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硝化菌属

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Results of P-uptake experiments show that 11 isolates have denitrifying and P-uptake ability, and JB2 and JB3 identified as Pseudomonas and Alcaligenes have the best P-uptake ability. After 8 h, 13.76 mg/L and 11.85 mg/L PO(superscript 3- subscript 4)-P can be removed.

结果表明有11株菌均具有不同程度反硝化吸磷能力,其中假单胞菌属的JB2和产碱菌属的JB3脱氮除磷效果最好,8h后磷的去除量分别为13.76mg/L和11.85mg/L。

The characters and performance of the biofilm were studied. When the concentration of nitrite is 206.82 mg/L, the velocity of nitrification is 260 mg/L·d. The best performed bacteria, N-20, were identified as Nitrobacter sp.

实验得到了稳定的自养硝化生物膜;当NO-2浓度为206.82mg/L时,生物膜的稳定硝化速率可达260mg/L·d;经鉴定,硝化速率最高的N20菌株属硝化杆菌属(Nitrobactersp。)。

Result The identification showed that the strain ZW38 belonged to Nitrosomonas and ZL5 belonged to Paracoccus.

结果]经鉴定,菌株ZW38属于亚硝化单胞菌属,菌株ZL5属于副球菌属。

The results indicate that (1) After acclimation and induction, Phosphorus Accumulating Organism not only has the characteristics of denitrification, but also has the characteristics of takeup phosphate in aerobic;(2) Denitrifying phosphate accumulating bacteria using NO3- as electron acceptor indeed existed in the conventional enhanced biological phosphorus removal system;(3) The facultative anaerobe seperated during the process of acclimation are Corynebacterium, Pseudodiphtheria corynebacterium, Staphylococcus and Moraxella; all of which can be functioned as denitrifying phosphorus accumulating to various degree.

试验结果表明:(1)好氧聚磷菌经驯化诱导后不但具有反硝化产氮特性,而且具有好氧聚磷特性;(2)在传统的A2O 工艺中存在有以NO3-为电子受体的反硝化聚磷菌;(3)在驯化过程中分离到的兼性厌氧微生物有棒状杆菌属、假白喉棒杆菌、葡萄球菌属及莫拉氏菌属,且都有不同程度的反硝化聚磷功能。

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