Sample preparation method for IR analysis of petroleum-contaminated soil: An innovative technology for ecological remediation using Miscanthus x giganteus
Ruslana Huminilovych,
Vitalii Stadnik,
Martyn Sozanskyi,
Pavlo Shapoval,
Valentina Pidlisnyuk,
Ihor Poliuzhyn,
Viktoriia Kochubei,
Yurii Hrynchuk,
Bohdan Korchak
Affiliations
Ruslana Huminilovych
Department of Physical, Analytical and General Chemistry, Lviv Polytechnic National University, 12 S. Bandery St., 79013, Lviv, Ukraine; Corresponding author.
Vitalii Stadnik
Department of Physical, Analytical and General Chemistry, Lviv Polytechnic National University, 12 S. Bandery St., 79013, Lviv, Ukraine
Martyn Sozanskyi
Department of Physical, Analytical and General Chemistry, Lviv Polytechnic National University, 12 S. Bandery St., 79013, Lviv, Ukraine
Pavlo Shapoval
Department of Physical, Analytical and General Chemistry, Lviv Polytechnic National University, 12 S. Bandery St., 79013, Lviv, Ukraine
Valentina Pidlisnyuk
Department of Environmental Chemistry and Technology, Faculty of Environment, Jan Evangelista Purkyne University in Ústí nad Labem, 400 96, Ústí nad Labem, Czech Republic
Ihor Poliuzhyn
Department of Physical, Analytical and General Chemistry, Lviv Polytechnic National University, 12 S. Bandery St., 79013, Lviv, Ukraine
Viktoriia Kochubei
Department of Physical, Analytical and General Chemistry, Lviv Polytechnic National University, 12 S. Bandery St., 79013, Lviv, Ukraine
Yurii Hrynchuk
Department of Physical, Analytical and General Chemistry, Lviv Polytechnic National University, 12 S. Bandery St., 79013, Lviv, Ukraine
Bohdan Korchak
Department of Civil Safety, Lviv Polytechnic National University, 12 S. Bandery St., 79013, Lviv, Ukraine
Miscanthus x giganteus phytoremediation of soil contaminated with petroleum was assessed in this study. A method of soil sample preparation for determining the total content of petroleum products by infrared spectrophotometry has been developed. It is a one-stage extraction method with minimal use of carbon tetrachloride as an extractant. This soil sample preparation method was environmentally friendly and cost-effective, as it required a significantly lower amount of extractant (15–30 ml of tetrachloromethane) compared to the commonly used threefold extraction method, which uses up to 150 ml of extractant. The extraction degree of petroleum products (PP) was determined to be from 81.78 % to 94.22 % after two days of extraction using the additive method of determining PP. It was observed that the presence of different fertilizer additives in the soil samples led to a reduction in the determined PP content in the following series: “without fertilizer” – “Biochar” additive – “Biohumus” additive. These results were compared with reference samples that did not involve the use of Miscanthus x giganteus. Furthermore, the main thermolysis stages of petroleum products sorbed by the soil matrix and the thermal behavior of an artificial soil sample spiked with PP were examined. Detailed interpretation of thermograms of laboratory soil samples was conducted at various phytoremediation stages.
