CN117361747A - Anaerobic aeration anaerobic reaction system with biological filler rope - Google Patents
Anaerobic aeration anaerobic reaction system with biological filler rope Download PDFInfo
- Publication number
- CN117361747A CN117361747A CN202311579825.9A CN202311579825A CN117361747A CN 117361747 A CN117361747 A CN 117361747A CN 202311579825 A CN202311579825 A CN 202311579825A CN 117361747 A CN117361747 A CN 117361747A
- Authority
- CN
- China
- Prior art keywords
- gas
- anaerobic
- biological
- filler
- liquid mixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000945 filler Substances 0.000 title claims abstract description 99
- 238000005273 aeration Methods 0.000 title claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 239000002351 wastewater Substances 0.000 claims description 32
- 244000005700 microbiome Species 0.000 claims description 24
- 238000012856 packing Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 5
- 239000010802 sludge Substances 0.000 abstract description 20
- 230000009471 action Effects 0.000 abstract description 4
- 241001148471 unidentified anaerobic bacterium Species 0.000 abstract description 4
- 238000004065 wastewater treatment Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 32
- 238000003756 stirring Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 239000012528 membrane Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000009940 knitting Methods 0.000 description 4
- 239000002957 persistent organic pollutant Substances 0.000 description 4
- 239000002028 Biomass Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000035764 nutrition Effects 0.000 description 3
- 235000016709 nutrition Nutrition 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 210000004081 cilia Anatomy 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000002101 nanobubble Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000036619 pore blockages Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
Abstract
The invention relates to the technical field of structures of wastewater treatment equipment, and particularly discloses an anaerobic aeration anaerobic reaction system provided with a biological filler rope; the device is provided with a biological filler, a gas-liquid mixing pipeline, a gas generator and a gas pipeline; the biological stuffing device is provided with an upper hanging plate and a lower hanging plate, and a plurality of biological stuffing ropes are arranged between the upper hanging plate and the lower hanging plate; the gas-liquid mixing pipelines penetrate through the biological filler in the vertical direction; the lower end of the gas-liquid mixing pipeline is provided with a gas outlet; the gas generator is communicated with each gas-liquid mixing pipeline through a gas pipe body; the gas generated by the gas generator is communicated with each gas-liquid mixing pipeline through a gas pipe body; and then discharged downwards through the air outlet. Therefore, in the present invention, wastewater treatment is performed by utilizing the action of anaerobic bacteria on the biofilm attached to the biofilm on the biofilm carrier strand in cooperation with anaerobic bacteria in the activated sludge.
Description
Technical Field
The invention relates to the technical field of structures of wastewater treatment equipment, in particular to an anaerobic aeration anaerobic reaction system with a biological filler rope.
Background
Currently, for wastewater treatment, the solution partly adopted is to arrange mobile biological fillers: adding a certain amount of suspended filler with density close to that of water into an anaerobic reactor, and freely moving the suspended filler and activated sludge in the reactor in wastewater by a stirring system; when the wastewater continuously flows through the filler, a biological film is gradually formed on the inner surface and the outer surface of the filler, the wastewater is purified through the decomposition of microorganisms, the biological film continuously grows and thickens, and the biological film falls off under the conditions of water flow and stirring and flushing so as to be updated.
Such packing arrangements require a grid or mesh at the outlet to avoid packing loss, but are also prone to clogging; meanwhile, as the filler is in a fluidized state, local filler accumulation phenomenon is easy to occur in the reactor, and a stirring system is easy to damage.
Furthermore, a solid biological filler with a large specific surface area and fixed inside and with pores is arranged: a filler bracket is arranged in the anaerobic reactor, and solid filler is fixed on the filler bracket; the wastewater sequentially passes through the fixed filler layers and is contacted stably, organic pollutants flow through pores in the filler and are trapped by a biological film growing in the filler, and the wastewater is purified by the decomposition of microorganisms.
The main disadvantage of this packing arrangement is the possibility of blockage, and due to the tight arrangement of the solid packing, the biofilm in the packing becomes thicker as it grows, which can cause pore blockage, and the wastewater forms local channeling outside the packing.
Disclosure of Invention
The invention aims to provide a sewage treatment device which has ingenious structural design and utilizes anaerobic bacteria attached to a biological film on a biological filler rope to cooperate with the anaerobic bacteria in activated sludge to treat sewage.
