CN202492441U - Novel hydraulic enhanced biological septic tank - Google Patents

Abstract

The utility model relates to the technical field of biological treatment of rural domestic sewage and the utilization of sewage resources, in particular to a novel water pressure enhanced biological septic tank. It is characterized by a three-format septic tank, two feed ports and a water outlet well. The solid manure enters the first septic tank (6) from the solid manure feed port (1) for fermentation, and the generated biogas is collected in the gas storage chamber (17) and used by residents through the gas pipeline (5). The liquid ight soil feed port (2) enters the second compartment septic tank (7). Fixed soft packing (10) is provided in the third compartment septic tank (8). An elbow water outlet (13) is provided in the water outlet well (9), and the water outlet (13) is also an overflow simultaneously, which can improve the safety factor. The utility model is a novel water pressure reinforced biological septic tank with reasonable structure, good gas production effect, no gas leakage, high safety factor, low concentration of effluent suspended matter, high evolution efficiency and low investment cost.

Description

A new type of water pressure enhanced biological septic tank

technical field

The utility model relates to the technical field of biological treatment of rural domestic sewage and the utilization of sewage resources, in particular to a novel hydraulic-type reinforced biological septic tank. the

Background technique

In recent years, my country's sewage treatment plants have been continuously built, but they are mainly concentrated in cities, and the sewage in most rural areas of the country cannot be treated. At present, there are two main ways to treat rural domestic sewage: one is to incorporate domestic sewage into the municipal pipe network; the other is to establish on-site sewage treatment facilities. In densely populated urban areas, it is undoubtedly the right choice to increase the collection coverage of the pipe network and enhance the centralized sewage treatment capacity. However, in the outer suburbs of the city, the centralized pipe network cannot be reached. Even if it can be extended with the main road, the connection fee and long-distance sewage pumping station The transportation and operation costs are very high, and the unit sewage treatment cost is also greatly increased. Therefore, the scattered sewage in rural areas should be treated locally. Septic tanks are widely used as a simple, energy-free on-site sewage treatment facility, among which three-format septic tanks are the most widely used. the

Because part of the currently designed septic tank is not sealed, biogas cannot be collected; although the other part is sealed, the pressure of the generated biogas is unstable, which may easily cause an explosion. In addition, when fecal sewage and domestic sewage are combined and discharged into the septic tank, on the one hand, it is easy to short-flow, and on the other hand, the C/N ratio is reduced, which affects the production of biogas. The concentration of suspended solids in septic tank effluent is high, and the loss of a large number of microorganisms is also an urgent problem to be solved. the

Contents of the invention

The purpose of this utility model is to provide a new hydraulic type reinforced biological septic tank aiming at the above-mentioned shortcomings and deficiencies existing in the prior art. the

The technical scheme that the utility model takes for solving its purpose:

The utility model relates to a new hydraulic enhanced biological septic tank, which is composed of a spherical tank body, two feeding ports and a water outlet well. In the spherical tank is a three-format septic tank; the wellhead is made on the vault, and a double-layer movable manhole cover is installed on the wellhead to ensure airtightness, and it is convenient to enter and exit any one of the three compartments during maintenance; the top The air is used as a gas storage room, and a gas transmission pipeline is set up to recycle biogas and turn waste into treasure. There are 2 feeding ports, which are solid manure feeding port and liquid manure feeding port respectively. The solid manure feed port is connected to the first septic tank, and the liquid manure feed port is connected to the second septic tank. Solid-liquid separation, increase the C/N ratio of the first septic tank, and increase biogas production. The fixed soft filler is hung in the third septic tank, which greatly increases the concentration of microorganisms in the tank and the area and time in contact with pollutants. At the same time, it also has the effect of uniform water distribution, avoiding short flow, and It has a good interception effect on suspended solids, reduces the loss of microorganisms, and improves the quality of effluent water. The outlet well is connected to the third septic tank, and the outlet well is equipped with an elbow outlet to ensure that the entire system is in a water-sealed state, ensuring that the generated biogas can only enter the gas storage chamber upwards, and the outlet is also an overflow port. When the biogas inside the system gradually increases, the pressure of the gas storage chamber increases, and the three-format septic tank liquid is respectively pressed to the feed inlet and the water outlet well to achieve internal and external pressure balance. When the user uses biogas, the pressure in the pool decreases, the liquid level of the feed inlet and the outlet well decreases, and the liquid returns to the pool to maintain a new balance. Generally speaking, when gas is produced and used, the fermentation liquid level in the water pressure tank and the tank rises and falls alternately, and a certain pressure is generated, which can ensure the pressure requirements of biogas transportation and combustion. However, when the biogas is excessively produced, the huge pressure is a great potential safety hazard, and the liquid will overflow out of the feeding port at the same time, seriously affecting the sanitation of the environment. Therefore, an overflow port is provided in the utility model.

