A fast method for recycling fly ash: microwave-assisted zeolite synthesis
Article Abstract:
The synthesis of zeolites through microwave-assisted hydrothermal alkaline activation processes allows for a faster recycling of fly ash. Although both the microwave and conventional methods of zeolite synthesis yield the same products, the dissolution of silica and aluminium is faster in microwave-assisted zeolite synthesis. The method hastens the conversion of of synthesized zeolites such as NaPl, KM-phillipsite, and F linde zeolites since the high retention capacities of NH+4 are reached after just a few minutes.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1997
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Synthesis and properties of zeolites from coal fly ash
Article Abstract:
A study was conducted to investigate the effects of time, pressure, base concentration, temperature and base type on the formation of zeolites from fly ash. The use of fluoride and tetrapropylamine bromide as agents for zeolite formation was also examined. A high-charge zeolitic material was produced from fly ash by heating the latter in a strong base for a few days. The fly ash zeolites exhibited relative instability compared to other aluminosilicates.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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Effect of deicing salts on metal and organic matter mobilization in roadside soils
Article Abstract:
Salts used in deicing roads affects the mobilization of metal and organic matter in roadside soils. Soil samples were leached with sodium chloride, calcium magnesium acetate or deionized water. The samples showed elevated concentrations of lead, chromium, nickel, iron and copper. Roadside soil samples were taken from Donner Pass, CA; Albany and Buffalo, NY; and Cape Cod, MA.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1992
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