WO2007115464A1 - Dispositif de traitement anaérobie d'eaux usées - Google Patents

Dispositif de traitement anaérobie d'eaux usées Download PDF

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Publication number
WO2007115464A1
WO2007115464A1 PCT/CN2007/000391 CN2007000391W WO2007115464A1 WO 2007115464 A1 WO2007115464 A1 WO 2007115464A1 CN 2007000391 W CN2007000391 W CN 2007000391W WO 2007115464 A1 WO2007115464 A1 WO 2007115464A1
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Prior art keywords
treatment
sewage
water
sewage treatment
wall
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PCT/CN2007/000391
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English (en)
Chinese (zh)
Inventor
Feng Zhao
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Feng Zhao
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Publication of WO2007115464A1 publication Critical patent/WO2007115464A1/fr

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    • 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

Definitions

  • the invention relates to a sewage anaerobic treatment device.
  • the pollutants in domestic sewage and industrial wastewater are various. It is not expected that the pollutants can be eliminated by only one method.
  • a sewage often needs a treatment system composed of several methods or technologies to achieve treatment. The extent of the request.
  • sewage treatment can be divided into primary, secondary and tertiary treatment.
  • the first treatment is to remove the solid pollutants or sediments in the suspended state of the sewage.
  • the primary treated sewage is not suitable for discharge.
  • the primary treatment is pretreatment.
  • the main task of the secondary treatment is to remove the colloidal and dissolved organic pollutants (B0D substances) in the sewage, and the removal rate can reach more than 90%.
  • B0D substances colloidal and dissolved organic pollutants
  • the various methods of biological treatment can meet this requirement as long as they are in normal operation.
  • the sewage has already met the standards for discharging water.
  • the primary and secondary treatment methods are often used in urban sewage.
  • the third-stage treatment which is also called the conventional treatment method, is to further remove the pollutants that have not been removed by the secondary treatment. It is a deep treatment, which is based on sewage recovery and sewage reuse. Purpose.
  • Sludge is a by-product of sewage treatment and an inevitable product. If the sludge is not properly disposed, it will cause secondary pollution.
  • the primary treatment forms include septic tanks, primary sedimentation tanks, regulating tanks, etc.
  • septic tanks For domestic sewage of washing and shower type, there are few organic components, which can be treated by physical method, that is, primary precipitation. Pools, etc.
  • septic tanks For domestic sewage containing organic components such as manure, it is treated by biological methods, which is commonly referred to as septic tanks.
  • the secondary treatment of domestic sewage can be carried out in a variety of processes, and can be treated with aerobic treatment or anaerobic treatment. Since the aerobic treatment process is high in efficiency and mature in technology, more secondary treatment processes are selected for aerobic treatment. In real life, in most cases, manure and sewage are confluent, especially in underdeveloped areas, so septic tanks are widely used.
  • primary treatment septic tanks
  • the domestic sewage treated by the septic tank does not meet the requirements of the discharged water body, so it needs to be discharged into the urban pipe network and concentrated in the secondary treatment system (sewage treatment plant).
  • Step processing Due to the complexity of the urban pipe network, the long distance between the pipelines and the rapid expansion of the city, the condition of the pipe network is difficult to adapt to the development of the city. Once the pipes of certain diameters are buried underground, the change is difficult, so the sewage treated in the secondary treatment
  • the design of the treatment plant needs to be considered in terms of scale, geographical environment, characteristics along the line, operation and maintenance, etc. It has caused many sewage treatment systems to achieve the desired application effect and purpose.
  • the operation and maintenance of the sewage treatment plant is a professional work and a high investment.
  • only the first-level treatment facilities such as septic tanks cannot guarantee environmental protection and meet the discharge of sewage.
  • the construction, operation, and maintenance of a secondary treatment facility such as a wastewater treatment plant is another complex system work. Therefore, it is an effective and effective way to solve the problem of domestic sewage prevention by seeking a simple and practical domestic sewage treatment technology that can integrate the functions and requirements of primary treatment and secondary treatment of domestic sewage into one system.
