Efficiency and reliability of sewage purification in long-term exploitation of the municipal wastewater treatment plant with activated sludge and hydroponic system
The aim of the work was to analyze the effi ciency and reliability of pollutants removal (total suspended solids – TSS, BOD5, COD) in a collective wastewater treatment plant with activated sludge and hydroponic lagoon during its long term operation. The tested object was designed to treat wastewater...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2020-09-01
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| Series: | Archives of Environmental Protection |
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| Online Access: | https://journals.pan.pl/Content/117971/Archives%20vol%2046%20no%203_30_41.pdf |
| _version_ | 1797394332517400576 |
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| author | Karolina Jóźwiakowska Michał Marzec |
| author_facet | Karolina Jóźwiakowska Michał Marzec |
| author_sort | Karolina Jóźwiakowska |
| collection | DOAJ |
| description | The aim of the work was to analyze the effi ciency and reliability of pollutants removal (total suspended solids – TSS, BOD5, COD) in a collective wastewater treatment plant with activated sludge and hydroponic lagoon during its long term operation. The tested object was designed to treat wastewater in flowing through the sewerage system and wastewater delivered by the septic truck. The projected capacity of the treatment plant was 1200 m3∙d-1. The technological system for wastewater treatment consisted of a mechanical part, a flowing biological reactor working according to the BARDENPHO process, a secondary settling tank and a hydroponic lagoon. The efficiency and reliability of pollutants removal in the analyzed treatment plant were assessed on the basis of the data concerning influent and effluent wastewater collected during the years 2011–2018. On the basis of the measurements results, there were determined characteristic values of the selected pollution indicators in wastewater and the average efficiency of pollutants removal. The technological reliability of the wastewater treatment plant was assessed for the basic pollution parameters (BOD5, COD, TSS) in accordance with the elements of the Weibull’s reliability theory, with regard to normative values of the indicators specified in the Regulation of the Minister of Environment. The analysis was carried out using the Statistica 13.1 software. It was proved that in the wastewater treatment plant with an activated sludge and hydroponic lagoon the level of organic pollutants removal expressed by BOD5 was on average 99.5%, COD – 98.1% and TSS – 99.4%. The technological reliability of the system was 100% in terms of the removal of pollutants from the basic group, which means that during the long term operation (8 years) it provided failure-free operation and guaranteed the fulfillment of the requirements that can be found in the Polish law regulations concerning the analyzed pollutants. |
| first_indexed | 2024-03-09T00:18:08Z |
| format | Article |
| id | doaj.art-394c7a777b794c3a8b83e8f532a8e651 |
| institution | Directory Open Access Journal |
| issn | 2083-4772 2083-4810 |
| language | English |
| last_indexed | 2024-03-09T00:18:08Z |
| publishDate | 2020-09-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Environmental Protection |
| spelling | doaj.art-394c7a777b794c3a8b83e8f532a8e6512023-12-12T06:43:38ZengPolish Academy of SciencesArchives of Environmental Protection2083-47722083-48102020-09-01vol. 46No 33041https://doi.org/10.24425/aep.2020.134533Efficiency and reliability of sewage purification in long-term exploitation of the municipal wastewater treatment plant with activated sludge and hydroponic systemKarolina Jóźwiakowska0Michał Marzec1Student, Faculty of Civil and Environmental Engineering, Warsaw University of Life Sciences, PolandDepartment of Environmental Engineering and Geodesy, University of Life Sciences in Lublin, PolandThe aim of the work was to analyze the effi ciency and reliability of pollutants removal (total suspended solids – TSS, BOD5, COD) in a collective wastewater treatment plant with activated sludge and hydroponic lagoon during its long term operation. The tested object was designed to treat wastewater in flowing through the sewerage system and wastewater delivered by the septic truck. The projected capacity of the treatment plant was 1200 m3∙d-1. The technological system for wastewater treatment consisted of a mechanical part, a flowing biological reactor working according to the BARDENPHO process, a secondary settling tank and a hydroponic lagoon. The efficiency and reliability of pollutants removal in the analyzed treatment plant were assessed on the basis of the data concerning influent and effluent wastewater collected during the years 2011–2018. On the basis of the measurements results, there were determined characteristic values of the selected pollution indicators in wastewater and the average efficiency of pollutants removal. The technological reliability of the wastewater treatment plant was assessed for the basic pollution parameters (BOD5, COD, TSS) in accordance with the elements of the Weibull’s reliability theory, with regard to normative values of the indicators specified in the Regulation of the Minister of Environment. The analysis was carried out using the Statistica 13.1 software. It was proved that in the wastewater treatment plant with an activated sludge and hydroponic lagoon the level of organic pollutants removal expressed by BOD5 was on average 99.5%, COD – 98.1% and TSS – 99.4%. The technological reliability of the system was 100% in terms of the removal of pollutants from the basic group, which means that during the long term operation (8 years) it provided failure-free operation and guaranteed the fulfillment of the requirements that can be found in the Polish law regulations concerning the analyzed pollutants.https://journals.pan.pl/Content/117971/Archives%20vol%2046%20no%203_30_41.pdfwastewater treatmentactivated sludgehydroponic systemefficiency and reliability of operationweibull’s reliability theory |
| spellingShingle | Karolina Jóźwiakowska Michał Marzec Efficiency and reliability of sewage purification in long-term exploitation of the municipal wastewater treatment plant with activated sludge and hydroponic system Archives of Environmental Protection wastewater treatment activated sludge hydroponic system efficiency and reliability of operation weibull’s reliability theory |
| title | Efficiency and reliability of sewage purification in long-term exploitation of the municipal wastewater treatment plant with activated sludge and hydroponic system |
| title_full | Efficiency and reliability of sewage purification in long-term exploitation of the municipal wastewater treatment plant with activated sludge and hydroponic system |
| title_fullStr | Efficiency and reliability of sewage purification in long-term exploitation of the municipal wastewater treatment plant with activated sludge and hydroponic system |
| title_full_unstemmed | Efficiency and reliability of sewage purification in long-term exploitation of the municipal wastewater treatment plant with activated sludge and hydroponic system |
| title_short | Efficiency and reliability of sewage purification in long-term exploitation of the municipal wastewater treatment plant with activated sludge and hydroponic system |
| title_sort | efficiency and reliability of sewage purification in long term exploitation of the municipal wastewater treatment plant with activated sludge and hydroponic system |
| topic | wastewater treatment activated sludge hydroponic system efficiency and reliability of operation weibull’s reliability theory |
| url | https://journals.pan.pl/Content/117971/Archives%20vol%2046%20no%203_30_41.pdf |
| work_keys_str_mv | AT karolinajozwiakowska efficiencyandreliabilityofsewagepurificationinlongtermexploitationofthemunicipalwastewatertreatmentplantwithactivatedsludgeandhydroponicsystem AT michałmarzec efficiencyandreliabilityofsewagepurificationinlongtermexploitationofthemunicipalwastewatertreatmentplantwithactivatedsludgeandhydroponicsystem |