Conversion of coal-fired bottom ash to fuel and construction materials
| Autor: | Derya Oz Aksoy, Reyhan Ucar, Sabiha Koca, Hüseyin Koca |
|---|---|
| Přispěvatelé: | Anadolu Üniversitesi, Porsuk Meslek Yüksekokulu, Koca, Hüseyin, Koca, Sabiha |
| Rok vydání: | 2017 |
| Předmět: |
Coal Combustion Residues
Energy-Generating Resources Municipal solid waste 020209 energy Reuse 02 engineering and technology 010501 environmental sciences engineering.material Combustion Coal Ash 01 natural sciences Dispersant 0202 electrical engineering electronic engineering information engineering Waste Recycling Froth Flotation Bottom Ashes Environmental Chemistry Recycling Coal Froth flotation Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology Cement Waste management Construction Materials business.industry Pulp (paper) General Medicine Carbon Bottom ash engineering Environmental science business |
| Zdroj: | Environmental Technology. 38:1673-1678 |
| ISSN: | 1479-487X 0959-3330 0004-0339 |
| DOI: | 10.1080/09593330.2016.1269835 |
| Popis: | WOS: 000403391500011 PubMed ID: 27976992 In this study, solid wastes taken from Seyitomer coal-fired power plant bottom ashes were subjected to experimental research to obtain a carbon-rich fraction. The possible recycling opportunities of remaining inorganic fraction in the cement and concrete industry was also investigated. Flotation technique was used to separate unburned carbon from inorganic bottom ashes. Collector type, collector, dispersant and frother amounts, and pulp density are the most important variables in the flotation technique. A number of flotation collectors were tested in the experiments including new era flotation reactives. Optimum collector, dispersant and frother dosages as well as optimum pulp density were also determined. After experimental work, an inorganic fraction was obtained, which included 5.41% unburned carbon with 81.56% weight yield. These properties meets the industrial specifications for the cement and concrete industry. The carbon content of the concentrate fraction, obtained in the same experiment, was enhanced to 49.82%. This fraction accounts for 18.44% of the total amount and can be mixed to the power plant fuel. Therefore total amount of the solid waste can possibly be recycled according to experimental results. |
| Databáze: | OpenAIRE |
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