  • anaerobic treatment is chosen because anaerobic treatment is more suitable for sewage treatment with high organic matter load and the ability to treat sludge, and is suitable for establishing processes that satisfy primary treatment and secondary treatment.
  • Anaerobic biological treatment technology is an artificial control and enhancement of microbial processes that are ubiquitous in nature. It is an effective means to deal with organic pollution and wastewater.
  • the technology is The development in the past 100 years is slow, mainly because of: (1) Anaerobic biological treatment technology is a multi-bacterial group, multi-level anaerobic fermentation process, with many populations, complex relationships, difficult to figure out; (2) some The populations are mutually symbiotic, and it is difficult to isolate and identify them. (3) The technique of culturing and separating bacteria under anaerobic conditions is complicated; (4) Because aerobic treatment is efficient under the same conditions, the application is high. Extensive, becoming the mainstream of biological treatment, weakening the attention and research in anaerobic treatment.
  • This stage of development has the following characteristics: (1) Concentrating sewage sedimentation and sludge fermentation in a septic tank (commonly known as septic tank), that is, based on a simple sedimentation tank, and appropriately storing the sludge storage volume as a volatile suspended organism A place where solids are liquefied.
  • the treatment target is sewage and sludge.
  • the sewage separator and the sludge fermentation are separated by a transverse partition; the upper and lower chambers are separately carried out, thereby forming a so-called double-layer sedimentation tank.
  • the third stage (1906-2001) the advanced stage of development of independent construction. This stage of development has the following characteristics:
  • the main treatment facilities developed during this phase are common anaerobic digestion tanks and UASB, anaerobic contact processes, two-phase anaerobic digestion processes, AF, AFB, etc.
  • the treatment targets also focus on the reduction of B0D and COD and the degradation of certain organic poisons.
  • the reactor body of anaerobic biological treatment technology has also experienced three eras.
  • Schroepfer developed an anaerobic contact reactor in the 1950s to further increase processing efficiency and load. These reactors can be referred to as the initial anaerobic reactor and are primarily used for the treatment of domestic sewage.
  • the second condition that a highly efficient anaerobic treatment system needs to meet is to make good contact between the incoming and maintained sludge.
  • This issue undoubtedly involves the design of the water distribution system.
  • a high reactor design or a high reflux strength can be obtained by using a effluent reflux.
  • anaerobic reactor mixing can be derived from both the mixing of the influent and the perturbation of the gas.
  • the influent water cannot use high hydraulic and organic loads, for example, when the process has to be used at low temperatures, the mixing intensity in the sludge bed is too low to offset the short-flow effect.
  • At least one overflow partition wall is disposed on the bottom wall of the pool body, and an overflow passage is formed between the overflow partition wall and the top wall of the pool body, and the cavity of the pool body is divided into water bodies and relatively independent.
  • Biological treatment area ;
  • the height of the bottom of the water inlet pipe from the bottom wall is higher than the height of the bottom wall, and the height of the overflow wall from the bottom wall is higher than the height of the water outlet from the bottom wall;
  • Each of the biological treatment regions is provided with at least one longitudinal through-body partition, and each of the biological treatment areas is divided into a plurality of biological body units of water bodies, wherein each of the longitudinal through-body partitions is provided with sewage flowing through Overcurrent channel
  • the height of the upper edge of the overflow passage from the bottom wall is lower than the height of the bottom of the water outlet pipe from the bottom wall;
  • Biocarrier fillers are provided on both sides of each of the longitudinal via separators to form a biocarrier filler region.
  • each of the divided water body units has a bio-carrier filler unit region, and the bio-carrier filler region is composed of a plurality of filler units; the filler units are arranged in a matrix.
  • the biocarrier filler region covers the flow passage and the flow cross section.
