sustainability Article The Potential of Industrial Symbiosis: Case Analysis and Main Drivers and Barriers to Its Implementation Angela Neves 1,2,*, Radu Godina 3,* , Susana G. Azevedo 2,4 , Carina Pimentel 3,5 and João C.O. Matias 5 1 Department of Mechanical Engineering, Polytechnic Institute of Viseu, 3504-510 Viseu, Portugal 2 University of Beira Interior, 6201-001 Covilhã, Portugal;
[email protected] 3 UNIDEMI, Department of Mechanical and Industrial Engineering, Faculty of Science and Technology (FCT), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal;
[email protected] 4 CEFAGE—Department of Business and Economics, University of Beira Interior, 6201-001 Covilhã, Portugal 5 GOVCOPP and DEGEIT, University of Aveiro, 3810-193 Aveiro, Portugal;
[email protected] * Correspondence:
[email protected] (A.N.);
[email protected] (R.G.) Received: 8 October 2019; Accepted: 9 December 2019; Published: 11 December 2019 Abstract: Industrial symbiosis, which is characterised mainly by the reuse of waste from one company as raw material by another, has been applied worldwide with recognised environmental, economic, and social benefits. However, the potential for industrial symbiosis is not exhausted in existing cases, and there is still a wide range of opportunities for its application. Through a comprehensive literature review, this article aims to compile and analyse studies that focus on potential industrial symbiosis in real contexts, to highlight the margin of optimisation that is not being used. The cases reported in the publications identified here were characterised and analysed according to geographic location, type of economic activity, waste/by-products, main benefits, and the methods employed in the studies.