Innovative technology for obtaining bioenergy through the process of advanced anaerobic digestion

Abstract

In many countries, sustainable management, as well as preventing the accumulation and reducing the quantities of waste have become major political priorities, representing an important contribution to the joint efforts to reduce pollution, greenhouse gas emissions and to reduce climate changes at global level. Real actions against global warming represent one of the main priorities of the European energy and environment policies. The European Directives regarding the production of renewable energy, the reduction of GHG emissions and sustainable waste management are based on the commitment of member states to implement adequate measures to fulfil them. The production and use of biogas from anaerobic digestion has the potential to satisfy all the three directives simultaneously. The paper presents an innovative integrated technology for obtaining bioenergy by the means of a mixed system of advanced anaerobic digestion simultaneously in two types of digesters through the process of wet, respectively dry fermentation. The two types of digesters are integrated in a modular system designed and built so that is possible to transport it easily form a micro farm to another. The innovative technology for obtaining biogas through advanced anaerobic digestion will be equipped with a real time command and control system of the methanogenesis process, the necessary energy being ensured by using photovoltaic panels. The results obtained through the innovative technology consisting in a modular system with digesters for wet and dry fermentation of agricultural waste allowed to practically fulfil the concept of farmer energetic independence by using renewable energy sources (biogas, photovoltaic panels, agricultural waste, etc.) and to reduce GHG through the controlled neutralization of important quantities of agricultural waste that otherwise would generate important CO2 quantities into the atmosphere.