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Artificial island for riverway water quality purification and ecological restoration

A technology for ecological restoration and water purification, applied to water pollutants, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problems of less attention and high cost in restoring urban river ecosystems, and improve fish quality. Effects of population size, low price, high porosity and permeability

Pending Publication Date: 2022-01-21
KESHENG ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Every year, our country puts a lot of effort into the water quality purification of urban rivers, such as adopting engineering control measures such as river dredging and setting up water purification pumping stations along the river, and has achieved staged achievements. However, these engineering river control measures often cost a lot
Moreover, my country's current governance of urban rivers is still mainly focused on improving the water quality of urban rivers, while paying less attention to the restoration of urban river ecosystems

Method used

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  • Artificial island for riverway water quality purification and ecological restoration
  • Artificial island for riverway water quality purification and ecological restoration
  • Artificial island for riverway water quality purification and ecological restoration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Specifically: the project case will be implemented in April 2020 and completed in April 2021. The address is a river section in Nanjing. The hydrogeological data of this river section (Table 1) are obtained by collecting the hydrogeological data of the river section and field investigation.

[0032] Table 1 Hydrogeological data of the section of Jiuxiang River in Nanjing located at Xianlin Avenue and Zhigu Avenue

[0033]

[0034]

[0035] According to my country's "Surface Water Environmental Quality Standard" (GB3838-2002), the water quality of this river section belongs to Class V water.

[0036] During specific implementation, a total of 12 artificial islands 2 were built in this river section, and the average distance between adjacent artificial islands 2 was 450m. Select one of the artificial island body 2 below, and combine Figure 1-2 , the present invention is further elaborated as follows:

[0037] The constructed artificial islands 2 are distributed ...

Embodiment 2

[0042] This embodiment has chosen another artificial island among the 12 artificial islands of the project in embodiment 1, with reference to Figure 1-2 , as another preferred embodiment of the present invention, the difference from Embodiment 1 is that the distances between the shore points on both sides of the artificial island body 2 and the river bank are 4.1 m and 4.6 m respectively. The plane shape of the artificial island body 2 is nearly elliptical along the flow direction of the river channel 1. The ratio of the longest distance 14.0m along the direction of the river channel 1 to the widest distance 6.7m perpendicular to the direction of the river channel 1 is about 2.1:1. The ratio of the widest distance 6.7m of the island body 2 perpendicular to the direction of the channel 1 to the section width of the channel 1 of 15.4m is 1:2.3. The edge of the near-natural structural area 3 is 0.15-0.3m lower than the annual average water level of the river, and the top is 1.3m...

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Abstract

The invention discloses an artificial island for riverway water quality purification and ecological restoration, and relates to the technical field of ecological management, and the artificial island is composed of a suspended filler area located in the center of an artificial island body and a near-natural structure area surrounding the suspended filler area. The suspended filler area can adsorb and remove heavy metals such as Cr, Pb and Cd in urban river water, and pollutants such as COD, N and P in the water can be effectively reduced. A good river hygrophilous and terrestrial ecological environment is built in the area close to the natural structure, and an environment space meeting habitat and reproduction of organisms such as amphibians, reptiles, insects and birds and growth of shrubs and small arbors is built. The natural stone layer serving as a hard framework of the artificial island is provided with a large number of holes, a place for avoiding natural enemies is provided for small fishes, small mollusks and juvenile fishes, and the number of urban river organism populations can be increased.

Description

technical field [0001] The invention belongs to the technical field of ecological management, and in particular relates to an artificial island used for river water purification and ecological restoration. Background technique [0002] Rivers are the birthplace of human civilization. Since ancient times, human production and construction as well as the origin and development of civilization have been inextricably linked with rivers. Today, the rivers flowing through the city still play a huge role in the construction, development and prosperity of the city. The rivers flowing through the city provide a stable and sufficient water source for urban residents' life and industrial production, and at the same time serve as the final receiving place for urban sewage discharge. Urban rivers have made great contributions to the city's flood control and drainage. At the same time, the infiltration of river water into the soil has also effectively replenished urban groundwater, great...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F101/20C02F101/22
CPCC02F3/32C02F2103/007C02F2101/20C02F2101/22
Inventor 孙信柏刘爱宝董畔夏万成王凯朱辉
Owner KESHENG ENVIRONMENTAL PROTECTION TECH CO LTD
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