The advantages of the utility model mainly include:

1. The utility model adopts the method of splitting solid-liquid feces to feed materials, which increases the C/N ratio of the first septic tank and improves the yield of biogas; at the same time, it reduces the C/N ratio of the second septic tank, Conducive to the enrichment of anammox bacteria, can play a certain denitrification effect.

2. The utility model adopts the hydraulic septic tank design, which not only has a good water sealing effect on the septic tank, but also can balance the release pressure of the biogas, and has a high safety factor. the

3. The third septic tank of the utility model is equipped with suspended fillers, which has a large specific surface area, high microbial biomass per unit volume, can distribute water evenly, avoid short-flow phenomenon, and have a good interception effect on suspended matter , reducing the loss of microorganisms and improving the quality of effluent water. the

4. The utility model enhances the purification effect, and the effective utilization rate of the pool volume is high. the

5. The utility model is buried underground, does not affect any facilities on the ground, has good thermal insulation, is not affected by seasons, and has stable microbial metabolism. the

6. The utility model has good sealing performance, no odor, no breeding of mosquitoes and flies, and no noise. the

7. The utility model has no energy-consuming equipment, and saves investment and operation costs. the

In a word, the utility model is a new type of water pressure enhanced biological septic tank with reasonable structure, good gas production effect, no air leakage, high safety factor, low concentration of effluent suspended solids, high evolution efficiency and low investment cost. the

Description of drawings

Fig. 1 is a schematic view of the structure of a new hydraulic type reinforced biological septic tank of the utility model - a plan view. the

Fig. 2 is a schematic diagram of the structure of a novel hydraulic type reinforced biological septic tank of the utility model - 1-1 sectional view. the

Fig. 3 is a schematic view of the structure of a novel hydraulic type reinforced biological septic tank of the utility model - 2-2 sectional view. the

In the picture:

1. Solid feces feeding port

2. Liquid feces feeding port

3. The first double-layer locking manhole cover

4. The second double-layer locking manhole cover

5. Gas pipeline

6. The first septic tank

7. The second septic tank

8. The third septic tank

9. Out of the well

10. Soft filler

11. The first water outlet

12. The second water outlet

13. Water outlet

14. The first inclined entrance

15. The second inclined entrance

16. The 3rd inclined entrance

17. Gas storage chamber.

Detailed ways

The utility model is a new hydraulic type enhanced biological septic tank. Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the treatment device mainly includes a solid feces feeding port (1) and a liquid feces feeding port (2) , Tri-format septic tanks (6, 7, 8), outlet wells (9), gas storage chambers (17), and gas pipelines (5). The solid feces of the utility model enter the first septic tank (6) from the solid feces feed port (1) for fermentation, and the generated biogas is collected in the gas storage chamber (17) and used by residents through the gas pipeline (5) . The liquid feces feeding port (2) enters the second septic tank (7), and the influent water with a low C/N ratio is conducive to the enrichment of anammox bacteria and denitrification. The first septic tank (6) and the second septic tank (7) are connected through the first water outlet (11), and the second septic tank (7) and the third septic tank (8) are connected through the first 2 water outlets (12) are connected. The third compartment septic tank (8) is provided with fixed soft packing (10), which is easy to form biofilm. The outlet well (9) is connected to the third septic tank (8), and the outlet well (9) is provided with an elbow outlet (13) to ensure that the entire system is in a water-sealed state, and the outlet (13) is also an overflow Orifice, improve the safety factor. The solid feces feed port (1), the liquid feces feed port (2), and the water outlet well (9) are respectively connected to the first, second, and third septic tanks, and the slopes are respectively 30° (14), 30° (16 ), 40° (15), which can reduce short flow and scaling, and enhance the mixing of sewage and sludge. the

Claims (5)

1. A novel hydraulic type strengthened biological septic tank is characterized in that said a kind of novel hydraulic type strengthened biological septic tank is made up of a spherical tank body, a feed inlet and an outlet well: (1) The spherical tank is an improved three-format septic tank (6, 7, 8); in its headspace is a gas storage room (17), and a gas pipeline (5) is set, and a There is a double-layer movable manhole cover (3) installed at the wellhead; (2) There are two feeding ports (1, 2), which are respectively solid feces feeding port (1) and liquid feces feeding port (2). 2. As claimed in claim 1, the solid feces feed port (1) is connected to the first septic tank (6) through the solid feed pipe (14), and the vertical clamp between the solid feed pipe (14) and the spherical tank The angle is 30o. 3. As claimed in claim 1, the liquid feces feed port (2) is connected to the second septic tank (7) through the liquid feed pipe (16), and the vertical clamp between the liquid feed pipe (16) and the spherical tank The angle is 30o. 4. A fixed soft filler (10) is hung in the third septic tank (8) of the three-format septic tank (6, 7, 8) according to claim 1. 5. As claimed in claim 1, the outlet well (9) is connected to the third septic tank (8) through the outlet pipe (15), the vertical angle between the outlet pipe (15) and the spherical tank is 40o, and the outlet well (9) An elbow type water outlet (13) is provided, and the water outlet (13) is also an overflow port simultaneously.

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