: cc. 139-144
Kremenchuk National University named after Mykhailo Ostrogradskyi

At present, mechanical, chemical, biochemical and physicochemical methods of cleaning are developed and efficiently used to protect water bodies from sewage pollution. The methods of biochemical wastewater purification from organic contaminants with the use of activated sludge have received the highest recognition. Getting of additional nutrients (nitrogen, phosphorus, potassium) and other trophic precursors into the aquatic ecosystem directly leads to immediate biohydrogenase reaction of increase in the number and biomass of the primary producers of organic matter. Chemical composition of water is an
important criterion for water quality assessment. Therefore, the study of the dynamics of qualitative and quantitative chemical composition of water is a priority task in determining the efficiency of wastewater treatment in bioreactors.

[1] Vasilyuk T. P. The effect of sewage treatment with a biological method using plants of the species Eichornia crassipes Martyus for different hydraulic loads. / T. P. Vasilyuk // Biotechnologia Acta. – 2009. – Т. 2. – No. 1. – S. 99–106.
[2] Use of hydrobionts of the species Eichornia crassipes for sewage treatment / T. P. Vasilyuk // Ecology of the environment and safety of life. – 2008 – No. 4. – P. 63–68.
[3] Vinberg G. G. Biological ponds in wastewater treatment practice / G. G. Vinberg, P. V. Ostapenya., T. N. Sivko, R. I. Levina, ed. Ostapenya P. V. – Minsk: “Belarus”, 1966. – 231s.
[4] Efficiency of purification process in aerotank using methods of destruction of active sludge / Yu. M. Sadova // Ecological safety. – 2011. – No. 2. – P. 87–92.

[5] Zhmur N. S. Technological and biochemical-eprocesses of wastewater treatment in structures with aerotanks. – Moscow: AKVAROS, 2003. – 512 p.
[6] Zapolsky A. K. Water supply, drainage and water quality. – K.: “Higher school”, 2005. – 671 p.
[7] Shevchenko T. A. Combined method for removing phosphorus from domestic sewage // Improving the efficiency of use of water, heat and energy resources and environmental protection: 3b. Theses of the International Science. Practice Conf. Young scientists and students. – K.: KNUBA, 2008. –
S. 40–43.
[8] Cheng B. Y., Liu T. C., Shyu G. S., Chang T. K., FangW. T. Analysis of trends in water quality: constructed wetlands in metropolitan Taipei // Water Sci. Technol. – 2011. – Vol. 64. – No. 11. – Р. 2143–2150.
[9] Seidel, K. Macrophytcs and water purification, in: Biological Control of Water Pollution. ,T. Tourbier, and R W. Pierson, eds., Pennsylvania University Press. Philadelphia. – 1996. – P. 109–122.
[10] Zimmles Y., Kirzhner F., Malkovskaja A. (2006) Application of Eichhornia crassipes and Pistia stratiotes for treatment of urban sewage in Israel. Journal of Environmental Management 81: 420–428.