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Recycling, Volume 10, Issue 4

August 2025 - 45 articles

Cover Story: This paper presents a biorefinery-based approach to recover volatile fatty acids and biomethane from the co-fermentation of excess sludge and the organic fraction of municipal solid waste. Semi-continuous experiments demonstrated the influence of substrate ratio and hydraulic retention time on the acid yield, while traditional direct anaerobic digestion of the fermentation residues significantly enhanced methane production. The proposed process supports the transition of wastewater treatment plants into circular, energy-positive facilities. View this paper
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Articles (45)

  • Article
  • Open Access
1,979 Views
17 Pages

21 August 2025

Brewer’s spent grain (BSG) is the main solid byproduct of the brewing industry, generated in large quantities worldwide. Its high organic content and availability make it an attractive substrate for biotechnological valorization and recycling w...

  • Article
  • Open Access
1 Citations
1,548 Views
18 Pages

Extraction of Rare Earth Elements from Organic Acid Leachate Using Formo-Phenolic-like Resins

  • Evan Lelong,
  • Julien Couturier,
  • Clément Levard,
  • Stéphane Pellet-Rostaing and
  • Guilhem Arrachart

17 August 2025

Formo-phenolic-like resins were synthesized by replacing phenol with phloroglucinol, a biobased and biocompatible compound, and using different aldehydes, such as biomass-derived furaldehyde and glyoxal. Studies on the adsorption of rare earth elemen...

  • Article
  • Open Access
590 Views
10 Pages

Grape Marc Flour as a Horticulture By-Product for Application in the Meat Industry

  • Manuel Alejandro Vargas-Ortiz,
  • Armida Sánchez-Escalante,
  • Gastón R. Torrescano-Urrutia,
  • Rey David Vargas-Sánchez,
  • Brisa del Mar Torres-Martínez and
  • Eber Addí Quintana-Obregón

15 August 2025

Using agro-industrial byproducts as functional ingredients represents a sustainable approach to food development. This study aimed to characterize the physicochemical and techno-functional properties of grape marc flour and evaluate the metabolite co...

  • Article
  • Open Access
1,434 Views
23 Pages

Assessment of Greenhouse Gas Emissions, Energy Demand and Solid Waste Generation Between Two Manufacturing Processes: A Case Study

  • Fernando Nogueira Cardoso,
  • João da Cruz Payão Filho,
  • Margareth Nascimento de Souza Lira and
  • Claudinei de Souza Guimarães

13 August 2025

Additive manufacturing (AM) is an Industry 4.0 technology that assists or replaces the conventional manufacturing (CM) of complex geometries in various sectors, including transport, steel, aerospace, military, and architecture. The aim is to improve...

  • Article
  • Open Access
963 Views
29 Pages

12 August 2025

Accurate information on waste composition is essential for strategic planning in waste management and developing environmental technologies. However, detailed analyses of individual waste containers are both time- and cost-intensive, resulting in a l...

  • Article
  • Open Access
6,109 Views
22 Pages

11 August 2025

Digital platforms in fashion e-commerce are progressively shaping sustainable consumption practices. This research explores the interplay between consumer behaviors toward recycled and second-hand fashion, and the adoption of digital platform-driven...

  • Article
  • Open Access
1,152 Views
20 Pages

Value-Added Recycling of Pre-Consumer Textile Waste: Performance Evaluation of Cotton Blend Knitted T-Shirts

  • Muhammad Babar Ramzan,
  • Sajida Ikram,
  • Sheheryar Mohsin Qureshi,
  • Muhammad Waqas Iqbal and
  • Muhammad Qamar Khan

This study investigates the effects of waste for value addition in form of use of textile waste to comfortable and durable garments based on blending recycled cotton fibers extracted from spinning, weaving, and cutting waste with virgin cotton in dif...

  • Article
  • Open Access
2,372 Views
25 Pages

Climate changes have increased interest in the circular economy, an alternative model that seeks to minimize environmental impact and maximize resource reuse. A key element of this model is individuals’ behaviors and attitudes, which determine...

  • Article
  • Open Access
909 Views
16 Pages

Recycling Waste Cottonseed Hulls to Biomaterials for Ammonia Adsorption

  • Thomas Klasson,
  • Bretlyn Pancio and
  • Allen Torbert

Ammonia emissions in poultry houses are common and pose health concerns for animals and workers. However, effective control of these emissions with sustainable products is lacking. Therefore, we investigated if an agricultural byproduct, cottonseed h...

  • Article
  • Open Access
2 Citations
1,030 Views
21 Pages

Phase Characterisation for Recycling of Shredded Waste Printed Circuit Boards

  • Laurance Donnelly,
  • Duncan Pirrie,
  • Matthew Power and
  • Andrew Menzies

In this study, we adopt a geometallurgical analytical approach common in mineral processing in the characterization of samples of shredded waste printed circuit board (PCB) E-waste, originating from Europe. Conventionally, bulk chemical analysis prov...

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Recycling - ISSN 2313-4321