Solid non-aqueous phases (NAPs), such as silicone rubber, have been used extensively to improve the removal of volatile organic compounds (VOCs). However, the removal of VOCs is difficult to be further improved because the poor understanding of the mass transfer and reaction processes. Further, the conventional reactors were either complicated or uneconomical. In view of this, herein, an airlift bioreactor with silicone rubber was designed and investigated for dichloromethane (DCM) treatment. The removal efficiency of Reactor 1 (with silicone rubber) was significantly higher than that of Reactor 2 (without silicone rubber), with corresponding higher chloride ion and CO₂ production. It was found that Reactor 1 achieved a much better DCM shock tolerance capability and biomass stability than Reactor 2. Silicone rubber not only enhanced the mass transfer in terms of both gas/liquid and gas/microbial phases, but also decreased the toxicity of DCM to microorganisms. Noteworthily, despite the identical inoculum used, the relative abundance of potential DCM-degrading bacteria in Reactor 1 (91.2%) was much higher than that in Reactor 2 (24.3%) at 216 h. Additionally, the silicone rubber could be automatically circulated in the airlift bioreactor due to the driven effect of the airflow, resulting in a significant reduction of energy consumption.

固体非水相 (NAP)，例如硅橡胶，已被广泛用于改善挥发性有机化合物 (VOC) 的去除。然而，由于对传质和反应过程的了解不足，VOCs的去除效果难以进一步提高。此外，传统的反应器要么复杂要么不经济。鉴于此，本文设计并研究了一种具有硅橡胶的气升式生物反应器，用于二氯甲烷（DCM）处理。反应器1（含硅橡胶）的去除效率明显高于反应器2（不含硅橡胶），相应的氯离子和CO _2较高生产。结果发现，反应器 1 比反应器 2 获得了更好的 DCM 冲击耐受能力和生物质稳定性。硅橡胶不仅增强了气/液相和气相/微生物相的传质，而且降低了 DCM 的毒性。微生物。值得注意的是，尽管使用了相同的接种物，但在 216 小时反应器 1 中潜在的 DCM 降解细菌的相对丰度（91.2%）远高于反应器 2（24.3%）。此外，由于气流的驱动作用，硅橡胶可以在气升生物反应器中自动循环，从而显着降低能耗。