煤矸石复合吸附剂对Zn<sup>2+</sup>的吸附性能

张铁军; 宋矗森; 陈莉荣; 姜庆宏; 苏洁; 王哲

doi:10.16803/j.cnki.issn.1004-6216.2016.05.019

环境保护科学

煤矸石复合吸附剂对Zn²⁺的吸附性能

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张铁军, 宋矗森, 陈莉荣, 姜庆宏, 苏洁, 王哲. 煤矸石复合吸附剂对Zn2+的吸附性能[J]. 环境保护科学, 2016, (5): 96-101. doi: 10.16803/j.cnki.issn.1004-6216.2016.05.019

引用本文:

张铁军, 宋矗森, 陈莉荣, 姜庆宏, 苏洁, 王哲. 煤矸石复合吸附剂对Zn²⁺的吸附性能[J]. 环境保护科学, 2016, (5): 96-101. doi: 10.16803/j.cnki.issn.1004-6216.2016.05.019

Zhang Tiejun, Song Chusen, Chen Lirong, Jiang Qinghong, Su Jie, Wang Zhe. Adsorption Capability of Compound Coal Gangue Adsorbent to Zn2+[J]. Environmental Protection Science, 2016, (5): 96-101. doi: 10.16803/j.cnki.issn.1004-6216.2016.05.019

Citation:

Zhang Tiejun, Song Chusen, Chen Lirong, Jiang Qinghong, Su Jie, Wang Zhe. Adsorption Capability of Compound Coal Gangue Adsorbent to Zn²⁺[J]. Environmental Protection Science, 2016, (5): 96-101. doi: 10.16803/j.cnki.issn.1004-6216.2016.05.019

煤矸石复合吸附剂对Zn²⁺的吸附性能

内蒙古科技大学能源与环境学院, 内蒙古包头 014010

作者简介: 张铁军(1978-),男,讲师。研究方向:污染介质的修复原理与技术。E-mail:higcztj@126.com

基金项目:
内蒙古科技大学创新基金(2014QDL052)资助
中图分类号: X752

Adsorption Capability of Compound Coal Gangue Adsorbent to Zn²⁺

School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, China
Fund Project:

摘要: 采用某洗煤厂的煤矸石和天然粘土石灰石作为主要原料,添加适量的氯化铝制备吸附剂对Zn²⁺进行吸附,运用SEM技术对吸附剂进行了表征,研究了不同因素对Zn²⁺去除率的影响,并探讨了吸附机理。实验结果表明:当反应温度为20℃、振荡时间为70 min、废水pH为6、吸附剂投加量为0.5 g时,Zn²⁺去除率达到96.28%。煤矸石复合吸附剂对Zn²⁺的吸附符合准二级动力学方程,在高浓度时符合Langmuir等温吸附模型低浓度时符合Freundlich等温吸附模型,且吸附是易发生的。
- 复合吸附剂 /
- 煤矸石 /
- 锌离子 /
- 吸附等温线 /
- 吸附动力学
Abstract: In this study, coal gangue and natural clay limestone from one coal washery was used as the main materials with addition of moderate aluminum chloride for Zn²⁺ adsorption. The adsorbent was characterized by SEM and the influences of d factors on Zn²⁺ removal rate were studied. The adsorption mechanism was also discussed. The experimental result showed that when the reaction temperature was 20℃, pH of the wastewater was 6, the adsorbent dosage was 0.5 g, and the oscillating time was 70 min, the removal rate of Zn²⁺ reached to 96.28%. The adsorption of Zn²⁺ on the compound coal gangue adsorbent complied with the pseudo-second-order kinetics equation and conformed to the Langmuir adsorption model at the Freundlich adsorption model at low, with the adsorption easy to occur.
- Compound Adsorbent /
- Coal Gangue /
- Zinc Ion /
- Adsorption Isotherm /
- Adsorption Kinetics

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张铁军, 宋矗森, 陈莉荣, 姜庆宏, 苏洁, 王哲. 煤矸石复合吸附剂对Zn2+的吸附性能[J]. 环境保护科学, 2016, (5): 96-101. doi: 10.16803/j.cnki.issn.1004-6216.2016.05.019

引用本文:

Citation:

煤矸石复合吸附剂对Zn²⁺的吸附性能

作者简介: 张铁军(1978-),男,讲师。研究方向:污染介质的修复原理与技术。E-mail:higcztj@126.com
内蒙古科技大学能源与环境学院, 内蒙古包头 014010

收稿日期: 2016-07-28

基金项目:

内蒙古科技大学创新基金(2014QDL052)资助

关键词:

摘要: 采用某洗煤厂的煤矸石和天然粘土石灰石作为主要原料,添加适量的氯化铝制备吸附剂对Zn²⁺进行吸附,运用SEM技术对吸附剂进行了表征,研究了不同因素对Zn²⁺去除率的影响,并探讨了吸附机理。实验结果表明:当反应温度为20℃、振荡时间为70 min、废水pH为6、吸附剂投加量为0.5 g时,Zn²⁺去除率达到96.28%。煤矸石复合吸附剂对Zn²⁺的吸附符合准二级动力学方程,在高浓度时符合Langmuir等温吸附模型低浓度时符合Freundlich等温吸附模型,且吸附是易发生的。

English Abstract

Adsorption Capability of Compound Coal Gangue Adsorbent to Zn²⁺

School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, China

Received Date: 2016-07-28

Fund Project:

Keywords:

Abstract: In this study, coal gangue and natural clay limestone from one coal washery was used as the main materials with addition of moderate aluminum chloride for Zn²⁺ adsorption. The adsorbent was characterized by SEM and the influences of d factors on Zn²⁺ removal rate were studied. The adsorption mechanism was also discussed. The experimental result showed that when the reaction temperature was 20℃, pH of the wastewater was 6, the adsorbent dosage was 0.5 g, and the oscillating time was 70 min, the removal rate of Zn²⁺ reached to 96.28%. The adsorption of Zn²⁺ on the compound coal gangue adsorbent complied with the pseudo-second-order kinetics equation and conformed to the Langmuir adsorption model at the Freundlich adsorption model at low, with the adsorption easy to occur.