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Wyszukujesz frazę "environmental protection" wg kryterium: Wszystkie pola


Tytuł:
Thirty-seven years of archives of environmental protection
37 Lat Czasopisma Archives of Environmental Protection
Autorzy:
Rosik-Dulewska, Cz.
Michalski, R.
Powiązania:
https://bibliotekanauki.pl/articles/204550.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
historia czasopisma
Archives of Environmental Protection
ochrona środowiska
dane statystyczne
environmental engineering and protection
journal's anniversary
Institute of Environmental Engineering of PAS
Opis:
Archives of Environmental Protection is the oldest Polish scientifi c journal regarding environmental engineering and protection. It has been published by the Institute of Environmental Engineering of PAS in Zabrze since 1975. The Committee on Environmental Engineering of PAS became its co-publisher in 2011. The quarterly publishes original articles (earlier, also announcements) concerning broadly understood areas of the environmental engineering and protection. The subjects include: air, land and water protection; technologies of fl ue gases, soil and wastewater treatment; transformations and transportation of pollutants in the environment; measurement techniques used in research and engineering as well as environmental monitoring. The published articles also focus on the reclamation and management of derelict lands, environmental management and other questions related to the environmental engineering and protection. The journal has been abstracted by Thomson Scientifi c since 2006 in the following databases: Science Citation Index Expanded, Biological Abstracts and BIOSIS Previews. Moreover, the journal was given the impact factor (IF) in 2010. The following article presents statistical data as well as a brief history and description of the journal.
Archives of Environemntal Protection to najstarsze polskie czasopismo naukowe z zakresu ochrony i inżynierii środowiska. Wydawane jest od 1975 roku przez Instytut Podstaw Inżynierii Środowiska PAN w Zabrzu. W 2011 r. współwydawcą został Komitet Inżynierii Środowiska PAN. W kwartalniku publikowane są oryginalne artykuły (wcześniej także komunikaty) z zakresu szeroko rozumianej inżynierii i ochrony środowiska, w szczególności dotyczące ochrony powietrza atmosferycznego, ochrony wód i powierzchni ziemi; technologii oczyszczania gazów odlotowych, ścieków oraz gleb; przemian i transportu zanieczyszczeń w środowisku; technik pomiarowych stosowanych w inżynierii i badaniach oraz monitoringu środowiska. Poruszane są również tematy rekultywacji i zagospodarowania terenów zdegradowanych; kształtowania środowiska oraz innych zagadnień związanych z inżynierią i ochroną środowiska. Od roku 2006 wydawnictwo rejestruje Thomson Scientifi c w bazach: Science Citation Index Expanded, Biological Abstracts i BIOSIS Previews, a od 2010 kwartalnik ma przyznany wskaźnik Impact Factor obliczany za 2009 r. W niniejszej pracy przedstawiono wybrane dane statystyczne oraz krótką historię i charakterystykę czasopisma.
Źródło:
Archives of Environmental Protection; 2012, 38, 3; 3-15
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental Protection Versus Foundry Engineering Practice
Autorzy:
Maj, M.
Werrtz, J.
Piekło, J.
Powiązania:
https://bibliotekanauki.pl/articles/380536.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
environment pollution
foundry industry
environmental protection
Europe
Asia
comparison of approach
zanieczyszczenie środowiska
przemysł odlewniczy
ochrona środowiska
Europa
Azja
porównanie podejścia
Opis:
Theory and practice of environmental protection in the case of foundries in Europe and Asia. Every specialist dealing with foundry processes and their impact on environmental pollution must have encountered in their professional careers numerous situations in which the theory of environmental protection confronts the stark reality. The discrepancy between theory and practice can particularly be noticed in foundry engineering in developing countries where the contrasts between different countries and casting plants are extremely striking. The comparison of working conditions in European and Asian foundries provides a vast scope for further observations and analyses. Environmental protection seems not only a concern of manufacturers of castings, but also of their customers whose opinion exerts a significant influence on both the acceptability of working conditions and on the approach to environmental pollution adopted in metal casting industry. The article presents a number of examples of various outlooks on environmental issues in foundries manufacturing a wide range of cast steel and cast iron castings, where different technologies and production processes are applied.
