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Advanced material and approach for metal ions removal from aqueous solutions.

Turhanen PA, Vepsäläinen JJ, Peräniemi S - Sci Rep (2015)

Bottom Line: 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.This material has several advantages compared to the currently used approaches, such as no need for any precipitation step.

View Article: PubMed Central - PubMed

Affiliation: School of Pharmacy,Biocenter Kuopio, University of Eastern Finland, P.O.Box 1627, FI-70211, Kuopio, Finland.

ABSTRACT
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.

No MeSH data available.


Chemical structure of Diphonix®.
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f6: Chemical structure of Diphonix®.

Mentions: The metal complexing capacities for N10O and Diphonix® (see chemical structure in Figure 6) were determined by batch method in the excess of metal ion (C(Mn+) = 100 mg/l) at pH 4.0, (except AlIII and FeIII pH 1.0 and 3.0, respectively). The amount of N10O used was 100 mg and Diphonix® resin 300 mg, because moisture content of Diphonix® resin is 70%. Experiments were accomplished otherwise as described above. Uptake of metal ion per unit mass of N10O or Diphonix® resin (mg/g) was calculated as q = (C0-C) ·V/W where C0 and C (mg/l) corresponded to liquid-phase concentration of metal ion initial and final sampling times, respectively, V is the volume of solution (l), and W is the mass of dry N10O or Diphonix® resin used (g).


Advanced material and approach for metal ions removal from aqueous solutions.

Turhanen PA, Vepsäläinen JJ, Peräniemi S - Sci Rep (2015)

Chemical structure of Diphonix®.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4355739&req=5

f6: Chemical structure of Diphonix®.
Mentions: The metal complexing capacities for N10O and Diphonix® (see chemical structure in Figure 6) were determined by batch method in the excess of metal ion (C(Mn+) = 100 mg/l) at pH 4.0, (except AlIII and FeIII pH 1.0 and 3.0, respectively). The amount of N10O used was 100 mg and Diphonix® resin 300 mg, because moisture content of Diphonix® resin is 70%. Experiments were accomplished otherwise as described above. Uptake of metal ion per unit mass of N10O or Diphonix® resin (mg/g) was calculated as q = (C0-C) ·V/W where C0 and C (mg/l) corresponded to liquid-phase concentration of metal ion initial and final sampling times, respectively, V is the volume of solution (l), and W is the mass of dry N10O or Diphonix® resin used (g).

Bottom Line: 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.This material has several advantages compared to the currently used approaches, such as no need for any precipitation step.

View Article: PubMed Central - PubMed

Affiliation: School of Pharmacy,Biocenter Kuopio, University of Eastern Finland, P.O.Box 1627, FI-70211, Kuopio, Finland.

ABSTRACT
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.

No MeSH data available.