CN206767872U - A kind of Domestic sewage treatment device - Google Patents

Abstract

A domestic sewage processor, including a detachable filter element, a chemical sedimentation tank, a contact oxidation tank, and a membrane reaction area arranged in sequence along the sewage traveling route, wherein the detachable filter element has a stainless steel shell on the side, and the interior is sequentially from top to bottom. Coarse filter layer, fine filter layer and packing filter layer. There is a perforated roof above the chemical sedimentation tank. There is a sewage storage room above the detachable filter element. The bottom of the sewage storage room is a perforated bottom plate. On the top plate of the hole, the top is clamped under the bottom plate of the hole through a buckle. The chemical sedimentation tank is connected to one end of the water inlet pipe of the contact oxidation tank through the water outlet at the bottom, and the other end of the water inlet pipe is connected with the horizontally arranged open-hole water inlet pipe in the contact oxidation tank. , the contact oxidation tank communicates with the membrane reaction zone provided with the membrane module through the drainage pipe at the bottom. water resources.

Description

A domestic sewage processor

technical field

The utility model belongs to the technical field of sewage treatment, in particular to a household sewage processor.

Background technique

The improvement and innovation of sewage treatment equipment is the main direction of current social development and water pollution reduction. The development of sewage treatment technology in my country is relatively late, but it has been committed to the research of sewage treatment equipment. From the traditional sewage treatment technology to the current biological contact and membrane separation technology, significant progress has been made, and the sewage treatment capacity and effluent quality have been improved. At present, the biological contact oxidation tank technology in which the aeration pipe is placed under the filler is usually adopted in China, and the contact oxidation tank and membrane are the key technologies.

A lot of progress has been made in the research of the above-mentioned key technologies. However, the existing research on sewage treatment equipment is mostly concentrated in the field of large-scale professional sewage treatment, which is suitable for factories, workshops and other occasions. For small-scale sewage treatment for household use, there is still a lot of progress. There is no good application precedent.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a household sewage processor, which is small in size and light in weight, and can carry out sewage treatment step by step. The primary purification device can remove large and small particles, sediments and and organic phosphorus to realize the standardized discharge of sewage, while the contact oxidation tank and membrane reaction zone can carry out further efficient purification and realize the reuse of sewage, thereby reducing sewage discharge and saving water resources.

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

A household sewage processor, comprising a detachable filter element 1, a chemical sedimentation tank 2, a contact oxidation tank 3, and a membrane reaction zone 4 arranged sequentially along the sewage traveling route, wherein the detachable filter element 1 has a stainless steel shell on its side , inside from top to bottom are coarse filter layer 11, fine filter layer 12 and packing filter layer 13 successively, the top plate 14 with perforation is arranged on the top of described chemical sedimentation tank 2, there is sewage storage room 5 above detachable filter element 1, sewage The bottom of the storage chamber 5 is a perforated bottom plate 15, the bottom of the detachable filter element 1 is set on the perforated top plate 14, and the top is stuck under the perforated bottom plate 15 through a buckle 16, and the chemical sedimentation tank 2 passes through the water outlet 21 at the bottom One end of the water inlet pipe 31 connected to the contact oxidation tank 3, the other end of the water inlet pipe 31 communicates with the open-hole water inlet pipe 32 arranged horizontally in the contact oxidation tank 3, and the contact oxidation tank 3 connects with the drain pipe 33 at the bottom and is provided with a membrane The membrane reaction zone 4 of the module 41 communicates.

The coarse filter layer 11 is formed by layers of stainless steel plates with a number of small holes, with certain gaps between the layers, the fine filter layer 12 is a twill filter cloth, and the filler filter layer 13 is a fiber filler layer.

A packing layer 22 is arranged at the bottom of the chemical precipitation tank 2 , and the water outlet 21 is arranged below the packing layer 22 .

The upper part of the chemical sedimentation tank 2 is provided with a suction port 23, and the suction port 23 is connected with a suction pump 25.

An overflow tank 24 is arranged in the middle of the chemical precipitation tank 2 .