Źródło:
Archives of Foundry Engineering; 2017, 17, 2; 202-206
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Membrane processes innovation in environmental protection : review
Innowacyjne procesy membranowe w ochronie środowiska : przegląd
Autorzy:
Konieczny, Krystyna H.
Wszelaka-Rylik, Małgorzata
Macherzyński, Bartłomiej
Powiązania:
https://bibliotekanauki.pl/articles/205433.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
membrane techniques
microfiltration
ultrafiltration
nanofiltration
reverse osmosis
techniki membranowe
mikrofiltracja
ultrafiltracja
nanofiltracja
odwrócona osmoza
Opis:
The partial solution for the growing contamination of the environment is the implementation of new technologies. The most of the currently operated systems for surface and groundwaters treatment as well as for wastewater treatment characterize with complex technological arrangements based on a number of unit operations. In water-wastewater management membrane processes are more often applied, especially those in which the difference of pressure at both membrane sites is used as a driving force. As an example of such application is the use of nanofiltration for groundwaters treatment at Water Treatment Plant Zawada near Dębica or the treatment of municipal landfill leachate and industrial wastewater at Eko Dolina Waste Utilization Plant in Łężyce near Gdynia (reverse osmosis unit capacity of 120 m3/d). Municipal wastewater treatment based on membrane technologies has already been implemented at domestic wastewater treatment plant. It is especially profitable, when the load of contaminant present in a wastewater varies within a year. In the case of membrane systems use, this issue can be neglected. As an example of membrane based system may serve WWTP in Rowy n/Ustka started up in 2013 and modernized in 2017. The latest trends and developments of selected suppliers of membrane systems are also presented.
Częściowym rozwiązaniem wzrastającego zanieczyszczenia środowiska wodnego jest wdrażanie nowych technologii. Większość współczesnych dużych systemów uzdatniania wód powierzchniowych i podziemnych oraz oczyszczania ścieków charakteryzuje się bardzo złożonymi układami technologicznymi zakładającymi sekwencję wielu procesów. W gospodarce wodno-ściekowej w coraz to większym zakresie wykorzystywane są procesy membranowe, przede wszystkim te, których siłą napędową jest różnica ciśnień po obu stronach membrany. Przykładem jest między innymi zastosowanie nanofiltracji do uzdatniania wód głębinowych w SUW Zawada k. Dębicy oraz oczyszczanie odcieków z wysypisk odpadów stałych i ścieków przemysłowych technologią membranową w zakładzie Unieszkodliwiania Odpadów Eko Dolina w Łężycach k/Gdyni (wydajność RO 120 m3/dobę). Oczyszczanie ścieków komunalnych w oparciu o technologie membranowe zostało już wdrożone w krajowych oczyszczalniach ścieków. Jest to szczególnie opłacalne, gdy ładunek zanieczyszczeń obecnych w ściekach waha się w ciągu roku. W przypadku zastosowania systemów membranowych, problem ten można pominąć. Przykładem wdrożenia systemu membranowego może być WWTP w Rowach k/Ustki, którą zbudowano w 2013 r. i zmodernizowano w 2017 r. Ponadto przedstawiono najnowsze rozwiązania oraz trendy rozwoju w niektórych firmach realizujących technologie membranowe u klientów.
Źródło:
Archives of Environmental Protection; 2019, 45, 4; 20-29
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The small Wastewater Treatment Plants – Hydrobotanical Systems in Environmental Protection
Małe oczyszczalnie ścieków - systemy hydrobotaniczne w ochronie środowiska
Autorzy:
Pawęska, K.
Kuczewski, K.
