A.Y.Oleynik, A.I.Teterya
Simulation of nitrogen removal processes from sewage using a small-size biological purification plants

Applied hydromechanics, Vol. 3 (75) ¹ 3, (2001) p.59-65
On the basis of conceptions and the results of analysis available a mathematical model is proposed of nitrogen removal from sewage by considering nitrification and denitrification hujcesses. An inhibiting effect of various factors and also temperature and pH on these processes is evaluated and taken into account. As to nitrification process a computing model of utilizing soluble oxygen by microorganisms is developed in addition. A calculation technique for nitrification is worked out as applied to reactor-mixers which are the main working elements of a small-size pland. Posibilities of its application under conditions of complex biological purification from organic substances, nitrogen and phosphorus is shown.
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TEXT LANGUAGE: Russian