The ozonation effect on flocculation and polymer consumption reduction in the hybrid treatment of Iran Central iron ore companies' effluent: a cost–benefit study
Abstract Iran's most important iron ore mine is located in the central region, and because of the water shortage in this area, the need to reuse the effluent from this mine is essential. On the other hand, there are no suitable conditions for treating large effluent volumes in iron mine in cent...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-12-01
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| Series: | Applied Water Science |
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| Online Access: | https://doi.org/10.1007/s13201-022-01853-7 |
| _version_ | 1797973507046375424 |
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| author | Mahrokh Jalili Fariba Abbasi Arash Dalvand Hamed Fatahi Bafghi Ali Asghar Ebrahimi |
| author_facet | Mahrokh Jalili Fariba Abbasi Arash Dalvand Hamed Fatahi Bafghi Ali Asghar Ebrahimi |
| author_sort | Mahrokh Jalili |
| collection | DOAJ |
| description | Abstract Iran's most important iron ore mine is located in the central region, and because of the water shortage in this area, the need to reuse the effluent from this mine is essential. On the other hand, there are no suitable conditions for treating large effluent volumes in iron mine in central Iran. For this reason, produced effluent should be reduced and returned to the consumption cycle by using appropriate technology. This study aimed to investigate the ozonation/lime effect on polymer consumption reduction and evaluate the treatment and economic efficiency compared to the currently used treatment method (coagulation-flocculation without ozonation/lime). The use of ozonation along with the coagulation and flocculation process has been an effective factor in reducing all the studied indicators, which has been a much more significant reduction effect for turbidity (95%), decreasing from 374-350NTU in the non-ozonation process to 110-160NTU, and Chemical oxygen demand (37%). In addition to increasing the treatment efficiency, the hybrid ozonation/coagulation and flocculation process reduced operation costs. The ozonation process caused the high-level conversion of Fe2+ and Al2+ to Fe3+ and Al3+ (> 90%), thus it improved wastewater treatment and increased cost benefit. The hybrid process was affected in improving the effluent quality and reducing the produced sludge volume. The ozonation process caused sludge volume reduction or has photocatalytic effect on it. It effected the micro-sized bubbles production reduction in sludge volume unit. However, estimating the cost–benefit of using this method can be beneficial in making the final decision on whether to use it or not. |
| first_indexed | 2024-04-11T04:05:01Z |
| format | Article |
| id | doaj.art-446252092ec9406bb2d55d7368ac425e |
| institution | Directory Open Access Journal |
| issn | 2190-5487 2190-5495 |
| language | English |
| last_indexed | 2024-04-11T04:05:01Z |
| publishDate | 2022-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Applied Water Science |
| spelling | doaj.art-446252092ec9406bb2d55d7368ac425e2023-01-01T12:24:45ZengSpringerOpenApplied Water Science2190-54872190-54952022-12-0113211110.1007/s13201-022-01853-7The ozonation effect on flocculation and polymer consumption reduction in the hybrid treatment of Iran Central iron ore companies' effluent: a cost–benefit studyMahrokh Jalili0Fariba Abbasi1Arash Dalvand2Hamed Fatahi Bafghi3Ali Asghar Ebrahimi4Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical SciencesDepartment of Environmental Health Engineering, Shiraz University of Medical ScienceEnvironmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical SciencesMeybod Branch, Islamic Azad UniversityEnvironmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical SciencesAbstract Iran's most important iron ore mine is located in the central region, and because of the water shortage in this area, the need to reuse the effluent from this mine is essential. On the other hand, there are no suitable conditions for treating large effluent volumes in iron mine in central Iran. For this reason, produced effluent should be reduced and returned to the consumption cycle by using appropriate technology. This study aimed to investigate the ozonation/lime effect on polymer consumption reduction and evaluate the treatment and economic efficiency compared to the currently used treatment method (coagulation-flocculation without ozonation/lime). The use of ozonation along with the coagulation and flocculation process has been an effective factor in reducing all the studied indicators, which has been a much more significant reduction effect for turbidity (95%), decreasing from 374-350NTU in the non-ozonation process to 110-160NTU, and Chemical oxygen demand (37%). In addition to increasing the treatment efficiency, the hybrid ozonation/coagulation and flocculation process reduced operation costs. The ozonation process caused the high-level conversion of Fe2+ and Al2+ to Fe3+ and Al3+ (> 90%), thus it improved wastewater treatment and increased cost benefit. The hybrid process was affected in improving the effluent quality and reducing the produced sludge volume. The ozonation process caused sludge volume reduction or has photocatalytic effect on it. It effected the micro-sized bubbles production reduction in sludge volume unit. However, estimating the cost–benefit of using this method can be beneficial in making the final decision on whether to use it or not.https://doi.org/10.1007/s13201-022-01853-7Wastewater treatmentWater reuseSustainabilityCoagulationFlocculation |
| spellingShingle | Mahrokh Jalili Fariba Abbasi Arash Dalvand Hamed Fatahi Bafghi Ali Asghar Ebrahimi The ozonation effect on flocculation and polymer consumption reduction in the hybrid treatment of Iran Central iron ore companies' effluent: a cost–benefit study Applied Water Science Wastewater treatment Water reuse Sustainability Coagulation Flocculation |
| title | The ozonation effect on flocculation and polymer consumption reduction in the hybrid treatment of Iran Central iron ore companies' effluent: a cost–benefit study |
| title_full | The ozonation effect on flocculation and polymer consumption reduction in the hybrid treatment of Iran Central iron ore companies' effluent: a cost–benefit study |
| title_fullStr | The ozonation effect on flocculation and polymer consumption reduction in the hybrid treatment of Iran Central iron ore companies' effluent: a cost–benefit study |
| title_full_unstemmed | The ozonation effect on flocculation and polymer consumption reduction in the hybrid treatment of Iran Central iron ore companies' effluent: a cost–benefit study |
| title_short | The ozonation effect on flocculation and polymer consumption reduction in the hybrid treatment of Iran Central iron ore companies' effluent: a cost–benefit study |
| title_sort | ozonation effect on flocculation and polymer consumption reduction in the hybrid treatment of iran central iron ore companies effluent a cost benefit study |
| topic | Wastewater treatment Water reuse Sustainability Coagulation Flocculation |
| url | https://doi.org/10.1007/s13201-022-01853-7 |
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