Optimize the Preparation of Novel Pyrite Tailings Based Non-sintered Ceramsite by Plackett-Burman Design Combined With Response Surface Method for Phosphorus Removal.

Front Chem · 2022 · PMC8957833 · PMID 35350776

Europe PMC DOI

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highly significantno p-value reported

The F value of model was 7.54 and the p value (Prob>F) was 0.018, indicating that the model was highly significant, which was also confirmed by the non-significant p value of “Lack of fit.” It can be also found that the variable X 1 as well as the quadratic terms X 2 2 and X 3 2 showed significant relationship with the TP removal rates.

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an increasing trendno p-value reported

With the increasing of dehydrated sludge dosage, the TP removal rate of PTUC showed an increasing trend.

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