高氯酸盐是火箭燃料、弹药、烟花、火柴、肥料和各种其他化合物的一种成分。由于固体火箭燃料高氯酸铵管理不善，在44个州，尤其是西部各州的水域中发现了这种物质。高氯酸盐通过限制甲状腺激素的产生而对健康造成危害。它在水系统中的流动性也很强，因此会对生态系统造成严重威胁。在厌氧条件下，细菌可以将高氯酸盐还原为氯化物。然而，为了完成反应，必须有合适的多电子可转移细菌参与。本研究的目的是确定在厌氧条件下，结合生物脱氮，是否可以从溶液中去除低浓度的高氯酸盐。这项研究的重点是通过生物反应器去除高氯酸盐和硝酸盐，生物反应器中的污泥和一级废水处理工艺的废水以及含有醋酸盐的进水作为碳源。 上流式固定膜生物反应器在10小时的水力停留时间（HRT）下，在硝酸盐氮浓度相对较高（50 mg/L）的情况下，将相对较低的高氯酸盐浓度（100-1000 ug/L）降低到无法检测的水平。HRT为1小时时，去除效率有所降低。包括17个参考文献、表格、图表。

Perchlorate is a component of rocket fuel, munitions, fireworks, matches, fertilizers, and various other compounds. It has been detected in the waters of 44 states, particularly the western states, as a result of mismanagement of the solid rocket fuel ammonium perchlorate. Perchlorate poses a health hazard by restricting the production of hormones in the thyroid gland. It is also highly mobile in aqueous systems and so can create serious threats to ecological systems. Bacteria can reduce perchlorate to chloride under anaerobic conditions. However, to complete the reaction a suitable multi-electron transferable bacterium must be involved. The objective of this study was to determine whether low concentrations of perchlorate could be removed from solution under anaerobic conditions and in conjunction with bio-denitrification. The study focused on the removal of perchlorate and nitrate in conjunction with bioreactors seeded with sludge and effluent from a primary wastewater treatment process and influent water containing acetate as the carbon source. Upflow, fixed-film bioreactors reduced relatively low concentrations of perchlorate (100-1000 ug/L) to non-detectable levels in the presence of relatively high nitrate-nitrogen concentrations (50 mg/L) at a hydraulic retention time (HRT) of 10 hours. An HRT of 1 hour reduced removal efficiencies somewhat. Includes 17 references, tables, figures.