Kinetics of struvite precipitation in synthetic biologically treated swine wastewaters

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F14%3A43895419" target="_blank" >RIV/60461373:22320/14:43895419 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1080/09593330.2013.865790" target="_blank" >http://dx.doi.org/10.1080/09593330.2013.865790</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/09593330.2013.865790" target="_blank" >10.1080/09593330.2013.865790</a>

Result language
angličtina
Original language name
Kinetics of struvite precipitation in synthetic biologically treated swine wastewaters
Original language description
An experimental design was set up to understand the influence of five process parameters on the kinetics of struvite precipitation in synthetic swine wastewaters. The responses studied were the kinetics of phosphorus (P) removal, the struvite precipitation rate and the dissolution rate of amorphous calcium phosphates (ACP). The kinetic study showed that the P-removal was complete in less than 1 h and was influenced positively by the added MgO. The precipitation of struvite with MgO was confirmed to follow a first order kinetic. This study showed that ACP co-precipitated with struvite during the first 30 min. Afterwards, ACP dissolved to maintain the phosphates balance limiting the struvite growth. An initial Mg:Ca } 1.5 induced a complete dissolution of ACP in 1 h. Another experiment was conducted and validates the results from the statistical model. This experiment also determined that 7-10 h was the best time to recover large crystals. After 10 h, the crystals were broken by the stir
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DJ - Pollution and water control
OECD FORD branch
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Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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