From waste to wealth: Innovations in organic solid waste composting

Xu, Mingyue; Sun, Hanjun; Chen, Enmiao; Yang, Min; Wu, Chuanfu; Sun, Xiaohong

doi:10.1016/j.envres.2023.115977

Cited by 22 publications

(3 citation statements)

References 98 publications

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“…Composting, a biologically driven process, is a testament to the intricate and dynamic interplay of diverse microbial communities [41]. These communities orchestrate the transformation of organic waste into nutrient-rich compost [42], a process that is pivotal for sustainable agriculture and waste management. While the inherent microbial communities in compost play a central role, external factors, especially microbial inoculants, can significantly modulate the composting trajectory [41,43].…”

Section: Discussionmentioning

confidence: 99%

The Impact of Marasmius tricolor 310b on the Degradation of Cellulose in Rapeseed Straw Composting

Wang,

Shi,

2023

Agronomy

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Composting, a vital process for organic waste management, hinges on intricate microbial dynamics. The role of specific microbial inoculants, such as fungi, in shaping these dynamics remains an area of keen interest. This study aimed to elucidate the impact of the fungal inoculant Marasmius tricolor 310b on composting dynamics, with a focus on temperature variations and the degradation of lignocellulosic components. We conducted a comprehensive composting experiment with four treatments: pure rapeseed straw, rapeseed straw with Marasmius tricolor 310b, a combination of rapeseed straw and pig manure, and the combination with Marasmius tricolor 310b. Temperature dynamics, lignocellulosic degradation rates, and fungal community structures were meticulously analyzed. While Marasmius tricolor 310b did not significantly alter the temperature profile, its presence markedly enhanced the degradation rates of cellulose and lignin. With the introduction of Marasmius tricolor 310b, the degradation rate of cellulose in the rapeseed straw compost increased from 0.0319 (ST) to 0.0419 (STM). In the combined rapeseed straw and pig manure compost, this rate rose from 0.0422 (STPM) to 0.045 (STPMM). For hemicellulose, the degradation rate in the rapeseed straw compost increased from 0.0103 (ST) to 0.014 (STM). However, in the combined compost, it slightly decreased from 0.0146 (STPM) to 0.013 (STPMM). As for lignin, its degradation rate in the rapeseed straw compost saw an increase from 0.0024 (ST) to 0.00366 (STM). In the combined compost, the rate rose from 0.00302 (STPM) to 0.00402 (STPMM). Fungal community analyses revealed discernible shifts in structure and diversity upon the fungus’s introduction. Network analyses further highlighted a highly interconnected microbial community, suggesting its robustness against perturbations. Temporal dynamics underscored the intricate interplay of microbial interactions, substrate availability, and external inoculants. The introduction of Marasmius tricolor 310b profoundly influences composting dynamics, offering valuable insights into microbial community interactions and presenting potential avenues for optimizing composting strategies.

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Section: Discussionmentioning

confidence: 99%

The Impact of Marasmius tricolor 310b on the Degradation of Cellulose in Rapeseed Straw Composting

Wang,

Shi,

2023

Agronomy

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“…85 The composting process comprises three main stages: thermophilic, high temperature, and maturation. 86 During the thermophilic phase, bacteria and fungi break down easily accessible organic matter, such as sugars and proteins. Moderate microbial activity occurs at temperatures ranging from 20 to 40 °C.…”

Section: Conversion Processes and Technologiesmentioning

confidence: 99%

“…Composting, a widely employed process for converting organic waste, involves the controlled decomposition of organic matter through microbial activity, resulting in the formation of HS . The composting process comprises three main stages: thermophilic, high temperature, and maturation . During the thermophilic phase, bacteria and fungi break down easily accessible organic matter, such as sugars and proteins.…”

Section: Transformation Of Organic Waste Into Hsmentioning

confidence: 99%

Transforming Organic Solid Waste Management: Embracing Humification for Sustainable Resource Recovery

Bian,

Boguta,

Huang

et al. 2024

ACS Sustainable Resour. Manage.

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The paper provides an overview of the potential use of humic substances (HS) derived from organic waste in transforming waste management practices. It discusses various types of organic waste, the production methods of HS, and their applications in agriculture, environmental remediation, and industry. The Perspective emphasizes the transformative potential of HS in reshaping organic waste management practices, highlighting improved soil fertility, mitigation of soil degradation, and immobilization of pollutants in soil and water systems. Additionally, it explores the economic viability of HS-based waste management and potential revenue streams from value-added products derived from HS. The paper also addresses environmental and regulatory considerations, emphasizing the importance of comprehensive regulatory frameworks, international policy and regulatory support, and continuous monitoring and evaluation of waste management practices. By integrating HS-based waste management into circular economy models, the paper suggests that it can contribute to resource conservation, nutrient recycling, and the development of a bio-based economy. Overall, the utilization of HS in organic waste management has the potential to revolutionize the field and contribute to sustainable resource recovery. The paper suggests that future research should continue to explore the quantifiable benefits of integrating HS into organic waste management, ultimately contributing to a more sustainable and efficient waste management system.

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Solid Waste Management and Sustainability: Introduction and Updates

Nasr,

Negm

2024

Sustainable Development Goals Series

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From waste to wealth: Innovations in organic solid waste composting

Cited by 22 publications

References 98 publications

The Impact of Marasmius tricolor 310b on the Degradation of Cellulose in Rapeseed Straw Composting

The Impact of Marasmius tricolor 310b on the Degradation of Cellulose in Rapeseed Straw Composting

Transforming Organic Solid Waste Management: Embracing Humification for Sustainable Resource Recovery

Solid Waste Management and Sustainability: Introduction and Updates

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