INCREASING REPRODUCTION OF Azolla AQUATIC PLANTS IN THE CLIMATE CONDITIONS OF KHOREZM REGION AND ..

Currently, the most common and critical concerns are the preservation of water and water basins from various pollutants. The development of methods for the purification of wastewater in towns, industrial enterprises, and agricultural production, as well as their application in the national economy, are seen as pressing challenges for modern science. The methods of scientific and practical significance of laboratory propagation of conditioned Azolla plants in the conditions of the Khorezm area, as well as their use in biological wastewater treatment, are discussed in this article. Separated from domestic enterprises, scientific research was conducted in the sewage of Urgench, Khorezm area. When the physicochemical composition of wastewater in the pond where the azole plant is grown was studied experimentally, the water temperature rose from 26.5°C to 33.8°C, the water environment increased from acidity to alkalinity (6.7-.7.4), the colour changed from yellow to colourless, the odour vanished, the amount of suspended solids (125.5-92.5) decreased, and the amount of oxygen increased. The amount of O2 in the oxidation process decreased from 139 to 48.9 mg/l, and the amount of ammonia in the oxidation process decreased from 9.0 to 3.8 mg/l, as well as the loss of nitrites, nitrates, and sulphates decreased from 188.0-87.0 mg/l and chlorides decreased from 117.0-84.0 mg/l.

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