Under the right conditions, ...

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Under the right conditions, you can precipitate native sulfur which will need to be periodically harvested or it could revert back to sulfate. See the Eh-pH diagram for sulfur. However, as suggested below, iron can be used to sequester sulfur as a metal monosulfide.  The problem is, treatment with this method in perpetuity is unsustainable.  Have you looked at bactericides for ARD source control?  The method was pioneered 30 years ago and has sadly fallen off our remediation radar.  I'm trying to reverse that trend.  Good luck.