Analysis of Fungi in Wood Chip Storage Piles

Suchomel, J.; Belanová, Katarína; Gejdoš, Miloš; Němec, Miroslav; Danihelová, Anna; Mašková, Zuzana

doi:10.15376/biores.9.3.4410-4420

Cited by 19 publications

(26 citation statements)

References 7 publications

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“…Besides the lower respiratory tract, paranasal sinuses, eyes, CNS, and myocardium can be affected as well. Similarly high numbers of colonies of these species also were identified in other studies describing shorter storage times [2,28]. When manipulating wood chips quite high concentrations of the Aspergillus species in the air were recorded in other studies [29][30].…”

Section: Discussionsupporting

confidence: 74%

“…The most common diseases caused by this species are keratitis, onychomycosis, and hyalohyphomycosis [36][37]. The less frequent occurrence of the genus Fusarium was identified also in other studies [2,15,38]. In the study on birch and spruce wood from Finland, the spores of genus Fusarium and Trichoderma were identified as well.…”

Section: Discussionmentioning

confidence: 61%

“…Microbiological identification of fungi in samples was performed by examination [2,20] in the accredited laboratory of the Regional Public Health Authority in Poprad.…”

Section: Laboratory Analysesmentioning

confidence: 99%

“…However, their increased consumption is inevitably connected with questioning their quality [1][2]. Quality is in specific cases determined by the method of production and the storage process [3][4].…”

mentioning

confidence: 99%

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Biological Risks from Long-Term Storage of Wood Chips

Lieskovský¹,

Gejdoš²,

Messingerová³

et al. 2017

Pol. J. Environ. Stud.

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Renewable energy sources based on wood are becoming increasingly important and popular. However, their increased consumption is inevitably connected with questioning their quality [1][2]. Quality is in specific cases determined by the method of production and the storage process [3][4]. The quality of wood chips is at present evaluated according to the calorific value and moisture content, which are often influenced, besides the wood species itself, by weather conditions and storage method [5][6][7][8][9]. The increased number of plants using wood chips as a source of energy is connected with raising the question of health and safety hazards associated with the production and storage of wood chips. The factors most hazardous for human health are represented by the hazards associated with the activity of fungi and moulds in Pol. J. Environ. Stud. Vol. 26, No. 6 (2017), 2633-2641 AbstractThe aim of our study was to monitor and analyze the main biological hazards connected to the long-term storage of wood chips for energy production. The analysis was carried out in four high-capacity storage yards of the town heating plants in the Banská Bystrica self-governing region in Slovakia. Five samples were taken from each pile of a rectangular shape and volume over 4,000 m 3 ; the sampling was carried out at the beginning of the monitoring period and at the end of the monitoring period (after one year). Thirtyfour species of microscopic fungi were identified (18 at the beginning of the monitoring period and 16 at the end of the monitoring period). Thirty-three of them can potentially cause severe diseases. Fungi of the genus Aspergillus, causing severe diseases, were identified as the most abundant. The research confirmed that if the length of storage time is more than a year, the potential hazards for human health increase due to the increasing number of spore-forming pathogens. Following the monitoring of atmospheric conditions the highest increase of harmful spores was recorded at the average annual temperature of 10ºC and precipitation of over 1,000 mm a year.

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Section: Discussionsupporting

confidence: 74%

Section: Discussionmentioning

confidence: 61%

“…Microbiological identification of fungi in samples was performed by examination [2,20] in the accredited laboratory of the Regional Public Health Authority in Poprad.…”

Section: Laboratory Analysesmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Biological Risks from Long-Term Storage of Wood Chips

Lieskovský¹,

Gejdoš²,

Messingerová³

et al. 2017

Pol. J. Environ. Stud.

Self Cite

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“…), physical (density, moisture content), and mechanical (hardness, strength, etc. ) properties of the machined material (Eyma 2002;Eyma et al 2004;Suchomel and Gejdos 2010;Novák et al 2011;Suchomel et al 2014;Kvasnová et al 2016;Igaz et al 2017;Marková et al 2018;Klement et al 2019;Očkajová et al 2019, Tureková et al 2019). However, Hernandez et al (2014 showed that at temperatures higher than 0 °C, wood moisture content does not noticeably affect the mechanical properties inducing the chip fragmentation mechanism.…”

Section: Introductionmentioning

confidence: 99%

Effect of cutting conditions on quality of milled surface of medium-density fibreboards

Kminiak

Siklienka

Igaz

et al. 2019

BioRes

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The quality of milled surface medium-density fibreboards (MDF) and the effect of the wrong milling direction during the process of automatic milling in real conditions in practice (production machine, production tool, and material) are presented in the paper. Moreover, the effect of the double vs. single bladed milling cutter on the final surface quality with the simultaneous changes in individual parameters of feed rate, thickness of the removed layer, and cutting direction was investigated. The MDF was separated using the strategy “one per pass“ with required cutting direction (climb or conventional) and the required thick strips cutting off (4 mm to 16+ mm) at a constant operation speed of the milling cutter (n = 20000 min−1) and a changing feed rate from vf = 1 m/min−1 to vf = 5 m/min−1. The use of a multi-bladed milling cutter resulted in the higher quality of the milled surface in all cases (change in feed rate, thickness of removed layer, and cutting direction). The effect of the wrong milling direction during automatic milling was observed only for a single-bladed milling cutter used. An increase in surface roughness (Ra) occurred; therefore, using the double-bladed milling cutter, which was not associated with an increase in surface roughness, is recommended.

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