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Waste water treatment for crystalline silicon solar cell production
Schleef, M.; Worf, D.; Bartels, R.; Kostieva, M.; Wild - Scholten, M.J. de
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 15-2-2011
ECN publicatienummer: Publicatie type:
ECN-W--11-007 Artikel wetenschap tijdschrift
Aantal pagina's:

Gepubliceerd in: Photovoltaics International (PV-Tech), , 2011, Vol.11, p.20-20.

This article provides an overview of the typical waste water treatment methods for crystalline silicon solar cell production. Firstly, a short description is provided of the main process steps of photovoltaic production and the types of waste water generated during these steps. Secondly, the typical waste water treatment methods of hydrogen fluoride (HF) precipitation and neutralization are presented. Furthermore, some options for the reuse of rinse water are discussed and several guidelines for the design of waste water treatment systems are given. Finally, the relative environmental impact of the waste water treatment compared to the emissions of the whole fab is presented using the life-cycle assessment (LCA) methodology.

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