CN211445407U - Purify ecological dam device in black and odorous river course - Google Patents

Abstract

This device is an ecological dam specially designed to treat black and odorous rivers. It is mainly composed of four parts: biological purification tank, sedimentation tank, filtering device and automatic backwashing device. In the biological purification tank, the fast-moving ball is used to fix the high-efficiency black and odorous water body to repair the bacteria, and the aeration system is set to provide the dissolved oxygen necessary for the reproduction of the bacteria. pollutants. After sedimentation in the inclined plate sedimentation tank, it enters the filter device, and the filter device is filled with quartz sand with small particle size, which retains most of the suspended solids and improves the transparency of the water body. When the surface of the filter material is blocked and the water level reaches the height of the top of the siphon pipe, the backwashing device will automatically start, and the clean water in the clean water tank will wash the filter material from bottom to top. . The whole device has the characteristics of high degree of automation, no secondary pollution to the environment, and good water purification effect.

Description

An ecological dam device for purifying black and odorous rivers

Technical field:

The utility model relates to the field of black and odorous water treatment, in particular to an ecological dam for purifying water quality through a biological purification-precipitation-filtration process.

Background technique:

Water is an important natural resource for human survival, and rivers flow in and out of cities and play a vital role in maintaining urban ecological functions. However, in the process of industrialization, due to the weak awareness of human environmental protection due to the lagging urban infrastructure, many rivers have become the discharge places of industrial waste water and domestic sewage. The amount of sewage is huge, exceeding the self-purification capacity of the river, causing the water body to be anoxic and eutrophic, making the water body black and smelly. Black and smelly water bodies have become an urban disease, and almost all cities are spared.

At present, among the treatment methods for black and odorous water bodies, biological methods are widely used due to the advantages of small investment and no secondary pollution. Such methods must first control the source and intercept the pollution, and cut off the pollution source from the source. Place fillers in rivers or ponds, fix indigenous microorganisms or add specific microbial inoculants, use aeration assistance, and use microorganisms to digest and decompose organic matter and toxic substances in the water to achieve water purification.

However, this method only uses the degradation ability of microorganisms to digest pollutants, and the purification cycle is long and the effect is slow. Therefore, how to use microorganisms to quickly purify water has become a hot research topic.

Utility model content:

The purpose of the utility model is to provide an ecological dam device that can quickly realize water purification.

In order to achieve the above object, the technical scheme adopted by the present utility model is:

(1) The black and odorous water body is treated by a combination of three processes of biological purification-precipitation-filtration.

(2) The device adopts water inlet and water distribution baffles 1 and outlet water distribution baffles 6. The baffles are evenly set with water passages with a diameter of 10mm, so that the device can enter and leave water evenly, avoid short circuit of the filler, and improve the utilization rate of the filler.

(3) Black and odorous water body repairing bacteria are added to the biological purification unit, and fast-dividing ball packing 3 is used to fix it. The aeration adopts the perforated aeration method to provide the dissolved oxygen required for the growth of microorganisms.

(4) A sludge storage tank 9 is arranged in the lower part of the sedimentation tank to store sedimented sludge, and a sloping plate filler 8 is arranged in the middle part, which can improve the sedimentation efficiency of the sludge. An overflow weir 7 is set on the upper part to make the water flow smoothly.

(5) The filter chamber adopts quartz sand 17 for filtration, which can further remove insoluble solid particles and improve the transparency of the effluent.

(6) The automatic backwashing device is composed of a siphon pipe 13 and a siphon destruction pipe 12. When the surface of the quartz sand 17 is blocked, the water cannot pass through the bottom clean water area 19 and the bottom clean water area-clean water tank connecting pipe 18 to reach the clean water tank 20 and be discharged from the water outlet 14. , the water level in the siphon pipe 13 and the high-level water tank 11 rises, when it rises to the top of the siphon pipe 13, the water falls from the top, the backwashing device starts, and the clean water in the clean water tank 20 backwashes the quartz sand 17, and the backwash water enters the backwash Liquid collection tank 22. Completely avoid contamination of subsequent river channels. When the water level of the clean water tank 20 drops to the siphon destruction pipe 12, the siphon pipe 13 enters the air, and the backwashing ends.

The beneficial effects of the present utility model are:

(1) After multi-stage purification, the removal efficiency of organic matter in the water is high, the water quality is high in transparency, and the dissolved oxygen content in the water is high.

(2) The ecological dam device can realize automatic backwashing without personnel operation.

(3) The ecological dam itself is a kind of dam. When controlling the source and intercepting the pollution, the ecological dam only needs to be hoisted into the river channel, and the edges and corners are blocked to save building materials.

Description of drawings:

Figure 1: Internal Structure Diagram

Detailed ways:

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

As shown in the figure, the ecological dam is mainly divided into four parts: biological purification tank, sedimentation tank, filter device and automatic backwash device. The biological purification tank is composed of the inlet water distribution partition 1, the outlet water distribution partition 6, the speed ball packing 3, the packing partition 5, the aeration pipeline 4, and the aerator 2. The sedimentation tank is composed of a mud storage tank 9 , a sloping plate filler 8 , a mud discharge port 10 and an overflow weir 7 . The filtration device is composed of a high-level water tank 11, a high-level water tank-filter chamber communication pipe 15, a filter chamber 16 (quartz sand partition 21, quartz sand 17, bottom clean water area 19, bottom clean water area-clean water tank communication pipe 18, clean water tank 20 and outlet). Nozzle 14) is composed. The automatic backwashing device is composed of a siphon pipe 13 , a siphon destruction pipe 12 and a backwashing liquid collecting tank 22 .

