CN108911242B - Super nano bubble circulating ozone sewage treatment method and device - Google Patents
Super nano bubble circulating ozone sewage treatment method and device Download PDFInfo
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- CN108911242B CN108911242B CN201810814240.3A CN201810814240A CN108911242B CN 108911242 B CN108911242 B CN 108911242B CN 201810814240 A CN201810814240 A CN 201810814240A CN 108911242 B CN108911242 B CN 108911242B
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- 238000011282 treatment Methods 0.000 title claims abstract description 152
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 20
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- 229910052719 titanium Inorganic materials 0.000 claims description 2
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Classifications
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention belongs to the technical field of sewage treatment, and discloses a super nano bubble circulating ozone sewage treatment method and device. The method comprises the following steps: the sewage enters a water collecting well after pretreatment, and hydrogen peroxide or an acid-base modifier is added to adjust the pH value of the sewage; and (3) carrying out super nano bubble treatment, circulating ozone treatment and filtering treatment on the sewage with the adjusted pH value, precipitating, and adjusting the pH value to reach the emission standard. The super nano bubble generator adopted for super nano bubble treatment takes a conductive nano diamond film as a bubble generation plane. Other chemical agents are not needed to be added in the process, so that the sludge production is greatly reduced, the COD level of sewage is stabilized, and a time-consuming and material-consuming biochemical system can be replaced; the process has strong sewage treatment capability and short time consumption. In addition, the device applying the process has the advantages of higher system matching flexibility and land space saving, and is an efficient and low-cost sewage treatment process.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a super nano bubble circulating ozone sewage treatment method and device.
Background
In the existing sewage treatment technology, the anaerobic membrane bed is an efficient sewage anaerobic treatment technology, and has the advantages of quick start, difficult sludge loss, selection of fillers with different materials, and the like. The aeration biological filter is also an efficient sewage aerobic treatment process, and has the greatest advantages of integrating biological oxidation and suspended solid interception functions, and saving a secondary sedimentation tank. The sewage treatment reaction time in the anaerobic treatment process is longer, and a large-area treatment tank is needed, so that the problem that the system floor area of the sewage tank adopting the treatment process reaches the treatment capacity but is lower occurs; the disadvantage of the aerobic treatment process is that the requirement on the suspended solids concentration SS of the inlet water is high, the head loss is high, and periodic back flushing is required. In addition, the COD level of the sewage in the two processes is easy to generate larger fluctuation, so that the process and the result of sewage treatment become uncontrollable.
Most of sewage treatment systems in use in the longitudinal observation stage adopt anaerobic-aerobic secondary biochemical technology. Obviously, the sewage treatment system adopting the process has the defects of both an anaerobic treatment process and an aerobic treatment process. The building floor area is large, the treatment capacity is low, and various medicaments are required to be added to the sewage for adjustment under the condition of high pretreatment requirements on the sewage, so that the treatment period is prolonged, the running cost is increased, and the sludge production amount is increased.
Therefore, how to adopt the two processes and overcome the defects at the same time, how to improve the treatment efficiency of the system, reduce the operation cost, save the floor area of the building, and make the sewage treatment process more stable and controllable become a technical problem which is generally needed to be solved in the industry.
In addition, in the sewage treatment process in the prior art, nanobubbles and the application of ozone water are also used. It is well known in the industry that bursting of nano bubbles can break molecular chemical bonds of organic matters such as greasy dirt and the like, so as to realize the degradation effect. And the smaller the bubbles the more pronounced the effect. In addition, the nano bubbles have remarkable effect on removing colloid in sewage. Ozone is used as a substance with strong oxidability, and can effectively degrade organic matters in sewage through advanced oxidation reaction.
However, nanobubbles with smaller diameters are difficult to generate due to technical limitations; ozone gas is difficult to be directly used for sewage treatment, ozone water is difficult to prepare, and the effective time is short (the ozone concentration in water is 6.25 x 10 -3 mg/L, and the half-life period is 5-30 minutes). The two methods are difficult to apply in the sewage treatment field in a large scale.
How to better apply the two technologies in sewage treatment, develop the characteristics of the technologies and innovate the existing sewage treatment process and system, and become the focus of general attention in the field.
