To consume implies in efficient solutions about how to treat and dispose properly urban solid waste produced by everyone.
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Nowadays, mainly the populations of big urban centers suffer with a dilemma: “To consume and to grow in harmony with the environment”! To consume implies in efficient solutions about how to treat and dispose properly urban solid waste produced by everyone, and to grow implies in where to take from the alternative raw material that would help with the great demand of consumption of products by the growing population with the lowest impact to the environment.
The traditional methods consist in collecting and disposing these wastes in landfill sites, or even deposits in the open, and in less quantity, incineration and or other ways of disposing. These processes have shown very low efficiency over the years due to outdates methods. Given the new needs: technical, logistic, financial and environmental, because of the accelerated raising of the population, more and more alternatives become necessary. Recent studies confirm that this is a matter of great concern all around the world.
In Brazil, according to ABRELPE - Associação Brasileira de Empresas de Limpeza Pública e Resíduos Especiais (Brazilian Association of Companies of Public Cleaning and Special Residues), in 2013, 45% of Brazilian cities generated 76 million tons of solid wastes. And 24 million tons were disposed inappropriately. Currently, in Brazil, the cost to collect a ton of solid wastes is R$ 50.00 in average; to dispose properly it costs about another R$ 50.00. Maybe this (the high cost) is the main reason why at least 40% of the wastes are not disposed properly in this country.
In many other countries, the inappropriate disposal is even larger, increasing the environmental damage and jeopardizing the life in our planet in a future not so far. According to estimates of PNUMA – Programa das Nações Unidas para o Meio Ambiente (United Nations Program for the Environment), up to 2025, the solid wastes in the world with increase from 1.3 billion tons to 2.2 billion tons. In financial terms, only the industry of recycling solid wastes in the USA (United States of America) is a business that moves about 120 billion dollars every year with the current recycling conditions.