In the contact oxidation tank 3 , the aeration pipe 34 is arranged below the filler, the aeration pipe 34 is connected to the air blower 35 and a rotameter one 36 is arranged on the connecting pipeline, and the drain pipe 33 is arranged below the aeration pipe 34 .

The bottom of the contact oxidation tank 3 is provided with a sludge outlet 37, and the drainage pipe 33 is connected to the membrane reaction zone 4 through the top of the contact oxidation tank 3, wherein the drain pipe 33 is connected to the part above the contact oxidation tank 3. There is a downward water distribution pipe 38, and the water distribution pipe 38 faces the contact oxidation tank 3. After the water distribution pipe 38 on the drain pipe 33, a water pump one 39 and a rotameter two 310 are arranged.

The drainage pipe 33 is connected to the membrane reaction zone 4 from above, and the membrane module 41 is a double-ended water outlet membrane module, that is, its water collecting pipe 411 is connected with two water outlets 412, and the two water outlets 412 are connected with The outlet pipeline 42 of water pump two 43 is connected.

The two water outlets 412 are located at the top of the membrane module 41 .

The detachable filter element 1 and the chemical precipitation tank 2 are integrated in one housing, the contact oxidation tank 3 and the membrane reaction zone 4 are integrated in another housing with a heating device, and the two housings are arranged horizontally. share a side wall.

Compared with the prior art, the beneficial effects of the utility model are:

(1) It can greatly reduce the content of BOD and COD in sewage, with a removal rate of over 90%, improving the degradation efficiency of refractory organic matter;

(2) The use of membrane separation technology can have a greater interception effect on viruses and bacteria in sewage;

(3) The removal efficiency of nitrogen and phosphorus in sewage can reach more than 80%;

(4) The equipment can be carried out in sections, and the sewage treated by the primary part can be discharged directly, which fully meets the national discharge standards and will not cause water pollution, and the sewage treated by a complete set of equipment can achieve the purpose of reuse.

(5) The equipment meets the requirements of different households for sewage treatment. If the sewage treatment can meet the discharge requirements, the primary part of the equipment can be purchased. If the treated sewage is reused, a complete set can be purchased. equipment;

(6) The equipment occupies a small area, low operating cost and simple operation.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic design diagram of the detachable filter element of the present invention.

Fig. 3 is a schematic diagram of the design of the primary purification device of the present invention.

Fig. 4 is a top view of the primary purification device diagram of the utility model.

Fig. 5 is a schematic diagram of the design of the contact oxidation tank and the membrane reaction zone of the present invention.

Fig. 6 is a schematic design diagram of the membrane module in the membrane reaction zone of the present invention.

detailed description

The implementation of the utility model will be described in detail below in conjunction with the accompanying drawings and examples.

As shown in Figure 1, the utility model is a household sewage processor, which mainly includes a detachable filter element 1, a chemical sedimentation tank 2, a contact oxidation tank 3 and a membrane reaction zone 4 arranged sequentially along the sewage traveling route, wherein, The detachable filter element 1 and the chemical sedimentation tank 2 are integrated in a housing to form a primary purification device. The contact oxidation tank 3 and the membrane reaction zone 4 are integrated in another housing with a heating device. The two housings are arranged horizontally and share a side wall.

As shown in Fig. 2, Fig. 3 and Fig. 4, the side of the detachable filter element 1 has a stainless steel shell, and the inside is a coarse filter layer 11, a fine filter layer 12 and a packing filter layer 13 from top to bottom, and the coarse filter layer 11 consists of Stainless steel plates with a number of small holes are arranged in layers, and there are certain gaps between the layers. The fine filter layer 12 is a twill filter cloth, which has moderate performance, strong friction resistance, and fast filtration speed. Compared with other filter cloths There are more prominent advantages. The filler filter layer 13 is a fiber filler layer, which is light in weight, high in strength, small in filtration resistance, fast in filtration speed, small in filler area, and large in interception capacity. Compared with traditional quartz sand fillers, it can better meet the needs of household use.