Disclosure of Invention
In order to overcome the defects in the prior art, the primary aim of the invention is to provide a super nano bubble circulating ozone sewage treatment method; the method fully exerts the advantages of the super nano bubble technology and the strong oxidizing property of ozone, and is a simple and efficient sewage treatment process.
The invention also aims to provide a device for realizing the ultra-nano bubble circulation ozone sewage treatment method, which aims to efficiently degrade sewage solution to improve the working efficiency of sewage treatment.
The invention aims at realizing the following technical scheme:
a super nano bubble circulation ozone sewage treatment method comprises the following steps:
S1, after pretreatment, sewage enters a water collecting well, and hydrogen peroxide or an acid-base modifier is added to adjust the pH value of the sewage, so that the pH value of the sewage in the water collecting well meets the requirement of subsequent sewage treatment;
S2, performing super nano bubble treatment, circulating ozone treatment and filtering treatment on the sewage with the adjusted pH value, precipitating, and adjusting the pH value to reach the emission standard.
The super nano bubble generator adopted in the super nano bubble treatment takes a conductive nano diamond film as a bubble generation plane; the circulating ozone water in the circulating ozone treatment is derived from sewage in the ozone reaction kettle, and returns to the ozone reaction kettle after passing through the ozone generating head.
The adjustment in S1 is carried out on the pH value of the sewage by using hydrogen peroxide generated by a hydrogen peroxide generator; the pretreatment is that sewage sequentially passes through a grating and an oil separation tank; the pH value required by the subsequent sewage treatment is 3.0-6.0.
The bubbles generated by the super nano bubble generator in the S2 are super nano bubbles with the diameter smaller than 1 mu m; the concentration of the circulating ozone water returned to the ozone reaction kettle after passing through the ozone generating head is 0.5-20 ppm.
And S2, the super nano bubble treatment, the circulating ozone treatment and the filtering treatment are sequentially carried out, or the three are simultaneously carried out, or the super nano bubble treatment and the circulating ozone treatment are simultaneously carried out and then the filtering treatment is carried out, or the super nano bubble treatment is firstly carried out and then the circulating ozone treatment and the filtering treatment are simultaneously carried out.
The filtering device adopted in the filtering treatment in the S2 comprises a filtering membrane, wherein the diameter of a filtering micropore on the surface of the filtering membrane is 0.1-1 mu m, and the number of layers is determined according to specific conditions: in the conventional water quality sewage treatment process, the average area of a filtering membrane corresponding to sewage per m 3 is 2.5-5.0 m 2.
And S2, the filtering membrane is made of ceramic or porous titanium materials, and the materials are filtering materials which are resistant to oxidation corrosion of sewage and ozone water, wear resistant and super nano bubble impact resistant.
The device for realizing the super nano bubble circulating ozone sewage treatment method comprises an ozone reaction kettle, an ozone generating head, a super nano bubble generator, a filtering device and a waste residue collector; the super nano bubble generator and the filtering device are positioned at the inner bottom of the cavity of the ozone reaction kettle, the top of the super nano bubble generator is communicated with the bottom of the filtering device, the inside of the filtering device extends a purified water outlet towards the outside of the ozone reaction kettle, and the purified water outlet is provided with a three-way valve which is connected with a backwash pump of the filtering device; the top of the side surface of the ozone reaction kettle is provided with a sewage inlet and an ozone water inlet, the bottom of the side surface of the reaction kettle is provided with a COD detection head and a sewage outlet, and the sewage outlet flows to the ozone generation head and then enters the ozone water inlet; the waste residue collector is the back taper, its upper end opening is connected with ozone reation kettle bottom, reaction waste residue in the ozone reation kettle falls into the waste residue collector that is located its bottom under the action of gravity, waste residue collector is inside to be equipped with the reflux baffle, the rotatory pole that its self lift can be adjusted in the reflux baffle connection, the top of the rotatory pole extends to ozone reation kettle's top surface outside, be provided with the waste residue inductive probe of whether the response waste residue is full below the reflux baffle, waste residue collector bottom is provided with the response valve, waste residue inductive probe connects the response valve.