After the black and odorous water enters the device from the water inlet pipe, it is evenly distributed through the water inlet and water distribution partition 1, and then enters the biochemical treatment unit. The aeration pipeline 4 aerates it to provide the oxygen necessary for the growth of microorganisms. After the water is evenly discharged through the water outlet and water distribution partition 6, it enters the sedimentation treatment unit. The water flows from the bottom to the top through the inclined plate filler 8. The sludge sinks to the sludge storage tank 9 when the inclined plate meets the inclined plate, and the sludge is regularly discharged from the sludge discharge port 10. The water goes up to the overflow weir 7 and enters the high-level water tank 11, reaches the filter tank 16 through the high-level water tank-filter chamber communication pipe 15, reaches the bottom clean water area 19 after being filtered by the quartz sand 17, and then enters the clean water through the bottom clean water area-clean water tank communication pipe 18. The tank 20 is discharged from the water outlet 14 .

The ecological dam purification route for black and odorous water is: water inlet→water inlet water distribution partition 1→speed ball packing 3→outflow water distribution partition 6→inclined plate packing 8→overflow weir 7→high water tank 11→high water tank - Filter chamber connecting pipe 15 → Quartz sand 17 → Bottom clean water area 19 → Bottom clean water area - Clean water tank connecting pipe 18 → Clean water tank 20 → Water outlet 14.

With the continuous operation of the filtering action in the filter chamber, filter residues gradually begin to form inside and on the surface of the quartz sand 14 . Because the water in the upper part of the quartz sand 14 cannot penetrate the quartz sand layer, the water level of the high water tank 11 and the siphon 13 rises continuously. When the water level of the high water tank 11 exceeds the highest point of the siphon 13, the water flows out from the siphon 13 to form a siphon. The clean water in the clean water tank 20 backwashes the quartz sand 17 through the bottom clean water area-clean water tank communication pipe 18, and flows from the siphon 13 to the backwash liquid collection tank 22 together with the water from the high water tank 11, and is cleaned regularly. With the progress of backwashing, the water level in the clean water tank 20 continues to drop. When the water level drops to the mouth of the siphon breaking pipe 12, air enters the siphon breaking pipe 12, causing air to enter the siphon pipe 13. The backwashing ends and the filtration starts again. .

Claims (8)

1. an ecological dam device for purifying black and odorous river course, is characterized in that: comprise biological purification tank, sedimentation tank, filter device and automatic backwashing device; The biological purification tank includes the inlet water distribution partition, the outlet water distribution partition, the packing partition, the speed-dividing ball packing, and the aeration pipeline. Below the board, add black and odorous water body repair bacteria into the pool; The aerator is located on the equipment table above the device; The lower part of the sedimentation tank is provided with a mud storage tank, the middle part is provided with inclined plate packing, and the upper part is provided with an overflow weir; The filter device includes a high-level water tank, a high-level water tank-filter chamber connecting pipe, a filter chamber, a bottom clean water area-clean water tank connecting pipe, a clean water tank and a water outlet. The filter chamber includes a partition plate, quartz sand, and a bottom clean water area. The silo connecting pipe is used for the high-level water tank and the filter device. The quartz sand is located above the partition plate, and the bottom clean water area is located under the partition plate. The bottom clean water area-clean water tank connecting pipe connects the clean water tank and the bottom clean water area. between warehouses; The automatic backwashing device includes a siphon pipe, a siphon destruction pipe and a backwashing liquid collection tank. The siphonic pipe is connected to the filter bin and the backwashing liquid collection tank, and the siphonic destruction pipe is connected to the clean water tank and the top of the siphon pipe. 2 . The ecological dam device for purifying black and odorous rivers according to claim 1 , wherein all water treatment systems are placed inside an ecological dam. 3 . 3 . The ecological dam device for purifying black and odorous river courses according to claim 1 , wherein the entire ecological dam is placed in the river course. 4 . 4 . The ecological dam device for purifying black and odorous rivers according to claim 1 , wherein the ecological dam combines biochemical treatment, sedimentation treatment, filtration treatment and backwashing device. 5 . 5 . The ecological dam device for purifying black and odorous river channels according to claim 1 , wherein the biochemical treatment unit is provided with a water inlet and water distribution baffle and an outlet water distribution baffle. 6 . 6 . The ecological dam device for purifying black and odorous rivers according to claim 1 , characterized in that: the sedimentation tank is provided with a mud storage tank, inclined pipe packing and overflow weir. 7 . 7 . The ecological dam device for purifying black and odorous rivers according to claim 1 , wherein the ecological dam device is provided with an automatic backwashing device. 8 . 8 . The ecological dam device for purifying black and odorous rivers according to claim 1 , wherein the siphon pipe outlet of the backwashing device is arranged in the backwashing liquid collection tank. 9 .

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