Use of GIS - Geographic Information. management in Central Business Unit (SABESP MC)

Transcription

1 Use of GIS - Geographic Information System - as a key tool for water losses management in Central Business Unit (SABESP MC) Alessandro Muniz Paixão Sao Paulo Water and Sanitation Company SABESP Brazil

2 Sumary SABESP and Metropolitan Region of Sao Paulo GIS SABESP - SIGNOS Aplication GIS MC and Results

3 Central Business Unit - MC Oldest infrastructure in the metropolitan region 711,000 connections 5,900 km of mains 32 bulk supply zones 214 PRV s (covering around 50.8% of the network) Averagepressure of 45 meters ILI: 5.3 (varying from to 2.7 in the supply zones) Total water losses: 397 L/conn/day (58.5% real and 41.5% apparent)

4 Sumary SABESP and Metropolitan Region of Sao Paulo GIS SABESP - SIGNOS Aplication GIS MC and Results

5 GIS SABESP - SIGNOS GIS (*) Enterprise Application Sabesp containing the spatial representation of all its physical assets (stations, fountains, aqueducts, reservoirs, networks, customers, etc.). It s integrated with leading business systems SABESP: CSI, SIGAO, NetControl e SGM (*) GIS Geographic Information System

6 SIGNOS - Formation SIGNOS assembled from integrated data (various sources) Customer Sewerage Water Networks Digital Cartographic Base

7 Spatialization of operational occurrences Customer complains Call Center Pole Maintenance receives Team performs repair Leakage Point x

8 SIGNOS - Coverage Some figures... 4,5 million connections spatialized; km networks of water distribution; km of mains; 18 water treatment plants; 80 water pumping stations; 305 reservoirs; 389 boosters; 926 PRV's; 120 mil valves;

9 SIGNOS Overview Integrating g processes

10

11

12 Sumary SABESP and Metropolitan Region of Sao Paulo GIS SABESP - SIGNOS Aplication GIS MC and Results

13 MC Strategy INVESTMENT PROGRAM OF LOSSES GOAL SIGNOS SETTING THE TARGET DIAGNOSTICS PLANNING EFFICIENT INTERVENTION

14 MC Strategy MC Real losses : 60% Apparent losses: 40% Pressure management Speed and quality of repairs Unavoidable Annual Real Losses Target Potentially Recoverable Real Losses Active leakage control Pipelines and service connections management

15 Intervention Tools Real loss management Main Intervention PRVs amount of installed (un) Total of PRVs (un) PRVs covered area (%) Periodic Surveys (km) Replacement of service connections (un) Rehabilitation of old mains (km) NC 21,3 19,5 19,5 Decrease Indicador on Losses de Perdas indicator Totais (L/lig x (l/con/day) dia) Corrigido id

16 EXAMPLE 1: Loss Management Reports Where does water come from? Losses indicator SUPPLY ZONE (l/con/day) (/ / jan/09 jun/09 DERIV IPIRANGA JARDIM AMERICA JARDIM SÃO PEDRO LAPA MOOCA PERDIZES PINHEIROS SAPOPEMBA VILA ALPINA VILA FORMOSA VILA MARIANA

17 EXAMPLE 2: Installations of PRVs Mapping of Static Pressure and PRVs areas at MC UNIDADE DE NEGOCIO CENTRO MAPA PRESSÕES ESTÁTICAS LEGENDA FAIXA DE PRESSOES ESTATICAS < 30 mca mca mca > 70 mca AV. RIC AR DO JA FET Limite VRP

18 AV. RIC ARD OJ AFE T EXAMPLE 2: Installations of PRVs in Ipiranga p g Supply pp y Zone Several Areas

19 EXAMPLE 3: Replacement of service connections Distribution of service break frequency in MC

20 EXAMPLE 3: Replacement of service connections in p Sapopemba Supply Zone

21 Example 4 : Rehabilitation of old mains Age distribution of mains in Central business Unit ( 2009)

22 Example 4: Rehabilitation of old mains in Cursino Supply Zone Before 19 km renewed/year (0.32% of total mains) After 22

23 Example 5: Apparent Losses - Case Se Region Inactive connections per block at Se Region (2009)

24 Conclusions The use of GIS for loss reduction has become essential if you want to achieve good results, concerning the complexity and the various factors involved. Another key factor is the agility obtained in the analysis, diagnostics and monitoring the results in a scenario where resources are limited and it is necessary to accelerate actions which are essential to confront the dynamism required in the operation of the Metropolitan Region of São Paulo.

25 Acknowledgment Engª Debora Soares Mellato SABESP / MCEP Engº Francisco José F. Paracampos SABESP / MC Eng Marcos Aurélio Martins SABESP / MCI Eng Nagip Cesar Abraão SABESP / MAG Tecn Roberto Abranches SABESP / MCEA

26 Thank you! Further Information: p