Zhejiang University

Xinqiang Liang

Hua Li

Feng Liu

Yi Jin

Zhirong Wang

Fayong Li

Guifen Hua

Kejin Zhou

Meiru Li

Shuang He

Junwei Jin

Yulei Yu

Liping Lou

Ziyi Zhao

Qi Lin

Guangming Tian

A rural landscape-type nitrogen and phosphorus ecological interception ditch system and a farmland drainage nitrogen and phosphorus interception method using the system are provided. The system includes a sediment buffer zone, an ecological ditch unit, an interception-conversion pool and a field ridge hedge fence; the sediment buffer zone, the ecological ditch unit, and the interception-conversion pool are sequentially arranged in a continuous ditch along a direction of a water flow; and the field ridge hedge fence is arranged on field ridges on one side or both sides of the ditch. The present disclosure can, on the basis of not affecting normal production functions of a farmland, further exert an ecological role of the farmland, and use the farmland as an assimilation sink for environmental nitrogen and phosphorus, so as to optimize drainage water quality and improve a farmland ecological environment.

Rural landscape-type nitrogen and phosphorus ecological interception ditch system and farmland drainage nitrogen and phosphorus interception method using the same

An integrated eliminating device and its method for initial runoff pollution is provided, wherein a plurality of the water receiving pipes for collecting initial runoff are gathered and connected to the first water reservoir, one end of the water inlet pump is connected with the first water reservoir via the water receiving pipes, and the other end of the intake pump is connected with an water inlet opening of the rice field; the rice field is divided into a plurality of sub-parcels in a shape of long stripes, a regulating gate is set. An outlet of the rice field is communicated with the second water reservoir and which is communicated with the water inlet opening of the rice field via the reflux pump.

Integrated device and method for eliminating initial runoff pollution

Growing community of inventors

Hangzhou, China

Xinqiang Liang