Organic contaminant removal with no adsorbent recycling based on microstructure modification in coal slime filtration

Fu Yafeng; Li Hongliang; Mei Hao; Feng Zeyu; Chen Ruxia; Li Jianbo; Wang Yongmei; Fu Wenbiao

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Organic contaminant removal with no adsorbent recycling based on microstructure modification in coal slime filtration

机译：基于煤粘液过滤中的微观结构改性，无有机污染物除吸附剂再循环

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In coal preparation plants, the tailing coal slime filter cake contains large amounts of super fine particles. It can be hypothesized that the large quantity of organically contaminated water may be purified by a capable filtration process. Meanwhile, the treatment process would be an adsorbent recycling free process, with a roasting process followed in the industry. In this study, methyl blue (MB) was selected as the target organic contaminant, and its removal by filtration was investigated. Meanwhile, the adsorption capacity of MB on Tween-80-modified filter cake was discussed and the spatial structure of the filter was analyzed by micro-CT. With an increasing Tween-80 concentration, the adsorption efficiency of the MB initially increased and reached the maximum adsorption value when the Tween-80 concentration was 60 mg/L, and there was no negative effect on solid-liquid separation. The micro-CT test results indicate that after the modification of Tween-80, the spatial structure of the filter cake was greatly improved, resulting in a relatively stronger adsorption capacity and a higher filtration efficiency. These findings of this study are of great significance for reducing the pollution of water resources and improving the filtration efficiency in the coal washing plant.

机译：在煤炭制备厂中，尾煤粘液滤饼含有大量的超细颗粒。可以假设大量的有机污染的水可以通过能力的过滤过程纯化。同时，治疗方法是一种吸附剂回收自由过程，具有烘焙过程，然后在该行业中进行。在该研究中，选择甲基蓝（MB）作为靶有机污染物，并研究过滤的除去。同时，讨论了MB对Tween-80改性滤饼的吸附能力，通过微型CT分析过滤器的空间结构。随着吐温-80浓度的增加，Mb的吸附效率最初增加并在吐温-80浓度为60mg / L时达到最大吸附值，并且对固液分离没有负面影响。微型CT试验结果表明，在修改Tween-80后，滤饼的空间结构大大提高，得到了相对较强的吸附能力和更高的过滤效率。该研究的这些发现对于降低水资源的污染以及提高洗涤厂的过滤效率具有重要意义。

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来源
《Fuel》 |2021年第15期|119630.1-119630.11|共11页
作者
Fu Yafeng; Li Hongliang; Mei Hao; Feng Zeyu; Chen Ruxia; Li Jianbo; Wang Yongmei; Fu Wenbiao;
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作者单位

Taiyuan Univ Technol Coll Min Engn Taiyuan 030024 Peoples R China;

Taiyuan Univ Technol Coll Min Engn Taiyuan 030024 Peoples R China|Univ Alberta Dept Chem & Mat Engn Edmonton AB T6G 2V4 Canada;

Taiyuan Univ Technol Coll Min Engn Taiyuan 030024 Peoples R China;

Taiyuan Univ Technol Coll Min Engn Taiyuan 030024 Peoples R China;

Taiyuan Univ Technol Coll Min Engn Taiyuan 030024 Peoples R China;

Univ Autonoma San Luis Potosi Doctorado Inst Ingn & Ciencia Mat Av Sierra Leona 530 San Luis Potosi 78210 San Luis Potosi Mexico;

Shandong Univ Sci & Technol Coll Safety & Environm Engn Qingdao 266590 Peoples R China;

Shanxi Transportat New Technol Dev Co Ltd Taiyuan 030006 Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Organic contaminants; Filter cake; Spatial structure; X-ray microtomography; Modification;

机译：有机污染物;滤饼;空间结构;X射线显微镜图;修改;

Organic contaminant removal with no adsorbent recycling based on microstructure modification in coal slime filtration

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