CN203079739U - Aerobic moving bed and fixed bed-type immobilized biological reactor - Google Patents

Abstract

The utility model discloses an aerobic moving bed and a fixed bed type immobilized bioreactor, which comprises a box body, a moving bed and a fixed bed arranged in the box body, and a follow-up storage tank. A sewage inlet is arranged above the box body, and the sewage Through this inlet, it enters the box and reacts with immobilized organisms on the moving bed. After the reaction, the sewage passes through the fixed bed filled with immobilized biofilm and overflows into the subsequent storage tank. The side wall of the subsequent storage tank is also provided with an outlet. A mud discharge port is also provided under the body, and the mud discharge port is connected to the input end of the circulation pump through a pipeline. The utility model also has the following advantages: there is no longer only a single immobilized biofilm in a reaction pool; the problem that the biofilm that falls off during the treatment process is mixed into the water body makes the filter system load a lot; the continuous reaction is easy to realize Automatic operation; combination of moving bed and fixed bed; easy to move and on-site installation; fully enclosed, no odor leakage, convenient deodorization.

Description

A kind of aerobic moving bed and fixed bed immobilized bioreactor

technical field

The utility model relates to the treatment of industrial sewage and domestic sewage for the harmless treatment of kitchen waste in the environmental protection industry, in particular to an aerobic moving bed and a fixed bed immobilized bioreactor.

Background technique

Most of the existing sewage treatment is based on the biofilm sewage treatment technology. The biofilm method is a biological treatment method that allows microorganisms to attach to the inert filter material to form a film-like biological sludge, thereby purifying the sewage. There are several problems in the application of this method: 1. There is only a single immobilized biofilm in a reaction tank; 2. The problem that the biofilm that falls off during the treatment is mixed into the water body causes a large load on the filtration system; 3. The operation is cumbersome , the response is discontinuous; 5. It is inconvenient to move and install on site, and it needs civil engineering and other work, and the cost is too high; 6. There is odor leakage during the treatment process.

Contents of the invention

In order to solve the deficiencies of the prior art, the utility model provides an aerobic moving bed and a fixed bed immobilized bioreactor.

The technical scheme of the utility model is: an aerobic moving bed and fixed bed type immobilized bioreactor, including a box body, and a follow-up storage tank arranged on the moving bed and the fixed bed in the box body, and the above box body is set There is a sewage inlet through which the sewage enters the tank and reacts with immobilized organisms on the moving bed. After the reaction, the sewage passes through the fixed bed filled with immobilized biofilm and finally overflows into the subsequent storage tank. The side of the subsequent storage tank An outlet is also provided on the wall, and at least one mud discharge port is provided below the box, and the mud discharge port is connected to the input end of a circulation pump through a pipeline, and the sediment is discharged through the circulation pump.

The further improvement of the utility model comprises:

A filling structure composed of grid nets for support is also arranged between the fixed bed and the subsequent storage tank.

The bottom of the subsequent storage tank is also provided with at least one mud discharge port, and the mud discharge port is connected to the input end of the circulation pump through a pipeline.

The output end of the circulating pump is also connected with a sewage inlet.

An aeration tube is also arranged in the box, and the aeration tube is also connected with a Roots blower, and the Roots blower is fixed on the outer wall of the box.

In the process of harmless treatment of kitchen waste, industrial sewage and domestic sewage will inevitably be produced, and there are many ways to treat sewage. In view of the sewage discharged from the process of treating pollutants, the degree of pollution has dropped significantly, and the content of organic matter has dropped. In this way, The efficiency of biological treatment is improved under the condition of high aeration. In order to increase the reaction time, drainage baffles are added to the reaction tank in the design, and this dislocation arrangement has a certain settlement effect, which will not make larger The precipitate flow to the next fixed bed reaction. There are two main position designs for the fixed bed, one is high-density immobilized biological filling, and the reaction time for further purification of low-concentration sewage is very short, which is conducive to realizing continuous operation. The second is that the over-density filling and the flow direction of the fluid from bottom to top can further filter the sewage. The reactor can also realize cycle control, and when the outlet water quality is not up to standard, it can be returned to the reaction pool to continue the reaction until it reaches the standard. The service life of immobilized organisms is much longer than that of ordinary sludge, which avoids the work of frequently replacing sludge, and immobilized organisms do not have problems such as volume expansion and foaming. Moreover, the reactor realizes a closed and integrated design, which is convenient for installation and use.

