CN112978917A - HEST series high-efficiency energy-saving domestic sewage treatment device - Google Patents
HEST series high-efficiency energy-saving domestic sewage treatment device Download PDFInfo
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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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
- C02F3/02—Aerobic processes
- C02F3/08—Aerobic processes using moving contact bodies
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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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/109—Characterized by the shape
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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
- C02F7/00—Aeration of stretches of water
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention designs a novel HEST-series efficient energy-saving domestic sewage treatment device, belonging to the field of resources and environment. The device aims at solving the problems of high energy consumption, high manufacturing cost, short service life, strong pertinence and the like of the traditional domestic sewage treatment process device. The invention provides a novel HEST high-efficiency energy-saving domestic sewage treatment device which comprises: multi-stage biochemistry (A) with a micro-power, ultra-low energy consumption aeration, reflux and precipitation integrated device as a core without a reflux pump, an MBR membrane and the like2O3) The novel domestic sewage treatment process adopts the novel packing of the self-rotating biological ball, and achieves the aim of removing ammonia nitrogen and phosphorusAnd suspended matters and the like, the aim of saving energy is fulfilled, and the main effluent indexes (COD/BOD/ammonia nitrogen/suspended matters and the like) reach the first-level A discharge standard of the national discharge Standard of pollutants for municipal wastewater treatment plants.
Description
Technical Field
The invention designs a novel HEST-series efficient energy-saving domestic sewage treatment device, belonging to the field of resources and environment.
Background
The main technical route of the existing domestic sewage treatment equipment is as follows: AO method, A2O method, AO2Method + MBR method, etc., conventional process method and process partsThe invention is designed aiming at the defects of the process method and the components in the traditional domestic sewage treatment equipment, and firstly, the advantages and the disadvantages of the process and the components of the traditional domestic sewage treatment equipment are described and explained in detail.
The A/O method has the advantages that the A/O method has certain nitrogen and phosphorus removal functions besides degrading organic pollutants, and uses anaerobic hydrolysis technology as pretreatment of activated sludge, so that the A/O method is an improved activated sludge method. In the A/O process, a front-section anoxic section and a rear-section aerobic section are connected in series, the DO of the A section is not more than 0.2mg/L, and the DO of the O section = 2-4 mg/L. The heterotrophic bacteria hydrolyze starch, fiber, carbohydrate and other suspended pollutants and soluble organic matters in the sewage into organic acid at an anoxic section, so that macromolecular organic matters are decomposed into micromolecular organic matters, insoluble organic matters are converted into soluble organic matters, and when products after anoxic hydrolysis enter an aerobic tank for aerobic treatment, the biodegradability and the oxygen efficiency of the sewage can be improved; in the anoxic zone, heterotrophic bacteria ammoniate contaminants such as protein and fat (N in the organic chain or amino groups in amino acids) to release ammonia (NH)3、NH4(+) under sufficient oxygen supply conditions, nitration of autotrophic bacteria to convert NH3-N（NH4And (+) is oxidized into NO3-, and returns to the A pool through reflux control, under the anoxic condition, the denitrification of the heterotrophic bacteria reduces NO 3-into molecular nitrogen (N2) to complete the ecological cycle of C, N, O, thereby realizing the harmless treatment of the sewage.
The process has the advantages that:
(1) the efficiency is high, and the process has higher removal effect on organic matters, ammonia nitrogen and the like in the wastewater. When the total retention time is more than 54 hours, the COD value of the effluent after biological denitrification is reduced to be below 100mg/L through coagulating sedimentation, other indexes also reach the discharge standard, and the total nitrogen removal rate is more than 70%;
(2) simple process, low investment and low operation cost. The process takes organic matters in the wastewater as a carbon source for denitrification, so expensive carbon sources such as methanol and the like do not need to be added;
(3) anoxic denitrificationThe process has high pollutant degrading efficiency. Such as COD and BOD5And the removal rate of SCN-in the anoxic section is 60%, 30% and 50%, and the removal rate of organic matters is 30%, so that the denitrification reaction is the most economical energy-saving degradation process;
(4) the volume load is high. Because the nitrification stage adopts intensified biochemistry and the denitrification stage adopts a membrane technology of high-concentration sludge, the sludge concentration of nitrification and denitrification is effectively improved, and the device has higher volume load;
(5) the anoxic/aerobic process has strong load impact resistance. When the quality of the inlet water fluctuates greatly or the concentration of pollutants is high, the process can maintain normal operation, so the operation and management are simple. Through the comparison of the above processes, it can be seen that the biological denitrification process is used for denitrifying and degrading organic matters such as COD.
