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| Optimization of Coagulation-flocculation Process Using Response Surface Methodology to Treat Effluent from Papermaking Reconstituted Tobacco Production |
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| DOI：10.11980/j.issn.0254-508X.2016.08.008 |
| Key Words:papermaking reconstituted tobacco response surface methodology effluent coagulation-flocculation |
| Fund Project:中国烟草总公司科技重大专项“污水的深度处理与生产废弃物处理及回收利用技术研究”(计划文号：中烟办［2012］242号,合同号：110201201033(ZZ-14))；云南中烟工业有限责任公司科技计划重点项目“再造烟叶生产废水零排放关键技术研究及应用”(计划文号:滇烟工技［2015］48号,任务书编号：2015GY01)。 |
| Author Name | Affiliation | | 曹恩豪1 | 1.昆明理工大学材料科学与工程学院,云南昆明,650093 | | 李 军1 | 1.昆明理工大学材料科学与工程学院,云南昆明,650093 | | 胡 劲1 | 1.昆明理工大学材料科学与工程学院,云南昆明,650093 | | 王玉天1 | 1.昆明理工大学材料科学与工程学院,云南昆明,650093 | | 王开军1 | 1.昆明理工大学材料科学与工程学院,云南昆明,650093 | | 段云彪1 | 1.昆明理工大学材料科学与工程学院,云南昆明,650093 | | 关 平2 | 2.云南中烟再造烟叶有限责任公司,云南昆明,650106 | | 徐广晋2,* | 2.云南中烟再造烟叶有限责任公司,云南昆明,650106 |
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| Abstract:In order to treat papermaking reconstituted tobacco effluent, a coagulation-flocculation process was used with PFS as coagulant and CPAM as flocculant. Response surface methodology (RSM) was utilized to optimize this process. The results showed that, PFS dosage of 3150 mg/L, CPAM dosage of 11 mg/L and pH value of 7.5 were chosen to be the center point of the response surface design and to investigate the effects on coagulation-flocculation rate and electrical conductivity. Two quadratic regression models with PFS dosage, CPAM dosage and pH value as independent variables were developed based on acentral composite design (CCD). And the analysis of variance indicated that both the two models were significant (P<0.0001). pH value had a greater effect on both coagulation-flocculation rate and electrical conductivity than the other two factors. Moreover, the interaction between pH value and PFS dosage and the interaction between pH value and CPAM dosage both were significant. The optimal PFS dosage, CPAM dosage and pH value were 2859 mg/L, 14.9 mg/L and 8.0 respectively, the coagulation-flocculation rate and electrical conductivity were 67.6% and 6.18 mS/cm respectively under the optimal conditions. The experimental data agreed well with the model predicted values, and also showed that the regression equations could be used as the theoretical basis for using coagulation-flocculation process to treat papermaking reconstituted tobacco effluent. |
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