分类筛选
分类筛选:

关于聚合硫酸铁论文范文资料 与响应面法优化聚合硫酸铁铝制备应用有关论文参考文献

版权:原创标记原创 主题:聚合硫酸铁范文 科目:发表论文 2024-02-17

《响应面法优化聚合硫酸铁铝制备应用》:本论文可用于聚合硫酸铁论文范文参考下载,聚合硫酸铁相关论文写作参考研究。

摘 要:以七水硫酸亚铁和硫酸铝(工业级)为原料,用直接氧化法制备新的水处理剂——聚合硫酸铁铝(polymeric aluminum ferric sulfate, PAFS),在单因素的基础上,根据Box-Behnken试验设计原理,运用响应面分析和优化适应混凝处理生活污水的PAFS的制备工艺.探讨了反应温度、时间、SO42-/Fe、NO3-/Fe、Al/Fe、PO43-/Fe、OH/Fe摩尔比对生活污水TP去除率的影响.结果表明:PAFS的最佳制备工艺条件为反应温度、时间和SO42-/Fe、NO3-/Fe、Al/Fe、PO43-/Fe、OH/Fe摩尔 别为84℃、48 min、0.38、0.47、0.11、0.14、0.03.在此条件下制备的PAFS对生活污水TP去除率为98.67%,和模型预测值拟合性良好,偏差为0.38%.同时,生活污水的COD去除率达到79.13%,浊度去除率达到98.12%.

关键词:水处理剂;混凝处理;响应面分析;聚合硫酸铁铝;TP去除率

中图分类号:TQ316; X703

文献标志码:A

文章编号:1674-4764(2013)03-0106-09

Optimization of Preparation and Application of Polymeric Aluminum

Ferric Sulfate Coagulant by Response Surface Analysis

Jiang Zhenzhen1, Zheng Huaili1, Tan Mingzhuo2, Zhu Junren1, Guan Qingqing1, Feng Li1, Chen Wei1

(1. Key Laboratory of The Three Gorges Reservoir Regions Eco-Environment, Ministry of Education,

Chongqing University, Chongqing 400045, P. R. China; 2.Jiangmen Wealth Water Purifying Agent Co., Ltd.

Jiangmen 529000, Guangdong, P. R. China)

Abstract:

A new composite coagulant polymeric aluminum ferric sulfate (PAFS) was synthesized using FeSO4·7H2O and Al2(SO4)3 (industrial) by the direct oxidation method. The optimization of preparation process of PAFS was investigated using single factor and response surface methodology based on Box-Behnken central design. Parameters affecting the coagulant performance, such as reaction temperature, time, SO42-/Fe, NO3-/Fe, Al/Fe, PO43-/Fe, and OH/Fe molar ratios were examined. The results show that when temperature, time, SO42-/Fe, NO3-/Fe, Al/Fe, PO43-/Fe, and OH/Fe molar ratios were 84℃, 48 min, 0.38, 0.47, 0.11, 0.14, 0.03, respectively, it is the optimum conditions for synthesis. In this condition TP removal was 98.67%, and the experimental results were in good agreement with the predicted values of the model equation with 0.38% deviation. Furthermore, COD (chemical oxygen demand) and turbidity removal efficiency were 79.13% and 98.12%, respectively.

Key words:

water purification; coagulation-flocculation process; response surface methodology; polymeric aluminum ferric sulfate; TP removal

近年来,随着废水排放总量的增加以及洗涤剂、化肥等化学物质的广泛使用,使水体中氮、磷逐渐上升造成富营养化.控制水体富营养化,提高水体质量是水处理技术领域面临的重要问题.目前中国城镇生活污水除磷技术分为生物除磷和化学除磷,其中生物除磷稳定性差、效果不好,难以达到国家标准[1-3].絮凝法是化学除磷法中最重要的处理方法之一,而絮凝剂是絮凝法处理废水的核心[4-5].无机高分子复合絮凝剂是近年来絮凝剂研究和应用的热点和前沿领域之一[6-10].

响应面法是优化工艺条件的一种数学处理方法[11-12],采用多元二次回归方程来拟合因素和响应值之间的函数关系,通过对回归方程的分析来寻求最优工艺参数,解决多变量的问题.Box-Behnken试验设计是最常用的一种响应面法.

聚合硫酸铁论文参考资料:

高铁论文题目

结论:响应面法优化聚合硫酸铁铝制备应用为大学硕士与本科聚合硫酸铁毕业论文开题报告范文和相关优秀学术职称论文参考文献资料下载,关于免费教你怎么写聚合硫酸铁又称聚铁方面论文范文。

和你相关的