Universidade Presbiteriana Mackenzie, Campus Campinas - Campinas - São Paulo - Brasil
With online streaming
The circular economy plays an essential role in materials reinsertion in
a productive chain, and it is a supportive way to achieve economic growth and
change the linear economy based on fossil resources.
The reuse of by-products from conventional industrial processes as
feedstock in innovative technological routes leads to a novel approach for
biorefinery development in the circular economy. An integrated close-to-zero
waste system exploiting a sequential process with anaerobic digestion can be
proposed as a model system for the circular economy transition.
Implementing anaerobic digestion technology can be a strategy for the
management by-products and the recovery of biogas and digestate. The biogas
produced can be upgraded to biomethane, electricity, and thermal energy. The
use of biogas can be an alternative to the decentralized production of electric
energy, supporting the diversification of energy resources. Thermal energy can
also be used by the industries. It can avoid the use of natural gas-based on
fossil fuel, which is an environmental perspective to decrease greenhouse gases
emissions.
Therefore, the development of a new management system based on anaerobic
digestion could be a sustainable model to contribute to the development of the
agriculture and food sector by decreasing the wastes generated and reducing the
greenhouse gas emissions by producing renewable resources and marketable
products, reaching the goals of the circular economy.
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