Search results for: SEPARATION BARRIER

A Novel Multicast Architecture of Programmable Networks

Publication

- Year 2015

In the paper a multicast architecture for programmable networks based on separation of group management and network control tasks is proposed. Thanks to this separation, services which want to make use of multicast communications no longer have to implement low-level network functionalities and their operation is greatly simplified. Abstracting service’s view of the network into a fully connected cloud enables us to transparently...

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On the influence of the acceleration recording time on the calculation of impact severity indexes

Publication

- MATEC Web of Conferences - Year 2018

The paper concerns with the analysis of normative requirements pertaining to experimental setup of a crash test and its numerical modelling. An overview of parameters describing the collision of a vehicle with a road restraining system is presented. A short description of a concrete road safety barrier is presented. A brief description of numerical modelling procedures for crash tests is given as well. The parametric influence...

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The effect of road restraint systems on the level of road safety - Polish experience

Publication

- Year 2018

Roadside accidents happen when a vehicle runs off the road. The majority of these accidents are very severe because leaving the road is usually followed by hitting a solid obstacle (tree, pole, support, culvert front wall, barrier). Roadsides are some of the most important issues of road safety. They have been studied for years to identify roadside hazards and the effectiveness of road safety measures such as restraint systems....

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Evaluation of the Effectiveness of Methods for Delimitation of the Boundaries of Registered Parcels in the Process of Modernization of Land and Building Registration

Publication

P. Wysocki
M. Buśko

- Year 2018

In the article, a comparative analysis of two methods for delimitation of the boundaries of registered parcels was carried out: the method of direct measurement in the field and the photogrammetric method. One of the analyzed factors was the attendance of parcels’ owners during the development of boundary recognition agreements. Research has shown that in this aspect the method of direct measurement...

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Failures and a concept of corrosion protection system for spiral classifiers at KGHM Polska Miedź S.A. Ore Concentration Plant

Publication

M. Czekajło
K. Żakowski

- ENGINEERING FAILURE ANALYSIS - Year 2020

The Ore Concentration Plant, where the process of flotation is carried out as well as the final production of copper concentrate, plays a key role in the entire production line of KGHM Polska Miedź S.A. Majority of operations related to the run-of-mine preparation to copper flotation enrichment are carried out in a water environment. The maintaining of production process continuity requires to pursue minimisation of many production...

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Badania nad rozdzielaniem grupowym i analityką składu grupowego olejów bazowych i smarowych, zwłaszcza o szerokim zakresie polarności składników

Publication

P. K. Dyguła

- Year 2023

Rozprawa to studia i badania nad rozdzielaniem i analityką składu grupowego olejów bazowych i smarowych o szerokim zakresie polarności składników. Studium literatury wykazało brak metodyk badania udziału frakcji naftowej i roślinnej w takich olejach oraz nieadekwatność w tym celu HPLC. Pierwsza część pracy to badania nad opracowaniem wielokrotnie zastosowanej w praktyce terenowej metodyki i wyposażenia dla zastosowania fluorescencji...

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Asfalteny jako fazy stacjonarne w chromatografii cieczowej w normalnych układach faz

Publication

D. Wojewódka

- Year 2023

Rozprawa doktorska dotyczy zbadania możliwości wykorzystania asfaltenów wydzielonych z: próżniowej pozostałości ropy naftowej, produktów jej utleniania i naturalnego asfaltu jako fazy stacjonarnej na powierzchni sorpcyjnej żelu krzemionkowego do rozdzielania nisko polarnych organicznych związków chemicznych w warunkach chromatografii cieczowej w normalnych układach faz, w odniesieniu do żelu krzemionkowego jako nośnika. Opracowano...

