• 关键词：生物脱氮  厌氧氨氧化  铁离子  性能

• 基金项目：国家自然科学基金(No.30770039)

• 张蕾
• 浙江大学环境与资源学院, 杭州 310029

• 郑平
• 浙江大学环境与资源学院, 杭州 310029

• 胡安辉
• 浙江大学环境与资源学院, 杭州 310029

• 摘要：考察了铁离子对厌氧氨氧化反应器性能的影响.研究发现,经过205d的连续培养,添加铁离子可提高反应器的基质转化能力,铁离子浓度为0.075mmol·L^-1时,反应器对NH⁴⁺-N和NO^2--N的最大去除速率分别为对照(铁离子浓度0.03mmol·L^-1)的1.8倍和1.6倍;添加铁离子可促进厌氧氨氧化菌生长,以NO₃^--N产生量和挥发

• Abstract：The effect of ferrous ion on the performance of an anaerobic ammonium oxidation (anammox) reactor was investigated. The substrate removal rate of the reactor was boosted by addition of ferrous ion within 205 d. The maximum NH₄⁺-N and NO₂^--N removal rate with 0.075 mmol·L^-1 Fe²⁺ was 1.8-fold and 1.6-fold of the control (Fe²⁺ concentration = 0.03 mmol·L^-1). Microbial growth,denoted by production of nitrate and volatile solids (VS),was also enhanced. The biomass increment at 0.075 mmol·L^-1 Fe²⁺ was 1.36-fold over the control,and the VS of the test reactor was 2.15-fold of the control. The anammox bacteria varied in cellular structure under iron-replete conditions (0.075 mmol·L^-1). An unknown grey area appeared between the light area and the dark area,which was unprecedented in anammox bacteria. Based on this research,anammox bacteria have a large demand for iron and the former medium for the anammox bacteria was iron limited.

• Key words：biological nitrogen removal  anaerobic ammonium oxidation (anammox)  ferrous ion  performance

• 
  摘要点击次数： 3206 全文下载次数： 3438