CN214457491U - Comprehensive sewage treatment device - Google Patents

Abstract

The utility model provides a synthesize sewage treatment plant has set gradually air supporting pond (4), bological aerated filter (10), ozone pond (13) and clean water basin (14) on the sewage treatment direction, wherein air supporting pond (4) bottom is provided with aeration equipment (5), carries out the air supporting through aeration equipment (5) to sewage and handles, aeration equipment (5) for receiving aeration equipment a little, aeration equipment connects air compressor (3). Sewage enters the water inlet pipe (2) through the sewage pump (1), the water inlet pipe (2) is connected with the air flotation tank (4), and the water inlet pipe (2) is provided with a flocculating agent inlet. The process of the utility model discloses sewage treatment plant's processing, organic matters such as aquatic ammonia nitrogen obtain very big reduction, and phosphorus, nitrogen level also can reduce the requirement to the environmental protection, have increased the dissolved oxygen content of aquatic, improve the water transparency, and then have optimized water quality of water.

Description

Comprehensive sewage treatment device

Technical Field

The utility model belongs to the sewage treatment field provides a combine multiple means's comprehensive sewage treatment plant, can be used to handle city, rural domestic sewage.

Background

Domestic sewage in cities in China mainly comes from domestic sewage of residents, and compared with industrial sewage of enterprises, the domestic sewage has lower concentration than the sewage produced in factories. In urban domestic life, the composition and quality of sewage produced by different domestic water facilities are different. Therefore, the main problems faced by the municipal sewage treatment in China at present are the following:

1. the degree of pollution of municipal sewage is overloaded and difficult to assess: along with the development of economy in China, the living standard of people gradually becomes diversified, and the demand of people on domestic water is higher and higher, so that the complexity of urban water pollution components is caused, the pollution load and seasonal change of urban domestic water pollution are difficult to control and are not transferred by the will of people, and therefore, much inconvenience is brought to the selection and design of the scheme for treating urban domestic water pollution.

2. The urban domestic water pollution treatment is influenced by social factors and natural factors: in many cities, experimental researches are mostly adopted in the aspect of water pollution treatment technology, but the actual operation process is greatly influenced by the external environment in terms of the current situation. Moreover, in different areas, different economic development levels and artificial factors also have certain influence on the treatment technology of the urban domestic sewage, and the urban sewage treatment cannot achieve the expected effect easily due to the continuous change of the natural environment.

For the water body, the polluted water body can change the biological community in the water body besides the irreversible damage to the water quality and the self-purification capacity, thereby greatly reducing the use function and the value of the water body; in addition, the peculiar smell emitted by the polluted water body can pollute the surrounding air, directly damage the health of residents passing by or living around, has poor appearance and influence the city appearance and the whole ecological environment quality, and can not be treated for a long time or even destroy the ecological balance to form the black and odorous water body.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel comprehensive treatment method of domestic sewage aiming at the current difficult sewage treatment, various sewage types and the easy recurrence of water treatment, and is a comprehensive sewage treatment device combining air flotation separation, biological aerated filter and ozone oxidation. Can effectively remove organic pollutants in water, reduce pollution load, improve the content of dissolved oxygen in water, improve the transparency of water and purify water quality.

The utility model discloses the technical problem who solves: the urban and rural domestic sewage is complicated, difficult to treat and easy to relapse.

The utility model provides a technical scheme that its technical problem adopted: the utility model provides a synthesize sewage treatment plant, has set gradually air supporting pond, bological aerated filter, ozone pond and clean water basin along sewage treatment direction, wherein air supporting bottom of the pool portion is provided with aeration equipment, carries out the air supporting to sewage through aeration equipment and handles, aeration equipment for receiving a little aeration equipment, aeration equipment connects air compressor. Sewage gets into the inlet tube through the sewage pump, advances water piping connection air supporting pond, set up the flocculating agent inlet port on the inlet tube, connect the flocculating agent storage tank.

Furthermore, a packing layer is arranged in the biological aerated filter, the packing layer is of a two-layer structure, the diameter of the lower-layer ceramsite packing is 3-4cm, the diameter of the upper-layer ceramsite packing is 4-6cm, and an aeration system is arranged below the packing layer. The ceramsite is a porous material, meets the requirements of methods such as strength, wear resistance, water resistance, corrosion resistance and the like, is easy to loosen during backwashing, is easy to wash a filter material layer, saves the washing water, avoids serious sludge accumulation caused by the filter material layer and influences the water treatment effect, and is a better filter material with the relative density of 1.1 after water absorption.

Furthermore, the aeration system adopts a perforation air distribution system, a perforation support plate is arranged at the bottom of the biological aerated filter, a surrounding perforation pipe is arranged on the perforation support plate, uniform aeration holes are formed in the surface of the perforation pipe, a bearing plate is arranged above the perforation support plate and at the bottom of the packing layer, a plurality of small holes are uniformly formed in the bearing plate, and the diameter of each small hole is smaller than that of the filter material.

