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The subject of this study was an assessment of the effectiveness of hygienization of pig slurry during the methane fermentation process. The basic criterion for evaluating the effectiveness of the process was the inactivation rate of Salmonella Senftenberg (W775, H2S negative) and the eggs of Ascaris suum. Bacteria suspensions were introduced into slurry inside microbiological carriers of the FILTER-SANDWICH...
The aim of the study was to investigate the effect of acidification and heat on the survival of Clostridium spores in third category animal by-products. Poultry minced meat and minced fish waste, contaminated with Clostridium sporogenes IW 1306 spore suspension, were subjected to the combined action of formic acid and high temperature of different values. To assess the efficiency of examined hygienization...
The study evaluated the effectiveness of air biofiltration in rendering plants. The biofilter material comprised compost soil (40%) and peat (40%) mixed up with coconut fiber (medium A) and oak bark (medium B). During biofiltration average VOCs reduction reached 88.4% for medium A and 89.7% for medium B. A positive relationship of aldehyde reduction from material humidity (r = 0.502; α<0.05) was...
The agricultural use of sewage sludge is possible on condition of maintaining microbiological and parasitological standards, and one of the most modern methods improving its sanitary state is solar drying. In the presented study, the effect of this process on the elimination of indicator microorganisms (Escherichia coli, Salmonella Senftenberg W775, Enterococcus spp.) and eggs of Ascaris suum introduced...
This paper presents the results of PAH determination adsorbed on fine and ultrafine particles emitted to the air from diesel exhaust, with a special emphasis on sample preparation procedure prior to HPLC-FL analysis. Samples were taken with a personal environmental monitor and personal cascade impactor in order to ensure size-segregated sampling of air particulate matter (in the range of the following...
Our study aimed to indicate the possibility of the application of 5 strains of Lactobacillus plantarum and 1 strain of Lactobacillus brevis isolated from plant material for reducing the count of Salmonella Senftenberg W775 in mixed culture. All the tested strains completely inactivated growth of Salmonella Senftenberg rods during 48 h of common culture. The strongest antagonistic activity was shown...
Sewage sludge constitutes a source of valuable biogenic raw materials, but it is a carrier of many pathogenic microorganisms and viruses. Subjected to an effective sanitization by means of the process of composting, it is suitable to use in agriculture as fertilizers. The aim of this study was to observe the survival rate of Suid Herpesvirus under the influence of the temperature alone (water bath)...
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