CN219098913U

CN219098913U - Three-pond septic sewage treatment device

Info

Publication number: CN219098913U
Application number: CN202222732251.1U
Authority: CN
Inventors: 徐洪根
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-05-30
Anticipated expiration: 2032-10-18

Abstract

The utility model relates to a three-pond septic sewage treatment device, and belongs to the technical field of environmental protection equipment. The device is divided into three tanks by two walls, and the three tanks are an anaerobic fermentation tank, a medicine filtering tank and a water purifying tank in sequence. The method is characterized in that: the anaerobic fermentation tank and the partition wall of the medicine filtering tank are provided with three-way filtering devices, one end of each three-way filtering device, which is positioned in the medicine filtering tank, is communicated with a medicine storage pipe, and a medicine feeding port at the upper end of the medicine storage pipe is arranged outside the top of the medicine filtering tank. A partition wall is arranged in the middle of the medicine filtering tank, the medicine filtering tank is divided into two chambers, and a detachable filtering device is arranged on the partition wall. The utility model has the beneficial effects that: through setting up anaerobic fermentation sediment, net filtration and medicine decomposition dilution structure, carry out multiple purification treatment to sewage excrement and urine, effectively shorten sewage treatment time, reduce the COD value of sewage, make the play water accord with environmental protection standard, can reuse towards the lavatory. The device can be modified on the traditional three-tank septic tank, is also suitable for industrial sewage treatment, and has simple structure and convenient construction.

Description

Three-pond septic sewage treatment device

Technical Field

The utility model relates to the technical field of environmental protection equipment, in particular to a three-pond septic treatment device.

Background

In the prior art, a septic tank is equipment for treating fecal sewage. A three-cell septic tank is generally composed of three cell sealed septic tanks (see fig. 1) with two manure pipes connected. The excrement from the toilet is trapped and deposited by the first tank for anaerobic fermentation, and the second tank for further anaerobic fermentation, so that bacteria, viruses and parasitic ova in the excrement lose survival conditions and die, and the excrement water flowing into the third tank is decomposed into harmless manure for farmland irrigation. The method for treating the organisms which kill pathogenic bacteria, viruses and parasitic ova in the excrement through sealing, anaerobic and natural fermentation is simple in structure and low in cost, and is widely applied to rural mess correction.

However, this septic tank relying solely on natural sedimentation anaerobic fermentation has the limitations that:

(1) The natural anaerobic fermentation is performed, long-time fermentation precipitation is needed to sterilize and egg-killing, the period is long, and the efficiency is low.

(2) The structure and the treatment mode of precipitation fermentation have good effect on black water (suspended organic matters such as excrement, paper scraps, protozoa and the like in water), but have poor treatment effect on grey water (daily sewage), so that the treated tail water is difficult to reach the national sewage discharge standard and cannot be reused.

(3) At present, most of the rural area uses fertilizer to replace manure, so that manure in a manure pit has no way to go out, and the manure is accumulated in daily life, so that the manure and sewage overflow to influence the environment.

Therefore, the three-grid septic tank is necessary to be modified, and the structure and the treatment mode of the septic tank are optimized so as to adapt to living requirements and environmental sanitation standards of different development in various places and improve rural environmental quality.

Chinese patent No. CN201264959Y discloses a septic tank with solid-liquid separation filter, a coarse filter is arranged in the first lattice, a fine filter is arranged in the middle of the second lattice, a three-way filter is arranged between the second lattice and the third lattice, and multiple times of filtration and precipitation are used to improve the solid-liquid separation degree, reduce the water content of the manure in the tank, prolong the cleaning period and improve the sewage discharge standard.

Although the prior art has a certain effect, the sewage and the excrement are treated only from the physical aspect, the means are single, the purification is incomplete, the COD improvement of the discharged water is limited, and the filtering device is arranged on the first grid, occupies the excrement storage space and reduces the excrement storage capacity.

