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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 Citations
788 Views
18 Pages

Agronomic Evaluation of Compost Formulations Based on Mining Tailings and Microbial Mats from Geothermal Sources

  • María Jesús Puy-Alquiza,
  • Miren Yosune Miranda Puy,
  • Raúl Miranda-Avilés,
  • Pooja Vinod Kshirsagar and
  • Cristina Daniela Moncada Sanchez

This study, conducted in Mexico, evaluates the agricultural potential of three compost formulations BFS1, BFS2, and BFS3 produced from mining tailings and thermophilic microbial mats and collected from geothermal environments. The physicochemical cha...

  • Review
  • Open Access
2 Citations
2,773 Views
31 Pages

Recycled Concrete Aggregate in Asphalt Mixtures: A Review

  • Juan Gabriel Bastidas-Martínez,
  • Hugo Alexander Rondón-Quintana and
  • Luis Ángel Moreno-Anselmi

Effective management and handling of construction and demolition waste (CDW) can yield significant technical and environmental benefits for road pavement construction. This article aims to provide a comprehensive and up-to-date chronological review o...

  • Review
  • Open Access
1 Citations
4,583 Views
30 Pages

Sugarcane Industry By-Products: A Decade of Research Using Biotechnological Approaches

  • Serafín Pérez-Contreras,
  • Francisco Hernández-Rosas,
  • Manuel A. Lizardi-Jiménez,
  • José A. Herrera-Corredor,
  • Obdulia Baltazar-Bernal,
  • Dora A. Avalos-de la Cruz and
  • Ricardo Hernández-Martínez

The sugarcane industry plays a crucial economic role worldwide, with sucrose and ethanol as its main products. However, its processing generates large volumes of by-products—such as bagasse, molasses, vinasse, and straw—that contain valua...

  • Article
  • Open Access
733 Views
19 Pages

Recycling Volcanic Lapillus as a Supplementary Cementitious Material in Sustainable Mortars

  • Fabiana Altimari,
  • Luisa Barbieri,
  • Andrea Saccani and
  • Isabella Lancellotti

This study investigates the feasibility of using volcanic lapillus as a supplementary cementitious material (SCM) in mortar production to improve the sustainability of the cement industry. Cement production is one of the main sources of CO2 emissions...

  • Article
  • Open Access
1 Citations
1,917 Views
23 Pages

Quantifying Cotton Content in Post-Consumer Polyester/Cotton Blend Textiles via NIR Spectroscopy: Current Attainable Outcomes and Challenges in Practice

  • Hana Stipanovic,
  • Gerald Koinig,
  • Thomas Fink,
  • Christian B. Schimper,
  • David Lilek,
  • Jeannie Egan and
  • Alexia Tischberger-Aldrian

Rising volumes of textile waste necessitate the development of more efficient recycling systems, with a primary focus on the optimization of sorting technologies. Near-infrared (NIR) spectroscopy is a state-of-the-art method for fiber identification;...

  • Article
  • Open Access
1 Citations
2,123 Views
20 Pages

Life Cycle Assessment of Biomass Waste and Coal Co-Firing: Advancing Circular Economy in Energy Production

  • Stiven J. Sofán-Germán,
  • Miguel E. Doria-Oviedo,
  • Jesus D. Rhenals-Julio and
  • Jorge M. Mendoza-Fandiño

This study uses life cycle analysis (LCA) to evaluate the environmental impacts of co-firing bituminous coal with agricultural biomass waste, such as coconut and rice husks, emphasising circular economy principles. Seven experimental scenarios with d...

  • Article
  • Open Access
792 Views
17 Pages

Lead Recovery from Flue Dust by Using Ultrasonic-Enhanced Hydrogen Peroxide Water Washing

  • Tian Wang,
  • Yuxi Xie,
  • Phan Duc Lenh,
  • Thiquynhxuan Le and
  • Libo Zhang

An ultrasonic-enhanced hydrogen peroxide water-washing process was developed to recover lead from raw flue dust (RFD) under neutral conditions. At optimal parameters (40 °C, 30 min, 4 mL H2O2, liquid-to-solid ratio 2:1, 240 W ultrasound), the Pb...

  • Article
  • Open Access
938 Views
21 Pages

Evaluation of Spent Catalyst from Fluid Catalytic Cracking in Fly Ash and Blast Furnace Slag Based Alkali Activated Materials

  • Yolanda Luna-Galiano,
  • Domingo Cabrera-Gallardo,
  • Mónica Rodríguez-Galán,
  • Rui M. Novais,
  • João A. Labrincha and
  • Carlos Leiva Fernández

The objective of this work is to evaluate how spent catalyst from fluid catalytic cracking (SCFCC) affects the physical, mechanical and durability properties of fly ash (FA) and blast furnace slag (BFS)-based alkali-activated materials (AAMs). Recycl...

  • Review
  • Open Access
1 Citations
2,618 Views
33 Pages

A Review of Methods and Data on the Recycling of Plastics from the European Waste Stream of Electric and Electronic Equipment

  • Nicolas Nève,
  • Xavier Mackré-Delannoy,
  • Bruno Fayolle,
  • Matthieu Gervais,
  • Stéphane Pompidou,
  • Carole Charbuillet,
  • Cyrille Sollogoub and
  • Nicolas Perry

Plastics make up a significant proportion of the stream of the European Waste of Electric and Electronic Equipment (WEEE), yet the use of recycled plastic materials is very low in new manufactured products. A description of the WEEE waste stream in E...

  • Article
  • Open Access
1,130 Views
22 Pages

The increasing demand for sustainable construction materials has driven research into low-carbon geopolymers that mitigate both cement-related emissions and plastic and glass waste accumulation. This study explores the development of geopolymer concr...

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Recycling - ISSN 2313-4321