Abstract
This paper reports an unusual occurrence of the rate mineral ettringite, which formed as a result of acid mine drainage treatment at a surface coal mine in northern West Virginia, USA. Ettringite, a hydrated basic sulfate of calcium and aluminum [Ca6Al2(SO4)3OH12 26H2O], forms in high pH environments under oxidizing conditions where sufficient disssolved calcium, aluminum, and sulfate are present. When viewed in relation to the overall goal of mine drainage treatment, namely to produce an effluent that is less detrimental to aquatic biota, ettringite formation documents severe overtreatment of acidic mine waters to the point of producing a highly alkaline effluent that may have adverse effects upon aquatic life.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
