The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 12, 2017

Filed:

Dec. 09, 2014
Applicants:

Chongqing University, Chongqing, CN;

Shenzhen Yuezhong (Group) Co., Ltd., Shenzhen, CN;

Inventors:

Hongxiang Chai, Chongqing, CN;

Songming Tan, Chongqing, CN;

Yuming Zhou, Chongqing, CN;

Qiang Jiang, Chongqing, CN;

Shen Li, Chongqing, CN;

Luwei Guo, Chongqing, CN;

Wei Kang, Chongqing, CN;

Lei Kong, Chongqing, CN;

Assignees:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 33/70 (2006.01); C02F 1/00 (2006.01); C02F 3/32 (2006.01); E03B 3/02 (2006.01); C02F 103/00 (2006.01);
U.S. Cl.
CPC ...
C02F 3/327 (2013.01); E03B 3/02 (2013.01); C02F 2103/001 (2013.01); C02F 2203/006 (2013.01); Y02W 10/18 (2015.05);
Abstract

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.


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