The process has the following defects:
(1) because an independent sludge reflux system is not provided, sludge with unique functions cannot be cultured, and the degradation rate of substances difficult to degrade is low;
(2) in order to improve the denitrification efficiency, the internal circulation ratio must be increased, thereby increasing the operation cost. In addition, the internal circulation liquid comes from the aeration tank and contains a certain DO, so that the A section is difficult to maintain an ideal anoxic state, the denitrification effect is influenced, and the denitrification rate is difficult to reach 90%.
A2The O process (AAO process and AAO method) is a common secondary sewage treatment process, has the effect of synchronous nitrogen and phosphorus removal, is an A2/O process (AAO process and AAO method), is a common secondary sewage treatment process, has the effect of synchronous nitrogen and phosphorus removal, can be used for secondary sewage treatment or tertiary sewage treatment, can be reused as reclaimed water after subsequent advanced treatment, and has good nitrogen and phosphorus removal effects. The sewage and the return sludge enter an anaerobic tank (DO) firstly<0.2mg/L), and after anaerobic decomposition for a certain time (1-2 h), removing part of BOD, converting part of nitrogen-containing compounds into N2 (denitrification) to be released, and releasing phosphorus from phosphorus accumulating microorganisms (phosphorus accumulating bacteria and the like) in the returned sludge to meet the requirement of bacteria on phosphorus. Then the sewage flows into an anoxic tank (DO)<=0.5mg/L), the denitrifying bacteria in the pond are not found in the sewageDecomposed carbon-containing organic matters are used as a carbon source, and nitrate radicals which are returned in the aerobic tank through internal circulation are reduced into N2And released. Then the sewage flows into an aerobic tank (DO, 2-4mg/L), and NH in the water3N (ammonia nitrogen) is subjected to nitration reaction to generate nitrate radical, organic matters in water are oxidized and decomposed to supply energy to phosphorus-absorbing microorganisms, the microorganisms absorb phosphorus from the water, the phosphorus enters cell tissues and is enriched in the microorganisms, and the phosphorus-rich sludge is discharged from the system after precipitation and separation. A. the2The anaerobic, anoxic and aerobic processes in the/O process can be operated in different equipment or can be finished in different parts of the same equipment. For example, in the oxidation ditch process, the oxygen supply amount of the rotary brush can be controlled to enable each section to be in an anaerobic state, an anoxic state and an aerobic state respectively. The device can also be operated intermittently in different states.
The process has the advantages that:
(1) three different environmental conditions of anaerobic, anoxic and aerobic are organically matched with microbial flora species, so that the biological organic fertilizer has the functions of removing organic matters, nitrogen and phosphorus;
(2) in the process for removing nitrogen, phosphorus and organic matters simultaneously, the process flow is the simplest, and the total hydraulic retention time is shorter than that of other similar processes;
(3) under the alternate operation of anaerobic, anoxic and aerobic, the filamentous fungi can not propagate in a large quantity, the SVI is generally less than 100, and the sludge bulking can not occur;
(4) the sludge settleability is better.
The disadvantages are as follows:
(1) the phosphorus content in the sludge is high, generally more than 2.5 percent, so the phosphorus removal is mainly realized by sludge discharge, and the phosphorus removal effect is difficult to improve because the sludge is increased to a certain extent and is difficult to improve, particularly when the P/BOD value is high;
(2) the denitrification effect is difficult to be further improved, and the internal circulation amount is generally limited to 2Q and is not suitable to be too high.
