Selected Properties of Bioconversion Products of Lignocellulosic Biomass and Biodegradable Municipal Waste as a Method for Sustainable Management of Exogenous Organic Matter

Jakub Bekier (), Elżbieta Jamroz, Józef Sowiński, Katarzyna Adamczewska-Sowińska, Małgorzata Wilusz-Nogueira and Dariusz Gruszka
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Jakub Bekier: Institute of Soil Sciences, Plant Nutrition and Environmental Protection, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
Elżbieta Jamroz: Institute of Soil Sciences, Plant Nutrition and Environmental Protection, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
Józef Sowiński: Institute of Agroecology and Crop Production, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
Katarzyna Adamczewska-Sowińska: Department of Horticulture, Wroclaw University of Environmental and Life Sciences, 50-375 Wrocław, Poland
Małgorzata Wilusz-Nogueira: Institute of Soil Sciences, Plant Nutrition and Environmental Protection, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
Dariusz Gruszka: Institute of Soil Sciences, Plant Nutrition and Environmental Protection, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland

Sustainability, 2025, vol. 17, issue 4, 1-20

Abstract: In recent decades, there has been a significant decrease in humus resources in the terrestrial environment, including in agriculturally used soils, due to increased mineralisation of soil organic matter (SOM). Using composting as a method for recycling lignin-cellulosic biomass, the application of innovative microbial stimulation seems reasonable for obtaining the most useful product. The aim of this study was the qualitative and quantitative analysis of humic acids during the composting of exogenous organic matter (EOM) of energy willow biomass (WBC) and biodegradable municipal waste (MSWC). Samples were collected at different maturity stages, and the following determinations were performed: total organic carbon (TOC) and total nitrogen (TN), carbon of fulvic (CFA) and humic (CHA) acids, carbon of residual fraction (CR), the elemental composition of humic acids, humification index (HR 1 ), and ω (oxidation) ratios. Results indicated the direction and intensity of biotransformation processes were determined by the availability of nitrogen compounds. The innovative use of microbial preparation has resulted in a more useful final product. Inoculation of lignocellulosic substrates stimulated the synthesis of humic acids, and the decomposition of the CR fraction, as well as HR 1 and ω ratios, may be used to assess the recycling efficiency.

Keywords: biomass; willow; waste; biorecycling; inoculation; composting; humification (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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