Contain all the articles from this issueICEEM/01 -- Environmental Engineering SectionThermodynamic and kinetic study of gas desulphurization by adsorption on zeolites  Ion Untea, Dan Brasoveanu, Madeleine Dancila, Szidonia Bocskor Mixed oxides derived from vanadium substituted layered double hydroxides as catalysts precursors for SO2 oxidationGabriela Carja, Ionel Popa, Gabriela Ciobanu, Nicolae Aelenei The impact of energy production on environment in RomaniaCarmen Zaharia, Mioara Sur...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25168

Abstract Phytoremediation is an eco-friendly, cost effective, in situ treatment technology. In the present research study, phytoremediation technology has been employed for remediation of radionuclides namely 137Cs and 90Sr by using living green plant Catharanthus roseus. C. roseus plants were exposed to different activity levels of 137Cs and 90Sr in aquatic condition to assess the efficiency of plants for remediation of radionuclides. C. roseus plants have been found to remediate 70%, 52% an...
Autori: Singh Anamika, Susan Eapen, Madhusudan H. Fulekar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25417

Abstract Large amount of radioactive sources generate gamma rays of various energies and intensities. Gamma-ray spectroscopy is applied for the quantitative study of the energy spectra of gamma-ray sources. In the present paper, a statistical analysis of the energy spectra of gamma-ray spectroscopy monitored during 4 years at the “Dosimetry and Radioprotection” Laboratory from ”Vasile Alecsandri” University of Bacău is provided. Several new mathematical parameters were calcula...
Autori: Marius Stamate
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26144

AbstractLithuania is planning to construct a new nuclear power plant nearby the closed one. The possible radioactive pollution can be one of the main problems in its surroundings. Results of investigations of the gamma radiation equivalent dose rate (EDR) at new nuclear power plant sites are presented. Main factors influencing the level of the EDR are identified and evaluated, and geological structure of alternative sites is discussed. The gamma spectrometry data showed that the dominant influen...
Autori: Raselė Girgždienė, Vigilija Cidzikienė
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26277

Abstract In order to remove various radionuclides (Tl+, Sr2+and La3+) from wastewaters we used three solid supports of (styrenedivinylbenzene) grafted with different pendant groups (1-triphenylphosphonium; 2-izo-propylphosphonate; 3- aminoethylaminomethyl). The solid supports with different pendant groups were impregnated with ionic liquid (Cyphos IL-101- trihexyltetradecylphosphonium chloride). IR-spectra, EDX-ray and SEM image were used to characterize the adsorbent obtained after the imp...
Autori: Mihaela Ciopec
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26749

Accidents in spent nuclear fuel reprocessing plants are a critical issue for the safety of people, of operators and the environment, as well as for the security of the plants. The purpose of this work is to demonstrate the possibility to use a free license code to simulate radiological diffusion after an accident in these particular plants, in order to obtain a model which allows identifying escape routes for the people potentially involved in the fallout. The authors performed a benchmark an...
Autori: Mariachiara Carestia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27015

This paper presents the results of measurements related to the activity concentrations of 226Ra, 232Th and 40K in autoclaved aerated concrete (AAC) used as building materials for various constructions in Romania. Radiation index (I) and the hazard index (HI) were estimated to assess the risk arising from the usage of AAC materials. Our study considered various AAC samples produced by different companies, in 2015. The activity concentrations of 226Ra, 232Th and 40K were measured using by a gam...
Autori: Dorina Nicolina Isopescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27018

The present paper focuses upon the analysis of 226Ra, 232Th and 40K radionuclides, making use of high-resolution HPGe γ-spectrometry devices. By means of this technique, the radiological risk is investigated in the case of various sand samples. The natural concentrations for 226Ra, 232Th and 40K, from sand samples, ranged from (9.3-20.0 Bqkg-1), (9.1-23.7 Bqkg-1) and (203.5-403.3 Bqkg-1), respectively. The radium equivalent activity of sands under investigation was also analyzed and ranged...
Autori: Dorin Vasile Moldovan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27775