Proposal of Water Purification Technologies for the largest cities in Brazil.

Martin Rejmont

Bachelor's thesis

Abstract:

Brazil, a country rich in water resources. It is estimated that Brazil alone has up to 13% of the world's drinking water supply. Despite this fact, there have been serious crises in recent years, when there were historically, the largest droughts, that were not accustomed to the inhabitants of Brazil. A country, rich in enough raw materials needed to live, in recent years, has had to deal with the catastrophic levels of its reservoirs that feed some of the world's largest cities. The tanks in Sao Paulo had only 5% water capacity in the worst time, and the situation in Rio de Janeiro was even worse. Their tanks had reached only 1% of capacity.After the first study of this issue, it turned out that one of the major problems was the state of the water pipeline, which accounts for up to 30% of the losses. The cause of these losses was a very poor state of infrastructure and illegal connection to the water supply system. The lack of financial subsidies led to this situation.Slums that grew up near large cities only worsened the situation. These areas, in the vast majority, are illegal and are without connection to water and sewerage systems. As a result of this situation, the drinking water sources were polluted and drinking water was reduced. At the time of the crisis, these resources could not be exploited, and the situation worsened.One of the primary causes of water scarcity was the felling of the Amazon forest, and hence the reduction of the strength of the air rivers and the phenomenon known as "El Ňiňo".The solution to these situations was the fight against primary causes such as education of citizens on issues and improvement of water management in countries and cities.

Keywords

water purification technologies, Sao Paulo, Rio de Janeiro, drinking water, drought, agriculture, Brazil

Language used: English

Date on which the thesis was submitted / produced: 17. 4. 2019

Thesis defence

• Supervisor: doc. Ing. Vladimír Krepl, CSc.
• Reader: Jakub Štibinger, CSc.

Czech University of Life Sciences Prague

Faculty of Tropical AgriSciences

Bachelor programme / field:
Agricultural Specialization / Agriculture in Tropics and Subtropics