Complex processing of high-carbon ash and slag waste
The paper considers a current issue of ash and slag processing for the Polyus Aldan JSC, that has accumulated over 1 million tons of this waste. Following the results of the review of Russian and foreign literature, four promising areas of their use were selected: road construction, building materia...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Saint-Petersburg Mining University
2022-04-01
|
| Series: | Записки Горного института |
| Subjects: | |
| Online Access: | https://pmi.spmi.ru/index.php/pmi/article/view/15578?setLocale=en_US |
| _version_ | 1797947293826023424 |
|---|---|
| author | Mariia A. Chukaeva Vera A. Matveeva Ivan P. Sverchkov |
| author_facet | Mariia A. Chukaeva Vera A. Matveeva Ivan P. Sverchkov |
| author_sort | Mariia A. Chukaeva |
| collection | DOAJ |
| description | The paper considers a current issue of ash and slag processing for the Polyus Aldan JSC, that has accumulated over 1 million tons of this waste. Following the results of the review of Russian and foreign literature, four promising areas of their use were selected: road construction, building materials, reclamation of disturbed lands, and inert aggregates. To assess the possibility of implementing the selected disposal directions, the samples of ash and slag waste of the enterprise were sampled and analyzed. Fuel characteristics, chemical and mineral composition, as well as physico-chemical and mechanical properties of waste were determined. Taking into account the results of complex laboratory studies and the requirements of regulatory documents, each of the selected areas of using ash and slag waste was evaluated. It was found that their disposal by traditional methods has limitations, mainly related to the high content of unburned fuel residues. The high content of combustible substances and the high specific heat of combustion with a relatively low ash content suggested the possibility of thermal disposal of the studied waste. Based on the literature data, the characteristics of the preparation of organic coal-water suspensions based on the studied ash and slag waste were selected. As a result of a series of experiments on their flaring, the expediency of using the obtained fuel at the enterprise under consideration has been proved. The authors note the possibility of using ash obtained after thermal waste disposal in the road construction industry. The prospects for further research of technologies for the preparation and combustion modes of suspension fuel based on ash and slag waste are determined. |
| first_indexed | 2024-04-10T21:24:23Z |
| format | Article |
| id | doaj.art-da84dc087c9148539cfe4074272666d8 |
| institution | Directory Open Access Journal |
| issn | 2411-3336 2541-9404 |
| language | English |
| last_indexed | 2024-04-10T21:24:23Z |
| publishDate | 2022-04-01 |
| publisher | Saint-Petersburg Mining University |
| record_format | Article |
| series | Записки Горного института |
| spelling | doaj.art-da84dc087c9148539cfe4074272666d82023-01-20T02:04:52ZengSaint-Petersburg Mining UniversityЗаписки Горного института2411-33362541-94042022-04-012539710410.31897/PMI.2022.515578Complex processing of high-carbon ash and slag wasteMariia A. Chukaeva0https://orcid.org/0000-0003-3643-6757Vera A. Matveeva1https://orcid.org/0000-0001-9893-380XIvan P. Sverchkov2https://orcid.org/0000-0003-4725-0050Saint Petersburg Mining UniversitySaint Petersburg Mining UniversitySaint Petersburg Mining UniversityThe paper considers a current issue of ash and slag processing for the Polyus Aldan JSC, that has accumulated over 1 million tons of this waste. Following the results of the review of Russian and foreign literature, four promising areas of their use were selected: road construction, building materials, reclamation of disturbed lands, and inert aggregates. To assess the possibility of implementing the selected disposal directions, the samples of ash and slag waste of the enterprise were sampled and analyzed. Fuel characteristics, chemical and mineral composition, as well as physico-chemical and mechanical properties of waste were determined. Taking into account the results of complex laboratory studies and the requirements of regulatory documents, each of the selected areas of using ash and slag waste was evaluated. It was found that their disposal by traditional methods has limitations, mainly related to the high content of unburned fuel residues. The high content of combustible substances and the high specific heat of combustion with a relatively low ash content suggested the possibility of thermal disposal of the studied waste. Based on the literature data, the characteristics of the preparation of organic coal-water suspensions based on the studied ash and slag waste were selected. As a result of a series of experiments on their flaring, the expediency of using the obtained fuel at the enterprise under consideration has been proved. The authors note the possibility of using ash obtained after thermal waste disposal in the road construction industry. The prospects for further research of technologies for the preparation and combustion modes of suspension fuel based on ash and slag waste are determined.https://pmi.spmi.ru/index.php/pmi/article/view/15578?setLocale=en_USash and slag wastehigh-carbon wastecomplex processingthermal utilizationorganic coal-water fuelmonitoring |
| spellingShingle | Mariia A. Chukaeva Vera A. Matveeva Ivan P. Sverchkov Complex processing of high-carbon ash and slag waste Записки Горного института ash and slag waste high-carbon waste complex processing thermal utilization organic coal-water fuel monitoring |
| title | Complex processing of high-carbon ash and slag waste |
| title_full | Complex processing of high-carbon ash and slag waste |
| title_fullStr | Complex processing of high-carbon ash and slag waste |
| title_full_unstemmed | Complex processing of high-carbon ash and slag waste |
| title_short | Complex processing of high-carbon ash and slag waste |
| title_sort | complex processing of high carbon ash and slag waste |
| topic | ash and slag waste high-carbon waste complex processing thermal utilization organic coal-water fuel monitoring |
| url | https://pmi.spmi.ru/index.php/pmi/article/view/15578?setLocale=en_US |
| work_keys_str_mv | AT mariiaachukaeva complexprocessingofhighcarbonashandslagwaste AT veraamatveeva complexprocessingofhighcarbonashandslagwaste AT ivanpsverchkov complexprocessingofhighcarbonashandslagwaste |