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| Optimization of Flocculant Process for Papermaking Wastewater Treatment with Response Surface Method |
| Received:June 19, 2020 |
| DOI：10.11980/j.issn.0254-508X.2020.09.004 |
| Key Words:flocculant papermaking wastewater response surface method process optimization |
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| Abstract:The papermaking wastewater from a papermaking factory in Guangzhou was treated by flocculation process， PFS prepared from papermaking factory Fenton sludge as flocculant， and the factors of dosage of PFS， volume ratio of PAM to PFS， reaction temperature on COD removal rate of papermaking wastewater efficiency were optimized with response surface method. The results showed that the flocculant process could effectively reduce the pollutant content in papermaking wastewater， the optimum conditions were optimized by response surface method as follows， dosage of PFS was 1.04 mL/L， PAM to PFS volume ratio was 4.99， temperature was 31.54℃. Under this condition， the CODCr removal rate of papermaking wastewater was 39.6%， which was consistent with the predicted value （39.5%） by the model equation. This results showed that the response surface methodology could test the interaction between the influencing factors in a small number of experiments， and successfully optimize general operation parameters in flocculant processes treating for papermaking wastewater. |
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