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

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

Oceanological and Hydrobiological Studies

Volume 51 (2022): Issue 1 (March 2022)

By: Inna Nezbrytska, Sergii Shamanskyi, Lesia Pavliukh and Galina Kharchenko

Open Access

|Mar 2022

Figures & Tables

Changes in dry weight of Chlamydomonas reinhardtii (A) and Oscillatoria neglecta (B) during their cultivation in different types of wastewater: 1 – 30 mg N-NH4+ l−1 + 7 mg P-PO43− l−1; 2 – 50 mg N-NH4+ l−1 + 14 mg P-PO43− l−1; 3 – 90 mg N-NH4+ l−1 + 26 mg P-PO43− l−1; 4 – 140 mg N-NH4+l−1 + 41 mg P-PO43− l−1.

Concentrations of N-NH4+ and P-PO43− in wastewater

Variant of the experiment	Initial concentration, mg l⁻¹
Variant of the experiment	N-NH₄⁺	P-PO₄³⁻
1	30.00 ± 1.12	7.00 ± 0.18
2	50.00 ± 2.25	14.00 ± 0.56
3	90.00 ± 2.58	26.00 ± 0.47
4	140.00 ± 2.68	41.00 ± 0.67

Changes in the content of photosynthetic pigments in Chlamydomonas reinhardtii, M ± SD

Experiment variant	Chlorophyll a, mg g⁻¹ DW		Carotenoids, mg g⁻¹ DW
Experiment variant	0 days	14 days	0 days	14 days
1	4.89 ± 0.25	8.66 ± 0.53	1.08 ± 0.04	2.17 ± 0.10
2	4.89 ± 0.25	9.01 ± 0.45	1.08 ± 0.04	2.22 ± 0.11
3	4.89 ± 0.25	10.47 ± 0.58	1.08 ± 0.04	2.48 ± 0.11
4	4.89 ± 0.25	14.89 ± 0.66	1.08 ± 0.04	3.50 ± 0.20

Final concentration of nutrients in wastewater (mg l−1) during the microalgae cultivation period, M ± SD

Experiment variant	Chlamydomonas reinhardtii		Oscillatoria neglecta
Experiment variant	N	P	N	P
1	11.00 ± 0.25	5.70 ± 0.13	12.00 ± 0.50	3.15 ± 0.11
2	20.03 ± 1.00	13.00 ± 0.36	19.50 ± 1.21	8.00 ± 0.44
3	40.00 ± 2.50	24.00 ± 1.48	62.00 ± 3.45	19.30 ± 0.82
4	71.00 ± 2.25	38.00 ± 1.66	168.10 ± 5.40	50.00 ± 2.55

Changes in the content of photosynthetic pigments in Oscillatoria neglecta, M ± SD

Experiment variant	Chlorophyll a, mg g⁻¹ DW		Carotenoids, mg g⁻¹ DW
Experiment variant	0 days	14 days	0 days	14 days
1	4.00 ± 0.12	7.00 ± 0.33	0.62 ± 0.02	2.40 ± 0.09
2	4.00 ± 0.12	6.76 ± 0.24	0.62 ± 0.02	2.10 ± 0.10
3	4.00 ± 0.12	4.60 ± 0.16	0.62 ± 0.02	1.12 ± 0.04
4	4.00 ± 0.12	1.03 ± 0.04	0.62 ± 0.02	0.47 ± 0.01

DOI: https://doi.org/10.26881/oahs.2022.1.05 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X

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Language: English

Page range: 45 - 52

Submitted on: Aug 13, 2021

Accepted on: Oct 11, 2021

Published on: Mar 31, 2022

Published by: University of Gdańsk

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

wastewater treatment,

ammonium nitrogen,

photosynthetic pigments

Related subjects:

Chemistry, other,

Geosciences, other,

Life sciences, other

© 2022 Inna Nezbrytska, Sergii Shamanskyi, Lesia Pavliukh, Galina Kharchenko, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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