Combustion Melting Characterisation of Solid Fuel Obtained from Sewage Sludge
Solid fuelization technology can increase the heating value of sewage sludge such that it can be utilised as a fossil fuel substitutes. Reducing landfilling of bottom and fly ash resulting from heavy metals contained in sewage sludge is challenging. Hence, combustion melting technology (CMT), which...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/4/805 |
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| author | Dongju Kim Dong-kyoo Park Yong-taek Lim Soo-nam Park Yeong-Su Park Kyunghyun Kim |
| author_facet | Dongju Kim Dong-kyoo Park Yong-taek Lim Soo-nam Park Yeong-Su Park Kyunghyun Kim |
| author_sort | Dongju Kim |
| collection | DOAJ |
| description | Solid fuelization technology can increase the heating value of sewage sludge such that it can be utilised as a fossil fuel substitutes. Reducing landfilling of bottom and fly ash resulting from heavy metals contained in sewage sludge is challenging. Hence, combustion melting technology (CMT), which can discharge bottom ash in the form of slag, has been proposed herein as an alternative to the conventional incineration technology. However, further research is required to improve the flowability of slag. Applicability of CMT for the stable treatment of heavy metals in the ash generated during the energisation of sewage sludge solid fuel has been reviewed. The change in the degree of fluidity was identified via a laboratory-scale fluidity measurement experiment following changes in melting temperature, mixing ratio of sewage sludge and sawdust, and basicity. The pouring index (PI) of sewage sludge solid fuel (pellet) was maintained at a level of about 60% at a basicity index of 0.8. Based on the results, the slagging rates and volume reduction rates, exhaust gas analysis, and heavy metal elution characteristics under oxygen enrichment were derived from a 2 ton/day combustion melting pilot plant experiment; thereafter, the feasibility of combustion melting of sewage sludge solid fuel was determined. |
| first_indexed | 2024-03-09T05:53:13Z |
| format | Article |
| id | doaj.art-68d1b7b8efbb4178a0a785f058c9cd00 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T05:53:13Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-68d1b7b8efbb4178a0a785f058c9cd002023-12-03T12:15:56ZengMDPI AGEnergies1996-10732021-02-0114480510.3390/en14040805Combustion Melting Characterisation of Solid Fuel Obtained from Sewage SludgeDongju Kim0Dong-kyoo Park1Yong-taek Lim2Soo-nam Park3Yeong-Su Park4Kyunghyun Kim5Plant Engineering Center, Institute for Advanced Engineering, Yongin 17180, KoreaPlant Engineering Center, Institute for Advanced Engineering, Yongin 17180, KoreaPlant Engineering Center, Institute for Advanced Engineering, Yongin 17180, KoreaPlant Engineering Center, Institute for Advanced Engineering, Yongin 17180, KoreaPlant Engineering Center, Institute for Advanced Engineering, Yongin 17180, KoreaDepartment of Research Institute, Jinenertech Co., Ltd., Cheongyang 33317, KoreaSolid fuelization technology can increase the heating value of sewage sludge such that it can be utilised as a fossil fuel substitutes. Reducing landfilling of bottom and fly ash resulting from heavy metals contained in sewage sludge is challenging. Hence, combustion melting technology (CMT), which can discharge bottom ash in the form of slag, has been proposed herein as an alternative to the conventional incineration technology. However, further research is required to improve the flowability of slag. Applicability of CMT for the stable treatment of heavy metals in the ash generated during the energisation of sewage sludge solid fuel has been reviewed. The change in the degree of fluidity was identified via a laboratory-scale fluidity measurement experiment following changes in melting temperature, mixing ratio of sewage sludge and sawdust, and basicity. The pouring index (PI) of sewage sludge solid fuel (pellet) was maintained at a level of about 60% at a basicity index of 0.8. Based on the results, the slagging rates and volume reduction rates, exhaust gas analysis, and heavy metal elution characteristics under oxygen enrichment were derived from a 2 ton/day combustion melting pilot plant experiment; thereafter, the feasibility of combustion melting of sewage sludge solid fuel was determined.https://www.mdpi.com/1996-1073/14/4/805sewage sludgeslaggingpouring indexfluiditybasicity |
| spellingShingle | Dongju Kim Dong-kyoo Park Yong-taek Lim Soo-nam Park Yeong-Su Park Kyunghyun Kim Combustion Melting Characterisation of Solid Fuel Obtained from Sewage Sludge Energies sewage sludge slagging pouring index fluidity basicity |
| title | Combustion Melting Characterisation of Solid Fuel Obtained from Sewage Sludge |
| title_full | Combustion Melting Characterisation of Solid Fuel Obtained from Sewage Sludge |
| title_fullStr | Combustion Melting Characterisation of Solid Fuel Obtained from Sewage Sludge |
| title_full_unstemmed | Combustion Melting Characterisation of Solid Fuel Obtained from Sewage Sludge |
| title_short | Combustion Melting Characterisation of Solid Fuel Obtained from Sewage Sludge |
| title_sort | combustion melting characterisation of solid fuel obtained from sewage sludge |
| topic | sewage sludge slagging pouring index fluidity basicity |
| url | https://www.mdpi.com/1996-1073/14/4/805 |
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