CN209161813U - A kind of biological reinforced type septic tank - Google Patents

Abstract

The utility model discloses a biologically enhanced septic tank, which belongs to the technical field of sewage treatment. The tank body of the septic tank is provided with two partition boards. The partition board divides the cavity of the tank body into a first-level strengthening tank, a second-level strengthening tank and a treatment tank. The water inlet pipe extends into the first-level strengthening tank, and the water inlet pipe There is a filter device at one end inside the first-level strengthening pool, a first stuffing box is arranged in the first-level strengthening pool, an exhaust pipe is arranged on the top of the first-level strengthening pool, and a first filling box is arranged between the first-level strengthening pool and the second-level strengthening pool. A circulating flooding device, a second stuffing box is arranged in the secondary strengthening tank, a second circulating flooding device is arranged between the secondary strengthening tank and the treatment tank, and the outlet pipe is connected to the treatment tank; the first stuffing box and the second stuffing box Contains biological fillers. The utility model has the advantages of high processing load, good effect, stable and reliable operation of the device, and economical rationality.

Description

A bio-enhanced septic tank

technical field

The utility model belongs to the technical field of sewage treatment, and more particularly relates to a biologically enhanced septic tank.

Background technique

With the continuous acceleration of urbanization in my country and the continuous improvement of people's living standards, the amount of toilet sewage is also increasing. However, toilet sewage belongs to decentralized sewage and cannot be treated in a centralized manner like urban sewage, which makes the problem of decentralized sewage treatment the focus of attention. How to effectively, economically and stably treat decentralized sewage has become one of the difficulties for environmental protection workers.

The septic tank is a device for treating feces and filtering and sedimenting. The principle is that the solidified material is decomposed by anaerobic fermentation at the bottom of the tank, and the upper hydrate flows away through the liquid outlet pipe. Septic tanks can ensure the environmental sanitation of the community and can also pretreat sewage. Using the principle of precipitation and anaerobic fermentation, the feces discharged from the sewer are collected and processed. The solid substances in the feces are decomposed by anaerobic fermentation, and then sink to the bottom. After flowing out from the upper outlet of the septic tank, it is used as greening water to irrigate plants, which greatly reduces the pollution of rivers, lakes and rivers caused by excrement. The Chinese patent 201510045721.9 published on May 6, 2015 discloses a septic tank, including a septic tank body, and a plurality of partition plates are arranged in the middle of the septic tank body, and the partition plates separate the septic tank body. It is divided into a plurality of working chambers, and the separation plate is provided with penetrating filter holes. Each adjacent working chamber is kept connected through the filter holes on the separation plate, and the feeding chamber is provided with a microbial decomposition device connected to the feeding pipe. The auxiliary device is provided with a filter device connected with the liquid outlet pipe in the liquid outlet cavity; a plurality of biological suspension balls are filled in the filter barrel of the decomposition auxiliary device. The above-mentioned patents provide solutions to some problems, but the feeding pipe and the discharging pipe are linear, and the heat preservation effect is poor. If obstacles are encountered during the installation process, they cannot be avoided smoothly. Only by changing the pipes It can be realized by the position of the partition board, and the filter screen on the partition plate is blocked, which is very inconvenient to clean.

SUMMARY OF THE INVENTION

Purpose of the invention: In view of the above problems existing in the prior art, the purpose of this utility model is to provide a bio-enhanced septic tank with high treatment load, good treatment effect, stable effluent quality, long service life and high system stability.

Technical scheme: in order to solve the above-mentioned problems, the technical scheme adopted by the present utility model is as follows:

A bio-enhanced septic tank includes a tank body with a cavity, and water inlet pipes and water outlet pipes arranged at both ends of the tank body. It is divided into a first-level strengthening tank, a second-level strengthening tank and a treatment tank, the water inlet pipe extends into the first-level strengthening tank, and one end of the water inlet pipe located inside the first-level strengthening tank is provided with a filter device, and the A first stuffing box is arranged in the first-level strengthening tank, an exhaust pipe is arranged on the top of the first-level strengthening tank, and a first circulating flooding device is arranged between the first-level strengthening tank and the second-level strengthening tank. A second stuffing box is arranged in the secondary intensification tank, a second circulating flooding device is arranged between the secondary intensification tank and the treatment tank, and the water outlet pipe is connected with the treatment tank; the first stuffing box and Biological fillers are arranged in the second stuffing box.

The position of the first stuffing box is 0.1-0.4 meters higher than the second stuffing box.

