Facultatea de Chimie şi Tehnologie Chimică / Faculty of Chemistry and Chemical Technology
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Item Soluţii pentru prevenirea şi diminuarea consecinţelor inundaţiilor [Articol](2010) Duca, Gheorghe; Furdui, Teodor; Melniciuc, Orest; Zubcov, Elena; Gladchi, Viorica; Moraru, Constantin; Bogdevici, Oleg; Arnăut, Nicolae; Bujac, VictorThe danger of floods is very up to date for the Republic of Moldova, so, two types of flood are characteristic: transboundary, caused by Dniester and Prut rivers, and local, caused by discharges of small streams, lakes, ponds. A group of experts from the Academy of Sciences of Moldova developed solutions to prevent damages caused by triggering floods. Among these are: the creation of National center of flood monitoring; the assessment of flood areas and the liable to inundation potential of Dniester and Prut rivers and small streams; the elaboration of “Scheme of protection of populated localities against flood”; the regular water sampling in flood areas to monitor the state of pollution; the implementation of flash flood model; the agreement between Ukraine-Republic of Moldova-Romania on monitoring, forecasting and sustainable exploitation of aquatic ecosystems etc.Item Facultatea de Chimie şi Tehnologie Chimică a USM – tradiţii şi rezultate ştiinţifice [Articol](2011) Gladchi, VioricaThe paper reviews the developmental stages of the Faculty of Chemistry and Chemical Technology and the main results of scientific research in the Scientifi c Research Center “Applied and Ecological Chemistry” during the years 2006-2010.Item Conferinţele internaţionale în materie de chimie ecologică identifică soluţii pentru problemele mediului [Articol](2012) Gladchi, Viorica; Romanciuc, LidiaAs scientific direction, Ecological Chemistry has been successfully developing in Moldova over the past three decades at the Department of Industrial and Ecological Chemistry (DIEC) of the Moldova State University. Its history began in 1985, when the First International School on Ecological Chemistry of the Environment was organized by the staff of the DIEC under the coordination of academician Gheorghe Duca.Item Assessment of kinetic parameters in the waters of the Nistru course in the section Naslavcea – Dubasari [Articol](2006) Bunduchi, Elena; Duca, Gheorghe; Gladchi, Viorica; Goreaceva, Nelli; Mardari, IgorThe current work represents the results of a monitoring executed on Nistru River waters between October 2003 and September 2005. The water quality was evaluated on the basis of such kinetic indicators as redox state and capacity of inhibition. The obtained results shows that Nistru River water in the segment Naslavcea village – Dubasari barrage are continuously polluted with reducing substances that diminish the H2O2 content, that actually determines the redox state of natural waters and the content of free radicalsItem The water springs - sources for water supply and irrigation in the Nistru river basin [Articol](2013) Sandu, Maria; Tărâță, Anatolie; Lozan, Raisa; Gladchi, Viorica; Duca, Gheorghe; Țurcan, Sergiu; Moșanu, Elena; Prepeliță, AfanasieThe present study estimates chemical composition and status of the groundwater from the Nistru (Dniester) river basin (about 360 springs and fountains). Research includes defining of springs/fountains location, evaluating physicochemical features of water, highlighting of main pollutants and pollution sources, establishing of water type and quality. It was established that springs/fountains with water that meets the criteria for drinking scope constitute 21%, sanitary acceptable for consumption is water from 129 springs/fountains, with high content of dissolved salts (mineralization >1000 mg/dm3) and hardness exceeding 10 me/dm3 (very hard water) were in 18.5% of sources and approximately 25% of the springs are water polluted with nitrates and its content is more than the MAC from 1 to 6 times.Item Study of springs water quality as sources of potable water and for irrigation in Rezina district [Articol](2010) Sandu, Maria; Moșanu, Elena; Gladchi, Viorica; Tărâță, Anatolie; Duca, Gheorghe; Spătaru, Petru; Lupașcu, Tudor; Sergentu, Efim; Lozan, Raisa; Jabin, Veaceslav; Țurcan, SergiuA spring is a component of the hydrosphere, where water flows on to the surface of the Earth from below the surface. This it is where the aquifer surface meets the ground surface. It may be the result of karsts topography where surface water has infiltrated the Earth’s surface, becoming part of the area groundwater. As sources of water supply in the Republic of Moldova underground waters constitute 15,2% (bore holes, springs and wells). The present work includes water quality investigations and aims to reveal local sources in river Nistru hydrographic basin (Rezina district) for drinking water provision in villages. Chemical composition of investigated spring’s water shows that in Rezina district 19% of springs are polluted with nitrogen compounds. Water of only 9% of springs is in conformity with the standard for drinking water. Water from 102 springs meets the requirements of irrigation that doesn’t present the risk of soil salinization (K > 18) – 1 383 L/min.Item Chemical composition from the dniester river tributaries [Articol](2013) Gladchi, Viorica; Duca, Gheorghe; Goreaceva, Nelli; Bunduchi, Elena; Lis, AngelaThis article presents the results obtained in the framework of the project 09.832.08.06A The role of the tributaries on formation of the Dniester river water and the study of the waters quality of sources/fountains in the catchment area of the Dniester river as sources of water supply and for irrigation in the State Program, Scientific Researches and of the management of waters quality.Item The study of the buffering capacity of several water objects in the Republic of Moldova [Articol](2009) Lis, Angela; Duca, Gheorghe; Bunduchi, Elena; Gladchi, Viorica; Goreaceva, NelliThe Republic of Moldova is situated among countries with relatively poor water resources, therefore their protection and rational use remains a national problem. Due to its geographic position, the Republic of Moldova is subjected to transboundary pollution. The current work represents the estimation of the buffering capacity on the Dniester River waters and its tributaries between November 2008 and October 2009. Decrease of the buffering capacity in water basins leads to disruption of the normal activity of aquatic biota, by increasing the toxicity in their living environment. On the basis of the results of measurements, suggestions for the improvement of the situation will be made and for enhancing public awareness and public authorities involvement.Item The school of ecological chemistry founded by Academician Gheorghe Duca [Articol](2009) Lupașcu, Tudor; Gonța, Maria; Gladchi, VioricaThis review details the most important achievements in the field of ecological chemistry and environmental protection, obtained at the State University of Moldova and Institute of Chemistry of the Academy of Sciences of Moldova. The main research directions are described, as well as main scientific laboratories and centres of these two institutions.Item The study of redox conditions in the Dniester river [Articol](2008) Gladchi, Viorica; Goreaceva, Nelli; Duca, Gheorghe; Bunduchi, Elena; Romanciuc, Lidia; Mardari, Igor; Borodaev, RuslanThe work presented in the paper discusses the contribution of the Novodnestrovsc water system to the formation of redox conditions in the lower Dniester. The conclusions were drawn on the basis of a long-term protocol of analyses that included the analysis of the oxygen regime, evaluation of the content of hydrogen peroxide,rH2, biological oxygen demand as well as other additional parameters.