CN214115263U

CN214115263U - Sewage treatment device

Info

Publication number: CN214115263U
Application number: CN202022282105.4U
Authority: CN
Inventors: 不公告发明人
Original assignee: Shenyang Geerun Technology Co ltd
Current assignee: Shenyang Geerun Technology Co ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-09-03
Anticipated expiration: 2030-10-14

Abstract

The utility model discloses a sewage treatment device, which belongs to the technical field of sewage treatment. The utility model discloses a treatment chamber, treatment chamber contains a plurality of buoyancy sludge carrier, the chamber is collected for the biomembrane to the bottom of treatment chamber, and vertical column arranges in the treatment chamber coaxially, the bottom of vertical column is equipped with air conveyor. In use, sewage is introduced into the treatment chamber through the inlet and circulated around the treatment chamber by the suction action of the vertical column and the air conveyor. The treated water passes through the biofilm collection chamber to an external settling chamber, the exterior of which is fitted with an outlet for treated water. The utility model greatly increases the sewage treatment effect and speed, has novel conception, skillful structure and strong practicability.

Description

Sewage treatment device

Technical Field

The utility model relates to a sewage treatment device, which belongs to the technical field of sewage treatment.

Background

All sewage treatment systems require a sewage collection station for the treatment of solid particles (sediment) and the entire sewage needs to be screened to remove coarse solid material. A shredder can be used to shed coarse material before screening the sewage. The collection station may typically be equipped with an overflow port to prevent flooding. The wastewater may be transferred from the wastewater collection station to a surge tank or directly to secondary treatment.

There is therefore a need for a low maintenance treatment plant that provides a high degree of purification at low energy and construction costs. In addition, the device design should be compact, making it relatively easy to install, and with minimal disturbance to the landscape. Ideally, the plant should operate without any sludge treatment or produce relatively small amounts of sludge when operating.

Biological treatment of domestic sewage using aerobic activated sludge process is a very efficient and low cost purification process. However, conventional time-lapse aeration requires a large amount of aeration and precipitation. And by combining the sludge carrier and the activated sludge, the occupied area can be obviously reduced.

Disclosure of Invention

In view of this, the utility model provides a sewage treatment device, which aims to overcome the defects existing in the prior art. In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a sewage treatment device, include:

a treatment chamber containing a plurality of sludge carriers and a biofilm collection area in a lower portion thereof for receiving, in use, biofilm from the sludge carriers; an outlet for delivering contaminated water to an upper portion of the treatment chamber; a settling chamber in fluid communication at its lower end with the treatment chamber such that, in use, effluent can flow from the treatment chamber to the settling chamber via the biofilm collection zone; a vertical column disposed in the processing chamber which, in use, rises above a liquid level and a lower region in fluid communication with the processing chamber; air delivery means for, in use, introducing air or other gas into a lower region of the vertical column to aerate liquid therein and to cause liquid to flow upwardly to overflow into the treatment chamber.

Thus, liquid flowing from the top of the vertical column will flow back to the top of the treatment chamber, tending to provide a recirculation effect, thereby causing the sludge carriers to circulate up and down in the treatment chamber.

Preferably, the air introduction means comprises a nozzle designed to generate a large number of micro-bubbles that saturate the liquid with air and simultaneously press the contaminated water in the water against the surface.

Preferably, a screen is provided at the upper end of the treatment chamber to retain the sludge carriers within the treatment chamber.

Preferably, the screen separates a major portion of the treatment chamber from the biofilm collection area to prevent sludge carriers from entering the biofilm collection area.

Preferably, the sludge carriers are made of a material having a density of less than one, so that they can float in the water. The sludge carrier may be made of any suitable material, although plastic is preferred. The sludge carrier is generally of uniform size. In a particularly preferred embodiment, the sludge carrier is generally spherical, with a single hole from one side to the other. In this way, one or more anaerobic decomposition processes may occur within the pores of the sludge carrier, while on the exposed outer surface one or more aerobic decomposition processes predominate. This can provide a very high speed, high level of effluent purification. The inner and/or outer surfaces of the sludge carrier are textured or patterned to provide an extended surface area.

Preferably, the settling chamber has an outlet for purified water towards its upper end.

Preferably, the process chamber is generally cylindrical and the vertical column is coaxially located within the process chamber.

Preferably, the settling chamber is in the form of a ring surrounding the treatment chamber. Particularly where high purification and removal of suspended solids is required, aeration means may be provided in the lower part of the settling chamber to place the lower end of the settling chamber in fluid communication with another settling chamber. In case the above-mentioned vertical cylinder/ring arrangement is used, the further settling chamber may be of the first-mentioned ring-shaped form.

Drawings

The invention may be carried out in various ways and embodiments of the sewage treatment plant will now be described, by way of example only, with reference to the accompanying drawings, in which: FIG. 1 is a plan view and a cross-sectional view of a sewage treatment apparatus of the present invention; FIG. 2 is an enlarged cross-sectional view of the sludge carrier passing through the present invention.

