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Ecological system for improving self purification capacity of riverway and construction method of ecological system

A technology with self-purification ability and ecosystem, applied in chemical instruments and methods, construction, biological water/sewage treatment, etc., can solve problems such as poor removal of water pollutants, difficulty in bacterial agents, and weak resistance to external interference. Achieve significant improvement and pollutant removal effect, improve water self-purification ability, and improve self-purification ability.

Inactive Publication Date: 2018-02-23
ZHENGZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods can achieve a certain effect to a certain extent, they have relatively large limitations and disadvantages: ① Although physical and chemical methods are effective, they cannot fundamentally remove pollutants and improve the self-purification capacity of river water , the rebound effect is obvious, a lot of manpower and financial resources are wasted, and the practicability is poor; ②Chemical methods are easy to cause secondary pollution to the environment and are not suitable for use; ③The system constructed by biological methods has a simple structure and weak ability to resist external interference. When the interference is large enough, it can even directly destroy the system structure; ④The polluted water quality is complex, it is difficult to select the bacterial agent, and most of the compound bacterial agents have poor removal effect on water pollutants
So so far, there is still no single physical, chemical or biological method that can effectively remove water pollutants and improve the self-purification capacity of rivers

Method used

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  • Ecological system for improving self purification capacity of riverway and construction method of ecological system
  • Ecological system for improving self purification capacity of riverway and construction method of ecological system
  • Ecological system for improving self purification capacity of riverway and construction method of ecological system

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Take a river course in a place as an example. The river course is a natural river course, starting from a certain reservoir in the east and reaching a certain river in the west. The total length is about 3km, and the average width and depth are 8m and 1.2m respectively. Most of the banks are protected by natural soil slopes, which are seriously damaged by rain erosion, slight silt accumulation in the river course, and the bottom of the river bed is raised. Both sides of the river are farmland, and the surrounding area is dominated by residents. Only domestic sewage is discharged into the river in the vicinity, which is non-point source pollution, causing serious pollution in some rivers.

[0031] Such as Figure 1~Figure 5 As shown, an ecosystem for improving the self-purification ability of a river course includes a river course with a stone purification layer 6 on the surface of the river bottom, side slopes 2 arranged on both sides of the river course, and intervals arr...

Embodiment 2

[0040] Take a river course in a certain place as an example. The river course belongs to an urban river course, starting from a reservoir in the east and reaching a river in the west, with a total length of about 5km, and an average width and depth of 10m and 1.5m respectively. Except for part of the river sections with mortar-masonry bank protection, most of them are natural soil slope bank protection. The mortar-masonry bank protection severely hinders the exchange between the river water body and the groundwater body, and the natural soil slope bank protection part collapses. There was serious silt accumulation in the river course, and the bottom of the river bed was obviously raised. There are residents on the west side of the river, and fish ponds on the east. Domestic sewage and fish pond water are discharged into the river, causing serious pollution of the river water body and obvious eutrophication of the water body, accompanied by black odor.

[0041] Such as Figure 1~F...

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Abstract

The invention relates to the technical field of self purification of riverways, in particular to an ecological system for improving the self purification capacity of a riverway and a construction method of the ecological system. The system comprises the riverway, side slopes arranged on the two sides of the riverway and infiltration dams arranged on the riverway at intervals, wherein a stone purification layer is arranged on the surface layer of the river bottom of the riverway. A soil layer is further arranged on the stone purification layer. Water is arranged on the soil layer. An aquatic plant community layer is arranged on the surface layer of the water. Ecological bags are arranged on the side slopes. A vegetation layer is arranged on the surface of each ecological bag. The complete riverway ecological system is constructed in a staging manner through a chemical method, a biological method and an ecological method according to different water quality conditions; the water qualityis purified, and meanwhile the self purification capacity of the water is improved; the original ecological system of the water is restored; no secondary pollution is generated; and it is guaranteed that the repaired riverway ecological system operates stably for a long time.

Description

Technical field [0001] The present invention relates to the technical field of self-purification of river channels, in particular to an ecological system for improving the self-purification ability of river channels and a construction method thereof. Background technique [0002] The rapid economic development, rapid population growth, acceleration of urbanization, and the intensive development of agriculture and industry have resulted in an increasing demand for water. At the same time, more and more sewage and wastewater flow into natural water bodies, which in turn causes water bodies. Pollution is becoming more serious, and the self-purification ability of water bodies is gradually decreasing. At the same time, the resilience and resistance of river ecosystems are also worrying, which seriously affects the structure and function of river ecosystems. With the strengthening of human activities, the morphological structure of the river channel has also undergone earth-shaking ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/00E02B3/10E02B3/12C02F3/32
CPCE02B3/00C02F3/32C02F2103/007E02B3/10E02B3/12E02B3/123
Inventor 高镜清班亚飞王文垅张敬申高健磊陈洁
Owner ZHENGZHOU UNIV
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