CN211035386U - Aeration biological activity adsorption fluidized bed - Google Patents
Aeration biological activity adsorption fluidized bed Download PDFInfo
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- CN211035386U CN211035386U CN201922022842.8U CN201922022842U CN211035386U CN 211035386 U CN211035386 U CN 211035386U CN 201922022842 U CN201922022842 U CN 201922022842U CN 211035386 U CN211035386 U CN 211035386U
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Abstract
The application belongs to the technical field of advanced sewage treatment, and particularly relates to an aeration biological activity adsorption fluidized bed. The whole fluidized bed is an open T-shaped tank body structure with edges arranged on the periphery, and specifically comprises a water distribution and gas distribution area positioned at the T-shaped tail end and used for water inlet, an aeration suspension fluidization area positioned at the T-shaped middle part and a water outlet area positioned at the T-shaped transverse end and used for water outlet. The fluidized bed provided by the application can save frequent back washing steps, and the operation mode is continuous operation. In the operation process, the lower water inlet gas has certain ascending flow velocity, so that the filler carrier layer is in a suspension fluidization state. In the sewage treatment process, the physical function of filtration and adsorption of the activated carbon/activated coke is utilized, the activated carbon/activated coke is also used as a microbial strain adhesion carrier to endow the microbial strain adhesion carrier with the function of biodegradation of organic pollutants, and the activated carbon/activated coke has nitrification and denitrification functions by controlling dissolved oxygen and matching with a proper amount of supplementary external carbon sources, so that the sewage treatment effect can be further improved.
Description
Technical Field
The application belongs to the technical field of advanced sewage treatment, and particularly relates to an aeration biological activity adsorption fluidized bed.
Background
Aeration biological treatment is one of the commonly used sewage treatment processes, and is mainly applied to various structures of pool bodies or various 'bed type' complete equipment in the stages of sewage biochemical treatment and advanced treatment. The activated carbon adsorption filter tank is used as a common process in the advanced sewage treatment stage, and has wide application in the fields of advanced sewage treatment, upgrading and reclaimed water recycling. The tank structure of the conventional activated carbon adsorption filter tank is in a fixed bed filtration and adsorption mode with water inlet at the upper part and water outlet at the lower part, and the tank structure needs to be matched with a backwashing water pump and a backwashing fan to periodically perform backwashing washing on the activated carbon filter layer so as to avoid the phenomena of hardening, blocking, cross flow and the like of the activated carbon filter layer, thereby ensuring the filtration and adsorption effects.
In the prior art, the conventional tank-type structure belongs to a pressure flow filtration mode in the operation process, wherein the filling filter material is in a closely-packed and stacked state in the tank body, although periodic back washing exists, the treated water quality is sewage, more water pollutants and poorer water quality exist, and along with the increase of the sewage treatment amount and the extension of the operation time, the active carbon filter layer can intercept and adsorb a large amount of pollutants, so that the phenomena of hardening, blocking, cross flow and the like of the filling filter layer are easy to occur, the effective specific surface area of the actual operation of the filling active carbon filter material is gradually reduced, and the efficiency of filtering and adsorbing pollutants can not be ensured with better continuity; meanwhile, because the air backwashing duration is short, the activated carbon filter tank is lack of sufficient dissolved oxygen, the number of microorganisms attached to the activated carbon filter material is relatively small, the growth and propagation speed is slow, the microorganisms are difficult to effectively contact with organic pollutants in overflowing water, the biodegradation organic pollutant has poor functionality, and the further improvement of the biological treatment organic pollutant efficiency is limited.
On the other hand, because the water quality of the inlet water of the adsorption filtration is different, and the backwashing frequency caused by hardening and blocking of the active carbon filler filter layer is frequent, the backwashing needs to be carried out regularly within 1 to 3 days, and the daily operation cost and the operation frequency are increased; and because the back washing times are frequent, the conventional tank type is operated intermittently, a large number of activated carbon adsorption filter tanks need to be designed and built to operate in parallel to meet the actual sewage treatment requirement, the investment construction and daily operation management and maintenance cost are high, and the actual cost of sewage treatment is increased.
Disclosure of Invention
The application aims to provide the aeration biological activity adsorption fluidized bed, thereby laying a certain technical foundation for the improvement of the sewage advanced treatment process.
The technical solution adopted in the present application is detailed as follows.