In order to solve the technical problems, the invention adopts the following technical scheme: an anaerobic aeration anaerobic reaction system provided with a biological filler rope is provided with a biological filler, a gas-liquid mixing pipeline, a gas generator and a gas pipeline; the biological stuffing device is provided with an upper hanging plate and a lower hanging plate, and a plurality of biological stuffing ropes are arranged between the upper hanging plate and the lower hanging plate;
the gas-liquid mixing pipelines penetrate through the biological filler in the vertical direction; the lower end of the gas-liquid mixing pipeline is provided with a gas outlet; the gas generator is communicated with each gas-liquid mixing pipeline through a gas pipe body;
the gas generated by the gas generator is communicated with each gas-liquid mixing pipeline through a gas pipe body; and then discharged downwards through the air outlet.
Further, the gas generator is of a gas chamber structure and is used for generating gas; the bio-filler rope is used as a microorganism carrier, and microorganisms are attached to the bio-filler rope.
Further, the upper end and the lower end of each biological filler rope are respectively and fixedly connected to the upper hanging plate and the lower hanging plate;
further, the biological filler rope is formed by drawing PET polyester modified materials.
Further, gaps are arranged between every two adjacent biological filler ropes.
Further, a container barrel is arranged at the periphery of the biological filler and used for containing wastewater, an upper cover plate is arranged on the container barrel, and the gas generator is arranged on the upper cover plate; the upper hanging plate is positioned in the container barrel and below the upper cover plate.
Further, the contact anaerobic reactor is also provided with an operation table, the upper part of the gas-liquid mixing pipeline is positioned above the operation table, the gas generator and the gas pipeline are both positioned on the operation table, and the biological filler is positioned below the operation table.
Further, the contact anaerobic reactor is also provided with a step, which is connected to the operating table.
Therefore, the anaerobic reactor uses the biological filler ropes as microorganism carriers to be fixedly arranged in the reactor, and microorganisms are attached to the biological filler ropes in a biofilm mode besides growing in suspended activated sludge, so that the aim of improving the microbial load in the reactor is fulfilled. The biological film grows to a certain thickness and then falls off naturally or under the action of anaerobic aeration circulation stirring, a mechanism which is continuously iterated and updated is naturally formed, and the fallen biological film and activated sludge flow together with effluent to a subsequent process for further treatment.
Compared with the traditional anaerobic reactor, the unit volume of the anaerobic reactor with the biological filler rope has stronger organic pollutant treatment capacity and impact load resistance capacity in unit time, and breaks through the upper limit of the design of the traditional anaerobic reactor so as to meet the working condition demands of large water inflow and water quality change, high organic matter concentration and limited occupied area.
The biological filler ropes in the anaerobic reactor are formed by drawing PET polyester modified materials, the diameter of monofilaments reaches submicron, countless fibrous nylon yarns are woven into long ropes like hairbrush strips by knitting yarns, the knitting belts also have certain elasticity, the specific surface area of formed filler is far larger than that of filler commonly used in the industry at present, and a plurality of filler ropes are arrayed into a curtain.
The anaerobic system consists of a curtain type biological filler rope and an upper layer filler supporting frame and a lower layer filler supporting frame, and the curtain type biological filler rope is bound and fixed on the upper layer filler supporting frame and the lower layer filler supporting frame.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view showing the external appearance structure of an anaerobic aeration anaerobic reaction system provided with a biological filler rope according to the present invention;
FIG. 2 is a schematic structural view of the bio-filler of the present invention;
FIG. 3 is a schematic diagram of the structure of a contact anaerobic reactor removal vessel of the biofilm carrier strand of the present invention.
Fig. 4 is a partial schematic structural view of the bio-filler of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1 to 4, the anaerobic aeration anaerobic reaction system provided with the biological filler ropes is provided; the anaerobic aeration anaerobic reaction system provided with the biological filler rope is provided with a biological filler, a gas-liquid mixing pipeline 2, a gas generator 3 and a gas pipeline 4; the biological stuffing device is provided with an upper hanging plate 11 and a lower hanging plate 12, and a plurality of biological stuffing ropes 13 are arranged between the upper hanging plate 11 and the lower hanging plate 12;
the gas-liquid mixing pipelines 2 are multiple, and in the vertical direction, the gas-liquid mixing pipelines 2 penetrate through the biological filler; the lower end of the gas-liquid mixing pipeline 2 is provided with a gas outlet 21; the gas generator 3 is communicated with each gas-liquid mixing pipeline 2 through a gas pipe body 4;
the gas generated by the gas generator 3 flows to each gas-liquid mixing pipeline 2 through a gas pipe body 4; and then discharged downward through the air outlet 21.
