CN203065295U - Settling tower for wastewater treatment - Google Patents

Abstract

The utility model relates to sewage treatment equipment, which provides a sedimentation tower for wastewater treatment with high biochemical properties, which can quickly sink inorganic particles such as sediment, effectively remove high-concentration sewage chroma and COD in sewage, and includes a tower body and an inlet. Sewage pipes, outlet pipes, a buffer sedimentation device installed in the middle of the tower body to allow solid particles to settle quickly, a micro-electrolytic filler filter layer installed above the buffer sedimentation device in the tower body to remove high-concentration sewage chroma and COD in water, The filter packing layer used for biological oxidation, adsorption and filtration of water is arranged above the micro-electrolysis packing filter layer in the tower body. The upper part of the tower body is located below the tower cover and is also provided with a radioactive water outlet device. A buffer tank is located at the lower part of the buffer and sedimentation device, and the sewage inlet pipe passes through the tower cover, radioactive water outlet device, filter packing layer, micro-electrolysis packing filter layer and buffer sedimentation device from top to bottom in order to connect with the buffer tank in the tower body , the water outlet pipe is located on the radioactive water outlet device.

Description

A sedimentation tower for wastewater treatment

technical field

The utility model relates to waste water treatment equipment, in particular to a waste water treatment sedimentation tower.

Background technique

For a long time, industrial sewage has been one of the problems restricting the rapid development of industry, and how to deal with industrial sewage is also a concern of everyone. Therefore, how to scientifically and rationally treat industrial sewage, recycle water resources and fibers, turn waste into treasure, and generate good economic benefits has always been a subject of hard work by experts at home and abroad. The sedimentation tower is a kind of mud-water separation device, which mostly separates sludge with finer particles. It can be used before and after biochemical treatment of sewage. The existing sedimentation tower is mainly composed of a tower body, an overflow pipe installed on the upper part of the tower body, and an overflow pipe installed at the bottom of the tower. The sedimentation tower is equipped with a muddy water inlet, and the sewage enters the sedimentation tank from the muddy water inlet, and the purpose of sedimentation is achieved through the natural sedimentation of the sewage in the sedimentation tank. This kind of sedimentation working method takes a long time for particle sedimentation and cannot reach the production process. The purpose of rapid water recycling does not have the function of filtration. When draining, part of the sludge and suspended matter will be discharged with the water flow, and the separation and filtration effect is not good; and the above-mentioned existing wastewater treatment sedimentation tower cannot remove the chroma of high-concentration sewage. The COD removal rate is low, and the biodegradability of sewage is low.

Utility model content

In view of the above existing problems, the utility model provides a simple structure, low cost, rapid sinking of inorganic particles such as sediment, good separation and filtration effect, high recycling rate, and can effectively remove high-concentration sewage chroma and COD in water. Sedimentation tower for wastewater treatment with high biodegradability of sewage.

In order to solve this technical problem, the utility model adopts the following scheme: a wastewater treatment sedimentation tower, including a tower body installed on a bracket, a tower cover arranged on the upper part of the tower body, and a sludge collection bucket is arranged at the bottom of the tower body, The lower part of the sludge collection bucket is provided with a sludge outlet, and also includes a sewage inlet pipe, an outlet pipe, a buffer sedimentation device arranged in the middle of the tower body to allow solid particles to quickly settle, and a buffer sedimentation device arranged above the buffer sedimentation device in the tower body. The micro-electrolysis packing filter layer for removing the chromaticity of high-concentration sewage and COD in water, and the filter packing layer for biological oxidation, adsorption and filtration of water arranged above the micro-electrolysis packing filter layer in the tower body, the upper part of the tower body There is also a radioactive water outlet device located below the tower cover. A buffer tank is provided in the lower part of the buffer sedimentation device in the tower body. The sewage inlet pipe passes through the tower cover, radioactive water outlet device, filter packing layer, The micro-electrolysis packing filter layer and the buffer sedimentation device are connected to the buffer tank in the tower body, and the water outlet pipe is arranged on the radioactive water outlet device.

