Effect of pH and Initial Phosphorus Concentration on Phosphorus Removal by Aluminum Salts
| Autor: | Jeong-Won Park, Pyung Kyu Park, Hyoeun Kwak, Hyung-Keun Chung, Sojin Min |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Precipitation (chemistry)
Phosphorus Inorganic chemistry chemistry.chemical_element 04 agricultural and veterinary sciences 010501 environmental sciences 01 natural sciences Amorphous solid Ion chemistry.chemical_compound Adsorption chemistry Aluminium Specific surface area 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Sulfate 0105 earth and related environmental sciences |
| Zdroj: | Journal of the Korean Society of Water and Wastewater. 30:123-130 |
| ISSN: | 2287-822X 1225-7672 |
| DOI: | 10.11001/jksww.2016.30.2.123 |
| Popis: | Phosphorus (P) removal by aluminum sulfate solution was investigated with varying pH and initial P concentrations. P removal was the highest at around pH 6. The pH range where P removal occurred was slightly wider at higher initial P concentrations. Compared to theoretical calculations, it was confirmed that precipitation was the main reason for P removal at low pH. At high pH, where there should be no precipitates, the P removal by adsorption of amorphous precipitates was experimentally observed. The P removal by adding amorphous precipitates prepared before the adsorption experiments, however, was lower than that by injecting aluminum sulfate solution because the prepared precipitates became larger, leading to less specific surface area available for adsorption. Ions other than sulfate had little influence on P removal. |
| Databáze: | OpenAIRE |
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