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<p>hydrogen sulfide can be formed from the reduction of sulfate and the degradation of amino acids and proteins within organic compounds. Sulfates are relatively non-inhibitory to <a href="page.php?w=Methanobacteria">methane forming bacteria</a> but can be reduced to  by <a href="page.php?w=Sulfate-reducing_microorganisms">sulfate reducing bacteria</a>, of which there are several genera.</p>

<p><big>Removal from water</big></p>
<p>A number of processes have been designed to remove hydrogen sulfide from <a href="page.php?w=drinking_water">drinking water</a>.</p><p>
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