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Accumulation and fate of selected heavy metals in biological wastewater treatment system
PublicationBadano akumulację oraz stopień usuwania metali ciężkich (Cd, Cu, Pb, Zn) w systemie biologicznego oczyszczania ścieków. Porównano zawartość wybranych metali w ściekach surowych i oczyszczonych, a także ich stężenie w osadzie czynnym przed i po beztlenowej stabilizacji.
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[AiU] Challenges and perspectives of contemporary architecture and urbanism
e-Learning CoursesThis course is compulsory for PhD students assigned to Architecture and Urbanism tracks at Doctoral School at Gdańsk University of Technology. The course is conducted by prof. Giovanna Acampa, Kore University of Enna Course type: workshops Total hours of training: 15 teaching hours
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[AiU] Sustainable Design and Environmental Changes
e-Learning CoursesThis course is compulsory for PhD students assigned to Architecture and Urbanism tracks at Doctoral School at Gdańsk University of Technology. The course is conducted by prof. Giovanna Acampa, Kore University of Enna Course type: workshops Total hours of training: 15 teaching hours
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Retention behaviour of some high-intensity sweeteners on different SPE sorbents
PublicationThe objective of this paper is to provide information about application of solid phase extraction (SPE) for isolation of nine high-intensity sweeteners (acesulfame-K, alitame, aspartame, cyclamate, dulcin, neotame, saccharin, sucralose and neohesperidin dihydrochalcone) from aqueous solutions. The influence of several types of LC-MS compatible buffers (different pH values and compositions) on their recovery has been studied and...
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Urban dew formation efficiency and chemistry in Poland
PublicationThe measurements of dew formation efficiency and chemistry were performed in Poland in September 2009, as a part of a longer, two-year sampling campaign. Pairs of sites, representing centers of major Polish cities and rural conditions in three different regions, were compared. With the aim to get more detailed landuse-oriented characteristics of dew, two additional sites were set close to Wroclaw. Collection of dew at each site...
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Źródła, otrzymywanie i przydatność niektórych termostabilnych enzymów w przetwórstwie skrobi i mleka
PublicationPrezentowane wyniki wskazują na możliwość usprawnienia produkcji syropów skrobiowych przez zastosowanie rekombinantowej alfa-amylazy z Pyrococcus woesei i termostabilnej alfa-glukozydazy z Thermus thermophilus. Wykazano także przydatność rekombinantowej, termosta-bilnej beta-galaktozydazy z Pyrococcus woesei do wytwarzania bez-laktozowego mleka i serwatki. Enzym ten wykazuje dużą termostabil-ność i znaczną aktywność w szerokim...
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A comparison of structural and luminescence properties of lead(II) coordination polymers with isomeric thiophenecarboxylate ligands
PublicationTwo new lead(II) coordination polymers with isomeric thiophenecarboxylates, namely [Pb(2tpCOO)2]n (1) and [Pb(3tpCOO)2(H2O)]n (2) (2tpCOO− = thiophene-2-carboxylate, 3tpCOO− = thiophene-3-carboxylate), were synthesized and characterized. Single crystal X-ray crystallography revealed a distorted pentagonal pyramidal geometry {PbO6} around Pb in 1 and a distorted dodecahedral geometry {PbO8} in 2. The distortion derived from the...
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Korzystne cechy bioreaktora airlift z odwrotną warstwą fluidalną
PublicationZbadano wpływ parametrów procesowych i właściwości fizykochemicznych na wynik i czas procesu biodegradacji ketonów w roztworach wodnych. Stosowano kultury bakterii A. Calcoaceticus. Stwierdzono wzrost czasu biodegradacji ze wzrostem początkowego stężenia ketonów oraz ze wzrostem pH w roztworach alkalicznych.
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Ahmet Kertmen
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Electrochemical Activity and Electrical Properties of Optimized Polypyrrole Coatings on Iron
PublicationIn this work, electrochemical activity and electrical properties of polypyrrole (PPy) coated iron electrodes have been investigated. PPy film was electrochemically polymerized from sodium salicylate aqueous solution under conditions, which provided an increase of iron corrosion resistance. It was noticed that the pH of the solution and the applied electrode potential range during the study of the polymer properties had an influence...
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The Use of Artificial Neural Networks and Decision Trees to Predict the Degree of Odor Nuisance of Post-Digestion Sludge in the Sewage Treatment Plant Process
PublicationThis paper presents the application of artificial neural networks and decision trees for the prediction of odor properties of post-fermentation sludge from a biological-mechanical wastewater treatment plant. The input parameters were concentrations of popular compounds present in the sludge, such as toluene, p-xylene, and p-cresol, and process parameters including the concentration of volatile fatty acids, pH, and alkalinity in...