A further improvement is: the buffering and sedimentation device includes an outer cylindrical body arranged on the inner side of the tower body and an inner cylindrical body arranged in the middle of the inner side of the outer cylindrical body for inserting and perforating the sewage pipe, and the outer cylindrical body Between the body and the inner cylindrical body, there are slant plates for buffering and settling obliquely and evenly distributed along the radial direction.

It is further improved that: the radioactive water outlet device includes an inner cylinder arranged in the tower body, an inner cylinder for inserting and perforating the sewage pipe in the middle, and a water collection ring set outside the tower body with the inner cylinder as the center of the circle, the water collection ring and Drainage pipes are evenly distributed along the circumference between the inner cylinders, and the drainage pipes are connected with the water collecting rings. The water-permeable holes are evenly distributed on the drainage pipes. The water collecting rings are provided with water outlets, and the water outlet pipes are located at On the water outlet of the water collection ring.

It is further improved that: the micro-electrolytic filler filter layer includes an inner cylinder in the middle that is provided with a hole for the sewage pipe to be inserted into, and an outer cylinder that is set on the inner side of the tower body with the inner cylinder as the center of a circle. An iron-carbon micro-electrolytic filler is provided, and the upper and lower parts of the inner and outer cylinders are respectively provided with cover plates, and each cover plate is evenly distributed with water-through micro-holes.

A further improvement is: the tower body is also provided with an acid-base regulator feeding pipe, the discharge end of the feeding pipe is connected to the buffer tank, and the feeding end of the feeding pipe extends out of the tower to connect with the external regulator feeding equipment . the

A further improvement is that: the cross-section of the sludge collection hopper gradually decreases from top to bottom.

A further improvement is that: the water inlet pipe is provided with a water inlet valve.

A further improvement is: the filter packing layer is a spherical filter packing layer.

By adopting the aforementioned technical scheme, the utility model has the beneficial effect: the wastewater treatment sedimentation tower of the utility model is equipped with a buffer sedimentation device in the middle of the tower body, and the sewage enters the tower body from the sewage inlet pipe and diffuses to the surrounding after being buffered by the buffer tank, and then smoothly When the sewage is rising, solid suspended matter with a density greater than water, such as fillers, fine fibers, mud yarn and other inorganic particles, sinks continuously and passes through the buffer sedimentation device to accelerate the sedimentation. Every two seconds of the buffer sedimentation device The block buffer sedimentation inclined plate is equivalent to a small sedimentation tank, which greatly shortens the sedimentation time of particles, and uses the principle of vertical flow to achieve the purpose of rapid sedimentation; the tower body is located above the buffer sedimentation device with a micro-electrolytic filler filter layer , the micro-electrolytic filler filter layer can electrolytically treat the water quality that rises after separation to remove heavy metals, toxic pollutants, phosphorus, etc.; The sewage flowing through the electrolytic packing filter layer can be further biologically oxidized, adsorbed and filtered through the spherical filter packing layer, and then flow out to the surroundings of the tower through the permeable holes of the radioactive drainage pipe of the radioactive water outlet device at the top of the sedimentation tower, and then pass through the top of the tower. The outer water collection ring flows out of the outlet pipe, and the small permeable holes can further intercept and filter the suspended impurities to ensure the quality of the outlet water. This new type of wastewater treatment sedimentation tower combines the principles of the flat flow sedimentation method and the inclined plate sedimentation method, and combines the advantages of the two sedimentation methods, and can also combine the chemical method to make the discharged white water quickly settle, so as to achieve the reuse of water in the production process. The purpose of circulation, its simple structure, low cost, sediment and other inorganic particles can sink quickly, good separation effect, high recycling rate, which brings high economic benefits to enterprises, especially suitable for small and medium-sized papermaking enterprises; and can use The micro-electrolytic material filled in the wastewater generates a 1.2V potential difference to electrolyze the wastewater to achieve the purpose of degrading organic pollutants. After passing through the water, countless micro-battery systems will be formed in the micro-electrolysis packing cylinder, forming an electric field in its action space. The new ecology [H] and Fe2 + produced during the treatment process can undergo redox reactions with many components in the wastewater, such as the chromophores or auxochromes that can destroy the colored substances in the colored wastewater, and even break Chain, to achieve the effect of degradation and decolorization; the generated Fe2 + is further oxidized into Fe3 +, and their hydrates have strong adsorption and flocculation activities, especially after adding alkali to adjust the pH value, ferrous hydroxide and ferric hydroxide colloids are formed Flocculants, their adsorption capacity is much higher than that of ferric hydroxide colloids obtained by hydrolysis of general pharmaceuticals, and can adsorb a large number of tiny particles, metal particles and organic macromolecules dispersed in water. Their working principles are based on electrochemical, oxidation, reduction, and physical adsorption. And the combined effect of flocculation and sedimentation to treat wastewater. It has the advantages of wide application range, good treatment effect, low cost, convenient operation and maintenance, and no need to consume power resources. The precipitation separation tower can be used for the treatment of refractory high chroma wastewater, not only can greatly reduce COD and chroma, but also can greatly improve the biodegradability of wastewater.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the utility model.