Preferably, the gas generator 3 is a gas chamber structure for generating gas; the biological filler ropes 13 are used as microorganism carriers, microorganisms are attached to the biological filler ropes, and the upper end and the lower end of each biological filler rope 13 are fixedly connected to the upper hanging plate 11 and the lower hanging plate 12 respectively; the biological filler rope is formed by drawing PET polyester modified materials.
In the invention, the periphery of the biological stuffing device is provided with a container barrel 5 for containing wastewater, the container barrel 5 is provided with an upper cover plate 51, and the gas generator 3 is arranged on the upper cover plate 51; the upper hanging plate 11 is positioned in the container cylinder below the upper cover plate 51.
Therefore, in the invention, the container barrel 5 is used for containing wastewater, the biological filler is contained in the container barrel, a water inlet is arranged below the container barrel, the wastewater enters the container barrel from the lower part, and the wastewater is submerged in the upper hanging plate 11; thus, the bio-filler is completely submerged in the wastewater; the lower port of the gas-liquid mixing pipeline 2, namely the gas outlet 21 is immersed in the wastewater, the upper gas chamber generates gas, the gas is discharged downwards through the gas-liquid mixing pipeline 2 and is discharged into the wastewater from the lower gas outlet 21, and bubbles flow upwards in the wastewater and pass through the biological filler ropes; thus, the bubbles themselves will also be cut into smaller bubbles during the upward flow, increasing the contact between the wastewater and the bio-filler rope. The gas below can promote the water flow to flow upwards, so that the wastewater body flows, and the up-and-down circulation stirring is formed.
For the convenience of operation, the contact anaerobic reaction system is also provided with an operation table 6, the upper part of the gas-liquid mixing pipeline 2 is positioned above the operation table, the gas generator 3 and the gas pipeline 4 are both positioned on the operation table 6, and the biological filler is positioned below the operation table. The contact anaerobic reaction system is also provided with a step 7, and the step 7 is connected to the operation table.
Therefore, in the prior art, in order to prevent sludge precipitation in the reactor and more effectively exert anaerobic effect, the water body needs to be stirred, and the traditional stirring has no two modes of non-mechanical and water circulation. The liquid-gas energy anaerobic aeration stirring mode is that water is lifted to manufacture a water head through an electric drive submersible pump arranged below the water surface, water naturally circulates to the bottom of the water body through a guide pipe to form upper and lower water body exchange circulation stirring, in the course of the running, the underwater running has negative pressure difference, air is introduced into the pipe at the optimal position for forming negative pressure, the water mixed air is sheared by turbulent flow in the descending water guide pipe, the air is cut into countless small bubbles which are spread at the water bottom to form aeration oxygenation, and a certain distance between the guide pipe and the bottom of the water body is beneficial to the diffusion of the bubbles to a larger range. According to Stokes' law, the rising speed of a bubble in water is proportional to the square of the diameter of the bubble, the size of the bubble determines the rising speed, and finally the bubble floats on the water surface at a certain speed. Aeration is usually to introduce air or oxygen into a water body, and liquid-gas anaerobic aeration is to design aeration equipment to inhale oxygen-free gas inside a reactor instead of outside air.
The anaerobic aeration anaerobic reactor has two functions of water up-and-down exchange and gas floating up, and stirring and mixing are carried out simultaneously. The liquid-gas energy is naturally introduced in a negative pressure mode, and particularly the action mechanism of the liquid-gas energy is not limited by the depth of the water body, so that a reactor with a larger proportion of height-diameter ratio can be designed for places with limited land, and the buried water body temperature can be kept to have small fluctuation throughout the year in high and cold areas.
