Effect of heating on phosphate adsorption by soil
The effect of soil heating at different temperatures (i.e 100 - 500°C) on phosphate adsorption have been investigated. The soil was obtained within the university campus. The final concentration of phosphate in solution was determined according to ascorbic acid method. The results of the batch ex...
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| Format: | Academic Exercise |
| Language: | English |
| Published: |
2008
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| Online Access: | https://eprints.ums.edu.my/id/eprint/20692/1/Effect%20of%20heating%20on%20phosphate.pdf |
| Summary: | The effect of soil heating at different temperatures (i.e 100 - 500°C) on phosphate
adsorption have been investigated. The soil was obtained within the university campus.
The final concentration of phosphate in solution was determined according to ascorbic
acid method. The results of the batch experiments showed that percentage removal of
phosphate decreased while the amount of phosphate adsorbed increased with increase in
initial phosphate concentration. At a fixed initial phosphate concentration, the percentage
removal of phosphate increased with increasing heating temperature from 100°C to
500°C. The value of maximum adsorption capacity also increased with increasing heating
temperature. The adsorption data fitted to Langmuir or Freundlich isotherm depending on
the heating temperature. Overall, heating the soil at high temperatures has a positive
effect on phosphate adsorption. |
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