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The effect of flax seed dressing with biopreparations, chitosan, and its derivatives on fungal communities in soil was evaluated. Biopreparation organisms consisted of: Pseudomonas aureofaciens, P. fluorescens, Pythium oligandrum, a mixture of photosynthetic and Lactobacillus bacteria, and unidentified yeasts and fungi. Chitosan and its derivative active ingredients were used: chitosan microcrystalline,...
In the article the method of the analysis of zearalenone in the aqueous environment using GC-MS chromatography with electron ionization (EI) is described. The separation of zearalenone from the aqueous matrix was performed by means of solid phase extraction with the use of SupelcleanTM ENVI-18 tubes. Extraction efficiency was determined by the analysis of deionized and tap water samples of volume...
Studies of the swan mussel population in lake Dąbie (Odra estuary) were conducted in 2007. Measurements were taken of shell length, height and girth, and age was determined. The Anodonta cygnea individuals studied were from the 1+ to 5+ age classes. Clear differentiation was noted in the meristic characters of the mussels collected from the northern part of the lake (Dąbie Wielkie) and from the southern...
The contamination levels of V, Cr, Ni, Cu, Zn, Cd, and Pb in canal sediments (Danube alluvial formation) were assessed to evaluate environmental quality and potential contamination. Results indicate that silicates and oxides (Fe and Mn) are important for binding investigated elements (Cr, Zn, Cd, Ni, V Pb, and Cu). The values of calculated enrichment factors indicate that the investigated locations...
Manganese (Mn) is an important element in environmental geochemistry. In many natural aquatic systems, high concentrations of manganese are present with organic and inorganic matters. The oxidation of Mn(II) in aqueous systems has been extensively studied. But inorganic and organic matter effects on oxidation have not been fully clarified. It is clear that Mn(II) oxidation in the presence of inorganic...
The compatibility of the entomopathogenic nematodes Steinernema feltiae and Heterorhabditis bacteriophora with 22 different pesticides was determined under laboratory conditions. The mortality of nematode invasive larvae and their virulence against the insect T. molitor were investigated. H. bacteriophora showed different sensitivity from S. feltiae to tested pesticides, especially at pyrethrum+piperonyl-butoxide...
The results of a dendrochronological investigation carried out on Scots pine (Pinus sylvestris L.) in the vicinity of JSC ‘Achema’ are presented. We found that pines sensitive and resistant to pollution exist in the population. Trees judged to be sensitive to pollution grew much faster in the period before the pollution occurred in comparison to resistant trees (p=0.00). We found that the dominant...
Our work shows that active masses modified with manganese that are used to remove Mn(II) and Fe(II) can also remove the heavy metals Pb and Cd. The study was conducted for solutions with a concentration of cation 100 mg/L and demonstrated the high correlation between hydroxo-complexs and their potential, and the process of removing investigated metals (Pb and Cd).
This study investigated three earth fish ponds fed with biologically treated wastewater from the treatment plant in Olsztynek. The ponds were stocked with the following fish species with a varied age structure: common carp (Cyprinus carpio), tench (Tinca tinca), European pike-perch (Sander lucioperca), and roach (Rutilus rutilus). Zooplankton samples were collected once a month, from April to October...
In the activated sludge process, the share of filamentous bacteria is crucial for proper settlement and high sewage treatment efficiency. Disequilibrium of the microbial community may be a reason for the appearance of bulking episodes. During 19 months (August 2007-February 2009) activated sludge samples were collected and analyzed by physicochemical, microscopic, and molecular methods. Amplified...
Composition of wastewater is complicated. It is rich in micro- and macroelements, plus many carbon species. During wastewater treatment carbon changes chemical form and creates sewage sludge as a by-product. Sewage sludge is rich in nutrients and organic compounds, and possesses a potential soil-forming value. Hence it can improve soil properties, especially when applied to poor sandy soils or sludge...
Using HPLC method with DAD detection for the simultaneous determination of 15 pharmaceuticals from different therapeutic groups in surface water and wastewater was proposed. The determined drugs included the analgesic non-steroidal anti-inflammatory drugs (NSAIDs) paracetamol (PAR), metamizole (MTZ), aspirin (ASP), salicylic acid (SAL), ibuprofen (IBU), ketoprofen (KET), diclofenac (DIC), and naproxen...
We studied the removal of K-2BP from aqueous solution by cetyltrimethylammonium chloride-modified bentonite with polyacrylamide flocculant (CTAC-bentonite/PAM). The preliminary results disclose that the CTAC modification method can potentially enhance the removal efficency of bentonite and, by combination with PAM, the adsorbed bentonite can settle within a short sedimentation time. In addition, alkaline...
Our objective was to evaluate the effects of distance from the source of emission on fluorine content in selected tissues. Studies were conducted in the Central Pomerania region in 2004-06. The studies included stables located in two zones: zone I near the mouth of the Wisła River 50 km west of the source of emission, and zone II near the mouth of the Łeba River 80 to 100 km west of the source of...
The aim of this work was to show how gibberellic acid (GA₃) affects growth, metal biosorption, and the content of essential metabolites (cell number, proteins, monosaccharides, chlorophyll a and b, and total carotenoids) in unicellular green algae Chlorella vulgaris treated with lead (Pb) and cadmium (Cd) during 3 days of culture. Under the influence of 10⁻⁵ M GA₃, algal cells bioaccumulated and bioconcentrated...
The main aim of our study was to verify the influence of climatic factors on the formation of abnormal 3-needle dwarf shoots in the two-needle Pinus mugo. Twenty individuals of the species, which had at least one abnormal brachyblast in 2002, have been studied in the Tatra Mountains (Carpathians) and an additional 20 in the Giant Mountains (Sudetes) over a period of 11 years. The number of atypical...
Methane (CH₄) and carbon dioxide (CO₂) fluxes at the sediment-water interface were studied during autumn in three reservoirs in Poland. The theoretical diffusive fluxes of dissolved pore-water carbon gases to the overlying water ranged from 0.16 mg・m⁻²d⁻¹ to 3.84 mg・m⁻²d⁻¹ and from 20.68 mg・m⁻²d⁻¹ to 99.88 mg・m⁻²d⁻¹ for methane and carbon dioxide, respectively. The comparison between the diffusive...
Bioavailability of individual chemical forms of metals occurring in soil is a basic source of its accumulation in plants. Soils from a root layer collected from the stands of stinging nettle Urtica dioica L., reflect different habitat conditions in the area of Wisła, a town in southern Poland. The Bukowa, Czarne, Głębce, Jawornik, Kubalonka, Malinka, Kobyla, and Salmopol also were research subjects...
This paper describes a direct method for arsenic determination and speciation in wine samples by hydride atomic emission spectrometry with inductively coupled plasma (ICP-AES). Optimization of the method included investigation of several parameters that impact the intensity of spectral lines: concentration of reaction media (hydrochloric acid), reduction reagent concentration (sodium borhydride),...
One of the biggest problems in the metallurgical and foundry industries is the large quantity of dust generated during production processes. The most important is furnace dust created when the molten metal is prepared and subsequently sucked out by the dust removal system. At the Department of Foundry, experiments using the pneumatic injection method were carried out to utilize these kinds of materials...
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