Water Management and Water Loss

Stuart Hamilton

ISBN 10: 1780406355 / ISBN 13: 9781780406350

Verlag: IWA Publishing Okt 2014, 2014

Beschreibung

Neuware - Water Management and Water Loss contains a selection of papers and articles written by various internationally recognised specialists in the field of water loss reduction. The articles have been drawn together from IWA conferences during the past 5 years and provide details of how water losses from Municipal distribution systems can be reduced. The book provides useful background information and reference materials to help explain the different approaches and interventions that are used to reduce water losses. Numerous real case studies are provided that highlight the processes and methodologies employed around the world to reduce water losses. Water Management and Water Loss covers many aspects of water loss control including, pressure management, leak detection and repair, Internal plumbing losses and retrofitting, community involvement and education/awareness, schools education and leak repair projects. Authors: Stuart Hamilton, Hydrotec Ltd.,Thorpe Underwood, Northants, UK and Ronnie McKenzie, Groenkloof, Pretoria, South Africa.

Bestandsnummer des Verkäufers 9781780406350

Bibliografische Details

• Titel: Water Management and Water Loss
• Verlag: IWA Publishing Okt 2014
• Erscheinungsjahr: 2014
• Sprache: Englisch
• ISBN-10: 1780406355
• ISBN-13: 9781780406350
• Einband: Taschenbuch
• Zustand: Neu
• Abmessungen: 246B x 195 H x 15 T Millimeter Breite: 246 mm, Höhe: 195 mm, Tiefe: 15 mm
• Gewicht: 402 Gramm

Über diesen Titel

Inhaltsangabe

Water Management and Water Loss contains a selection of papers and articles written by various internationally recognised specialists in the field of water loss reduction. The articles have been drawn together from IWA conferences during the past 5 years and provide details of how water losses from Municipal distribution systems can be reduced.

The book provides useful background information and reference materials to help explain the different approaches and interventions that are used to reduce water losses. Numerous real case studies are provided that highlight the processes and methodologies employed around the world to reduce water losses. Water Management and Water Loss covers many aspects of water loss control including, pressure management, leak detection and repair, Internal plumbing losses and retrofitting, community involvement and education/awareness, schools education and leak repair projects.

Authors: Stuart Hamilton, Hydrotec Ltd.,Thorpe Underwood, Northants, UK and Ronnie McKenzie, Groenkloof, Pretoria, South Africa

Auszug. © Genehmigter Nachdruck. Alle Rechte vorbehalten.

Water Management and Water Loss

By Stuart Hamilton, Ronnie McKenzie

IWA Publishing

Copyright © 2014 IWA Publishing
All rights reserved.

ISBN: 978-1-78040-635-0

Contents

Chapter 1 Introduction, 1, 
Chapter 2 Leak detection technologies, 5, 
Chapter 3 Principles of pressure management, 19, 
Chapter 4 The repair or replace dilemma Jo Parker, 51, 
Chapter 5 Community awareness and education, 69, 
Chapter 6 Meter logging and recording, 87, 
Chapter 7 Large consumer meter consolidation and improvements: Planning, implementation and benefits, 109, 
Chapter 8 Software tools to assist with water loss reduction in municipal systems, 121, 
Chapter 9 International case studies from around the world, 143, 
Chapter 9.1 Application in water loss reduction project in Bosnia and Herzegovina Ðevad Koldzo and Branko Vucijak, 144, 
Chapter 9.2 Large scale water loss management improvement programme in Zagreb (Croatia) water distribution network Kristijan Ilicic, Jurica Kovac, Vlado Herceg, Berislav Bohatka, Mario Medven and Ivan Grdenic, 151, 
Chapter 9.3 Analysis of the water losses from the aspect of central water meters in objects of collective housing Bajci Angela and Radovanov Milenko, 160, 
Chapter 9.4 Water loss management in Novi Sad water utility, Serbia Zlatko Arvaji and Ikonija Karadzic, 170, 
Chapter 9.5 Continuous acoustic monitoring – evolution of an innovation in the USA David Hughes, 176, 
Chapter 9.6 Establishing the first validated dataset of North American water utility water audit data A. Chastain-Howley, G. Kunkel and W. Jernigan, 182, 

CHAPTER 1

Introduction

Water losses from municipal reticulation systems are becoming a serious problem throughout the world and particularly in developing countries where lack of funds often results in poor maintenance of the water infrastructure. In some areas, the water losses are now estimated to be higher than the actual legitimate water use and the situation is gradually deteriorating to such an extent that intermittent supply is now the norm rather than the exception in some parts of the world.

