Adsorption of arsenic species from water using activated siderite-hematite column filters
Guo, H; Stüben, D; Berner, Z; Kramar, U
HERO ID
607148
Reference Type
Journal Article
Year
2008
Language
English
PMID
| HERO ID | 607148 |
|---|---|
| In Press | No |
| Year | 2008 |
| Title | Adsorption of arsenic species from water using activated siderite-hematite column filters |
| Authors | Guo, H; Stüben, D; Berner, Z; Kramar, U |
| Journal | Journal of Hazardous Materials |
| Volume | 151 |
| Issue | 2/3 |
| Page Numbers | 628-635 |
| Abstract | Abstract: Arsenic is present at relatively high concentrations in surface water and groundwater as a result of both natural impacts and anthropogenic discharge, which requires proper treatment before use. The present study describes As adsorption on a siderite–hematite filter as a function of activating condition, empty bed contact time, and As species. Hydrogen peroxide activating increased As adsorption on siderite by 16.2μg/g, and on hematite by 13.0μg/g. The H2O2 conditioning enhanced adsorption efficiency of activated siderite–hematite filters up to throughput of 500 pore volumes of 500μg/L As water. At values greater than 47min, the empty bed contact time (EBCT) had only a weak influence on the removal capacity of pristine siderite–hematite filters. Due to the formation of fresh Fe(III)-oxide layer in the H2O2-conditioned filter and the pristine hematite–siderite filter, both of them may be utilized as a cost-effective reactor for treating As water. A toxicity characteristic leaching procedure (TCLP) test showed that the spent minerals were not hazardous and could be safely landfilled. [Copyright 2008 Elsevier] Copyright of Journal of Hazardous Materials is the property of Elsevier Science Publishers B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts) |
| Doi | 10.1016/j.jhazmat.2007.06.035 |
| Pmid | 17640801 |
| Wosid | WOS:000253829200042 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | |WOS:000253829200042 |
| Is Public | Yes |
| Language Text | English |
| Keyword | SEPARATION (Technology); OXIDE minerals; ADSORPTION; SURFACE chemistry; GROUNDWATER; HYDROGEN peroxide |
| Is Qa | No |