  • the biocarrier filler is intimately attached to the longitudinal via separator.
  • the total length of the biocarrier filler region along the water flow direction is at least 50% of the length of the cavity of the sewage treatment device along the water flow direction, that is, the length of the space of the biocarrier filler region distribution treatment pool in the horizontal direction of the treatment tank is greater than
  • the length of the water body is more than 50%.
  • the water body between the biocarrier filler region and the overflow partition forms a digestive fluid buffer.
  • the void between the biocarrier filler region and the bottom wall of the cell body forms a sinking zone.
  • the sedimentation zone gradually decreases with the progress of sewage treatment.
  • each of the longitudinal through-hole partitions is provided with at least one vent hole, and each of the vent holes is positioned lower than the top wall of the pool body and higher than the water surface.
  • At least one cleaning inspection port is respectively disposed on the top walls of each of the overflow partition walls; or directly above each of the overflow partition walls
  • the top wall is provided with a cleaning inspection port; each unit water body is provided with at least one cleaning inspection port above the water body between the packing area and the packing area and the top wall above the water body between the packing area and the wall.
  • the water inlet is connected to an inlet pipe, and the water outlet is connected to an outlet pipe.
  • the upper portion of the cell body is provided with a vent hole for discharging or collecting gas.
  • the exhaust hole is connected to an exhaust pipe.
  • Figure 1 is a horizontal schematic view of a sewage treatment tank provided with two longitudinal through-hole partitions.
  • Figure 2 is a view of the A-A of Figure 1.
  • Figure 3 is a B-B view of Figure 1.
  • Figure 4 is an A-A view of a sewage treatment tank with four longitudinal through-hole partitions.
  • the sewage treatment device of the invention is a series of ecological anaerobic treatment device for a non-powered advection unit of domestic sewage.
  • a horizontally-disposed sewage treatment tank one end of the treatment tank is an inlet, which is connected to the inlet pipe of the sewage, and the other end is an outlet, which is connected to the outlet pipe of the sewage pipe.
  • the cell body is divided into a plurality of unit water bodies in series, and the bio-carrier filler is arranged in the unit water body, and the system groups the plurality of group cell carrier units formed by the three-dimensional bio-carrier filler in the pool body, in the process of the sewage passing through the packing unit,
  • the surface of the carrier filler forms a biofilm and a biological flora, and the sewage is digested; the biological carrier filler is distributed in a large amount in the pool space, accounting for more than 50% of the effective water volume; and as the sewage is pushed and translated, the sewage flows through a series of series.
  • the flora unit, different unit body sets different dominant bacteria groups, and different organic pollutants in the sewage are fully contacted and digested under the action of different biological groups.
  • the sewage treatment device can be rooted According to the scale of the treated sewage, water quality requirements and other factors to determine different specifications; for the large scale of sewage treatment, multiple monomer treatment tanks can be used in parallel.
  • the methods in the following examples are conventional methods unless otherwise specified.
  • Embodiment 1 A sewage treatment tank provided with two or four longitudinal through-hole partitions (overflow partitions) is only provided with a sewage treatment tank having only one overflow partition wall, two or four longitudinal through-hole partitions As an example, the sewage treatment tank of the present invention will be explained. In practical applications, according to the specific requirements of sewage treatment, a plurality of longitudinal through-hole partitions and corresponding unit bacterial carrier packing areas may be added in the chamber of the sewage treatment tank to improve the treatment scale and effect of the sewage.
  • the water body enters from the water inlet, and under the action of the liquid level difference, the flow operation is carried out, and the overflow partition wall is arranged in the middle of the pool body to divide the water body into two relatively independent units, the front unit
  • the water body overflows into the rear unit water body, and the water space on both sides of the overflow partition wall is the digestive liquid buffer area; in order to increase the microbial load and the contact condition, a large amount of the biological carrier filler is stereoscopically disposed in the water flow process before and after the two parts of the pool body.
