CAJ | 학술논문

接种0～4℃贮存2个月亚硝酸盐反硝化颗粒污泥,以甲醇为电子供体、亚硝酸盐为电子受体在USB(上流式污泥床)反应器内进行二次启动.结果显示,在逐步提高进水负荷下,约46 d完成了反应器二次启动,污泥床负荷达到3.43 g N/(L·d),NO2-N去除率为99%;在稳定运行阶段,当进水NO2-N浓度为50 mg/L、负荷从1.7 g N/(L·d)逐步提高至5.1 g N/(L·d)时,NO2-N去除率均大于98%;当表观流速为2.68 m/h、进水负荷逐步提高至8.0 g N/(L·d)时,脱氮率下降至63%,过程中污泥床最大去除速率约为5.7 g N/(L·d).研究认为,亚硝酸盐颗粒污泥床具有稳定和去除效率高等特点.
접충0～4℃저존2개월아초산염반초화과립오니,이갑순위전자공체、아초산염위전자수체재USB(상류식오니상)반응기내진행이차계동.결과현시,재축보제고진수부하하,약46 d완성료반응기이차계동,오니상부하체도3.43 g N/(L·d),NO2-N거제솔위99%;재은정운행계단,당진수NO2-N농도위50 mg/L、부하종1.7 g N/(L·d)축보제고지5.1 g N/(L·d)시,NO2-N거제솔균대우98%;당표관류속위2.68 m/h、진수부하축보제고지8.0 g N/(L·d)시,탈담솔하강지63%,과정중오니상최대거제속솔약위5.7 g N/(L·d).연구인위,아초산염과립오니상구유은정화거제효솔고등특점.
The secondary start-up,using methanol as electron donor and nitrite as electron accepter,was completed within 46 days in the USB reactor,which was inoculated nitrite denitrifying granular sludge that had been deposited under 0～4℃ for two months.The results showed that the loading rate of USB reactor was 3.43 nitrite removal rate was more than 98%.When the superficial water velocity was 2.68 m/h.the loading rate of sessed of stabilization and high removal efficiencies.