Электронный каталог

24
K21
Karmanovskaya, N. V.
    Public environmental monitoring of the state of snowpack in norilsk. [Текст] / N. V. Karmanovskaya, O. V. Nosova, A. V. Kaverzin // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 95-103
ББК 24

Рубрики: chemistry

Кл.слова (ненормированные):
precipitation -- industrial area -- melt water -- chemical characteristics
Аннотация: It is considered that Norilsk ranks second in terms of atmospheric contamination. Industrial enterprises annually emit large amounts of sulphur dioxide, phenols, and heavy metal particles. The city is located within the Far North and is distinguished by the harsh climate of the subarctic type. The snow cover can lie from 244 to 277 days. Snow is a good sorbent; therefore, the snow cover accumulates solid and gaseous pollutants that enter it from the atmosphere with precipitation or are absorbed from it. The purpose of this study was to analyse the snow cover in the Norilsk industrial region and assess the state of atmospheric air in the winter. To achieve this goal, it is necessary to solve the following tasks: conduct a literature review on a given topic; take samples of snow in various industrial districts of Norilsk; study the dependence of the qualitative characteristics of snow on the sampling site; draw conclusions on the quality of snowpack in different areas of the industrial districts of Norilsk. In the course of the study, the following methods were used: organoleptic, visual, methods for determining water transparency, titrimetric analysis, etc. Heavy metal ions and sulphate ions were not detected in the thawed snow, so no industrial gas pollution was noted in the residential area. Most of the particulate contamination was caused by slagging of roads to improve vehicle traction.
Держатели документа:
WKU
Доп.точки доступа:
Nosova, O. V.
Kaverzin, A. V.

35
M97
Musina, G. N.
    Processing of coal tar into petrochemicals and fuel products. [Текст] / G. N. Musina // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №4. - P. 40-47
ББК 35

Рубрики: chemical Technology

Кл.слова (ненормированные):
coal -- hydrogenation -- peat -- cavitation -- petrochemicals -- fuels -- resin -- phenol
Аннотация: the article summarizes the results of the research. The influence of cavitation-wave action on coal tar, which leads to a change in the rheological properties (density, viscosity), as a result of an increase in the yield of light and medium fractions, is investigated, and the process of catalytic hydrogenation of coal in the presence of a catalytic additive and mine methane is studied.
Держатели документа:
WKU
Доп.точки доступа:
Takibayeva, A.T.
Kulakov, I.V.
Zhorabek, A.A.
Shakhmetova, G.A.

26
K80
Kozhagalieva, R.
    Features of the population of nelumbo nucifera distributed in the lower reaches of the kigach river, atyrau region. [Текст] / R. Kozhagalieva , S. Sungatova // BULLETIN WKU. - 2021. - №4. - Р. 243-247
ББК 26

Рубрики: Геогрфия

Кл.слова (ненормированные):
phenological research -- population -- tier -- geographical analysis -- environmental analysis -- life form -- population -- adaptation -- phenological phases
Аннотация: In the article presented to the publication, the biological features and adaptations of the population of Nelumbo Nucifera found in the Kigach River, Atyrau region are determined and the results of phenological studies are presented. In recent years, due to the increase in coastal settlements, places of production and Recreation, the natural environment is changing dramatically. In this regard, the main goal of our work is to analyze the features of adaptation and phenological indicators of the population of Nelumbo Nucifera whose productivity has increased in recent years. The percentage of vegetation cover of this amazing lotus, which is found in the kigach River, describes the vegetation cover of the tiers. In the future, it is relevant to preserve and protect this world of flora. The living conditions of this plant Nelumbo Nucifera, listed in the Red Book of Kazakhstan, are at a good level. Because every year it blooms and grows. The study found out why Nelumbo Nucifera appeared in the Kigach River, Atyrau region. It has been shown that in natural conditions it is rarely propagated by seeds, and renewal occurs vegetatively. As a result of phenological studies, we were convinced that the Lotus found in the kigach River is actually an endemic species, a rare plant. Therefore, with this in mind, the authors propose to conduct monitoring of the plant Nelumbo Nusifera thereby keeping the state of the population under control.
Держатели документа:
ЗКУ
Доп.точки доступа:
Sungatova, S.