Bioremediation of soil polluted with oil

Abstract

Microplastics have reached all corners of our planet, including soil and water. Plastic-degrading bacteria are seen as a promising, environmentally friendly tool for the bioremediation of soil polluted with microplastics. The petroleum origin of plastics makes them candidates for bioremediation analogous to the bioremediation of soil polluted with oil and its derivatives. A mud pit, located near the village of Turija, used for mud formation for the lubrication of drill pipes for drilling rigs, ended up polluted with oil and its derivatives. It was bioremediated using the in situ procedure. The content of n-hexane extractable substance, total petroleum hydrocarbon, dry substance, and loss on ignition were analyzed.

Multidimensional fluorescence spectroscopy of wine using synchronous excitation/emission matrices and time-resolved fluorescence interferometric detection

“…This EEM method may provide information on the fluorescent compounds and their variability in wine, which can be related to a variety of wine characteristics. For example, Mutavdic et al [22] reported that EEM fluorescence spectroscopy in combination with appropriate statistical analysis has the potential to differentiate samples of a single wine varietal based on differences in their composition brought about by regionality. However, the shortcoming of this and some other related works [16,23,24], is in the method used to overcome the inherently high optical density of the wine in the spectral region of interest.…”

“…These EEMs can be subjected to multivariate analysis using routines such as Parallel Factor Analysis (PARAFAC) [38] or Multivariate Curve Resolution-Alternating Least Squares (MCR-ALS) [39], in order to estimate the number of absorbing and emitting species and extract the excitation and emission spectra of each of the assumed number of discrete components, as reported previously [15,18,22,23,37]. However, as seen from figure 5 the spectra are broad and structureless, and can comprise a large number of underlying absorbing and/or emitting components with highly overlapping spectral features.…”

Spectroscopic Analysis of Microplastic Fibers Released During Laundry Washing Cycle

“…However, due to the relatively low hardness of polymers, mechanical forces applied to polymer materials can generate microplastics, which are small particles that separate from the source material. The mounting concerns about the potential impact of microplastics on human health [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] and the well-being of other living organisms [6,18] have spurred scientists worldwide to take a keen interest in the study of microplastics. Consequently, numerous investigations have been conducted to examine their health effects, identify their sources [12,[19][20][21][22][23][24][25][26][27][28], explore their pathways [9,17,19,23,[29][30][31][32][33], and develop possible mitigation strategies [21,[34][35][36][37].…”

“…The mounting concerns about the potential impact of microplastics on human health [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] and the well-being of other living organisms [6,18] have spurred scientists worldwide to take a keen interest in the study of microplastics. Consequently, numerous investigations have been conducted to examine their health effects, identify their sources [12,[19][20][21][22][23][24][25][26][27][28], explore their pathways [9,17,19,23,[29][30][31][32][33], and develop possible mitigation strategies [21,[34][35][36][37]. Microplastic particles can manifest in various forms, including pellets, spheres, fragments, fibers, foams, films, granules, and more [38].…”

“…Consequently, numerous investigations have been conducted to examine their health effects, identify their sources [12,[19][20][21][22][23][24][25][26][27][28], explore their pathways [9,17,19,23,[29][30][31][32][33], and develop possible mitigation strategies [21,[34][35][36][37]. Microplastic particles can manifest in various forms, including pellets, spheres, fragments, fibers, foams, films, granules, and more [38]. Commonly encountered types of microplastics found in nature encompass polypropylene (PP) from plastic caps, polyethylene (PE) from single-use plastic bags, polyethylene terephthalate (PET) from plastic bottles, polyester (PES) from synthetic clothing, polyamide (nylon) from fishing nets and synthetic clothing, polyvinyl chloride (PVC) from plastic pipes, polystyrene (PS) from styrofoam, and others [39].…”