The International Water Association has identified water loss from municipal systems as one of the most important issues facing a world where the ever increasing population is placing additional strain on systems which are already failing to meet the current demands. In response to these problems, the Water Losses Specialist Group was formed and has emerged as one of the most active and significant groups within the IWA. Its key function is to share the knowledge from specialists throughout the world to assist water suppliers to manage and reduce their water losses. Through the efforts of the group, many new and innovative techniques have been developed to measure, monitor and analyse water losses from municipal water supply systems. A standard water balance has been developed which is now widely accepted worldwide and enables water suppliers to quantify the magnitude of their water losses in a standard and pragmatic approach after which they can select the most appropriate interventions for a specific area. No "one-size fits all" solution is appropriate when trying to deal with water losses and it is important to understand that each area has its own set of problems, some of which may be common to other areas and some of which may be unique to a specific region. It is therefore necessary to identify the key problems and to implement the appropriate interventions.

This book provides a basic overview of the key issues frequently experienced by water supply managers in both developing and developed countries. It is designed to assist water supply managers to understand the problems experienced in their own systems and provides advice on how the problems can be addressed through examples and practical case studies. The book is non-academic and is aimed at providing information and advice in a practical and easy to understand manner. The book is basically a collection of case studies and practical experience from numerous water loss specialists who have worked around the world and have experienced both 'best practice' and the opposite extreme. It is hoped that by providing such examples and case studies, water supply managers and those employed to assist them, can benefit from both the successes and failures discussed in the book.

1.1 THE TECHNOLOGY MATRICES

The choice of a particular leak detection/location technique and technology depends on the operating conditions and construction material of the pipeline in question. To assist in making this determination, four different matrices have been developed.

(1) Mains fittings only – high pressure

• For leakage detection on mains fittings only (no house connections) with pressures greater than 10 m head or 15 psi. Fittings are at a minimum distance of 200 m apart and maximum 500 m

(2) Mains fittings only – low pressure

• For leakage detection on mains fittings only (no house connections) with pressures less than 10 m head or 15 psi. Fittings are at a minimum distance of 200 m apart and maximum 500 m

(3) Domestic and mains fittings – high pressure

• For leakage detection on all property and mains fittings with pressures greater than 10 m head or 15 psi. Fittings are at a minimum distance of 10 m apart and maximum 50 m

(4) Domestic and mains fittings – low pressure

• For leakage detection on all property and mains fittings with pressures less than 10 m head or 15 psi. Fittings are at a minimum distance of 10 m apart and maximum 50 m

The matrices consider the following pipeline materials:

• Metallic

* Includes steel, ductile iron and other ferrous materials

• Concrete

* Includes reinforced concrete, pre-stressed concrete pipe (PCP)

• Asbestos cement

• Glass-reinforced plastic (GRP)

• Polyvinyl chloride (PVC)

• Polyethylene

* MDPE medium density poly ethylene

* HDPE high density poly ethylene

The technologies available are discussed in more detail later in this document. The equipment has been placed in the selected categories where it is reliably successful. The equipment may sometimes be successful in other categories but not reliably so.

Note that new equipment is continuously being developed: these matrices only take into account equipment that was available during the preparation of the matrices (up to December 2012).

1.1.1 Main pipelines only – high pressure

This matrix is for leakage detection on mains fittings only (no house connections) with pressures greater than 10 m head or 15 psi. Fittings are at a minimum distance of 200 m apart and maximum 500 m.

1.1.2 Main pipelines only – low pressure

This matrix is for leakage detection on mains fittings only (no house connections) with pressures less than 10 m head or 15 psi. Fittings are at a minimum distance of 200 m apart and maximum 500 m.

1.1.3 Domestic and mains fittings – high pressure

This matrix is for leakage detection on all property and mains fittings with pressures greater than 10 m head or 15 psi. Fittings are at a minimum distance of 10 m apart and maximum 50 m.

1.1.4 Domestic and mains fittings – low pressure

This matrix is for leakage detection on all property and mains fittings with pressures less than 10 m head or 15 psi. Fittings are at a minimum distance of 10 m apart and maximum 50...