Getting Value from Pulp and Paper Industry Wastes: On the Way to Sustainability and Circular Economy

Amândio, Mariana S. T.; Pereira, Joana; Rocha, J. M. S.; Serafim, Luísa S.; Xavier, Ana M. R. B.

doi:10.3390/en15114105

Cited by 14 publications

(7 citation statements)

References 226 publications

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“…This makes biomass-derived sheets suitable for a wide range of printing applications, including journals, catalogs, and promotional materials that need great print quality. Furthermore, using biomass-derived fibers in papermaking promotes sustainability by reducing reliance on virgin wood pulp and promoting the use of renewable and recyclable resources [181], [182]. The paper business decreases its environmental effect and conserves natural resources by using agricultural waste, wood waste, and specialist fibers in its production processes.…”

Section: B Applications In Industry 1) Utilization Of Fibers Derived ...mentioning

confidence: 99%

Biomass: A Versatile Resource for Biofuel, Industrial, and Environmental Solution

Nguyen,

Tran,

Paramasivam

et al. 2024

Int. J. Adv. Sci. Eng. Inf. Technol.

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Biomass, noted for its adaptability, has various applications in biofuel generation, industrial use, and environmental cleaning. This study looks into the multiple roles of biomass as a renewable energy source, with a particular emphasis on its vital contribution to biofuel production. Through a thorough evaluation of different conversion routes—thermal, biological, and physical—the study emphasizes thermochemical processes' efficiency, cost-effectiveness, and adaptability. Notably, technologies like gasification and quick pyrolysis are thoroughly investigated, followed by in-depth discussions of reactor optimization strategies to enhance performance and output. The complex structure of biomass, which is dominated by high-molecular-weight polysaccharides such as cellulose and hemicelluloses, demonstrates its significant potential for energy generation. Furthermore, the study categorizes biomass by content, origin, and conversion processes, resulting in a comprehensive inventory of available resources. Biomass from the agriculture and forestry industries, such as starch, sugar, lignocellulose, and organic wastes, is rigorously analyzed for energy production. Furthermore, various biomass processing techniques, including thermochemical, biochemical, and physicochemical conversions, are carefully tested in real-world applications to ensure their efficacy and viability. Beyond its importance in biofuel production, the article underlines biomass' versatility in satisfying industrial needs and contributing to environmental cleanup initiatives. This study lays the groundwork for informed decision-making and innovative solutions in various industries by providing a thorough understanding of biomass's various benefits and applications, including energy provision, industrial processes, and ecological restoration.

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Section: B Applications In Industry 1) Utilization Of Fibers Derived ...mentioning

confidence: 99%

Biomass: A Versatile Resource for Biofuel, Industrial, and Environmental Solution

Nguyen,

Tran,

Paramasivam

et al. 2024

Int. J. Adv. Sci. Eng. Inf. Technol.

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“…The PHA polymers being biodegradable with unique physicochemical properties fits well in the concept of a circular economy. Realization of the circular economy approach on PHA production largely depends on the integration of a lignocellulosic biorefinery with unique green technologies [11,50]. It is expected to mitigate the global challenges of fossil-based fuels and polymers.…”

Section: Other Waste Materials As Substratementioning

confidence: 99%

Recent Challenges and Trends of Polyhydroxyalkanoate Production by Extremophilic Bacteria Using Renewable Feedstocks

Możejko-Ciesielska,

Ray,

Sankhyan

2023

Polymers

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Polyhydroxyalkanoates (PHAs) are biodegradable polymers with immense potential in addressing the global plastic pollution crisis and advancing sustainable bioplastics production. Among the various microbes known for PHA production, extremophilic bacteria possess unique capabilities to thrive under extreme conditions, making them attractive candidates for PHA synthesis. Furthermore, the utilization of renewable feedstocks for PHA production aligns with the growing demand for sustainable bioplastic alternatives. A diverse range of extremophilic bacteria, especially halophiles and thermophiles, has provided cost-competitive platforms for producing customized PHA polymers. Extremophilic bacteria offer unique advantages over mesophiles due to their contamination resistance, high cell density growth, and unique culture conditions. The current status of Halomonas spp. as a chassis further allows exploration of metabolic engineering approaches to overcome the challenges associated with current industrial biotechnology. This article especially focuses on extremophilic bacteria and explores recent advances in utilizing renewable feedstocks such as lignocellulosic biomass, agro-industrial residues, and waste streams for PHA production. The integration of biorefinery concepts and circular economy principles in PHA manufacturing is also examined. This review is an attempt to provide an understanding of renewable substrates as feedstocks and emerging trends in PHA production by extremophilic bacteria. It underscores the pivotal role of extremophiles and sustainable feedstock sources in advancing the feasibility and eco-friendliness of PHAs as a promising biopolymer alternative.

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“…Despite the differences, the CE model is established by employing an efficient use and management of resources, promoting zero-waste industries (Guerra et al (2021); Nobre and Tavares (2021)). In this concept, wastes and by-products derived from industrial processes are considered raw materials to produce energy and other value-added products (Amândio et al (2022)).…”

Section: Introductionmentioning

confidence: 99%

Kraft lignin biorefinery: from pulping side streams to concrete plasticizers

Zandonadi Nunes,

de Paula,

Demuner

et al. 2024

Eur. J. Wood Prod.

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Kraft lignin is a residue of the kraft pulping process that is normally burnt to produce steam and energy. However, given its high availability as the second most abundant biopolymer, a lignin biorefinery is a promising approach to reach a sustainable bioeconomy. Nevertheless, because of lignin's complex structure, low reactivity and heterogeneity, this is still challenging. The modification of lignin to produce lignosulfonates is a possible use once they have already been validated by the market as plasticizers in concrete mixtures, surfactants, etc. The aim of this work is to produce lignosulfonates from commercial eucalypt kraft lignin and heat-treated lignin by a sulfomethylation reaction and analyze their use as a concrete plasticizer, comparing with a commercial admixture. The produced lignosulfonates presented a higher concentration in sulfur content, once no purification step was employed, but still a significant increase in water solubility from 7.2% to 98.8% when compared to kraft lignin. Cement pastes, fresh and hardened concretes were produced for the evaluation of the plasticizing performance. Fresh concretes were analyzed as to initial consistency (slump test), while the hardened concretes regarding to axial compression strength and the 1 cement pastes as to viscosity. In concentrations of around 2.2% both kraft lignosulfonate and heat-treated lignosulfonate were found to display an increase in the concrete workability of 75 to 95%. Both lignosulfonates were therefore found to be promising once they present the potential to not only reduce water consumption in concrete preparation while maintaining similar resistance, but also improve waste management in kraft mills.

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Getting Value from Pulp and Paper Industry Wastes: On the Way to Sustainability and Circular Economy

Cited by 14 publications

References 226 publications

Biomass: A Versatile Resource for Biofuel, Industrial, and Environmental Solution

Biomass: A Versatile Resource for Biofuel, Industrial, and Environmental Solution

Recent Challenges and Trends of Polyhydroxyalkanoate Production by Extremophilic Bacteria Using Renewable Feedstocks

Kraft lignin biorefinery: from pulping side streams to concrete plasticizers

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