Agro-industrial waste: an economic, social and environmental challenge The Polytechnic course dedicated to agro-industrial waste has concluded
Agro-industrial waste represents an economic, social and environmental challenge within a traditional linear economic model. However, the innovative perspectives of the circular economy and the bioeconomy pave the way for a revolutionary approach: in this context, the course Agro-Industrial Waste Valorisation According To Circular Economy Pillars is proposed as a training opportunity for an advanced management of this waste, converting it from a problem to a resource.
The course, born within the Spoke 7, is a bold initiative aimed at transforming agro-food waste into valuable resources. The course was attended by 7 students with different backgrounds, including management and chemical engineering students, biotechnology students, doctors in agronomy, and mechanical engineering. The course was designed by Tonia Tomassi and Francesca Demichelis of the Politecnico di Torino.
The program addressed the study of consolidated and innovative processes to convert agro-industrial waste into high added value products and bioenergy. The students explored the concept of sustainability and biorefinery, applying them in the processes studied. In particular, the evolution of the concept of sustainability at global, European and Italian level was examined. Subsequently, biorefineries were analyzed, understanding their differences from traditional refineries, and the technical, environmental and economic feasibility of scaling up the processes from laboratory to industrial scale was studied.
After acquiring these tools, students delved into thermochemical and biochemical processes for the production of high added value products and energy. The processes were analyzed from a technical point of view, understanding the operating conditions, and case studies including environmental and economic assessments were presented.
In the practical sessions, students studied the fermentation process for the production of hydrogen in the industrial chemistry laboratory of the Polytechnic University of Turin. Here they learned in a practical way how reactors work, how to manage biomass, the importance of pre-treatments and the operating conditions of the process.
At the end of the course, students acquired the ability to evaluate the effectiveness of a process through three fundamental pillars: technical feasibility, economic viability and environmental sustainability. This training experience allowed them to understand how to manage and conduct technically feasible production with a reduced economic and environmental impact, in line with goal 12 of the 2030 Agenda. The interaction between students and teachers was intense and enriching, with curiosity being the key word throughout the training course.