It also includes three manholes, and the manholes are respectively arranged on the top of the first-level strengthening pool, the second-level strengthening pool and the treatment pool.

The filter device is a filter screen with a pore size of 8mm.

The biological filler is a polypropylene hollow spherical filler.

The pool body is a horizontal cylindrical shape.

The pool body adopts glass fiber reinforced plastic composite material.

Beneficial effects: Compared with the prior art, the utility model adopts a biologically enhanced septic tank to treat toilet sewage, and treats toilet sewage with scattered discharge, high concentration of organic pollutants, and difficult centralized treatment, with high treatment load and good effect. The operation of the device is stable and reliable, economical and reasonable. The bio-enhanced septic tank of the utility model not only widens the treatment process of this type of sewage, but also has certain reference significance for the treatment of other industrial waste water.

Description of drawings

Fig. 1 is the bio-enhanced septic tank structural representation of the utility model;

In the figure: 1. Pool body; 2. Manhole; 3. Exhaust pipe; 4. Water inlet pipe; 5. Filter device; device; 9. Secondary strengthening tank; 10. Second stuffing box; 11. Second circulating flooding device; 12. Treatment tank; 13. Water outlet pipe.

Detailed ways

The present utility model will be further described below with reference to specific embodiments.

Example 1

As shown in FIG. 1, a bio-enhanced septic tank includes a horizontal cylindrical tank body 1 with a cavity, and water inlet pipes 4 and water outlet pipes 13 arranged at both ends of the tank body 1. There are two partition boards, and the partition board divides the cavity of the pool body 1 into the first-level strengthening pool 6, the second-level strengthening pool 9 and the treatment pool 12; the first-level strengthening pool 6, the second-level strengthening pool 9 and the treatment pool 12 There is a manhole 2 at the top of the water inlet, which is convenient for workers to clean and dig; the water inlet pipe 4 extends into the first-level strengthening pool 6, and one end of the water inlet pipe 4 located inside the first-level strengthening pool 6 is provided with a filter device 5, and the filter device is The filter screen has a pore size of 8mm. Its purpose is to remove large floating substances in the septic tank, so as not to affect the subsequent operation of the entire system. The retained substances in the filter screen need to be cleaned manually periodically, which can be done through the preset manhole. There is a first stuffing box 7 in the first-level strengthening pool 6; the top of the first-level strengthening pool 6 is provided with an exhaust pipe 3, which is convenient for the discharge of gas in the pool; A circulating flashing device 8; a second stuffing box 10 is arranged in the secondary strengthening tank 9; a second circulating flashing device 11 is arranged between the secondary strengthening tank 9 and the treatment tank 12; .

The tank body 1 is made of high-quality glass fiber reinforced plastic composite material, which is durable and avoids leakage caused by the inability of ordinary brick-concrete septic tanks to resist corrosion, which will pollute the groundwater resources and cause the problem of building foundation settlement.

The first stuffing box 7 and the second stuffing box 10 are provided with biological fillers. The biological fillers are polypropylene hollow spherical fillers, which have large pore variability, no blockage, long material life, no adhesion to clusters, and large surface cross-sectional area. The film hangs quickly. The process used in the stuffing box is the biofilm treatment technology. After a period of cultivation in the stuffing box, a large number of microorganisms in this area multiply on the surface of the filler to form a biofilm, and the sewage contacts the biofilm on the surface of the filler, and the organic pollutants contained in the sewage It is degraded by microorganisms to realize the purification treatment of sewage. The two-stage stuffing box improves the degree of biodegradation, greatly reduces the concentration of COD and ammonia nitrogen in the sewage, and also has comprehensive functions such as grille and filtration. In addition, the fallen biofilm brought into the effluent is removed by precipitation in the treatment tank 12, which greatly reduces the content of SS suspended matter in the effluent and improves the purification degree of the effluent.

The above-mentioned bio-enhanced septic tank is used to treat the sewage of a toilet. The water volume of the sewage is 45m ³ /d, and the water quality indicators are COD _cr 950mg/L, BOD ₅ 495mg/L, SS 48mg/L, chromaticity 60.

The treatment process is as follows: after the sewage to be treated passes through the filter device 5 to remove suspended solids and floating substances, it enters the primary strengthening tank 6, and is precipitated and degraded through the first stuffing box 7, and then the sewage enters the first circulating flooding device 8. The secondary strengthening tank 9 is further precipitated and degraded by the second stuffing box 10, and then the sewage enters the treatment tank 12 from the second circulating flooding device 11 for further sedimentation, and the finally treated water flows out of the septic tank through the water outlet pipe 13.

