CN214360901U

CN214360901U - Fixed bed biomembrane river and lake treatment module

Info

Publication number: CN214360901U
Application number: CN202120569668.3U
Authority: CN
Inventors: 李庚�; 魏云东; 白华
Original assignee: Shenzhen Qianhai Bairun Environmental Protection Technology Co ltd; Guangdong Chuangshi Environmental Technology Co ltd
Current assignee: Guangzhou Zhuangwei Environmental Protection Technology Co ltd
Priority date: 2021-03-20
Filing date: 2021-03-20
Publication date: 2021-10-08
Anticipated expiration: 2031-03-20

Abstract

The utility model discloses a fixed bed biomembrane river and lake improvement module, including processing pond, biological treatment module and blowdown module, biological treatment module installs the upper portion at the processing pond, blowdown module installs the lower part at the processing pond and blowdown module is located biological treatment module's below, biological treatment module includes overhead gage, lower baffle and a plurality of PVA carriers, overhead gage and lower baffle are all installed in the processing pond, the PVA carrier sets up between overhead gage and lower baffle; this fixed bed biomembrane river lake improvement module is through the biological treatment module in the treatment tank and blowdown module synergism, can effectively strengthen river lake sewage pollutant's explanation efficiency, and simple structure, and construction low cost, the function is comprehensive, and the degradation effect of nitrogen substance is good, need not frequent clean, and is easy and simple to handle, overhauls portably.

Description

Fixed bed biomembrane river and lake treatment module

Technical Field

The utility model relates to a sewage treatment system, concretely relates to fixed bed biomembrane river lake improvement module.

Background

With the rapid development of national economy, the problem of river and lake pollution is more prominent, and the river and lake pollution not only affects the living environment but also has a profound effect on the health of the national people. At the present stage, the river and lake treatment modular equipment mainly uses biological filter equipment, the filter equipment is based on a biofilm method, and has strong adaptability and impact resistance, but because a filter material layer is thick, pollution blockage faults are easy to generate, regular back washing is needed, the size is large, and the weight is heavy after the filter material layer is added, so that the river and lake treatment modular equipment cannot be well adapted to river and lake water quality treatment and river and lake pollution emergency disposal sites.

The existing river and lake sewage treatment process is basically as follows: the filter module is characterized in that water enters from the lower end, water exits from the upper end, an aeration device is arranged at the lower end, the aerobic environment in the filter is kept, sewage is gradually contacted with a ceramsite filter material layer of the filter from bottom to top, a biological membrane is attached to the surface of the filter material, water flows gradually and contacts the biological membrane, a large number of microorganisms in the biological membrane degrade organic matters, nitrogen and phosphorus in water, the filter material layer not only degrades pollutants by means of the biological membrane formed on the surface of the filter material layer, but also intercepts suspended matters in the water by the aid of the compact filter material layer, and the suspended matters in the water are reduced. After the device is used for a period of time, the filter material layer is more in closure suspended matters and needs to be backwashed, and the filter material layer is washed by steam and water integrally to keep the function of the filter material layer.

The conventional river and lake sewage treatment device generally has low pollutant degradation efficiency of a BAF filter module, and the BOD load of the conventional BAF aeration filter process is about 2.5-6.0 kg/(m year filter material. day), which means that more filter materials are needed if the conventional BAF aeration filter process needs to bear higher treatment tasks, and meanwhile, a larger tank capacity is built, and the construction cost is higher. The function is not comprehensive, the whole process tank of the BAF filter tank is in an aerobic environment, and the total nitrogen removal effect is not obvious. Because of different requirements of nitrifying bacteria and denitrifying bacteria on the oxygen content of the environment, nitrification reaction in the BAF filter tank is obvious, ammonia nitrogen is removed quickly, but denitrification is not carried out basically in the full aerobic environment, and therefore the total nitrogen degradation effect is not good. The BAF filter is a biomembrane method processing system, although the sludge amount is little, the biomembrane periodically falls off and still generates part of the biochemical sludge, and the characteristic of tight filter material in the filter process is easy to cause blockage, thus influencing the use. Therefore, a back washing function is required to be arranged, the running cost is high, and the operation is complex. The filter tank is of a closed structure, the lower part of the filter tank is closed by the tank body, the upper part of the filter tank is filled and closed by the filter material, if the bottom aeration equipment needs to be overhauled and the bottom of the tank needs to be cleaned, the filter material needs to be fished out, and the engineering quantity is very large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fixed bed biomembrane river lake improvement module.

