Андрей Епифанов, A. Epifanov, Павел Гашин, P. Gashin
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OPTIMIZINGAND ADJUSTMENTOF PARAMETER OF THEDISCHARGE OF WASTEWATER SUE "LENOBLVODOKANAL TIKHVIN" ON THE BASIS OF MATHEMATICAL MODELING
The description of the process and treatment facilities GUP "LenoblmolokoTikhvin". A mathematical model of the convective-diffusive transport and transformation of pollutants for the river Tikhvinka in the area of wastewater sue "LenoblmolokoTikhvin". The obtained two-dimensional stationary equation of convective-diffusion transfer of a nonconservative impurity is solved by the finite difference method. According to the developed model, the calculation of the anthropogenic load exerted by the water channel on the Tikhvinkariver was carried out with three variants of the design of the scattering water outlet for the following pollutants: ammonium-ion, nitrate-ion, nitrite-ion and phosphorus total. The maximum concentration of pollutants in the control range and the degree of mixing of pollutants were chosen as criteria for choosing the optimal design. According to the results of mathematical modeling it is shown that the optimal design of the scattering outlet consists of 7 scattering nozzles with a diameter of 200 mm, providing a reduction of the maximum concentrations in the control section by 12% compared to the scattering outlet with 4 drainage pipes.
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