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Study of the effect of residues of pharmaceuticals on the environment on the example of bioassay Microtox®
PublicationResidues of pharmaceuticals present in the aqueous environment can be found in a mixture of different substances wherein drugs not remain inert with respect to each other. In such mixtures a phenomenon of synergism or antagonism may occur, which can contribute to increase or decrease the overall toxicity of the mixture of drugs. Pharmaceuticals namely: diclofenac (sodium salt), oxyteracycline hydrochloride, fluoxetine hydrochloride,...
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Charakterystyka preparatów beta- galaktozydazy z Sulfolobus shibatae.
PublicationCelem pracy było zbadanie przydatności cytoplazamatycznej beta- galaktozydazy/beta- glukozydazy z hipertermofilnego archeona Sulfolobus shibatae do hydrolizy laktozy. 16-krotny stopień oczyszczenia ekstraktu bezkomórkowego,zapewniający aktywność specyficzną 29,5 U/mg białka uzyskiwano poprzez frakcjonowanie siarczanem amonu, chromatografię jonowymienną i sączenie molekularne. Otrzymany preparat wykazywał największą aktywność...
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Optimization of adsorption of methyl orange from aqueous solution by magnetic CoFe2O4/ZnAl-layered double hydroxide composite using response surface methodology
PublicationThe CoFe2O4/ZnAl-layered double hydroxide (LDH) composite was successfully developed through a facile co-precipitation method, characterized, and applied as an effective adsorbent for the removal of methyl orange (MO) dye from aqueous solutions. The central composite design (CCD) of the response surface methodology (RSM) was employed to estimate and optimize process variables such as initial MO concentrations, solution pH, adsorbent...
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Interspecific and intraspecific variation in organochlorine pesticides and polychlorinated biphenyls using non-destructive samples from Pygoscelis penguins
PublicationAs humans are present in Antarctica only for scientific and tourism-related purposes, it is often described as a pristine region. However, studies have identified measurable levels of Persistent Organic Pollutants (POPs), such as organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs), in the Antarctic region. These are highly toxic anthropogenic compounds with tendency to travel long distances and reach remote environments, where...
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Właściwości niskotemperaturowe betonów asfaltowych o wysokim module sztywności (AC-WMS) w badaniach trzypunktowego zginania
PublicationArtykuł przedstawia właściwości niskotemperaturowe betonów asfaltowych o wysokim module sztywności. Przedstawione wyniki zostały uzyskane w dwóch badaniach zginania trzypunktowego próbek belkowych: ze stałą prędkością przemieszczenia oraz pod stałym obciążeniem. Obie te metody są od dawna stosowane na Politechnice Gdańskiej do oceny właściwości niskotemperaturowych betonów asfaltowych. Badaniu poddano pięć betonów asfaltowych –...
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Mode shapes of a beam and plate with defects, obtained by experimental modal analysis
Open Research DataThe DataSet contains the experimental results of the first mode shape for a beam and a plate.
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Inter Applied Chemistry Programme 7 Principles of Environmental MicrobiologyC.W. Knapp
e-Learning CoursesInter Applied Chemistry Programme 7 Dr Charles W. Knapp BSc MSc PhD FHEA Principles of Environmental Microbiology
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Mykola Lukianov mgr
PeopleMykola Lukianov received a B.Sc. and M.Sc degree in Electronics and Communications from the National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” in 2018 and 2020 respectively. He is currently a PhD student at the Gdansk University of Technology, Poland and a researcher group member in project SMARTGYsum “Research and Training Network for Smart and Green Energy Systems and Business Models”. His research...
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Separation of bacteria in UF process
Open Research DataLarge quantities of water are used in car washing, so it is necessary to recycle the water, which is made possible by membrane filtration. FP100 (100 kDa) membranes have been used to treat car wash wastewater by ultrafiltration (UF). With time of operation, the properties of the membranes change. The membranes need to be cleaned periodically to prevent...
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The biotic and abiotic mercury at the coastal zone of Gulf of Gdańsk
Open Research DataConcentration of neurotoxin Hg (mercury) was determined monthly form 01.2012 to 05.2013 (total and suspended) in the surface microlayer and the surface water as well as in: phytoplankton, zooplankton, epilithon, epifithon, phytobenthos (macroalgae and angiosperms), zoobenthos, and in the sediment. The study was conducted in the coastal zone of the Puck...
