Gravity type waterfront combined wetland system at river intersection

An intersection and gravity-type technology, applied in the field of gravity-type waterfront combined wetland systems, can solve problems such as inability to purify sewage and blockage of artificial wetlands, and achieve the effects of saving energy consumption, reducing downtime, and improving purification efficiency

CN110127951APending Publication Date: 2019-08-16TIANJIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-08-16

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Abstract

The invention discloses a gravity type waterfront combined wetland system at a river intersection. The system comprises a fan-shaped stepped wetland, which is positioned at the intersection of two rivers and is communicated with the two rivers; a rubber dam is arranged in the two rivers, the distance between the dam top of the rubber dam and the water surface is 200-400 mm, and the rubber dam is located at the step turning position of the wetland. The system is suitable for wetland treatment at river intersections. Due to the water fall effect brought by the rubber dam, dissolved oxygen in original river water is increased, the removal efficiency of organic pollutants is improved, lifting of a pump is not needed, operation of the wetland system is completed only by means of gravity, and energy conservation and environmental protection are achieved. Through the synergistic effect of the plants and the filler, the system can effectively remove nitrogen and phosphorus, heavy metals and the like in the water body. The system is small in occupied area and high in water treatment efficiency, and the river intersection has sense of beauty.
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Description

technical field

[0001] The invention relates to a wetland system, in particular to a gravity-type waterfront combined wetland system at the confluence of rivers. Background technique

[0002] At present, rivers, as an important carrier for transporting and storing water resources, provide a space for the survival and reproduction of many animals, plants and microorganisms. At the same time, rivers are also the media for the discharge of many pollutants. With the development of economy and the progress of society, the pollution of rivers in our country is becoming more and more serious. The indiscriminate discharge of a large amount of wastewater containing nitrogen, phosphorus and organic matter has caused water pollution in many rivers. According to the 2017 Bulletin on the State of the Environment in China, among the 1,940 surveyed water quality sections, 23.8% of the water was classified as Class IV or Class V, and 8.3% were inferior to Class V. Among the country's sev...

Examples

Embodiment Construction

[0030] In order to further understand the invention content, characteristics and effects of the present invention, the following embodiments are enumerated hereby, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0031] See Figure 1 to Figure 3 , a gravity-type waterfront combined wetland system at the confluence of rivers, including a fan-shaped stepped wetland, the wetland is located at the confluence of two rivers and communicates with the two rivers; a rubber dam 3 is set in the two rivers, and the rubber dam 3 The height of the dam crest from the water surface is 200-400mm, and the rubber dam 3 is located at the step turning point of the wetland. Compared with traditional artificial wetlands, the present invention adapts measures to local conditions and can be constructed according to the characteristic structure of local river channels. As a fan-shaped area, it can occupy less land while maintaining the residence time of the riv...