The study looked at how different amounts of sulfate in water affect sulfur removal in model wetlands. They found that as sulfate levels increased, the wetlands removed more sulfate and sulfide. The wetlands were able to reduce sulfide discharge while removing sulfate effectively. The wetlands converted dissolved sulfide into deposited sulfur as a main way of removing sulfide. The main forms of sulfur deposition were elemental sulfur, acid volatile sulfide, and pyrite-sulfur. The study showed that a significant portion of the removed sulfate was deposited in the wetland matrix.