EiT 5 2012

Zróżnicowanie fitocenotyczne biochor łąk w ramach programu rolnośrodowiskowego
PHYTOCOENOTIC DIFFERENTIATION OF MEADOW BIOCHORES UNDER AGRI–ENVIRONMENT SCHEME
Mapping of plant communities biochores was carried out using the GPS receiver on meadows of the Bydgoszcz Channel Valley in 2006–2008. Meadows were with agri–environmental scheme (AES) or without. A total of 32 plant communities were encountered on areas with AES and 23 outside. The average number of communities and their surfaces were similar. Ostericum palustre patches were only found on surfaces were the mowing time was delayed on purpose as a rule of the AES.
Key words: agri–environment scheme, biochores, meadow, biodiversity, Bydgoszcz Channel Valley, Ostericum palustre
M. Korczyński, E. Krasicka–Korczyńska, A. Bujarkiewicz                        str. 289


Zróżnicowanie florystyczne zbiorowisk nieużytkowanych łąk z rzędu Arrhenatheretalia na Pogórzu Przemyskim
FLORISTIC DIVERSITY OF UNUSED MEADOW COMMUNITIES OF THE ARRHENATHERETALIA ORDER IN PRZEMYSKIE FOOTHILLS

Four plant communities are described in this study: Poa pratensis–Festuca rubra, with Festuca rubra, with Agrostis capillarys, and with Anthoxanthum odoratum, occurring on unused meadows and fields of Przemyskie Foothills (SE Poland) in the context of selected ecological factors, calculated with laboratory and phytoindication method by Ellenberg. The communities were identified on the basis of 222 phytosociological releves made in 2006–2010. Species richness and S–W biodiversity index were taken into consideration. The distinguished communities occurred on mesic mineral and acidic soils with low phosphorus, intermediate nitrogen and potassium, and high magnesium contents. Most commonly they developed on insolated, intermediately warm sites of south and western slopes. The highest average species richness and S–W H’ values had communities with Agrostis capillaris, and the lowest with Anthoxanthum odoratum. Except for the dominating species, differences in floristic compositions were slight. Meadow species of the Arrhenatheretalia order and Molinio–Arrhenatheretea class had a substantial share in the floristic composition. There was a conspicuous occurrence of numerous ruderal and segetal species, particularly in the Agrostis capillaris community, which indicates the origin of field–grasslands. The share of trees and shrubs was the highest in the community with Anthoxanthum odoratum, while their cover in the community with Agrostis capillaris. Protected and rare species, such as Platanthera bifolia, Centaurium erythraea, Dianthus deltoides, Polygala vulgaris, and Cirsium decussatum, most commonly occurred in the community with Agrostis capillaris.
Key words: plant community, unused meadows, fallowed fields, origin of field–grasslands, biodiversity, Przemyskie Foothills, conservation
P. Wolański, K. Rogut                                            str. 294


Zastosowanie metod numerycznych do oceny wpływu energetycznego wykorzystania paliw na stan powietrza atmosferycznego
APLLICATION OF NUMERICAL METHODS TO INFLUENCE EVALUATION OF ENERGETICAL FUELS USING ON ATMOSPHERIC AIR CONDITION

In this article showed the possibilities of prediction and combustion products decrease, in particular NOx, during co–combustion process of traditional and renewable (biofuels) fuels with numerical modelling using. The primary fuel’s was natural gas. Biofuels introduced to combustion process as reburning fuels. The following biofules make subject to analysis, namely: a straw, a hay, a sawmill wastes, an energetic willow, a rape oil and synthetic biogas.  The conventional fuel’s was diesel oil. The chemistry of the combustion process was modelled using the software CHEMKIN. Numerical computations were performed for the experimental chamber. Then was executed the verification on basis of experimental data results.
Key words: combustion, reburning, biofuels, numerical modeling, CHEMKIN
M. Zajemska, A. Poskart                                        str. 306


