沸石吸附制氢尾液中NH4+和K+的动力学与热力学分析

周小楷; 张凯; 荆艳艳; 张全国; 路朝阳

doi:10.19912/j.0254-0096.tynxb.2025-0157

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沸石吸附制氢尾液中NH₄⁺和K⁺的动力学与热力学分析

更新时间：2026-07-22

- 沸石吸附制氢尾液中NH₄⁺和K⁺的动力学与热力学分析
- Vol. 47, Issue 6, Pages: 601-606(2026)
- 作者机构：
- 作者简介：
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- DOI：10.19912/j.0254-0096.tynxb.2025-0157
  CLC： X71
- Online First：08 July 2026，
  
  Published：2026
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周小楷, 张凯, 荆艳艳, et al. 沸石吸附制氢尾液中NH₄⁺和K⁺的动力学与热力学分析[J]. 2026, 47(6): 601-606. DOI: 10.19912/j.0254-0096.tynxb.2025-0157.
DOI：

周小楷, 张凯, 荆艳艳, et al. 沸石吸附制氢尾液中NH₄⁺和K⁺的动力学与热力学分析[J]. 2026, 47(6): 601-606. DOI: 10.19912/j.0254-0096.tynxb.2025-0157. DOI：

摘要

为实现光发酵制氢尾液营养物质的回收利用

以天然沸石为吸附材料

采用动力学和热力学分析方法

研究沸石吸附光发酵制氢尾液中NH4+和K+的能力。研究发现

在吸附时间和温度分别为2 h、35 ℃时

沸石对NH4+的吸附能力较强

吸附量为1.82 mg/g;当吸附时间为3 h、温度为45 ℃时

K+在沸石上的吸附最佳

为7.11 mg/g。准二级动力学更适合描述NH4+和K+在沸石上的吸附

且K+在沸石上的吸附是非自发的吸热熵增反应

而NH4+的吸附是非自发的放热熵减反应。

Abstract

In order to achieve the recycling of nutrients in photo-fermentation hydrogen production tailing liquid

the adsorption capacity of zeolite on NH and K in photo-fermentation hydrogen production tailing liquid was investigated using natural zeolite as adsorbent and kinetic and thermodynamic analyses were carried out. It is found that the adsorption of zeolite on NH and K in photo-fermentation hydrogen production tailing liquid exhibites a tendency of accelerated adsorption

then gradually reaches balance

which is attained at 2 h and 3 h of adsorption

respectively. When adsorption time is 2h and adsorption temperature is 35 ℃

zeolite demonstrates stronger adsorption capacity for NH with an adsorption of 1.82 mg/g. When adsorption time is 3 h and adsorption temperature is 45 ℃

zeolite exhibites its maximum adsorption capacity for K

reaching 7.11 mg/g. The quasi-secondary kinetic model provides a superior description for the adsorption process. The adsorption process of zeolite on NH and K in the tailing liquid of photo-fermentation hydrogen production is non-spontaneous. The adsorption of NH by zeolite is characterised as an exothermic entropy reduction reaction

while the adsorption of K is identified as an adsorptive entropy increase reaction.

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