In other high-efficiency anaerobic reactors, solid or active filler is also added in the high-efficiency anaerobic reactor as a carrier of microorganisms, but the first method is to apply the biological filler rope to the high-efficiency anaerobic reactor, wherein the filler part of the biological filler rope is formed by drawing PET polyester modified materials, the diameter of a monofilament reaches submicron level, innumerable fibrous nylon filaments are woven into long ropes like hairbrush strips by knitting yarns, and the knitting yarns also have certain elasticity.
The filler has hydrophilic material and is easy to hang with biomembrane, and the specific surface area can reach 5000-8000 m 2 /m 3 The specific surface area is an important index for measuring the biological carrier, and the larger the structural surface area in unit volume is, the more biological membranes can be hung on the biological carrier, and the more the microorganisms are attached to the biological membranes, the more natural biomass is. The best biological carrier is granular sludge, which is a carrier for constructing coagulation by microorganisms, and the specific surface area can reach 1 ten thousand m 2 /m 3 The culture period of the granular sludge is as long as more than half a year, and the granular sludge can normally run even if inoculated for 1-3 months, and once the system is crashed, the granular sludge is cultured again or inoculated again, and the granular sludge is extremely sensitive to the influence of external environment and water quality fluctuation, so that the system is easy to crash. The granular sludge has high specific gravity, most of the granular sludge is accumulated in the part below the middle of the reactor, and the biological filler fills more than 90% of the space inside the whole reactor, so that the biomass can be carried far more than that of a granular sludge system.
The specific surface area of other fillers such as quartz sand, ceramsite and the like is relatively small, dirt blocking is easy to occur, the specific surface area of the activated carbon is far greater than that of granular sludge due to the special structure, but the space is narrow and small, which can be used for microorganism growth, and meanwhile, the problem of dirt blocking is also faced, so that the optimal biological carrier is a biological filler rope, and after the activated carbon enters stable operation, a mature biological film on the filler rope has the property of granular sludge and is a fixed bed type.
The biological filler rope and liquid-gas energy aeration combination applied to an anaerobic system has the following advantages:
1) Compared with other high-efficiency anaerobic reactors, the anaerobic aeration anaerobic reactor has low investment operation and maintenance cost, and the anaerobic aeration anaerobic reactor has the advantages that the biological filler ropes are added, but the submerged pump with low lift and large flow is adopted, so that the functions of water circulation, aeration stirring and mixing are integrated, and the daily operation energy consumption is reduced; in terms of space saving, the reactor can be built to a height that is higher than the height of all existing reactors; the treatment of wastewater with high concentrations of organic contaminants will produce large amounts of renewable biogas, which is profitable if used to generate electricity that can be supplied to the reactor system and even to other electricity-consuming facilities, and thus the use of anaerobic aeration anaerobic for the treatment of wastewater with high concentrations is productive.
2) The system load is high, the organic load of the biochemical system is normally in a certain proportional relation with the sludge age of the sludge, namely the longer the microorganism can stay in the system is, the higher the load is, the shorter the iteration period of the microorganism is, the microorganism domesticated to adapt to the system is not fixed, the treatment efficiency of wastewater is not high along with the too fast water inflow and outflow loss, so that the load is low, a fixed biological film grows through biological fillers, and the biological film becomes a mode for effectively promoting the microorganism to stay as long as possible until the biological film grows to a certain thickness, and the biological film is updated by stripping under the action of aeration water circulation deflection; micro-nano bubbles can be randomly generated in the liquid-gas energy aeration process, and can infiltrate into the biological film to loosen, so that the biological film is promoted not to harden. This makes it possible to achieve a much higher organic load in the reaction system, since the (HRT) Solids Residence Time (SRT) and the Microorganism Residence Time (MRT) are much greater than the hydraulic residence time.
When the system is in normal operation, the newly-entered pollutant and the reaction substrate are quickly fused and diluted, the newly-entered pollutant and the reaction substrate are effectively intercepted by a biological film in the running process and are decomposed in the extremely-short hydraulic retention time, after the wastewater flows out of the reactor, the organic pollutant is digested to a great extent, and the residual sludge is extremely small in production.
