Sargasso seaweed is bulldozed into heaps 100 feet back from beaches, but still emitting stench after years of weathering. I would like to neutralize asap after removal from waters edge. H2S rendering adjacent residences uninhabitable.
Are you sure it is hydrogen sulfide only, and not in combination with other decomposition products?
Somehow I doubt chemical solutions will make sense, if you slow down the decomposition seaweed will just pile up which is probably not better. Plus, anything you can add will seep out of the pile contaminating the surroundings.