Wyniki wyszukiwania - BazTech

1

Ruda darniowa w Polsce : występowanie i zastosowanie w architekturze

Pawlik Tomasz

Przegląd Geologiczny

|

2023

|

Vol. 71, nr 11

555--566

EN

The paper presents the characteristics of lump bog ore as an original building material. In architec¬ture, bog ore was used as both a construction and decorative stone. The use of this rock material was determined, among other things, by its easy accessibility, colour qualities and ability to prevent dampness inwalls. In Poland, it is possible to see buildings dating from various historical epochs (10th-21st c.). Buildings made of bog ore are concentrated only in certain regions of Poland, where they are an important element of the cultural landscape and historical heritage. They are also interesting geoturistic objects. The paper also characterizes selected physico-mechanical properties of the bog ore from Ruda Milicka and Książ Śląski. The determinations of these parameters (density, bulk density, open porosity, total porosity, absorbability at atmospheric pressure, abrasiveness, compressive strength) were made in accordance with PN-EN standards.

2

Iron-containing phases in metallurgical and coke dusts as well as in bog iron ore

Szumiata T., Rachwał M., Magiera T., Brzózka K., Gzik-Szumiata M., Gawroński M., Górka B., Kyzioł-Komosińska J.

Nukleonika

|

2017

|

Vol. 62, No. 2

187--195

EN

Several samples of dusts from steel and coke plants (collected mostly with electro filters) were subjected to the investigation of content of mineral phases in their particles. Additionally, sample of bog iron ore and metallurgical slurry was studied. Next, the magnetic susceptibility of all the samples was determined, and investigations of iron-containing phases were performed using transmission Mössbauer spectrometry. The values of mass-specific magnetic susceptibility  varied in a wide range: from 59 to above 7000 × 10−8 m3kg−1. The low values are determined for bog iron ore, metallurgical slurry, and coke dusts. The extremely high  was obtained for metallurgical dusts. The Mössbauer spectra and X-ray diffraction patterns point to the presence of the following phases containing iron: hematite and oxidized magnetite (in coke and metallurgical dusts as well as metallurgical slurry), traces of magnetite fi ne grains fraction (in metallurgical dusts), amorphous glassy silicates with paramagnetic Fe3+ and Fe2+ ions, traces of pyrrhotite (in coke dusts), α-Fe and nonstoichiometric wüstite (in metallurgical slurry), as well as ferrihydrite nanoparticles (in bog iron ore). For individual samples of metallurgical dusts, the relative contributions of Fe2+/3+ ions in octahedral B sites and Fe2+ ions in tetrahedral A sites in magnetite spinel structure differs considerably.

3

Charakterystyka kwasów huminowych gleb z poziomami rudy darniowej

Pastuszko A., Pracz J.

Przemysł Chemiczny

|

2012

|

T. 91, nr 4

559-563

PL

Przedstawiono wyniki składu pierwiastkowego (C, H, N, O), współczynnika ekstynkcji E₄/E₆ oraz liczby grup COOH i OH kwasów huminowych (KH) gleb z poziomami rudy darniowej oraz dokonano analizy struktury KH przy użyciu analizy spektrofotometrycznej w zakresie IR.

EN

Sixteen samples of Polish ferro-muck, ferro-mucky, ferrohumic and ferro-mucous soils taken from 4 sites (depth up to 48 cm) were studied for elementary compn., extinction (color) index and content of functional groups (COOH, OH). The humic acids from bog iron ore levels contained more C and O but less N and H than those from the surface levels.

4

Examination of biogas hydrogen sulphide sorption on a layer of activated bog ore

Gaj K., Cybulska H., Knop F., Steininger M.

Environment Protection Engineering

|

2008

|

Vol. 34, nr 4

33-41

EN

The efficiency of hydrogen sulphide removal from biogas using bog ore-based desulphurizing pulp is investigated. Measurements were carried out on quarterly basis over a five-year period in one of Polish municipal sewage treatment plants. Measurement results are presented as a function of H2S removal efficiency drop over time, with the resulting times of desulphurizing layer breakthrough compared with theoretical calculations. Sorption capacity, per unit consumption, and relative cost of the sorbent were estimated, which allows the results to be generalized and applied in comparable treatment plants.

PL

Przedstawiono wyniki badań nad skutecznością usuwania siarkowodoru z biogazu za pomocą masy odsiarczającej utworzonej na bazie rudy darniowej. Pomiary wykonywano co kwartał, przez pięć lat, w jednej z krajowych oczyszczalni ścieków miejskich. Wyniki pomiarów opracowano w postaci zależności zmniejszania się skuteczności usuwania H2S od czasu, a uzyskane czasy "przebicia" złoża porównano z czasami obliczonymi teoretycznie. Określono chłonność, jednostkowe zużycie oraz oszacowano względne koszty sorbentu, co pozwoliło uogólnić wyniki badań i wykorzystać je w podobnych obiektach.