Advanced material and approach for metal ions removal from aqueous solutions

A Novel approach to remove metals from aqueous solutions has been developed. The method is based on a resin free, solid, non-toxic, microcrystalline bisphosphonate material, which has very low solubility in water (59 mg/l to ion free Milli-Q water and 13 mg/l to 3.5% NaCl solution). The material has...

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Bibliographic Details
Published inScientific reports Vol. 5; no. 1; p. 8992
Main Authors Turhanen, Petri A., Vepsäläinen, Jouko J., Peräniemi, Sirpa
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 11.03.2015
Nature Publishing Group
Subjects
704/172
Adsorption
Aqueous solutions
Cations
Groundwater
Humanities and Social Sciences
Hydrogen-Ion Concentration
Ions - chemistry
Metals
Metals, Heavy - chemistry
multidisciplinary
Organophosphonates - metabolism
Science
Sodium chloride
Solutions - chemistry
Waste Water - chemistry
Water Purification - methods
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Summary:A Novel approach to remove metals from aqueous solutions has been developed. The method is based on a resin free, solid, non-toxic, microcrystalline bisphosphonate material, which has very low solubility in water (59 mg/l to ion free Milli-Q water and 13 mg/l to 3.5% NaCl solution). The material has been produced almost quantitatively on a 1 kg scale (it has been prepared also on a pilot scale, ca. 7 kg) and tested successfully for its ability to collect metal cations from different sources, such as ground water and mining process waters. Not only was this material highly efficient at collecting several metal ions out of solution it also proved to be regenerable and reusable over a number of adsorption/desorption, which is crucial for environmental friendliness. This material has several advantages compared to the currently used approaches, such as no need for any precipitation step.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep08992