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1

Total petroleum hydrocarbon [TPHs] dissipation through rhizoremediation by plant species

100%
Zand A. D., Nabibidhendi G., Mehrdadi N., Shirdam R., Tabrizi A. M.
Polish Journal of Environmental Studies
|
2010
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tom 19
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nr 1
115-122
Total petroleum hydrocarbons (TPHs) are one of the most common groups of persistent organic contaminants. Plant-based remediation is a relatively new, efficient and environmentally friendly technology that can be promising for removing many contaminants like hydrocarbon pollutants. The main objectives of the current research were to investigate the phytoremediation efficiency of burningbush, flax, and tall fescue as well as the influence of petroleum hydrocarbons on growth characteristics of these plant species. In order to improve soil condition and study the effect of fertilization on plant growth in oil-contaminated soil, peat fertilizer was applied in a separate treatment. Unfertilized as well as fertilized soil samples were analyzed for TPH removal by GC-FID in different time intervals. All plant species showed promising growth behaviour in highly contaminated soil. A decrease of TPHs was found over the course of the experiment in all treatments. The maximum removal was obtained in flax, in which flax removed 97.9% of the initial TPHs from soil. Results demonstrated that the three studied plant species were effective and promising in removing TPHs from contaminated, aged soil.
2

Keratinolytic fungi in an acidic petroleum waste lagoon at a petroleum refinery

100%
Ulfig K., Plaza G., Terakowski M., Worsztynowicz A.
Roczniki Państwowego Zakładu Higieny
|
2002
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tom 53
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nr 3
The study was to examine the incidence of keratinolytic fungi in the lagoon with acidic petroleum wastes (before bioremediation) at a petroleum refinery situated within a highly populated area. High concentrations of petroleum hydrocarbons (non-polar and polar aliphatics and PAHs) made the growth of keratinolytic fungi in clay and litter from the lagoon impossible. The natural self-purification process considerably decreased the hydrocarbon contamination, increased the pH and caused the abundant growth of Trichophyton ajelloi in organic soil. This soil included the root-adjacent material from the grass growing in several green oases at the lagoon. It is possible that the strains of Trichophyton ajelloi adapted to the extreme lagoon's conditions actively participated in the soil self-purification process. The fungal species isolated in the present study did not pose a threat to public health. However, petroleum contaminants may support the growth of potential pathogens, for example Microsporum gypseum, in other types of soils.
3

Effects of different soil treatments on diesel fuel biodegradation

100%
Hawrot M., Nowak A.
Polish Journal of Environmental Studies
|
2006
|
tom 15
|
nr 4
The effect of soil modification on diesel fuel removal from soil in field conditions was studied. The experiment was established in the form of microplots. Diesel fuel was introduced into the soil at the concentration of 5% (ww. - in count on layer 15 cm depth of plot 1x1 m size). Particular experimental variants were modified by means of fertilization, stirring and inoculation with microorganisms active in the process of biodegradation of petroleum-derived pollutions. Diesel fuel content of soil was determined with the method of ether extraction, i.e. by assaying the concentration of total hydrocarbons. The results obtained were elaborated statistically using analysis of variance. The research carried out demonstrated that the efficiency of diesel fuel biodegradation increased with respect to the modifications applied. The greatest changes of extractable hydrocarbons were observed after the introduction of select microorganisms into fertilized and stirred soil - to 89% biodegradation of diesel fuel.
4

The effects of papilionaceous plants and biopreparation on petroleum hydrocarbons degradation in aged-polluted soil

100%
Zablocka-Godlewska E., Przystas W.
Archiwum Ochrony Środowiska
|
2006
|
tom 32
|
nr 4
5
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Microbial effects of manure from poultry droppings and pig dung in diesel-contaminated soil

80%
Coo A. E., Oviasogie F. E., Ikhajiagbe B.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
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2022
|
tom 103
|
nr 4
6

Pollution of Klaipeda Port Waters

70%
Stakeniene R., Galkus A., Joksas K.
Polish Journal of Environmental Studies
|
2011
|
tom 20
|
nr 2
Twelve consecutive seasonal surveys were carried out in Klaipeda port, Lithuania, in 2006-08. Water parameters such as temperature, pH, salinity, dissolved oxygen, particulate material, nutrients (N/NH₄⁺, N/NO₂⁻, N/NO₃⁻, P/PO₄³⁻), petroleum hydrocarbons, and heavy metals (Cu, Zn, Ni, Pb, Cr, Cd, Hg) were determined in both the surface and near-bottom water horizons. Total contamination of port waters was evaluated and the patterns of seasonal and spatial contamination patterns revealed. It was determined that the level of water contamination in Klaipeda and its separate water areas depends on the input of pollutants from the Curonian Lagoon basin and local sources, water circulation patterns, and seasonal dynamics of water parameters. As Klaipeda is in a zone of circulation and maximal interface of fresh (from Curonian Lagoon) and saline (Baltic Sea) waters, its water pollution is associated with the dominant type of water. The highest levels of pollution, in combination with the highest water temperatures, highest concentrations of particulate material and smallest concentrations of O₂, occur in summer, when heavy metals, lead in particular, are the dominant pollutants in the water.
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