MBR method MBR sewage treatment, it is a common mode of modern sewage treatment, it adopts Membrane Bioreactor (Membrane Bioreactor, abbreviated as MBR) technology to be a new technology that the biological treatment technique combines with Membrane separation technique, has replaced the secondary sedimentation tank in the traditional craft, it can carry on the solid-liquid separation high-efficiently, get the stable reclaimed water used directly, MBR sewage treatment, it is a common mode of modern sewage treatment, it adopts Membrane Bioreactor (Membrane Bioreactor, abbreviated as MBR) technology to be a new technology that the biological treatment technique combines with Membrane separation technique, replace the secondary sedimentation tank in the traditional craft, it can carry on the solid-liquid separation high-efficiently, get the stable reclaimed water used directly, can maintain the high-concentration microorganism biomass in the biological tank, the process is few in excess sludge, remove ammonia nitrogen very effectively, effluent suspended solid and turbidity are close to zero, bacterium and virus are removed by a wide margin, the occupied area is small. The technological process includes the steps of treating sewage in a regulating tank with a grating, pumping the sewage into a bioreactor with a lift pump, starting an aerator with a PLC controller to oxygenate, treating the effluent from the bioreactor with a membrane separation unit with a circulating pump, returning the concentrated water to the regulating tank, and treating the water after membrane separation in a reclaimed water storage tank after chlorination disinfection (sodium hypochlorite, bleaching powder and chlorine tablets) with a fast mixing method. The backwashing pump utilizes the treated water in the cleaning tank to backwash the membrane treatment equipment, and the backwashing sewage returns to the regulating tank. The opening and closing of the lift pump are controlled by the water level in the bioreactor. The filtering operation and the back flushing operation of the membrane unit can be automatically or manually controlled. When the membrane unit needs chemical cleaning operation, the water inlet valve and the sewage circulating valve are closed, the medicine washing valve and the medicine circulating valve are opened, and the medicine circulating pump is started to perform the chemical cleaning operation.
MBR (membrane bioreactor) process advantages:
(1) can effectively separate solid and liquid, and separate suspended substances, colloidal substances, microbial flora lost by biological units and purified water in the wastewater. The separation process is simple, the occupied area is small, the effluent quality is good, and the effluent can be recycled without three-stage treatment;
(2) the biomass in the biological treatment unit can be maintained at high concentration, the volume load is greatly improved, and meanwhile, the high efficiency of membrane separation greatly shortens the hydraulic retention time of the treatment unit and correspondingly reduces the occupied area of the bioreactor;
(3) the loss of various microbial floras can be prevented, which is beneficial to the growth of bacteria (nitrobacteria and the like) with slow growth speed, thereby leading various metabolic processes in the system to be carried out smoothly;
(4) the retention time of some macromolecular degradation-resistant organic matters is prolonged, which is beneficial to the decomposition of the macromolecular degradation-resistant organic matters;
(5) the membrane treatment technology is the same as other filtration and separation technologies, in the long-term operation process, the membrane is blocked as a filter medium, the effective back washing and chemical cleaning of the membrane gradually reduced by the water passing operation time can slow down the reduction of the membrane flux, and the effective service life of an MBR system is maintained;
the disadvantages are as follows:
(1) operation, maintenance and maintenance need to be carried out by relative professionals, and if no professional is suitable for adopting an MBR mode;
(2) the operating cost of the MBR membrane is high;
(3) the manufacturing cost is high;
(4) the service life of the membrane is short, and is generally 3-5 years.
The traditional aeration component needs an aeration fan with higher pressure, which causes high energy consumption of the fan.
The traditional backflow mode generally adopts a backflow pump as power to perform backflow, and energy consumption is high.
The traditional process method and the current material situation are the problems of high energy consumption, high manufacturing cost, short service life, strong process pertinence and the like, and the invention is carried out aiming at the problems.
Disclosure of Invention
The invention aims at the problems in the prior art and provides a novel HEST high-efficiency energy-saving domestic sewage treatment device. The novel living equipment cancels a reflux pump, an MBR membrane and the like, adopts new processes, materials and devices, achieves the aims of removing ammonia nitrogen, phosphorus, suspended matters and the like, achieves the aim of saving energy, and ensures that main indexes of sewage (such as COD/BOD/ammonia nitrogen/total phosphorus/suspended matters and the like) reach the discharge standard of national pollutant discharge standard of urban sewage treatment plants GB18918-2002 first-level A.