Furthermore, the effluent of the biological aerated filter enters the ozone tank after passing through the static mixer, the effluent is mixed with ozone in the static mixer and then enters the ozone tank, and the static mixer is provided with an ozone inlet connected with an ozone generator.

Furthermore, a back washing device is also arranged and comprises a water suction pump, a back washing pipeline, an air compressor and a back washing water distribution and air distribution pipe, wherein one end of the back washing pipeline is connected with the clean water tank through the water suction pump, the other end of the back washing pipeline is connected with the back washing water distribution and air distribution pipe, and the air compressor is connected with the back washing water distribution and air distribution pipe through a pipeline.

Furthermore, backwashing water enters the air floatation tank through a backwashing water return pipe.

Furthermore, a slag scraper is arranged at the upper part of the air floatation tank.

Furthermore, the backwashing period is 24 hours, and the treatment effect is better.

Furthermore, the aeration system adopts a layer of pebble bearing layer laid on a bearing plate of the perforated gas distribution system to serve as a buffer between the pebble bearing layer and the filter material, and further plays a role in gas distribution and water distribution.

Furthermore, an air inlet pipe of the perforation air distribution system is connected with an air compressor for aeration, the air is fully mixed with the water body, oxygen atoms in the air are transferred into the water, the dissolved oxygen in the water is increased, and the water quality is purified.

The sewage treatment equipment and the sewage treatment method of the utility model have the advantages that:

1. the utility model provides a comprehensive sewage treatment device combines micro-nano aeration with air supporting, the bubble is even and fine, the oxygenation effect is superior to traditional bottom aeration, make the air supporting separation effect better, make the air fully mix with the surrounding water body as far as possible, carry out oxidation reaction, let the oxidative decomposition speed of water organic pollution accelerate, can play important effect to the effect of water purification, under this environment, the aerobic biochemical efficiency of microorganism exerts to the optimum state, improves the water transparency effectively; meanwhile, sufficient oxygen accelerates the decomposition rate of organic pollutants, degrades pollutants in water and evolves water.

2. The utility model provides an aeration biological filter that comprehensive sewage treatment plant adopted, wherein the haydite not only can adsorb impurity, can also adhere to the microorganism, for it provides the place, forms the biomembrane, is that collection biodegradation, solid-liquid separation are in an organic whole, and effectual degradation aquatic pollutants, aeration oxygenation simultaneously improves water transparency.

3. The utility model provides a synthesize sewage treatment plant uses ozone oxidation to water treatment in, ozone has multiple effects such as disinfecting, disinfection, decoloration, deodorization, get rid of aquatic COD, nitrogen, applies sewage treatment in, reaches the purpose of degradation water COD, ammonia nitrogen, total phosphorus, increases aquatic dissolved oxygen content, promotes the water transparency, further promotes quality of water.

Description of the drawings:

FIG. 1 is a schematic view of the sewage treatment apparatus of the present invention.

Detailed Description

In order to better understand the present invention, the following embodiments are further illustrated to embody the functions of the present invention. However, the present invention is not limited to the following examples.

The utility model is suitable for the treatment of urban and rural domestic sewage.

As shown in the figure I, the utility model provides a comprehensive sewage treatment device, which is provided with an air flotation tank 4, an aeration biological filter 10, an ozone tank 13 and a clean water tank 14 in sequence along the sewage treatment direction. Sewage in the river course is gone into inlet tube 2 through sewage pump 1 pump, and the inlet tube other end connects air supporting pond 4, has aeration equipment 5 including aeration head and aeration pipe in the air supporting pond, and the air after air compressor 3 pressurizes is concentrated to be carried aeration pipe, disperses to the sewage in through the aeration head, and aeration equipment 5 of this embodiment is receive aeration equipment a little.

The sewage treated by the air floatation tank 4 enters the biological aerated filter 10 through the sewage pipeline 6 for treatment, a packing layer 11 is arranged in the biological aerated filter 10, the packing layer 11 is of a two-layer structure, the diameter of the lower-layer ceramsite packing is 3cm, the diameter of the upper-layer ceramsite packing is 5cm, and an aeration system is arranged below the packing layer 11. The aeration system adopts a perforated gas distribution system, a perforated support plate is arranged at the bottom of the biological aerated filter 10, a surrounding perforated pipe is arranged on the perforated support plate, uniform aeration holes are formed in the surface of the perforated pipe, a bearing plate is arranged above the perforated support plate and at the bottom of the packing layer 11, a plurality of small holes are uniformly formed in the bearing plate, the diameter of each small hole is smaller than that of the filter material, and a pebble bearing layer is laid on the bearing plate and used as a buffer between the pebble bearing layer and the filter material to further play a role in gas distribution and water distribution. The air inlet pipe of the perforation air distribution system is connected with the air blower 8 for aeration, the air is fully mixed with the water body, oxygen atoms in the air are transferred into the water, the dissolved oxygen in the water is increased, and the water quality is purified.

