Arkadiusz Polewczyk

TL;DR: The most effective rye straw ozonation occurred while using the highest amount of the rye straw treated with lower ozone dose in the longest period of time, confirmed by SEM and FTIR analysis.

Abstract: This study investigated the influence of five factors on the degree of extraction of a petroleum pollutant from a soil matrix using a Soxhlet apparatus. In order to determine the optimal combination of the five factors, that is, the number of cycles per hour, extraction time, solvent type, the amount of drying agent, and the amount of water added, a Taguchi experimental design was used: five variables (with four levels each) in an L’16 orthogonal array. Optimum extraction conditions were found to be as follows: 50.0 mL of dichloromethane, 2 h extraction time, 7 cycles, 1.0 mL of water added/5.0 g of soil, and 1.5 g of sodium sulfate/5.0 g of sample. Using the presented method, more than 90% of the diesel fuel introduced into the model matrix was extracted. This indicates that the procedure is reliable and should be applied for environmental monitoring.

TL;DR: This article investigated the effect of ozonized rapeseed oil on the bioremediation of soil contaminated with diesel oil hydrocarbons performed by Bacillus mycoides NS1020.

TL;DR: In this article, the effect of tertbutyl-hydroquinone (TBHQ) on the activities of dehydrogenases and esterases, free fatty acid level, early plant growth of Sinapis alba, Lepidium sativum, and Sorghum saccharatum, pH, degradation of biodiesel and the rate of FAME assimilation during bioremediation process with two selected bacterial strains (Achromobacter xylosoxidans G21 or Sarcina spp.).