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X-ray Photoelectron Spectroscopy studies of various carboxylic acids adsorption on aluminium alloys in alkaline media
Open Research DataThis dataset contains the results of high-resolution XPS studies obtained during evaluation of high corrosion inhibition efficiency of various carboxylic acids towards aluminium alloy 5754 in bicarbonate buffer pH=11.
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The corrosion studies of 3,4,5-trihydroxybenzoic acid as an effective corrosion inhibitor of low alloy steel
Open Research DataThe dataset contains the electrochemical studies evaluating if gallic acid is a corrosion inhibitor for low alloy steel. Three measurements were carried out each case; corrosion potential (label ecorr), electrochemical impedance spectroscopy (label eis) and cyclic polarization (label cp). The measurements were carried out in sodium chloride, acidified...
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A taxonomy of challenges to resilient message dissemination in VANETs
PublicationInter-vehicular communications is seen as a promising solution to a number of issues related with public road safety, road congestion management, and infotainment. However, Vehicular Ad-hoc NETworks (VANETs) characterized by high mobility of vehicles and facing a number of other issues related with high frequency wireless communications and network disconnections, encounter major challenges related with reliability of message delivery....
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Models of Brushless Synchronous Generator for Studying Autonomous Electrical Power System
PublicationThis is a PhD dissertation. The work presented in this monograph was carried out at the Department of Power Electronics and Electrical Machines, Faculty of Electrical and Control Engineering at the Gdansk University of Technology. Developed during the research models of brushless synchronous generator ware verified using FEM based simulations and measurements conducted on the prototype generator. The main focus of the research...
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Analiza popytu na usługi transportowe morskie i śródlądowe, część 2
PublicationUsługi transportowe to dynamiczny czynnik kształtowania ruchu turystycznego i jego obsługi. Popyt na usługi transportowe drogą morską zależy od wielu czynników, takich jak potencjał zaplecza gospodarczego, wielkości (struktury) handlu zagranicznego oraz pozycji konkurencyjności portu względem innych portów. W pracy przedstawiono również prognozę popytu na przewozy ładunków obcych dla żeglugi morskiej i śródlądowej oraz prognozę...
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Ocena skutków ekonomicznych organizacji EURO 2004 na poziomie makro i mezo - analiza input-output
PublicationCelem opracowania było oszacowanie ekonomicznego wpływu organizacji EURO 2004 na gospodarkę Portugalii. Aby wyodrebnić efekty bezpośrednie (tj. wzrost produkcji, zatrudnienia, wartości dodanej w sektorach związanych z ogranizacją imprezy) oraz efekty pośrednie (tj. wzrost produkcji, zatrudnienia, wartości dodanej w sektorach powiązanych z tymi działami gospodarki, w których wystąpiły efekty bepzośrednie) wykorzystano model input-output....
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99mTc-Galacto-RGD2: A Novel 99mTc-Labeled Cyclic RGD Peptide Dimer Useful for Tumor Imaging
PublicationThis study sought to evaluate [99mTc(HYNIC-Galacto-RGD2)-(tricine)(TPPTS)] (99mTc-Galacto-RGD2: HYNIC = 6-hydrazinonicotinyl; Galacto-RGD2 = Glu[cyclo[Arg-Gly-Asp-D-Phe-Lys(SAA-PEG2-(1,2,3-triazole)-1-yl-4-ethylamide)]]2 (SAA = 7-amino-L-glycero-L-galacto-2,6-anhydro-7-eoxyheptanamide, and PEG2 = 3,6-dioxaoctanoic acid); and TPPTS = trisodium triphenylphosphine-3,3',3''-trisulfonate) as a new radiotracer for tumor imaging. Galacto-RGD2...
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Przestrzenne podejście do analizy międzysektorowej mobilności płac oraz zatrudnienia
PublicationGłównym celem opracowania jest przedstawienie możliwości zastosowania macie‑rzy sąsiedztwa, opartej na odległości ekonomicznej, w prowadzonych przez autora analizach wiążą‑cych międzysektorową mobilność płac oraz zatrudnienia. Obliczenia odległości ekonomicznej oparto na poziomie PKB, natomiast w modelu przestrzennym wykorzystano dane dotyczące ich wybranych determinant, np. wskaźnika nierówności płacowych, przeciętnego poziomu...
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Determination of thiocyanate as a biomarker of tobacco smoke constituents in selected biological materials of human origin
Publicationn order to protect human health, it is necessary to biomonitor toxic substances originating from tobacco smoke in biological materials sampled from persons with different exposures to tobacco smoke constituents. Thiocyanate anion is a biomarker of exposure to tobacco smoke components which is characterized by a relatively long half‐life in the human body, i.e. 6 days. In this work, we present the results of thiocyanate determinations...