Powiązania:
https://bibliotekanauki.pl/articles/204905.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mała oczyszczalnia ścieków
ochrona środowiska
system hydrobotaniczny
constructed wetlands
stężenie zanieczyszczeń
hydrobotanical wastewater treatment plants
concentration of pollutants
Opis:
The paper presents results of research concerning operating of fi ve small wastewater treatment plants working in two different technologies: hydrobotanical wastewater treatment plant and constructed wetland. Each object was designed for the treatment of domestic sewage after preliminary mechanical treatment in a septic tank. Hydrobotanical wastewater treatment plants and one of constructed wetland beds were built for treating sewage produced in educational institutions and resort. In the article attention is paid to possibility of exceeding the maximum allowable concentration of pollutants for three main indicators of pollution: BOD5, COD, and total suspension. The reduction of these indices is required by the Regulation of the Minister of Environment [14] for wastewater treatment plants with PE < 2000. In addition, the paper presents the effects of wastewater treatment to reduce biogens. The best quality of outfl ow was reached by outfl ows from constructed wetland treatment plants. None of the observed objects fulfi lled the requirements in terms of allowable concentrations for total suspension. The most effective were objects operating in technology of "constructed wetland".
W pracy przedstawiono wyniki badań dotyczące pracy małych pięciu oczyszczalni ścieków pracujących w dwóch technologiach: oczyszczalnie hydrobotaniczne oraz constructed wetland. Każdy z obiektów przeznaczony był do oczyszczania ścieków bytowych po wstępnym mechanicznym oczyszczaniu w osadniku gnilnym. Oczyszczalnie hydrobotaniczne oraz jeden z obiektów constructed wetland wybudowano w celu oczyszczania ścieków pochodzących z placówek oświatowych, pozostałe złoże gruntowo-trzcinowe oczyszczało ścieki z ośrodka wypoczynkowego. W artykule zwrócono szczególną uwagę na możliwość przekroczenia maksymalnego dopuszczalnego stężenia zanieczyszczeń wg obowiązujących w Polsce przepisów, dla trzech podstawowych wskaźników zanieczyszczeń: BZT5, ChZT oraz zawiesiny ogólnej. Redukcja tych indeksów wymagana jest Rozporządzeniem MŚ [14] dla oczyszczalni o RLM < 2000. Ponadto w pracy przedstawiono również efekty oczyszczania na rzecz redukcji biogenów. Najlepszą jakością charakteryzowały się odpływy z oczyszczalni pracujących w technologii constructed wetland. Natomiast żaden z obserwowanych obiektów nie spełniał wymogów pod względem dopuszczalnych stężeń dla zawiesiny ogólnej. Najskuteczniej oczyszczały ścieki obiekty pracujące w technologii "constructed wetland".
Źródło:
Archives of Environmental Protection; 2013, 39, 1; 3-16
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regionalni dyrektorzy ochrony środowiska jako podmioty współkształtujące przestrzeń
Regional Directors for Environmental Protection as Subjects of Spatial Management
Autorzy:
Mickiewicz, P.
Nowak, M. J.
Powiązania:
https://bibliotekanauki.pl/articles/2031535.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
decisions on building conditions and land management
local development
space
Opis:
The objectives important from the point of view of environmental protection can be implemented in different ways, using different management tools. Therefore, it should be noted that it fully seems reasonable to assume that some of the important goals in terms of environmental protection will be achieved through spatial management tools. The main objectives of this article are to determine how the spatial management system at local and regional level in Poland is carried out in relation to the environmental protection as well as to assess the current state of affairs in this area and to propose some changes. Particular attention was paid to the direct instrument of spatial management, which is the local development plan.
Źródło:
Biuletyn Komitetu Przestrzennego Zagospodarowania Kraju PAN; 2015, 257-258; 222-232
0079-3493
Pojawia się w:
Biuletyn Komitetu Przestrzennego Zagospodarowania Kraju PAN
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investment Casting or Forging in the Aspect of Environmental Protection
Odlew precyzyjny czy odkuwka matrycowa w aspekcie ochrony środowiska
Autorzy:
Haratym, R.
Lewiński, J.
Biernacki, R.
Powiązania:
https://bibliotekanauki.pl/articles/382330.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
investment casting
forging
environment protection
odlew precyzyjny
odkuwka matrycowa
ochrona środowiska
Opis:
The article compares the energy intensity of ductile iron precision castings manufacturing process with the 0.5% C steel locking mechanism element made with forging die. During the analysis variations of manufacturing processes were taken into account and also additional comparison of energy intensity connected with the machining of the steel blank was made. The influence of the manufacturing processes on the environment was evaluated.
