Latest Articles from Silva Balcanica Latest 2 Articles from Silva Balcanica https://silvabalcanica.pensoft.net/ Fri, 29 Mar 2024 08:39:00 +0200 Pensoft FeedCreator https://silvabalcanica.pensoft.net/i/logo.jpg Latest Articles from Silva Balcanica https://silvabalcanica.pensoft.net/ Identifying key quality characteristics of woody biomass for bioenergy application: an international review https://silvabalcanica.pensoft.net/article/114644/ Silva Balcanica 24(3): 77-94

DOI: 10.3897/silvabalcanica.24.e114644

Authors: Mohammad Reza Ghaffariyan

Abstract: Biomass characteristics play an important role in product classification, economic values, and types of usage. This research was initiated by the IEA Bioenergy Technology Collaboration Programme, which aimed to review and identify the top biomass characteristics as they relate to commercially viable biomaterial and bioenergy processes. An online search (in English) was conducted using the following keywords: biomass, chips, quality, characteristics, moisture content, calorific values, contamination and ash content. The search was restricted to woody biomass and raw feedstock materials. Review results were classified based on regions including Africa, America, Asia, Europe and Oceania. Each case study was described based on the study background, type of biomass and biomass attributes that were measured. The key biomass characteristic was moisture content that was consistently measured in almost all reports. Ash content and calorific value were classified as second place in terms of frequency in the biomass studies. Lower frequency belonged to the attributes such as bulk density, contamination, particle shape and nutrient (elemental) content. Detailed information of different case studies is provided in this report. It is anticipated that this literature review will assist IEA Bioenergy and its industrial and scientific network to better understand the current knowledge gaps regarding woody biomass characterisation.

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Review Article Thu, 28 Dec 2023 15:00:07 +0200
Effect of wastewater sludge treatment on early growth and physiological responses of willow (Salix spp.) and poplar (Populus spp.) pot-grown plants https://silvabalcanica.pensoft.net/article/58528/ Silva Balcanica 22(1): 57-65

DOI: 10.3897/silvabalcanica.22.e58528

Authors: Ivaylo Tsvetkov, Nikolina Tzvetkova, Svetla Marinova

Abstract: Combining biomass production from fast-growing woody species with wastewater treatment is an attractive concept from the economic, energy and environmental points of view. A pilot experiment on study-ing the effect of wastewater treatment on the early growth and initial physiological responses of willow and poplar plants was carried out in greenhouse conditions. The survival, height growth, net photosyn-thesis, stomatal conductance and transpiration of two hybrid clones of black poplar (Populus x euroameri-cana (Dode) Guinier) (I-214 and I-45/51) and white willow (S. alba L.) pot-grown plants treated with different doses of agrochemically characterised wastewater sludge were studied during the establishment year. The height growth and number of resprouted willow shoots were also measured during the second year after cutting, at the end of the vegetation season. While the early growth height of poplar clones was markedly affected by the clone origin and wastewater sludge treatment, the latter did not considerably influence the height of the willow plants either during the establishment and the following year, but essentially increased the number of resprouted shoots during the second vegetation season. The rate of CO2 assimilation of willow plants was significantly influenced by the wastewater sludge treatment, with plants grown at the higher doses displaying higher photosynthetic performance. The application of wastewater sludge had no essential impact on the values of the physiological parameters of the poplar plants, but particular responses were found among the clones.

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Research Article Fri, 19 Mar 2021 10:00:05 +0200