Desulfurization of sour water was investigated in a combination system of trickling biofilter (BTF) and biofilter (BF) filled with ceramic packing materials. A critical elimination capacity (EC) of 251.93 g S m⁻³ h⁻¹ was obtained for the BTF/BF system during a stepwise increase of sulfide concentration from 10 to 60 g S m⁻³. This stepwise increment of loading rate also led to critical ECs of 176.21 and 478.88 g S m⁻³ h⁻¹ for BTF and BF, respectively. A dynamic model describing biological H₂S removal from sour water in the BTF/BF was developed and calibrated by a set of experimental data. The model includes the main processes occurring in the BTF/BF such as mass transfer between phases, diffusion and biological reaction inside the biofilm. The model also considers the intermediate (elemental sulfur) production/consumption and sulfate formation through the different oxidation pathways. The model validation was performed under a starvation period and a dynamic H₂S loading period. A sensitivity analysis was carried out to evaluate the relative importance of the key parameters on the performance of the BTF/BF system. Sensitivity analysis showed that the BTF performance is more affected by the parameters related to H₂S mass transfer.

在滴流式生物滤池（BTF）和填充有陶瓷填料的生物滤池（BF）的组合系统中研究了酸性水的脱硫。在硫化物浓度从10 g S m ^-3逐步增加到BTF / BF时，获得的临界消除能力（EC）为251.93 g S m ^-3 h ^-1。加载速率的逐步增加还导致BTF和BF的临界EC分别为176.21和478.88 g S m ^-3 h ^-1。描述生物H _2的动力学模型开发了BTF / BF中的酸性水中S的去除方法，并通过一组实验数据进行了校准。该模型包括BTF / BF中发生的主要过程，例如相之间的质量转移，生物膜内部的扩散和生物反应。该模型还考虑了通过不同氧化途径的中间（元素硫）生产/消耗和硫酸盐形成。在饥饿期和动态H ₂ S加载期下进行模型验证。进行了敏感性分析，以评估关键参数对BTF / BF系统性能的相对重要性。敏感性分析表明，与H ₂ S传质相关的参数对BTF性能的影响更大。