3) The system is not easy to collapse, the first starting time of the system is shorter, in the inoculation and debugging process, the biofilm can be molded for 1-2 weeks, the self-adaptive culture and debugging is not more than two months generally, if impact is only inhibited in the process, the biofilm is not easy to disintegrate once molded like flocculent activated sludge, and the biofilm can continue to grow after the conditions are adapted; in the normal operation process, if the impact of toxic and harmful substances or other uncontrollable factors is encountered, a part of biological films are damaged and lost, but the system is not collapsed rapidly, and the condition is recovered after being improved; it is not difficult to start again after stopping water and stopping operation, most microorganisms only sleep due to lack of nutrition when the system stops running, and the microorganisms can be revived immediately after the nutrition is provided.
4) The biological filler ropes of the universal anaerobic aeration system are customized according to the concentration of organic pollutants in wastewater and the degradation difficulty, and for high-pollution wastewater, as the biological film is quickly grown and iterated due to high organic matter content, the quantity of filler ropes is reduced by adopting cilia-long fillers, so that the volume of the biological film is increased to bear more biomass to decompose the organic matters; the low-concentration organic wastewater is treated by adopting short cilia and correspondingly increasing the quantity of biological filler ropes, and the quantity of microorganisms in the system is almost the same as that of the high-concentration organic wastewater, so that the water inflow rate is increased to meet the nutrition requirement of the survival of a large quantity of microorganisms, thereby reducing the HRT and increasing the volume load of the system; especially when treating low concentration waste water, because the gas production is little, within the acceptable standard of the atmosphere environment, the waste water can be overflowed automatically without organization if no special requirement exists, and waste gas treatment facilities are not needed.
Thus, in the present invention:
1. compared with the movable biological filler, the anaerobic reactor has the advantages that the biological filler ropes are fixedly arranged, grid plates or grids are not needed to be arranged at the water outlet to avoid filler loss, the problem of water outlet blockage is avoided, and the phenomena of local filler accumulation and stirring system damage are avoided.
2. Compared with a fixed biological filler, the anaerobic reactor uses biological filler ropes as microorganism carriers at first, and the biological filler ropes are distributed at certain intervals and uniformly distributed in the effective use space of the whole reactor so as to ensure that the flow of wastewater in the reactor is smooth; meanwhile, as the biological filler ropes are long ropes like hairbrush strips, the specific surface area of the biological filler ropes is larger than that of common fillers in the current industry in the reactors with the same volume, and the risk of blockage caused by too compact arrangement of the biological filler can be avoided.
3. The installation density of the filler can be adjusted aiming at wastewater with different concentrations, and the filler can be customized according to requirements.
4. The small biogas bubbles generated in the anaerobic reaction process can be affinitive on the biological membrane, and the anaerobic aeration has a scouring effect on the small biogas bubbles, so that the bubbles can rapidly separate the biological membrane, and the wastewater flows in the process, so that the effective contact time of the biological membrane and the wastewater is more sufficient.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. An anaerobic aeration anaerobic reaction system provided with a biological filler rope is characterized in that the contact anaerobic reactor is provided with a biological filler, a gas-liquid mixing pipeline (2), a gas generator (3) and a gas pipeline (4); the biological stuffing device is provided with an upper hanging plate (11) and a lower hanging plate (12), and a plurality of biological stuffing ropes (13) are arranged between the upper hanging plate (11) and the lower hanging plate (12);
the gas-liquid mixing pipelines (2) are multiple, and in the vertical direction, the gas-liquid mixing pipelines (2) penetrate through the biological filler; the lower end of the gas-liquid mixing pipeline (2) is provided with a gas outlet (21); the gas generator (3) is communicated with each gas-liquid mixing pipeline (2) through a gas pipe body (4);
the gas generated by the gas generator (3) is communicated with each gas-liquid mixing pipeline (2) through a gas pipe body (4); and then discharged downwards through an air outlet (21).
2. Anaerobic aerated anaerobic reaction system provided with biological filler ropes according to claim 1, characterized in that the gas generator (3) is of gas chamber structure for generating gas; the biological filler rope (13) is used as a microorganism carrier, and microorganisms are attached to the biological filler rope.
3. Anaerobic aeration anaerobic reaction system provided with biological stuffing ropes according to claim 2, wherein the upper and lower ends of each biological stuffing rope (13) are fixedly connected to the upper hanging plate (11) and the lower hanging plate (12), respectively.