The super nano bubble generator is connected with an air compressor arranged outside the ozone reaction kettle through a pipeline; the number of the ozone generating heads is 1-3, and the number of the ozone generating heads is at most 3 basically meeting the requirements under the general conditions according to the design processing capacity and the processing requirements of a specific system; the top of the rotary rod is provided with scales.
The device for realizing the super nano bubble circulating ozone sewage treatment method comprises an ozone reaction kettle, an ozone generating head, a super nano bubble generator, a super nano bubble tank, a filtering device and a waste residue collector; the filtering device is positioned at the inner bottom of the cavity of the ozone reaction kettle, the inside of the filtering device extends to the outside of the ozone reaction kettle to form a purified water outlet, the purified water outlet is provided with a three-way valve, and the three-way valve is connected with a backwash pump of the filtering device; the top of the side surface of the ozone reaction kettle is provided with a sewage inlet and an ozone water inlet, the bottom of the side surface of the reaction kettle is provided with a COD detection head and a sewage outlet, and the sewage outlet flows to the ozone generation head and then enters the ozone water inlet; the waste residue collector is in an inverted cone shape, an opening at the upper end of the waste residue collector is connected with the bottom of the ozone reaction kettle, reaction waste residues in the ozone reaction kettle fall into the waste residue collector at the bottom of the ozone reaction kettle under the action of gravity, a reflux baffle is arranged in the waste residue collector, the reflux baffle is connected with a rotating rod capable of adjusting the self-lifting of the waste residue collector, the top of the rotating rod extends out of the top surface of the ozone reaction kettle, a waste residue induction probe for sensing whether waste residues are fully accumulated is arranged below the reflux baffle, an induction valve is arranged at the bottom of the waste residue collector, and the waste residue induction probe is connected with the induction valve;
The super nano bubble generator is positioned at the bottom of the cavity of the super nano bubble tank, the top of the side surface of the super nano bubble tank is provided with a water inlet, and the bottom of the side surface is provided with a water outlet; the water outlet of the super nano bubble tank is connected with the sewage inlet of the ozone reaction kettle through a pipeline.
The super nano bubble generator is connected with an air compressor arranged outside the super nano bubble tank through a pipeline; the number of the ozone generating heads is 1-3, and the number of the ozone generating heads is at most 3 basically meeting the requirements under the general conditions according to the design processing capacity and the processing requirements of a specific system; the top of the rotary rod is provided with scales.
Preferably, the inner wall surfaces of the ozone reaction kettle and the super nano bubble tank are coated with anti-corrosion and anti-adhesion coatings.
Preferably, the relationship among the super nano bubble tank, the ozone reaction kettle and the filtering device can be as follows:
A. the super nano bubble generator, the ozone reaction kettle and the filtering device are integrated, and simultaneously, the treatment and the filtration of the greasy dirt and the organic pollutants of the sewage are carried out;
B. the super nano bubble generator is integrated with the ozone reaction kettle, and is used for simultaneously treating sewage residual greasy dirt and organic pollutants, and then filtering by a filtering device.
C. The ozone reaction kettle and the filtering device are integrated, the sewage is firstly subjected to the action of super nano bubbles to remove greasy dirt, and then the sewage organic pollutants are treated and filtered.
D. The three are independent, according to the process sequence, the sewage is firstly subjected to super nano bubble degreasing, then enters an ozone reaction kettle to treat organic pollutants by utilizing high-concentration circulating ozone water, and finally enters a filtering device to be filtered.
The principle of the invention is as follows:
(1) The invention adopts the super nano bubbles and the ozone water to treat sewage simultaneously, thereby achieving the treatment effect which is difficult to achieve by using the super nano bubbles and the ozone water singly. The super nano bubbles promote the hydroxyl generation when the ozone water reacts with the sewage, promote the degradation of the ozone water on the organic pollutants of the sewage, and achieve the treatment effect which is difficult to achieve by singly using the ozone water; in addition, the super nano bubbles have better treatment effect on nitrogen, phosphorus and COD in sewage. The two are simply overlapped to realize the effect which cannot be achieved by using the two alone (super nano bubbles are generally used in the pretreatment stage of sewage, and ozone water is generally used for advanced sewage treatment alone).