In order to achieve the above purpose, the following scheme is provided: the utility model provides a fixed bed biomembrane river lake improvement module, is including handling pond, biological treatment module and blowdown module, the biological treatment module mounting is on the upper portion of handling the pond, blowdown module mounting is in the below that the lower part of handling the pond and blowdown module are located biological treatment module, biological treatment module includes overhead gage, lower baffle and a plurality of PVA carrier, overhead gage and lower baffle are all installed in handling the pond, the PVA carrier sets up at the overhead gage under and between the baffle.

Further, the sewage discharging module comprises a material guiding hopper and a sludge discharging port, the material guiding hopper is arranged in the processing pool, and the sludge discharging port is arranged at the lower part of the material guiding hopper.

Furthermore, an aeration device is arranged on one side of the lower baffle plate, which is close to the upper baffle plate.

Further, one side of handling the pond is equipped with the water inlet and the water inlet is close to down the baffle, the opposite side of handling the pond is equipped with the delivery port and the delivery port is located the one side that the baffle kept away from down the baffle.

The utility model discloses a theory of operation and advantage lie in: this fixed bed biomembrane river lake improvement module is through the biological treatment module in the treatment tank and blowdown module synergism, can effectively strengthen river lake sewage pollutant's explanation efficiency, and simple structure, and construction low cost, the function is comprehensive, and the degradation effect of nitrogen substance is good, need not frequent clean, and is easy and simple to handle, overhauls portably.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Reference numerals in the drawings of the specification include:

1. the device comprises a treatment pool, a water inlet 2, a water outlet 3, an upper baffle 4, a lower baffle 5, a PVA carrier 6, an aeration device 7, a material guide hopper 8 and a sludge discharge port 9.

Detailed Description

The following is further detailed by the specific embodiments:

as shown in figure 1, the fixed bed biological membrane river and lake treatment module comprises a treatment tank 1, a biological treatment module and a sewage discharge module, wherein the biological treatment module is arranged at the upper part of the treatment tank 1, the sewage discharge module is arranged at the lower part of the treatment tank 1 and is positioned below the biological treatment module, the biological treatment module comprises an upper baffle plate 4, a lower baffle plate 5 and a plurality of PVA carriers 6, the upper baffle plate 4 and the lower baffle plate 5 are both arranged in the treatment tank 1, and the PVA carriers 6 are arranged between the upper baffle plate 4 and the lower baffle plate 5.

Wherein, treatment tank 1 bears the container for sewage, and biological treatment module uses the mode of biodegradable to handle to carry out sewage treatment, and blowdown module is used for discharging mud, goes up baffle 4 and baffle 5 synergism down, avoids PVA carrier 6 to escape, restricts PVA carrier 6's position.

As shown in fig. 1, the sewage discharging module includes a material guiding hopper 8 and a sludge discharge port 9, the material guiding hopper 8 is installed in the treatment tank 1, and the sludge discharge port 9 is arranged at the lower part of the material guiding hopper 8.

The material guide hopper 8 can collect sludge passing through the lower baffle 5, and the sludge discharge port 9 is used for discharging sludge in the material guide hopper 8.

As shown in fig. 1, an aeration device 7 is arranged on one side of the lower baffle 5 close to the upper baffle 4.

Wherein the aeration device 7 is used for aeration of sewage in the treatment tank 1, which is a mature technology in the prior art and is not described herein.

As shown in fig. 1, one side of the treatment tank 1 is provided with a water inlet 2, the water inlet 2 is close to a lower baffle 5, the other side of the treatment tank 1 is provided with a water outlet 3, and the water outlet 3 is located on one side of an upper baffle 4 far away from the lower baffle 5.

Wherein the water inlet 2 is used for leading sewage into the treatment tank 1, and the water outlet 3 is used for discharging the treated water.

The specific implementation process is as follows:

according to the fluidized bed biological membrane sewage treatment device, a PVA carrier 6 is filled in a treatment tank 1, and the upper part and the lower part of the treatment tank are respectively provided with an anti-escape baffle which is made of stainless steel through punching.

