Article

A literature review of slaughterhouse waste valorisation: Techniques, environmental, and economic implications

Dennis S. AshilenjeAfrican Sustainable Agriculture Research (ASARI), University Mohammed VI Polytechnic, Laayoune, MoroccoFatma H. AshourChemical Engineering Department, Faculty of Engineering, Cairo University, Giza 12613, EgyptMirko BarzRenewable Energy Unit, Department Engineering-Energy and Information, Hochschule für Technik und Wirtschaft Berlin, University of Applied Sciences Berlin, 10318 Berlin, GermanyVerónica BelandriaICARE CNRS - University of Orleans, 1C, Orléans, FranceA. BorelloFountain Green Energy, Fairway Green Office Park, Kloof 3610, South AfricaStéphane BostynICARE CNRS - University of Orleans, 1C, Orléans, FranceToufik BoushakiICARE CNRS - University of Orleans, 1C, Orléans, FranceRaffaella BranciariDepartment of Veterinary Medicine, University of Perugia, 06126 Perugia, ItalyJoseph K. BwapwaDepartment of Chemical Engineering, Faculty of Engineering, Mangosuthu University of Technology, Jacobs, Durban 4026, South AfricaElisa CerzaDepartment of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, ItalyAndrea Dell’OrtoSchool of Engineering, University of KwaZulu-Natal, Durban, South AfricaHassan El BariLaboratory of Electronic Systems, Information Processing, Mechanics and Energetics, Faculty of Sciences, Ibn Tofail University, Kenitra, MoroccoMayuren GovenderFountain Green Energy, Fairway Green Office Park, Kloof 3610, South AfricaSanae HabchiLaboratory of Electronic Systems, Information Processing, Mechanics and Energetics, Faculty of Sciences, Ibn Tofail University, Kenitra, MoroccoFadoua KarouachAfrican Sustainable Agriculture Research (ASARI), University Mohammed VI Polytechnic, Laayoune, MoroccoNourhan H. KhashabaChemical Engineering Department, Faculty of Engineering, Cairo University, Giza 12613, EgyptLamfeddal KouisniAfrican Sustainable Agriculture Research (ASARI), University Mohammed VI Polytechnic, Laayoune, MoroccoOmbretta MarconiDepartment of Agricultural, Food and Environmental Sciences, University of Perugia, 06121 Perugia, ItalyAssunta MarrocchiDepartment of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, ItalyMeryem SaberCentre de Développement des Energies Renouvelables, CDER, B.P. 62, Algiers, AlgeriaBrahim SarhCristina TroisMartina WillenbacherVolker Wohlgemuth

2025en

ABI

Abstract

• Detailed exploration of diverse methods for valorising slaughterhouse waste. • Examination of innovative valorisation strategies tailored to African contexts. • Conversion of waste through biochemical and advanced energy methods. • Recovery of minerals from waste improves soil fertility and boosts productivity. • Slaughterhouse waste plays a crucial role in fostering circular economy practices. Managing slaughterhouse waste (SHW) is a critical global challenge. Over the past two decades, the focus on sustainable waste management has intensified, with valorisation emerging as a key solution. This review examines the most significant outcomes of recent advancements in SHW valorisation, particularly from 2010 onward, with an emphasis on African contexts, which remain underrepresented in the literature. Notable results include the successful integration of biochemical processes, advanced waste-to-energy technologies, and nutrient recovery techniques. These approaches have demonstrated measurable outcomes such as significant reductions in environmental impact, enhanced energy recovery, and economic benefits for local communities. Case studies from African countries showcase the effectiveness of specific valorisation strategies, including high-efficiency biogas production and resource recovery, offering practical insights for wider adoption and scalability. Organized into 11 sections, the review identifies key research gaps, such as the need for region-specific technologies and policy frameworks and proposes concrete recommendations for advancing circular economy practices. The ultimate aim is to provide a roadmap for researchers, policymakers, and industry professionals to drive the sustainable development of SHW management, contributing to global efforts for waste reduction and resource maximization.

Identifiers

DOI: 10.1016/j.resconrec.2025.108571

Citations and references

Cited by 20 references

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