Suppression Efficiency for Dust from an Iron Ore Pile Using a Conventional Sprinkler and a Water Mist Generator
Abstract Re-suspension of iron ore dust presents a constant hazard in the working environment within steel production plants. Herein, the optimal operating parameters for maximum dust suppression efficiencies through a water mist generator and a conventional sprinkler for particulate matter (PM) ori...
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| Format: | Article |
| Language: | English |
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Springer
2022-01-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.210320 |
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| author | Yen-Yi Lee Chung-Shin Yuan Po-Hsuan Yen Justus Kavita Mutuku Chien-Er Huang Chih-Cheng Wu Po-Jen Huang |
| author_facet | Yen-Yi Lee Chung-Shin Yuan Po-Hsuan Yen Justus Kavita Mutuku Chien-Er Huang Chih-Cheng Wu Po-Jen Huang |
| author_sort | Yen-Yi Lee |
| collection | DOAJ |
| description | Abstract Re-suspension of iron ore dust presents a constant hazard in the working environment within steel production plants. Herein, the optimal operating parameters for maximum dust suppression efficiencies through a water mist generator and a conventional sprinkler for particulate matter (PM) originating from an iron ore pile measuring about 2 m in height and with a stacking angle of about 30° are investigated. The effects of operating parameters including wind velocity, spray angle, and mode of water supply on dust suppression efficiencies are evaluated. Size differentiated PM samples were collected from the upwind and downwind locations of the iron oral pile and the dust suppression efficiencies are determined. The operating parameters with the highest dust suppression efficiencies using the water mist technology are low spray angle, low wind velocity, and intermittent water supply, while those for water sprinkling technology are high spray angle, low wind velocity, and intermittent water supply. The average dust suppression efficiencies for Total Suspended Particles (TSP), PM10, and PM2.5 for the mist generators are 80.9%, 77.9%, and 76.9%, respectively, whereas those for the conventional sprinklers are 76.4%, 72.9%, and 72.7%, respectively. For the surfactant to water ratios of 0.024, 0.022 and no surfactant, the ratio of 0.024 had the highest dust suppression efficiencies for TSP, PM10, and PM2.5 at 90.9%, 89.5%, and 89.0%, respectively. Insights from this investigation can be applied to optimize the dust suppression methods to ensure economical consumption of water and energy. |
| format | Article |
| id | doaj-art-d9b8715be96346f1a921285bfa679453 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-d9b8715be96346f1a921285bfa6794532025-02-09T12:18:44ZengSpringerAerosol and Air Quality Research1680-85842071-14092022-01-0122211610.4209/aaqr.210320Suppression Efficiency for Dust from an Iron Ore Pile Using a Conventional Sprinkler and a Water Mist GeneratorYen-Yi Lee0Chung-Shin Yuan1Po-Hsuan Yen2Justus Kavita Mutuku3Chien-Er Huang4Chih-Cheng Wu5Po-Jen Huang6Super micro mass research and technology center, Cheng Shiu UniversityInstitute of Environmental Engineering, National Sun Yat-sen UniversityInstitute of Environmental Engineering, National Sun Yat-sen UniversitySuper micro mass research and technology center, Cheng Shiu UniversitySuper micro mass research and technology center, Cheng Shiu UniversityEnvironmental Bioengineering and Chemical Analysis Section, New Materials Research and Development Department, China Steel CorporationEnvironmental Bioengineering and Chemical Analysis Section, New Materials Research and Development Department, China Steel CorporationAbstract Re-suspension of iron ore dust presents a constant hazard in the working environment within steel production plants. Herein, the optimal operating parameters for maximum dust suppression efficiencies through a water mist generator and a conventional sprinkler for particulate matter (PM) originating from an iron ore pile measuring about 2 m in height and with a stacking angle of about 30° are investigated. The effects of operating parameters including wind velocity, spray angle, and mode of water supply on dust suppression efficiencies are evaluated. Size differentiated PM samples were collected from the upwind and downwind locations of the iron oral pile and the dust suppression efficiencies are determined. The operating parameters with the highest dust suppression efficiencies using the water mist technology are low spray angle, low wind velocity, and intermittent water supply, while those for water sprinkling technology are high spray angle, low wind velocity, and intermittent water supply. The average dust suppression efficiencies for Total Suspended Particles (TSP), PM10, and PM2.5 for the mist generators are 80.9%, 77.9%, and 76.9%, respectively, whereas those for the conventional sprinklers are 76.4%, 72.9%, and 72.7%, respectively. For the surfactant to water ratios of 0.024, 0.022 and no surfactant, the ratio of 0.024 had the highest dust suppression efficiencies for TSP, PM10, and PM2.5 at 90.9%, 89.5%, and 89.0%, respectively. Insights from this investigation can be applied to optimize the dust suppression methods to ensure economical consumption of water and energy.https://doi.org/10.4209/aaqr.210320Iron ore pileParticulate matterWater mist generator and conventional sprinklerSurfactantDust suppression efficiency |
| spellingShingle | Yen-Yi Lee Chung-Shin Yuan Po-Hsuan Yen Justus Kavita Mutuku Chien-Er Huang Chih-Cheng Wu Po-Jen Huang Suppression Efficiency for Dust from an Iron Ore Pile Using a Conventional Sprinkler and a Water Mist Generator Aerosol and Air Quality Research Iron ore pile Particulate matter Water mist generator and conventional sprinkler Surfactant Dust suppression efficiency |
| title | Suppression Efficiency for Dust from an Iron Ore Pile Using a Conventional Sprinkler and a Water Mist Generator |
| title_full | Suppression Efficiency for Dust from an Iron Ore Pile Using a Conventional Sprinkler and a Water Mist Generator |
| title_fullStr | Suppression Efficiency for Dust from an Iron Ore Pile Using a Conventional Sprinkler and a Water Mist Generator |
| title_full_unstemmed | Suppression Efficiency for Dust from an Iron Ore Pile Using a Conventional Sprinkler and a Water Mist Generator |
| title_short | Suppression Efficiency for Dust from an Iron Ore Pile Using a Conventional Sprinkler and a Water Mist Generator |
| title_sort | suppression efficiency for dust from an iron ore pile using a conventional sprinkler and a water mist generator |
| topic | Iron ore pile Particulate matter Water mist generator and conventional sprinkler Surfactant Dust suppression efficiency |
| url | https://doi.org/10.4209/aaqr.210320 |
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