粉煤灰基沸石分子筛现状及其水处理的应用研究
杭州医学院, 医学影像学院, 浙江杭州 310059
| 摘 要： | 随着中国工业的快速发展，煤碳的大规模燃烧导致副产物粉煤灰大量堆积、利用率低，同时湖泊水体因含氮废水大量排入造成严重的富营养化问题。而以粉煤灰为原料合成沸石分子筛对粉煤灰大量堆积和水体富营养化的问题都有一定改善效果，本文针对粉煤灰资源化利用与环境污染治理两个热点问题开展研究，综述了粉煤灰的特性和利用现状，沸石分子筛的分类、合成方法和影响因素，并分析了沸石分子筛在废水处理中的应用和氨氮吸附效果的表征方法，提出了本研究目前存在的问题并分析了未来的发展趋势，以期为后续研究提供理论依据。 |
| 关 键 词： | 粉煤灰; 沸石分子筛; 合成方法; 影响因素; 氨氮吸附 |
| DOI： | 10.57237/j.wjese.2024.01.001 |
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收稿日期: 2023-12-22
接受日期: 2024-01-24
在线出版日期: 2024-03-11
Current Situation of Fly Ash Based Zeolite Molecular Sieve and Its Application in Water Treatment
School of Medical Imaging, Hangzhou Medical College, Hangzhou 310059, China
| Abstract: | With the rapid development of China’s industry, the large-scale combustion of coal carbon leads to a large amount of by-product fly ash accumulation and low utilization rate. At the same time, a large amount of nitrogen-containing wastewater is discharged into lakes, causing serious eutrophication problems. The synthesis of zeolite molecular sieve using fly ash as raw material can improve the problems of large accumulation of fly ash and eutrophication of water body to some extent. In this paper, two hot issues of resource utilization of fly ash and environmental pollution control are studied, and the characteristics and utilization status of fly ash are reviewed, as well as the classification, synthesis methods and influencing factors of zeolite molecular sieve. The application of zeolite molecular sieve in wastewater treatment and the characterization method of ammonia nitrogen adsorption effect were analyzed. The existing problems in this study were put forward and the future development trend was analyzed, in order to provide theoretical basis for the follow-up research. |
| Keywords: | Coal Fly Ash; Zeolite Molecular Sieve; Synthesis Method; Influencing Factors; Ammonia Nitrogen Adsorption |
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