  • the filler has a layered continuous distribution.
  • a longitudinal through-body partition is arranged in the filling zone, and the middle of the longitudinal through-body partition is an overflow passage, which can guide the water flow operation.
  • the overflow partition wall separates the water body of the treatment tank into two relatively independent water bodies, which can effectively eliminate and weaken the influence of pH on the biological treatment, and can also guide the overflow of the water flow.
  • the middle of the longitudinal through-body partition is a flow passage that acts to direct the flow of water, while the upper half of the longitudinal through-body partition traps the suspended matter and the lower half is capable of separating the sediment.
  • a large number of three-dimensional elastic fillers are disposed on both sides of the longitudinal through-body separator, and the filler is three-dimensionally filled in the flow cross section of the water flow, and is hierarchically distributed.
  • the sewage is diffused and pushed under the action of its own pressure.
  • the carrier filler parasitizes a large number of microbial flora.
  • the biological flora is densely distributed on the filler to form a layer. The changes in water quality environment and nutrients form different dominant flora, which is fully contacted with wastewater during the treatment process.
  • One end of the sewage treatment tank is the water inlet end, and the other end is the water outlet end, and the water inlet and the water outlet are respectively provided, and the water inlet and the water outlet can enter or discharge from different directions as needed.
  • the digestive juice of sewage has a buffering effect, which can adjust the pH and play a role in environmental transition.
  • Below the pool body and below the packing is a sinking mud area, and a clearing inspection port is provided on the top wall of the pool body.
  • a vent pipe is exhausted or methane gas is collected at the upper portion of the cell body. If the air vent is provided in the upper part of the longitudinal bulk baffle, the gas can be collected or discharged intensively. If the air vent is closed, it can be collected separately. Or discharge gas.
  • the anaerobic treatment system established by the technical scheme forms a small ecological system. According to different domestic sewage treatment requirements, the series packing unit body can be increased, the sewage treatment process and the flora load can be prolonged to improve the treatment capacity.
  • each inlet having an inlet pipe 9 connected thereto;
  • the opposite side walls 2 of the side wall 2 are provided with corresponding three water outlets, and each water outlet is connected with an outlet pipe 10; the height of the water outlet from the bottom wall 3 is lower than the height of the water outlet from the bottom wall 3.
  • Water can enter or exit from three directions as needed.
  • the overflow partition wall 4 divides the cavity of the pool body into two large unit areas, which can be respectively used as the acidic hydrolysis unit area and the methanogen digestion unit area; the overflow partition wall 4 and the top wall 1 of the pool body form an overflow circulation Road.
  • the height of the overflow partition wall 4 from the bottom wall 3 is higher than the height of the water outlet from the bottom wall 3, and the height of the overflow partition wall 4 from the bottom wall 3 is lower than the height of the water inlet from the bottom wall 3.
  • the two large unit areas are respectively divided into two series sub-unit areas by a longitudinal through-body partition 5 having a flow passage 13 in the middle, and the longitudinal through-body partition 5 is divided into an upper section and a lower section by the overflow passage 13 .
  • the upper section of the longitudinal through-body partition 5 is fixed to the top wall 1 and the side wall 2
  • the lower section of the longitudinal through-body partition 5 is fixed to the bottom wall 3 and the side wall 2.
  • the lower section of the longitudinal through-body partition 5 blocks the sedimentation sludge and the upper section intercepts the suspended solids.
  • the height of the upper edge of the flow passage 13 from the bottom wall 3 is lower than the height of the overflow partition wall 4 from the bottom wall 3, so that when the sewage treatment is performed, the overflow passage 13 is located in the middle of the sewage cross section, and the flow passage 13 The upper edge is below the water surface.
  • a biocarrier filler is formed three-dimensionally on each side of each of the longitudinal via partitions 5 to form a biocarrier filler region 7.
  • the surface of the bio-carrier filler can form a biofilm to form a three-dimensional biota of the unit.
