连续流亚硝化中试反应器的启动及其能力提升
发布时间：2019-08-06 10:22
【摘要】：通过接种污水处理厂压滤后污泥,添加悬浮填料进行挂膜,采用连续流反应器处理模拟氨氮污水,对反应器的游离氨(FA)、游离亚硝酸(FNA)以及溶解氧(DO)进行调控,实现了中试亚硝化反应器的成功启动.结果表明,通过前期高DO,后期低DO的运行模式,并对反应器运行过程中的FA、FNA进行调控实现了AOB的富集和NOB的淘汰,启动成功后反应器内部亚硝酸盐产生速率(NPR)达到1.27 kg·(m~3·d)~(-1),亚硝酸盐积累率(NAR)也稳定在98%.采用实时荧光定量PCR方法(quantitative real time PCR,q PCR)对启动初期和成功启动后反应器中的功能微生物(AOB、NOB)进行分析,q PCR结果表明反应功能微生物AOB的拷贝数从启动初期的5.3×10~9copies·m L~(-1)增长到1.6×10~(11)copies·m L~(-1),NOB的拷贝数反而从1.1×10~(10)copies·m L~(-1)下降到1.2×10~9copies·m L~(-1),AOB拷贝数的数量级比NOB的要高2个数量级,这也是在启动过程中通过DO、FA、FNA等措施对NOB联合抑制的作用.
[Abstract]:the suspended filler is added for hanging the membrane by inoculating the sludge after the pressure filtration of the sewage treatment plant, the simulated ammonia nitrogen sewage is treated by a continuous flow reactor, the free ammonia (FA), the free nitrous acid (FNA) and the dissolved oxygen (DO) of the reactor are regulated, And the successful starting of the pilot-scale nitrosation reactor is realized. The results showed that the concentration of the AOB and the phase-out of NOB were realized by the control and control of FA and FNA during the operation of the reactor, and the rate of nitrite production (NPR) in the reactor reached 1.27 kg 路 (m ~ 3 路 d) ~ (-1). The nitrite accumulation rate (NAR) was also stable at 98%. The functional microorganisms (AOB, NOB) in the reactor after the start-up and the successful start-up were analyzed by the real-time fluorescence quantitative PCR (q-PCR), The results of the q-PCR show that the number of copy number of the reaction-functional microorganism AOB is increased from 5.3 to 10 to 9 copies 路 m L-(-1) in the initial stage to 1.6 to 10-(11) copies 路 m L-(-1), and the copy number of the NOB is decreased from 1.1 to 10 to (10) copies 路 m L-(-1) to 1.2 to 10-9 copies 路 m L-(-1), and the order of magnitude of the AOB copy number is 2 orders of magnitude higher than that of the NOB, This is also the effect of the combination of DO, FA and FNA on the combination of NOB during the start-up.
【作者单位】： 苏州科技大学环境科学与工程学院;苏州科技大学环境生物技术研究所;
【基金】：国家自然科学基金项目(51478284,51408387) 国家重点研发计划项目(2016YFC0401103) 江苏省水处理技术与材料协同创新中心项目 江苏省特色优势学科二期项目 苏州市分离净化材料与技术重点实验室项目(SZS201512)
【分类号】：X703
本文编号：2523495
[Abstract]:the suspended filler is added for hanging the membrane by inoculating the sludge after the pressure filtration of the sewage treatment plant, the simulated ammonia nitrogen sewage is treated by a continuous flow reactor, the free ammonia (FA), the free nitrous acid (FNA) and the dissolved oxygen (DO) of the reactor are regulated, And the successful starting of the pilot-scale nitrosation reactor is realized. The results showed that the concentration of the AOB and the phase-out of NOB were realized by the control and control of FA and FNA during the operation of the reactor, and the rate of nitrite production (NPR) in the reactor reached 1.27 kg 路 (m ~ 3 路 d) ~ (-1). The nitrite accumulation rate (NAR) was also stable at 98%. The functional microorganisms (AOB, NOB) in the reactor after the start-up and the successful start-up were analyzed by the real-time fluorescence quantitative PCR (q-PCR), The results of the q-PCR show that the number of copy number of the reaction-functional microorganism AOB is increased from 5.3 to 10 to 9 copies 路 m L-(-1) in the initial stage to 1.6 to 10-(11) copies 路 m L-(-1), and the copy number of the NOB is decreased from 1.1 to 10 to (10) copies 路 m L-(-1) to 1.2 to 10-9 copies 路 m L-(-1), and the order of magnitude of the AOB copy number is 2 orders of magnitude higher than that of the NOB, This is also the effect of the combination of DO, FA and FNA on the combination of NOB during the start-up.
【作者单位】： 苏州科技大学环境科学与工程学院;苏州科技大学环境生物技术研究所;
【基金】：国家自然科学基金项目(51478284,51408387) 国家重点研发计划项目(2016YFC0401103) 江苏省水处理技术与材料协同创新中心项目 江苏省特色优势学科二期项目 苏州市分离净化材料与技术重点实验室项目(SZS201512)
【分类号】：X703
【相似文献】
相关期刊论文 前6条
1 江春珍,张凤鸣;浅析稀酚水中游离氨、单元酚超标原因及处理措施[J];煤炭技术;2002年02期
2 易永达;直接快速测定工业水中的余氯、铁、锰、亚硝酸盐及游离氨[J];工业水处理;1990年06期
3 吴永明;万金保;熊继海;王顺发;顾平;;游离氨在高含氮废水生物法处理中的作用及其研究进展[J];工业水处理;2010年09期
4 张亮;张树军;彭永臻;;污水处理中游离氨对硝化作用抑制影响研究[J];哈尔滨工业大学学报;2012年02期
5 王淑莹;刘旭;吴蕾;;温度和游离氨对颗粒与絮状污泥硝化性能影响的对比研究[J];北京工业大学学报;2013年02期
6 黄积源;用氨探测器测定水和废水中的氨[J];国外医学参考资料(卫生学分册);1975年05期
相关硕士学位论文 前1条
1 刘京;游离氨对硝化菌活性抑制及硝化菌群结构的影响研究[D];天津大学;2012年
，本文编号：2523495
本文链接：https://www.wllwen.com/shengtaihuanjingbaohulunwen/2523495.html
