The Influence of Phosphogypsum Addition on Phosphorus Release in Biochemical Treatment of Sewage Sludge
The paper is focused on the research of biochemical treatment of sewage sludge and phosphogypsum under sulphate-reducing conditions with a phosphorus release process. The theoretical foundations of the work were based on the biochemical formalization using the principles of autocatalysis of natural...
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doaj-0f1b8c874c8d4af1a0051c48067a1bb82020-11-24T21:08:00ZengMDPI AGInternational Journal of Environmental Research and Public Health1660-46012018-06-01156126910.3390/ijerph15061269ijerph15061269The Influence of Phosphogypsum Addition on Phosphorus Release in Biochemical Treatment of Sewage SludgeYelizaveta Chernysh0Magdalena Balintova1Leonid Plyatsuk2Marian Holub3Stefan Demcak4Department of Applied Ecology, Faculty of Technical Systems and Energy Efficient Technologies, Sumy State University, 2, Rymskogo-Korsakova st., 40007 Sumy, UkraineInstitute of Environmental Engineering, Faculty of Civil Engineering, Technical University of Kosice, Vysokoskolska 4, 04200 Kosice, SlovakiaDepartment of Applied Ecology, Faculty of Technical Systems and Energy Efficient Technologies, Sumy State University, 2, Rymskogo-Korsakova st., 40007 Sumy, UkraineLaboratory of Excellent Research, Faculty of Civil Engineering, Technical University of Kosice, Park Komenskeho 10/A, 04200 Kosice, SlovakiaInstitute of Environmental Engineering, Faculty of Civil Engineering, Technical University of Kosice, Vysokoskolska 4, 04200 Kosice, SlovakiaThe paper is focused on the research of biochemical treatment of sewage sludge and phosphogypsum under sulphate-reducing conditions with a phosphorus release process. The theoretical foundations of the work were based on the biochemical formalization using the principles of autocatalysis of natural systems. During the experimental research for the control of physicochemical parameters of the process spectroquantic, X-ray fluorescence analysis and other techniques were used. A schematic model of the dephosphatation process under anaerobic stabilization of sewage sludge and phosphogypsum was developed. The increase of phosphogypsum dosage had a close correlation with the release of phosphate ions. At the stimulating action of the phosphogypsum additive, a 2.5–5.0-fold increase in soluble phosphate concentration was observed. The rational dose of phosphogypsum was determined. Along with an increase the ratio of COD (Chemical Oxygen Demand)/phosphogypsum to 0.1, an increase in the phosphate ions in solution was observed. A further increase in the ratio of COD/phosphogypsum did not affect the concentration of phosphate ions in solution.http://www.mdpi.com/1660-4601/15/6/1269phosphorus compoundphosphorus-recovery technologysewage sludgephosphogypsumCOD |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yelizaveta Chernysh Magdalena Balintova Leonid Plyatsuk Marian Holub Stefan Demcak |
spellingShingle |
Yelizaveta Chernysh Magdalena Balintova Leonid Plyatsuk Marian Holub Stefan Demcak The Influence of Phosphogypsum Addition on Phosphorus Release in Biochemical Treatment of Sewage Sludge International Journal of Environmental Research and Public Health phosphorus compound phosphorus-recovery technology sewage sludge phosphogypsum COD |
author_facet |
Yelizaveta Chernysh Magdalena Balintova Leonid Plyatsuk Marian Holub Stefan Demcak |
author_sort |
Yelizaveta Chernysh |
title |
The Influence of Phosphogypsum Addition on Phosphorus Release in Biochemical Treatment of Sewage Sludge |
title_short |
The Influence of Phosphogypsum Addition on Phosphorus Release in Biochemical Treatment of Sewage Sludge |
title_full |
The Influence of Phosphogypsum Addition on Phosphorus Release in Biochemical Treatment of Sewage Sludge |
title_fullStr |
The Influence of Phosphogypsum Addition on Phosphorus Release in Biochemical Treatment of Sewage Sludge |
title_full_unstemmed |
The Influence of Phosphogypsum Addition on Phosphorus Release in Biochemical Treatment of Sewage Sludge |
title_sort |
influence of phosphogypsum addition on phosphorus release in biochemical treatment of sewage sludge |
publisher |
MDPI AG |
series |
International Journal of Environmental Research and Public Health |
issn |
1660-4601 |
publishDate |
2018-06-01 |
description |
The paper is focused on the research of biochemical treatment of sewage sludge and phosphogypsum under sulphate-reducing conditions with a phosphorus release process. The theoretical foundations of the work were based on the biochemical formalization using the principles of autocatalysis of natural systems. During the experimental research for the control of physicochemical parameters of the process spectroquantic, X-ray fluorescence analysis and other techniques were used. A schematic model of the dephosphatation process under anaerobic stabilization of sewage sludge and phosphogypsum was developed. The increase of phosphogypsum dosage had a close correlation with the release of phosphate ions. At the stimulating action of the phosphogypsum additive, a 2.5–5.0-fold increase in soluble phosphate concentration was observed. The rational dose of phosphogypsum was determined. Along with an increase the ratio of COD (Chemical Oxygen Demand)/phosphogypsum to 0.1, an increase in the phosphate ions in solution was observed. A further increase in the ratio of COD/phosphogypsum did not affect the concentration of phosphate ions in solution. |
topic |
phosphorus compound phosphorus-recovery technology sewage sludge phosphogypsum COD |
url |
http://www.mdpi.com/1660-4601/15/6/1269 |
work_keys_str_mv |
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