Disclosure of Invention

Aiming at the problems and the defects of the prior art, the utility model provides the septic sewage treatment device which has effluent meeting the environmental sanitation emission standard, is simple to construct, can be transformed on the basis of the original three-grid septic tank and keeps the feces storage space unchanged. The specific technical scheme is as follows:

the three-pond septic sewage treatment device is characterized in that two walls are divided into three ponds, wherein the three ponds are an anaerobic fermentation pond, a medicine filtering pond and a water purifying pond in sequence, a first separation wall and a second separation wall are respectively arranged between the three ponds, and an inspection port I1A, an inspection port II 2A and an inspection port III 3A are respectively arranged at the top of the three ponds; the anaerobic fermentation tank is provided with a sewage inlet pipe, the water purifying tank is provided with a water outlet pipe, and three communicated three-way pipelines are respectively arranged between the three tanks; the method is characterized in that: the three-way pipeline for the anaerobic fermentation tank and the medicine filtering tank to be communicated with each other is a three-way coarse filtering device, one end of the three-way coarse filtering device, which is positioned in the medicine filtering tank, is communicated with a medicine storage pipe, a medicine feeding port at the upper end of the medicine storage pipe is arranged outside the top of the medicine filtering tank, and a sealing cover is arranged at the medicine feeding port; the three-way pipeline communicated with the medicine filtering tank and the water purifying tank is a three-way fine filtering device.

The three-way coarse filter device is positioned on the pipe wall at one side of the anaerobic fermentation tank and the upper end surface and the lower end surface of the three-way coarse filter device are provided with coarse meshes for filtering dirt; .

The wall and the lower end face of the medicine storage tube are provided with meshes for releasing medicines.

The three-way fine filtering device is positioned on the pipe wall at one side of the medicine filtering tank and the lower end surface of the three-way fine filtering device, and meshes for filtering fine dirt are distributed on the three-way fine filtering device.

The second edge of the flow-through opening of the three-way fine filtering device is lower than the first 61' edge of the flow-through opening of the three-way coarse filtering device and higher than the third edge of the flow-through opening of the water outlet pipe.

A partition wall is arranged in the middle of the medicine filtering tank, and the partition wall partitions the medicine filtering tank into a first chamber and a second chamber.

The partition wall is provided with a detachable filter device, and the detachable filter device is provided with a sewage isolation sponge filter pumping plate.

The three-way fine filtering device communicated with the medicine filtering tank and the water purifying tank is arranged in the second chamber.

And a plurality of exhaust holes communicated with the three tanks are respectively arranged at the top ends of the partition walls of the second chamber of the medicine filtering tank, the anaerobic fermentation tank and the water purifying tank.

The three inspection ports are provided with sealing covers, wherein the first inspection port 1A is positioned above the mutually communicated filtering devices; and the second inspection port 2A is positioned right above the detachable filter device, and the diameter of the second inspection port is larger than the width of the dirt separation sponge filter pumping plate.

The anaerobic fermentation tank is provided with a manure suction pipe, and the manure suction pipe is made of a cast iron pipe, a rubber pipe or a PVC pipe.

The medicine in the medicine storage tube is a pill or a dripping bag, and is a precipitator, a deodorant, a clarifier and/or a coagulant.

Compared with the prior art, the utility model has the advantages that: the septic tank device is improved on the basis of the three-grid septic tank widely popularized in rural areas at present, the construction cost is low, the tedious repeated construction is avoided, and the septic tank device has the beneficial effects that:

(1) The biological sterilization and disinsection, physical filtration and chemical deodorization and decontamination treatment structure is adopted, so that the treatment capacity of sewage and faeces is improved, the decontamination speed is accelerated, the effluent quality meets the environmental emission standard, the water can be recycled for flushing a toilet, the virtuous cycle is realized, and the management cost is reduced.

Toilet feces, biological, physical and chemical treatment, water purification and irrigation

↖ flushing with water is carried out in a manner of "C" and "C" as well as "C" and "C" are used.

(2) The second chamber of the medicine filtering tank is provided with an exhaust hole, so that methane (the trapped COD is converted into methane) can be effectively dissipated, and potential safety hazards are eliminated.

(3) The filtering treatment device can be modified on the basis of the original three-tank septic tank, so that the cost is saved due to easy placement, and the construction amount is small; the structure and the treatment means are suitable for fecal treatment and also suitable for daily sewage treatment, including treatment of newly-built or industrial chemical sewage of harmless three-tank septic tanks.

(4) The improved three-tank septic tank is characterized in that the filtering treatment device is mainly concentrated in a drug filtering tank, the capacity of the anaerobic fermentation tank and the capacity of the water purifying tank are not affected, the maximum collection amount of the septic tank and the water outlet tank are ensured, and the period of cleaning and washing the sewage and the excrement is effectively prolonged.

