Sabesp - Tratamento de Água

The Importance of Water and Its Treatment

The Essential Role of Water

• Marina Peron introduces the topic, emphasizing that water is one of our most precious resources, essential for life, food preparation, personal hygiene, and leisure activities.

• Water is also a critical raw material in industrial production and manufacturing goods.

• Despite two-thirds of the Earth being covered by water, only 3% is freshwater suitable for human consumption; less than 1% is readily available for use.

• The finite nature of potable water becomes evident as population growth continues while the amount of available water remains unchanged from centuries ago.

Understanding Water Supply Systems

• The Sabesp (Basic Sanitation Company of the State of São Paulo) plays a crucial role in treating and distributing water to the population.

• The Cantareira system is highlighted as the largest producer in São Paulo, supplying treated water to 9 million residents with a capacity to treat 33,000 liters per second.

Water Treatment Process

• The journey of water begins at reservoirs near Minas Gerais and involves complex systems ensuring gravity-fed flow through various interconnected reservoirs before reaching treatment stations.

• At the Guaraú treatment station, water travels approximately 100 km through tunnels and channels before undergoing treatment processes.

Steps in Water Treatment

• Initial treatment includes adding coagulants like aluminum sulfate or ferric sulfate to remove solid materials such as leaves and debris.

• Chlorine is applied next to eliminate microorganisms; then flocculation occurs where particles clump together into larger flocs for easier removal during sedimentation.

Ensuring Quality Control

• After sedimentation, remaining impurities are filtered out using sand and activated carbon. Regular backwashing maintains filter efficiency.

• A final chlorine addition ensures safe drinking quality before fluoridation reduces dental caries rates by 65%.

Community Responsibility in Water Conservation

• While Sabesp ensures high-quality water supply certified by ISO standards, individual responsibility is crucial. Residents should maintain clean storage tanks and use water wisely.

• Practical tips include minimizing tap usage during daily tasks like brushing teeth or washing dishes to prevent wasteful practices.

The Importance of Water Conservation

Understanding Water Waste

• A dripping faucet can lead to significant water waste, with estimates suggesting that a single tap leaking for 30 days can waste up to 1380 liters of water.

• The effort required to treat and manage the water we use is substantial, highlighting the need for responsible consumption practices.

• Encouraging discussions about rational water usage among friends and neighbors is essential in promoting awareness and conservation efforts.

• Taking personal responsibility in conserving water benefits not only individuals but also contributes positively to the environment.