The utility model provides an aeration biological activity adsorbs fluidized bed, wholly is an uncovered formula "T" shape cell body structure that is equipped with the edge all around, specifically includes the water distribution gas distribution district that is used for intaking that is located "T" shape end, "the aeration suspension fluidization area at" T "shape middle part and the play water zone that is used for going out water that is located" T "shape horizontal head tip, specifically:
the water and gas distribution area is of a groove-type groove body structure, a water inlet pipe for entering sewage to be treated is arranged at the bottom of the groove body, an air inlet pipe is arranged at the top of the groove body, and a water and gas distribution filter head is arranged on the end face of the groove body, where the sewage enters the aeration suspension fluidization area, so as to realize uniform water and gas distribution; the water and gas distribution filter head preferably adopts a small-resistance filter head water and gas distribution system to perform secondary water and gas distribution, so that the uniformity of the sewage to be treated when entering the aeration suspension fluidization region is ensured; the air inlet pipe is used for introducing air or oxygen into the sewage to be treated, and is preferably designed into a mode of a plurality of perforated air distribution branch pipes connected with the air inlet main pipe to ensure even air distribution, so that the subsequent aeration treatment process is facilitated; in a further preferred design, when the sewage to be treated is input into the tank body by the water inlet pipe, the sewage to be treated is input through a plurality of primary water distribution holes (namely, a multi-point water inlet and distribution mode is adopted), so that the uniformity of water inlet flow is ensured;
the aeration suspension fluidization region is of an embedded tank body structure (the upper edge of the tank body is lower than the edge of the external integral tank body structure), and the sewage liquid level is lower than the upper edge of the external integral tank body structure in the sewage treatment process (namely, the sewage liquid level is kept at a certain height, so that the sewage is prevented from overflowing out of the tank body structure);
the embedded tank body of the aeration suspension fluidization region is used for adsorbing, filtering and carrying out microbial degradation treatment on pollutants and impurities in sewage, and is divided into a middle aeration core region (filled with active carbon and/or active coke as active medium filler) and a lateral internal circulation reflux region according to different functional regions, wherein the middle aeration core region is an aerobic treatment region, the lateral internal circulation reflux region is an anoxic treatment region, and the middle aeration core region and the lateral internal circulation reflux region play different biological treatment functions; the bottom of the two areas is provided with an internal circulation return channel, specifically: the tail end of the upper part of the baffle in the aeration suspension fluidization region extends to the sewage treatment circulating tank through the gradual change baffle, and the upper end of the sewage circulating tank is provided with an internal circulating reflux weir crest, so that sewage after aerobic treatment in the middle aeration core region overflows into the side internal circulating reflux region for anoxic treatment and then circulates into the aerobic region in the aeration suspension fluidization treatment core region for retreatment, or directly overflows into the water outlet region;
during specific design, the overflowing filtering speed of the aeration suspension fluidization area is generally controlled to be 3-8 m/h; in terms of volume (volume) ratio, it is generally designed as: aerobic treatment zone (middle aeration core zone): an anoxic treatment zone (side internal circulation reflux zone) = 3-5: 1;
it should be noted that, in the specific operation process, water and air enter from the bottom of the aeration suspension fluidization region, and the water flow released by the water inlet pipe is uniformly distributed by the low-resistance filter head water distribution device, and then continuously and uniformly flows upwards at a certain flow rate to enter water, and meanwhile, the air released by the air inlet pipe uniformly releases ascending air flow, and the water flow and the air flow cooperate to form a mixed flow of air and water with a certain ascending flow rate, so that the filled active carbon/active coke medium filler is in a suspension fluidization state;
in the optimized design, an internal circulation inclined plate is arranged at the T-shaped tail part of the tank body structure of the aeration suspension fluidization region, so that drainage sewage enters the middle aeration core suspension region from the side internal circulation reflux region conveniently, and the circulation reflux of the sewage in the tank body is realized; a water outlet inclined plate is arranged at the corner of the T-shaped head part of the tank body structure, so that sewage after drainage treatment can conveniently enter a water outlet groove of a water outlet area;
the water outlet area is a groove body type water outlet groove which is arranged at the T-shaped transverse head end and is used for receiving and discharging the treated sewage, thereby being convenient for further utilization or discharge.
