Guidelines for Water Loss Reduction A Focus on Pressure Management. Emmanuel Oertlé (FHNW) & Axel Knobloch (KIT) 30 minutes

Transcription

1 Guidelines for Water Loss Reduction A Focus on Pressure Management Emmanuel Oertlé (FHNW) & Axel Knobloch (KIT) 30 minutes

2 Contents t of the presentation ti The GTZ-VAG Public-Private Partnership (PPP) Objectives of the Guidelines Structure and target groups Contents of the Technical Manual A Focus on Pressure Management Case Study: Santo Amaro, São Paulo, Brazil (SABESP) Need Assessment: Stakeholder Dialogues For more information: 2

3 The partnership idea: Joining forces for success Development-policy goals PPP Private industry s goals greater development-policy impact through cooperation between development organisations and private-sector businesses Karlsruhe Institute for Technology (KIT) Institute for Water and River Basin Management (IWG) University of Applied Sciences Northwestern Switzerland (FHNW) Institute for Ecopreneurship (IEC) 3

4 Why is this PPP needed? Problems of the past are still the problems of today Inadequate water network infrastructure Lack of maintenance Source: K. Brothers Frequent pipe bursts Water losses increase costs and reduce income Water pollution Source: K. Brothers Limited fresh water service time Water scarcity increases the potential of social conflicts Part of a solution: pressure management for water loss reduction. 4

5 Presentation of the PPP Project Problems: Pressure peaks Leakage Quantity & Missing partitioning Empty pipes quality of networks Filled with other problems liquids or wastewater Objective of the Project: To improve the capacity of water utilities for good management of water supply networks and the implementation ti of selected management tools and technical solutions in pilot areas Focus: Pressure Management (PM) 5

6 Three areas of intervention ti Guidelines 1. Development of guidelines Composed of three documents for different target groups Understanding the need for Water Loss Management Finding adequate solutions and methodologies 2. Capacity building Trainings Selected pilot countries Multipliers Stakeholder Dialogue 3. Demonstration & Implementation of PM in pilot areas Contribute to the technical training Introduce Pressure Management Technology 6

7 Objectives of the Guidelines Source: A. Knobloch Source: P. Klingel Source: A. Knobloch Where? Understanding water losses How? Why? How much? Source: VAG-Armaturen GmbH Source: T. Diettrich, Gelsenwasser AG Source: A. Knobloch Source: M. Brenner, KIT 7

8 Objectives of the Guidelines Reduced operational & capital costs Increased service life of water distribution systems Reduced health risks Source: A. Knobloch Source: P. Klingel Source: A. Knobloch Understanding the need for water loss management Increased security of supply Source: VAG-Armaturen GmbH Improved customer satisfaction Reduced ecologic stress Less infrastructure damages & repair efforts Source: T. Diettrich, Gelsenwasser AG Source: A. Knobloch Source: M. Brenner, KIT 8

9 Objectives of the Guidelines Source: VAG-Armaturen GmbH Source: Finding adequate solutions and methodologies Sourcewww.zewe-gmbh.de Source: VAG-Armaturen GmbH 9

10 Structure t and target t groups The structure of the Guidelines: Awareness Technical backgrounds & solutions Examples Technical Manual Foreword Introduction Understanding Strategy Prerequisites Methods Case Studies Brochure for decision makers Working Materials 10

11 Structure t and target t groups The structure of the Guidelines: Technical Manual Foreword Introduction Understanding Strategy Prerequisites Methods Case Studies 1 set of modular Training Materials (PowerPoint presentations) 11

12 Structure t and target t groups The Guidelines aim at 3 target groups: Brochure for decision ma akers Source: www2.tntech.edu Group 1 Decision makers of national water ministries and / or authorities, water utilities and professional associations. Technical Manual Group 2 Technical directors, planning & design engineers and technicians from water utilities. Source: Working Materials Group 3 Engineers, technicians and operational personnel from water utilities. Source: VAG-Armaturen GmbH 12

13 Structure t and target t groups Availability of the Guidelines: Brochure for decision ma akers As hardcopy (via GTZ) or download from the project website at Technical Manual Training Materials Working Materials Downloadable from the project website 13

14 Chapter 1 & 2: Preface and Introduction present the GTZ-VAG public-private partnership (PPP), point out the objectives of the PPP, raise the awareness for the significance and importance of water loss reduction, highlight the (financial) benefits of NRW reduction, emphasise the outstanding potential of pressure management for reduction of real water losses and to produce interest in participating actively in the PPP (pilot projects, trainings, multiplication, etc.). 14

15 Chapter 3: Understanding water losses Definitions and terminology Key influencing factors Real losses Apparent losses Wastage 15

16 Chapter 3: Understanding water losses Definitions and terminology Key influencing factors Real losses Apparent losses Wastage 16

17 Chapter 3: Understanding water losses Definitions and terminology Key influencing factors Real losses Apparent losses Wastage Source: A. Knobloch 17

18 Chapter 3: Understanding water losses Definitions and terminology Key influencing factors Real losses Apparent losses Wastage Source: T. Diettrich, Gelsenwasser AG 18

19 Chapter 3: Understanding water losses Definitions and terminology Key influencing factors Real losses Apparent losses Wastage Source: 19

20 Chapter 4: Developing a strategy for water loss reduction The need for water loss management Analysis of the present status Identification of appropriate p measures Design and implementation of a water loss control programme 20

21 Chapter 4: Developing a strategy for water loss reduction The need for water loss management Analysis of the present status Identification of appropriate p measures Design and implementation of a water loss control programme 21

