厌氧氨氧化菌
化学
氮气
膜生物反应器
生物反应器
挥发性悬浮物
亚硝酸盐
铵
无氧运动
制浆造纸工业
色谱法
活性污泥
环境工程
反硝化
污水处理
硝酸盐
生物
环境科学
有机化学
工程类
生理学
反硝化细菌
作者
Shuiyu Sun,Ying Song,Yang Tang,Hanjun Hu,Shangze Wu,Weikang Qi,Yu You Li
标识
DOI:10.1016/j.ces.2018.03.011
摘要
An anaerobic ammonium oxidation (anammox) membrane bioreactor operated at 25 °C was used to investigate nitrogen removal under different operation conditions, namely, different sludge retention time (SRT) and nitrogen loading rate (NLR). The inhibition processes caused by high substance concentrations and over-loading were able to be circumvented by various adjustment methods. Furthermore, specific anammox activity (SAA) tests were performed to evaluate the effects of ammonium and nitrite on the anammox sludge. Over an SRT of 500 d, the content of volatile suspended solids (VSS) gradually increased from 125 mg/L to 5590 mg/L, and the maximum nitrogen removal rate (NRR) reached 1.18 kg N/m3/d. When the SRT was decreased to 50 d, the sludge concentration declined gradually, which necessitated an increase in the sludge loading rate (SLR), and the maximum sludge nitrogen removal rate (SNRR) of 0.67 g total nitrogen (TN)/g VSS/d was achieved at this time.
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