Wet pond system for sponge city and rainwater purification method thereof

A sponge city and rainwater technology, applied in chemical instruments and methods, waterway systems, drinking water installations, etc., can solve problems such as excessive water flow velocity, soil erosion, dryness and death, delay the time of storm peaks, and save time and effort for maintenance , The effect of simple and fast construction

Inactive Publication Date: 2021-04-30
JIANGSU LONG LEAPING ENG DESIGN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wet ponds are generally composed of water inlets, pre-ponds, outlet ponds, overflow outlets, etc., but the oxygen content of inflow rainwater is low, which leads to a great reduction in the treatment effect of follow-up facilities; the water flow rate is too high, which severely scours the wet pond slope, resulting in Water and soil loss; the purification function of the front pond is single, and often only rely on aquatic plants to purify and absorb pollutants; the wet pond does not replenish water sources in dry seasons, especially the aquatic plants in the front pond without the water supply from the outlet pond, often dry up and die

Method used

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  • Wet pond system for sponge city and rainwater purification method thereof

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Comparison scheme
Effect test

Embodiment 1

[0036]Combinefigure 1As shown, a wet pond system for sponge cities, including water flow can be sequentially passed through the water distribution system 1, a pre-purification system 2, a main pond system 3, a drainage system 4. The water distribution system 1 includes an inlet aeration in the water supply port 11, a decline aeration in a decrease in aeration, a decline aeration agencies 12 including a drop step 121, and the upper upper portion of the lower end of the drop step 121 is sequentially set. 122 and slow roller 123.

[0037]Pre-purification system 2 includes a gravel 21, an aluminum sludge fillet 22, an soil cofferrofer 23; a space between the lower end of the crusher 21 and the padding system 1, and the first front pond 25, The space between the crusher 21 and the aluminum sludge fillet 22 constitutes the second front pond 26, and the space between the aluminum sludge fillet 22 and the soil cofferdam 23 constitutes the third front pond 27.

[0038]The main Tang system 3 includ...

Embodiment 2

[0045]To prevent aquatic plants from die during the dryness, ensure that the plant can survive, on the basis of Example 1, the wet pond system increases the storage structure 13, and the storage structure 13 is located below the drop step 121, and the declined step 121 is built by the water water. Based, it is preferred to use water-water concrete construction; the storage structure 13 is a structure that can be stored by the inlet outer wall 133; the outer wall 133 is provided with a shuttle valve with a shut-off valve, the emergency water port 132 Direction towards the front purification system.

[0046]Preferably, the support wall 131 is provided in the storage structure 13, and the support wall 131 is used to support the declined step 121, which makes the declined step 121 more secure; the support wall 131 and the outer wall 133 are brick structure, and the outer wall 133 is constructed. Waterproof measures must be made to ensure that rainwater does not penetrate and cannot penetra...

Embodiment 3

[0049]In order to reduce the rain, the rain is lowered, the water flow rate and potential energy can be reduced. On the basis of Example 1, at least 2 of the dummy pier 122, and the diversified pier 122 is located on the same horizontal plane. The arrangement is sequentially arranged along the Z-axis direction, and there is a space between the adjacent diverside piers 122, wherein the Z-axis direction is the height direction of the horizontal plane; it is preferred, the diversion pier 122 is the shape of the right-angle triangular prism The vertical angle of 122 towards the water flow direction; in order to further reduce the rain water flow rate, the reduction of the rifling 123 is a triangular prism structure across the entire water flow surface, preferably, the arrest of the stroke 123 facing the plane and the horizontal plane of the water flow direction It is 10-30 degrees, between this angle, facilitating the rapid flow of rainfall into the pre-purification system 2 and minimiz...

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PUM

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Abstract

The invention provides a wet pond system for a sponge city and a rainwater purification method thereof. The wet pond system comprises a water distribution system, a front purification system, a main pond system and a drainage system, wherein water flow can sequentially pass through the water distribution system, the front purification system, the main pond system and the drainage system; the water distribution system comprises a water inlet and a drop aeration slow flow structure located below the water inlet, the drop aeration slow flow structure comprises a drop step, and the upper portion of the tail end of the drop step is sequentially provided with a baffle pier and a slow flow sill; and the main pond system comprises a main pond, a water distribution gabion and a first emergent aquatic plant bed, the water distribution gabion is arranged in a soil cofferdam, and the first emergent aquatic plant bed is arranged on the soil cofferdam close to one side of the main pond and located below the water distribution gabion. The wet pond system is easy and fast to construct, time and labor are saved during maintenance, rainwater is effectively purified, rainstorm flood peak time can be delayed, upstream rainwater is regulated and stored, meanwhile, beautiful landscape is created, residents are attracted to play, and the wet pond system can be used for municipal roads, parks and residential areas.

Description

Technical field[0001]The present invention relates to the field of sponge urban construction, and in particular to a wet pond system for sponge cities and a method of purifying rainwater.Background technique[0002]In the 21st century, as the economy continued to develop rapidly, my country's urbanization has also made great progress. However, the urban natural surface is replaced by the impervious rigid material of the living area, which has changed the landform structure of the surface. It has caused bad influence on the natural ecological environment. The urban flood disasters, the deterioration of ecological environment is increasingly high. Based on this, the construction of sponge city is an important measure to solve the current drought and flood and flood and flood in the city, the dilemma of facial source pollution, the deterioration of ecological environment, and the construction of eco-rain management system. Wettam is one of the important technical means of sponge city, lo...

Claims

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Application Information

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IPC IPC(8): E03F1/00E03F5/00E03B3/02E02D19/04E03F5/04E03F5/06E03F5/10C02F3/32
CPCE03F1/00E03F5/00E03B3/02E02D19/04E03F5/04E03F5/06E03F5/10C02F3/32Y02A20/108
Inventor 何文江刘清泉李澄潘龙张瑞斌王乐阳江明婧李娟
Owner JIANGSU LONG LEAPING ENG DESIGN
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