搜索结果: 1-15 共查到“Anammox”相关记录15条 . 查询时间(0.046 秒)
采用低温等离子体技术对普通聚氨酯泡沫塑料填料进行表面改性处理，研究了改性前后填料的表面特征、厌氧氨氧化生物膜量、脱氮性能、微生物群落结构及其功能微生物基因丰度的变化。结果表明：低温等离子体改性以后填料表面与蒸馏水的静态接触角减少33.27°，单点比表面积和吸附平均孔径分别由8.98 m2·g−1和3.01 nm提高至9.66 m2·g−1和4.98 nm，材料表面粗糙度增加...
通过接种成熟的亚硝化膜和厌氧氨氧化污泥，研究了中常温变化对PN-ANAMMOX联合工艺脱氮速率的影响及微生物群落的变化.结果表明，常温下能够实现PN-ANAMMOX联合脱氮，并且脱氮速率达到0.5 kg·（m3·d）-1.但是PN过程亚硝化速率下降，ANAMMOX菌活性未得到充分发挥，导致PN-ANAMMOX联合工艺脱氮速率远低于中温条件下的1.75 kg·（m3·d）-1，出水水质较差.温度的上...
采用全混式厌氧搅拌罐，研究在自养条件下，ANAMMMOX菌利用零价铁还原硝酸盐为氮气的可行性及最佳反应条件.投加铁屑71 g·L-1，接种厌氧氨氧化颗粒污泥200 mg·L-1，控制温度33℃±0.5℃，搅拌强度150 r·min-1，水力停留时间10 h，pH值为7.0~8.0.在中性条件下，添加厌氧氨氧化微生物的零价铁还原硝酸盐体系一次性投加零价铁，0~5 d硝酸盐脱氮负荷达到0.12 kg·...
ABR工艺ANAMMOX耦合短程硝化协同脱氮处理城市污水
短程硝化 城市污水 厌氧氨氧化 连续流反应器
2016/12/6
厌氧氨氧化技术如能替代市政污水厂的主流工艺，将大幅降低市政污水处理能耗. 故采用ABR反应器，构建除碳系统、短程硝化系统和厌氧氨氧化系统，将三者耦合成一体化短程硝化-厌氧氨氧化反应器进行城市污水脱氮. 结果表明，ABR除碳系统的HRT为4.5 h时，其出水COD平均浓度为80 mg·L-1，不会对后续短程硝化系统产生不利影响，出水TN平均浓度为10mg·L-1，厌氧氨氧化系统TN容积负荷为0.36...
Anaerobic ammonium oxidation (anammox) bacteria and sulfide-dependent denitrifiers coexist in the water column of a meromictic south-alpine lake
Anaerobic ammonium oxidation bacteria sulfide-dependent denitrifiers coexist in the water column a meromictic south-alpine lake
2014/4/2
In addition to organotrophic denitrification, alternative pathways, such as anaerobic ammonium oxidation(anammox) or sulfide-dependent denitrification may be important modes for the removal of fixed n...
Anammox and denitrification in the oxygen minimum zone of the eastern South Pacific
Anammox and denitrification oxygen minimum zone eastern South Pacific
2014/4/4
We quantified the removal of fixed nitrogen as N2 production by anammox and N2 and N2O production by denitrification over a distance of 1900 km along the coasts of Chile and Peru, using short-term inc...
Anammox and denitrification in the oxygen minimum zone of the eastern South Pacific
Anammox denitrification the oxygen minimum zone the eastern South Pacific
2014/4/3
We quantified the removal of fixed nitrogen as N2production by anammox and N2and N2O production by denitrification over a distance of 1900 km along the coasts of Chile and Peru, using short-term incub...
