Exploring acid mine drainage treatment through adsorption: a bibliometric analysis

Area of Science:

• Environmental Science
• Materials Science
• Bibliometrics

Background:

• Acid mine drainage (AMD) poses significant environmental and public health risks globally.
• Adsorption is a cost-effective and efficient technology for AMD remediation, gaining widespread adoption.
• Understanding the research evolution in adsorption for AMD treatment is crucial for future development.

Purpose of the Study:

• To conduct a bibliometric analysis of recent literature on adsorption for AMD remediation.
• To identify key trends, leading contributors, and prevalent research themes in the field.
• To provide insights for future research directions and stakeholder reference.

Main Methods:

• Bibliometric analysis of Scopus and Web of Science Core Collection datasets (2013-2022).
• Merging and analyzing publication data to identify trends in research output.
• Keyword analysis to determine commonly studied adsorbents and target pollutants.

Main Results:

• A consistent 11% annual increase in research publications on adsorption for AMD remediation.
• China, the United States, and South Africa are the primary contributors to research output.
• Schwertmannites, activated carbon, zeolites, and clay minerals are key adsorbents for metals like arsenic, chromium, iron, and manganese.

Conclusions:

• The study highlights the growing importance and research interest in adsorption for AMD treatment.
• Future research should prioritize sustainable, low-cost solutions, rare earth element recovery, and hybrid technologies.
• Pilot-scale studies, circular economy applications for AMD sludges, and international collaborations are recommended.