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Wall-mounted plant packed bed

A packing bed and wall-mounted technology, which is applied in the field of environmental engineering, can solve the problems of difficult land occupation and utilization of urban rivers, and achieve the effects of simple and convenient installation, efficient removal, and low operating costs

Pending Publication Date: 2019-12-24
YUNNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, artificial wetlands and biological ponds are effective river sewage treatment technologies, but it is difficult to use them in urban rivers due to the problem of land occupation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] as attached Figure 1-4 A wall-mounted plant packing bed is shown, which is composed of plants, packing layers, water distribution boards and water inlet pipes. The packing bed is made of common UPVC pipes. The lower part is placed at the bottom of the packing bed; the packing layer is set on the packing bed, and the packing layer is laid with ceramsite and volcanic rock in sequence from bottom to top; the water distribution pipe is buried in the packing layer along the base and kept parallel to the embankment; the plant setting On the filler layer, the plants are aquatic plants; the height of the baffle is 1.1m; the thickness of the filler layer is 0.8m; there are several drainage holes on the top of the filler bed, and the height of the centerline of the drainage holes from the upper edge of the base is 0.98m , the distance between two adjacent drainage holes is 0.1m; there are water outlet holes on both sides of the water inlet pipe wall, and the distance between two...

Embodiment 2

[0042] The height of the baffle is 1.3m; the thickness of the packing layer is 1m; there are several drainage holes on the baffle, and the height of the center line of the drainage holes from the upper edge of the base is 1.02m.

[0043] Wherein, the diameter of the outlet hole is 5 cm.

[0044] Among them, the minimum distance between the baffle and the embankment is 10cm.

[0045] Among them, the aquatic plants are cattail grass, and the water load is 1-5gCOD / m 2 .d, the planting density of cattail grass is 4-6 plants / m 2 , The hydraulic retention time of the device is 1-2h, and the mud discharge cycle is 7-15 days. All the other are with embodiment 1.

[0046] The technical solution of this embodiment was applied to the water treatment of the Baoxiang River in Kunming City, and various indicators of the inflow and outflow water were analyzed and compared. The comparison results are shown in Table 1.

[0047] Table 1. Comparative results of Baoxiang River water treatment...

Embodiment 3

[0051] The height of the baffle is 1.2m; the thickness of the filler layer is 0.9m; there are several drainage holes on the baffle, and the height of the centerline of the drainage holes from the upper edge of the base is 1m.

[0052] Wherein, the diameter of the outlet hole is 4.5 cm.

[0053] Among them, the minimum distance between the baffle and the embankment is 7.5cm.

[0054] Among them, the aquatic plants are water onions, and the influent load is greater than 5gCOD / m 2 .d, the planting density of water onion is 10 plants / m 2 , The hydraulic retention time of the device is 2-3h. All the other are with embodiment 1.

[0055] It can be known by calculation that the amount of water that can be treated every month by the device of this embodiment is 529.8m 3 , the packing replacement cycle is 3 years, and the treatment cost is 0.06 yuan / m³.

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Abstract

The invention discloses a wall-mounted plant packed bed. The wall-mounted plant packed bed is composed of a packed bed, a vegetation layer, a packing layer and a water distribution pipe, wherein the packed bed is composed of a base, baffles, partition plates and supporting frames, the base is fixed to a river levee through the supporting frames, the baffles and the partition plates are arranged onthe base, the baffles are arranged along the river levee and are parallel to the river levee, and the partition plates are perpendicular to the river levee; the baffles, the partition plates, the base and the river levee together surround the packed bed; the packing layer is arranged in the packed bed, and ceramsite and volcanic rock are sequentially laid in the packing layer from bottom to top;the water distribution pipe is buried in the packing layer along the base and is parallel to the river levee; the vegetation layer is planted on the packing layer and consists of aquatic plants; a plurality of drain holes are formed in the baffles; water outlets are formed in two sides of the pipe wall of the water distribution pipe. The wall-mounted plant packed bed is simple and convenient to mount, realizes efficient removal of organic matters and nutrients in river water, improves river water quality and ecological environment, and has certain landscape value.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, and in particular relates to a wall-mounted plant packing bed for treating river water bodies by using river embankments. Background technique [0002] In recent years, with the rapid development of my country's social economy and the acceleration of urbanization, a large amount of sewage has entered the river, which has brought huge pollution hazards to the water environment. Therefore, it is urgent to build a river sewage treatment system or device for black and odorous water treatment. . [0003] At present, the main methods of river water treatment are physical method, chemical method and ecological-biological method. Physical methods mainly refer to dredging sediment, mechanical algae removal, diversion of water to scour and divert water, etc. This type of method can quickly remove pollutants from the river system to improve water quality, but these methods often treat the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/34
CPCC02F3/32C02F3/34
Inventor 陆轶峰刘凌言陈乐陈双荣宋雪燕马兰
Owner YUNNAN UNIV
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