An Effective New Treatment of Fluoride-Containing Sludge Resulting from the Manufacture of Photovoltaic Cells
| Autor: | Francesco Ferella, Valentina Corradini, Svetlana B. Zueva, Nicolò Maria Ippolito, Francesco Veglio, Elena V. Baturina |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Waste management
business.industry Process Chemistry and Technology Chemical technology Fossil fuel Photovoltaic system Scrubber Bioengineering Environmental pollution non-hazardous waste TP1-1185 Fluoride-containing sludge Non-hazardous waste Precipitation precipitation Renewable energy fluoride-containing sludge Chemistry Hazardous waste Chemical Engineering (miscellaneous) Environmental science Deposition (phase transition) Crystalline silicon business QD1-999 |
| Zdroj: | Processes, Vol 9, Iss 1745, p 1745 (2021) Processes Volume 9 Issue 10 |
| ISSN: | 2227-9717 |
| Popis: | The circular economy and maximization of environmental sustainability are increasingly becoming the vision and mission of companies competing in present-day global markets. In particular, in the energy sector, the transition from fossil fuels to renewable sources of energy has become the widespread mantra. One typical example is the deployment of devices which produce clean energy, such as solar photovoltaic panels and solar thermal panels, wind generators, tidal stream generators, wave power generators, etc. These are undoubtedly generating clean energy, but their manufacture creates hazardous by-products, the disposal of which results in increased environmental pollution. Chemical Vapor Deposition (CVD) is widely used in manufacturing of solar photovoltaic cells. In these processes, typically, crystalline silicon is precipitated from chlorosilanes, iodides, bromides and fluorides. Polluting by-products include deposition of a silicon film, formation of SiO2 powder and formation of toxic vapors of HF, SiH4 and PH3. Usually, these gaseous products are eliminated in a central scrubber, whose unwanted by-product consists in large quantities of hazardous fluorine-containing sludge. This article concerns an effective and inexpensive detoxification of fluorinated sludge, developed by the authors during research into the sludge collected from the scrubber of a PV cell manufacturing plant located in southern Italy. |
| Databáze: | OpenAIRE |
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