the report. T... More...
Price: £280
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Leakage Estimation from Night Flow Analysis
99/WM/08/21 - ISBN: 1 84057 158 6Existing methods for providing leakage estimates for reporting purposes, using data from continuously monitored areas are reviewed. Analysis concentrated on night use allowances and 15 minutes flow sampling intervals using s... More...
Price: £100
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A Manual of DMA Practice
99/WM/08/23 - ISBN: 1 84057 160 8The manual provides guidance to staff engaged in managing district meter areas (DMAs). It guides the practitioner through the stages of : 1. setting up and maintaining districts, 2 monitoring leakage, 3 se... More...
Price: £100
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The Natural Rate of Rise in Leakage
99/WM/08/22 - ISBN: 1 84057 159 4This research examines the theoretical and empirical determinants of the natural rate of rise in leakage (NRR) over time, in order to advance the development of an 'NRR Equation' which can be used to produce reliable estimate... More...
Price: £100
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