The aeration biological activity adsorption fluidized bed provided by the application makes full use of the huge specific surface area and developed pore structure of porous adsorption media such as activated carbon/activated coke, and has strong adsorption characteristics on organic pollutants and dissolved oxygen in sewage; when the active carbon/active coke is used as a carrier, the material is a good place for the aggregation, reproduction and growth of microorganisms, and can simultaneously play the physical adsorption filtration effect and the microbial biodegradation effect of the porous adsorption medium of the active carbon/active coke under proper temperature and nutrient conditions. On the other hand, the existence of aerobic microorganisms can improve the adsorption capacity of the activated carbon/activated coke and prolong the service life of the activated carbon/activated coke. In a word, the aeration biological activity adsorption fluidized bed technology provided by the application integrates the adsorption mechanism, the fluidization mechanism and the biochemical mechanism of a medium, and has the characteristics of a physical method, a chemical method and a biological method.
In a specific application process, the aeration biological activity adsorption fluidized bed provided by the application takes particle filling particles with smaller relative density as carriers to be filled in the bed, the characteristics of developed pores, large specific surface area, surface density and the like of the carrier fillers are fully exerted, and in cooperation with a biological membrane covered on the surface of the carrier fillers, sewage and air flow from bottom to top at a certain flow rate in an operation process, so that the carrier fillers are in a suspension fluidization state, and gas, liquid and solid phases are fully contacted; the suspended fluidized state eliminates the problems of hardening, blocking, uneven water distribution and mixing and the like of the carrier filler, greatly improves the transfer speed of the matrix and oxygen, improves the biochemical reaction speed of the biological membrane, accelerates the regeneration of the biological membrane floating on the carrier filler due to the shearing action of gas and liquid flow, and improves the activity of microbial strains in sewage treatment. Meanwhile, the carrier filler has the characteristics of developed pores, huge specific surface area and the like, so that the carrier filler can have biomass with relatively higher concentration than other sewage advanced treatment processes, and the biological fluidized bed is suitable for running with water quality with higher concentration and has high load rate, high treatment rate and high reaction speed.
In general, the aerated bioactive adsorption fluidized bed provided by the application can omit frequent back washing steps and can be operated continuously. In the operation process, water is fed from the lower part and discharged from the upper part, and the lower part water inlet has certain rising flow velocity, so that the filler carrier layer is in a suspension fluidization state. In the sewage treatment process, the physical functions of filtration and adsorption of the activated carbon/activated coke are utilized, the activated carbon/activated coke is also used as a microbial strain adhesion carrier to endow the activated carbon/activated coke with the function of biodegradation of organic pollutants, and the activated carbon/activated coke has nitrification and denitrification functions by supplementing an appropriate amount of external carbon sources, so that the sewage treatment effect can be further improved. Therefore, the method has better practical value and popularization and application significance.
Drawings
FIG. 1 is a schematic structural view of an aerated bioactive adsorption fluidized bed provided by the present application.
Detailed Description
The present application is further illustrated by the following examples.
Examples
The daily treatment capacity Q =3000m of the urban domestic sewage3Taking the water quality of inlet water (close to the first-grade B standard water quality) as an example, COD is less than 75 mg/L, NH3N is less than 10 mg/L and is an index of water inflow of the sewage to be treated, and the effluent executes the first-class A standard discharge COD of less than 50 mg/L of pollutant discharge Standard of municipal wastewater treatment plant (GB 18918-2002), NH3N < 5 mg/L, in the form of a conventional reinforced concrete tank, as briefly described below with respect to the scale and structure of the particular fluidized bed (tank).
As shown in fig. 1, the aeration bioactive adsorption fluidized bed provided by the present application is an open "T" shaped tank body structure with edges around, and specifically includes a water distribution and gas distribution region located at the "T" shaped end for water inlet, an aeration suspension fluidized region located at the "T" shaped middle portion, and a water outlet region located at the "T" shaped horizontal end for water outlet.
The water and gas distribution area, namely a water inlet buffering water distribution area, is generally 700-1000 mm in height (namely depth) and is of a groove-type groove body structure, the bottom of the groove body is provided with a water inlet pipe 1 for entering sewage to be treated, the top of the groove body is provided with an air inlet pipe 4, and the connecting end surface of the groove body and the aeration suspension fluidization area is provided with a water and gas distribution filter head 3 for realizing uniform water and gas distribution;
the water and gas distribution filter head 3 preferably adopts a small-resistance filter head water and gas distribution system so as to carry out secondary water and gas distribution, thereby ensuring the uniformity of the sewage to be treated when entering the aeration suspension fluidization region;
the air inlet pipe 4 is generally formed by uniformly distributing air through a plurality of perforated air distribution branch pipes connected with an air inlet main pipe, the pipe diameter of each branch pipe is generally a UPVC (unplasticized polyvinyl chloride) or ABS (acrylonitrile butadiene styrene) material pipe of dn40/dn50, and the branch pipes are used for introducing air or oxygen into the sewage to be treated (the air distribution mode is generally formed by distributing air through the perforated pipes, so that the released air can be uniformly dispersed in the section of the whole cavity) so as to facilitate subsequent aeration treatment;
in the preferred design, when the water inlet pipe inputs sewage to be treated into the tank body, the sewage passes through the plurality of primary water distribution holes 2 (namely, a multi-point water inlet and distribution mode is adopted, the service area of a single water distribution point is generally 2-4 m2) Inputting the sewage to be treated, thereby ensuring the uniformity of the inflow.
