Synthesis of double-layer silicates from recycled glass cullet: A new type of chemical adsorbent
- Pennsylvania State Univ., University Park, PA (United States). Materials Research Lab.
Curbside recycling of glass bottles and jars has been extremely successful. Those glasses that are sorted by color are a marketable commodity; those that are not have no immediate commercial value and must be disposed of in landfills. With proper chemical treatment, however, mixed-glass cullet can be transformed into claylike chemical adsorbents. By mixing ground glass cullet with either alkali hydroxide or alkali carbonate solutions one is able to form a hydrous double-layer silicate known as rhodesite (NaKCa{sub 2}[Si{sub 8}O{sub 19}]{center_dot}5H{sub 2}O). Tests of the adsorptive and cation exchange properties comparable to natural clays and zeolites. Whereas natural materials tend to become sticky and/or lose their granularity when wet, rhodesite-based adsorbents do not.
- OSTI ID:
- 318753
- Journal Information:
- Environmental Science and Technology, Vol. 33, Issue 2; Other Information: PBD: 15 Jan 1999
- Country of Publication:
- United States
- Language:
- English
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