In order to achieve the purpose, the invention adopts the technical scheme that: a multi-cavity structure and micro-power, ultra-low energy consumption aeration, reflux and sedimentation integrated device which utilize HEST series devices,realize multi-stage biochemistry (A)2O3) The process aims are as follows: the method adopts a nano microbubble aeration material, abandons the traditional high-energy-consumption fan and other equipment, and adopts an ultra-low energy-consumption and micro-power air pump; the method is characterized in that the method is in a porous structure with an inner layer and an outer layer, the outer layer porous sphere is used as a supporting mechanism, the inner layer porous sphere is filled with the filler and can be suspended in water, and the inner layer sphere is provided with a novel filler capable of rotating automatically under the action of external force such as micro bubbles and water flow, so that the problems that the traditional filler fixing surface is impacted by water flow and air bubbles, the stress and the contact of each surface with oxygen are not uniform, the distribution and the quantity of biochemical bacteria are not uniform are safely solved, the quantity of biochemical bacteria is increased to a great extent, and the biochemical effect is improved; porous self-rotating suspension ball fillers are filled in the process cavity, a micro-power ultralow-energy-consumption aeration device and a reflux system are adopted, ascending micro bubbles generated by the aeration system are used as self-rotation power, the self-rotating biological balls are biological units of biochemical fungus carriers, the microbial fungi are stable and large in quantity, the ascending micro bubbles generated by the aeration system are used as self-rotation power, the biochemical fungi attached to the suspension balls are fully contacted with sewage through self-rotation, all-dimensional treatment is performed on organic matters in the sewage for efficient degradation and the like, and the generated sludge amount is small; under the action of rotating force and the like, a small amount of generated sludge falls off instantly, so that the adhesive force of biochemical bacteria is further enhanced, the stability of microbial bacteria is enhanced, and the process effect is further improved; the method comprises the steps of utilizing an ultralow-energy-consumption aeration air source as a pneumatic power reflux device for power, carrying out process reflux on nitrifying liquid and activated sludge, further enhancing the biochemical effect of the process, reducing the sludge production amount, reducing the load of sludge which must be precipitated in a precipitation process cavity, and enhancing the precipitation effect of a precipitation tank in unit volume. The method is characterized in that the traditional backflow is omitted and a backflow pump is used for backflow, so that the aims of energy conservation, device miniaturization and system simplification are achieved, the cost is further reduced, and the sewage treatment effect of the process system is further improved.
The invention has the beneficial effects that:
1) an ultra-low energy consumption aeration, reflux and sedimentation integrated device is adopted, and the energy consumption of the same domestic sewage treatment device is about 20 percent of that of the traditional power domestic sewage treatment equipment;
2) the ultra-low energy consumption micro-power nano aeration material and the device are adopted to generate 360-degree omnibearing continuous micro bubbles which are not only used as an oxygen source of bacteria, but also used as self-rotation power of the porous rotating biological ball filler, so that oxygen is fully contacted with biochemical bacteria attached to the porous rotating biological ball filler, the oxygen supply effect is increased, the energy consumption is saved, the number of the biochemical bacteria is increased, the propagation speed is increased, and the process biochemical effect is further improved;
3) the method adopts homologous gas provided by the high-efficiency energy-saving micro-power aeration fan as a power source (realizes the synchronization of aeration and backflow and avoids the complexity of automatic control design), and utilizes a stripping backflow device with a unique structure to perform the backflow of nitrifying liquid and sludge, and is characterized in that the backflow of a backflow pump required by the traditional backflow is saved, thereby achieving the aims of energy conservation, device miniaturization and system simplification;
4) the MBR membrane is cancelled, and a 2-stage precipitation and porous self-rotating biological ball packing mode is adopted. The operation cost is effectively reduced;
5) the unique self-rotating biological ball filler is adopted, the attachment surface area of biochemical bacterial colonies is increased, the number of bacterial colonies in unit volume is increased, the timeliness of oxygen supply of the biochemical bacterial colonies is improved, the activity of the biochemical bacterial colonies is enhanced, the survival time of the biochemical bacterial colonies is effectively prolonged, the sludge production is effectively reduced, and the oxygen utilization efficiency is improved. The density and activity of the flora are improved.
Drawings
FIG. 1 is a schematic diagram of: HEST series high-efficiency energy-saving domestic sewage treatment device.
In fig. 1: the HEST series high-efficiency energy-saving domestic sewage treatment device is totally divided into 11 parts: respectively comprises a water inlet pipe 1, a primary sedimentation tank 2, an anaerobic tank 3 (A1 tank), a facultative tank 4 (A2 tank), an aerobic tank 5 (O1 tank), an aerobic tank 6 (O2 tank), an aerobic tank 7 (O3 tank), a secondary sedimentation tank 8, a water outlet pipe 9 and an integrated device 10 for ultra-low energy consumption aeration, reflux and sedimentation, and is characterized in that: using multiple chambersA structure obtained by subjecting the novel domestic sewage treatment process A according to claim 2 to2O3The device is perfectly combined with the ultralow energy consumption aeration, reflux and precipitation integrated device in claim 3, is highly integrated in design and manufacture, meets the treatment requirement of standard discharge standard of domestic sewage, realizes the high efficiency and stability of domestic sewage treatment, realizes ultralow consumption of power and energy, and achieves the aim of energy conservation.
