Anaerobic polluted sediments 2 Anaerobiosis 2 Argentina 2 Biodegradation, Environmental 2 Bioheap leaching 2 Buenos Aires [Argentina] 2 Environmental Restoration and Remediation 2 Geologic Sediments 2 Heavy metals 2 Metals, Heavy 2 Reconquista River 2 Reconquista basin 2 Remediation strategy 2 Rivers 2 Sulphur-oxidizing bacteria 2 Water Pollutants, Chemical 2 acidification 2 anaerobic growth 2 analysis 2 anoxic sediment 2 aqueous solution 2 bacterium 2 bioremediation 2 chemistry 2 concentration (composition) 2 drainage basin 2 ecosystem restoration 2 heavy metal 2 metabolism 2 metal 2