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Application and optimization of headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography - flame-ionization detector (GC-FID) to determine products of the petroleum industry in aqueous samples

Publication

M. Tankiewicz
C. Morrison
M. Biziuk

- MICROCHEMICAL JOURNAL - Year 2013

A simple and solvent-free analytical method has been optimized for the determination of hydrocarbons (C6 - C20) from products of the petroleum industry in aqueous samples. Extraction and analysis was carried out using headspace solid-phase microextraction (HS-SPME) and gas chromatography coupled with flame-ionization detector (GC-FID). A ZB-5 capillary column (30 m × 0.25 mm inner diameter, 0.25 µm film thickness) was used for...

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A novel methodology for the enantiomeric resolution of methamphetamine, its precursors and intermediates by GC-MS

Publication

- Year 2013

Impurity profiling and classification of abused drugs using chiral analytical techniques is of particular interest and importance because of the additional information obtained from this approach. When these methods are applied to the synthesis of illicitly used substances, they can supply valuable information about the conditions/chemicals used in the synthesis. In this study, simultaneous chiral separation of methylamphetamine,...

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“Dilute & Shoot” approach for rapid determination of trace amounts of nicotine in zero-level e-liquids by reversed phase liquid chromatography and hydrophilic interactions liquid chromatography coupled with tandem mass spectrometry-electrospray ionization

Publication

- JOURNAL OF CHROMATOGRAPHY A - Year 2013

Two analytical procedures are proposed where HILIC and RPLC techniques are coupled with tandem mass spectrometry detection for rapid determination of trace amounts of nicotine in zero-level liquids for electronic cigarettes. Samples are prepared on the basis of the approach “dilute & shoot” which makes this important step quick and not complicated. The chromatographic separation was carried out on a Zorbax XDB column (RPLC method)...

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Process Control of Biogas Purification Using Electronic Nose

Publication

- CHEMICAL ENGINEERING TRANSACTIONS - Year 2020

Nowadays, biogas produced from landfills and wastewater treatment plants or lignocellulosic biomass is important sustainable and affordable source of energy. Impurities from biogas stream can cause a serious odor problem, especially for residents of areas immediately adjacent to production plants. Therefore, biogas pre-treatment is necessary to protect engines that convert biogas into energy and in order to increase the specific...

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Application of the IMO standard manoeuvres procedure for pod-driven ships

Publication

M. Reichel

- JOURNAL OF MARINE SCIENCE AND TECHNOLOGY - Year 2019

International Maritime Organisation (IMO) in the resolution MSC.137(76) Standards for Ship manoeuvrability presents the manoeuvring criteria that has to be satisfied by majority of seagoing ships. Together with the criteria, procedures for carrying out the manoeuvring tests are also presented. They however do not correspond directly to ships with non-conventional steering-propulsion devices, like pod drives. IMO is aware of this...

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Defected Ag/Cu-MOF as a modifier of polyethersulfone membranes for enhancing permeability, antifouling properties and heavy metal and dye pollutant removal

Publication

V. Vatanpour
R. Ardic
B. Esenli
B. Eryildiz-Yesir
P. Yaqubnezhad Pazoki
A. Jarahiyan
F. Matloubi Moghaddam
R. Castro Munoz
I. Koyuncu

- SEPARATION AND PURIFICATION TECHNOLOGY - Year 2024

In this study, a novel bimetallic metal-organic framework (MOF) i.e. Ag/Cu-MOF was synthesized using a solvothermal method and later incorporated at different concentrations (0.1–2 wt%) using a phase inversion method for modification and antifouling property improvement of polyethersulfone (PES) membranes. The resulting Ag/Cu-MOF characteristics were investigated using different techniques, such as FTIR, XRD, FE-SEM and EDX. The...

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Pharmaceuticals wastewater treatment via different advanced oxidation processes: Reaction mechanism, operational factors, toxicities, and cost evaluation – A review

Publication

J. Iqbal
N. S. Shah
J. Ali
M. Naushad
G. Boczkaj
F. Jamil
S. Khan
L. Li
B. Murtaza
C. Han

- SEPARATION AND PURIFICATION TECHNOLOGY - Year 2024

Pharmaceuticals comprises different drugs used for treating different infections in human being and animals. The huge quantities of pharmaceuticals used are found to discharge into different water resources and cause different health and environmental problems. The continuous and large-scale discharge of pharmaceuticals increases their persistency which can consequently make them more toxic. The different advanced oxidation processes...