FIG. 2 is a diagram of: a novel domestic sewage treatment process.
In fig. 2: a novel domestic sewage treatment process flow is as follows: the method comprises the following steps of 1, automatically flowing (domestic sewage) into a2 (primary sedimentation tank), automatically flowing into a 3 (anaerobic tank) through primary sedimentation, carrying out primary anaerobic reaction, preliminarily decomposing organic matters, then entering a 4 (anoxic tank), thoroughly decomposing the preliminarily decomposed organic matters after deep anaerobic reaction, automatically flowing into a 5 (aerobic tank I), preliminarily degrading and removing the decomposed organic matters through aerobic reaction under the action of an ultralow-energy aeration, reflux and sedimentation integrated device, automatically flowing into a 6 (aerobic tank II), further degrading and removing the decomposed organic matters, automatically flowing into a 7 (aerobic tank III), thoroughly degrading and removing the decomposed organic matters, and simultaneously carrying out process reflux on nitrified liquid through a 12 (nitrified liquid reflux device) by utilizing an aerodynamic force reflux device taking an ultralow-energy aeration gas source as power, and finally, the wastewater enters a secondary sedimentation tank 8, suspended matters in the water are precipitated, and clear water flows out to a drain pipe 9 through overflow and is discharged after reaching the standard. Meanwhile, the pneumatic power reflux device which takes the ultralow energy consumption aeration air source as power carries out process reflux on the activated sludge through the 11 (activated sludge reflux device), so that the biochemical effect of the process is further enhanced, the quantity of the generated sludge is effectively reduced, and the load of the precipitated sludge in the precipitation process cavity is reduced.
1. With A2O3A combined process of ultra-low energy consumption aeration, reflux and precipitation integrated device technology; the method is characterized in that: the ultra-low energy consumption aeration, reflux and sedimentation integrated device according to claim 3 is characterized in that: with A2O3The novel combined process is perfectly combined with the MBR membrane to form a novel domestic sewage treatment process, and COD and BOD can be removed by using a high-cost MBR membrane and the like5And SS, ammonia nitrogen, phosphorus and other pollutants in domestic sewage, and achieves the purposes of low process cost, simple manufacture, reliable operation and simple operation.
2. The whole set of device process is carried out under the action of the ultralow-energy-consumption aeration, backflow and sedimentation integrated device required by claim 3, the process removal effect is good, a 360-degree all-directional degradation environment for organic matters is formed inside, the efficient and thorough degradation of the organic matters in the domestic sewage is realized, the ultralow-energy-consumption aeration air source is reused as a power aerodynamic force backflow device, the nitrification liquid and the activated sludge are subjected to process backflow, the process biochemical effect is further enhanced, the sludge production quantity is effectively reduced, the load of the sedimentation sludge in the sedimentation process cavity is reduced, and the sedimentation effect of the sedimentation tank in unit volume is enhanced.
The process flow of fig. 2 is characterized in that: domestic sewage is through the septic tank processing back entering preliminary sedimentation tank that flows automatically, get into the anaerobism pond after preliminary sedimentation, through the anaerobic reaction, get into the oxygen deficiency pond after tentatively decomposing the organic matter, organic matter after tentatively decomposing is through the deep reaction after, thoroughly decompose, flow automatically afterwards and get into good oxygen pond 1, through the organic matter after will decomposing tentatively degrading, get rid of, get into the organic matter after good oxygen pond 2 will decompose and further degrade later, get rid of, get into good oxygen pond 3 through flowing automatically at last, organic matter after will decomposing carries out thorough degradation, get rid of, get into the sedimentation tank at last, the aquatic suspended solid is through precipitating the back, clear water passes through overflow arrangement and flows, discharge to reach standard. The whole process is carried out under the action of the ultralow-energy-consumption aeration, backflow and sedimentation integrated device as claimed in claim 3, the process removal effect is good, a 360-degree all-directional degradation environment for organic matters is formed inside, high-efficiency and thorough degradation of the organic matters in the domestic sewage is realized, the ultralow-energy-consumption aeration air source is recycled as a dynamic aerodynamic force backflow device, the nitrification liquid and the activated sludge are subjected to process backflow, the process biochemical effect is further enhanced, the sludge production quantity is effectively reduced, the load of the sedimentation sludge in the sedimentation process cavity is reduced, and the sedimentation effect of the sedimentation tank in unit volume is enhanced.
FIG. 3 is a diagram of: schematic diagram of an integrated device for aeration, reflux and precipitation with ultra-low energy consumption.
