This paper analyzed parameters of biological pre-treatment process of petrochemical wastewater from styrene and propylene oxide production. It was shown that the optimal conditions for the activity of microorganisms in the bioreactor are avoiding presence toxic compounds in the influent wastewater with an amount exceeding the threshold of microbial community tolerance; incoming wastewater pH in the bioreactor ranges from 7.0 to 8.0; dissolved oxygen concentration is not less than 2 mg/l; wastewater temperature in the bioreactor ranges from 25 to 32 °C and the presence of biogenic elements in an amount strictly adequate to the needs of microorganisms. The optimal ratio of COD : NH 3 : P 2O 5 for the microorganisms in the bioreactor of the studied apparatus was analyzed. The quantity of biogenic elements that were added into the bioreactor was determined.
нефтехимические сточные воды, предварительная биоочистка, биогенные элементы, petrochemical wastewater, biological pre-treatment, biogenic elements
1. T. Asano, F. L. Burton, H. L. Leverenz, R. Tsuchihashi, G. Tchobanoglous, Water Reuse. McGraw-Hill Science Engineering, New York, USA, 2006, S. 16-19;
2. A.V. Artemov, A.V. Brykin, M.N. Ivanov, O.V. Shelyakov, V.A. Shumaev, Zh. Ros. him. ob-va im. D.I. Mendeleeva, 52, 4, 4-14 (2008);
3. M. Bramucci, V. Nagarajan, Ecology and industrial microbiology, 9, 3, 275-278 (2006);
4. X. Wang, X. Wen, H, Yan, K. Ding, F. Zhao, M. Hu, Bioresource Technology, 102, 3, 2352-2357 (2011);
5. I. Lazar, S. Dobrota, A. Voicu, M. Stefanescu, L. Sandulescu, I.G. Petrisor, Journal of Petroleum Science and Engineering, 22,1-3, 151-160 (1999);
6. Yu.Yu. Lur'e, Analiticheskaya himiya promyshlennyh stochnyh vod. Himiya, Moskva, 1984, 448 s;
7. GOST R 52708-2007. Voda. Metod opredeleniya himicheskogo potrebleniya kisloroda. Standartinform, Moskva. 2007. 12 s;
8. Lin' Dao Thi Thu, T.V. Grigor'eva, O.I. Yakusheva, V.N. Nikonorova, O.N. Il'inskaya, Uchenye Zapiski Kazanskogo universiteta, 155, 2, 138-146 (2013);
9. Dao Lin' Thi Thu, T. V. Grigor'eva, R. M. Devyatiyarov, Ngo Kuen Kui, O. I. Yakusheva, V. N. Nikonorova, O. N. Il'inskaya, Vestnik KTU, 16, 7, 158-160 (2013);
10. L. Dao, T. Grigoryeva, L. Alexander, R. Devjatijarov, O. Ilinskaya, Ecotoxicology and Environmental Safety, http://dx.doi.org/10.1016/j.ecoenv.2014.07.012 (2014);
11. Dao Lin' Thi Thu, Ngo Kuen Kui, O.N. Il'inskaya, Vestnik KTU, 17, 1, 178-180 (2014);
12. Dao Lin' Thi Thu, T. V. Grigor'eva, Ngo Kuen Kui, O. I. Yakusheva, V. N. Nikonorova, O. N. Il'inskaya, Vestnik KTU, 16, 10, 182-185 (2013).
