Multifaceted Surface Analysis of Municipal Solid Waste Incineration Fly Ash by Water Repellent Treatment with Fatty Acid
In this study, we aimed to conduct a multifaceted surface analysis of water repellent-treated municipal solid waste incineration (MSWI) fly ash to determine the suppression mechanism of fatty acid elution. The surface of water repellent-treated MSWI fly ash was analyzed using scanning electron micro...
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MDPI AG
2024-12-01
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| Series: | Waste |
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| Online Access: | https://www.mdpi.com/2813-0391/2/4/28 |
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| author | Taiga Kaseda Hibiki Shirata Yuya Koike |
| author_facet | Taiga Kaseda Hibiki Shirata Yuya Koike |
| author_sort | Taiga Kaseda |
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| description | In this study, we aimed to conduct a multifaceted surface analysis of water repellent-treated municipal solid waste incineration (MSWI) fly ash to determine the suppression mechanism of fatty acid elution. The surface of water repellent-treated MSWI fly ash was analyzed using scanning electron microscopy, Fourier-transform infrared spectroscopy, and X-ray diffraction analyses. Scanning electron microscopy revealed the absence of needle-shaped crystals but distinct particle agglomeration in the water repellent-treated fly ash. Fourier-transform infrared spectroscopy revealed that the water repellent treatment caused fatty acids to form esters with aluminosilicates in the MSWI fly ash. Crystalline phase analysis of the water repellent-treated fly ash before and after the leaching test via X-ray diffraction revealed the presence of fatty acids on the fly ash surface and retention of the fatty acid coating. Overall, the multifaceted surface analysis revealed that water repellent treatment suppressed heavy metal elution by covering the surface of MSWI fly ash with hydrophobic groups. |
| format | Article |
| id | doaj-art-f48a637ac89e476a99e5ba26eaf320ba |
| institution | OA Journals |
| issn | 2813-0391 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
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| series | Waste |
| spelling | doaj-art-f48a637ac89e476a99e5ba26eaf320ba2025-08-20T02:01:19ZengMDPI AGWaste2813-03912024-12-012452053310.3390/waste2040028Multifaceted Surface Analysis of Municipal Solid Waste Incineration Fly Ash by Water Repellent Treatment with Fatty AcidTaiga Kaseda0Hibiki Shirata1Yuya Koike2Applied Chemistry Course, Graduate School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki 214-8571, Kanagawa, JapanApplied Chemistry Course, Graduate School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki 214-8571, Kanagawa, JapanApplied Chemistry Course, Graduate School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki 214-8571, Kanagawa, JapanIn this study, we aimed to conduct a multifaceted surface analysis of water repellent-treated municipal solid waste incineration (MSWI) fly ash to determine the suppression mechanism of fatty acid elution. The surface of water repellent-treated MSWI fly ash was analyzed using scanning electron microscopy, Fourier-transform infrared spectroscopy, and X-ray diffraction analyses. Scanning electron microscopy revealed the absence of needle-shaped crystals but distinct particle agglomeration in the water repellent-treated fly ash. Fourier-transform infrared spectroscopy revealed that the water repellent treatment caused fatty acids to form esters with aluminosilicates in the MSWI fly ash. Crystalline phase analysis of the water repellent-treated fly ash before and after the leaching test via X-ray diffraction revealed the presence of fatty acids on the fly ash surface and retention of the fatty acid coating. Overall, the multifaceted surface analysis revealed that water repellent treatment suppressed heavy metal elution by covering the surface of MSWI fly ash with hydrophobic groups.https://www.mdpi.com/2813-0391/2/4/28multifaceted surface analysissurface conditionsmunicipal solid waste incineration fly ashfatty acids |
| spellingShingle | Taiga Kaseda Hibiki Shirata Yuya Koike Multifaceted Surface Analysis of Municipal Solid Waste Incineration Fly Ash by Water Repellent Treatment with Fatty Acid Waste multifaceted surface analysis surface conditions municipal solid waste incineration fly ash fatty acids |
| title | Multifaceted Surface Analysis of Municipal Solid Waste Incineration Fly Ash by Water Repellent Treatment with Fatty Acid |
| title_full | Multifaceted Surface Analysis of Municipal Solid Waste Incineration Fly Ash by Water Repellent Treatment with Fatty Acid |
| title_fullStr | Multifaceted Surface Analysis of Municipal Solid Waste Incineration Fly Ash by Water Repellent Treatment with Fatty Acid |
| title_full_unstemmed | Multifaceted Surface Analysis of Municipal Solid Waste Incineration Fly Ash by Water Repellent Treatment with Fatty Acid |
| title_short | Multifaceted Surface Analysis of Municipal Solid Waste Incineration Fly Ash by Water Repellent Treatment with Fatty Acid |
| title_sort | multifaceted surface analysis of municipal solid waste incineration fly ash by water repellent treatment with fatty acid |
| topic | multifaceted surface analysis surface conditions municipal solid waste incineration fly ash fatty acids |
| url | https://www.mdpi.com/2813-0391/2/4/28 |
| work_keys_str_mv | AT taigakaseda multifacetedsurfaceanalysisofmunicipalsolidwasteincinerationflyashbywaterrepellenttreatmentwithfattyacid AT hibikishirata multifacetedsurfaceanalysisofmunicipalsolidwasteincinerationflyashbywaterrepellenttreatmentwithfattyacid AT yuyakoike multifacetedsurfaceanalysisofmunicipalsolidwasteincinerationflyashbywaterrepellenttreatmentwithfattyacid |