A perforated top plate 14 is arranged above the chemical sedimentation tank 2, and a sewage storage chamber 5 is arranged above the detachable filter element 1. The bottom of the sewage storage chamber 5 is a perforated bottom plate 15, and the bottom of the detachable filter element 1 is arranged on the perforated top plate 14. The top is stuck under the bottom plate 15 through the buckle 16. The bottom of the chemical sedimentation tank 2 is provided with a packing layer 22. The material of the packing layer 22 is activated carbon and slag, which can remove organic matter and precipitate sewage, and the slag contains many alkaline oxides. After hydrolysis, the sewage becomes alkaline, which is more conducive to the removal of organic phosphorus. The water outlet 21 of the chemical sedimentation tank 2 is arranged at the filler layer 22, the upper part of the chemical sedimentation tank 2 is provided with an air suction port 23, and the air suction port 23 is connected with an air suction pump 25 to ensure the pressure in the space, and the middle part of the chemical sedimentation tank 2 is provided with a The overflow tank 24 , the sewage first drips into the overflow tank 24 after passing through the detachable filter element 1 , and then enters the packing layer 22 through the overflow tank 24 by way of overflow.

As shown in Figures 5 and 6, in the contact oxidation tank 3, the aeration pipe 34 is arranged below the filler, which not only supplies sufficient oxygen, but also stirs the biofilm, which can accelerate the renewal of the biofilm and improve the activity of the biofilm. Oxidize and decompose more organic matter in sewage. The aeration pipe 34 is connected to the air blower 35 and a rotameter 1 36 is arranged on the connection pipe, and the drain pipe 33 is arranged below the aeration pipe 34 . The bottom of the contact oxidation tank 3 is provided with a mud outlet 37, and the drainage pipe 33 is connected to the membrane reaction zone 4 through the top of the contact oxidation tank 3, wherein, the part of the drainage pipe 33 above the contact oxidation tank 3 is connected with a The water distribution pipe 38 faces the contact oxidation tank 3 , and the drain pipe 33 is provided with a water pump 1 39 and a rotameter 2 310 after the water distribution pipe 38 .

The water outlet 21 of the sedimentation tank 2 is connected to one end of the water inlet pipe 31 of the contact oxidation tank 3, and the other end of the water inlet pipe 31 communicates with the open-hole water inlet pipe 32 arranged horizontally in the contact oxidation tank 3, and the contact oxidation tank 3 passes through the drain pipe at the bottom 33 communicates with the membrane reaction zone 4 provided with the membrane module 41.

Among them, the drainage pipe 33 is connected to the membrane reaction zone 4 from above, and the membrane module 41 is a double-ended water outlet membrane module, which has a large retention capacity and fast water production. That is, its water collecting pipe 411 is connected with two water outlets 412, and the two water outlets 412 are located at the top of the membrane module 41, and the two water outlets 412 are connected with the water outlet pipeline 42 with the water pump 2 43.

The membrane module 41 adopts a hollow fiber ultrafiltration membrane synthesized by polyvinyl chloride and polypropylene, and the ultrafiltration membrane can effectively retain bacteria and viruses and other organic substances with smaller particle sizes. Although polyvinylidene fluoride and polyethersulfone have higher interception and filterability, they are more expensive and difficult to synthesize. The reason for choosing polyvinylidene fluoride and polypropylene is that they are cheap, easy to synthesize, and have good performance.

With the above structure, its working process and principle are as follows:

(1) Household sewage enters the sewage storage chamber 5 from the sewage inlet 6 at the top of the sewage storage chamber 5, and enters the detachable filter element 1 after being stored in the sewage storage chamber 5 for a short period of time to perform preliminary filtration of the sewage.

(2) The sewage treated in step (1) enters the chemical sedimentation tank 2, where the sewage is precipitated to play the role of precipitating pigments and clarifying sewage.

(3) The sewage treated in step (2) is transferred to the contact oxidation tank 3, and the sewage is fully contacted with air in the contact oxidation tank 3 to oxidize and decompose the organic matter.

