Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Slavomir Hredzak"'
Autor:
Anton Zubrik, Marek Matik, Michal Lovás, Zuzana Danková, Mária Kaňuchová, Slavomír Hredzák, Jaroslav Briančin, Vladimír Šepelák
Publikováno v:
Nanomaterials, Vol 9, Iss 1, p 100 (2019)
The continued decrease in water quality requires new advances in the treatment of wastewater, including the preparation of novel, effective, environmentally friendly, and affordable sorbents of toxic pollutants. We introduce a simple non-conventional
Externí odkaz:
https://doaj.org/article/5ce851a0c79a42dcbe8064779cddcd27
Publikováno v:
Acta Montanistica Slovaca, Vol 17, Iss 1, Pp 81-84 (2012)
The materials based on iron oxides are widely used for toxic elements removal. Magnetite nanoparticles are good sorbentof arsenic from water, but their practical use is quite limited. The solid/liquid separation of material in the nano-scale range is
Externí odkaz:
https://doaj.org/article/a8702cddf31e4b1ebf5a64e72f4c8aee
Publikováno v:
Acta Montanistica Slovaca, Vol 15, Iss 3, Pp 204-211 (2010)
The basic oxygen furnace (BOF) dust is a hazardous metallurgical waste generated in the collection of particulate material duringsteel making processes. The occurrence and recovery of metallurgical wastes from steelmaking and iron making processes be
Externí odkaz:
https://doaj.org/article/670492f7e0a949d69fb5db3501dd673d
Publikováno v:
Acta Montanistica Slovaca, Vol 11, Iss special issue 2, Pp 300-303 (2006)
A preparation of low-ash coal products was performed with the aim to obtain asuitable charge for the extraction following processes of organic substances. Thus, for this purpose, the coal feeds from two collieries, namely Záhorie and Nováky were wa
Externí odkaz:
https://doaj.org/article/cd6a8154159a47a58479b2191cd8c735
Autor:
Slavomír Hredzák, Michal Lovás, Silvia Čuvanová, Ľudmila Turčániová, Mária Skybová, Anton Zubrik
Publikováno v:
Acta Montanistica Slovaca, Vol 10, Iss special issue 1, Pp 77-81 (2005)
The paper presents the study on the extraction of organic compounds (low-molecular weight - diterpenes, high-molecular weight - fullerenes and humic acids) from Handlová brown coal and pyrolytic soot. It was confirmed that the coal extract with a di
Externí odkaz:
https://doaj.org/article/af1376934964426c8078685458495d6a
Publikováno v:
Acta Montanistica Slovaca, Vol 10, Iss special issue 1, Pp 60-66 (2005)
The paper deals with an influence of thermal pretreatment on the crushability of quartz. The sample of lump quartz from the deposit of Švedlár (Eastern Slovakia) was subjected to primary crushing in the jaw crusher PS D-160 with a discharge of 10
Externí odkaz:
https://doaj.org/article/c52a642833614fd18dd6471350d9f910
Autor:
Marek Matik, Miroslava Václavíková, Michal Lovás, Štefan Jakabský, Slavomír Hredzák, Michal Neubauer
Publikováno v:
Acta Montanistica Slovaca, Vol 9, Iss 4, Pp 423-427 (2004)
The paper deals with the grinding of secondary serpentine material from the Dobiná´s heap in a ball ceramic mill. The raw material was pre-sieved to prepare fraction of +250 1,000 µm that was fed to the mill. During batch experiment an amount of o
Externí odkaz:
https://doaj.org/article/3b250cd3f54548cda07fdefadbab489f
Autor:
Dana Gešperová, Marek Matik, Slavomír Hredzák, Panagiotis Misaelides, George Gallios, Miroslava Václavíková
Publikováno v:
Acta Montanistica Slovaca, Vol 9, Iss 4, Pp 414-417 (2004)
This study presents the synthesis and the characterization of the structural and sorption properties of magnetic nanoscale particles, which play a significant role in wastewater treatment technologies.Aqueous suspensions of magnetic particles were pr
Externí odkaz:
https://doaj.org/article/8283af4623704811b883bdf4e358cab8
Publikováno v:
Acta Montanistica Slovaca, Vol 9, Iss 4, Pp 418-422 (2004)
Ion-exchange properties of cations from lattice and ions from solutions are characteristic for zeolites. Zeolites as sorbents are used in many branches of industry. Ion-exchange reactions of cations on zeolites have been a theme of many works. With t
Externí odkaz:
https://doaj.org/article/0890eb7b14b44e0e952ae90a96f033a7
Autor:
Vladimír Čablík, Michal Lovas, Dana Gesperova, Slavomir Hredzak, Silvia Dolinska, Ingrid Znamenackova
Rare earth elements (REEs) extraction from wastes and/or by-products is alternative possibility of their winning. The occurrence of REEs, namely 50.1 ppm of La, 100.1 ppm of Ce and 44.3 ppm of Nd was confirmed in solid fly ash samples from the coal f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf08c364d55ae096890b224671bdc26a
http://hdl.handle.net/10084/142874
http://hdl.handle.net/10084/142874
