复合混凝剂PTA-CPAM的形貌结构与净水性能

doi:10.11835/j.issn.2096-6717.2019.016

首页 > 过刊浏览>2019年第41卷第1期 >129-135. DOI:10.11835/j.issn.2096-6717.2019.016

复合混凝剂PTA-CPAM的形貌结构与净水性能
DOI:
                        10.11835/j.issn.2096-6717.2019.016
                    
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作者:
                        张鹏张鹏
湖南科技大学 土木工程学院, 湖南 湘潭 411201
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王雨露王雨露
湖南科技大学 土木工程学院, 湖南 湘潭 411201
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廖为雄廖为雄
湖南科技大学 土木工程学院, 湖南 湘潭 411201
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朱国成朱国成
湖南科技大学 土木工程学院, 湖南 湘潭 411201
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中图分类号:X703.1
基金项目:国家自然科学基金（41502331）；湖南省自然科学基金（2018JJ3174）

Morphology and structural characteristics of composite flocculant PTA-CPAM and its performance for water purification

Author:

Zhang Peng
Zhang Peng
School of Civil Engineering, Hunan University of Science & Technology, Xiangtan 411201, Hunan, P. P. China
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Wang Yulu
Wang Yulu
School of Civil Engineering, Hunan University of Science & Technology, Xiangtan 411201, Hunan, P. P. China
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Liao Weixiong
Liao Weixiong
School of Civil Engineering, Hunan University of Science & Technology, Xiangtan 411201, Hunan, P. P. China
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Zhu Guocheng
Zhu Guocheng
School of Civil Engineering, Hunan University of Science & Technology, Xiangtan 411201, Hunan, P. P. China
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摘要:

以聚合氯化铝（PAC）、四氯化钛（TiCl₄）、阳离子聚丙烯酰胺（CPAM）为原料成功制备无机-有机复合混凝剂聚钛氯化铝-阳离子聚丙烯酰胺（PTA-CPAM），采用红外光谱（IR）、扫描电镜（SEM）、能谱分析（EDS）与差热热重（TG-DTA）对产物的结构、组成及热稳定性进行分析。此外，对PTA-CPAM的混凝性能进行研究。结果表明：当m（CPAM）/m（PTA）=0.4、PTA-CPAM投加量为9.0 mg/L、pH为9.0的条件下，混凝剂的净水效果最优，且PTA-CPAM对不同初始浊度的水样都有较优的除浊能力；协同增效作用使PTA-CPAM具备更强的吸附电中和与吸附架桥网捕能力，表现出优异的除浊性能。

关键词:聚合氯化铝;四氯化钛;阳离子聚丙烯酰胺;复合混凝剂;浊度

Abstract:

A novel inorganic-organic modified composite coagulant polyaluminum chloride-titanium cationic polyacrylamide(PTA-CPAM) was prepared by chemical reaction with aluminum chloride(PAC), titanium tetrachloride(TiCl₄) and cationic polyacrylamide(CPAM). The infrared spectroscopy, scanning electron microscopy with energy dispersive spectrometer(SEM-EDS) and differential thermal analysis(TG-DTA) were applied to analysis the structural characteristics, composition and thermal stability of the polymer. The coagulation properties of PTA-CPAM was investigated, and the results showed that the better water purification effect of coagulant could be obtained when the mass ratio of CPAM and Al was 2:5, the optimum dosage was 9 mg/L and the pH value was 9.0. Moreover, PTA-CPAM had better turbidity removal ability for water samples with different initial turbidity, and the PTA-CPAM had stronger adsorptive neutralization and adsorption bridging ability due to the synergistic effect, which led to excellent turbidity removal performance.

Key words:polymeric aluminum chloride;titanium tetrachloride;cationic polyacrylamide;composite coagulant;turbidity

参考文献

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引用本文

张鹏,王雨露,廖为雄,朱国成.复合混凝剂PTA-CPAM的形貌结构与净水性能[J].土木与环境工程学报（中英文）,2019,41(1):129-135. Zhang Peng, Wang Yulu, Liao Weixiong, Zhu Guocheng. Morphology and structural characteristics of composite flocculant PTA-CPAM and its performance for water purification[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2019,41(1):129-135.10.11835/j. issn.2096-6717.2019.016

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收稿日期:2018-04-01
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