1. The use of paper industry side product in constructionBarbara Likar, Laura Vovčko, 2020, published scientific conference contribution Abstract: The amount of waste material and side products of various industrial plants is increasing, which leads into waste accumulation and lack of space in disposal landfills. Paper industry, with its side products paper sludge and ash, faces these same issues. To reduce the accumulation of these materials, we explored the possibility of their use in construction. At first a series of geomechanical tests was conducted on a product consisting of fly ash and bottom ash. Based on the laboratory results test fields were constructed, where the preparation and installation technologies were tested. The fields were exposed to the atmospheric conditions, so durability of the product in the natural environment was proven. Since the composition of both fly ash and bottom ash depends on the paper industry process, a continuous monitoring of their characteristics was established.
Keywords: paper industry, fly ash, bottom ash, construction material, geomechanical properties
Published in DiRROS: 05.03.2024; Views: 148; Downloads: 52
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2. Enhancing circular business model implementation in pulp and paper industry (PPI) : a phase-based implementation guide to waste valorisation strategiesaAmaia Sopelana, Asier Oleaga, Juan José Cepriá, Karmen Fifer Bizjak, Helena Paiva, Francisco-Javier Rios-Davila, Adriana H. Martinez, Antonio Cañas, 2023, original scientific article Abstract: Innovation in the circular economy (CE) and the deployment of effective circular business models (CBM) have attracted significant attention in times of growing natural resource scarcity. Despite this widespread interest, significant challenges remain between theoretical innovations and effective CBM implementation in any industrial sector where companies pursue cost-saving opportunities through waste valorisation strategies. Since current methods mislead in terms of the real limitations to designing feasible novel products and services under a circular economy, this study proposes exploring determinants underpinning the organisational resilience of CBMs under a resource efficiency strategy through three case studies. As a result of a co-creation process, the implementation of a CBM framework was built upon empirical data and, thence, a phase-based implementation guide was laid out to assist companies in designing and implementing innovative CBM dealing with the complexity of innovative waste valorisation strategies between the PPI and construction sectors. Relevant findings on managerial and policy recommendations encountered along the demo stage are provided in this paper favouring an effective implementation of CE strategies: the role of technological and non-technological aspects within the CBM, the perspective of the ecosystem and its value proposition, and specific guidelines for the different phases of CBM life cycle.
Keywords: circular business models (CBMs), resource recovery, waste valorisation, strategic management, pulp and paper industry (PPI), construction sector
Published in DiRROS: 13.12.2023; Views: 192; Downloads: 90
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3. How many people are globally employed in the forest sector?Rattiya S. Lippe, Jörg Schweinle, Yonca Gurbuzer, Waltteri Katajamäki, Mabelin Villarreal-Fuentes, Shannon Cui, Sven Walter, 2023, published scientific conference contribution Keywords: forest sector, employment, forestry, wood industry, paper industry
Published in DiRROS: 05.10.2023; Views: 242; Downloads: 90
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4. Using recycled material from the paper industry as a backfill material for retaining walls near railway linesKarmen Fifer Bizjak, Barbara Likar, Stanislav Lenart, 2021, original scientific article Abstract: The construction industry uses a large amount of natural virgin material for different geotechnical structures. In Europe alone, 11 million tonnes of solid waste is generated per year as a result of the production of almost 100 million tonnes of paper. The objective of this research is to develop a new geotechnical composite from residues of the deinking paper industry and to present its practical application, e.g., as a backfill material behind a retaining structure. After different mixtures were tested in a laboratory, the technology was validated by building a pilot retaining wall structure in a landslide region near a railway line. It was confirmed that a composite with 30% deinking sludge and 70% deinking sludge ash had a high enough strength but experienced some deformations before failure. Special attention was paid to the impact of transport, which, due to the time lag between the mixing and installation of the composite, significantly reduced its strength. The pilot retaining wall structure promotes the use of recycled materials with a sustainable design, while adhering to government-mandated measures.
Keywords: paper sludge ash, deinking sludge, paper industry, backfill material, retaining wall
Published in DiRROS: 04.07.2023; Views: 251; Downloads: 156
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5. Innovative circular economy models for the european pulp and paper industry : a reference framework for a resource recovery scenarioAmaia Sopelana, Camille Auriault, Anurag Bansal, Karmen Fifer Bizjak, Helena Paiva, Christian Maurice, Gunnar Westin, Javier Rios, Asier Oleaga, Antonio Cañas, 2021, original scientific article Abstract: According to recent literature in the field of sustainability, the circular economy (CE) appears to be a thriving opportunity for creating new businesses, although less attention has been paid to the form in which its principles fit into a comprehensive framework that enables companies to design it in a practical way. This paper presents the methodology that has been adopted to pave the way to a coherent reference framework for circular business model innovation and its outstanding design and implementation, taking into consideration the entire value and supply chain. A unique analysis of recent innovations in circular economy models is provided herein, together with an exhaustive analysis of those elements that enable or hinder their implementation. The main interactions among all those critical elements influencing how organisations innovate and operate cooperatively within a CE ecosystem are also evaluated. In addition, a study of five industrial cases in the pulp and paper industry allowed searching for industrial insights and empirical evidence of the relevance of those elements, including observation, document analysis, and interviews. Lastly, the main outcomes of this research are illustrated using the CE reference framework designed when applied to the aforementioned industrial cases, and relevant insights into future improvements are also provided.
Keywords: circular economy business models, pulp and paper industry, construction sector, open access
Published in DiRROS: 12.05.2023; Views: 307; Downloads: 170
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