The processes of Materia organica polluting pollution fighting anaerobios sulfetogenicos biodegradavel mixed with sulfur compounds reduziveis the H2S with H2S produced being kidnapped the sulfides of FeRRO concomitantly bio sulfetogenese,With the sulfides of iron being removed from the liquid effluent and the despoluido and iron sulphides are accumulated at the bottom of ponds or being sent to landfill or to plants of productionBiologica aerobics quimiossintetica autotrofica ferric sulphate (coagualante