利用需氧反硝化細菌處理廢水的潛在應用價值

A bacterium strain HS-03 was isolated from the activated sludge plant in a suburb of Wuhan city, China which has been found to be capable of aerobic denitrification. The effect of different inoculated amounts of pre-cultured media was analyzed. The denitrifying rates of this strain under aerobic and micro-anaerobic conditions were compared. The result indicated that the rate was almost not affected by the presence of oxygen. 10m M nitrate was removed more than 90% in 36 hours by this bacterium in the specific medium. During the denitrifying process, nitrite was always kept at very low level. The denitrification potential of this bacterium was evaluated to treat artificial wastewater under fully aerobic conditions. Main biochemical and physiological features of this strain were characterized. The 16S rDNA sequence was compared with the published data in GenBank by using BLAST. The BLAST level of similarity to Pseudomonas stutzeri was 99.1%. These results of phenotype and genotype proved that the strain HS03 was a new strain belonging to the species of P. stutzeri.

作 者： LI Ping LIU De-Li ZHENG Yong-Liang JIANG Yue ZHANG Shan CHEN Shu-Li   作者單位： College of Life Sciences, Central China Normal University, Wuhan, Hubei 430079, P. R. China  刊 名： 水生生物學報  ISTIC PKU 英文刊名： ACTA HYDROBIOLOGICA SINICA  年，卷(期)： 2006 30(6)  分類號： X172  關鍵詞： Aerobic denitrification   Wastewater treatment   Identification  

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