Experimental Study on Bioclogging in Porous Media during the Radioactive Effluent Percolation
Joint Authors
Gui, Rong
Pan, Yu-xiang
Ding, De-xin
Liu, Yong
Zhang, Zhi-jun
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-08
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The sand columns inoculated with the indigenous microorganism (Aspergillus niger) were used to investigate the effect of bioclogging during the radioactive effluent percolation.
The hydraulic gradient, volumetric flow rate, and uranyl ions concentration were monitored over time.
The sand columns were operated with continuous radioactive effluent of uranium tailings reservoir.
After 68 days, the hydraulic conductivity of the sand columns decreased more than 72%, and the adsorption rate of uranyl ions by Aspergillus niger reached more than 90%.
Environmental scanning electron microscope imaging confirmed the biofilm covering the surface of sand particles and connecting sand particles together, which resulted in a reduction of hydraulic conductivity.
The results indicated that the propagation of Aspergillus niger can clog the seepage channel and effectively adsorb the uranyl ions of radioactive effluent in the porous media, which provides a suitable measure for controlling the migration of radioactive effluent of uranium tailings reservoir into the subsurface environment.
American Psychological Association (APA)
Gui, Rong& Pan, Yu-xiang& Ding, De-xin& Liu, Yong& Zhang, Zhi-jun. 2018. Experimental Study on Bioclogging in Porous Media during the Radioactive Effluent Percolation. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1116985
Modern Language Association (MLA)
Gui, Rong…[et al.]. Experimental Study on Bioclogging in Porous Media during the Radioactive Effluent Percolation. Advances in Civil Engineering No. 2018 (2018), pp.1-6.
https://search.emarefa.net/detail/BIM-1116985
American Medical Association (AMA)
Gui, Rong& Pan, Yu-xiang& Ding, De-xin& Liu, Yong& Zhang, Zhi-jun. Experimental Study on Bioclogging in Porous Media during the Radioactive Effluent Percolation. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1116985
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116985