The relevant indicators of the treated wastewater are: COD _cr 110mg/L, BOD ₅ 75mg/L, SS 10mg/L, and chromaticity 12. From the comparison of various water quality indicators before and after treatment, it can be seen that the concentration of organic pollutants is greatly reduced after the bio-enhanced septic tank treatment, and the removal rates of COD and BOD ₅ are 88.42% and 84.8%, respectively. In addition, the SS and chromaticity treatment effect of sewage is also better.

Example 2

The structure of the bio-enhanced septic tank of this embodiment is basically the same as that of the first embodiment, the only difference is that the water inlet pipe 4 extends into the first stuffing box 7, and the position of the first stuffing box 7 is higher than that of the second stuffing box 10 out 0.1 meters. In the sewage entering the septic tank, the part with a large specific gravity sinks to the bottom of the tank for septic treatment, and the part with a small specific gravity floats above the water surface, so the composition of different water layers is quite different. For different water layers, the use of stuffing boxes The final effect is different.

The above-mentioned bio-enhanced septic tank is used to treat the sewage of a toilet. The water volume of the sewage is 50m ³ /d, and the water quality indicators are COD _cr 800mg/L, BOD ₅ 500mg/L, SS 40mg/L, chromaticity 50. The relevant indicators of the treated wastewater are: COD _cr 80mg/L, BOD ₅ 65mg/L, SS 10mg/L, and chroma 10. From the comparison of various water quality indicators before and after treatment, it can be seen that the concentration of organic pollutants is greatly reduced after treatment in the bio-enhanced septic tank.

Example 3

The structure of the bio-augmented septic tank of this embodiment is basically the same as that of Embodiment 2, the only difference is that the position of the first stuffing box 7 is 0.4 meters higher than that of the second stuffing box 10 .

The above-mentioned bio-enhanced septic tank is used to treat the sewage of a toilet. The water volume of the sewage is 55m ³ /d. The water quality indicators are COD _cr 900mg/L, BOD ₅ 550mg/L, SS 48mg/L, chromaticity 80. The relevant indicators of the treated wastewater are: COD _cr 70mg/L, BOD ₅ 60mg/L, SS 7mg/L, chroma 8. From the comparison of various water quality indicators before and after treatment, it can be seen that the concentration of organic pollutants is greatly reduced after treatment in the bio-enhanced septic tank.

Claims (7)

1. a kind of biological reinforced type septic tank enters water at pond body (1) both ends including having the pond body (1) of a cavity and being arranged Manage (4) and outlet pipe (13), which is characterized in that equipped with two pieces of partition panels in the pond body (1), partition panel is by the sky of pond body (1) Chamber is divided into primary reinforcement pond (6), secondary reinforcement pond (9) and processing pond (12), and the water inlet pipe (4) protrudes into the primary reinforcement In pond (6), the internal one end of the primary reinforcement pond (6) that is located at of the water inlet pipe (4) is equipped with filter device (5), and described one Grade, which is strengthened in pond (6), is equipped with the first stuffing box (7), and the top of the primary reinforcement pond (6) is equipped with exhaust pipe (3), the level-one Strengthen and be equipped with the first circulation flashing device (8) between pond (6) and the secondary reinforcement pond (9), is set in the secondary reinforcement pond (9) Have the second stuffing box (10), the second circulation flashing device is equipped between the secondary reinforcement pond (9) and the processing pond (12) (11), the outlet pipe (13) connect with the processing pond (12)；It is set in first stuffing box (7) and the second stuffing box (10) There is biologic packing material.

2. biological reinforced type septic tank according to claim 1, which is characterized in that the position of first stuffing box (7) 0.1~0.4 meter is higher by than second stuffing box (10).

3. biological reinforced type septic tank according to claim 1, which is characterized in that further include three manholes (2), the people Hole (2) is separately positioned on the top of the primary reinforcement pond (6), secondary reinforcement pond (9) and processing pond (12).

4. biological reinforced type septic tank according to claim 1, which is characterized in that the filter device (5) is strainer, hole Gap is 8mm.

5. biological reinforced type septic tank according to claim 1, which is characterized in that the biologic packing material is polypropylene hollow Ball-type packing.

6. biological reinforced type septic tank according to claim 1, which is characterized in that the pond body (1) is horizontal cylindrical.

7. biological reinforced type septic tank according to claim 1, which is characterized in that the pond body (1) is multiple using glass reinforced plastic Condensation material.