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Method for shaping ecological decontaminating type combination stream channel wet land system

A molding method and a pollution-purifying technology, which are applied in the field of ecological pollution-purifying compound riverbed wetland system molding, can solve the problem of flooding, shipping impacts, changing flow and connectivity characteristics, and the inoculation technology and aquatic plant technology are not easy to control and manage, etc. problem, to achieve the effect of purifying river water and strengthening self-purification ability

Inactive Publication Date: 2008-07-16
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current bio-ecological purification technology also has certain defects. For example, the technology of bacterium injection and aquatic plant technology is not easy to control and manage, and improper use will have an impact on indigenous species and the structure of the original ecosystem; Improper arrangement of artificial floating beds and artificial floating islands in the river will have a certain impact on its functions such as flood discharge and shipping; pond technology uses barrages to artificially divide the river into several still water bodies, changing its flow and connectivity characteristics. Seriously affected the ecosystem structure and function of the river

Method used

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  • Method for shaping ecological decontaminating type combination stream channel wet land system
  • Method for shaping ecological decontaminating type combination stream channel wet land system
  • Method for shaping ecological decontaminating type combination stream channel wet land system

Examples

Experimental program
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Effect test

Embodiment 1

[0014] Embodiment 1, with reference to accompanying drawing 1, accompanying drawing 4, in river width greater than or equal to 50m river:

[0015] Excavate and transform the original riverbed 1, lay water distributors 13 on the bottom of the new riverbed 2 near the river bank, and fill in layers of 30-60mm round gravel 3, 12mm medium gravel 4, 6mm gravel 5, coarse sand 6 and Soil 7 and other substrates form a compound riverbed. The top of the compound riverbed shoal is located below the dry water level 11 of the river. Emergent plants 9 and submerged plants 10 are planted on the soil layer of the compound riverbed shoal. Protecting and building to form an ecological pollution-type compound river bed wetland system 15. In the longitudinal direction of the river, the ecological purification type compound riverbed wetland system 15 is continuously arranged inside the banklines 14 on both sides. The width of the system is different and the edges are streamlined.

Embodiment 2

[0017] Comparing with attached drawings 2 and 5, in rivers with a river width greater than 10m and less than 50m:

[0018] Excavate and reform the original riverbed 1, lay water distributor 13 on one side near the river bank at the bottom of the new riverbed 2, and fill 30-60mm round gravel 3, 12mm medium gravel 4, 6mm gravel 5, coarse sand 6 and Soil 7 and other substrates form a compound riverbed. The top of the compound riverbed shoal is located below the dry water level 11 of the river. Emergent plants 9 and submerged plants 10 are planted on the soil layer of the compound riverbed shoal. Protecting and building to form an ecological pollution-type compound river bed wetland system 15. In the longitudinal direction of the river, the inner sides of the banklines 14 on both sides are staggered and arranged at intervals, and the ecological purification type compound river bed wetland system 15 is arranged, and each system is in the shape of a circular arc.

Embodiment 3

[0020] Comparing with attached drawings 3 and 6, in rivers with river width less than or equal to 10m:

[0021] Excavate one side of the original river bank slope to transform the original riverbed 1, lay water distributor 13 at the bottom of the new riverbed 2 formed, and fill 30-60mm round gravel 3, 12mm medium gravel 4, 6mm gravel 5, layer by layer from bottom to top Substrates such as coarse sand 6 and soil 7 form a compound riverbed. The top of the compound riverbed shoal is below the dry water level 11 of the river. Emergent plants 9 and submerged plants 10 are planted on the soil layer of the compound riverbed shoal. Ecological concrete slabs 8 are built to form a complex river bed wetland system 15 of ecological pollution type. In the longitudinal direction of the river, riverbed wetland systems 15 are laid out in staggered intervals outside the banklines 14 on both sides, and each system is arc-shaped. Set riprap weirs 16 and deep pools 17 in the upstream of each riv...

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Abstract

The invention relates to a method for forming an ecologically-sewage-purifying compound riverbed wetland system, which is characterized in that: a 30-60mm round gravel, a 12mm medium gravel, a 6mm gravels as well as coarse sands and soil matrixes are filled in the new riverbed from the lower part to the upper part to form a compound riverbed and the top of a shoal of the compound riverbed is positioned below the low water level of the river; the aquatic plants are planted on a soil layer of the shoal of the compound riverbed; the deep grooves and the slopes are protected and built by ecological concrete; thus, the ecological ecologically-sewage-purifying compound riverbed wetland system is formed. The invention has the advantages that a comprehensive treatment system with the plant-the matrix-microorganism is formed, thus enhancing self-purification capability of the river, purifying water body of the river and improving water environmental quality of the river; section form of the riverbed is transformed into a compound riverbed structure in which the shoal and the deep grooves exist simultaneously and the riverbed wetland system is arranged in sinuous way in longitudinal river, which facilitates perch and growth of the aquatic creature and diversification of the river creature; a water distributor is laid to carry out the depth treatment for tail water reaching the standard; the invention has the advantages of simple structure and construction, convenient operation, stable function and low manufacture cost.

Description

technical field [0001] The invention relates to a technical method for in-situ water quality purification and ecological restoration of river water bodies, in particular to a method for forming an ecological pollution-type compound river bed wetland system that utilizes the principle of artificial wetlands to purify river water quality in situ and create a diverse environment suitable for aquatic organisms to inhabit. The invention belongs to the technical field of river water quality purification and ecological restoration. Background technique [0002] At present, the purification treatment technology of river polluted water can be mainly divided into ex-situ treatment technology and in-situ treatment technology. The ectopic treatment technology of polluted water means that the polluted water in the river is directed to external purification facilities for treatment. The purification effect of this method is obvious, but the treatment capacity is very limited. It is only s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 王超王沛芳侯俊张松贺
Owner HOHAI UNIV
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