The aeration suspension fluidization area is an embedded groove body structure (the upper edge of the groove body is lower than the edge of the external integral groove body structure, the top surface of the external integral groove body is generally 500mm-800mm higher than the upper edge of the embedded groove body), and the sewage liquid level is lower than the upper edge of the external integral groove body structure in the sewage treatment process (namely, the sewage liquid level is kept at a certain height, so that the sewage is prevented from overflowing out of the groove body structure).
Activated carbon and/or activated coke serving as an active medium filler is filled in an embedded groove body of the aeration suspension fluidization area and is used for adsorbing, filtering and carrying out microbial degradation on pollutants and impurities in the sewage; according to different functional regions, an embedded groove body of the aeration suspension fluidization region is divided into a middle aeration core region 8 and a side internal circulation reflux region 6, wherein the middle aeration core region 8 is an aerobic treatment region, the side internal circulation reflux region 6 is an anoxic treatment region, and the two regions play different biological treatment functions; the volume ratio is generally designed as follows: an aerobic treatment area: the anoxic treatment area is 3-5: 1.
The bottom of the two areas is provided with an internal circulation return channel, specifically: the tail end of the upper part of the baffle 7 in the aeration suspension fluidization area extends to a sewage treatment circulation area through a gradual change baffle 11, in the practical design, a gradual change buffer area is arranged between the top of the gradual change baffle 11 and the sewage liquid level, as the section area of the buffer area is enlarged, the flow velocity of overflowing can be properly reduced, the purposes of settling granular active medium fillers and preventing the granular active medium fillers from losing along with effluent can be well achieved, and the effective height range of the gradual change buffer area is generally 500mm-800 mm; the upper end of the sewage circulating tank is provided with an internal circulating reflux weir crest 10, so that sewage after aerobic treatment in the middle aeration core region overflows into the side internal circulating reflux region for anoxic treatment and then circulates into the aerobic region of the aeration suspension fluidization treatment core region for retreatment, or directly overflows into the water outlet region;
it should be noted that, in the specific operation process, water and air enter from the bottom of the aeration suspension fluidization region, and the water flow released by the water inlet pipe is uniformly distributed by the low-resistance filter head water distribution device, and then continuously and uniformly flows upward to enter water at a certain flow rate (the water inlet flow rate is the flow filtration rate, which is generally controlled at 3-8 m/h), and meanwhile, the air released by the air inlet pipe uniformly releases updraft, and the water flow and the air flow cooperate to form a mixed flow of air and water with a certain updraft flow rate, so that the filled active carbon/active coke medium filler is in a suspension fluidization state;
in the optimized design, an internal circulation inclined plate 5 is arranged at the T-shaped tail part of the tank body structure of the aeration suspension fluidization region, so that drainage sewage enters a middle aeration core suspension region 8 from a side internal circulation reflux region conveniently, and circulation reflux of the sewage in the tank body is realized; the corner of the T-shaped head of the tank body structure is provided with a water outlet inclined plate 9, which is convenient for sewage to enter a water outlet groove of a water outlet area after drainage treatment.
The water outlet area is a groove body type water outlet groove 12 which is arranged at the T-shaped transverse head end and is used for carrying treated sewage to be discharged, thereby being convenient for further utilization or discharge.