(2) The ozone water for treating sewage is derived from sewage and acts on the sewage (the ozone water is prepared from the sewage and is not available under the prior art). The existing method is that firstly, an ozonizer is used for preparing ozone, the ozone is directly connected into sewage to be treated, or the ozonizer is used for preparing ozone water from clear water and then the ozone water is added into the sewage to be treated; however, the process for preparing ozone in the prior art has high risk, high corresponding facility cost and very low efficiency. Compared with the existing method, the method is more convenient, safer and more economical.
Compared with the prior art, the process has the following advantages:
1. can reduce and stabilize the COD value of sewage. In the process, high-concentration ozone water is adopted to carry out advanced chemical reaction on organic matters in sewage, and the stability of COD value can be maintained on the basis of reducing the COD value of the sewage.
2. The process does not need to add other chemical agents in the whole process, thereby greatly reducing the sludge production. In the traditional sewage treatment process, chemical agents such as caustic soda, polyaluminum and the like are added in the coagulation and air floatation process, and finally the agents become and increase the yield of sludge. The method does not need to additionally add the medicaments in the sewage treatment process, and the sludge produced by the process is small in quantity, so that the sludge production of the whole process is effectively controlled; meanwhile, the pollutants in the wastewater are subjected to strong oxidation treatment through the operation of an advanced oxidation system, so that organic pollutants are fully oxidized into carbon dioxide (CO 2) and water (H 2 O), and meanwhile, part of pollutants which are indissolvable in water are separated out of a water body through waste residues; thereby reducing the addition amount of chemical agents or not adding chemical agents and reducing the output of sludge.
3. Compared with the traditional sewage treatment process, the process has strong sewage treatment capability and short sewage treatment time consumption, and can replace a biochemical system which takes time and takes materials. The main process of the traditional sewage treatment technology is to degrade organic pollutants by utilizing anaerobic-aerobic biochemical reaction. The metabolism speed of the microorganism and the metabolism of the microorganism are easily influenced by the external environment, so that the sewage treatment capacity is limited and the treatment speed is low, and the sewage treatment system has the limited treatment capacity and the long treatment process. The process adopts super nano bubbles and high-concentration ozone water to degrade organic matters, so that the degradation efficiency is high, the efficiency is not influenced by water quality conditions, and the superiority of the process in the aspects of treatment capacity and time consumption is ensured.
4. The process has strong combinability with other sewage treatment processes, and the equipment and the corresponding treatment capacity applying the process have strong expansibility, and can be conveniently combined with various sewage treatment equipment as a module. In addition, the process equipment is suitable for treating various sewage, and can achieve the treatment effect by increasing the number of ozone generating heads or prolonging the treatment time aiming at the sewage with different water quality conditions.
5. The system structure applying the technology has flexibility, is suitable for various space and environmental conditions, has low design requirement on the system, has the advantage of saving land space, and is an efficient and low-cost sewage treatment technology.
6. In addition, the super nano bubbles adopted in the process are made of conductive nano diamond materials by using bubble generation planes, so that the super nano bubbles with the diameter smaller than 1 mu m can be prepared, and the super nano bubbles can break molecular chemical bonds and further decompose the molecular chemical bonds into other substances by utilizing the huge destructive power generated by bubble bursting in the process of separating greasy dirt and colloidal pollutants. Can efficiently remove greasy dirt, colloid pollutant and other organic pollutant in sewage without adding other reagents. The use amount of reagents for removing greasy dirt and colloid is reduced, so that the production amount of sludge in the process is greatly reduced, sewage with better water quality condition is provided for the subsequent treatment process, and the treatment effect of the system is ensured.
7. Can replace biochemical systems and has the advantage of stabilizing sewage COD. Microorganisms in the traditional biochemical system have certain requirements on the stability of COD, and under the condition of unstable COD, the ecological system has the risk of breakdown. The sewage treatment effect produced by the method can reach or even exceed that of a biochemical system. In addition, the stable system of the system is improved, and the continuous sewage treatment capability of the system is easier to maintain.
