Feasibility of treating the produced sludge in municipal wastewater treatment plant using ozonation method
Background and Objective: Wastewater treatment and stabilization always imposes costs and consequently a lot of energy on wastewater treatment plants. To achieve the purification and stabilization of as much sludge as possible, breaking complex components into simpler components is considered a crit...
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| Format: | Article |
| Language: | fas |
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Tehran University of Medical Sciences
2021-09-01
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| Series: | سلامت و محیط |
| Subjects: | |
| Online Access: | http://ijhe.tums.ac.ir/article-1-6560-en.html |
| _version_ | 1798034422622060544 |
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| author | Mohsen Ansari Mahdi Farzadkia |
| author_facet | Mohsen Ansari Mahdi Farzadkia |
| author_sort | Mohsen Ansari |
| collection | DOAJ |
| description | Background and Objective: Wastewater treatment and stabilization always imposes costs and consequently a lot of energy on wastewater treatment plants. To achieve the purification and stabilization of as much sludge as possible, breaking complex components into simpler components is considered a critical step. Therefore, this study aimed to evaluate the feasibility of treating the produced sludge in the municipal wastewater treatment plant using ozonation method.
Materials and Methods: In this study, sludge was obtained from the return line of activated sludge from the wastewater treatment plant in the south of Tehran. An ozonation generator with a discharge rate of 3 L/min and an ozone concentration of 40-35 mg/L was discharged to the reactor and the residual ozone concentration was measured by iodometric method. Finally, the total suspended solids and volatile, soluble chemical oxygen demand, total organic carbon, and biochemical oxygen demand during ozonation processes were measured using the Standard Method.
Results: The results of this study showed that the amount of TSS and VSS in the activated return sludge decreased from 4060 to 2100 mg/L and from 3300 to 1850 mg/L during the ozonation process, respectively. However, SCOD, TOC, and SBOD had an upward trend of about 18, 11.7, and 14 times in the same reaction time, respectively.
Conclusion: According to the results of this study, it can be concluded that the ozonation system can be proposed as a suitable process for the decomposition of sludge produced in wastewater treatment plants and increasing the biodegradability of these sludges. |
| first_indexed | 2024-04-11T20:44:09Z |
| format | Article |
| id | doaj.art-14372292df194b9bb2639729f6ee53c7 |
| institution | Directory Open Access Journal |
| issn | 2008-2029 2008-3718 |
| language | fas |
| last_indexed | 2024-04-11T20:44:09Z |
| publishDate | 2021-09-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | سلامت و محیط |
| spelling | doaj.art-14372292df194b9bb2639729f6ee53c72022-12-22T04:04:06ZfasTehran University of Medical Sciencesسلامت و محیط2008-20292008-37182021-09-01142351362Feasibility of treating the produced sludge in municipal wastewater treatment plant using ozonation methodMohsen Ansari0Mahdi Farzadkia1 Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran AND Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran Background and Objective: Wastewater treatment and stabilization always imposes costs and consequently a lot of energy on wastewater treatment plants. To achieve the purification and stabilization of as much sludge as possible, breaking complex components into simpler components is considered a critical step. Therefore, this study aimed to evaluate the feasibility of treating the produced sludge in the municipal wastewater treatment plant using ozonation method. Materials and Methods: In this study, sludge was obtained from the return line of activated sludge from the wastewater treatment plant in the south of Tehran. An ozonation generator with a discharge rate of 3 L/min and an ozone concentration of 40-35 mg/L was discharged to the reactor and the residual ozone concentration was measured by iodometric method. Finally, the total suspended solids and volatile, soluble chemical oxygen demand, total organic carbon, and biochemical oxygen demand during ozonation processes were measured using the Standard Method. Results: The results of this study showed that the amount of TSS and VSS in the activated return sludge decreased from 4060 to 2100 mg/L and from 3300 to 1850 mg/L during the ozonation process, respectively. However, SCOD, TOC, and SBOD had an upward trend of about 18, 11.7, and 14 times in the same reaction time, respectively. Conclusion: According to the results of this study, it can be concluded that the ozonation system can be proposed as a suitable process for the decomposition of sludge produced in wastewater treatment plants and increasing the biodegradability of these sludges.http://ijhe.tums.ac.ir/article-1-6560-en.htmlozonationsludge treatmentmunicipal wastewater treatment plant |
| spellingShingle | Mohsen Ansari Mahdi Farzadkia Feasibility of treating the produced sludge in municipal wastewater treatment plant using ozonation method سلامت و محیط ozonation sludge treatment municipal wastewater treatment plant |
| title | Feasibility of treating the produced sludge in municipal wastewater treatment plant using ozonation method |
| title_full | Feasibility of treating the produced sludge in municipal wastewater treatment plant using ozonation method |
| title_fullStr | Feasibility of treating the produced sludge in municipal wastewater treatment plant using ozonation method |
| title_full_unstemmed | Feasibility of treating the produced sludge in municipal wastewater treatment plant using ozonation method |
| title_short | Feasibility of treating the produced sludge in municipal wastewater treatment plant using ozonation method |
| title_sort | feasibility of treating the produced sludge in municipal wastewater treatment plant using ozonation method |
| topic | ozonation sludge treatment municipal wastewater treatment plant |
| url | http://ijhe.tums.ac.ir/article-1-6560-en.html |
| work_keys_str_mv | AT mohsenansari feasibilityoftreatingtheproducedsludgeinmunicipalwastewatertreatmentplantusingozonationmethod AT mahdifarzadkia feasibilityoftreatingtheproducedsludgeinmunicipalwastewatertreatmentplantusingozonationmethod |