Fig. 2 is a cross-sectional view along line A-A of Fig. 1 .

Fig. 3 is a B-B sectional view of Fig. 1 .

Fig. 4 is a C-C sectional view of Fig. 1 .

Detailed ways

The utility model is further described now in conjunction with accompanying drawing and specific embodiment.

As shown in Figure 1, the embodiment of the utility model discloses a sedimentation tower for wastewater treatment, which includes a tower body 1 installed on a bracket 11, a tower cover 2 arranged on the upper part of the tower body 1, and the bottom of the tower body 1 is provided with a sewage Mud collection bucket 12, the cross-section of the sludge collection bucket 12 gradually decreases from top to bottom, the bottom of the sludge collection bucket 12 is provided with a mud discharge port, and the sewage discharge port is provided with a mud discharge valve 121, which also includes The sewage inlet pipe 3, the water outlet pipe 4, the buffer sedimentation device 5 arranged in the middle of the tower body 1 to allow solid particles to settle quickly, and the buffer sedimentation device 5 arranged above the buffer sedimentation device 5 in the tower body 1 are used to remove high-concentration sewage chroma and The micro-electrolysis filler filter layer 6 of COD in water, the spherical filter filler layer 7 used for biological oxidation, adsorption and filtration of water, which is arranged above the micro-electrolysis filler filter layer 6 in the tower body 1, the upper part of the tower body 1 A radioactive water outlet device 8 is also provided below the tower cover 2, a buffer tank 13 is provided at the bottom of the buffer sedimentation device 5 in the tower body 1, and the sewage inlet pipe 3 passes through the tower cover 2, The radioactive water outlet device 8, the spherical filter filler layer 7, the micro-electrolysis filler filter layer 6 and the buffer sedimentation device 5 are connected to the buffer tank 13 in the tower body 1, and the inlet sewage pipe 3 is provided with a water inlet valve 31, and the outlet The water pipe 4 is arranged on the radioactive water outlet device 8 .

As shown in Fig. 3, the buffering and sedimentation device 5 includes an outer cylindrical body 51 arranged on the inner side of the tower body 1 and an inner cylindrical body 52 arranged in the middle part of the inner side of the outer cylindrical body 51 for inserting and perforating the sewage pipe 3, Between the outer cylindrical body 51 and the inner cylindrical body 52 , there are obliquely and evenly distributed buffering and sedimentation sloping plates 53 along the radial direction.

As shown in Fig. 2, the radioactive water outlet device 8 includes an inner cylinder 81 arranged in the tower body 1, an inner cylinder 81 provided in the middle for inserting the sewage pipe 3 into a hole, and a water collection ring 82 arranged on the outside of the tower body 1 with the inner cylinder 81 as the center of circle. , between the water collection ring 82 and the inner cylinder 81, there are drainage pipes 83 evenly distributed along the circumference, the drainage pipes 83 communicate with the water collection ring 82, and the drainage pipes 83 are evenly distributed with water-permeable small holes. The water collecting ring 82 is provided with a water outlet, and the water outlet pipe 4 is arranged on the water outlet of the water collecting ring 82 .

