Chongqing University

Shenzhen Yuezhong (group) Co., Ltd.

Promotion Centre of Science and Technology Development, Ministry of Housing and Urban-rural Development of the People's Republic of China

Qiang Jiang

Hongxiang Chai

Feng Zhang

Shen Li

Hua Zhao

Wei Kang

Weijie Wang

Songming Tan

Yanrong Bao

Boyu Zou

Luwei Guo

Yuming Zhou

Lei Kong

A system for treating and recycling rainwater, including at least three stages constructed wetlands disposed along a sloped surface. Each stage constructed wetland includes a coarse gravel layer, a fine gravel layer, an improved soil layer, and wetland plants from bottom to top. Slopes are disposed at two sides of the upper part of each constructed wetland and are different in heights. An intermediate overflow pipe is disposed at the top of the slope between every two adjacent constructed wetlands. A last overflow pipe communicates with a municipal rainwater pipe. The coarse gravel layers of every two adjacent constructed wetlands are connected by connecting pipes. A perforated water collecting pipe is disposed at front ends of the connecting pipes. A water outlet pipe is disposed in the bottom of the coarse gravel layer of a last stage constructed wetland and is connected to a clean water reservoir.

System for treating and recycling rainwater

A system for purifying rainfall runoff including a bar screen; a collection and diversion device; a filter channel; a grass ditch; and a water storage tank. The bar screen is disposed around the collection and diversion device for preliminarily filtering the road rainfall runoff. The collection and diversion device collects the road rainfall runoff and diverts early rainfall runoff to the filter channel, after the filter channel is full, later rainfall runoff is directly diverted to the grass ditch through open channels. The grass ditch includes a percolation bed capable of filtering the early and later rainfall runoff. The water storage tank is connected to the grass ditch via a guiding pipe, to receive the rainfall runoff effusing out of the grass ditch. Part of the rainfall runoff received by the water storage is transported to the percolation bed by a return conduit.

System and method for purifying rainfall runoff

Growing community of inventors

Chongqing, China

Qiang Jiang