22 Chapter 4: Developing a strategy for water loss reduction The need for water loss management Analysis of the present status Identification of appropriate p measures Design and implementation of a water loss control programme 22

23 Chapter 4: Developing a strategy for water loss reduction The need for water loss management Analysis of the present status Identification of appropriate p measures Design and implementation of a water loss control programme Source: www. propertyslovenia.si 23

24 Chapter 5: Basic prerequisites for sustainable NRW management Information systems and water loss management GIS basics Land base Network register Hydraulic network model Failure data base Customer information system 24

25 Chapter 5: Basic prerequisites for sustainable NRW management Information systems and water loss management GIS basics Land base Network register Hydraulic network model Failure data base Source: Customer information system 25

26 Chapter 5: Basic prerequisites for sustainable NRW management Information systems and water loss management GIS basics Land base Network register Hydraulic network model Failure data base Customer information system 26

27 Chapter 5: Basic prerequisites for sustainable NRW management Information systems and water loss management GIS basics Land base Network register Hydraulic network model Failure data base Customer information system 27

28 Chapter 5: Basic prerequisites for sustainable NRW management Information systems and water loss management GIS basics Land base Network register Hydraulic network model Failure data base Customer information system 28

29 Chapter 5: Basic prerequisites for sustainable NRW management Information systems and water loss management GIS basics Service Breaks Mains Breaks Before Pressure Management After Pressure Management Land base 40 Network register Reduction in Service Breaks 73% Reduction in Mains Breaks 56% Hydraulic network model 10 Failure data base Customer information system 0 Month Source: Gold Coast Water 29

30 Chapter 5: Basic prerequisites for sustainable NRW management Information systems and water loss management GIS basics Land base Network register Hydraulic network model Failure data base Customer information system 30

31 Chapter 6: Methods and instruments for water loss reduction Taking action against real water losses District metered areas (DMAs) Pressure management Active leakage control (ALC) Leak repair Infrastructure management 31

32 Chapter 6: Methods and instruments for water loss reduction Taking action against real water losses District metered areas (DMAs) Pressure management Active leakage control (ALC) Leak repair Infrastructure management Based on Leakage Management and Control, WHO,

33 Chapter 6: Methods and instruments for water loss reduction Taking action against real water losses District metered areas (DMAs) Pressure management Active leakage control (ALC) Leak repair Source: VAG Armaturen GmbH Infrastructure management 33

34 How do we understand d Pressure Management (PM) 34

35 The different types of pressure modulation (simplified) 35

36 Classification of the different components for PR Modulation Modulation Valve Inlet & Location Type Type DMA Local Point Fixed Outlet Diaphragm Single Inlet Critical Point Time-based Plunger Multiple Inlets Flow / Demand Based Dynamics DMAs Micro & Macro DMA 36

37 7 Typical Use Cases Use Case 1a 1b Pressure Management Solution Local point modulation with single inlet, diaphragm valve with fixed outlet pressure Customized solution 2 Local point modulation with single inlet, diaphragm valve with time or flow modulation 3 Local point modulation with single inlet, plunger valve with time or flow modulation 4 Critical point modulation with single inlet and diaphragm valve 5 Critical point modulation with single inlet and plunger valve 6 Critical point modulation with multiple inlet and plunger valve 7 Dynamic DMA 37

38 Pressure Management help for decision i diagram 38

39 Chapter 6: Methods and instruments for water loss reduction Taking action against real water losses District metered areas (DMAs) Pressure management Active leakage control (ALC) Source: Leak repair Infrastructure management 39

40 Chapter 6: Methods and instruments for water loss reduction Taking action against real water losses District metered areas (DMAs) Pressure management Active leakage control (ALC) Leak repair Infrastructure management Source: PPP 2-Objectives 3-Structure 4-PM 5-Content 6-Case Study 7-Dialogue 8-Website

41 Chapter 6: Methods and instruments for water loss reduction Taking action against real water losses District metered areas (DMAs) Pressure management Active leakage control (ALC) Leak repair Infrastructure management Source: RBS wave 1-PPP 2-Objectives 3-Structure 4-PM 5-Content 6-Case Study 7-Dialogue 8-Website 41

42 Chapter 7: Case studies Santo Amaro / Brazil - Reducing water losses by pressure management Ain Al Basha, Amman / Jordan - Water losses reduced by up to 40% Lima / Peru Pressure management training modules Ouagadougou / Burkina Faso - Hydraulic modeling 42

43 Management Summary Santo Amaro, São Paulo Water losses without pressure management Jan Sept Water savings [m³/month] [%] time based modulation % Oct Jan remote node based modulation % Feb Jun New pipe breaks reduced approximately 50%! ROI: project pay back time of 4-5 months! 43

44 Stakeholder Dialogue Beirut, Lebanon, Mai 2010 (2 days) 47 participants representing 4 countries ti (Lebanon, Jordan, Syria & Palestine) Mosaic of officials (technician engineers, middle managers, directors, general directors, Secretary General of ACWUA) Workshop I & II Capture participants recommendations for further development of the guidelines Workshop III: Next steps 44

45 St k h ld Dialogue Stakeholder Di l Main M i Outputs O t t Significant commitment of participants at all levels was observed WLR is of relevance for all participants ti i t WLR is a professional challenge ((needs commitment & continuous process) Capacity Building is essential PM should be considered when planning new water supply networks 2 more Stakeholders Dialogues will be held (Africa and Latin America) 45

46 The Pressure Management Homepage waterloss reduction com 46

47 Thank you for your attention! ti 47