Wastewater Treatment. Successful Examples in São Paulo - Brazil. Sabesp Overview

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1 Wastewater Treatment Successful Examples in São Paulo - Brazil Sabesp Overview

2 Expansion of sanitation services is a major challenge in Brazil Water service Sewage service < 40% 40,1 a 60% 60,1 a 80% 80,1 a 90% > 90% < 10% 10,1 a 20% 20,1 a 40% 40,1 a 70% > 70% Source: SNIS, 2007 Sabesp in comparative perspective... Sabesp operates two of the four municipalities with better sanitation ranking in Brazil: Franca e Santos Fontes: SNIS 2007, SABESP

3 Sabesp overview Regional Systems Metropolitan Region Basic Information Foundation in 1973 Employees: 16,800 Serves the City of São Paulo and 365 out of 645 municipalities in the State Provides water to 23 million people and sewage services to 19 million people Also sells wholesale treated water to 6 municipalities (3.3 million people) Covers 60% of State's urban population Main Operational Indicators (1) Water Sewage Connections (million) Coverage (%) Treatment (%) % 100% % 72%(²) Volume Billed (m³ million) 957,2 681,9 Network (km thousand) 63,2 42,3 (1) As of June, 2009 (2) Treated sewage as percentage of collected sewage One of the largest water and sewage service providers in the world Source: Pinsent Masons water Yearbook ( ) includes 3,1 million clients in municipalities currently served on a wholesale basis

4 Municipalities Served by Sabesp 366 municipalities, approximately 60% of the state's urban population Sabesp is one the five largest sanitation companies based on the number of customers Wastewater Treatment Evolution Wastewater Treatment services to over 13 million people

5 Wastewater Treatment Evolution Wastewater Treatment services to over 13 million people Wastewater Treatment Plants Process Units Stabilization Ponds 292 Anaerobic Primary Treatment 64 Activated Sludge 50 Aerated Lagoons 25 Outfalls 5 Others 22 Total Sabesp 458 Paraguaçu Wastewater Treatment Plant Process Stabilization Pond

6 Sabesp s vision of the future In 2018 Being recognized as a company which universalized water and sewage services in the areas where it operates, in a sustainable and competitive way with focus on clients and excellence in environmental solutions Achieve universal coverage of core service by municipalities already have full water and sewage services Baixo Tietê e Grande Pardo e Grande, Baixada Santista, Baixo Panapanema e Vale do Ribeira Vale do Paraíba, Alto Paranapanema, Capivari, Jundiaí, Região Bragantina, Litoral Norte e Médio Tietê São Paulo Metropolitan Area

7 Capex plan for Total investment plan of R$ 8,6 billions for Criteria to select Wastewater Treatment Methods

8 General Rules to select Wastewater Treatment Methods Necessary Area for each Process Process Stabilization Ponds Aerated Lagoon Infiltration Upflow Anaerobic Sludge Bed Aerobic Reactor Oxidation Ditch Biodiscs Flotation Code SP AL I UASB AR OD BD FL The smaller the available area, the higher the operational costs Aerated Lagoons requires high energy costs

9 Average Treatment Costs ( Chemicals + Electricity ) Process Stabilization Ponds Aerated Lagoon Infiltration Upflow Anaerobic Sludge Bed Aerobic Reactor Oxidation Ditch Biodiscs Flotation Code SP AL I UASB AR OD BD FL Process Successful Examples in São Paulo - Brazil

10 ia lḍ a , IPDt - water loss index per connection (liters/ connection x day) IPF - water loss index (%) (% ) Universal coverage will be achieved as a result of the implementation of structural programs São Paulo metropolitan region PMA Water Supply Tietê Project Regional systems Onda Limpa (Clean Wave) South Coast program Água do Litoral program Vida Nova Program Onda Limpa (Clean Wave) North Coast program Córrego Limpo Program m /ra s litro Metas Programa Corporativo de Redução de Perdas 34,0 32,4 31,9 29, Reduce water losses Tietê Project: One of the most ambitious environmental program for the Tietê basin Investment since 1992: over of US$ 2,2 billions (with IDB funding) Improvement of sewage services to over 11 million people São Paulo Metropolitan Region population: 20 million 39 municipalities

11 Tietê Project Third Phase Target: Expansion of the sewage system in São Paulo metropolitan region Collection: 84% to 87% Treatment: 70% to 84% Served people: Sewage collection: 1.5 million Sewage treatment: 3.0 million Region: SPMR and Tietê Basin Period: Source: Sustainability Report 2008 Tietê s sewage treatment system in São Paulo Metropolitan Region WTP Barueri Capacity: 9,5 m³/s WTP Pq. Novo Mundo Capacity: 2,5 m³/s WTP São Miguel Capacity: 1,5 m³/s WTP ABC Capacity: 3,0 m³/s WTP Suzano Capacity: 1,5 m³/s The conclusion of the Third Stage of the Tietê Project increases treatment capacity more 7.4 m³/s.

12 Onda Limpa (Clean Wave) North Coast Program Investments of US$ 140 million Served people: 600 thousand fixed: 300 thousand floating: 300 thousand Onda Limpa (Clean Wave) North Coast Program Target: Expansion of the sewage index Collection: 54% to 95% Treatment: 96% to 100% 15 WTP (Wastewater Treatment Plants) 1 PCP + Outfall Ilhabela Region: North Coast (Ubatuba, São Sebastião, Ilhabela e Caraguatatuba) Period: Source: Sustainability Report 2008

13 Onda Limpa (Clean Wave) South Coast Program: One of the Largest sanitation programs in Latin America JICA funding of over US$ 780 million Increase in sewage collection: to 95% from 53% Onda Limpa (Clean Wave) South Coast Program Bertioga WTP: 84 L/s Cubatão WTP : 120 L/s Vicente de Carvalho WTP : 480 L/s Santos /São Vicente PCP: 5,300 L/s Praia Grande PCP: 1,400 L/s Total of Program 7 WTPs Mongaguá WTP : 240 L/s Itanhaém WTP : 372 L/s Peruíbe WTP1: 165 L/s Peruíbe WTP2 : 160 L/s 2 PCPs WTP: Wastewater Treatment Plant PCP : Pre Conditioning Plant

14 Outfall - Conventional Building Method Time needed (+/- 1 year) Outfall - New Technology Applied : Pipe jacking

15 Outfall - New Technology Applied : Pipe jacking This technology is worldwide used in land constructions. There are few cases for outfall building. Advantages: Reduction of risks and environment impacts; Avoid disturbs to bathers; Avoid beach interdiction; Building time reduces in 75%. Shield used in the construction Social and Environmental Impacts Conventional Method Pipe Jacking

16 Thank you Antonio César Costa e Silva

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