At the same time, the utility model also has the following advantages, no longer there is only a single immobilized biofilm in a reaction tank, but the immobilized biofilm can be put in according to the different needs of different stages; it solves the problem of the biofilm falling off during the treatment process mixed into The water body makes the filtration system load a lot; the continuous reaction is easy to realize automatic operation; the combination of the moving bed and the fixed bed makes the processing load higher; it is convenient to move and install on site, and no need to do civil work, saving time and money. Money; can be fully enclosed, no odor leakage, convenient deodorization, and the hollow space of the equipment is small, the displacement is very low, saving equipment costs.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1. Inlet, 2. Outlet, 3. Immobilized organisms, 4. Grid, 5. Sludge outlet, 6. Circulation pump, 7. Roots blower.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail.

As shown in Figure 1, an aerobic moving bed and fixed bed immobilized bioreactor of the present utility model comprises a box body, and a follow-up storage tank arranged on the moving bed and the fixed bed in the box body, above the box body A sewage inlet 1 is provided, through which the sewage enters the box and reacts with immobilized organisms 3 on the moving bed. After the reaction, the sewage passes through the fixed bed filled with immobilized biofilm, and finally overflows into the subsequent storage tank. The side wall of the storage tank is also provided with an outlet 2, and at least one mud discharge port 5 is also provided below the box body, and the mud discharge port 5 is connected to the input end of the circulation pump 6 through a pipeline, and the circulation pump 6 Drain the sediment. A filling structure composed of grid nets 4 for support is also arranged between the fixed bed and the subsequent storage tank. At least one mud discharge port 5 is also provided at the bottom of the subsequent storage tank, and the mud discharge port 5 is connected to the input end of the circulation pump 6 through a pipeline. The output end of the circulating pump 6 is also connected to a sewage inlet. An aeration tube is also arranged in the box, and the aeration tube is also connected with a Roots blower 7, and the Roots blower 7 is fixed on the outer wall of the box.

Sewage enters the reaction tank and reacts with the immobilized organisms 3 on the moving bed, and the aeration of the Roots blower 7 increases the concentration of dissolved oxygen, increases the flow velocity on the surface of the biofilm, and increases the mass transfer rate. Sewage passes through a high-density fixed bed filled with immobilized biofilm. Finally overflow into subsequent storage tanks. When the sewage treatment level does not reach the standard, the circulation device starts to perform circulation treatment. The sediment at the bottom of the pond is discharged into the sludge pond by the circulation pump 6.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (5)

1. aerobic moving bed and fixed-bed type immobilization bioreactor, it is characterized in that, comprise casing, and be arranged on moving-bed and fixed bed in the casing, follow-up storage tank, described casing top is provided with the sewage import, sewage enters in the casing by this import and reacts on moving-bed with immobilization biological, the fixed bed of reaction back sewage by filling by immobilized biomembrane, follow-up storage tank is advanced in last overflow, also be provided with outlet on the sidewall of described follow-up storage tank, described casing below also is provided with at least one mud discharging mouth, described mud discharging mouth has the input terminus of recycle pump by pipe connection, by described recycle pump throw out is discharged.

2. a kind of aerobic moving bed according to claim 1 and fixed-bed type immobilization bioreactor is characterized in that, described fixed bed and and follow-up storage tank between also be provided with the filling framework that the grid that is used to support is formed.

3. a kind of aerobic moving bed according to claim 1 and fixed-bed type immobilization bioreactor is characterized in that, described follow-up storage tank bottom also is provided with at least one mud discharging mouth, and described mud discharging mouth is connected with the input terminus of described recycle pump by pipeline.

4. a kind of aerobic moving bed according to claim 1 and fixed-bed type immobilization bioreactor is characterized in that, described circulation delivery side of pump also is connected with sewage inlet.

5. a kind of aerobic moving bed according to claim 1 and fixed-bed type immobilization bioreactor is characterized in that, also are provided with aeration tube in the described casing, and described aeration tube also is connected with roots blower, and described roots blower is fixed on the cabinet exterior.

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