W artykule porównano energochłonność wytwarzania odlewu precyzyjnego wykonanego z żeliwa sferoidalnego z odkuwką matrycową dla widełek mechanizmu blokującego ze staliwa 0,5 % C. Uwzględniono różne warianty procesów wytwarzania oraz porównano je z energochłonnością wyrobu otrzymanego z półfabrykatu hutniczego otrzymanego metodą obróbki skrawaniem. Oceniono wpływ procesów wytwarzania na środowisko.
Źródło:
Archives of Foundry Engineering; 2014, 14, 2 spec.; 29-32
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of the Chemical Composition of Selected Waste Materials from the Production of Copper on the Final Environmental Assessment
Autorzy:
Bydałek, A. W.
Biernat, S.
Schlafka, P.
Holtzer, M.
Wołczyński, W.
Bydałek, F.
Powiązania:
https://bibliotekanauki.pl/articles/353124.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
environmental protection
waste
recycling
KGHM
slag-prop
Opis:
This article presents qualitative and quantitative analysis of the waste produced by KGHM Polska Miedź. The waste has been analyzed according to its chemical composition and balanced in order to be reused and recycled. Special attention has been paid to mining industries producing the biggest amount of waste and ore enrichment businesses generating waste, which isn’t reused nowadays. Laboratory reseach has been conducted on floatation waste, different kinds of slags, waste gases and water slag extracts. Attention has been drawn to the possibility of using a computer program SLAG - PROP for analyzing physicochemical features, technological features and the refining of the acquired waste. Consequently, the further way of utilization of waste has been shown. From this point of view, analyses of DTA and TG slags in an oxide coating seem especially interesting. Having a particular composition they can be successfully utillised in the refining processes of copper pyrometallyrgy.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 4; 2135-2140
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the Possibility of Using Reclaimed Materials for Making Cores by the Blowing Method
Autorzy:
Dańko, R.
Dańko, J.
Skrzyński, M.
Powiązania:
https://bibliotekanauki.pl/articles/382266.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
moulding sand
reclamation
environmental protection
piasek formierski
regeneracja
ochrona środowiska
Opis:
The cumulative results of investigations of the possibility of using the reclaimed materials after the mechanical, thermal or mechanical-thermal reclamation for making cores by means of the blowing method in the alkaline CO2 technology, are presented in the paper. Three kinds of spent sands: with furfuryl resin, bentonite and alkaline phenolic resin, obtained from the foundry, were subjected to three kinds of reclamation: mechanical, thermal and combined mechanical-thermal, applying for this aim adequate experimental devices. The obtained reclaims were assessed with regard to the degree of the matrix liberation from the determined binding material. Reclaims of moulding sands with binders of the form of resin were assessed with regard to ignition loss values and pH reaction, while reclaims of moulding sands with bentonite with regard to the residual clay content and pH value. In all cases the results of the performed sieve analyses were estimated and the average characteristic diameter dl was determined. The reclaimed matrix was applied as a full substitute of the fresh high-silica sand in typical procedures of preparing core sands used for making shaped samples for bending strength investigations, Rgu.
Źródło:
Archives of Foundry Engineering; 2017, 17, 1; 21-26
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigations of nitric oxides reduction in industrial-heating boilers with the use of the steam injection method
Autorzy:
Janta-Lipińska, Sylwia
Shkarovskiy, Alexander
Powiązania:
https://bibliotekanauki.pl/articles/205255.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
environmental protection
nitric oxide
emission level
industrial gas boilers
emission reductions
Opis:
This article presents results of research concerning the possibility of reducing the level of toxic nitric oxides (NOx) emission to the atmosphere. The research has been conducted on DKVR 20-13, PTVM-50 and DE 25-14 gas boilers. The complex character of this issue requires individual consideration regarding each boiler configuration. Each case requires consideration of characteristics and details of all elements constituting the boiler-furnace unit. The main problem was to establish the reference level to which the reduction of nitric oxides occurs. The actual maximum emission of nitric oxides was assumed as this level. It was verified with the maximum allowable emission of nitric oxides for each boiler. Three levels of the potential influence of emission on the atmosphere have been taken into account. This experimental research allowed for proposing an effective method, which led to reducing nitric oxides emission by around 30%.