For active medium fillers, generally, activated carbon has relatively developed micropores, which generally account for more than 95% of the specific surface area distribution, but transition pores (mesopores) account for only less than 5%; the active coke has developed mesopores, developed mesopore void structure of 5-10nm, and the density of the filter material is 1.0-1.2 g/cm3The particle diameter of the particles is 3-5mm, and the specific surface area is 400-800m2The adsorption capacity per gram is higher for macromolecular refractory organics in the sewage. Therefore, in the specific operation process, only activated carbon can be considered for the advanced treatment of the feed water with better inlet water quality, and in most cases, activated coke or the mixture of the activated coke and the activated carbon is considered for the advanced treatment of the sewage with poorer inlet water quality, so that developed mesopore gaps of the activated coke are fully utilized, and a large number of large-scale adsorption and degradation are realizedMolecules and large molecular weight organic contaminants. During specific filling, the filling thickness of the active coke filler is preferably 1.0 m-2.5 m, the suspension fluidization expansion rate in the operation process is more than 25%, and in order to prevent the active coke from being carried and lost along with effluent, the suspension fluidization area can be selected to control the height to be about 3.5m during design.
In general, the main technical advantages of the present application are as follows:
(1) the influent water enters from the bottom and flows through the bioactive filler from bottom to top, the flow filtration speed is controlled within a certain range (generally the value is 3-8 m/h), the influent water continuously and uniformly flows upwards from the bottom of the aeration suspension fluidization area at a certain flow rate, the air inlet pipe uniformly releases ascending air flow, the mixed flow of air and water with a certain ascending flow rate keeps the filled medium filler in a suspension fluidization state, and the medium filler is attached with a large number of microbial strains by virtue of a developed gap structure and a large specific surface area of the medium filler, so that the effective contact of the medium filler with organic pollutants in an overflowing water body is increased, and the degradation efficiency of the organic pollutants biochemically treated by the microbial strains is greatly improved;
(2) the filling filler has different requirements on water inlet source and water outlet quality, and can be selected to fill porous active adsorption fillers such as active carbon, active coke and the like according to the technical and economic comparison, the filling height of the filling active carbon/active coke filler is preferably 1.0-2.5 m, the suspension fluidization expansion rate is more than 25%, the expansion rate is preferably 25-35%, and the filler has the filtering and adsorbing effects and also serves as a biological attachment carrier of microbial flora;
(3) the active carbon/active coke has large specific surface area and developed pore structure, so that the active carbon/active coke has strong adsorbability on organic pollutants and dissolved oxygen in water, and the physical adsorption and microbial biodegradation effects of the active carbon/active coke are fully utilized; activated carbon has developed micropores; the active coke has developed mesopores and a developed mesopore void structure of 5-10nm, so that the active coke has high-efficiency adsorption on macromolecular organic matters which are difficult to degrade in wastewater; for advanced treatment of water supply with good inlet water quality, active carbon can be considered, and for advanced treatment of sewage with poor inlet water quality, active coke is usually considered, so that developed mesopore gaps of the active coke are fully utilized, and macromolecular and high molecular weight organic pollutants are adsorbed and degraded;
(4) the dissolved oxygen in the aeration suspension fluidization area is controlled to be in an aerobic state, so that the biological nitrification reaction is facilitated, the dissolved oxygen in the inner circulation reflux area is controlled to be in an anoxic state, and a proper amount of external carbon sources (methanol, sodium acetate and the like) are supplemented in a matching manner, so that the biological denitrification reaction is facilitated; the dissolved oxygen can be controlled to effectively control the biological nitrification and denitrification reaction so as to achieve the aim of biological denitrification;
(5) the technology is specially provided with two anti-loss measures for preventing the loss of the active carbon/active coke filter material, so as to avoid the loss of the filter material, the upper water outlet structure adopts a gradual change form, the upper part of an inner baffle is a gradual change baffle, a gradual change buffer zone is arranged between the top of the gradual change baffle and the sewage liquid level, and the purpose of preventing the loss of the granular filter material along with the outlet water is achieved by increasing the flow area, reducing the outlet water flow speed and preventing the loss of the granular filter material along with the; in addition, an internal circulation backflow channel is additionally arranged at the water outlet end at the upper part, so that the loss of the filter material is further prevented, and the loss of the granular filter material is effectively avoided through the internal circulation backflow channel;
(6) as a novel sewage advanced treatment process technology, the method has the advantages of high treatment efficiency, large volume load, strong shock resistance, compact facility equipment, small occupied area, low capital investment and operating cost and the like, and has one of water supply and drainage advanced treatment processes with wide development prospect.