  • the three-dimensional biota is composed of dominant bacteria and other bacteria, and can adapt to the processing requirements of complex ecosystems.
  • a space is maintained between the overflow partition 4 and the biocarrier packing area 7 as a buffer zone 6.
  • the buffer zone 6 can create a water condition for environmental transition by means of the buffering action of the digestive juice.
  • the gap between the biocarrier filler region 7 and the bottom wall 3 of the cell body forms a sinking zone.
  • the inspection clearing port 8 is provided to ensure the maintenance;
  • the upper part of the pool body is provided with a venting hole, and the venting hole is connected with an exhaust pipe 11 capable of discharging or collecting gas;
  • the upper portion of the longitudinal body partition plate 5 is provided with a vent hole 12 for communicating with the cell body, and each of the vent holes 12 is located at the top wall 1 ⁇ of the upper portion of the cell body.
  • Figure 4 is a process of increasing the processing unit in series according to the work of the digestion process, and prolonging the process.
  • the longitudinal through-body partition 5 is further divided to further partition the water body to form more unit water bodies, which can be on both sides of the longitudinal through-body partition 5
  • the water space between the two unit flora can separate the unit flora and also provide a clear inspection space.
  • the above sewage treatment tanks can be constructed in the form of reinforced concrete or brick-concrete structures, designed and constructed in accordance with relevant building technical standards. It can also be made of composite materials or reinforced plastics, and is implemented according to the technical standards of the corresponding materials.
  • Example 2 Treatment of sewage by using a sewage treatment tank provided with two longitudinal through-body separators and four groups of packing units
  • the structure of the sewage treatment tank is the same as that shown in Figs. 1, 2, and 3 in the first embodiment.
  • this form of design is used as a small processing facility, more for the treatment of residential sewage, the size of the treatment tank according to the requirements of the scale of sewage treatment, water quality (whether it is fecal confluence or diversion)
  • the effective volume is determined by various factors such as the water supply requirements and the sewage retention time.
  • the size of the monomer treatment tank ranges from an effective volume of several cubic meters to an effective volume of more than one hundred cubic meters.
  • the sewage treatment tank of the present invention is in the form of a buried arrangement.
  • the top wall of the pool body may be level with the ground, or a certain soil layer may be covered on the top wall.
  • the parameters of the structure and specifications of the processing pool will be adjusted as some requirements change.
  • the following is an example of a treatment tank with an effective volume of 25 cubic meters of concrete treatment tank.
  • the treatment tank is buried in the ground.
  • the effective volume of the treatment tank is 25 m 3
  • the elevation of the inlet pipe of the treatment tank is determined according to the elevation of the inlet pipe of the sewage pipe network.
  • the length of the treatment tank is 7.25 M, wherein the wall (side wall 2)
  • the wall thickness of the top wall 1 and the bottom wall 3), the longitudinal bulk partition 5, and the overflow partition wall 4 are both 200, and the clearance length in the pool body is 6.2 m, and the longitudinal through-body partition 5 and the overflow partition wall 4 are pooled.
  • the body is divided into four water bodies, wherein the effective length of the first water body at the inlet end is 2. 5 m, and the effective length of the other three water bodies is 1. 25 in; the width of the treatment pool is 2.
  • the height of the effective water depth or the overflow partition wall 4 is 2.0 m; the height of the bottom of the water inlet from the bottom wall 3 is higher than that of the overflow partition wall 4, and the overflow partition wall
  • the upper edge of 4 is 50 mm above the bottom of the water outlet ;
  • the middle of the longitudinal longitudinal partition 5 is a flow passage 13 which is located in the middle of the flow cross section of the water body, and the clearance height of the flow passage 13 is 500-700 mm ;
  • each side of the longitudinal body partition 5 is provided with a three-dimensional bio-carrier filler, and the bio-filling zone 7 of each unit is rectangular s, the width of the first unit is 1. 0. 8 m, the width is 2. 0 m, the effective height is 1. 8 m.
