Activities done during the LTTA in Madeir,. by Geolab (Laboratorio Móvel Ciencias de Terra)-
Where does the water form the island of Madiera that we use to drink come from? and how it can be polluted?
Water treatment simulation: filtration and coagulation.
Listening to Dra. Raquel Ramos
Listening carefully
Watching how the experiment works
Hands on!
TDS (Total Dissolved Solids) refers to the total amount of dissolved substances in water, including minerals, salts, and metals. It is a key indicator of water quality, affecting taste, safety, and suitability for various uses. The temperature of water is equally important, as it influences chemical reactions, solubility, and biological activity. Higher temperatures can increase the solubility of certain substances, while lower temperatures can slow down biological processes. In applications like drinking water, aquaculture, and industrial processes, maintaining optimal TDS levels and water temperature is essential for efficiency, health, and safety.
The Central Mini-Hídrica de Santa Quitéria, located in São Martinho, Funchal, Madeira, serves dual purposes: hydroelectric power generation and water treatment. With an installed capacity of 1,700 kW, it contributes to the island's renewable energy supply
In addition to energy production, the facility plays a crucial role in water management. It turbines raw water at an elevation of 325 meters before channeling it into a small reservoir. From there, the water is distributed for public supply and irrigation through automated gates.
Adjacent to the hydroelectric plant is the Estação de Tratamento de Água (ETA) Dr. Raul António Simões Duarte, also known as the ETA de Santa Quitéria. This water treatment station is designed to process surface water, handling flows ranging from 50 to 500 liters per second. It primarily supplies potable water to the Funchal municipality, especially during periods of high rainfall, benefiting areas such as São Martinho and occasionally extending to Sé, São Pedro, and Santa Luzia
Vereda dos Balcões, a well-known hiking trail in Madeira, is significant in the island's water management due to its connection to the Levada system—a network of irrigation channels that distribute water from the lush Laurisilva forest to drier regions. The trail leads to a viewpoint overlooking key water catchment areas, where mist and rainfall from the forest feed these levadas. This ecosystem plays a crucial role in water conservation, as the dense vegetation helps capture and retain moisture, ensuring a steady supply of freshwater for agriculture, hydroelectric power, and local communities. Protecting this area is vital for Madeira’s sustainable water resources
A levada in Madeira is a narrow irrigation channel or aqueduct built to transport water from the lush, rain-heavy north of the island to the drier south, where agriculture and settlements are concentrated. These channels are an essential part of Madeira’s infrastructure, dating back to the 15th century when Portuguese settlers began constructing them to ensure a reliable water supply for farming, drinking water, and hydroelectric power.
Irrigation
Levadas provide water to agricultural lands, particularly for crops like bananas, vineyards, and vegetables that thrive in the warmer and drier southern regions.
Drinking Water Supply
They contribute to the distribution of fresh water to communities, ensuring access to clean water
Hydroelectric Power
Some levadas feed water into hydroelectric plants, helping to generate renewable energy for the island.
Tourism and Hiking
Many levadas have adjacent footpaths, making them popular hiking trails with stunning views of Madeira’s landscapes.