Suchergebnisse
Suchergebnisse:
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- Grain Distribution in Ashes
- Basic Biomass Components and Calorific Value
- Potentially Toxic Elements in Wood Biomass and Ashes from Its Combustion
- Relative Enrichment Factor (Ref) in Potentially Toxic Elements For Ashes
- Estimated Emissions of Pb, CD, Hg, and as from Burning Wood in A Closed Furnace
- Statistical Analysis of Results
What follows from the grain size distribution obtained in sieve ash analysis, is that the fraction smaller than 100 µm (min. 67.4% by weight–max. 83.5% by weight) is the largest one, and the fraction above 100 µm (min. 16.5% by weight to max. 32.6% by weight) is smaller (Table 2). Granulometric analysis using the Analysette 22 Micro Tec analyser yi...
Wood biomass is characterised by very high volatile parts content (min. 69.3 and max. 81%), with a lower value determined for fresh birch (69.3%) (Table 3). According to Vassilev et al. (2010), mean volatile part content in biomass does not exceed 78%. Samples of fresh birch (18.3%) and briquette (10.7%) exhibited the highest ash content (Table 3)....
Concentrations of potentially toxic elements (Pb, Cd, Zn, Ni, Cu, As, Hg and Cr) in the tested ash samples vary greatly (Table 5). The highest Pb contents were found in ash with a fraction below 100 µm, in samples 3A (1640 mg/kg) and 5A (1198 mg/kg). Szwalec et al. (2016) report a Pb content of 0.40 mg/kg d.m. in wood briquette. In samples of ash i...
The enrichment factor allows determining the accumulation of selected elements in ash from wood biomass. This value is characteristic of the specific test area from which the wood biomass samples were taken. The relative enrichment factor (REF) was calculated based on Meij's formula (1994), which takes into account the content of a specific element...
Reduction of emissions of potentially toxic elements is one of the fundamental elements of EU environmental policy. Determination of the amount of potentially toxic pollutants emitted to the atmosphere is of great importance for measures taken to improve air quality (Maenhaut et al. 2012; Martin et al. 2013; Cincinelli et al. 2019). Wood-fired furn...
Basic statistical parameters were calculated for the test results: coefficient of variation (CV) and variance (V). Using Pearson's linear correlation coefficient, an attempt was made to determine the relationship between potentially toxic elements and ∑Si + Al and ∑Ca + K (Table 7). The coefficient of variation, like the standard deviation, is used...
- Danuta Smołka-Danielowska, Mariola Jabłońska
- 2021
21. Feb. 2022 · Raw biomass characterization showed that cow dung, mango pulp, and Chromolaena odorata leaves recorded percentages; fixed carbon, volatile matter, and ash contents in addition to calorific...
1. Okt. 2021 · Biomass ash utilization in the conventional and novel application is elucidated. •. Opportunities in nano-energy for reforming and energy storage applications are highlighted. Abstract. To reduce greenhouse emissions, the utilization of biomass is a proficient path for producing power and its impact on accumulative carbon footprint.
- Muhammad Assad Munawar, Asif Hussain Khoja, Salman Raza Naqvi, Muhammad Taqi Mehran, Muhammad Hassan...
- 2021
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Go beyond the data with expert-led conference insights in malignant and non-malignant hematology from the 62nd ASH Annual Meeting (ASH 2020).
