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Wyszukujesz frazę "environmental risk indicator" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Establishing Environmental Standardization of Wastewater Composition Based on Environmental Risk Assessment
Autorzy:
Proskurnin, Oleg
Malovanyy, Myroslav
Belokon, Karina
Rybalova, Olha
Ivashchenko, Taras
Tsapko, Nataliia
Stepova, Olena
Powiązania:
https://bibliotekanauki.pl/articles/2202239.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wastewater
pollutant
water body
environmental risk
limited concentration
comprehensive quality indicator
optimisation
water quality standards
Opis:
The article considers the problem of rationing wastewater discharge in terms of environmental risk management, caused by the pollution of waterbodies. The cases of using a simple indicator of water quality in the form of concentration of a substance, as well as a complex indicator of water quality were considered. The relevance of using a complex indicator is caused by the similar effect of various substances on the ecosystem and man. For both cases, the algorithms for determining the permissible composition of wastewater, ensuring compliance with the established standards of natural water quality in the control points of the water body with a given probability, were developed. In the case of using complex indicators in order to unambiguously solve the problem of rationing wastewater composition, permissible concentrations of substances were finally determined by solving the optimization problem. The optimization criterion is the minimum cost of water treatment. The method of ecological standardization of wastewater composition suggested in the article is applicable for the case of normal probability distribution of a substance in wastewater according to data of field measurements.
Źródło:
Journal of Ecological Engineering; 2022, 23, 11; 139--146
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental effects of using large rivers for irrigation in the Kazakhstan – Syr Darya case study
Autorzy:
Mustafayev, Zhumakhan
Mosiej, Józef
Abdyvalieva, Karlygas S.
Kozykeeva, Alija
Powiązania:
https://bibliotekanauki.pl/articles/1844408.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
diversity index
irrigation
soil degradation
Syr Darya River
environmental risk indicator
Opis:
The issues discussed in the paper concern the assessment of changes in quantitative and qualitative indicators of water resources in the climatic conditions of the southern part of Kazakhstan. For this purpose, many years of systematic field observations and other continuous data obtained from the functioning measurement and observation stations operating within the Aral-Syrdarya Basin Inspection were used. On the basis of the obtained data, indicators were determined that characterize the quantity and quality of water supplied to the soil in the irrigation process, as well as the quantity and quality of water flowing out of the drainage systems, together with an evaluation of the effectiveness of irrigation and drainage systems. Soil salinity was assessed in five irrigated massifs with a total area of 332.55 thous. ha. For the same irrigated massifs, the annual amounts of water taken for irrigation, the amount of outflowing water and the assessment of the mineralization level were determined. Based on the developed results of field observations characterizing the hydrological and environmental situation of the lower section of the Syr Darya River in 1960–2015, the negative reaction coefficients were calculated for the local population, soil and vegetation for five of the irrigated massifs of the Kyzylorda region. The ecological situation of the habitat of soil and plants in the lower reaches of the Syr Darya River in all irrigation areas deteriorates on a time scale, since as a result of the reclamation of agricultural lands, intensive secondary soil salinization occurs and the formation of infiltration runoff with high mineralization, contributing to the violation of the harmonization of the relationship between nature and man.
Źródło:
Journal of Water and Land Development; 2020, 47; 125-134
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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