Adsorption of diesel oil onto natural mud shale: from experimental investigation to thermodynamic and kinetic modelling
Adsorption of diesel oil onto natural mud shale: from experimental investigation to thermodynamic and kinetic modelling
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柴油在天然泥页岩上的吸附：从实验研究到热力学和动力学建模
DOI：
10.1080/03067319.2021.1910247
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发表时间：
2021-04
影响因子：
2.6
通讯作者：
Fujia Guan
中科院分区：
文献类型：
--
作者：
Zhenzhen Yu;Kangle Ding;Chao Han;Yi Wu;Mei Zou;Yan Liu;Fujia Guan
本文首次对宜昌地区的一种天然泥页岩（MS）进行了处理含油污水的实验研究。利用各种先进的分析技术，分别表征了所制备的MS颗粒的矿物组成、表面结构和孔径分布。通过设计的吸附实验，考察了MS颗粒对模拟柴油废水的吸附性能。等温和动力学特征进行了研究，根据各种吸附模型。结果表明，MS颗粒表面分布有孔洞、孔洞和裂纹。MS颗粒去除模拟含油废水中柴油的效率与实验条件密切相关，包括MS颗粒的质量，初始柴油水平，停留时间和pH值。平衡吸附等温线符合Langmuir吸附模型，表明柴油在MS颗粒上的吸附倾向于单分子层吸附。柴油在MS上的吸附动力学符合准二级动力学模型。这说明整个除油速率主要受化学吸附控制。我们的研究结果表明，潜在的利用未改性MS颗粒作为一个丰富的和廉价的吸附剂低浓度柴油废水。
ABSTRACT A natural mud shale (MS) from Yichang Area, China was for the first time experimentally examined for its potential application to oily effluents treatment. The mineralogical compositions, surface structures and pore size distribution of the prepared MS particles were characterised using various advanced analytical technologies, respectively. The performance of the MS particles during the model diesel oil wastewater treatment was examined based on the designed adsorption experiments. Isothermal and kinetic features were investigated according to a variety of adsorption models. The results showed that some pores, cavities and fractures were distributed on the surface of MS particles. The efficiency of MS particles for removing diesel oil from the model oily effluent was associated closely with experimental conditions including the mass of MS particles, initial diesel levels, residence time and pH values. Equilibrium adsorption isotherms conformed to Langmuir model, indicating that the adsorption of diesel oil onto MS particles tended to monolayer adsorption. Kinetics of adsorption of diesel oil on MS complied with the pseudo-second-order model. This suggested that the whole oil removal rate was mainly controlled by chemisorption. Results of our study indicates potential utilisation of unmodified MS particles as an abundant and inexpensive adsorbent for low-concentration diesel oil wastewater.
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DOI：
10.1007/978-3-319-95987-0_28
发表时间：
2019
期刊：
Polymers and Polymeric Composites: A Reference Series
影响因子：
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作者：
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影响因子：
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DOI：
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发表时间：
2017
期刊：
Ultrasonics - Sonochemistry
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DOI：
10.1016/j.colsurfa.2018.06.007
发表时间：
2018-09-20
影响因子：
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作者：
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影响因子：
8.6
作者：
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