Waste water treatment for crystalline silicon solar cell production

Published: March 1, 2011

By Martin Schleef, Senior Engineer, Process Systems Group Leader, M+W Germany GmbH; Detlef Worf, Senior Engineer, Process Systems Group, M+W Germany GmbH; Rolf Bartels, Senior Engineer, Process Systems Group, M+W Germany GmbH; Mila Kostieva, Project Engineer, Production Environments Group, M+W Germany GmbH; Mariska de Wild-Scholten, Member of the Research Staff, ECN Solar Energy

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.

Single Paper

Includes one paper digital access
US$ 21

Photovoltaics International SubscriptionDigital & Archive

Includes 12 months of unlimited digital access to the Photovoltaics International content, full online archive, technical paper collection (over 700), and more.

Includes 2 upcoming issues in digital.

US$ 449 per year

This Website Uses Cookies

By continuing browsing this website you are accepting our Cookie Policy, as well as our Terms of Use and Privacy Policy.