The Impact of Chemical Additives on the Process of Biodegradation of Oil Products / Cheminių Priedų Įtaka Naftos Produktų Biodegradacijos Procesui / Влияние Химических Добавок На Процесс Биодеградации Нефтепродуктов

Žukauskaitė, Audronė; Jakubauskaite, Viktorija; Ambrazaitienė, Dalia; Zabukas, Vytenis; Paulauskienė, Tatjana

doi:10.3846/16486897.2011.633336

Cited by 6 publications

(1 citation statement)

References 34 publications

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“…Oxidation with hydrogen peroxide occurs mostly through the generation of free hydroxyl radicals, and the most widespread activator used for the radical pathway is ferrous iron. However, this system may utilise the application of different concentrations of H 2 O 2 (2Á20%) (Watts et al 1999;Ž ukauskaitė et al 2012) and carriers of hydrogen peroxide such as CaO 2 (Arienzo 2000;Northup, Cassidy 2008;Goi et al 2011), and it may use chelating agents such as EDTA in addition to transition metals (Sun, Pignatello 1992;Vicente et al 2011). The modified Fenton system has been used to overcome apparent disadvantages in the use of the classical system, including the costly acidic range needed to maintain the radical reactions and the hydroxyl radicals' non-productive consumption, and it is based on the fundamental principles of Fenton chemistry.…”

Section: Introductionmentioning

confidence: 99%

Use of Hydrogen Peroxide and Percarbonate to Treat Chlorinated Aromatic Hydrocarbon-Contaminated Soil

Viisimaa

Goi

2014

Journal of Environmental Engineering and Landscape Management

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Trinitrotoluene (TNT), a commonly used explosive for military and industrial applications, can cause serious environmental pollution. 28-day laboratory pot experiment was carried out applying bioaugmentation using laboratory selected bacterial strains as inoculum, biostimulation with molasses and cabbage leaf extract, and phytoremediation using rye and blue fenugreek to study the effect of these treatments on TNT removal and changes in soil microbial community responsible for contaminant degradation. Chemical analyses revealed significant decreases in TNT concentrations, including reduction of some of the TNT to its amino derivates during the 28-day tests. The combination of bioaugmentation-biostimulation approach coupled with rye cultivation had the most profound effect on TNT degradation. Although plants enhanced the total microbial community abundance, blue fenugreek cultivation did not significantly affect the TNT degradation rate. The results from molecular analyses suggested the survival and elevation of the introduced bacterial strains throughout the experiment. Reference to this paper should be made as follows: Nõ lvak, H.; Truu, J.; Limane, B.; Truu, M.; Cepurnieks, G.; Bartkevičs, V.; Juhanson, J.; Muter, O. 2013. Microbial community changes in TNT spiked soil bioremediation trial using biostimulation, phytoremediation and bioaugmentation, Journal of Environmental Engineering and Landscape Management 21(3): 153Á162. http://dx.Abstract. This study compared treatment methods that utilised a liquid carrier of hydrogen peroxide and a solid carrier, percarbonate, for p-dichlorobenzene, p-chloro-m-cresol and p-chlorothymol degradation in the soil. The targeted chlorinated aromatic contaminants in the soil degraded to a certain level when treated with the liquid hydrogen peroxide, but the removal efficacy was not dependent on the dosage. In contrast, an increase in the percarbonate dosage enhanced the contaminant removal. Supplementary ferrous iron was more effective for the treatment that employed the liquid carrier of hydrogen peroxide than the treatment employing the solid carrier. Although acidic pH conditions (initial pH of 2.5) favoured contaminant degradation using liquid hydrogen peroxide, the treatment involving percarbonate resulted in more effective contaminant removal without any soil pH preadjustment. Therefore, the solid carrier of hydrogen peroxide, percarbonate, was concluded to be an effective alternative to the liquid carrier, resulting in greater contaminant removal at natural soil pH values.

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Section: Introductionmentioning

confidence: 99%

Use of Hydrogen Peroxide and Percarbonate to Treat Chlorinated Aromatic Hydrocarbon-Contaminated Soil

Viisimaa

Goi

2014

Journal of Environmental Engineering and Landscape Management

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The characteristics of BTEX concentration in various types of environment in the Baltic Sea Region, Lithuania

Marčiulaitienė

Šerevičienė

Baltrėnas

et al. 2016

Environ Sci Pollut Res

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Benzene, toluene, ethylbenzene and xylene (BTEX) form an important group of volatile organic compounds (VOCs) affecting troposphere and posing risk to human health. The article examines the Mažeikiai area in the northern part of Lithuania where one of the largest Central European companies and the only oil refinery in the Baltic region (200,000 barrels/day) are close to the Baltic Sea. The research carried out mainly focuses on the following objectives: quantitative assessment of the amounts of BTEX occurring in the impact zone of the oil refinery and transport; estimation of background BTEX concentrations in the region; establishing the main sources of BTEX in the region researched and evaluation of impact of meteorological parameters on BTEX concentrations in different seasons. The passive measurement method was used for analysing VOCs (benzene (CH), toluene (CH), ethylbenzene (CH) and ortho-, meta- para-xylene (CH)). The research was carried out in 2010-2012. Its results showed that the average annual concentration of benzene was below the threshold value of 5 μg/m. Within the measurement period, the average concentration of benzene fluctuated from 1.2 to 2.4 μg/m, that of toluene varied from 1.3 to 3.5 μg/m, that of ethylbenzene varied from 0.3 to 0.7 μg/m and that of xylene (calculated as para-, meta- and ortho-xylene) varied from 1.0 to 2.4 μg/m. Compared to the established BTEX concentration, the actual background BTEX concentration in the urban area is two times higher. The seasonal analysis suggests that the highest values of benzene concentration are observed in the winter season.

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Investigation of the capsulated material properties for possibility of using it as recoverable raw materials

Shtripling

Belkova

Kholkin

et al. 2019

NANOSCIENCE AND NANOTECHNOLOGY: NANO-SciTech

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The Impact of Chemical Additives on the Process of Biodegradation of Oil Products / Cheminių Priedų Įtaka Naftos Produktų Biodegradacijos Procesui / Влияние Химических Добавок На Процесс Биодеградации Нефтепродуктов

Abstract: Journal of Environmental Engineering and Landscape ManagementPublication details, including instructions for authors and subscription information:Abstract.

Cited by 6 publications

References 34 publications

Use of Hydrogen Peroxide and Percarbonate to Treat Chlorinated Aromatic Hydrocarbon-Contaminated Soil

Use of Hydrogen Peroxide and Percarbonate to Treat Chlorinated Aromatic Hydrocarbon-Contaminated Soil

The characteristics of BTEX concentration in various types of environment in the Baltic Sea Region, Lithuania

Investigation of the capsulated material properties for possibility of using it as recoverable raw materials

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