Antimony removal from wastewater by sulfate-reducing bacteria in a bench-scale upflow anaerobic packed-bed reactor
作者： Jingjing Chen , Guoping Zhang , Chao Ma , Dongli Li
DOI: 10.1007/S11631-019-00382-6
关键词: Carbon 、 Precipitation (chemistry) 、 Antimony 、 Yield (chemistry) 、 Sulfate-reducing bacteria 、 Nuclear chemistry 、 Wastewater 、 Packed bed 、 Aqueous solution 、 Chemistry
摘要: The objective of this research was to study the precipitation Sb and stability Sb2S3 during treatment synthetic Sb(V) wastewater by sulfate-reducing bacteria (SRB). We investigated transformation Sb, as well re-dissolution under different pH carbon sources. results showed that aqueous depend on conversion between Sb(III)-S(-II) complexes precipitates. These processes were highly pH-dependent, a decrease in enhanced reduction observed. newly formed found be unstable could re-dissolve through complexation with H2S due increase pH. When decreased approximately 6.5, almost completely transformed into precipitates, precipitates relatively stable. Compared lactate source, ethanol resulted comparable yield low was, therefore, more conducive removal Sb(V). suggest when removing SRB, it is important control at level.
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