CN217265296U

CN217265296U - Biochemical pond of municipal sewage treatment

Info

Publication number: CN217265296U
Application number: CN202122932251.1U
Authority: CN
Inventors: 林霁芸; 李澄; 肖一星
Original assignee: Kunming Jingjian Environmental Technology Co ltd
Current assignee: Kunming Jingjian Environmental Technology Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-08-23
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a biochemical pool for treating urban sewage, which comprises a first sewage filtering pool, a first flocculation pool, a first sedimentation pool, an aeration pool, a second flocculation pool and a second sedimentation pool; a filter screen is arranged in the first sewage filtering tank; a first conveying pipeline is arranged on the side wall of the first sewage filtering tank; the tail end of the first conveying pipeline is provided with a first flocculation tank; the first flocculation tank is communicated with the first sedimentation tank through a second conveying pipeline; the first sedimentation tank is connected with an aeration tank through a third conveying pipeline; the aeration tank is connected with a second flocculation tank through a fourth connecting pipeline; the second flocculation tank is connected with a second sedimentation tank through a fifth connecting pipeline. The application the biochemical pond of municipal sewage treatment, can hold sewage volume big, treatment effect good, the treatment effeciency is high, suitable using widely.

Description

Biochemical pond of municipal sewage treatment

Technical Field

The utility model relates to a sewage treatment device technical field, concretely relates to biochemical pond of municipal sewage treatment.

Background

Municipal sewage is domestic sewage, industrial wastewater and runoff sewage in the urban area. Generally, the sewage is collected by urban canals and is discharged into water after being treated by an urban sewage treatment plant. In addition to containing a large amount of organic substances, germs and viruses in urban sewage, due to the advanced development of industry, the water quality of industrial wastewater (accounting for about 60-80% of the total amount of the urban sewage) is increasingly complex, and the pollution of runoff sewage is increasingly serious, so that the urban sewage contains various toxic and harmful pollutants of various types and degrees. The treatment of urban sewage involves many aspects, and the comprehensive planning must be carried out on the sewer system, the position and treatment process of sewage treatment plants, the utilization and discharge requirements of the treated sewage and the like.

The biochemical treatment is simply referred to as biological treatment or biochemical treatment. The treatment process of the method is a sewage treatment method which mixes and contacts the waste water or the solid waste with microorganisms, decomposes organic matters and certain inorganic poisons such as cyanides, sulfides and the like in the waste water by utilizing the biochemical action in the microorganisms and converts unstable organic matters and inorganic poisons into nontoxic substances. The aerobic biological treatment and the anaerobic biological treatment can be divided according to the existence of oxygen in the reaction process.

Various pollutants in the sewage need to be effectively removed in the urban sewage treatment process through the biochemical treatment method, and the aeration tank is easy to block in the oxygen-consuming fermentation process due to the problems of the existing equipment; insufficient contact between the medicament and sewage in the flocculation process and the like.

Disclosure of Invention

The utility model aims to provide a biochemical pool for treating urban sewage, which solves the problem of the prior equipment that the aeration pool is easy to block in the oxygen-consuming fermentation process; the contact between the medicament and sewage is insufficient in the flocculation process.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a biochemical pool for treating urban sewage comprises a first sewage filtering pool 1, a first flocculation pool 2, a first sedimentation pool 3, an aeration pool 4, a second flocculation pool 5 and a second sedimentation pool 6;

a filter screen 7 is arranged in the first sewage filtering tank 1; a first conveying pipeline 8 is arranged on the side wall of the first sewage filtering tank 1; the tail end of the first conveying pipeline 8 is provided with a first flocculation tank 2; the first flocculation tank 2 is communicated with the first sedimentation tank 3 through a second conveying pipeline 9; the first sedimentation tank 3 is connected with an aeration tank 4 through a third conveying pipeline 10; the aeration tank 4 is provided with a second flocculation tank 5 through a fourth connecting pipeline 11; the second flocculation tank 5 is provided with a second sedimentation tank 6 through a fifth connecting pipeline 12.