Claims (8)
1. The utility model provides an aeration biological activity adsorbs fluidized bed, its characterized in that, this fluidized bed is whole to be one and is equipped with the uncovered formula "T" shape cell body structure of edge all around, specifically includes the water distribution gas distribution district that is used for intaking that is located "T" shape end, "the aeration suspension fluidization district at" T "shape middle part and be located the play water zone that" T "shape horizontal end portion is used for going out water, specifically:
the water and gas distribution area is of a groove-type groove body structure, a water inlet pipe for entering sewage to be treated is arranged at the bottom of the groove body, an air inlet pipe is arranged at the top of the groove body, and a water and gas distribution filter head is arranged on the end face of the groove body, where the sewage enters the aeration suspension fluidization area, so as to realize uniform water and gas distribution;
the aeration suspension fluidization area is of an embedded groove body structure, and the upper edge of the groove body is lower than the edge of the external integral groove body structure;
the embedded tank body of the aeration suspension fluidization area is divided into a middle aeration core area and a side internal circulation reflux area, wherein the middle aeration core area is filled with active carbon and/or active coke as active medium filler;
the tail end of the upper part of the baffle in the aeration suspension fluidization area extends to the sewage treatment circulating tank through the gradual change baffle, and the upper end of the sewage circulating tank is provided with an internal circulation backflow weir crest;
the water outlet area is a groove body type water outlet groove and is arranged at the T-shaped transverse head end.
2. An aerated bioactive adsorption fluidized bed as claimed in claim 1 wherein said water inlet pipe is fed with wastewater to be treated through a plurality of primary water distribution holes.
3. An aerated bioactive adsorptive fluidized bed according to claim 1 wherein said inlet manifold is in the form of a plurality of perforated gas distribution manifolds connected to a main inlet manifold to ensure uniform gas distribution.
4. The aerated bioactive adsorptive fluidized bed of claim 1, wherein said water and gas distribution filter head uses a low resistance filter head for secondary water and gas distribution.
5. An aerated bioactive adsorptive fluidized bed according to claim 1 wherein said "T" shaped end of said tank structure in said aerated suspended fluidized zone is provided with internal inclined recycle plates.
6. An aerated bioactive adsorptive fluidized bed according to claim 1 wherein an inclined water outlet plate is disposed at a corner of the "T" shaped head of the tank body structure in the aerated suspended fluidized zone.
7. An aerated bioactive adsorptive fluidized bed according to claim 1, wherein the middle aerated core zone comprises, by volume: the side internal circulation reflux area is 3-5: 1.
8. An aerated bioactive adsorptive fluidized bed according to claim 1, wherein the flow filtration rate of the aerated suspended fluidized zone is controlled to be 3 to 8 m/h.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113582436A (en) * | 2021-07-06 | 2021-11-02 | 山东泰亚环保科技有限公司 | Activated carbon supported microorganism cyclic aeration system and process |
| CN114031174A (en) * | 2021-11-22 | 2022-02-11 | 广州市水之道生态环境修复有限公司 | Solar energy circulation aeration suspension type biological filter |
| CN116199340A (en) * | 2022-05-26 | 2023-06-02 | 北京新城禹潞环保科技有限责任公司 | Multiphase turbulent flow biomembrane sewage treatment equipment |
| CN116375301A (en) * | 2023-06-05 | 2023-07-04 | 山东国宏生物科技有限公司 | Soybean oil wastewater treatment method |
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2019
- 2019-11-21 CN CN201922022842.8U patent/CN211035386U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582436A (en) * | 2021-07-06 | 2021-11-02 | 山东泰亚环保科技有限公司 | Activated carbon supported microorganism cyclic aeration system and process |
| CN113582436B (en) * | 2021-07-06 | 2023-09-19 | 山东泰亚环保科技有限公司 | Activated carbon microorganism-loaded cyclic aeration system and technology |
| CN114031174A (en) * | 2021-11-22 | 2022-02-11 | 广州市水之道生态环境修复有限公司 | Solar energy circulation aeration suspension type biological filter |
| CN116199340A (en) * | 2022-05-26 | 2023-06-02 | 北京新城禹潞环保科技有限责任公司 | Multiphase turbulent flow biomembrane sewage treatment equipment |
| CN116199340B (en) * | 2022-05-26 | 2023-12-29 | 北京新城禹潞环保科技有限责任公司 | Multiphase turbulent flow biomembrane sewage treatment equipment |
| CN116375301A (en) * | 2023-06-05 | 2023-07-04 | 山东国宏生物科技有限公司 | Soybean oil wastewater treatment method |
| CN116375301B (en) * | 2023-06-05 | 2023-08-18 | 山东国宏生物科技有限公司 | Soybean oil wastewater treatment method |
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