subsurface flow

Hydrologists are often interested in the solution of subsurface-flow problems.

水文工作者很关心地下水流问题的求解.

Vertical subsurface flow constructed wetland has negative effect on reaeration, which caused a low removal rate of NH3-N; the average removal rate was less than 10%.

垂直潜流人工湿地不利于大气复氧，并因而造成NH3-N去除率较低，平均去除率小于10%。

Subsurface flow constructed wetlands ( SFS ) can effectively remove system, but less effectively for denitrification.

潜流式人工湿地能够有效地去除舍碳有机污染物, 但一般对含氮污染物的去除效果相对较弱.

It is the purpose of this book to describe the elements of subsurface-flow theory.

本书的目的是描述地下水流理论的要点.

Comparison Between the Free Water and Subsurface Flow Type Constructed Wetlands for Rural Sewage Treatment

表面流与潜流式生态床处理农村污水

By adding municipal wastewater in effluent of ANOXIC-OXIC ( A/ O) reactor as external carbon source, effects of external carbon source on nitrogen and phosphorus removal in subsurface flow and free water surface integrated constructed wetland were studied in pilot-scale.

采用向ANOXIC-OXIC（A/O）工艺出水中添加城市污水的方法，在中试规模上研究了外加碳源对潜流+表面流组合湿地脱氮除磷的影响。

Aiming at the comprehensive assessment of ground water environment in the Taihang Mountain area, continuous observation of the variation of subsurface flow formed by crevice water is carried out.

为了科学地对太行山区地下水环境进行综合评价，本试验采用了翻斗式自计量水技术，对该区普遍存在的裂隙潜流的动态变化过程进行新监测。

However, the direct relationship between geologic parameters and subsurface flow is obscure.

但是地质参数与潜流之间的直接关系并不明显.

This is the important link for problems of subsurface flow.

这是解决地下水问题的重要一环.