Hi! My name is Ana Luiza Campos and I study Chemical Engineering in Brazil.
In 2016, there was the biggest environmental accident in Brazil, envolving the Doce River, in Minas Gerais, especially in the city of Mariana. With the breaking of Fundão's dam, the tailings of iron extraction, operated by Samarco, were throwned in Gualaxo River, an affluent of Doce River, generating a flood of mud that hit several municipalities in the region and had immense impact on the conditions of the river.
Between the municipalities of Bento Rodrigues and Santa Cruz do Escavaldo, near to Mariana, where the most part of the tailings were contained, had their riparian forests ripped out by the wave of mud and mining waste, which was deposited on the banks of the River, making them almost sterile. Besides the impact in the biodiversity and biochemical conditions of the soil, the accumulation of such waste on the banks may cause a constant silting of the riverbed, especially during the rainy periods. According to this, the riparian forests's restauration helps in the fertility of the soil and in the retention of new debris that could harm the rivers.
Nowadays, recent studies have been developed to reconstruct the soil, the biodiversity and the quality of the water in the neighborhood of Mariana. One of them is organized by the Biological Science Institute (ICB), and has the objective of develop and investigate tecnologies that can restore the riparian forests, in the margins of Doce River, using plants that are resistant to the adverse environmental conditions.
Hi! My name is Ana Luiza Campos, and I am a student of Chemical Engineering in Brazil.
Water is a resource of great importance to sustainable human development, since it is present in many individual activities. However, in last years, the exaggerated consumption of this resource contributed to alarming increases of waste, affecting all societies around the world.
The Brazilian industry, for example, consumes 7% of all the water flow in the country, according to the latest information from the National Water Agency (ANA, in Portuguese). A viable alternative to fight against this great use of water is the water reuse. In Brazil, we can see closely the benefits of this adoption by the industries. The southern hemisphere’s largest undertaking devoted exclusively to the production of this resource type for this purpose in the country – specifically in the ABC region, in the state of São Paulo, and called “Aquapolo”. It is destined initially to the petrochemical industries. This idea avoids the system to deliver 650 liters per second of water to the petrochemical complex.
In addition, the chemical industry shows that is also your part to reduce the use of water in their own processes and products. According to Responsible Actuation Program, the Brazilian chemical industry has reduced 36% of water capture between 2006 and 2014. The sector has also increased the percentage of recycled effluent in their processes (4.6 m³ per ton of product in 2009 to 9.5 m³ per ton of product in 2014).
The Brazilian chemical industry initiatives are examples to be followed by other sectors and companies around the world in order to demonstrate the voluntary commitment with the continuous improvement of your performance in health, safety, environment and sustainability.
3 years 4 months
Thanks, Indika! I will follow the discussions very closely.
Hi! My name is Ana Luiza Campos, and I am a student of Chemical Engineering in Brazil.Human access to clean water and a basic sanitation quality is fundamental to many aspects of human health. In this sense, the universal and equitable access to safe drinking water, the sanitation and hygiene must safely reach the world population effectively and comprehensively. However, in these days, many developing countries still have chronic water shortage scenarios through their water infrastructure shortfalls, especially in areas far away from big cities and metropolises.
Brazil, the country where I live, is known for the large number of hydric resources, as rivers, water catchment areas and for the great coastal extension. However, the current scenario does not guarantee access to safe drink water and sanitation for all people. According to the World Bank, among the poorest 40% of the population, the percentage of households with toilets connected to the sanitation network rose from 33% in 2004 to 43% in 2013. Nevertheless, access is still low compared with the wealthier population.
Other key differences are apparent in figures for national water coverage (82.5%), wastewater (48.6%) and real wastewater treatment (39%). The lack of wastewater treatment means that pollutants are discharged directly into the water or processed in unregulated septic tanks, with serious consequences for water quality, and consequently, for the well-being of the population.
In recent years, the emergency of partnerships with the support of the private sector have been making a possible strategy to increase the access of the Brazilian population to sanitation. The BNDES (National Development Economical and Social Bank) has released notices for the hiring of technical services for structuring projects to grant basic sanitation services in many Brazilian states (Pernambuco, Alagoas, Maranhão, Pará, Sergipe and Amapá). The Brazilian Bank Foundation (FBB) has announced a new social investment to ensure access to safe drinking water within 14300 people in nine states of the semi-arid Brazilian region, with the deployment of 3588 tanks for water capture, storage and treatment.
It is important to reaffirm that the situation is far from ideal, and many people are living nowadays with precarious life conditions. We need to invest in social mobilization policies and partnerships between the various sectors of society to reduce these numbers and ensure greater life quality for our societies and future generations.
3 years 4 months
Acredito que as parcerias entre os diversos setores da sociedade são políticas que podem proporcionar inúmeras vantagens, auxiliando na redução dos índices de falta de acesso ao saneamento e à água potável para alguns indivíduos da nossa sociedade. É importante ressaltar que os menos assistidos neste panorama são as populações mais carentes, que moram em localidades distantes dos grandes centros urbanos e metrópoles, e que muitas vezes não são alvo de políticas públicas e de mobilização social para equacionar todos esses gaps estruturais. Acho que a busca por soluções através destas parcerias é muito relevante e pode sim ser um tema a ser levantado em um dos painéis do evento.
Além das parcerias entre algumas empresas, a mobilização social, que parte dos próprios cidadãos, também pode ser incentivada e merece ser discutida, principalmente em localidades do interior das grandes cidades, a partir de debates que argumentariam quais as possíveis estratégias para mobilizar as diferentes esferas do poder público com respeito ao tema.