厌氧氨氧化(ANAMMOX)生物滤池反应器的启动特性
厌氧氨氧化 生物滤池 接种污泥 启动特性
2013/1/7
采用平行对比实验,讨论不同实验条件下上向流厌氧氨氧化(ANAMMOX)滤池反应器的启动特性。对比条件为温度、接种污泥、联氨和羟胺。结果表明:温度是影响厌氧氨氧化细菌活性的主要因素;接种200 mL具有活性的厌氧氨氧化污泥后,在避光、加热38℃、不控制联氨和羟氨的条件下,45 d可成功启动厌氧氨氧化滤池反应器;反应过程NH4+-N∶NO2--N∶NO3--N的化学计量摩尔比为1∶1.17∶0.30,...
Production of nitrogen gas via anammox and denitrification in intact sediment cores along a continental shelf to slope transect in the North Atlantic
Production of nitrogen gas anammox denitrification intact sediment cores a continental shelf slope transect the North Atlantic
2014/4/17
We measured the production of N2 gas from anammox and denitrification simultaneously in intact sediment cores at six sites along a transect of the continental shelf (50 m) and deeper slope (2000 m) in...
Molecular evidence for anaerobic ammonium–oxidizing (anammox) bacteria in continental shelf and slope sediments off northwest Africa
Molecular evidence anaerobic ammonium–oxidizing bacteria in continental shelf slope sediments off northwest Africa
2014/4/16
The presence and abundance of anaerobic ammonium–oxidizing (anammox) bacteria was investigated in continental shelf and slope sediments (300–3000 m water depth) off northwest Africa in a combined appr...
ANAMMOX与反硝化协同脱氮反应器启动及有机负荷对其运行性能的影响
协同脱氮 有机负荷 运行性能
2009/11/25
控制已稳定运行的UASB-ANAMMOX反应器进水TN容积负荷为026 kg.m-3.d-1，通过连续添加有机物(葡萄糖)，在进水有机负荷与TN负荷比值为1的情况下，仅用35 d就成功启动了ANAMMOX与反硝化协同脱氮反应器，稳定阶段反应器对氨氮、亚硝氮、TN和COD的去除率分别高达95.3%、99.1%、94.0%和93.2%，三氮比即去除的氨氮∶去除的亚硝氮∶生成的硝氮为1∶1.34∶0.0...
Anammox反应器的启动及其菌群演变的研究
硝化 厌氧氨氧化 细菌多样性 DGGE
2007/12/14
为了研究工艺条件对反应器内微生物多样性的影响，该论文采用城市污水处理厂活性污泥接种，通过培育硝化污泥，进行了启动厌氧氨氧化(Anammox)反应器的试验，并对启动过程中细菌的多样性变化作了跟踪研究。研究结果表明，以好氧活性污泥作为接种物，可成功地培育硝化生物膜；通过反应器运行条件的控制，硝化生物膜可从进行好氧氨氧化反应过渡到进行厌氧氨氧化反应。在此过程中，异养型细菌的数量大幅度下降，硝化细菌、反硝...
Shift from denitrification to anammox after inflow events in the central Baltic Sea
denitrification anammox after inflow events central Baltic Sea
2014/4/22
Incubation experiments with 15N-labeled compounds (NO3- and NH4+) were performed during three cruises (2002, 2004, and 2005) to study the loss of inorganic N as dinitrogen gas (N2) via denitrification...
The presence of ladderane lipids in the oxygen minimum zone of the Arabian Sea indicates nitrogen loss through anammox
The presence of ladderane lipids oxygen minimum zone Arabian Sea indicates nitrogen loss through anammox
2014/4/23
Distributions of ladderane lipids, which are characteristic of membranes of bacteria performing anaerobic ammonium oxidation (anammox), were determined in the northwestern Arabian Sea with respect to ...
Denitrification and anammox activity in Arctic marine sediments
Denitrifi cation anammox activity
2014/5/19
We measured rates of N2
production through anaerobic NH oxidation with NO (anammox) and denitrification 1 2
4 2
in permanently cold (from 21.78C to 48C) sediments off the east and west coasts...