Further, a stirring device is arranged inside the first flocculation tank 2; the stirring device is a floating stirring device; the floating stirring device comprises a driving motor 13, a fixing plate 14, a stirring paddle 15 and a fixing rope 16; the top of the fixed plate 14 is provided with a driving motor 13; the bottom of the fixed plate 14 is provided with a stirring paddle 15; the side wall of the fixed plate 14 is provided with a fixed rope 16; the tail end of the fixed rope 16 is fixedly connected with the side wall of the first flocculation tank 2; the paddle 15 is driven by the driving motor 13 to rotate.

Further, sludge suction channels are arranged at the bottoms of the first sedimentation tank 3 and the second sedimentation tank 6; a sludge suction pump is arranged on the sludge suction channel.

Furthermore, a plurality of first flocculation basin 2 is provided in parallel respectively, and the inside of every first flocculation basin 2 corresponds and sets up a agitating unit.

Further, a baffle plate 19 is arranged in the aeration tank 4; the baffle 19 sets the aeration tank 4 into a plurality of interconnected compartments 20; a group of aeration devices is arranged in each compartment 20; the aeration device comprises an aeration nozzle 21 arranged at the bottom of the aeration tank 4 and a stirrer 22 fixedly arranged on the baffle plate 19; a set of agitators is provided in each compartment 20.

Further, a disinfection tank 23 and a water storage tank 24 are connected to the end of the second sedimentation tank 6 at a time.

Compared with the prior art, the utility model discloses an at least, have one of following beneficial effect:

the utility model discloses a biochemical pool for treating urban sewage, which is provided with a first sewage filtering pool 1, a first flocculation tank 2, a first sedimentation tank 3, an aeration tank 4, a second flocculation tank 5, a second sedimentation tank 6, a filter screen 7, a first conveying pipeline 8 and other structures aiming at the characteristics of large amount and complex components of urban sewage; different harmful components in the sewage are separated by setting multiple times of flocculation; carrying out aerobic fermentation on the sewage by arranging an aeration tank; aiming at the problem of large sewage quantity, the flocculation tank is arranged into a plurality of small tanks, so that the problems of insufficient contact and poor flocculation effect caused by a larger tank are avoided; the aeration tank is provided with a plurality of mutually communicated compartments, so that the smaller space is more favorable for modularized management and control, and the treatment accuracy is improved; in addition, this application has still set up agitator and the agitating unit that floats, and the supplementary treatment effeciency that improves.

In conclusion, the municipal sewage treatment biochemical tank has the advantages of large sewage capacity, good treatment effect, high treatment quality and suitability for popularization and use.

Drawings

Fig. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic view of the structure of the floating mixer of the present invention;

fig. 3 is a schematic view of a part of the structure of the stirrer 22 of the present invention.

In the figure:

a first sewage filtering tank 1; a first flocculation tank 2; a first sedimentation tank 3; an aeration tank 4; a second flocculation tank 5; a second sedimentation tank 6; a filter screen 7; a first delivery duct 8; a second delivery duct 9; a third delivery duct 10; a fourth connecting pipe 11; a fifth connecting pipe 12; a drive motor 13; a fixed plate 14; a stirring paddle 15; a fixing rope 16; a baffle plate 19; a compartment 20; an air nozzle 21; a stirrer 22; a sterilizing tank 23; a reservoir 24.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in the figure:

example 1:

Example 2:

on the basis of example 1:

a stirring device is arranged in the first flocculation tank 2; the stirring device is a floating stirring device; the floating stirring device comprises a driving motor 13, a fixing plate 14, a stirring paddle 15 and a fixing rope 16; the top of the fixed plate 14 is provided with a driving motor 13; the bottom of the fixed plate 14 is provided with a stirring paddle 15; the side wall of the fixed plate 14 is provided with a fixed rope 16; the tail end of the fixed rope 16 is fixedly connected with the side wall of the first flocculation tank 2; the paddle 15 is driven by the drive motor 13 to rotate.