Compared with the prior art, the device has the following advantages:
1. According to the technical scheme, the super nano bubble generator is adopted to generate super nano bubbles, the super nano bubbles are matched with the ozone generating head to electrolyze ozone water, so that the sewage solution is efficiently degraded, organic pollutants in the sewage solution are degraded into carbon dioxide (CO 2), water (H 2 O) and waste residues which are difficult to dissolve in water, and the waste residues are uniformly collected by the waste residue collector under the action of dead weight. The super nano bubble circulating ozone sewage treatment device of the technical scheme of the invention can be used as a module for combination or independent application in the related fields of sewage treatment and environmental protection in practical application, and specifically, the sewage with different water quality under different conditions can be purified by using ozone water with different concentrations. Meanwhile, the super nano bubbles can be effectively combined with the filtering device, so that the sewage is treated by the super nano bubbles, and the phenomenon that organic pollutant impurities in the sewage are adhered to the surface of the filtering device to influence the filtering effect can be prevented.
2. The super nano bubble circulating ozone device of the technical scheme of the invention can be used as one of the modules of a sewage treatment system, and has the advantages of realizing unmanned management, automatically treating sewage with different water quality conditions and the like.
3. The super nano bubble circulating ozone device provided by the technical scheme of the invention is used as a module of a sewage treatment system, and the technical problems of overlarge occupied area, higher running cost, long sewage treatment residence time and the like of sewage treatment equipment in the prior art are effectively solved.
4. The device is provided with the reflux baffle plate in the waste residue collector, the waste residue is gathered by controlling the distance between the reflux baffle plate 17 and the inner wall of the waste residue collector, and the waste residue is not recoiled back to the ozone reaction kettle along with water flow in the process of stirring sewage; the disadvantage of the waste residue flowing back to the ozone reaction kettle is that: react with ozone to influence the sewage treatment effect; impact and collision precision filtration membrane damages the filtration membrane and adheres to the filtration pore to affect the filtration effect, and the reflux baffle plate provided by the invention well solves the problems.
Drawings
FIG. 1 is a flow chart of a process for treating super nano bubble circulating ozone sewage, which relates to the invention;
FIG. 2 is a schematic structural view of one embodiment of a combination embodiment of a super nanobubble sound generator and an ozone generating head in a super nanobubble circulating ozone sewage treatment device according to the present invention; wherein 1 is an ozone reaction kettle, 2 is a filtering device, 3 is a super nano bubble generator, 4 is a waste residue collector, 5 is an air compressor, 6 is an ozone generating head, 7 is super nano bubbles, 8 is reaction waste residue, 9 is an induction valve, 11 is a sewage inlet, 12 is a sewage outlet, 13 is an ozone water inlet, 14 is a purified water outlet, 15 is a back flushing pump, 16 is a three-way valve, 17 is a backflow baffle, 18 is a rotary rod, 19 is a COD detection head, and 20 is a waste residue induction probe.
Fig. 3 is a schematic structural diagram of another embodiment of a combination embodiment of a super nano bubble generator and an ozone generating head of a super nano bubble circulation ozone sewage treatment device according to the present invention, wherein 1 is an ozone reaction kettle, 2 is a filtering device, 3 is a super nano bubble generator, 4 is a waste residue collector, 5 is an air compressor, 6 is an ozone generating head, 7 is a super nano bubble, 8 is reaction waste residue, 9 is an induction valve, 10 is a super nano bubble tank, 11 is a sewage inlet, 12 is a sewage outlet, 13 is an ozone water inlet, 14 is a clean water outlet, 15 is a backwash pump, 16 is a three-way valve, 17 is a backflow baffle, 18 is a rotary rod, 19 is a COD detecting head, and 20 is a waste residue induction probe.
Detailed Description
The present invention will be described in further detail with reference to examples, but embodiments of the present invention are not limited thereto.
As shown in figure 1, the process and the device for treating the sewage by using the super nano bubbles and circulating ozone comprise a pretreatment device (a grating, an oil separation tank and the like), a water collecting well, a super nano bubble tank, an ozone reaction kettle, filtering equipment and a sedimentation tank which are sequentially arranged along the sewage treatment direction. The super nano bubble circulating ozone sewage treatment process is suitable for the requirements of sewage treatment of various sewage and sewage with different treatment capacities. And the sewage pH value is adjusted by using an adjusting agent or a pH value adjuster (an electrolytic hydrogen peroxide device under a specific environment) in the water collecting well. The bubble generation surface of the super nano bubble generator is a conductive nano diamond film. The circulating ozone in the ozone reaction kettle is derived from sewage in the reaction kettle, and returns to the reaction kettle after passing through the ozone generating head.
