Browsing by Author "Şurîghina, Olga"

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    ANALIZA DINAMICII MULTIANUALE A COMPOZIŢIEI IONICE A APELOR FLUVIULUI NISTRU
    (CEP USM, 2011) Goreaceva, Nelli; Gladchi, Viorica; Bunduchi, Elena; Şurîghina, Olga; Romanciuc, Lidia
    The present article contains the analysis of the long-term and annual variability of the water content of the Moldovan Middle region of Dniester, performed on the results of annual hydro chemical surveys of 2003-2010.
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    IMPACTUL AFLUENŢILOR DIN DREAPTA ASUPRA CALITĂŢII APELOR FLUVIULUI NISTRU ÎN PERIOADA DE PRIMĂVARĂ A ANULUI 2009
    (CEP USM, 2010) Duca, Gheorghe; Gladchi, Viorica; Goreaceva, Nelly; Bunduchi, Elena; Borodaev, Ruslan; Lis, Angela; Anghel, Lilia; Şurîghina, Olga; Romanciuc, Lidia
    Among the main factors that affect water quality of the main water resources of our country, which also ensures the economic development of the Republic, may be named the chemical flow of the tributaries waters and hydro-technical facilities, such as storage tanks.In this paper are exposed the results of researches related to the chemical composition of waters at the mouth of the tributaries of the right bank of the Dniester River - Raut, Ichel, Bic, Botna, as well as the chemical composition ofDniester waters upstream and downstream of the mouth of the mentioned above tributaries.
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    SUBSTANŢELE TENSIOACTIVE ÎN SISTEMELE ACVATICE
    (CEP USM, 2012) Şurîghina, Olga
    Surface active agents are organic chemicals that reduce surface tension in wate rand other liquids. The most familiar use for surfactants are soaps, laundry detergents, dishwashing liquids and shampoos. Other important uses are in the many industrial applications for surfactants in lubricants, emulsion polymerisation, textile processing, mining flocculates, petroleum recovery, wastewater treatment and many other products and processes. here are many sources of surfactants that are discharged into natural waters. Industrial sources include textile, surfactants and detergent formulation. Surfactantsare also used in laundries and households and are therefore found in discharges from sewage treatment works. They also have agricultural applications in pesticides, dilutants and dispersants. Need to study the content of surface active agents in water objects specifying their type and research chemical water self-purification processes in the presence of such substances.