4. The anaerobic aerated anaerobic reaction system provided with the biological filler ropes according to claim 2, wherein the biological filler ropes are formed by drawing PET polyester modified materials.
5. Anaerobic aerated anaerobic reaction system provided with bio-filler ropes according to claim 2, characterized in that gaps are provided between adjacent bio-filler ropes (13).
6. The anaerobic aeration reaction system provided with the biological stuffing ropes according to claim 2, wherein a container cylinder (5) is arranged at the periphery of the biological stuffing device and is used for containing wastewater, the container cylinder (5) is provided with an upper cover plate (51), and the gas generator (3) is arranged on the upper cover plate (51); the upper hanging plate (11) is positioned in the container barrel and below the upper cover plate (51).
7. Anaerobic aerated anaerobic reaction system provided with biological packing ropes according to claim 2, characterized in that the contact anaerobic reactor is also provided with an operation table, the upper part of the gas-liquid mixing pipeline (2) is positioned above the operation table, the gas generator (3) and the gas pipeline (4) are positioned on the operation table 6, and the biological packing device is positioned below the operation table.
8. The anaerobic aerated anaerobic reaction system provided with biological packing ropes according to claim 7, wherein the contact anaerobic reactor is further provided with a step 6, the step 7 being connected to the operation table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311579825.9A CN117361747A (en) | 2023-11-24 | 2023-11-24 | Anaerobic aeration anaerobic reaction system with biological filler rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311579825.9A CN117361747A (en) | 2023-11-24 | 2023-11-24 | Anaerobic aeration anaerobic reaction system with biological filler rope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117361747A true CN117361747A (en) | 2024-01-09 |
Family
ID=89396814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311579825.9A Pending CN117361747A (en) | 2023-11-24 | 2023-11-24 | Anaerobic aeration anaerobic reaction system with biological filler rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117361747A (en) |
-
2023
- 2023-11-24 CN CN202311579825.9A patent/CN117361747A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101977853B (en) | Method and device for the treatment of waste water | |
| CN103435231B (en) | Intensive nitrogen-phosphorus removing membrane biological reaction device and sewage treatment method | |
| CN106927638B (en) | Multistage diversion type MBBR sewage treatment system and treatment method | |
| CN104445600A (en) | Membrane pollution in-situ control based membrane bioreactor and technology thereof | |
| CN105000666A (en) | Wastewater biological membrane reactor based on filler and folding plates | |
| CN101823794B (en) | Method for fast biomembrane formation of fluidized filler in reaction technology of fluidized carrier biomembrane | |
| CN100554182C (en) | A kind of external membrane bioreactor system of sewage disposal and method of disposing of sewage thereof of being used for | |
| CN210481127U (en) | Sewage biochemical treatment device integrating moving bed and fixed bed biological membrane | |
| CN204281406U (en) | A kind of membrane bioreactor based on fouling membrane in-situ control | |
| CN117361747A (en) | Anaerobic aeration anaerobic reaction system with biological filler rope | |
| EP2601146A1 (en) | Apparatus and method for anaerobic treatment of wastewater | |
| KR100458764B1 (en) | Method and apparatus for the treatment of contaminated water by submersible biological aerated filter | |
| CN2568636Y (en) | Contact oxidation biological filter cell adapting suspension filtering material | |
| CN204356135U (en) | A kind of modularization BAF | |
| CN211497085U (en) | Integrated treatment equipment for in-situ treatment and improvement of water body | |
| CN114291890A (en) | Device and method for treating sewage by combination of mud and membrane | |
| CN210885506U (en) | Internal circulation high-efficiency denitrification biological denitrification filter tank | |
| CN209161799U (en) | Unpowered full-buried type rural domestic waste processing unit | |
| CN203728687U (en) | Integrated combined nitrogen and phosphorus removal device | |
| CN111410299A (en) | Flexible filler sequencing batch biofilm reactor | |
| CN202124523U (en) | Biological contact oxidation tank for optional allocation of packing and aerating system | |
| CN216550033U (en) | Integrated black and odorous water body emergency treatment system | |
| CN111018263A (en) | Interface cutting biological purification sewage treatment device | |
| CN212740893U (en) | A sewage treatment device for receiving dirty pool | |
| CN212356724U (en) | Rear denitrification filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |