<abstract xmlns="http://www.w3.org/1999/xhtml">The efficiency of ammonium nitrogen (N-NH4+) and phosphate (P-PO43−) removal from wastewater with different loads of these nutrients was evaluated using <italic>Chlamydomonas reinhardtii</italic> (Chlorophyta) and <italic>Oscillatoria neglecta</italic> (Cyanophyta/Cyanoprokaryota). In addition, functional characteristics of the microalgae under the studied conditions were determined. It was demonstrated that <italic>Ch. reinhardtii</italic> is resistant to a wide range of concentrations of inorganic nitrogen and phosphorus compounds. Microalgae actively participate in the removal of N-NH4+ from wastewater (removal efficiency of 49–63%, depending on the initial concentration). At the same time, <italic>Ch. reinhardtii</italic> showed low levels of P-PO43− removal (7–18%) from the aquatic environment. <italic>O. neglecta</italic>, unlike <italic>Ch. reinhardtii</italic>, is sensitive to excessively high concentrations of N-NH4+ (90–140 mg l−1) and P-PO43− (26–90 mg l−1). However, it is characterized by high removal efficiency for both forms of nitrogen (60–61%) and phosphorus (43–55%) at their initial concentrations of 30–50 mg l−1 and 7–14 mg l−1, respectively. Therefore, <italic>O. neglecta</italic> is best suited for use in wastewater post-treatment.</abstract>

The efficiency of ammonium nitrogen (N-NH4+) and phosphate (P-PO43−) removal from wastewater with different loads of these nutrients was evaluated using Chlamydomonas reinhardtii (Chlorophyta) and Oscillatoria neglecta (Cyanophyta/Cyanoprokaryota). In addition, functional characteristics of the microalgae under the studied conditions were determined. It was demonstrated that Ch. reinhardtii is resistant to a wide range of concentrations of inorganic nitrogen and phosphorus compounds. Microalgae actively participate in the removal of N-NH4+ from wastewater (removal efficiency of 49–63%, depending on the initial concentration). At the same time, Ch. reinhardtii showed low levels of P-PO43− removal (7–18%) from the aquatic environment. O. neglecta, unlike Ch. reinhardtii, is sensitive to excessively high concentrations of N-NH4+ (90–140 mg l−1) and P-PO43− (26–90 mg l−1). However, it is characterized by high removal efficiency for both forms of nitrogen (60–61%) and phosphorus (43–55%) at their initial concentrations of 30–50 mg l−1 and 7–14 mg l−1, respectively. Therefore, O. neglecta is best suited for use in wastewater post-treatment.

Assessment of inorganic nitrogen and phosphorus compounds removal efficiency from different types of wastewater using microalgae cultures

Department of Ecology of Aquatic Plants and Toxicology

Oceanological and Hydrobiological Studies

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The efficiency of ammonium nitrogen (N-NH4+) and phosphate (P-PO43−) removal from wastewater with different loads of these nutrients was evaluated using...

Assessment of inorganic nitrogen and phosphorus compounds removal efficiency from different types of wastewater using microalgae cultures

Article Category: Original research paper

Published Online: Mar 31, 2022

Page range: 45 - 52

Received: Aug 13, 2021

Accepted: Oct 11, 2021

DOI: https://doi.org/10.26881/oahs.2022.1.05

Keywords
wastewater treatment, ammonium nitrogen, phosphate, microalgae, growth rate, photosynthetic pigments

© 2022 Inna Nezbrytska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Assessment of inorganic nitrogen and phosphorus compounds removal efficiency from different types of wastewater using microalgae cultures

Article Category: Original research paper

Published Online: Mar 31, 2022

Page range: 45 - 52

Received: Aug 13, 2021

Accepted: Oct 11, 2021

DOI: https://doi.org/10.26881/oahs.2022.1.05

Keywordswastewater treatment, ammonium nitrogen, phosphate, microalgae, growth rate, photosynthetic pigments

© 2022 Inna Nezbrytska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
wastewater treatment, ammonium nitrogen, phosphate, microalgae, growth rate, photosynthetic pigments