The sewage treated by the biological aerated filter 10 enters an ozone tank 13 for ozone oxidation treatment, the effluent of the biological aerated filter 10 enters the ozone tank 13 after passing through a static mixer 12, the effluent is mixed with ozone in the static mixer 12 and then enters the ozone tank 13, and the static mixer 12 is provided with an ozone inlet connected with an ozone generator. Ozone and sewage are mixed in the static mixer 12 and then enter the ozone tank 1 for oxidation, and the ozone oxidizes and sterilizes the water body and degrades COD, ammonia nitrogen and total phosphorus of the water body. The sewage treated by the ozone tank 13 flows into a clean water tank 14, and is discharged after being clarified.

In another embodiment, a flocculant adding port is arranged on the water inlet pipe 2 and is connected with a flocculant storage tank. The flocculating agent is selected from at least one of aluminum sulfate, aluminum chloride, ferric sulfate, ferric chloride and PAM (polyacrylamide).

In another embodiment, a backwashing device is further arranged, the backwashing device comprises a water pump 15, a backwashing pipeline 7-1, an air compressor 9 and a backwashing water-distributing and air-distributing pipe, one end of the backwashing pipeline 7-1 is connected with a clean water tank 14 through the water pump 15, the other end of the backwashing pipeline is connected with the backwashing water-distributing and air-distributing pipe, and the air compressor 9 is connected with the backwashing water-distributing and air-distributing pipe through a pipeline. The backwashing water enters the floatation tank 4 through a backwashing water return pipe 7-2.

In another embodiment, a slag scraper is arranged at the upper part of the air flotation tank 4, and the scum of the air flotation treatment is cleaned periodically.

Through the treatment of the sewage treatment device, the ammonia nitrogen and other organic matters in the water are greatly reduced, the phosphorus and nitrogen levels can also be reduced to meet the requirement of environmental protection, the dissolved oxygen content in the water is increased, the transparency of the water body is improved, and the water quality of the water body is optimized.

Finally, it should be pointed out that the above-mentioned embodiments are only used to illustrate the technical solution of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solution depart from the spirit and scope of the technical solution of the practical novel embodiments.

Claims (7)

1. The utility model provides a synthesize sewage treatment plant, its characterized in that has set gradually air supporting pond (4), bological aerated filter (10), ozone pond (13) and clean water basin (14) on the sewage treatment direction, wherein air supporting pond (4) bottom is provided with aeration equipment (5), carries out the air supporting through aeration equipment (5) to sewage and handles, aeration equipment (5) for receiving aeration equipment a little, aeration equipment connects air compressor (3), sewage gets into inlet tube (2) through sewage pump (1), and air supporting pond (4) are connected in inlet tube (2), set up the flocculating agent inlet on inlet tube (2), connect the flocculating agent storage tank.

2. The integrated sewage treatment device according to claim 1, wherein the biological aerated filter (10) is internally provided with a packing layer (11), the packing layer (11) has a two-layer structure, the diameter of the lower-layer ceramsite packing is 3-4cm, the diameter of the upper-layer ceramsite packing is 4-6cm, and an aeration system is arranged below the packing layer (11).

3. The integrated sewage treatment device according to claim 2, wherein the aeration system is a perforated gas distribution system, a perforated support plate is arranged at the bottom of the biological aerated filter (10), a circular perforated pipe is arranged on the perforated support plate, uniform aeration holes are formed in the surface of the perforated pipe, a bearing plate is arranged above the perforated support plate and at the bottom of the packing layer (11), and a plurality of small holes are uniformly formed in the bearing plate, and the diameter of each small hole is smaller than that of the filter material.

4. The integrated sewage treatment device according to claim 1, wherein the effluent of the biological aerated filter (10) passes through the static mixer (12) and then enters the ozone tank (13), the effluent is mixed with ozone in the static mixer (12) and then enters the ozone tank (13), and the static mixer (12) is provided with an ozone inlet connected with an ozone generator.

5. The integrated sewage treatment apparatus according to claim 1: the device is characterized by also comprising a backwashing device, wherein the backwashing device comprises a water suction pump (15), a backwashing pipeline (7-1), an air compressor (9) and a backwashing water-distributing and air-distributing pipe, one end of the backwashing pipeline (7-1) is connected with a clean water tank (14) through the water suction pump (15), the other end of the backwashing pipeline is connected with the backwashing water-distributing and air-distributing pipe, and the air compressor (9) is connected with the backwashing water-distributing and air-distributing pipe through a pipeline.

6. The integrated sewage treatment apparatus according to claim 5: the method is characterized in that backwashing water enters the air floatation tank (4) through a backwashing water return pipe (7-2).

7. The integrated sewage treatment apparatus according to claim 1: it is characterized in that the upper part of the air floatation tank (4) is provided with a slag scraper.

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