The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.
Use of Reverse Osmosis Membranes to Remove Perfluorooctane Sulfonate (PFOS) from Semiconductor Wastewater
Abstract
Perfluorooctane sulfonate (PFOS) and related substances are persistent, bioaccumulative, and toxic, and thus of substantial environmental concern. PFOS is an essential photolithographic chemical in the semiconductor industry with no substitutes yet identified. The industry seeks effective treatment technologies. The feasibility of using reverse osmosis (RO) membranes for treating semiconductor wastewater containing PFOS has been investigated. Commercial RO membranes were characterized in terms of permeability, salt rejection, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and membrane surface zeta potential (streaming potential measurements). Filtration tests were performed to determine the membrane flux and PFOS rejection. Over a wide range of feed concentrations (0.5 - 1500 ppm), the RO membranes generally rejected 99% or more of the PFOS. Rejection was better for tighter membranes, but was not affected by membrane zeta potential. Flux decreased with increasing PFOS concentration. While the flux reduction was severe for a loose RO membrane probably due to its higher initial flux, very stable flux was maintained for tighter membranes. At a very high feed concentration (about 500 ppm), all the membranes exhibited an identical stable flux. Isopropyl alcohol, present in some semiconductor wastewaters, had a detrimental effect on membrane flux. Where present it needs to be removed from the wastewater prior to using RO membranes.
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Cites
Global Distribution of Perfluorooctane Sulfonate in Wildlife
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Cited by
An overview of the uses of per- and polyfluoroalkyl substances (PFAS)
Glüge, J., Scheringer, M., Cousins, I. T., DeWitt, J. C., Goldenman, G., Herzke, D., Lohmann, R., Ng, C. A., Trier, X., & Wang, Z. (2020) · Environmental Science: Processes & Impacts · doi:10.1039/d0em00291g · Cited by 2,466
A Never-Ending Story of Per- and Polyfluoroalkyl Substances (PFASs)?
Wang, Z., DeWitt, J. C., Higgins, C. P., & Cousins, I. T. (2017) · Environmental Science & Technology · doi:10.1021/acs.est.6b04806 · Cited by 1,921
Chemical treatment technologies for waste-water recycling—an overview
Gupta, V. K., Ali, I., Saleh, T. A., Nayak, A., & Agarwal, S. (2012) · RSC Advances · doi:10.1039/c2ra20340e · Cited by 1,613
Tang, C. Y., Kwon, Y.-N., & Leckie, J. O. (2009) · Desalination · doi:10.1016/j.desal.2008.04.003 · Cited by 1,116
Self-citationRahman, M. F., Peldszus, S., & Anderson, W. B. (2014) · Water Research · doi:10.1016/j.watres.2013.10.045 · Cited by 1,022
Metadata
- Authors
- Tang, C. Y., Fu, Q. S., Robertson, A. P., Criddle, C. S., & Leckie, J. O.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2006-10-05
- Volume
- 40
- Issue
- 23
- Pages
- 7343-7349
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2009809824
- Cited by
- 422
- References
- 10
- FWCI
- 13.42
- Type
- journal article
- Language
- en
- Open access
- closed
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