№10|2016

WASTEWATER TREATMENT

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UDC 628.35:661.5

Nikolaev Yu. A., KOZLOV M. N., Gavrilin A. M., Kevbrina M. V., Pimenov N. V., Dorofeev A. G., Agaryov A. M. , Kallistova A. Iu.

Innovative energy efficient and resource-saving technology of removing ammonium from wastewater under anaerobic-anoxic conditions

Summary

The specialists of «Mosvodokanal» JSC have developed the technologies of ammonium oxidation under anoxic conditions: double-reactor for low temperatures and single-reactor for 30–37 °С. The technology for the operation at 10–25 °С is performed by bacteria (discovered in «Mosvodokanal» JSC) Сandidatus Аnammoxomicrobium moscowii, fixed to the bed. The rate of nitrogen removal is 50 g/(m3·day) of the reactor. The technology for warm wastewater treatment is performed by new bacteria Сandidatus Jettenia moscovie­nalis, fixed to the bed; the rate of nitrogen removal is 0.47 kg/(m3·day). The use of continuous flow and fixed feed increases the output of the reactor to 0.8 kg/(m3·day). Considering the high economic attractiveness and efficiency of the technology it could be expected that in the very near future the technology will become a frequent practice in wastewater treatment. For the development of the industrial-scale technology a grant was awarded within the frames of the Federal special-purpose program «Research and development for the priority orientations of the development of the scientific and technology sector in Russia for 2014–2020». The work is carried out in cooperation with Federal Research Centre «Fundamentals of Biotechnology» of the Russian Academy of Sciences in Vinogradskii Institute of Microbiology business unit. A pilot plant with a 20 m3 reactor has been assembled, commissioned and operated at the Liuberetskie wastewater treatment facilities in Moscow of a treatment capacity of 20 m3/day of dewatering centrifuges filtrate.

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REFERENCES

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