Dataset accompanying "Modelling anaerobic sulfide removal by sulfide shuttling bacteria"

In anaerobic conditions, haloalkaline sulphide oxidising bacteria (SOB) are able to spatially separate sulphide removal and oxygen consumption, thereby shuttling sulphide from sulphidic to aerobic environments. How SOB anaerobically remove sulphide is not yet fully understood. To further describe sulphide shuttling, anaerobic sulphide removal experiments were performed at different pH from 7.5 to 10. SOB were isolated from bioreactor effluent of a pilot-scale desulphurisation setup, resuspended in 1 M bicarbonate buffer, made anaerobic by flushing with nitrogen gas, and fed 0.35 mM sulphide. For half an hour, the sulphide concentration was measured periodically. Using this dataset, the related publication shows the use of mathematical models to describe anaerobic sulphide removal and its dependency on pH.

在厌氧条件下，嗜盐碱性硫化物氧化菌（haloalkaline sulphide oxidising bacteria, SOB）可通过空间分隔实现硫化物去除与耗氧过程的分离，进而将硫化物从硫化环境转运至有氧环境。目前学界对于SOB厌氧去除硫化物的具体机制尚未完全阐明。为进一步阐释硫化物的转运过程，研究团队在pH 7.5至10的梯度条件下开展了厌氧硫化物去除实验。实验所用的SOB分离自某中试规模脱硫装置的生物反应器出水，将其重悬于1 mol/L碳酸氢盐缓冲液中，通过通氮气吹扫营造厌氧环境，并向体系中投加终浓度为0.35毫摩尔每升的硫化物。在随后的半小时内，研究人员定期测定体系内的硫化物浓度。基于本数据集，相关研究论文通过构建数学模型，阐释了厌氧条件下硫化物的去除过程及其对pH的依赖性。