Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Acid neutralization within limestone sand reactors receiving coal mine drainage.

Barnaby J Watten1, Philip L Sibrell, Michael F Schwartz

  • 1United States Geological Survey, Leetown Science Center, 11649 Leetown Road, Kearneysville, WV 25430, USA. barnaby_watten@usgs.gov

Environmental Pollution (Barking, Essex : 1987)
|June 21, 2005
PubMed
Summary

This study shows pulsed bed treatment effectively neutralizes acid mine drainage (AMD) using carbon dioxide (CO2) and limestone, generating alkalinity and removing acidity. The process shows promise for AMD remediation by raising pH and precipitating metals.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Tissue Regeneration with Hydrogel Encapsulation: A Review of Developments in Plants and Animals.

Biodesign research·2023
Same author

Establishing a reproducible approach to study cellular functions of plant cells with 3D bioprinting.

Science advances·2022
Same author

Denitrifying woodchip bioreactor and phosphorus filter pairing to minimize pollution swapping.

Water research·2017
Same author

Efficacy of pH elevation as a bactericidal strategy for treating ballast water of freight carriers.

Journal of advanced research·2015
Same author

An evaluation of the residual toxicity and chemistry of a sodium hydroxide-based ballast water treatment system for freshwater ships.

Environmental toxicology and chemistry·2015
Same author

Bactericidal efficacy of elevated pH on fish pathogenic and environmental bacteria.

Journal of advanced research·2015

Area of Science:

  • Environmental Engineering
  • Water Treatment Technologies
  • Acid Mine Drainage Remediation

Background:

  • Acid mine drainage (AMD) poses significant environmental challenges due to its acidity and high metal content.
  • Conventional AMD treatment methods can be costly and generate large volumes of sludge.
  • Developing efficient and cost-effective AMD treatment is crucial for environmental protection.

Purpose of the Study:

  • To evaluate the efficacy of pulsed bed treatment for acid mine drainage (AMD).
  • To investigate the role of carbon dioxide (CO2) and intermittent fluidization in AMD neutralization.
  • To assess the process's ability to generate acid neutralization capacity and remove metals.

Main Methods:

  • A prototype pulsed bed reactor with a capacity of 60 L/min was utilized.

Related Experiment Videos

  • Tests involved varying CO2 dosage and fluidization/contraction periods.
  • Field trials were conducted on three different AMD sources.
  • Numerical modeling was employed to optimize CO2 requirements.

    • Main Results:

    • Effective removal of H+ acidity (196-584 mg/L CaCO3) was achieved, with surplus alkalinity generated.
    • Effluent alkalinity correlated with CO2 dosage (DC) via the model Alkalinity=31.22+2.97(DC)0.5.
    • The process raised AMD pH sufficiently to precipitate Fe3+ and Al3+, but not Fe2+ and Mn2+.
    • Altering fluidization parameters impacted energy dissipation and bed expansion but not alkalinity.

    Conclusions:

    • Pulsed bed treatment is a viable technology for neutralizing AMD and generating alkalinity.
    • CO2 requirements can be reduced by increasing AMD acidity and recycling CO2.
    • The process effectively removes key contaminants, offering a promising solution for AMD pollution control.