Influence of organic matter and O-phosphate on chromium(VI) adsorption
Aide, MT
| HERO ID | 1514234 |
|---|---|
| In Press | No |
| Year | 1992 |
| Title | Influence of organic matter and O-phosphate on chromium(VI) adsorption |
| Authors | Aide, MT |
| Volume | 26 |
| Issue | 0 |
| Page Numbers | 79-90 |
| Abstract | BIOSIS COPYRIGHT: BIOL ABS. Recent investigations of the soil chemistry of chromium suggest that chromium may exist in two forms: (1) the chromate anion and (2) the chronic cation. The present study used chromate absorption isotherms on selected horizons from six soils differing in texture. pH, and organic carbon. Generally, higher levels of organic carbon were associated with enhanced chromate adsorptivity, while o-phosphate, as a co-solute, inhibited chromate adsorptivity. Organic carbon was inferred to easily reduce chromate, giving appearances of a high selectivity. Chromate adsorption in organic carbon impoverished horizons is proposed to be a combination of anionic reduction by Fe(II)-Mn(II) and an anionic competitive exchange reaction. |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Journal: Trans Mo Acad Sci ISSN: |
| Is Public | Yes |
| Language Text | eng |
| Keyword | MINERALS; ENVIRONMENTAL POLLUTANTS/POISONING; OCCUPATIONAL DISEASES; AIR POLLUTION; SOIL POLLUTANTS; WATER POLLUTION; Biochemical Studies-Minerals; Toxicology-Environmental and Industrial Toxicology; Public Health: Environmental Health-Air; Soil Science-Physics and Chemistry (1970- ); 18540-29-9 |