[1]潘浩奇,张亚倩,张凤娥,等.高岭石/碳酸钙复合材料除磷性能研究[J].常州大学学报(自然科学版),2020,32(06):48-53.[doi:10.3969/j.issn.2095-0411.2020.06.008]
　PAN Haoqi,ZHANG Yaqian,ZHANG Fenge,et al.Study on Phosphorus Removal Properties of Kaolinite/Calcium Carbonate Composites[J].Journal of Changzhou University(Natural Science Edition),2020,32(06):48-53.[doi:10.3969/j.issn.2095-0411.2020.06.008]
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高岭石/碳酸钙复合材料除磷性能研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第32卷
期数:
2020年06期
页码:
48-53
栏目:
环境科学与工程
出版日期:
2020-11-28

文章信息/Info

Title:
Study on Phosphorus Removal Properties of Kaolinite/Calcium Carbonate Composites
文章编号:
2095-0411(2020)06-0048-06
作者:
潘浩奇; 张亚倩; 张凤娥; 董良飞
常州大学 环境与安全工程学院,江苏 常州 213164
Author(s):
PAN Haoqi;  ZHANG Yaqian;  ZHANG Feng’e;  DONG Liangfei
School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China
关键词:
高岭石;  碳酸钙;  磷酸盐;  吸附
Keywords:
kaolinite;  calcium carbonate;  phosphate;  adsorption
分类号:
X 703
DOI:
10.3969/j.issn.2095-0411.2020.06.008
文献标志码:
A
摘要:
为去除生活与工业污水中的磷酸盐,通过氧化钙与碳酸钠的联合作用,对高岭石进行连续改性,将碳酸钙引导至黏土层,制备了改性高岭石/碳酸钙复合吸附材料(KCA)。利用SEM,XRD,FT-IR对KCA进行表征,并结合零电荷点、吸附动力学、吸附等温线、实际废水研究KCA对磷酸盐的吸附特性。结果表明:KCA吸附量显著提升达到8.03 mg/g; KCA表面硅醇基团增加,并负载有碳酸钙颗粒层; KCA在水溶液中表面带正电,吸附磷酸盐的过程符合准二级动力学与Langmuir吸附模型。
Abstract:
In order to remove phosphate from domestic and industrial wastewater, kaolinite was continuously modified by the combination of calcium oxide and sodium carbonate, calcium carbonate was guided to the clay layer to prepare KCA. The KCA was characterized by SEM, XRD, FT-IR and combined with zero-point charge, adsorption kinetics, adsorption isotherms, actual waste water to study the KCA adsorption characteristics of phosphate. The results showed that the adsorption capacity of KCA increased significantly to 8.03 mg/g, the silanol groups on the surface of KCA were increased and loaded with calcium carbonate particles. KCA is positively charged on the surface of aqueous solution, and the process of phosphate adsorption conforms to the pesudo-second order kinetics and Langmuir adsorption model.

参考文献/References:


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备注/Memo

备注/Memo:
收稿日期:2020-08-09。
基金项目:“十二五” 国家水体污染控制与治理科技重大专项子课题(2012zx07301-001)。
作者简介:潘浩奇(1995—),男,江苏无锡人,硕士生。通信联系人:张凤娥(1964—),E-mail:zfelzh@cczu.edu.cn
更新日期/Last Update: 1900-01-01