Źródło:
Archives of Environmental Protection; 2020, 46, 2; 100-107
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phase Composition of Urban Soils by X-Ray Diffraction and Mössbauer Spectroscopy Analysis
Autorzy:
Kierlik, P.
Hanc-Kuczkowska, A.
Męczyński, R.
Matuła, I.
Dercz, G.
Powiązania:
https://bibliotekanauki.pl/articles/353120.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Mössbauer spectroscopy
X-ray diffraction
environmental protection
qualitative phase analysis
topsoil
Opis:
The main purpose of this study was to identify the mineral composition of soil sample taken from the upper layer of topsoil. High absorption of chemical substance is a characteristic for humus-organic layer of topsoil. The source of those substance could be a pollutant emitted to the atmosphere by human activity. The research area includes Upper Silesia region, which is the most industrial region of Poland. In the present study, the phase composition of the top soil separates were analyzed by using X-raydiffraction and Mössbauer spectroscopy. X-ray diffraction analysis revealed the presence of seven mineral phases in the material magnetic separated by lower current (quartz, illite, kaolinite, Fe3+ oxides, hematite, magnetite and pyrite). In case of higher current were identified four phases (quartz, muscovite, kaolinite and K0.94 Na0.06 (AlSi3 O8 )). Mössbauer spectroscopy was used for an extensive analysis of iron-containing phases (pyrrhotite, magnetite, aluminosilicate oxides with Fe3+ and kaolinite/Fe2+ silicate).
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 3; 1029-1032
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Used Furan Sand Reclamation in REGMAS Vibratory Unit
Autorzy:
Dańko, J.
Dańko, R.
Skrzyński, M.
Powiązania:
https://bibliotekanauki.pl/articles/381674.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
used sand
mechanical reclamation
environmental protection
masa zużyta
regeneracja mechaniczna
ochrona środowiska
Opis:
The paper, especially dealt with problems of reclamation of used furan sand, carried out in new, vibratory sand reclamation unit REGMAS developed by researches from AGH-University of Science and Technology, Faculty of Foundry Engineering in Cracow (Poland). Functional characteristics of reclamation unit as well as the results of reclamation of used sand with furfuryl resin are discussed in the paper. The quality of reclaim was tested by means of the LOI and pH value, dust content in the reclaim and at least by the the quality of the castings produced in moulds prepared with the use of reclaimed matrix.
Źródło:
Archives of Foundry Engineering; 2015, 15, 3; 25-28
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reclamation of mixtures of spent sands of inorganic and organic type
Autorzy:
Skrzyński, M.
Dańko, R.
Kamińska, J.
Powiązania:
https://bibliotekanauki.pl/articles/381461.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
reclamation
foundry sand
moulding sand
environmental protection
regeneracja
masa formierska
ochrona środowiska
Opis:
The results of investigations of the reclamation of spent moulding and core sands, originated from one of the Polish foundry plants, are presented in the paper. Four mixtures consisting of two types of spent sands (spent moulding sand and spent core sand) were subjected to the regeneration process. Each tested mixture consisted of an inorganic type spent moulding sand and of an organic type spent core sand. Proportions of mutual fractions of spent moulding and core sands in mixtures was 70%-30% and was representative for the waste sands from the foundry, from which these sands originated.
