CAJ | 학술논문

分别以乙酸钠(1.8∶1)、柠檬酸钠(3.5∶1)、葡萄糖(3∶1、6∶1、7∶1)、甲醇(3.2∶1)为唯一碳源,研究不同碳源及碳氮比对反硝化细菌活性的影响.结果表明,不同碳源及碳氮比情况下均能实现对硝酸盐的去除,其中,以乙酸钠为碳源时去除效率最高,10 h 去除率可达78.8%;以甲醇为碳源时去除效率最低,24 h去除率为71.9%.以柠檬酸钠和甲醇作为唯一碳源时,观察到亚硝酸盐的积累,峰值分别为16.9 mg ? L -1、15.3 mg ? L -1;以葡萄糖、乙酸钠作为唯一碳源时,亚硝酸盐氮含量较低.用单一底物 Monod 方程模拟不同碳源条件下 NO -3- N 去除情况,发现模拟值与实验值吻合良好.
분별이을산납(1.8∶1)、저몽산납(3.5∶1)、포도당(3∶1、6∶1、7∶1)、갑순(3.2∶1)위유일탄원,연구불동탄원급탄담비대반초화세균활성적영향.결과표명,불동탄원급탄담비정황하균능실현대초산염적거제,기중,이을산납위탄원시거제효솔최고,10 h 거제솔가체78.8%;이갑순위탄원시거제효솔최저,24 h거제솔위71.9%.이저몽산납화갑순작위유일탄원시,관찰도아초산염적적루,봉치분별위16.9 mg ? L -1、15.3 mg ? L -1;이포도당、을산납작위유일탄원시,아초산염담함량교저.용단일저물 Monod 방정모의불동탄원조건하 NO -3- N 거제정황,발현모의치여실험치문합량호.
The sodium acetate (1 .8 1) ,sodium citrate (3 .5 ∶ 1) ,glucose (3 ∶ 1/6 ∶ 1/7 ∶ 1) ,metha‐nol (3 .2 ∶ 1) were chosen as sole carbon source respectively ,and the influences of different kinds of carbon source and carbon nitrogen ratio on denitrifying bacteria activities were investigated .The re‐sults showed that system can achieved nitrate nitrogen removal under all conditions .Among them , when sodium acetate was chosen as sole carbon source ,the highest removal efficacy was achieved by 78 .8% .however ,when methanol was chosen as sole carbon source ,the lowest efficacy was achieved by 71 .9% .Nitrite nitrogen accumulation was observed when sodium citrate and methanol were used as the sole carbon source ,and peak concentration were 16 .9 mg ? L - 1 and 15 .3 mg ? L - 1 respectively . When glucose and sodium acetate were used as sole carbon source respectively ,nitrite nitrogen accu‐mulation didn’t exist Monod equation was used to simulate the dynamics of NO 3 — N degradation un‐der different carbon source conditions ,and the simulated values agreed well with the experimental val‐ues .