Drawings

Fig. 1: the traditional three-tank septic tank is schematically constructed.

Fig. 2: the three-way coarse filter device 61, the medicine storage tube 7, the three-way fine filter device 62 and the detachable filter device 63 in the septic tank are structurally and partially schematic.

Fig. 3: the three-way coarse filter device 61, the medicine storage tube 7, the three-way fine filter device 62 and the detachable filter device 63 in the septic tank are structurally and partially schematic in plan view.

Fig. 4: the three-tank two-chamber top view schematic diagram of the utility model.

Fig. 5: the detachable filter 63 in the septic tank of the utility model is schematically shown.

Detailed Description

The conception, specific structure, and technical effects of the present utility model will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present utility model.

As shown in fig. 3-5, a three-pond septic sewage treatment device is formed by dividing two walls into three ponds, namely an anaerobic fermentation pond 1, a medicine filtering pond 2 and a water purifying pond 3 in sequence, wherein a first dividing wall (1B) and a second dividing wall (2B) are respectively arranged between the three ponds, and the top of the three ponds is respectively provided with a first inspection port 1A, a second inspection port 2A and a third inspection port 3A; the anaerobic fermentation tank 1 is provided with a sewage inlet pipe 4, and the water purifying tank is provided with a water outlet pipe 5.

The anaerobic fermentation tank 1 and the medicine filtering tank 2 are communicated with each other by adopting a three-way coarse filtering device 61, and one end of the three-way coarse filtering device 61, which is positioned in the medicine filtering tank 2, is communicated with a medicine storage pipe 7; the upper end of the medicine storage tube 7 is provided with a medicine feeding port outside the top of the medicine filtering tank 2, and the medicine feeding port is provided with a sealing cover. Thus, under the actions of anaerobic fermentation, physical filtration and drug decomposition and precipitation, the sewage purification treatment progress is accelerated; meanwhile, the medicine storage tube (administration tube) is directly communicated with the three-way coarse filter device 61, so that sewage and dirt entering the pond can be ensured to be in contact with medicines, the medicines can fully and permanently play a role, and the purifying effect is improved.

The three-way coarse filter device 61 is arranged on the pipe wall at one side of the anaerobic fermentation tank 1 and the upper end surface and the lower end surface of the pipe wall, meshes for filtering dirt are distributed, and the size of the meshes can not only block the dirt in the anaerobic fermentation tank 1, but also is not easy to be blocked by the dirt; meanwhile, the liquid can smoothly flow into the medicine filter tank 2, and the functions of solid-liquid diversion and dirt decomposition are achieved.

The wall of the medicine storage tube 7 and the lower end surface thereof are provided with meshes for releasing medicine so as to slowly release the medicine in the tube into the pool; and the degradation, differentiation, filtration and precipitation of organic matters in the sewage are quickened while anaerobic fermentation is carried out, so that the water quality reaches the environmental protection standard.

The three-way fine filtering device 62 is communicated with the medicine filtering tank 2 and the water purifying tank 3, the three-way fine filtering device 62 is arranged in the second chamber 22, and the pipe wall and the upper end surface and the lower end surface of the three-way fine filtering device positioned at one side of the medicine filtering tank 2 are provided with meshes for filtering fine dirt so as to further filter fine matters in the tank, so that the clean water completely accords with the environmental protection standard.

The sewage inlet pipe 4, the three-way coarse filter device 61, the three-way fine filter device 62 and the water outlet pipe 5 are horizontally and alternately distributed, so that the phenomenon that the sewage enters and exits in each pool to form short flow and the drug filtering and sedimentation effects are affected is avoided.

A partition wall 3B is arranged in the middle of the medicine filter tank 2, and the partition wall 3B partitions the medicine filter tank 2 into a first chamber 21 and a second chamber 22; the partition wall 3B is provided with a detachable filter device 63, and the detachable filter device 63 is provided with a sewage isolation sponge filter screen drawing plate for adsorbing bacteria and sewage so as to further improve the purification degree of water quality.

The second edge 62' of the flow-through opening of the three-way fine filtering device 62 is lower than the first edge 61' of the flow-through opening of the three-way coarse filtering device 61 and higher than the third edge 5' of the flow-through opening of the water outlet pipe 5; so as to ensure that the liquid does not flow backward and the effects of solid-liquid separation and anaerobic fermentation are affected.