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Recycled Polyurethane as a Second Phase in Thermoset Blends and Its Effect on Thermal Degradation Kinetics Studies
PublicationA new approach is introduced in the modification of thermosetting polymer by using different amount of polyurethane of waste origin. The post consumer polyurethane foam coatings are degraded using glycolysis process and the recycled product is further converted into new polyurethane. The blending of recycled polyurethane with epoxy exhibits transparency and produces nanostructures. The effective interaction between two polymers...
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Iron and manganese removal effects using zeolites
PublicationUsunięcie związków manganu i żelaza z wód podziemnych jest szczególnie ważne ze względów septycznych. Związki te powodują nieprzyjemny smak wody, w warunkach aerobowych tworzą osady. Związki te wytrącają sie w sieci wodociągowej.Celem badań była analiza przydatności naturalnego i modyfikowanego zeolitu jako materiału adsorpcyjnego do usuwania żelaza i manganu. Wprowadzenie modyfikowanego zeolitu umożliwiło uzyskanie dużej poprawy...
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Evaluation of the influence of grapevine growing conditions on wine quality
PublicationScientists are increasingly interested in the viticulture concept of terroir, which states that unique properties of wine are strictly related to the environmental conditions under which grapes are cultivated. The aim of the research was to compare the parameters characterizing wines produced in Poland, such as pH, conductivity, total organic carbon (TOC), and concentration of anions (F−, Cl−, NO2−, NO3−, PO43−, SO42−). It was...
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Evaluation of Langmuir and Freundlich Isotherms for Removal of Cephalexin and Tetracycline Antibiotics By Sistan Sand from Water and Wastewater Samples
PublicationIn this research, Sistan sand was used as a natural and inexpensive sorbent for removal of cephalexin and tetracycline antibiotics from water and wastewater samples. For a concentration 60.0 mg L-1 of cephalexin, optimum removal conditions were: pH of the sample 3.0, adsorbent amount 1.0 g, contact time 20.0 min, added amount of sodium chloride to adjust the ionic strength of the solution 7.0 g L-1. Langmuir isotherm was the best...
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Novel “acid tuned” deep eutectic solvents based on protonated L-proline
PublicationThe paper presents new types of deep eutectic solvents (DESs) based on L-proline protonated using three different acids (hydrochloric, sulfuric and phosphoric)and playing the role of a hydrogen bond acceptor(HBA). Glucose and xylitol were used as hydrogen bond donors (HBD). A series of deep eutectic solvents with various mole ratios were obtained for the systems L-proline: glucose and L-proline: xylitol. Density, melting point,...
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Biological and antibacterial properties of chitosan-based coatings with AgNPs and CuNPs obtained on oxidized Ti13Zr13Nb titanium alloy
PublicationDespite numerous studies, the antibacterial efficiency and cytotoxicity of chitosan-based coatings with nanometals need further studies. The purpose of this research was to determine the biological properties of chitosan coatings implemented with either silver nanoparticles (AgNPs) or copper nanoparticles (CuNPs), that were electrophoretically deposited on electrochemically oxidized Ti13Zr13Nb alloy. The SEM tests were used to...
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Rhamnolipid CMC Prediction
PublicationRelationships between the purity, pH, hydrophobicity (log Kow) of the carbon substrate, and the critical micelle concentration (CMC) of rhamnolipid type biosurfactants (RL) were investigated using a quantitative structure–property relationship (QSPR) approach and are presented here for the first time. Measured and literature CMC values of 97 RLs, representing biosurfactants at different stages of purification, were considered....
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Bohdan Pakhaliuk PhD student
PeopleBohdan Pakhaliuk received the B.Sc. and M.Sc. degrees in industrial electonics from Chernihiv National University of Technology, Chernihiv, Ukraine, in 2016 and 2018 respectively. He is PhD student of double postgraduate study, in Gdansk University of Technology and Chernihiv National University of Technology. He is junior researcher of the Department of Biomedical Radioelectronics Apparatus and Systems, Chernihiv National University...
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Trace elements content of surface peat deposits in the Solovetsky Islands (White Sea)
PublicationPeatlands form environmental archives of trace element deposition. In this regard they are particularly valuable for areas such as the Arctic, where regular pollution monitoring is either impossible or extremely costly. The aim of this study was to assess pollution in the Solovetsky Islands (65° 05' N, 35° 53' E) by examining the spatial variability in trace element content of the uppermost layer of peat, immediately below the...