  • the m. 5 ⁇ The vertical distance between the overflow wall 4 and the side of the two bio-filled areas 7 is 0. 45-0. 65m.
  • the filler filled in the bio-carrier filler region is made of a general-purpose three-dimensional filler, including a three-dimensional elastic filler or a modified three-dimensional elastic filler.
  • the ordinary three-dimensional elastic filler is economical, and the three-dimensional elastic structure is suitable for matrix stereo arrangement and shearing. Cut sewage, so it is preferred to use suspended stereoscopic single filler.
  • the three-dimensional elastic filler is a series of elastic plastic wire membranes which are connected in series with a central rope. The center rope can be tied and fixed on the filler grid.
  • the diameter of the elastic filament membrane of the relatively three-dimensional elastic filler is mainly 10cm and 15cm. And other different specifications.
  • the two ends of the center rope of the three-dimensional elastic filler are respectively tied and fixed on the filler grid.
  • the three-dimensional filler is arranged in a longitudinal and lateral juxtaposed matrix and bound to the grid to form Filled cube area.
  • the grid support is suspended at corresponding positions on both sides of the longitudinal through-body partition 5.
  • Stereoelastic fillers are versatile materials and are produced in most filler manufacturing companies.
  • the sewage treatment tank of the present invention is used for the treatment of sewage contaminated by high-load organic matter, especially domestic sewage.
  • the specifications of the facility are generally determined based on the scale of the treatment of the sewage, the quality of the raw water, and the requirements for the effluent.
  • the treatment tank is operated under a natural working condition and is naturally connected with the sewage pipe network; the water inlet of the treatment tank is connected to the pipe in the direction of the sewage pipe network, and the outlet of the water outlet is connected to the discharge direction of the sewage pipe.
  • the same amount of untreated sewage enters the treatment tank at the inlet, and under the action of hydraulic power, the same amount of treated water after a series of anaerobic treatment is discharged at the water outlet.
  • Each water body has a bio-carrier packing unit.
  • the sewage of the first water unit is pushed into the second water unit, and so on, the sewage of the second unit enters the third unit, and the sewage of the third unit enters the fourth unit.
  • the water in the fourth unit is treated water through a series of digestion treatments, and is discharged from the water outlet.
  • each biological carrier packing unit in turn under the guidance of the water flow.
  • the surface of the biocarrier filler can form a biofilm to form a biological fungus Group, digesting the treated sewage.
  • Different packing units due to changes in water quality nutrients and environmental conditions, have different dominant flora, which can digest different organic substances separately.
  • the treatment object of this treatment pool is mainly the treatment of domestic sewage.
  • the domestic sewage is composed of a variety of complex organic materials, especially domestic sewage containing living manure.
  • the sewage itself carries various biological strains, and the bacteria are in A new dominant flora will be formed during the process of digesting sewage.
  • the surface of the biological carrier filler forms a biofilm enriched with the biological flora, and the formation of the biofilm can be formed by natural formation and artificial assisted formation.
  • Naturally formed biofilms naturally form biofilms and dominant flora during normal work.
  • domestic sewage itself has the bacteria and nutrients needed for cultivating and acclimating the flora.
  • the so-called dominant flora generally refers to the flora with specific processing ability.
  • the dominant flora is formed for specific nutrient substrates and environmental conditions, and is the result of long-term domestication and adaptation.
  • a plurality of sets of water unit or packing unit are connected in series, and the water quality condition gradually changes in different units due to biological action.
  • the dominant flora is the long-term adaptation and domestication of a large number of microbial flora, which gradually form an enzyme system with the characteristics of specific water quality metabolism, which has certain advantages and specificity.
  • the natural biofilm process is relatively long, so it is also possible to take artificially assisted measures, artificially assisted, and from the perspective of environmental conditions, artificial control of pH can be taken, especially in the latter part of the treatment tank.