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A review on carbon storage via mineral carbonation: Bibliometric analysis, research advances, challenge, and perspectives

Publication

X. Lin
X. Li
H. Liu
G. Boczkaj
Y. Cao
C. Wang

- SEPARATION AND PURIFICATION TECHNOLOGY - Year 2024

Mineral carbonation as a way of carbon storage has received a particular attention in the reduction of carbon dioxide (CO2) emission . This work gives a comprehensive description of the research trends and hotspots in the field of mineral carbonation for carbon storage based on bibliometric analysis. A total of 1507 articles were collected from the Web of Science database from 2010 to 2022 and analyzed in details, using a Citepace...

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Facilitated water transport in composite reduced graphene oxide pervaporation membranes for ethanol upgrading

Publication

M. Plata Gryl
G. Boczkaj
A. Policicchio
A. Figoli
F. Galiano
R. Castro Munoz

- SEPARATION AND PURIFICATION TECHNOLOGY - Year 2024

High purity ethanol is one of the most sought-after renewable energy sources. However, standard production methods yield ethanol of insufficient quality. Membrane processes such as pervaporation are recognized as a viable method for upgrading ethanol. Their performance and selectivity depend solely on membrane employed. Hydrophilic polyvinyl alcohol (PVA) membranes are used industrially for this purpose, but there is a trade-off...

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Thermodynamic study of new antiepileptic compounds by combining chromatography on the phosphatidylcholine biomimetic stationary phase and differential scanning calorimetry

Publication

J. Flieger
H. Trębacz
M. Pizoń
A. Plazińska
W. Plaziński
A. Kowalska
A. Szczęsna
T. Plech

- JOURNAL OF SEPARATION SCIENCE - Year 2019

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Comparison of mouse plasma and brain tissue homogenate sample pretreatment methods prior to high-performance liquid chromatography for a new 1,2,4-triazole derivative with anticonvulsant activity

Publication

J. Flieger
A. Kowalska
M. Pizoń
T. Plech
J. Łuszczki
A. Kowalska-Kępczyńska

- JOURNAL OF SEPARATION SCIENCE - Year 2015

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High-performance liquid chromatography thermodynamic study of new potential antiepileptic compounds on a cholesterol column using isocratic elution with methanol/water and acetonitrile/water eluent systems

Publication

J. Flieger
H. Trębacz
M. Pizoń
A. Kowalska
A. Szczęsna
T. Plech
A. Kowalska-Kępczyńska

- JOURNAL OF SEPARATION SCIENCE - Year 2017

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Solid-phase extraction using octadecyl-bonded silica modified with photosynthetic pigments from Spinacia oleracea L. for the preconcentration of lead(II) ions from aqueous samples

Publication

E. Blicharska
M. Tatarczak-Michalewska
A. Plazińska
W. Plaziński
A. Kowalska
A. Madejska
M. Szymańska-Chargot
A. Sroka-Bartnicka
J. Flieger
A. Kowalska-Kępczyńska

- JOURNAL OF SEPARATION SCIENCE - Year 2018

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Effect of process parameters on fouling and stability of MF/UF TiO2 membranes in a photocatalytic membrane reactor

Publication

S. Mozia
K. Szymański
B. Michalkiewicz
B. A. Tryba
M. Toyoda
A. Morawski

- SEPARATION AND PURIFICATION TECHNOLOGY - Year 2015

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Facilitated transport of Zn(II), Cd(II) and Pb(II) ions trough polymer inclusion membranes with calix[4]-crown-6 derivaties

Publication

- SEPARATION AND PURIFICATION TECHNOLOGY - Year 2007

Badano transport mieszaniny równomolowych ilości jonów Zn(II), Cd(II) i Pb(II)z wodnej fazy azotanowej (cMe=0,001M) przez polimerowe membrany inkluzyjne(PIM) zawierające pochodne kaliks[4]korony-6 jako nośniki jonów. Badany był wpływ różnych podstawników na wydajność procesu. Selektywność transportu przez membrany zawierające jonofory 4 i 5 malała w kolejności Pb(II), Zn(II), Cd(II), natomiast z jonoforem 3 Pb(II), Zn(II)Cd(II)....