The ultra-low energy consumption aeration, reflux and sedimentation integrated device is highly integrated by 11 parts through design: 1. the system comprises a water inlet pipe, a backflow pipeline, an O1 pool air inlet pipeline, a 4O 2 pool air inlet pipeline, a 5O 3 pool air inlet pipeline, a 6 outlet pipe, a 7 backflow air inlet pipe, 8 self-rotating biological filler, 9 nanometer micro-bubble aerator, 10 sedimentation tank spiral filler and 11 super energy-saving air pump, wherein 12 primary sedimentation tank, 13 anaerobic tank (A1 pool), 14 facultative tank (A2 pool), 15 aerobic tank I (O1 pool), 16 aerobic tank II (O2 pool), 17 aerobic tank III (O3 pool) and 18 secondary sedimentation tank are 7 process chambers of an HEST series high-efficiency energy-saving domestic sewage treatment device.
The ultra-low energy consumption aeration, reflux and precipitation integrated device is characterized in that:
(1) the integrated ultra-low energy consumption air pump is used as the power of the whole set of device and system, and is characterized in that the ultra-low energy consumption air pump is selected and used as the power source of the whole set of device;
(2) the low-energy-consumption nanometer microbubble aeration element is integrally adapted and meets the requirements of the whole set of system, is characterized by having very low requirement on the pressure of an air source, can generate extremely tiny continuous bubbles in 360 degrees in an all-round way, not only can be used as an oxygen source of fungus, but also can be used as the self-rotating force of a porous rotating biological ball filler, provides sufficient oxygen for biochemical bacteria, greatly lightens the impact of air flow on the biochemical fungus of a biological unit, and greatly improves the sewage treatment efficiency of an aerobic biological filter. (ii) a
(3) The porous self-rotating biological ball filler is characterized in that the micro-bubbles generated by aeration are used as a power source, and the porous self-rotating suspended biological ball filler has the advantages of porosity, self-rotation and suspension;
(4) the sludge falling and gravity sedimentation combined precipitator is integrated by taking the rotating force of the self-rotating suspended biological balls as power, and is characterized in that the sludge falling and gravity sedimentation combined precipitator is integrated by taking the rotating force of the self-rotating suspended biological balls as power;
(5) the integrated reflux device taking the ultra-low energy consumption aeration gas source as power is characterized in that the ultra-low energy consumption aeration homologous gas source is taken as power, and the synchronization of the process is realized.
The invention of the integrated device for aeration, reflux and precipitation with ultra-low energy consumption solves various problems of the traditional form:
the device has the advantages of realizing the minimization of volume, the simplification of structure, the simplification of manufacture, the convenience of maintenance, the minimization of cost, the minimization of energy consumption, the thoroughness of treatment effect, the high efficiency of treatment efficiency and the stabilization of system operation.
FIG. 4 is a diagram of: self-rotating biological ball filler structure diagram.
In fig. 4: the self-rotating biological ball filler is divided into 4 parts, namely 1 outer layer supporting ball body, 2 inner layer porous self-rotating ball body, 3 self-rotating central shaft and 4 filler. The method is characterized in that: the self-rotating biological ball filler is an inner-outer double-layer porous ball body, and the outer ball body serves as a supporting mechanism of the whole filler to provide structural support for rotation of the inner-layer ball body. The inner ball body is used as a filler filling container and a self-rotating mechanism, rising micro bubbles generated by the aeration system are used as self-rotation rotating power, biochemical fungi attached to the inner filler are fully contacted with sewage and oxygen through self-rotation, the number of the biochemical fungi is increased, the propagation of the biochemical fungi and the digestion of organic matters are accelerated, the self-rotation realizes the comprehensive efficient degradation of the organic matters in the sewage, and the amount of sludge generated is small; under the action of rotating force and the like, a small amount of generated sludge immediately falls off, the adhesive force of biochemical bacteria is further enhanced, the stability of microbial bacteria is enhanced, and the process effect is further improved.
Detailed Description
FIG. 1 shows a specific embodiment of an HEST-series high-efficiency energy-saving domestic sewage treatment device: a novel domestic sewage treatment process A as claimed in claim 2, wherein a multi-cavity structural body with high corrosion resistance and high bearing strength is adopted for design and manufacture2O3The ultra-low energy consumption aeration, reflux and precipitation integrated device is perfectly combined with the ultra-low energy consumption aeration, reflux and precipitation integrated device of claim 3, and has a highly integrated design,The internal process pipeline is simple, the operation and the maintenance are convenient, the effluent meets the treatment requirement of standard discharge standard of domestic sewage, the high efficiency and the stability of domestic sewage treatment are realized, the ultralow consumption of power and energy is realized, and the purpose of energy conservation is achieved.
