Hydrogen sulphide (H₂S) must be treated at its emission source to avoid health risks, odour, and corrosion. Conventional physico-chemical H₂S removal technologies (for example, membrane contactors or chemical scrubbers) have several limitations, such as requiring high amounts of absorption chemicals and energy. In contrast, biological H₂S removal technologies are environment friendly, easy to operate, and less expensive due to their low energy requirements. In this study, the feasibility of a porous hydrophilic polyethersulfone hollow fibre membrane bioreactor (HFMB) was tested for the biological removal of gas-phase H₂S by employing three lab-scale reactors (two biotic and one abiotic). The HFMBs were operated at ~20 °C for ~3 months, employing different H₂S inlet loading rates (ILR) and an empty bed residence time of 187 s.

中文翻译：

---

中空纤维膜生物反应器中气相H2S的生物去除

硫化氢 (H ₂ S) 必须在其排放源处进行处理，以避免健康风险、气味和腐蚀。传统的物理化学 H ₂ S 去除技术（例如，膜接触器或化学洗涤器）有几个限制，例如需要大量的吸收化学品和能量。相比之下，生物 H ₂ S 去除技术由于其低能源需求而环保、易于操作且成本较低。在这项研究中，测试了多孔亲水性聚醚砜中空纤维膜生物反应器（HFMB）用于生物去除气相H _{2的可行性。}S 通过使用三个实验室规模的反应器（两个生物和一个非生物）。HFMB 在约 20 °C 下运行约 3 个月，采用不同的 H ₂ S 入口负载率 (ILR) 和 187 秒的空床停留时间。