Example 3:

on the basis of examples 1-2:

sludge suction channels are arranged at the bottoms of the first sedimentation tank 3 and the second sedimentation tank 6; a sludge suction pump is arranged on the sludge suction channel.

Example 4:

on the basis of examples 1 to 3:

the first flocculation basin 2 is provided with a plurality of in parallel respectively, and the inside of every first flocculation basin 2 corresponds and sets up a agitating unit.

Example 5:

on the basis of examples 1 to 4:

a baffle plate 19 is arranged in the aeration tank 4; the baffle 19 sets the aeration tank 4 into a plurality of interconnected compartments 20; a group of aeration devices is arranged in each compartment 20; the aeration device comprises an aeration nozzle 21 arranged at the bottom of the aeration tank 4 and a stirrer 22 fixedly arranged on the baffle plate 19; a set of agitators is provided in each compartment 20.

Example 6:

on the basis of examples 1 to 5:

the end of the second sedimentation tank 6 is connected with a disinfection tank 23 and a water storage tank 24.

Reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. A biochemical pool for treating urban sewage is characterized by comprising a first sewage filtering pool (1), a first flocculation pool (2), a first sedimentation pool (3), an aeration pool (4), a second flocculation pool (5) and a second sedimentation pool (6);

a filter screen (7) is arranged in the first sewage filtering tank (1); a first conveying pipeline (8) is arranged on the side wall of the first sewage filtering tank (1); the tail end of the first conveying pipeline (8) is provided with a first flocculation tank (2); the first flocculation tank (2) is communicated with the first sedimentation tank (3) through a second conveying pipeline (9); the first sedimentation tank (3) is connected with an aeration tank (4) through a third conveying pipeline (10); the aeration tank (4) is connected with a second flocculation tank (5) through a fourth connecting pipeline (11); the second flocculation tank (5) is connected with a second sedimentation tank (6) through a fifth connecting pipeline (12).

2. The biochemical pool for municipal sewage treatment according to claim 1, wherein a stirring device is provided inside the first flocculation tank (2); the stirring device is a floating stirring device; the floating stirring device comprises a driving motor (13), a fixing plate (14), a stirring paddle (15) and a fixing rope (16); the top of the fixed plate (14) is provided with a driving motor (13); the bottom of the fixed plate (14) is provided with a stirring paddle (15); a fixing rope (16) is arranged on the side wall of the fixing plate (14); the tail end of the fixed rope (16) is fixedly connected with the side wall of the first flocculation tank (2); the stirring paddle (15) is driven by the driving motor (13) to rotate.

3. The biochemical pool for treating the municipal sewage according to claim 1, wherein the bottom of the first sedimentation tank (3) and the bottom of the second sedimentation tank (6) are provided with sludge suction channels; a sludge suction pump is arranged on the sludge suction channel.

4. The biochemical pool for treating the urban sewage according to claim 1, wherein a plurality of the first flocculation pools (2) are respectively arranged in parallel, and a stirring device is correspondingly arranged inside each first flocculation pool (2).

5. The biochemical pool for treating the municipal sewage according to claim 1, wherein a baffle (19) is arranged in the aeration tank (4); the baffle (19) sets the aeration tank (4) into a plurality of interconnected through compartments (20); a group of aeration devices are arranged in each compartment (20); the aeration device comprises an aeration nozzle (21) arranged at the bottom of the aeration tank (4) and a stirrer (22) fixedly arranged on the baffle (19); a set of agitators is disposed within each compartment (20).

6. The biochemical pool for treating the municipal sewage according to claim 1, wherein the second sedimentation tank (6) is provided with a disinfection tank (23) and a water storage tank (24) at one end thereof.