  • the control of the weakly alkaline environment is achieved by adding alkaline materials. From the perspective of strain-assisted, it is possible to inoculate obligate strains such as the genus Artemis, the genus Ampicococcus, and the genus Arthritis. Manually assisted methods can improve the quality of biofilms and shorten the process.
  • the appropriate sewage retention time can be determined according to the raw water quality of the sewage, the amount of treated water, the effective volume of the treatment tank, and the requirements of the water treatment degree.
  • the domestic sewage has periodic discharge characteristics, so the residence time of the sewage can be set at different times such as 6 hours, 8 hours, 12 hours, 24 hours, etc.
  • Different sewage retention time has different results for sewage treatment scale and effluent water quality, and adapt to different work requirements.
  • the organic sewage is digested and sludge is formed, and on the other hand, since the system is in an anaerobic digestion state, the sludge is digested and decomposed.
  • the amount of the carrier filler is large, the surface area of the biofilm formed is large, so that the material exchange with the external water body after the decomposition of the aged biofilm is facilitated, and the sludge digestion effect is relatively good, so the amount of excess sludge generated is relatively Said less.
  • the pollution of domestic sewage is the most basic and common form of water pollution, and the more it is in economically underdeveloped areas with poor infrastructure, the more serious such pollution.
  • Complex sewage treatment technology restricts the implementation of technology. Therefore, in the process of sewage prevention and control, it is impossible to emphasize one step in place, and it should be gradually improved step by step, and the process technology that is convenient to implement should be sought according to local conditions.
  • the invention utilizes natural conditions to realize sewage treatment.
  • the two ends of the sewage treatment tank are connected to the sewage pipe network, and the treatment process is carried out horizontally, and the sewage flowing through the treatment tank can be digested, no auxiliary measures are needed, and under natural conditions, the hydraulic action formed by the liquid level difference of the water body is operated.
  • the treatment tank can be adapted to local conditions. According to different treatment scales and treatment requirements, the treatment tanks with corresponding treatment capacity and specifications are set in the corresponding suitable geographical locations; the treatment pool adopts construction technology that conforms to the building code, and is easy to popularize and master the application.
  • the water body of the treatment tank is divided into a plurality of unit water bodies, and the unit water body is provided with a bio-carrier filler unit body, so that the treatment system forms a series of biological group units in series.
  • the anaerobic treatment process of sewage is a complex process, the diversity of organic components of sewage, the diversity of biological species involved, the coexistence of multiple biological treatment chains, and the co-production of biological flora.
  • the biochemical reaction products of the previous stage often become the nutrients of the latter biochemical reaction.
  • the biological flora gradually forms the dominant flora adapted to the environmental conditions at this stage.
  • biological carrier fillers are separately set at different stages of the water body, and different water unit units form different flora units, thereby providing the microorganisms with suitable growth environment conditions for adapting to different stages, so that different bacteria groups are at the most It functions in an excellent environment, and the bacteria can be stably operated due to the separation and buffering of water bodies.
  • the pH of the water body changes correspondingly with the product of the biochemical reaction.
  • the participating bacteria are mainly heterotrophic decomposing bacteria and acid-producing bacteria.
  • the final product of biochemical reaction contains organic acids such as butyric acid, propionic acid, acetic acid and formic acid, so the water body is acidic.
  • the treatment tank is provided with an overflow partition wall in the middle of the tank body, and the water body of the treatment tank is divided into two independent water bodies to avoid the water body.
  • the treatment pool has the conditions for improving work efficiency, thereby overcoming and solving the problem of low work efficiency under natural unpowered and energy-free conditions, and relatively efficient work.
  • a large amount of biocarrier filler is provided to form a large proportion of the biofilm surface area, thereby also increasing the specific surface area of the sludge metabolite exchange.
  • the sludge is sufficiently metabolized to produce less excess sludge, and the cost of maintenance of the cleaning is relatively low.
