CAJ | 학술논문

通过血清瓶批试研究了温度为25℃时,粒径为R1(>2.5mm),R2(1.5~2.5mm),R3(0.5~1.5mm)的厌氧氨氧化(anammox)颗粒污泥的脱氮特性.R1,R2,R3的厌氧氨氧化TN去除速率分别为0.555,0.423,0.456kgN/(kgVSS?d),R1的TN去除活性最大,R2和R3的TN去除活性相差不大.anammox 颗粒污泥的厌氧氨氧化 TN 去除、亚硝态氮反硝化、硝态氮反硝化、好氧氨氧化、好氧亚硝态氮氧化速率平均值分别为0.478,0.028,0.037,0.050,0.033kgN/(kgVSS?d).扫描电镜显示 anammox 颗粒污泥表面存在孔洞,有助于缓解粒径对传质效率的不利影响.颗粒污泥外部以球状菌为主,可能为好氧氨氧化菌(AOB),有助于缓解氧气对 anammox 菌的抑制作用；颗粒污泥内部以火山口状的细菌为主,可能为anammox菌.
통과혈청병비시연구료온도위25℃시,립경위R1(>2.5mm),R2(1.5~2.5mm),R3(0.5~1.5mm)적염양안양화(anammox)과립오니적탈담특성.R1,R2,R3적염양안양화TN거제속솔분별위0.555,0.423,0.456kgN/(kgVSS?d),R1적TN거제활성최대,R2화R3적TN거제활성상차불대.anammox 과립오니적염양안양화 TN 거제、아초태담반초화、초태담반초화、호양안양화、호양아초태담양화속솔평균치분별위0.478,0.028,0.037,0.050,0.033kgN/(kgVSS?d).소묘전경현시 anammox 과립오니표면존재공동,유조우완해립경대전질효솔적불리영향.과립오니외부이구상균위주,가능위호양안양화균(AOB),유조우완해양기대 anammox 균적억제작용；과립오니내부이화산구상적세균위주,가능위anammox균.
The nitrogen removal performance of anammox (anaerobic ammonium oxidation) granules in different sizes R1(above 2.5mm), R2(1.5~2.5mm), and R3(0.5~1.5mm) were investigated by serum bottle batch tests under 25℃.The specific anammox activities of granules R1, R2, R3 were 0.555, 0.423, 0.456kgN/(kgVSS?d), respectively. The value of R1was the highest, while the values of R2 and R3 were similar. The average specific anammox activity, denitrification activity of nitrite, denitrification activity of nitrate, aerobic ammonium oxidation activity and aerobic nitrite oxidation activity were 0.478,0.028,0.037,0.050,0.033kgN/(kgVSS?d), respectively. The SEM indicated that some holes lied in the outer part of anammox granule, which redused the adverse effects of particle size on mass transfer efficiency. In the outer part of anammox granule, bacteria were mainly spherical, which may be AOB. In the inner part of the anammox granule, the bacteria were mainly crater-shaped, which should be anammox bacteria. Owing to this structure, the anammox bacterium was able to relieve from the adverse effects of oxygen.