Photodegradation of phenol by UV/TiO2 and Vis/N,C-TiO2 processes: Comparative mechanistic and kinetic studies

Publication

- SEPARATION AND PURIFICATION TECHNOLOGY - Year 2009

Porównano drogę fotodegradacji w dwóch systemach badawczych: UV/TiO2 i Vis/N,C-TiO2. Zbadano efektywność degradacji fenolu, powstające produkty pośrednie oraz generowanie rodników hydoksylowych w przygotowanych układach badawczych. Wyniki badań wykazały porównywalne efektywności degradacji fenolu w zawiesinach: domieszkowany TiO2/Vis i TiO2 P-25/UV. Uzyskane wyniki wskazują również na odmienne drogi degradacji zanieczyszczeń w...

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The lipophilicity indices of flavonoids estimated by reversed-phase liquid chromatography using different computation methods

Publication

R. D. Briciu
A. Kot-Wasik
J. Namieśnik
C. Sarbu

- JOURNAL OF SEPARATION SCIENCE - Year 2009

Do oceny właściwości chromatograficznych wybranych flawonoidów zastosowano wyskokosprawną chromatografię cieczową z odwróconym układem faz i kolumnami chromatograficznymi typu C-8 i C-18.Lipofilowość wyrażono za pomocą różnych deskryptów lipofilowości.

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The Influence of Alkyl Chain Length and Steric Effect on the Stability Constants and Extractability of Co(II) Complexes with 1-Alkyl-2-Methylimidazoles

Publication

E. Radzyminska-Lenarcik
K. Witt

- SEPARATION SCIENCE AND TECHNOLOGY - Year 2015

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Solvent extraction of copper ions by 3-substituted derivatives of β-diketones

Publication

E. Radzyminska-Lenarcik
K. Witt

- SEPARATION SCIENCE AND TECHNOLOGY - Year 2018

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Salinity and pH as factors affecting the passive sampling and extraction of pharmaceuticals from water

Publication

H. Lis
P. Stepnowski
M. Caban

- Journal of Separation Science - Year 2019

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Complexing and Chelating Agents Immobilized on Silica Gel and Related Materials and Their Application for Sorption of Inorganic Species

Publication

J. Biernat
P. Konieczka
B. Tarbet
J. Bradshaw
R. Izatt

- Separation and Purification Methods - Year 1994

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Static and dynamic superheated water extraction of essential oil components fromThymus vulgarisL.

Publication

A. Dawidowicz
E. Rado
D. WIANOWSKA

- Journal of Separation Science - Year 2009

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Free volume in physical absorption of carbon dioxide in ionic liquids: Molecular dynamics supported modeling

Publication

- SEPARATION AND PURIFICATION TECHNOLOGY - Year 2023

Understanding the mechanisms underlying the carbon dioxide (CO2) absorption in ionic liquids (ILs) is the key to their efficient utilization in industrial flue gas treatment. One of the parameters considered substantially important in the process is the Free Volume. In this study, the Fractional Free Volume (FFV) of 73 ILs was calculated using Molecular Dynamics (MD). A quantitative Structure-Property Relationship (QSPR) study...

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Superhydrophobic and superoleophilic melamine sponges impregnated with deep eutectic solvents for oil spill cleanup

Publication

- SEPARATION AND PURIFICATION TECHNOLOGY - Year 2023

The extensive extraction of oil from the bottom of seas and oceans and its transportation by tankers increase the risk of potential environmental disasters associated with hydrocarbon fractions entering water reservoirs. Therefore, this paper presents the preparation of a simple impregnation of a melamine sponge with deep eutectic solvents (DES), which can be obtained from natural sources, including coconut oil, palm kernel oil,...

