Mitigation of mine tailings dust with green biopolymer

Rui Chen, Lianyang Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Mine tailings (MT) dust is a major environmental concern. Many efforts have been attempted to mitigate MT dust, but all have limitations. The present study investigates the feasibility of utilizing two natural and renewable biopolymers, guar gum and xanthan gum, for MT dust mitigation. Moisture retention tests were performed to evaluate the water retention capacity of MT samples treated with guar gum and xanthan gum solutions at different concentrations. Wind tunnel tests were conducted to investigate the weight loss of biopolymer-treated MT samples after blowing wind for certain period of time. Scanning electron microscopy (SEM) imaging was also performed to investigate the microstructure of biopolymer-treated MT. The results indicate that the two biopolymers are effective in increasing the moisture-retention capacity and improving the dust resistance of MT.

Original languageEnglish (US)
Title of host publicationGeotechnical Special Publication
PublisherAmerican Society of Civil Engineers (ASCE)
Pages2198-2205
Number of pages8
Edition234 GSP
ISBN (Print)9780784413272
DOIs
StatePublished - 2014
Event2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014 - Atlanta, GA, United States
Duration: Feb 23 2014Feb 26 2014

Other

Other2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014
CountryUnited States
CityAtlanta, GA
Period2/23/142/26/14

Fingerprint

Biopolymers
Tailings
tailings
Dust
mitigation
dust
Xanthan gum
Moisture
moisture
water retention
Blow molding
wind tunnel
Wind tunnels
microstructure
scanning electron microscopy
Imaging techniques
Microstructure
Scanning electron microscopy
Water

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering
  • Building and Construction
  • Architecture

Cite this

Chen, R., & Zhang, L. (2014). Mitigation of mine tailings dust with green biopolymer. In Geotechnical Special Publication (234 GSP ed., pp. 2198-2205). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784413272.214

Mitigation of mine tailings dust with green biopolymer. / Chen, Rui; Zhang, Lianyang.

Geotechnical Special Publication. 234 GSP. ed. American Society of Civil Engineers (ASCE), 2014. p. 2198-2205.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chen, R & Zhang, L 2014, Mitigation of mine tailings dust with green biopolymer. in Geotechnical Special Publication. 234 GSP edn, American Society of Civil Engineers (ASCE), pp. 2198-2205, 2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014, Atlanta, GA, United States, 2/23/14. https://doi.org/10.1061/9780784413272.214
Chen R, Zhang L. Mitigation of mine tailings dust with green biopolymer. In Geotechnical Special Publication. 234 GSP ed. American Society of Civil Engineers (ASCE). 2014. p. 2198-2205 https://doi.org/10.1061/9780784413272.214
Chen, Rui ; Zhang, Lianyang. / Mitigation of mine tailings dust with green biopolymer. Geotechnical Special Publication. 234 GSP. ed. American Society of Civil Engineers (ASCE), 2014. pp. 2198-2205
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