Źródło:
Archives of Foundry Engineering; 2013, 13, 4; 93-96
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of the mild hybrid system in vehicles with regard to exhaust emissions and their environmental impact
Autorzy:
Pielecha, Jacek
Gis, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/1833672.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
transport
hybrid system
exhaust emissions
environmental protection
system hybrydowy
emisje spalin
ochrona środowiska
Opis:
Pollution of the environment is a global phenomenon. The lack of specific actions to reduce environmental pollution can lead to an increase in the average temperature of the Earth's air and to global consequences. One of the important sectors affecting environmental pollution is transport, including road transport. Currently, intensive legislative and construction works are underway to reduce the emission of harmful substances from road transport. Meeting the requirements imposed by the European Union makes it necessary not only to make structural changes to combustion units or exhaust aftertreatment systems, but also to use additional systems supporting the operation of the main engine. This group includes, among others, Mild Hybrid propulsion systems and classic hybrid systems. Their application is to affect not only the possibility of reducing the swept volume of a combustion unit, while maintaining its operational parameters, but also to reduce the emission of harmful substances of exhaust gases. The conducted research and its analysis indicate the legitimacy of using a newer vehicle equipped with a modern propulsion system, i.e. Mild Hybrid, in real conditions. In the case of toxic emissions of exhaust gases, a difference in emissions of individual components is noticeable, depending on the chosen driving mode. However, it is worth mentioning the difference in the emission of nitrogen oxides and the number of particulate matters. Their emission is reduced in relation to a vehicle using a classic powertrain. The use of a modern propulsion system also improves reliability. The tested Mild Hybrid vehicle does not use a conventional alternator and starter. This eliminates the elements that are prone to damage in prolonged operation. This is an unquestionable advantage when taking into account the operation of the vehicle.
Źródło:
Archives of Transport; 2020, 55, 3; 41-50
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Primary Used Sand Reclamation Process Efficiency
Autorzy:
Skrzyński, M.
Dańko, R.
Powiązania:
https://bibliotekanauki.pl/articles/380765.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
spent foundry sands
mechanical reclamation
environmental protection
zużyta masa formierska
rekultywacja
ochrona środowiska
Opis:
The results of the efficiency of the primary reclamation process as well as the influence of the used sand temperature and other process parameters on it are presented in this paper. A separate stand realized on a reduced scale was built, which is an analogous process of the primary reclamation treatment of spent foundry sands. The used sands were introduced to the crushing process in an agglomerated form in the way typically used in industrial devices. The primary reclamation process was realized on a set of four horizontal sieves with decreasing mesh clearances while maintaining their geometrical dimensions applied in the Regmas industrial device. The model system consists of a vibratory drive mounted on the table, allowing us to control the supply frequency of the vibratory motors within a range of 40-60 Hz as well as the computer system for measuring the vibration parameters and drive power. The used sand on the quartz matrix with the KALTHARZ U404 resin and 100T3 hardener was used in our investigations. The used sand was prepared under the following conditions: cubic-shaped elements made of the applied furan sand was compacted by vibrations then hardened and subjected to heating under controlled conditions (as a “simulation” of the overheating process taking place in the mold after pouring). Time functions of the crushing and sieving process in dependence of the overheating degree of the reference sand samples (100°, 200°, and 300°C) were investigated at various table vibration frequencies and feed loads of the sieve set. The relative index of the crushing ability was determined.
Źródło:
Archives of Foundry Engineering; 2019, 1; 29-34
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the Harmfulness of the Slags from Copper Smelting Processes, in an Aspect of their Management
Autorzy:
Holtzer, M.
Bydałek, A.
Wołczyński, W.
Kmita, A.
Powiązania:
https://bibliotekanauki.pl/articles/382572.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative technology
slag copper
leaching
environmental protection
technologia innowacyjna
żużel
ługowanie
ochrona środowiska
Opis:
There are two methods to produce primary copper: hydrometallurgical and pyrometallurgical. Copper concentrates, from which copper matte is melted, constitute the charge at melting primary copper in the pyrometallurgical process. This process consists of a few stages, of which the basic ones are roasting and smelting. Smelting process may be bath and flash. Slag from copper production, on the end of process contain less 0,8%. It is treat as a waste or used other field, but only in a few friction. The slag amount for waste management or storage equaled 11 741 – 16 011 million tons in 2011. This is a serious ecological problem. The following slags were investigated: slag originated from the primary copper production process in the flash furnace of the Outtokumpuja Company in HM Głogów 2 (Sample S2): the same slag after the copper removal performed according the up to now technology (Sample S1): slag originated from the primary copper production process in the flash furnace of the Outtokumpuja Company in HM Głogów 2, after the copper removal performed according the new technology (Sample S3). In practice, all tested slags satisfy the allowance criteria of storing on the dumping grounds of wastes other than hazardous and neutral.
Źródło:
Archives of Foundry Engineering; 2017, 17, 3; 191-195
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł

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