School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2022;57(6):510-517. doi: 10.1080/10934529.2022.2083901. Epub 2022 Jun 7.
Anaerobic ammonium oxidation (Anammox) was an innovative process for nitrogen removal. In this study, the influence of sulfate in different concentrations (100, 200, 300, and 400 mg L) on Anammox process were investigated in nine identical sequential batch reactors, four of which were extra supplied for organics, to study the combined effect. The results indicated the obvious inhibition by sulfate which decreased the total nitrogen removal efficiency (TNRE) to 84.1%, 81.2%, 81.2%, and 72.5%, from the control results as 91.9%. Whereas, the organics addition alleviated the inhibitory effect, through consuming the oxygen in influent, promoting the secretion of protein, and inducing the denitrifying bacteria, for which the sulfate only slightly decreased the TNRE to 89.0%, 83.7%, 83.6%, and 75.7%, respectively. and could coexist in Anammox system and cooperatively contribute to the nitrogen removal, when treating the nitrogenous wastewater contains both sulfate and organics.
厌氧氨氧化（Anammox）是一种创新的脱氮工艺。在本研究中，采用 9 个相同的序批式反应器，其中 4 个额外投加有机物，研究了不同浓度（100、200、300 和 400mg/L）的硫酸盐对 Anammox 工艺的影响，以研究其联合作用。结果表明，硫酸盐对总氮去除效率（TNRE）有明显的抑制作用，从对照组的 91.9%分别降至 84.1%、81.2%、81.2%和 72.5%。然而，有机物的添加缓解了抑制作用，通过消耗进水中的氧气、促进蛋白质的分泌以及诱导反硝化细菌的生长，硫酸盐对 TNRE 的抑制作用仅略有降低，分别降至 89.0%、83.7%、83.6%和 75.7%。在处理含有硫酸盐和有机物的含氮废水时， 和 可以在 Anammox 系统中共存，并协同贡献于氮的去除。
