E.N. Burnashova1,2, S.Y. Semyonov2
1Siberian Research Institute of Agriculture and Peat – branch of the Siberian Federal Science Centre of Agrobiotechnologies, ul. Gagarinа, 3, Tomsk, 634050, Russian Federation
2National Research Tomsk State University, prosp. Lenina, 36, Tomsk, 634050, Russian Federation
Summary. It is examined the current science and technology state in the sphere of physical and chemical factors influence on the biological wastewater treatment with anaerobic ammonia oxidation (the ANAMMOX-process). The optimal temperature for the ANAMMOX-process is 20-43degrees at pH 8.0. The anaerobic (anoxic) conditions with the oxygen concentration less than 3.2x10E-2 mg/l should be maintained in the reactors. ANAMMOX-bacteria can use low-molecular-weight organic acids as electron donors. Nitrite is the main electron acceptor, but ferrous iron, manganese oxides and sulfates can also be used. Methanol, cadmium, mercury, and copper produce a stable toxic effect on the process. The ANAMMOX-process is inhibited by 50 % by the following substances: silver ions (11.52 ± 0.49 mg/l), mercury (60.35 ± 2.47 mg/l), toluene (73 mg/l), cadmium (11.16 ± 0.42 mg/l). Chloride-ions (at the concentration of 7.1 mg/l), ammonium (0.99 g/l), nitrites (1.15 g/l), nitrates (2.79 g/l), phosphates (1.9 g/l) influence Candidatus Kuenenia stuttgartiensis bacteria in the same way. The ANAMMOX-bacteria are also able to adapt gradually to NaCl concentrations up to 15 g/l. In order to restore their activity, the calcium ions and graphene oxide are used. It recovers faster if Ca2+ concentration increases from 0.8 mg/l to 20 mg/l, and if the graphene oxide concentration increases from 0.05 to 0.1 g/l. The reactor efficacy can be increased with the periodical use of ultrasound exposure at 0.7 W/cm2 for 0.19 minutes.
Keywords: wastewater, ANAMMOX.
Author Details: E.N. Burnashova, post-graduate student, research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); S.Y., Cand. Sc. (Biol.), assoc. prof.
For citation: Burnashova E.N., Semyonov S.Y. Influence of Physical and Chemical Factors on the ANAMMOX-Process. Dostizheniya nauki i tekhniki APK. 2016. V.30. No 5. Pp. 78-81 (In Russ.).