Analiza morfologiczna wybranych ekotypów Lotus corniculatus L. z kolekcji Instytutu Hodowli i Aklimatyzacji Roślin w Bydgoszczy
MORPHOLOGICAL ANALYSIS OF CHOSEN ECOTYPES LOTUS CORNICULATUS L. FROM THE COLLECTION OF THE PLANT BREEDING AND ACCLIMATIZATION INSTITUTE IN BYDGOSZCZ

In 2010 an examination of morphological traits in the collection of ecotypes of the bird’s foot trefoil was carried out by the Bydgoszcz Research Division of Plant Breeding and Acclimatization Institute. 6 chosen ecotypes and one cultivar were compared in detail in the study. They stated, that progeny of ecotypes of the bird’s foot trefoil coming from natural location are keeping traits of the description and dynamics of the growing, it is possible to assign to the dissimilarity for conditions of their habitations of the origin. Substantial differences referred between ecotypes in the range of regrowth after moving the vegetation and the capacity for the regeneration after cutting.
Key words: Lotus corniculatus, collection of ecotypes, morphological traits
E. Jendrzejczak, W. Majtkowski, J. Schmidt                                str. 313



Analiza możliwości odzyskiwania ciepła odpadowego w przemyśle rafineryjnym z wykorzystaniem układów ORC
ANALYSIS OF WASTE HEAT UTILIZATION IN THE PETROCHEMICAL INDUSTRY WITH THE ORGANIC RANKINE CYCLE SYSTEM USAGE

One of the challenges for contemporary technology is seeking new opportunities for electricity production, especially through waste or unused energy utilization processes. It is important from an economical and technological, as well as environmental point of view. Systems based on the Organic Rankine Cycle (ORC), designed for waste heat recovery processes and dedicated for application in existing industrial installations, become one of the most desirable solutions in this field. The following paper describes a preparation of ORC technology for the refining industry, where the heat from the facility, mostly unproductively wasted, can be reused as a source of additional electricity. The process of working fluid selection for such a system and the possibility of non–invasive improvement of an existing installation have been outlined. Also, the potential benefits of economic and ecological solutions have been identified and shown.
Key words: Organic Rankine Cycle, refining industry, waste heat usage, system design, working fluids.
M. Ryms, T. Pyś, W. M. Lewandowski, E. Kugmann–Radziemska                     str. 321


Ocena toksyczności osadu poflotacyjnego (zbiornik „Wartowice”) przed i po zastosowaniu biopreparatów z wykorzystaniem testu IQ–TOX TEST
THE ASSESSMENT OF TOXICITY OF THE POST– FLOTATION SLUDGE FROM FLOTATION TAILING TANK “WARTOWICE” BEFORE AND AFTER THE APPLICATION OF BIOPREPARATION WITH THE USE OF IQ–TOX TEST

In the process of copper ore enrichment a large quantities of post–flotation sediments are created. This toxic sludge must be deposited within a special areas called post–flotation tailings. These types of landfills pose a threat to the surrounding environment. Thus, the problem will refer to future restoration of these areas due to their high toxicity and lack of vegetation in the area of this type of waste landfills. We studied one of these landfills “Wartowice”. In order to conduct a future proper revitalisation it is recommended to assess the toxicity of sediments before and after addition of special mixture which could reduce the toxicity of sediments. The IQ–Tox Test – yet not used to assess this type of pollution – was applied for our studies. We found that post–flotation sediment proved to be highly toxic to the Daphnia magna before the application of nutrients, but after the addition the mixture of autochtonous bacteria, biosurfactants and inorganic waste the toxicity of sediments decreased significantly. The application of selected components of mixture (autochtonous bacteria or biosurfactants alone) without the addition the inorganic waste does not cause the same strong effect.   
Key words: biopreparation, revitalization, post–flotation sludge, copper, IQ–Tox
M. Krawczyńska, J. Rybak                                        str. 330


 

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