Reference numerals: the device comprises a treatment chamber 1, an inlet 2, a vertical column 3, an air conveying device 4, a screen 5, a reaction column 6, a sludge carrier 7, a biomembrane collection chamber 8, a settling chamber 9, an outlet 10, a single hole 11 and wings 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

FIG. 1 is a plan view and a cross-sectional view of a sewage treatment apparatus of the present invention. Comprising a cylindrical treatment chamber 1 and having an inlet 2 at its upper end for inflow of sewage. Within the process chamber 1 is coaxially arranged a vertical column 3, at the lower end of which is an air delivery device 4. Extending radially from the upper and lower ends of the vertical column 3 are two spaced parallel screens 5 which define a reaction column 6 in which a plurality of sludge carriers 7 are confined. The sludge carrier 7 is made of a plastic material, generally spherical, but with a corrugated outer surface and a single hole 11 therethrough, as shown in fig. 2. Below the lower screen 5 a biofilm collection chamber 8 is defined, which biofilm collection chamber 8 is in radial communication with a settling chamber 9 arranged concentrically with the process chamber 1.

In use, sewage is introduced into the treatment chamber 1 through the inlet 2 and then passes through the upper screen 5 into the reaction column 6. The sludge carrier 7 carries microorganisms for aerobic decomposition of the sewage in the sewage on the outer surface thereof and microorganisms for anaerobic decomposition of the sewage on the inner surface thereof. The sludge carrier has a density of less than 1 and is therefore floating in the liquid and can rise to the top. The downward flow counteracts this effect when the sludge carriers leave the inlet 2. In addition, the air delivery means 4 generates a large number of micro-bubbles which cause the sewage in the vertical column 3 to become saturated with air and cause it to rise rapidly above the column and to be dispersed back into the reaction chamber. Thereby, the sludge carriers 7 are kept moving up and down in the reaction chamber, thereby enhancing the contact of the microorganisms with the material contained therein. Furthermore, there are always collisions between the sludge carriers 7, which contribute to the removal of excess microbial material by the falling current. This self-cleaning function protects the biological filter from clogging and makes the device almost maintenance free. Thus, the biofilm is collected in the biofilm collecting region 8. The purified water migrates outwardly into the settling chamber 9 and can be withdrawn from the outlet 10.

Fig. 2 shows a schematic view of the sludge carrier 7 used in fig. 1. The sludge carrier is spherical and has a single hole 11 therethrough, the size of which can be varied as desired at any time. The sludge carrier 7 is made of plastic with a density of less than 1 and is therefore buoyant. The outer and inner surfaces are provided with wings 12 to extend the surface area thereof.

Using the design principles of the present invention, the size of the process chamber can be increased to handle higher volumes. The special air delivery system increases the oxygen solubility in the water and thus improves the purification process. The vertical column allows aeration of the water to increase its oxygen content and also allows circulation of the sewage to increase the biomass on the sludge carriers. The sludge carriers make the design flexible, so that a treatment chamber with larger capacity can be designed by increasing the number of the sludge carriers. In this way, the aeration tank can be increased to a larger size without increasing the surface area, for example, increasing the volume of an existing treatment chamber or adding another treatment chamber operating in parallel.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A sewage treatment plant, characterized by comprising a treatment chamber (1), said treatment chamber (1) containing a plurality of sludge carriers (7); the bottom of the treatment chamber (1) is provided with a biomembrane collecting chamber (8); the vertical column (3) is coaxially arranged in the processing chamber (1), and the bottom of the vertical column (3) is provided with an air conveying device (4); in use, sewage is introduced into the treatment chamber (1) through the inlet (2) and is circulated around said treatment chamber (1) by the suction action of the vertical column (3) and the air conveyor; the treated water passes through a biofilm collection chamber (8) to a settling chamber (9) externally fitted with an outlet (10) for treated water.

2. A wastewater treatment plant according to claim 1, characterized in that the air-conveying means (4) comprises nozzles for generating a plurality of micro-bubbles which flood the liquid with air and press the wastewater against the surface.

3. Sewage treatment plant according to claim 1, characterised in that the sludge carrier (7) is made of plastic.

4. An apparatus for treating waste water according to claim 1, characterized in that the upper end of the settling chamber (9) is provided with a purified water outlet.

5. Sewage treatment plant according to claim 1, characterised in that said sludge carriers (7) are spherical, with a single hole (11) from one side to the other.

6. An apparatus for treating waste water according to claim 1, characterized in that the treatment chamber (1) is cylindrical and the vertical column (3) is coaxially located within the treatment chamber (1).

7. An apparatus for treating waste water according to claim 1, characterized in that the settling chamber (9) is in the form of a ring surrounding the treatment chamber.