Effect of Bio-Electrochemical Treatment of Hydroponic Effluent on the Nutrient Content
This study examined the effect of bio-electrochemical treatment processes on nitrogen and phosphorus removal, but it also evaluated the impact of the treatment processes on the concentration of other nutrients present in hydroponic effluent. A bio-electrochemical reactor (BER) was used in the experi...
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MDPI AG
2022-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/19/9540 |
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| author | Kamil Łukasz Bryszewski Joanna Rodziewicz Wojciech Janczukowicz |
| author_facet | Kamil Łukasz Bryszewski Joanna Rodziewicz Wojciech Janczukowicz |
| author_sort | Kamil Łukasz Bryszewski |
| collection | DOAJ |
| description | This study examined the effect of bio-electrochemical treatment processes on nitrogen and phosphorus removal, but it also evaluated the impact of the treatment processes on the concentration of other nutrients present in hydroponic effluent. A bio-electrochemical reactor (BER) was used in the experiment to treat effluent from the hydroponic cultivation of tomatoes. It was stated that the nitrogen removal efficiency decreased with increasing current density. The study showed that an electric current density of 0.63 A/m<sup>2</sup> ensured the lowest effluent nitrate concentration. The nitrogen removal efficiency ranged from 41.6%-R1 (density of 0.63 A/m<sup>2</sup>) to 8.9%-R4 (density of 5 A/m<sup>2</sup>). Electric current density higher than 1.25 A/m<sup>2</sup> resulted in lower total nitrogen removal efficiency. The total phosphorus removal efficiency increased with increasing electric current density. The phosphorus removal efficiency was the lowest—95.1%—in the R1 reactor, whereas it was the highest in R4—99.1%. The concentration of the other elements in the effluent was determined. The content of molybdenum, boron, sulphates, and potassium did not meet the acceptable norms for discharging hydroponic effluent into the environment. The study showed that bio-electrochemical processes taking place in BER caused secondary contamination of hydroponic wastewater with molybdenum ions. |
| first_indexed | 2024-03-09T22:05:49Z |
| format | Article |
| id | doaj.art-a31bfd8d292b4bba846d1c1f391978e9 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T22:05:49Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj.art-a31bfd8d292b4bba846d1c1f391978e92023-11-23T19:41:21ZengMDPI AGApplied Sciences2076-34172022-09-011219954010.3390/app12199540Effect of Bio-Electrochemical Treatment of Hydroponic Effluent on the Nutrient ContentKamil Łukasz Bryszewski0Joanna Rodziewicz1Wojciech Janczukowicz2Department of Environment Engineering, University of Warmia and Mazury in Olsztyn, Warszawska 117a, 10-719 Olsztyn, PolandDepartment of Environment Engineering, University of Warmia and Mazury in Olsztyn, Warszawska 117a, 10-719 Olsztyn, PolandDepartment of Environment Engineering, University of Warmia and Mazury in Olsztyn, Warszawska 117a, 10-719 Olsztyn, PolandThis study examined the effect of bio-electrochemical treatment processes on nitrogen and phosphorus removal, but it also evaluated the impact of the treatment processes on the concentration of other nutrients present in hydroponic effluent. A bio-electrochemical reactor (BER) was used in the experiment to treat effluent from the hydroponic cultivation of tomatoes. It was stated that the nitrogen removal efficiency decreased with increasing current density. The study showed that an electric current density of 0.63 A/m<sup>2</sup> ensured the lowest effluent nitrate concentration. The nitrogen removal efficiency ranged from 41.6%-R1 (density of 0.63 A/m<sup>2</sup>) to 8.9%-R4 (density of 5 A/m<sup>2</sup>). Electric current density higher than 1.25 A/m<sup>2</sup> resulted in lower total nitrogen removal efficiency. The total phosphorus removal efficiency increased with increasing electric current density. The phosphorus removal efficiency was the lowest—95.1%—in the R1 reactor, whereas it was the highest in R4—99.1%. The concentration of the other elements in the effluent was determined. The content of molybdenum, boron, sulphates, and potassium did not meet the acceptable norms for discharging hydroponic effluent into the environment. The study showed that bio-electrochemical processes taking place in BER caused secondary contamination of hydroponic wastewater with molybdenum ions.https://www.mdpi.com/2076-3417/12/19/9540hydroponic effluentmacro- and micro elementsbio-electrochemical wastewater treatmentcurrent density |
| spellingShingle | Kamil Łukasz Bryszewski Joanna Rodziewicz Wojciech Janczukowicz Effect of Bio-Electrochemical Treatment of Hydroponic Effluent on the Nutrient Content Applied Sciences hydroponic effluent macro- and micro elements bio-electrochemical wastewater treatment current density |
| title | Effect of Bio-Electrochemical Treatment of Hydroponic Effluent on the Nutrient Content |
| title_full | Effect of Bio-Electrochemical Treatment of Hydroponic Effluent on the Nutrient Content |
| title_fullStr | Effect of Bio-Electrochemical Treatment of Hydroponic Effluent on the Nutrient Content |
| title_full_unstemmed | Effect of Bio-Electrochemical Treatment of Hydroponic Effluent on the Nutrient Content |
| title_short | Effect of Bio-Electrochemical Treatment of Hydroponic Effluent on the Nutrient Content |
| title_sort | effect of bio electrochemical treatment of hydroponic effluent on the nutrient content |
| topic | hydroponic effluent macro- and micro elements bio-electrochemical wastewater treatment current density |
| url | https://www.mdpi.com/2076-3417/12/19/9540 |
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