通过硝化和反硝化作用参与工业废水脱氮的细菌微生物区系。
Bacterial microflora participating in the removal of nitrogen from industrial wastewaters by nitrification and denitrifaction.
作者信息
Krogulska B, Mycielski R
出版信息
Acta Microbiol Pol. 1984;33(1):67-76.
Nitrification and denitrification were used to purify industrial nitrogenous-organic wastewaters containing 1,130 mg N/l (mainly in the form of ammonium and urea) and with mean COD 1,050 mg O2/l. The use of a five-step system consisting of two denitrifying beds and three nitrifying activated sludge reactors gave 99% removal of nitrogen and 54% reduction in COD during total retention time of the wastes of 81 hours. The participation of stage I nitrifying bacteria in the activated sludge was 4.4 to 5.8% and of stage II nitrifying bacteria 21.9 to 53.8%. Denitrifying bacteria in the denitrifying beds accounted for 90% of the isolated population, which was dominated by Alcaligenes faecalis and Paracoccus denitrificans.
采用硝化和反硝化工艺处理含有1130 mg N/l（主要以铵和尿素形式存在）且平均化学需氧量（COD）为1050 mg O2/l的工业含氮有机废水。使用由两个反硝化床和三个硝化活性污泥反应器组成的五步系统，在废水总停留时间为81小时的情况下，氮去除率达到99%，COD降低了54%。活性污泥中I期硝化细菌的占比为4.4%至5.8%，II期硝化细菌的占比为21.9%至53.8%。反硝化床中的反硝化细菌占分离菌群的90%，其中以粪产碱菌和脱氮副球菌为主。
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