As a preferred embodiment, when the horizontal installation position of the three-way coarse filtration device 61 is 1500mm away from the bottom of the tank, the second lower edge of the flow-through opening of the three-way fine filtration device 62 is 20-30 mm lower than the first lower edge of the flow-through opening of the three-way coarse filtration device 61, and is 20-30 mm higher than the third lower edge of the flow-through opening of the water outlet pipe 5.

The top ends of the partition walls of the second chamber 22, the anaerobic fermentation tank 1 and the clean water tank 3 are respectively provided with a plurality of exhaust holes I1B and exhaust holes II 2B'. Like this, in anaerobic fermentation tank 1 internal air pressure increase can be to the second room exhaust gas, and the indoor gas of second can't get into anaerobic fermentation tank 1 through the exhaust hole in, guarantee the anaerobic fermentation environment in the anaerobic fermentation tank 1 promptly, can avoid the too big pressure in the septic tank again, explode the dangerous emergence in storehouse.

The top of the three tanks is respectively provided with a first inspection port 1A, a second inspection port 2A and a third inspection port 3A, which are used for observing the conditions in the tanks, eliminating accidents and the like, and the three inspection ports are all provided with sealing covers.

The first inspection port 1A is positioned above the three-way coarse filter device 61, can be used for cleaning adhesion sundries on the filter device, avoids the filter device from being blocked and invalid, and can be used as an access port of an external manure suction pipe.

The second inspection port 2A is located right above the detachable filter device 63, and the diameter of the second inspection port 2A is larger than the width of the dirt-isolation sponge filter suction plate of the detachable filter device, so that the dirt-isolation sponge filter suction plate can be taken out for cleaning or replacement, and blockage failure is avoided. The sponge of the dirt-separating sponge filtering and pumping plate can be replaced by a metal filter screen.

The anaerobic fermentation tank 1 can be further provided with a fecal suction pipe 11 which penetrates into the bottom of the tank, so that on one hand, the feces in the tank can be prevented from being carried out after the external fecal suction pipe is used, and the environment is polluted; on the other hand, the waste water collecting device can prevent waste water in the pool and waste liquid at the middle and upper parts from being pumped away, and can influence the collection of sewage; meanwhile, the device can be used as a septic tank negative pressure pipe network collecting system and village-level (or regional) centralized treatment facilities, and creates good conditions for the treatment and resource utilization of the excrement.

The manure suction pipe 11 can be made of cast iron pipe, rubber pipe or PVC pipe.

The medicines in the medicine storage tube are pills or drip bags, and specific medicine types are selected and put according to different sewage and environmental protection standards, such as: precipitants, deodorants, clarifiers and/or coagulants.

The purification mechanism of the utility model:

(1) Firstly, mixed excrement and sewage with different densities enter an anaerobic fermentation tank 1 from a sewage inlet pipe to perform anaerobic fermentation sterilization and disinsection treatment. Because the walls of the tee joint pipe and the upper end face and the lower end face are provided with meshes, liquid and fine dirt flow into the medicine filtering tank 2, and dirt and floaters which are difficult to degrade are isolated in the anaerobic fermentation tank 1, thereby realizing the separation of solids and liquid.

(2) And secondly, the sewage flowing into the first chamber of the medicine filtering tank 2 is subjected to anaerobic fermentation again, and simultaneously contacts with the medicine released by the medicine storage pipe, and is subjected to oxidative decomposition/denitrification and dephosphorization/deodorization and disinfection, so that the sewage is quickly deposited at the bottom of the tank, and the water quality is purified.

(3) Then, the purified water flows to the second chamber, bacteria and residues are adsorbed under the action of the sponge filter screen on the partition wall, solid and liquid are separated again, and the purified water filtered by the front grid is further purified.

(4) Finally, after the clear water flowing into the second chamber of the medicine filter tank 2 is settled, the clear water slowly flows into the clear water tank 3 for sedimentation under the filtration of the meshes of the three-way fine filter device 62, and the clear water after the dirt is removed completely reaches the environmental protection standard after the repeated sedimentation, filtration and disinfection treatment, and is used for flushing toilets or farmland irrigation through a water outlet pipe.

