It is feasible to integrate an anaerobic membrane bioreactor with a membrane aerated biofilm reactor to efficiently implement the sulfate reduction, simultaneous nitrification and autotrophic denitrification process. However, the effect of parameters on nutrient removal and environmental impacts of the process are unclear. In this study, the reactor performance was mainly influenced by the chemical oxygen demand to sulfate (COD/S) ratio and the ammonium to sulfate (N/S) ratio in long-term operation. Significant models were developed to optimize the two factors using the response surface methodology. Under optimal conditions (COD/S ratio of 2.5 and N/S ratio of 0.3), the system could remove above 86 % COD, 99 % ammonium, and 92 % total inorganic nitrogen. Moreover, this process could reduce energy consumption by 30 % and global warming potential by 50 % compared with traditional anaerobic/oxic activated sludge process. These findings provide guidance for the application of this technology in sulfate-containing municipal sewage treatment.

中文翻译：

---

通过调节营养比例，在厌氧膜生物反应器和曝气膜生物膜反应器中实现高效的自养氮去除


将厌氧膜生物反应器与曝气膜生物膜反应器集成在一起，以有效地实施硫酸盐还原、同步硝化和自养反化过程是可行的。然而，参数对营养物质去除和该过程的环境影响尚不清楚。本研究主要影响反应器长期运行中的化学需氧量与硫酸盐 （COD/S） 比值和铵态硫酸盐比 （N/S）。使用响应面方法开发了显著模型来优化这两个因子。在最佳条件下（COD/S 比为 2.5，N/S 比为 0.3），该系统可以去除 86% 以上的 COD、99% 的铵和 92% 的总无机氮。此外，与传统的厌氧/含氧活性污泥工艺相比，该工艺可以减少 30% 的能源消耗和 50% 的全球变暖潜能值。这些发现为该技术在含硫酸盐城市污水处理中的应用提供了指导。