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Remoción de plomo de soluciones acuosas por titanato de potasio dopado con sílice
| Content Provider | Semantic Scholar |
|---|---|
| Author | Aguilar-González, Miguel A. Gorokhovsky, Alexander Aguilar-Elguézabal, Alfredo Escalante-García, José Iván |
| Copyright Year | 2009 |
| Abstract | This paper is related to elimination of Pb 2+ ions from aqueous solutions by adsorption in potassium tetratitanate doped with silica. The adsorbent was prepared in the form of granules with pastes of potassium polytitanate (45 %), powdered Pyrex® glass (5 %) and potato starch (50 %), which were extruded and thermally treated at 1100 oC. The structural characteristic of the granulated adsorbent allows reducing the Pb concentration, from the solutions eluted through an adsorption column, to levels below the requirement of national standards. The effects of the time of saturation of the adsorbent and the pH of the solution were also investigated on the effectiveness of the adsorption of Pb. The mechanism of lead adsorption, by the developed adsorbent, is considered as a combination of adsorption, ion-exchange and co-precipitation processes. It is also shown that the lead-saturated adsorbent could be utilized to produce high-strength non-dangerous ceramic materials. |
| Starting Page | 125 |
| Ending Page | 132 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| Volume Number | 25 |
| Alternate Webpage(s) | http://www.scielo.org.mx/pdf/rica/v25n3/v25n3a1.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
