The Impact of Different Powdered Mineral Materials on Selected Properties of Aerobic Granular Sludge
This study aimed to evaluate and compare the physical, chemical and biological properties of aerobic granular sludge from reactors with the addition of different powdered mineral materials. These properties have a significant impact on the efficiency of systems in which the biomass in granular form...
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MDPI AG
2020-01-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/25/2/386 |
| _version_ | 1811333478944342016 |
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| author | Joanna Czarnota Adam Masłoń Monika Zdeb Grzegorz Łagód |
| author_facet | Joanna Czarnota Adam Masłoń Monika Zdeb Grzegorz Łagód |
| author_sort | Joanna Czarnota |
| collection | DOAJ |
| description | This study aimed to evaluate and compare the physical, chemical and biological properties of aerobic granular sludge from reactors with the addition of different powdered mineral materials. These properties have a significant impact on the efficiency of systems in which the biomass in granular form is used. Four identical granular sequencing batch reactors (GSBRs) were adopted for the research performed on a laboratory scale (R1—control reactor; R2, R3 and R4—with materials, PK, PG and PL respectively). The results indicate that the addition of powdered mineral materials improved the properties of biomass in reactors. The SVI<sub>5</sub>/SVI<sub>30</sub> ratio values were significantly lower in the reactors with added materials (approx. 1.3 ± 0.3). The mean values of the sludge volume index at 30 min were the lowest in the R2 (39.8 ± 8.6 mL/g) and R4 (32.8 ± 10.7 mL/g) reactors. The settling velocity of biomass was the highest in the R2 reactor (15.4 ± 6.1 m/h). In the early days of the study, the highest extracellular polymeric substances (EPS) content was found in the biomass from the reactors to which the materials with higher Ca and Mg content were added (380.18−598.30 mg/g MLVSS). The rate of specific oxygen uptake (SOUR) by biomass indicated an insufficient biomass content in the R1 reactor—to 7.85 mg O<sub>2</sub>/(g MLVSS∙h)—while in the reactors with materials, the SOUR values were at the higher levels. |
| first_indexed | 2024-04-13T16:53:26Z |
| format | Article |
| id | doaj.art-d2efce35cdab4aa8a6dd772f69931fbf |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-04-13T16:53:26Z |
| publishDate | 2020-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-d2efce35cdab4aa8a6dd772f69931fbf2022-12-22T02:38:53ZengMDPI AGMolecules1420-30492020-01-0125238610.3390/molecules25020386molecules25020386The Impact of Different Powdered Mineral Materials on Selected Properties of Aerobic Granular SludgeJoanna Czarnota0Adam Masłoń1Monika Zdeb2Grzegorz Łagód3Department of Environmental Engineering and Chemistry, Rzeszow University of Technology, 6 Powstańców Warszawy Av, 35-959 Rzeszów, PolandDepartment of Environmental Engineering and Chemistry, Rzeszow University of Technology, 6 Powstańców Warszawy Av, 35-959 Rzeszów, PolandDepartment of Water Purification and Protection, Rzeszow University of Technology, 6 Powstańców Warszawy Av, 35-959 Rzeszów, PolandFaculty of Environmental Engineering, Lublin University of Technology, Nadbystrzycka 40B, 20-618 Lublin, PolandThis study aimed to evaluate and compare the physical, chemical and biological properties of aerobic granular sludge from reactors with the addition of different powdered mineral materials. These properties have a significant impact on the efficiency of systems in which the biomass in granular form is used. Four identical granular sequencing batch reactors (GSBRs) were adopted for the research performed on a laboratory scale (R1—control reactor; R2, R3 and R4—with materials, PK, PG and PL respectively). The results indicate that the addition of powdered mineral materials improved the properties of biomass in reactors. The SVI<sub>5</sub>/SVI<sub>30</sub> ratio values were significantly lower in the reactors with added materials (approx. 1.3 ± 0.3). The mean values of the sludge volume index at 30 min were the lowest in the R2 (39.8 ± 8.6 mL/g) and R4 (32.8 ± 10.7 mL/g) reactors. The settling velocity of biomass was the highest in the R2 reactor (15.4 ± 6.1 m/h). In the early days of the study, the highest extracellular polymeric substances (EPS) content was found in the biomass from the reactors to which the materials with higher Ca and Mg content were added (380.18−598.30 mg/g MLVSS). The rate of specific oxygen uptake (SOUR) by biomass indicated an insufficient biomass content in the R1 reactor—to 7.85 mg O<sub>2</sub>/(g MLVSS∙h)—while in the reactors with materials, the SOUR values were at the higher levels.https://www.mdpi.com/1420-3049/25/2/386aerobic granular sludgenew wastewater treatment technologyphysical and chemical properties of granulesbiological propertiespowdered mineral materials |
| spellingShingle | Joanna Czarnota Adam Masłoń Monika Zdeb Grzegorz Łagód The Impact of Different Powdered Mineral Materials on Selected Properties of Aerobic Granular Sludge Molecules aerobic granular sludge new wastewater treatment technology physical and chemical properties of granules biological properties powdered mineral materials |
| title | The Impact of Different Powdered Mineral Materials on Selected Properties of Aerobic Granular Sludge |
| title_full | The Impact of Different Powdered Mineral Materials on Selected Properties of Aerobic Granular Sludge |
| title_fullStr | The Impact of Different Powdered Mineral Materials on Selected Properties of Aerobic Granular Sludge |
| title_full_unstemmed | The Impact of Different Powdered Mineral Materials on Selected Properties of Aerobic Granular Sludge |
| title_short | The Impact of Different Powdered Mineral Materials on Selected Properties of Aerobic Granular Sludge |
| title_sort | impact of different powdered mineral materials on selected properties of aerobic granular sludge |
| topic | aerobic granular sludge new wastewater treatment technology physical and chemical properties of granules biological properties powdered mineral materials |
| url | https://www.mdpi.com/1420-3049/25/2/386 |
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