  • the final product of the anaerobic treatment is methane gas, which is a renewable energy source.
  • the treatment tank is provided with an exhaust pipe at the upper part of the tank body to discharge gas or collect and further utilize methane gas.
  • the treatment tank is located underground to reduce the impact on the ground environment.

Abstract

Dispositif de traitement anaérobie d'eaux usées comprenant un réservoir hermétique. Au moins une entrée (9) se trouve sur au moins une paroi latérale du réservoir, et une sortie correspondante (10) se trouve sur la paroi latérale opposée à la paroi latérale comportant l'entrée. La hauteur entre l'entrée (10) et le fond (3) du réservoir est inférieure à celle entre l'entrée (9) et le fond (3) du réservoir. Au moins une paroi débordante (4) se trouve sur le fond (3) du réservoir pour former un canal de débordement entre la paroi de débordement (4) et le haut (1) du réservoir. L'espace du réservoir est divisé en zones de traitement biologique non liées entre elles par la paroi de débordement (4). La hauteur entre l'entrée (9) et le fond (3) est supérieure à celle de la paroi de débordement (4). La hauteur entre la paroi de débordement (4) et le fond (3) est supérieure à celle entre la sortie (10) et le fond (3). Au moins une séparation longitudinale (5) se trouve dans chaque zone de traitement biologique. Un canal d'écoulement (13) d'eaux usées se trouve au milieu de la séparation longitudinale (5), et le matériau soutenant la biomasse se trouve des deux côtés de la séparation longitudinale (5).
PCT/CN2007/000391 2006-04-11 2007-02-05 Dispositif de traitement anaérobie d'eaux usées WO2007115464A1 (fr)

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CNU2006200315394U CN2895402Y (zh) 2006-04-11 2006-04-11 酸碱生态的过程接触消化池
CN200620031539.4 2006-04-11

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CN106045026A (zh) * 2016-05-27 2016-10-26 广西益江环保科技股份有限公司 厌氧‑兼氧上流式反应器垃圾渗滤液的处理方法及设备
CN109231452A (zh) * 2018-11-09 2019-01-18 中冶赛迪技术研究中心有限公司 一种缺氧池流化床生物膜反应器
CN110498505A (zh) * 2019-09-17 2019-11-26 如皋市住房和城乡建设局 分散式无电非药型生活污水处理器
CN110845011A (zh) * 2019-12-17 2020-02-28 清华大学 多介质生物滤池以及分散式污水处理装置
CN111056629A (zh) * 2019-11-01 2020-04-24 湖南景翌湘台环保高新技术开发有限公司 一种abr反应器装置
CN112048432A (zh) * 2020-09-22 2020-12-08 四川光和兴科技有限公司 一种可缩短沼气发酵时间的新型容器
CN117658376A (zh) * 2023-12-26 2024-03-08 无锡百诺可科技有限公司 低维护自充氧过滤装置

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CN106045026A (zh) * 2016-05-27 2016-10-26 广西益江环保科技股份有限公司 厌氧‑兼氧上流式反应器垃圾渗滤液的处理方法及设备
CN109231452A (zh) * 2018-11-09 2019-01-18 中冶赛迪技术研究中心有限公司 一种缺氧池流化床生物膜反应器
CN110498505A (zh) * 2019-09-17 2019-11-26 如皋市住房和城乡建设局 分散式无电非药型生活污水处理器
CN111056629A (zh) * 2019-11-01 2020-04-24 湖南景翌湘台环保高新技术开发有限公司 一种abr反应器装置
CN110845011A (zh) * 2019-12-17 2020-02-28 清华大学 多介质生物滤池以及分散式污水处理装置
CN112048432A (zh) * 2020-09-22 2020-12-08 四川光和兴科技有限公司 一种可缩短沼气发酵时间的新型容器
CN117658376A (zh) * 2023-12-26 2024-03-08 无锡百诺可科技有限公司 低维护自充氧过滤装置

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