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Mechanochemically synthesized Mn3O4@β-cyclodextrin mediates efficient electron transfer process for peroxymonosulfate activation

Publication

H. Liu
X. Dai
L. Kong
M. Xie
C. Sui
Q. Zhang
G. Boczkaj
P. Kowal
B. Cai
J. Zhan

- SEPARATION AND PURIFICATION TECHNOLOGY - Year 2023

The rational surface engineering of heterogeneous catalysts is of great significance in advanced oxidation processes (AOPs) for eliminating refractory contaminants but remains challenging. In this study, β-cyclodextrin modified Mn3O4 (Mn3O4@β-CD) was prepared through a mechanochemical approach for peroxymonosulfate (PMS) activation, which achieved efficient bisphenol A (BPA) removal via electron transfer process (ETP). The reactive...

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Hybrid metal and non-metal activation of Oxone by magnetite nanostructures co-immobilized with nano-carbon black to degrade tetracycline: Fenton and electrochemical enhancement with bio-assay

Publication

R. Darvishi
M. Naderi
G. Boczkaj
S. Jorfi
A. Khataee

- SEPARATION AND PURIFICATION TECHNOLOGY - Year 2021

Electrochemically synthesized magnetite nanostructures (ESMNPs) as a metal activator and nano-carbon black (NCB) as a non-metal activator were co-immobilized by alginate natural polymer to activate Oxone for the degradation of tetracycline (TC) antibiotic. The formation of sulfate radical was indirectly confirmed during the Oxone/ESMNPs/NCB/alginate process via the addition of scavenging compounds. This study revealed the high...

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Deep eutectic solvents – Ideal solution for clean air or hidden danger?

Publication

- SEPARATION AND PURIFICATION TECHNOLOGY - Year 2023

The industrial sector is one of the fastest-growing sources of greenhouse gases, due to its excessive energy consumption to meet the rapidly growing demand for energy-intensive products. The use of deep eutectic solvents (DESs) has been studied extensively in order to cope with these harmful gases, but their usage can be an issue in respect to ecological reasons. Do deep eutectic solvents harm the atmosphere? Yes, these solvents...

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Heterojunction of (P, S) co-doped g-C3N4 and 2D TiO2 for improved carbamazepine and acetaminophen photocatalytic degradation

Publication

E. Çako
S. Dudziak
P. Głuchowski
G. Trykowski
M. Pisarek
A. Fiszka Borzyszkowska
K. Sikora
A. Zielińska-Jurek

- SEPARATION AND PURIFICATION TECHNOLOGY - Year 2023

Novel photocatalysts of phosphorus and sulfur co-doped graphitic carbon nitride incorporated in 2D TiO2 structure were successfully fabricated and applied for solar-driven degradation of emerging pollutants from the group of pharmaceuticals not susceptible to biodegradation. The hybrid photocatalysts with different loadings of (P, S)-doped g-C3N4 were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR),...

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A hierarchical porous composite magnetic sorbent of reduced graphene oxide embedded in polyvinyl alcohol cryogel for solvent‐assisted‐solid phase extraction of polycyclic aromatic hydrocarbons

Publication

N. Rattanakunsong
S. Jullakan
J. Płotka-Wasylka
O. Bunkoed

- JOURNAL OF SEPARATION SCIENCE - Year 2022

A hierarchical porouscomposite magnetic sorbent was fabricated and applied tothe dispersive solvent-assisted solid-phase extraction of five polycyclic aromatichydrocarbons. A sorbent was first prepared by incorporating graphene oxide,calcium carbonate, and magnetite nanoparticles into a polyvinyl alcohol cryo-gel. The graphene oxide was converted to reduced graphene oxide using ascorbicacid and a hierarchical porous structure was...

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