Akmukhanova N.R., Zayadan B.K., Bauyenova M.O., Sadvakasova A.K., Bolatkhan K., Seilbek S. Formation of structured biocenoses of higher aquatic plants and phototrophic microorganisms for application in wastewater treatment

Казахский национальный университет имени аль-Фараби, Казахстан, Алматы, *e-mail: nurziya.akmuhanova@kaznu.kz

Abstract

One of the modern methods used in the development of environmentally friendly technologies
for protecting the environment and restoring natural resources is bioremediation, which is the most
sparing method for preserving biodiversity and ensuring the sustainability of cleansing biocenoses. The
formation of this area of scientific knowledge was held in the 1990s and intensive development of ecobiotechnologies is currently taking place. The use of cyanobacteria and microalgae resistant to polluted
waters, introduction of higher aquatic plants into the purifying consortium, allows the creation of a new
integrated biotechnology for the purification and restoration of polluted water bodies.
The aim of the research was the formation of structured biocenoses, including organisms of different
taxonomic groups, for selecting optimal parameters for controlling bioremediation processes.
It was determined that a more positive effect between organisms was observed in consortia: Ankistrodesmus sp. BI-1 + Anabaena variabilis RI-5 + Pistia stratiotes and Schenedemus quadricauda B-1 +
Anabaena variabilis RI-5 + Pistia stratiotes. It was determined that during all the time of joint existence
all the components of the consortium stimulated the development of each other, the dynamics of growth
of all members of the consortium significantly exceeded the growth of these organisms in monocultures.
The obtained results indicate that the use of the HAP consortium, microalgae and cyanobacteria in
wastewater treatment in laboratory conditions is very effective in comparison with the use of plants,
microalgae and cyanobacteria separately.
Key words: microalgae, cyanobacteria, bioremediation, consortium, higher aquatic plants.