As shown in Figure 4, the micro-electrolytic packing filter layer 6 includes an inner cylinder 61 that is provided with the inner cylinder 61 that is inserted into the perforation for the sewage pipe in the middle and is an outer cylinder 62 that is arranged on the inner side of the tower body with the inner cylinder 61 as the center of circle, the inner and outer cylinders Iron-carbon micro-electrolytic fillers 63 are arranged between the cylinders, and cover plates 64 are respectively provided on the upper and lower parts of the inner and outer cylinders, and water-through micropores are evenly distributed on each cover plate 64 .

The tower body 1 is also provided with an acid-base regulator feed pipe 14, the discharge end of the feed pipe 14 is connected to the buffer tank 13, and the feed end of the feed pipe 14 stretches out of the tower body 1 to connect with the external regulator feed equipment. connected.

The wastewater treatment sedimentation tower of the utility model is equipped with a buffer sedimentation device in the middle of the tower body. The sewage enters the tower body from the sewage inlet pipe, is buffered by the buffer tank, diffuses to the surroundings, and then flows steadily to the top of the tower. Suspended solids larger than water, such as fillers, fine fibers, mud yarn and other inorganic particles, sink continuously and pass through the buffer sedimentation device to accelerate sedimentation. Every two buffer sedimentation inclined plates of the buffer sedimentation device is equivalent to a small sedimentation tank , so that the particle precipitation time is greatly shortened, and the principle of vertical flow is used to achieve the purpose of rapid precipitation; the tower body is located above the buffer sedimentation device with a micro-electrolysis packing filter layer, and the micro-electrolysis packing filter layer can separate the backward The rising water quality is electrolytically treated to remove heavy metals, toxic pollutants, phosphorus, etc.; a spherical filter packing layer is arranged above the micro-electrolytic packing filter layer in the tower body, and the sewage flowing through the micro-electrolytic packing filter layer can pass through the spherical filter packing. After the layer is further biologically oxidized, adsorbed and filtered, it flows out to the surroundings of the tower through the permeable holes of the radioactive drainage pipe of the radioactive water outlet device at the top of the sedimentation tower, and then flows out of the outlet pipe through the water collecting ring outside the tower top. The permeable holes can The suspended impurities are further intercepted and filtered to ensure the quality of the effluent. This new type of wastewater treatment sedimentation tower combines the principles of the flat flow sedimentation method and the inclined plate sedimentation method, and combines the advantages of the two sedimentation methods, and can also combine the chemical method to make the discharged white water quickly settle, so as to achieve the reuse of water in the production process. The purpose of circulation, its simple structure, low cost, sediment and other inorganic particles can sink quickly, good separation effect, high recycling rate, which brings high economic benefits to enterprises, especially suitable for small and medium-sized papermaking enterprises; and can use The micro-electrolytic material filled in the wastewater generates a 1.2V potential difference to electrolyze the wastewater to achieve the purpose of degrading organic pollutants. After passing through the water, countless micro-battery systems will be formed in the micro-electrolysis packing cylinder, forming an electric field in its action space. The new ecology [H] and Fe2 + produced during the treatment process can undergo redox reactions with many components in the wastewater, such as the chromophores or auxochromes that can destroy the colored substances in the colored wastewater, and even break Chain, to achieve the effect of degradation and decolorization; the generated Fe2 + is further oxidized into Fe3 +, and their hydrates have strong adsorption and flocculation activities, especially after adding alkali to adjust the pH value, ferrous hydroxide and ferric hydroxide colloids are formed Flocculants, their adsorption capacity is much higher than that of ferric hydroxide colloids obtained by hydrolysis of general pharmaceuticals, and can adsorb a large number of tiny particles, metal particles and organic macromolecules dispersed in water. Their working principles are based on electrochemical, oxidation, reduction, and physical adsorption. And the combined effect of flocculation and sedimentation to treat wastewater. It has the advantages of wide application range, good treatment effect, low cost, convenient operation and maintenance, and no need to consume power resources. The precipitation separation tower can be used for the treatment of refractory high chroma wastewater, not only can greatly reduce COD and chroma, but also can greatly improve the biodegradability of wastewater.