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Badanie możliwości procesowych obniżenia skażenia wód śródlądowych serwatką
PublicationZaproponowano zastosowanie separacji pianowej do wydzielenia białek z serwatki. Zbadano wpływ pH, stężenia początkowego białek, prędkości przepływu powietrza oraz obecności addytywów na efektywność separacji białek serwatkowych w półperiodycznej kolumnie barbotażowej. Dla wybranych warunków badano także przebieg flotacji białek serwatkowych oraz wartość współczynnika ChZT
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[AiU] Research methodology in architecture and urban planning
e-Learning CoursesW ramach kursu realizowane będą zajęcia dla grupy doktorantów szkoły doktorskiej z dyscypliny "Architektura i urbanistyka". This course is addressed to the PhD students of "Architecture and urbanism" discipline at the doctoral school. Course type: lecture Total hours of training: 30 teaching hours
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PL-5G National Laboratory for Advanced 5G Research
ProjectsProject realized in Faculty of Electronics, Telecommunications and Informatics according to POIR.04.02.00-00-D008/20-00 agreement from 2020-12-29
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Leszek Pawłowski dr
PeopleDr Leszek Pawłowski, PhD, lawyer, assistant professor at the Department of Palliative Medicine, Medical University of Gdańsk (Poland), member of Polish Working Group on End-of-Life Ethics and Editorial Board member of the journal Palliative Medicine in Practice. His research is focused on legal issues in palliative care, hospice and palliative care volunteering, Advance Care Planning and medical law. He is involved in healthcare...
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Wpływ procesu krysytlizacji na strukturę i właściwości elektryczne szkieł tlenkowych z grupy (Pb,Bi)-(Si,Ge,P)-O
ProjectsProject realized in Faculty of Applied Physics and Mathematics according to UMO-2012/05/B/ST3/02816 agreement from 2013-03-15
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O-substituted tetrahydroxamate derivatives of p-tert-butylcalix[4]arene as receptors for transition and heavy metal cations
PublicationTetrasubstituted O-hydroxamate derivatives of p-tert-butylcalix[4]arene were applied as active materials in ion-selective membrane electrodes and were tested towards Pb-selectivity. The electrodes gave near-Nernstian characteristics for Pb2+ cations. The selectivity coefficients were determined. The influence of plasticizer on the electrode behaviour was studied. The dependence of the chemical structure on selectivity coefficients...
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Some applications of thermophiles and their enzymes for protein processing
PublicationPrzedstawiono charakterystykę, właściwości oraz możliwości zastosowań enzymów proteolitycznych wytwarzanych przez termofile. Zaletą tych biokatalizatorów jest między innymi duża odporność na działanie rozpuszczalników organicznych, detergentów i innych czynników denaturujących białka oraz mała wrażliwość na zmiany pH. Dokonano też przeglądu czynników powodujących dużą stabilność proteaz z termofili.
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Effects of biotransport and hydro-meteorological conditions on transport of trace elements in the Scott River (Bellsund, Spitsbergen)
PublicationThe shaping of surface water chemistry in the Svalbard Archipelago is strongly dependent on the geology of the catchment and the process of long-range transport of atmospheric pollutants (LRATP). It was found that the dissolved trace elements in the Scott River, which catchment is characterized by a decreasing degree of glaciation, were of the natural origin (i.a. weathering and dissolution of local geological substratum). The...
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Piotr Jamroz dr hab. inż.
PeoplePiotr Jamroz graduated from Wroclaw University of Technology, Faculty of Chemistry in 1998 and obtained his PhD from the same university in 2003. Currently he works as an associate professor at Wroclaw University of Science and Technology, Faculty of Chemistry, Division of Analytical Chemistry and Chemical Metallurgy. His research interests are related to generation and diagnostics of different kinds of plasma sources, including...
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Hanna Gaweł
PeopleHanna is a PhD student at the Doctoral School in Social Sciences in the discipline of Social Communication and Media Sciences at the Jagiellonian University and is employed as an Assistant at the Institute of Information Studies of the said university. She received her Master's degree from Jagiellonian University, where she studied Information Management at the Faculty of Management and Social Sciences. Her Bachelor's degree was...
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Ahmed Lakhdar Kouzou
PeoplePhd Student at Faculty of Electrical and Control Engineering, Gdansk University of Technology . His main areas of research and interests include he application of meta-heuristic optimization algorithms in electric power systems. He served as temporary researsh assitant at Texas A&M University at Qatar. He received his Bachalor’s degree in Electrical and Electronic Engineering in 2017 from the Institute of Electrical &...