As shown in fig. 1, the main steps of the invention for treating sewage are as follows:
S1, sewage enters a water collecting well after pretreatment, and hydrogen peroxide or an acid/alkali blending agent is added to adjust the pH value of the sewage, so that the pH value of the sewage in the water collecting well meets the requirement of subsequent sewage treatment.
S2, after the pH value of the sewage is regulated, the sewage enters a super nano bubble tank, molecular chemical bonds of organic matters such as oil stains in the sewage are broken through the upward floating bursting process of the super nano bubbles continuously generated at the bottom of the tank, and residual grease and partial organic matters in the sewage are further removed.
S3, the sewage enters a reaction kettle in which high-concentration ozone water is continuously generated and circulated, and organic matters in the sewage are degraded under the continuous strong oxidation action of the ozone water until the content of the organic pollutants reaches an ideal value.
S4, sewage is discharged after reaching standards after advanced oxidation treatment, filtration, precipitation and pH value adjustment, and filtrate generated by filtration flows back to a water collecting well to be subjected to subsequent treatment along with sewage.
Further, the reagent for adjusting the pH value in the water collecting well is preferably hydrogen peroxide, and other acid/alkali reagents and other reagents can be selected for adjustment according to specific conditions.
Further, the main treatment process in the super nano bubble circulating ozone sewage treatment process is that the super nano bubbles remove compounds such as residual greasy dirt and colloid, and continuous oxidation explanation is carried out on organic matters in sewage continuously by utilizing high-concentration circulating ozone until COD reaches a certain range. In addition, other treatment processes can be added to the front end, middle end or tail end of the two treatment processes according to specific situations or treatment requirements. If the anaerobic and aerobic biochemical treatment device is added before the high-concentration circulating ozone treatment process, the content of organic pollutants in the sewage is further reduced, and the effluent can reach the reclaimed water recycling standard and the like.
The invention relates to a super nano bubble circulating ozone sewage treatment device, which provides two embodiments:
Example 1
The super nano bubble circulating ozone sewage treatment device is shown in fig. 2, and comprises an ozone reaction kettle 1, an ozone generating head 6, a super nano bubble generator 3, a filtering device 2 and a waste residue collector 4; the super nano bubble generator 3 and the filtering device 2 are positioned at the bottom in the cavity of the ozone reaction kettle 1, the top of the super nano bubble generator 3 is communicated with the bottom of the filtering device 2, the inside of the filtering device 2 extends a purified water outlet 14 to the outside of the ozone reaction kettle 1, the purified water outlet 14 is provided with a three-way valve 16, and the three-way valve 16 is connected with a back flushing pump 15 of the filtering device 2; the top of the side surface of the ozone reaction kettle 1 is provided with a sewage inlet 11 and an ozone water inlet 13, the bottom of the side surface of the reaction kettle is provided with a COD detection head 19 and a sewage outlet 12, and the sewage outlet 12 flows to the ozone generation head 6 and then enters the ozone water inlet 13; the waste residue collector 4 is in an inverted cone shape, an opening at the upper end of the waste residue collector is connected with the bottom of the ozone reaction kettle 1, reaction waste residues 8 in the ozone reaction kettle 1 fall into the waste residue collector 4 at the bottom of the waste residue collector under the action of gravity, a reflux baffle 17 is arranged in the waste residue collector 4, the reflux baffle 17 is connected with a rotary rod 18 which can adjust the self-lifting of the waste residue collector, the top of the rotary rod 18 extends out of the top surface of the ozone reaction kettle 1, a waste residue induction probe 20 for sensing whether the waste residues are full is arranged below the reflux baffle 17, an induction valve 9 is arranged at the bottom of the waste residue collector 4, and the waste residue induction probe 20 is connected with the induction valve 9; the super nano bubble generator 3 is connected with an air compressor 5 arranged outside the ozone reaction kettle through a pipeline; the top of the rotary rod 18 is provided with a scale.