(5) The sewage in the anaerobic fermentation tank 1 is subjected to sealed anaerobic fermentation for a long time to remove harmful bacteria and parasites, becomes manure and is deposited in the tank, and can be extracted and pulled away after the first grid is full, or is extracted and treated periodically.

Claims

1. A three-pond septic sewage treatment device is divided into three ponds by two walls, wherein the three ponds are an anaerobic fermentation pond (1), a medicine filtering pond (2) and a water purifying pond (3) in sequence; the anaerobic fermentation tank (1) is provided with a sewage inlet pipe (4), and the water purifying tank is provided with a water outlet pipe (5); a first partition wall (1B) and a second partition wall (2B) are respectively arranged between the three tanks, a first inspection port (1A), a second inspection port (2A) and a third inspection port (3A) are respectively arranged at the tops of the three tanks, and sealing covers are arranged at the three inspection ports; the method is characterized in that: the anaerobic fermentation tank (1) and a first partition wall (1B) of the medicine filtering tank (2) are provided with a three-way coarse filtering device (61), one end of the three-way coarse filtering device (61) positioned in the medicine filtering tank (2) is communicated with a medicine storage pipe (7), a medicine feeding port at the upper end of the medicine storage pipe (7) is arranged outside the top of the medicine filtering tank (2), and the medicine feeding port is provided with a sealing cover; the first inspection port (1A) is positioned above the three-way coarse filtration device (61).

2. The three-pond fecal sewage treatment device according to claim 1, wherein: the three-way coarse filter device (61) is positioned on the pipe wall and the upper and lower end surfaces of one side of the anaerobic fermentation tank (1) and is provided with meshes for filtering dirt; the wall and the lower end face of the medicine storage tube (7) are provided with meshes for releasing medicines.

3. The three-pond fecal sewage treatment device according to claim 1, wherein: a three-way fine filtering device (62) is arranged on a partition wall II (2B) between the medicine filtering tank (2) and the water purifying tank (3), the three-way fine filtering device (62) is positioned on one side of the medicine filtering tank (2), meshes for filtering fine dirt are distributed on the pipe wall and the upper end face and the lower end face of the three-way fine filtering device, and the inspection port III (3A) is positioned above the three-way fine filtering device (62).

4. A three-pond fecal sewage treatment device according to claim 3, wherein: the second passing port lower edge (62 ') of the three-way fine filtering device (62) is lower than the first passing port lower edge (61 ') of the three-way coarse filtering device (61), and is higher than the third passing port lower edge (5 ') of the water outlet pipe (5).

5. The three-pond fecal sewage treatment device according to claim 1, wherein: a partition wall (3B) is arranged in the middle of the medicine filtering tank (2), and the partition wall (3B) partitions the medicine filtering tank (2) into a first chamber (21) and a second chamber (22); a detachable filter device (63) is arranged on the partition wall (3B); a dirt isolation sponge filtering pumping plate is arranged on the detachable filtering device (63); the three-way coarse filter device (61) between the anaerobic fermentation tank (1) and the medicine filter tank (2) is arranged at the position of the first chamber (21), and the three-way fine filter device (62) between the medicine filter tank (2) and the water purifying tank (3) is arranged at the position of the second chamber (22).

6. The three-pond fecal sewage treatment device according to claim 5, wherein: the top end of a first partition wall (1B) between the anaerobic fermentation tank (1) and the second chamber (22) and the top end of a second partition wall (2B) between the second chamber (22) and the clean water tank (3) are respectively provided with a plurality of exhaust holes I (1B ') and II (2B') which are communicated with each other.

7. The three-pond fecal sewage treatment device according to any one of claims 5 to 6, characterized in that: and the second inspection port (2A) is positioned right above the detachable filter device (63), and the diameter of the second inspection port is larger than the width of the dirt separation sponge filter pumping plate.

8. The three-pond fecal sewage treatment device according to any one of claims 1 to 6, characterized in that: the anaerobic fermentation tank (1) is provided with a manure suction pipe (11).

9. The three-pond fecal sewage treatment device according to claim 8, wherein: the manure suction pipe is made of cast iron pipes, rubber pipes or PVC pipes.

10. The three-pond fecal sewage treatment device according to any one of claims 1 to 6, characterized in that: the medicine in the medicine storage tube is a pill or a dripping bag, and is a precipitator, a deodorant, a clarifier and/or a coagulant.