To reveal the nitrogen purification mechanism in subsurface-flow constructed wetlands,nitrification and denitrification intensities were studied in reed,canna and unplanted wetlands respectively.
对芦苇、美人蕉、空白潜流型人工湿地中硝化、反硝化作用强度进行了对比研究。
It shows that vertical-flow of the efficiency of removing COD_(Cr),NH_3-N is better;but subsurface-flow removing NO~-_3-N is better.
通过小型垂直流与潜流人工湿地实验,监测了水力停留时间为50小时下的CODCr、TP、NO3--N、NH3-N等指标,旨在通过实验,比较垂直流芦苇人工湿地与潜流芦苇人工湿地对化粪池出水的净化效果。
Removal of nitrogen and phosphorus by integrated subsurface flow-upward vertical flow constructed wetland process;
潜流-上行垂直流复合人工湿地对氮磷去除效果
In which the removal efficiency of COD was the best in subsurface flow(horizontal flow)and vertical flow(upward flow)constructed wetland system,while removal efficiency of TP,NH3-N and SS were the best in the vertical flow(downward flow)and vertical flow(upward flow)constructed wetland system.
为期7个月的运行结果表明,系统出水水质均达到城镇污水处理厂污染物排放标准(GB18918-2002)中的二级标准,其中潜流(水平流)+垂直流(上行流)湿地系统对COD的去除效果最好;垂直流(下行流)+垂直流(上行流)湿地系统对TP、NH3-N、SS去除效果最好;选用含钙石灰石和含铁矿粉做填料、采用间歇式的运行方式可以提高湿地系统对污染物的去除率。
A current, as of air or water, below another current or beneath a surface.
潜流处天于另一流层下的急流或水流
Simulation of undercurrents in Western Tropical Pacific: (Ⅱ) Velocity structure, transport and the seasonal variations
热带西太平洋潜流模拟:(Ⅱ)潜流结构与输运及其季节变化
of the philosophical undercurrents in the scientific revolution,
那是科学革命中哲学潜流的新意识，
On the Three Rebirth Undercurrent of Prose Poem during Cross-century;
试论世纪之交散文诗的三股新生潜流
Study On the Outflow of Graduates Majored in Tourism Management
高校旅游管理毕业生潜流失问题初探
Simulation Study on Phosphorus Removal Performance of Constructed Wetland Substrates
潜流人工湿地填料除磷性能模拟研究
Variations of equatorial undercurrent and its relationship with ENSO cycle
赤道潜流变化及其与ENSO的关系
SOLUTION FOR SSFW MATHEMATICAL MODEL ADDEND SOURCE
潜流湿地数学模型添加源项后的计算
When the downstream head is greater than about 3/5 of the upstream head, flow is submerged.
当下游压头大于上游压头约3／5时，流量是潜流。
The bridge and conning tower on a submarine.
潜艇的流线型指挥台外壳
the potential energy that resides in flowing water.
存在于流水中的潜在能量
There was an undercurrent of antipathy between them.
他们两人之间潜伏着一股反感的暗流。
Numerical Simulation and Validation of Wake Field of Submarine with Stern Appendage
带附体潜艇尾流场的数值模拟与验证
Numeric Calculation of the Eddy Current Loss in Magnetic Isolated Segment of Submersible Motor;
潜油电机隔磁段涡流损耗的数值计算
Study on the Potential of Water Resources Exploitation and Utilization in the Inland River Basin;
内陆河流域水资源开发利用潜力研究
Researching an Implicit Rule of US Mainstream Media Coverage;
探析美国主流媒体涉华报道的潜规则
Discussion on Status in Quo and Potential of Women s Communication and Cooperation between Fujian and Taiwan;
闽台妇女交流合作的现状与潜力探析
Research on secondary arc current under different line model
不同线路模型下潜供电流的特性分析