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Establishing Environmental Standardization of Wastewater Composition Based on Environmental Risk Assessment

Proskurnin Oleg, Malovanyy Myroslav, Belokon Karina, Rybalova Olha, Ivashchenko Taras, Tsapko Nataliia, Stepova Olena

Journal of Ecological Engineering

2022

Vol. 23, nr 11

139--146

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.