(4) The sewage treated in step (3) is transferred to the membrane reaction zone 4, and membrane separation technology is used to effectively intercept the residual pollutants in the sewage to achieve the purpose of sewage reuse.

To sum up, the primary purification device of the utility model can meet the requirements of sewage discharge standards, and the complete set of equipment can effectively remove COD and organic nitrogen in domestic sewage, and can achieve the purpose of recycling sewage after treatment.

Claims (10)

1. a domestic sewage treatment device, is characterized in that, comprises the detachable filter core (1), chemical sedimentation tank (2), contact oxidation tank (3) and membrane reaction zone (4) that are arranged successively along the sewage traveling route, Wherein, the side of the detachable filter element (1) is provided with a stainless steel shell, and the interior is followed by a coarse filter layer (11), a fine filter layer (12) and a packing filter layer (13) from top to bottom, and the chemical sedimentation tank (2) The top is provided with a perforated top plate (14), a sewage storage chamber (5) is arranged above the detachable filter element (1), and the bottom of the sewage storage chamber (5) is a perforated bottom plate (15), and the detachable filter element ( 1) The bottom is set on the perforated top plate (14), and the top is clamped under the perforated bottom plate (15) through buckles (16), and the chemical sedimentation tank (2) is connected to the contact oxidation tank through the water outlet (21) at the bottom One end of the water inlet pipe (31) of (3), the other end of the water inlet pipe (31) communicates with the perforated water inlet pipe (32) arranged horizontally in the contact oxidation tank (3), and the said contact oxidation tank (3) passes through the bottom The drainage pipe (33) communicates with the membrane reaction zone (4) provided with the membrane module (41). 2. according to the described domestic sewage processor of claim 1, it is characterized in that, described coarse filter layer (11) is formed by layering the stainless steel plate that opens some apertures, leaves certain space between the layers, and described fine filter layer The filter layer (12) is a twill filter cloth, and the filler filter layer (13) is a fiber filler layer. 3. The household sewage processor according to claim 1, characterized in that a packing layer (22) is arranged at the bottom of the chemical sedimentation tank (2), and the water outlet (21) is arranged on the packing layer (22). 4. The household sewage processor according to claim 1, characterized in that, the upper part of the chemical sedimentation tank (2) is provided with an air suction port (23), and the air suction port (23) is connected with an air suction pump (25). 5. The household sewage processor according to claim 1, characterized in that an overflow tank (24) is arranged in the middle of the chemical sedimentation tank (2). 6. The household sewage processor according to claim 1, characterized in that, in the contact oxidation tank (3), the aeration pipe (34) is arranged below the filler, and the aeration pipe (34) is connected to the air blower (35 ) and the connecting pipeline is provided with a rotameter one (36), and the drain pipe (33) is arranged below the aeration pipe (34). 7. according to the described domestic sewage processor of claim 1, it is characterized in that, the bottom of described contact oxidation pond (3) is provided with mud outlet (37), and described drainage pipe (33) is from contact oxidation pond (3) The top of the drainpipe (33) is connected with a downward water distribution pipe (38) at the part above the contact oxidation tank (3), and the water distribution pipe (38) faces the contact oxidation tank (3), a water pump one (39) and a rotameter two (310) are arranged behind the water distribution pipe (38) on the drain pipe (33). 8. The household sewage processor according to claim 1, characterized in that, the drainage pipe (33) is connected to the membrane reaction zone (4) from above, and the membrane module (41) is a double-ended water outlet membrane module, that is, , its water collecting pipe (411) is connected with two water outlets (412), and two water outlets (412) are all connected with the water outlet pipeline (42) that has water pump two (43). 9. The domestic sewage processor according to claim 8, characterized in that, the two water outlets (412) are both located on the top of the membrane module (41). 10. The household sewage processor according to claim 1, characterized in that, the detachable filter element (1) and the chemical sedimentation tank (2) are integrated in a housing, and the contact oxidation tank (3) and the membrane The reaction zone (4) is integrated in another housing with a heating device, and the two housings are arranged horizontally and share a side wall.