In this study, at an electric current intensity at 60 mA, more than 90.50 ± 4.76% of Sulfamethoxazole (SMX) was degraded. The strengthening of bacterial metabolisms and the sustainment of electrical stimulation contributed to the rapid removal of SMX and nitrates from simulated wastewater by a novel 3D-BER system. From the literature, very few studies have been performed to investigate the high risk of nitrates and antibiotics SMX found in wastewater treatment. The highest antibiotic SMX and nitrogen removal efficiency was 96.45 ± 2.4% (nitrate-N), 99.5 ± 1.5% (nitrite-N), 88.45 ± 1.4% (ammonia-N), 78.6 ± 1.0% (total nitrogen), and SMX (90.50 ± 4.76%), respectively. These results were significantly higher as compared to control system (p < 0.05). The highest denitrification efficiency was achieved at the pH level of 7.0 ± 0.20 ̶ 7.5 ± 0.31. Lower or higher pH value can effect on an approach of heterotrophic-autotrophic denitrification. Moreover, low current intensity did not show any significant effect on the degradation, however, enhanced the removal rate of nitrate or nitrite as well as antibiotic SMX. Based on the results of HPLC and LC-MS/MS analysis, the intermediate products were proposed after efficient biodegradation of SMX. Finally, these results is expected to provide some new insights towards the high electric currents, changes the bacterial community structure, and the activated sludge which played an important role in the biodegradation of SMX and nitrates removal more efficiently.

在这项研究中，在 60 mA 的电流强度下，超过 90.50 ± 4.76% 的磺胺甲恶唑 (SMX) 被降解。细菌代谢的加强和电刺激的维持有助于通过新型 3D-BER 系统从模拟废水中快速去除 SMX 和硝酸盐。从文献来看，很少有研究来调查废水处理中发现的硝酸盐和抗生素 SMX 的高风险。最高的抗生素 SMX 和脱氮效率分别为 96.45 ± 2.4%（硝酸盐-N）、99.5 ± 1.5%（亚硝酸盐-N）、88.45 ± 1.4%（氨-N）、78.6 ± 1.0%（总氮）和 SMX (90.50 ± 4.76%)，分别。与控制系统相比，这些结果显着更高（p < 0.05)。在 7.0 ± 0.20 — 7.5 ± 0.31 的 pH 值范围内实现了最高的反硝化效率。较低或较高的 pH 值会影响异养-自养反硝化的方法。此外，低电流强度对降解没有显着影响，但提高了硝酸盐或亚硝酸盐以及抗生素 SMX 的去除率。根据 HPLC 和 LC-MS/MS 分析结果，提出了 SMX 高效生物降解后的中间产物。最后，这些结果有望为高电流、改变细菌群落结构以及在 SMX 生物降解和更有效地去除硝酸盐中发挥重要作用的活性污泥提供一些新的见解。