Abstract
Natural water is a decisive source on the road to a persistent future. As a result of human neglect of the environment, water is increasingly polluted, which has a negative impact on both animals and humans. To protect aquatic basins, methods have been developed for the treatment of polluted waters. The 21-day pollination of the polluted water treatment of Bâc proved the high utility of the algae, Chaetomorpha sp. and improving water quality by reducing NH4 + ions. At the end of the experiment, the bioavailability was found to be due to the assimilation of nutrients and considerably increases algae biomass, which can be used to create bio-fertilizers.

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