The working principle of the super nano bubble circulating ozone sewage treatment device provided by the embodiment is as follows:
The super nano bubble circulating ozone sewage treatment device provided in this embodiment 1 firstly introduces a certain amount of sewage solution after the pretreatment and the pH value adjustment in the collector well through the sewage inlet 11 at the top of the side surface of the ozone reaction kettle 1, so that the inside of the ozone reaction kettle 1 is filled with a certain amount of sewage solution, the ozone generation head 6 sucks a certain amount of sewage through the sewage outlet 12 at the bottom of the ozone reaction kettle 1 to be used as an original material for generating ozone gas, and the sewage water is electrolyzed to generate ozone water after entering the ozone generation head 6 from the sewage outlet 12, and then enters the ozone reaction kettle 1 from the ozone water inlet 13 to degrade the sewage.
Meanwhile, the air compressor 5 is started to provide a high-pressure gas source for the super nano bubble generator 3, the high-pressure gas passes through the super nano bubble generator 3 to generate super nano bubbles 7 with the diameter smaller than 1 mu m, the super nano bubbles 7 enter sewage solution in the ozone reaction kettle 1 after passing through filtration micropores on the surfaces of a multi-layer filtration membrane in the filtration device 2, at the same time, the super nano bubbles 7 are continuously broken in the rising process, so that ozone water and sewage are fully mixed to enable organic pollutants of the sewage to be efficiently degraded, the degraded organic pollutants become reaction waste residues 8 which automatically settle in the waste residue collector 4 to be collected, the backflow baffle 17 helps to enable the waste residues to be gathered and not to flow back to the ozone reaction kettle along with water in the sewage stirring process, when the waste residues are sensed to be piled up to the backflow baffle 17 by the waste residue sensing probe 20, the sensing valve 9 is opened to discharge the waste residues, the sensing valve is closed again after the waste residues are discharged, a small amount of waste residues are discharged together, and the waste residues are returned to the water collecting well to enter the subsequent treatment process. The height of the reflux baffle 17 is adjusted through a rotary rod 18, the scale of the height of the reflux baffle 17 is arranged on the rotary rod, so that the height of the reflux baffle is adjusted according to the size degree and the quantity of waste residue particles, the purpose of controlling the distance between the reflux baffle 17 and the inner wall of a waste residue collector to restrict waste residue reflux is achieved, and the range of the ratio of the distance between the reflux baffle 17 and the inner wall of the waste residue collector to the cross-sectional area of the ozone reaction kettle is 1: (1-1000).
Detecting the COD value of sewage in real time through the COD detection head 19, stopping preparing ozone by the ozone reaction kettle when the COD value of the sewage reaches the treatment requirement, opening a valve of the purified water outlet 14, enabling degraded and filtered water to flow out through the purified water outlet 14, adsorbing residual waste residues and small molecular particles in the water into pores in a filtering membrane of the filtering device 2, and enabling the water flowing out of the purified water outlet 14 to enter a subsequent sedimentation tank for sedimentation, pH adjustment and standard discharge; when the purified water outlet 14 is not used for discharging water, the valve of the purified water outlet 14 is closed, the valve of the three-way valve 16 is opened, the back flushing pump 15 is opened, the filtering membrane is back flushed (the back flushing water can be tap water or other water but not original sewage), the waste residues and small molecular particles attached to the pores in the filtering membrane are flushed out of the filtering membrane, and automatically settled in the waste residue collector 4 under the action of gravity to be collected.
In practical application, the super nano bubble circulating ozone sewage treatment device provided by the embodiment can be used as a module to be combined or independently applied to the related fields of sewage treatment and environmental protection, and specifically, sewage with different water quality can be purified by using ozone water with different concentrations. Meanwhile, the super nano bubbles 7 can be effectively combined with the filtering device 2, so that the sewage treatment by using the super nano bubbles 7 can be realized, and organic pollutant impurities in the sewage can be prevented from adhering to the surface of the filtering device 2 to influence the filtering effect.
The experimental data of the partial treatment of sewage per unit volume (1 ton) in this example are shown in table 1 below:
TABLE 1 Experimental data for sewage treatment
According to experimental data comparison results, the super nano bubble circulating ozone sewage treatment process and the corresponding device can keep higher COD removal rate in sewage treatment. On the premise of ensuring the treatment efficiency, the operation process is more economical, the time consumption in the whole treatment process is shorter, the COD is more stable, and the relatively lower sludge production is ensured. By combining a plurality of advantages and comparison, the super nano bubble circulating ozone sewage treatment process and device provided by the invention obviously appear to be more efficient and lead.
