Kinetic Modeling of Simultaneous Phosphate Precipitation in Municipal Sewage Treatment Plants
✍ Scribed by D. Bothe; T. Waatsack; H.-J. Warnecke
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 150 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0930-7516
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✦ Synopsis
A kinetic model is developed which describes the decomposition of phosphate in sewage treatment plants with simultaneous precipitation. In a precipitation process by means of metal salts, the formation of hydroxide always takes place simultaneously. Determination of the corresponding kinetic parameters is not possible at the same time. As the ionic reactions take place much faster than the biological incorporation of phosphate, this problem is solved by realistic assumption of instantaneous reactions. The chemical parameter in the resulting model can be determined by separate precipitation tests based on an overall reaction law for hydroxide formation. Adjustment to sewage plant data shows that this model yields satisfactory results.