FIG. 2 is a process embodiment of a novel domestic sewage treatment device: (1) with A2O3A combined process of ultra-low energy consumption aeration, reflux and precipitation integrated device technology; the method is characterized in that: the ultra-low energy consumption aeration, reflux and precipitation integrated device of claim 3 is used for carrying out A (anaerobic) and O (aerobic) processes in the prior art2O3The novel combination of the two is perfectly designed and combined to form a novel domestic sewage treatment process, and the COD and the BOD can be thoroughly removed by using the traditional high-cost MBR membrane and the like with the lowest pool cost5The effects of pollutants in domestic sewage such as SS, ammonia nitrogen, phosphorus and the like are achieved, and the purposes of reliable process, low operation cost, low manufacturing cost, simple mechanism, reliable operation and simple operation are achieved; (2) the whole set of process is carried out under the action of the ultralow-energy-consumption aeration, reflux and sedimentation integrated device required by claim 3, the process removal effect is good, a 360-degree all-directional degradation environment for organic matters is formed inside, the efficient and thorough degradation of the organic matters in the domestic sewage is realized, the ultralow-energy-consumption aeration air source is reused as a power aerodynamic force reflux device, the nitrification liquid and the activated sludge are subjected to process reflux, the process biochemical effect is further enhanced, the quantity of generated sludge is effectively reduced, the load of the precipitated sludge in the sedimentation process cavity is reduced, and the sedimentation effect of the sedimentation tank in unit volume is enhanced.
FIG. 3 shows a specific embodiment of an integrated device for aeration, reflux and sedimentation with ultra-low energy consumption: the ultra-low energy consumption aeration, reflux and sedimentation integrated device is highly integrated by 11 parts through combined design:
1) the power integration, the ultra low energy consumption air pump is regarded as the power of the complete set of apparatus and system, characterized by selecting and using the ultra low energy consumption air pump, and as the power source of the complete set of apparatus;
2) the aeration element is integrated, and the low-energy consumption nanometer microbubble aeration element is suitable for and meets the requirements of the whole system in an integrated manner, and is characterized in that the requirement on the pressure of an air source is very low, extremely tiny continuous bubbles can be generated in a 360-degree all-around manner, the aeration element not only serves as an oxygen source of bacteria, but also serves as a spinning rotating force of a porous rotating biological ball filler, sufficient oxygen is provided for biochemical bacteria, the impact of air flow on biochemical bacteria of a biological unit is relieved to a great extent, and the sewage treatment efficiency of the aerobic biofilter is improved to a great extent; 3) the integration of the filler, integrate and regard microbubble that the aeration produces as the porous spin biological ball filler of the power supply, characterized by that regard microbubble that the aeration produces as the power supply, and have porous, spin, suspending filler by oneself;
4) the sedimentation device is integrated, and integrates a sludge falling and gravity sedimentation combined precipitator taking the rotating force of the self-rotating suspended biological ball as power;
5) the integrated reflux device integrates the same air source for ultra-low energy consumption aeration as power, and is characterized in that the same air source for ultra-low energy consumption aeration is used as power, so that the synchronization of the process is realized, the miniaturization of the volume, the simplification of the structure, the simplification of the manufacture, the convenience of the maintenance, the minimization of the cost, the minimization of the energy consumption, the thoroughness of the treatment effect, the high efficiency of the treatment efficiency and the stabilization of the system operation are realized.
FIG. 4 shows an embodiment of the spin-spin bio-ball packing: the self-rotating biological ball filler is made of corrosion-resistant and light-weight high polymer materials and is formed by extrusion molding through a die and the like, an outer porous ball body is used as a supporting ball body, inner porous self-rotating ball bodies are connected together through a self-rotating central shaft, and the filler is filled inside the inner porous self-rotating ball body; the self-rotating biological ball filler is an inner-outer double-layer porous ball body, and the outer ball body serves as a supporting mechanism of the whole filler to provide structural support for rotation of the inner-layer ball body. The inner ball body is used as a filler filling container and a self-rotating mechanism, rising micro bubbles generated by the aeration system are used as self-rotation rotating power, biochemical fungi attached to the inner filler are fully contacted with sewage and oxygen through self-rotation, the number of the biochemical fungi is increased, the propagation of the biochemical fungi and the digestion of organic matters are accelerated, the self-rotation realizes the comprehensive efficient degradation of the organic matters in the sewage, and the amount of sludge generated is small; under the action of rotating force and the like, a small amount of generated sludge immediately falls off, the adhesive force of biochemical bacteria is further enhanced, the stability of the microbial bacteria is enhanced, and further the process effect is improved.
