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Gleby organiczne projektowanego użytku ekologicznego “Łąki koło Owczar”

Sammel A, Siuda P., Mrugowski W

Rocznik Ochrona Środowiska

2012

Tom 14

427--436

The organic soils belong to group of soils, which they quickly undergo transformations in result intentional or unaware activity of people. The aim of the studies was to determine the qualification of soils systematic membership, valuation of their degradation and content of microelements of organic soils of projected the environmental area of "Meadow near Owczar".The projected the environmental area of "Meadow near Owczar" will be locate on northern-east from Wolczkowo village, on area of Municipal Forests of Stettin. The surface area of studied terrain is 8.97 hectares.Investigations on projected object were conducted in 2009. Investigation was made according to contained recommendations in study of Ilnicki (2002). On area of study was executed 10 bore-holes and 3 soil exposures, which was taken including 26 soil samples. After grinding and drying, the sampled soils were mineralised in the mixture of concentrated acids HNO3+HCIO4, (at the ratio 1:1), which made it possible to determine their chemical content. Cd, Pb, Zn, Cu, Ni, Co, Mn, Fe contents were determined by the method of atomic absorption (FAAS) spectrometry using Unicam Solaar 929 spectrophotometer. Besides, pH(KCl) was determined potentiometrically and losses on ignition at the temperature of 550 degrees C. The studies showed that the processes of degradation of peat are faintly advanced. The surface horizon of peat bog is developed from muck and contains a varying amount of organic matter from 52.1 to 62.9%. Reaction on this horizon is mostly acid (pH - 5.04-5.46). However peat horizon contains a varying amount of organic matter from 67.6 to 76.1% and reaction of this soil ranged from acid or lightly acid (pH - 5.37-5.78). The content of microelements oscillated between the values recognized as natural for organic soils.

Clathrate hydrates — efficient and clean energy resource

Siuda P., Sadlej J.

Challenges of Modern Technology

2011

Vol. 2, no. 4

49--53

Clathrate hydrates are icelike structures in which water molecules form cavities enclathrating many possible types of guest molecules. Among most important representatives of this group of solid structures are methane and carbon dioxide clathrate hydrates. The first one is widely present in Nature and in the future will serve as an energy resource. Carbon dioxide clathrate hydrate may on the other hand serve as a storage reservoir for this green house gas providing cheap way to lower its emission to atmosphere. Those are just two of many more important issues that catalyse growing interest of scientific world in clathrate hydrates. Characterisation of their properties is crucial to develop technologies, that will enable us to utilize their manifold possible applications. During this presentation I will discuss some of my investigations concerning NMR properties of clathrate hydrates.