The above embodiments are only for the purpose of illustrating the utility model, rather than limiting the utility model, and those skilled in the art do not depart from the spirit and scope of the utility model, and various transformations and changes made belong to the utility model The scope should be defined by the claims.

Claims (8)

1. wastewater treatment settling tower, comprise the tower body that is installed on the support, be located at the tower lid on tower body top, described tower body bottom is provided with the mud collection bucket, described mud collection bucket bottom is provided with mud discharging mouth, it is characterized in that: also comprise into waste pipe, rising pipe, be located at middle part in the tower body and allow the buffering settler of solid particulate rapid precipitation, be located at the micro-electrolysis stuffing filtering layer that is used for removing high-concentration sewage colourity and water COD of described buffering settler top in the tower body, be located at described micro-electrolysis stuffing filtering layer top in the tower body be used for water is carried out bio-oxidation, absorption and the filter packing layer that filters, the below that described tower body top is positioned at the tower lid also is provided with the radioactivity discharging device, the bottom that is positioned at the buffering settler in the described tower body is provided with dashpot, described advance waste pipe by last from passing the tower lid down successively, the radioactivity discharging device, the filter packing layer, micro-electrolysis stuffing filtering layer and buffering settler link to each other with dashpot in the tower body, and described rising pipe is located on the radioactivity discharging device.

2. wastewater treatment settling tower according to claim 1, it is characterized in that: the middle part that described buffering settler comprises the outside cylinder cylindrical shell that is arranged on the tower body inboard and is located at outside cylinder cylindrical shell inboard is provided with for advancing the inner cylindrical tube body that waste pipe inserts perforation, the tilting buffering precipitation inclined plate that is evenly equipped with radially between described outside cylinder cylindrical shell and the inner cylindrical tube body.

3. wastewater treatment settling tower according to claim 1, it is characterized in that: described radioactivity discharging device comprise be located in the tower body, the middle part is provided with for advancing that waste pipe inserts the inner core of perforation and being the collecting ring that the tower body outside is located in the center of circle with the inner core, the edge circumferentially is evenly equipped with water shoot between described collecting ring and the inner core, described water shoot is connected with collecting ring, be evenly equipped with permeable aperture on described each water shoot, described collecting ring is provided with water outlet, and rising pipe is located on the water outlet of collecting ring.

4. wastewater treatment settling tower according to claim 1, it is characterized in that: described micro-electrolysis stuffing filtering layer comprises that the middle part is provided with for advancing that waste pipe inserts the inner cylinder of perforation and being the exterior circular column that the tower body inboard is located in the center of circle with interior cylinder, be provided with iron-carbon micro-electrolysis filler between the described inside and outside right cylinder, described inside and outside cylindrical top and bottom are respectively equipped with cover plate, are evenly equipped with the water flowing micropore respectively on described each cover plate.

5. wastewater treatment settling tower according to claim 4, it is characterized in that: also be provided with the acid-base modifier filling tube on the described tower body, the discharge end of described filling tube connects dashpot, and the feed end of filling tube stretches out outside the tower body and is connected with outside conditioning agent feeding equipment.

6. according to claim 1 or 2 or 3 described wastewater treatment settling towers, it is characterized in that: the cross section of described mud collection bucket is reduced down certainly gradually by last.

7. according to claim 1 or 2 or 3 described wastewater treatment settling towers, it is characterized in that: describedly advance waste pipe and be provided with inlet valve.

8. according to claim 1 or 2 or 3 described wastewater treatment settling towers, it is characterized in that: described filter packing layer is spherical filter packing layer.

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