Polluted river water directly enters the treatment tank 1 from the water inlet 2, a PVA carrier 6 and an upper and lower anti-escape baffle are arranged in the treatment module, sewage enters the treatment module and then is mixed with the PVA carrier 6, the PVA carrier 6 has a specific surface area of 5000 square meters/m for manhour, so that the treatment module can bear a large amount of biological membranes, microbial agents are added through manual exogenous sources and cultured in a targeted manner, the BOD load of 50 kg/(m year filtration materials day) can be realized, and pollutants in water are degraded efficiently. Because the degradation efficiency of the treatment module is high, the water retention time is only 1/5 of a common activated sludge system, the small floor area and the low capital investment can be realized, and the high-level water outlet effect is obtained. The aeration device 7 is arranged on the lower baffle 5, so that a relatively stable area is formed in the space in the guide hopper 8 between the lower baffle 5 and the bottom of the treatment tank 1, a small amount of biomembranes peeled off from the PVA carrier 6 are conveniently precipitated to the bottom of the module, and are discharged out of the system through a sludge discharge port 9.

The fluidized bed biological membrane river and lake treatment module has very high biodegradation efficiency by means of high-density cultured microorganisms, can treat sewage with the same water volume, can reduce the tank volume by more than 50 percent compared with a common activated sludge method, does not need to independently establish an anoxic tank for auxiliary denitrification, and has the functions of degrading organic matters and synchronously nitrifying and denitrifying.

The PVA carrier 6 in the fluidized bed biomembrane river and lake treatment module has the ultrahigh specific surface area of square meter per m, less carriers can bear a great amount of microorganisms, the BOD load of the PVA carrier can reach 50 kg/(m year filter material day) at most (the BOD load of the BAF filter tank is 6.0 kg/(m year filter material day) at most), and the size of the PVA carrier is 1/5 of a common activated sludge system under the same water quality and water quantity, so that the transportation is convenient, the occupied area is reduced, and the requirements of a river and lake treatment site are met.

The PVA carrier 6 filling density is only about 10% of the tank capacity, the carrier is in a suspension state in the module, and river water with higher suspended matter can directly enter the treatment module without worrying about pollution and blockage, so that the system is efficient, simple in structure and free of backwashing.

Because the outer layer of the PVA carrier 6 is in an aerobic state, the central area of the inner layer is in an anoxic state, the nitrification and denitrification bactericides are added from an external source, so that the aggregation of nitrifying bacteria on the outer layer and the aggregation of denitrifying bacteria in an anoxic area on the inner layer can be realized, the nitrification and denitrification can be synchronously realized in the same module, and the function is more comprehensive.

Because PVA carrier 6 is by preventing escaping apron restriction in the module, and use high-efficient biological agent to inoculate, when facing special quality of water, can establish ties or a plurality of modules of connecting in parallel to pertinence ground accurate culture functional fungus crowd in different modules realizes more diversified function, makes biochemical treatment by mixed fungus crowd unordered state, becomes professional fungus crowd and cultivates in order.

The system has simple structure and convenient maintenance, can be organically combined with other processes, and is not easy to generate faults.

The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details, features, or other details of the present invention in the form of a more detailed description, which is presented for the purpose of illustration only, the more detailed description being taken by way of example only, and the more detailed description being presented for the purpose of illustrating the principles of the invention as embodied in the form of a more complete and readily available computer-readable medium. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the applicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a fixed bed biomembrane river lake improvement module which characterized in that: including handling pond, biological treatment module and blowdown module, biological treatment module installs on the upper portion of handling the pond, blowdown module installs in the lower part of handling the pond and blowdown module is located biological treatment module's below, biological treatment module includes overhead gage, lower baffle and a plurality of PVA carrier, overhead gage and lower baffle are all installed in handling the pond, the PVA carrier sets up between overhead gage and lower baffle.

2. The fixed bed biofilm river and lake treatment module of claim 1, wherein: the sewage discharging module comprises a material guide hopper and a sludge discharge port, the material guide hopper is arranged in the treatment tank, and the sludge discharge port is arranged at the lower part of the material guide hopper.

3. The fixed bed biofilm river and lake treatment module of claim 1, wherein: and an aeration device is arranged on one side of the lower baffle plate, which is close to the upper baffle plate.

4. The fixed bed biofilm river and lake treatment module of claim 1, wherein: one side of the treatment tank is provided with a water inlet, the water inlet is close to the lower baffle, the other side of the treatment tank is provided with a water outlet, and the water outlet is positioned at one side of the upper baffle, which is far away from the lower baffle.