Refining biomass residues for sustainable energy and bio-products: An assessment of technology, its importance, and strategic applications in circular bio-economy

Analysis of the Circular Economic Production Models and Their Approach in Agriculture and Agricultural Waste Biomass Management

“…The first article was published in 2015 and is titled “Fruit Waste Streams in South Africa and Their Potential Role in Developing a Bio-Economy” [ 173 ]. The most recent was published in July 2020 and it is titled “Refining Biomass Residues for Sustainable Energy and Bio-Products: An Assessment of Technology, Its Importance, and Strategic Applications in Circular Bio-Economy” [ 37 ]. The most cited article (29) was published in 2019 and is titled “A Spatial Approach to Bioeconomy: Quantifying the Residual Biomass Potential in the EU-27” [ 43 ].…”

“…By observing the net developed from the keyword co-occurrence analysis ( Figure 10 ), it can be noted that the term “bioenergy” is the most relevant. In fact, 19 percent of the articles appearing focus on the use of AWB to produce renewable energy [ 31 , 37 , 44 , 45 , 174 ] ( Figure 11 ). The terms “fertilizers” and “manures” also stand out in this net, as proven by the fact that 10 percent of the articles are about the production of fertilizers from agro-industrial by-products and their use to improve the characteristics of the cultivation soil [ 175 , 176 ].…”

“…Since this new management framework was issued, the use of the term “circular bioeconomy” has become common and much research focusing on this concept has been developed [ 34 , 35 , 36 , 37 , 38 ]. Some government policies and/or strategies have taken on this new name for the EPM [ 39 ].…”

“…Similarly, agricultural waste represents an important supply in the biological-based economy [ 43 ]. Many studies have shown that this type of biomass, in addition to having great energetic potential [ 23 , 31 , 44 , 45 ], can be used to manufacture a broad variety of bioproducts, chemicals, and food products [ 31 , 37 , 43 , 46 , 47 , 48 , 49 , 50 ]. In 2013, 17 percent of the dry matter created by primary agricultural waste generated in Europe was used as raw material for the bio-based sectors and bioenergy.…”

The Circular Economy and Organic Fraction of Municipal Solid Waste Recycling Strategies

“…As reported in literature sources creating a circular bioeconomy based on effective use of biomass (including biowaste) is one of the major global concerns [6]. International experiences, including countries such as China, India and Americas, show successful attempts to implement many technologies of valuable use of OFMSW (e.g., in biorefineries, biofuel production), however, there is still a need for further analysis and technological improvements, especially in relation to the quality of feedstock and economic aspects [7].…”