Claims (4)
1. A novel HEST-series high-efficiency energy-saving domestic sewage treatment device comprises the appearance and the internal design of a device body and the design of an ultralow-energy-consumption aeration, reflux and sedimentation integrated device, and is characterized in that a multi-cavity structure of the device is adopted, and the novel domestic sewage treatment process A disclosed in claim 2 is adopted2O3And the ultra-low energy consumption aeration, reflux and precipitation integrated device as claimed in claim 3 are perfectly designed and combined, so that the final treatment effect is achieved, the high efficiency of domestic sewage treatment is realized, the ultra-low consumption of power and energy is realized, and the purpose of energy conservation is achieved.
2. A novel domestic sewage treatment process is characterized in that: 1) with A2O3A combined process of ultra-low energy consumption aeration, reflux and precipitation integrated device technology; the method is characterized in that: the ultra-low energy consumption aeration, reflux and sedimentation integrated device and technology according to claim 3 are adopted A2O3The novel combined process is perfectly combined with the MBR membrane to form a novel domestic sewage treatment process, and COD and BOD can be removed by using a high-cost MBR membrane and the like5The effects of pollutants in domestic sewage such as SS, ammonia nitrogen, phosphorus and the like are achieved, and the purposes of low process cost, simple manufacture, reliable operation and simple operation are achieved; 2) the whole set of process is carried out under the action of the ultralow-energy-consumption aeration, reflux and precipitation integrated device required by claim 3, the process removal effect is good, a 360-degree all-directional degradation environment for organic matters is formed inside the process, the organic matters in the domestic sewage are efficiently and thoroughly degraded, and the ultralow-energy-consumption aeration air source is reused as the aerodynamic force of the powerThe reflux device carries out process reflux on the nitrifying liquid and the activated sludge, further enhances the biochemical effect of the process, effectively reduces the quantity of the generated sludge, reduces the load of the precipitated sludge in the precipitation process cavity and enhances the precipitation effect of the precipitation tank in unit volume.
3. An ultra-low energy consumption aeration, reflux and precipitation integrated device, which is adopted in a novel HEST series high-efficiency energy-saving domestic sewage treatment device according to claim 1 and a novel domestic sewage treatment process according to claim 2, and is characterized in that:
1) the integrated ultra-low energy consumption air pump is used as the power of the whole set of device and system, and is characterized in that the ultra-low energy consumption air pump is selected and used as the power source of the whole set of device;
2) the low-energy consumption nanometer microbubble aeration element is suitable for and meets the requirements of the whole system in an integrated manner, and is characterized in that the requirement on the pressure of an air source is very low, and extremely tiny continuous bubbles can be generated in a 360-degree all-around manner;
3) the porous self-rotating biological ball filler is characterized in that the micro-bubbles generated by aeration are used as a power source, and the porous self-rotating suspended biological ball filler has the advantages of porosity, self-rotation and suspension;
4) the sludge falling and gravity sedimentation combined precipitator is integrated by taking the rotating force of the self-rotating suspended biological balls as power, and is characterized in that the sludge falling and gravity sedimentation combined precipitator is integrated by taking the rotating force of the self-rotating suspended biological balls as power;
(5) the integrated backflow device takes the ultra-low energy consumption aeration air source as power and is characterized in that the ultra-low energy consumption aeration air source is taken as the backflow device of the power.
4. The self-rotating biological ball filler is characterized in that the self-rotating biological ball filler is an internal and external double-layer porous ball body and is divided into 4 parts: 1) an outer porous sphere, 2) an inner self-transmission porous sphere, 3) a self-transmission central shaft, and 4) internal filler; outside spheroid provides structural support for the rotation of inlayer spheroid as whole supporting mechanism who packs, and inside spheroid fills container and autogyration mechanism as packing, and the rotatory power of self rotation is done to the microbubble that rises that produces through aeration systems, reaches the rotatory novel filler of self to can suspend in aqueous, and inlayer spheroid possesses the novel filler that can autogyration under the exogenic action such as microbubble, rivers.
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