Example 2
The super nano bubble circulating ozone sewage treatment device of the embodiment is shown in fig. 3, and comprises an ozone reaction kettle 1, an ozone generating head 6, a super nano bubble generator 3, a super nano bubble tank 10, a filtering device 2 and a waste residue collector 4; the filter device 2 is positioned at the inner bottom of the cavity of the ozone reaction kettle 1, the inside of the filter device 2 extends to the outside of the ozone reaction kettle 1 to form a purified water outlet, the purified water outlet 14 is provided with a three-way valve 16, and the three-way valve 16 is connected with a back flushing pump 15 of the filter device 2; the top of the side surface of the ozone reaction kettle 1 is provided with a sewage inlet 11 and an ozone water inlet 13, the bottom of the side surface of the reaction kettle 1 is provided with a COD detection head 19 and a sewage outlet 12, and the sewage outlet 12 flows to the ozone generation head 6 and then enters the ozone water inlet 13; the waste residue collector 4 is in an inverted cone shape, an opening at the upper end of the waste residue collector is connected with the bottom of the ozone reaction kettle 1, reaction waste residues 8 in the ozone reaction kettle 1 fall into the waste residue collector 4 at the bottom of the waste residue collector under the action of gravity, a reflux baffle 17 is arranged in the waste residue collector 4, the reflux baffle 17 is connected with a rotary rod 18 which can adjust the self-lifting of the waste residue collector, the top of the rotary rod 18 extends out of the top surface of the ozone reaction kettle 1, a waste residue induction probe 20 for sensing whether the waste residues are full is arranged below the reflux baffle 17, an induction valve 9 is arranged at the bottom of the waste residue collector 4, and the waste residue induction probe 20 is connected with the induction valve 9; the super nano bubble generator 3 is positioned at the bottom of the cavity of the super nano bubble tank 10, the top of the side surface of the super nano bubble tank 10 is provided with a water inlet, and the bottom of the side surface is provided with a water outlet; the water outlet of the super nano bubble tank is connected with the sewage inlet of the ozone reaction kettle through a pipeline; the super nano bubble generator 3 is connected with an air compressor 5 arranged outside the super nano bubble tank through a pipeline; the top of the rotary rod 18 is provided with a scale.
The working principle of the super nano bubble circulating ozone sewage treatment device provided by the embodiment is as follows:
In the super nano bubble circulating ozone sewage treatment device provided by the embodiment, after sewage after the pH value is adjusted in the pretreatment and collector well enters the super nano bubble tank 10, the air compressor 5 continuously blows air to the super nano bubble generator 3 through a pipeline, and the super nano bubbles 7 generated by the super nano bubble generator 3 are continuously discharged into the sewage of the super nano bubble tank. Under the buoyancy of sewage, the super nano bubbles 7 continuously float up and become large, burst, and the bursting tension breaks the molecular bonds of organic matters such as oil stains in the sewage and the like, so that the organic matters are changed into waste residues. After a period of time, sewage in the super nano bubble tank enters the ozone reaction kettle 1 through the outflow port, a certain amount of sewage solution is introduced through the sewage inlet 11 at the top of the side surface of the ozone reaction kettle 1, so that the inside of the ozone reaction kettle 1 is filled with a certain amount of sewage solution, the ozone generation head 6 sucks a certain amount of sewage through the sewage outlet 12 at the bottom of the reaction kettle 1 to serve as an original material for generating ozone gas, and sewage enters the ozone generation head 6 from the sewage outlet 12 and is electrolyzed to generate ozone water, and then enters the ozone reaction kettle 1 from the ozone water inlet 13 to degrade the sewage. The degraded organic pollutants become reaction waste residues 8 and automatically settle in the waste residue collector 4 to be collected, the backflow baffle 17 helps to gather the waste residues and prevent the waste residues from backflushing back to the ozone reaction kettle along with water flow in the process of stirring sewage, when the waste residue induction probe 20 senses that the waste residues are piled up to the backflow baffle 17, the induction valve 9 is opened to discharge the waste residues, the induction valve is closed again after the waste residues are discharged, and the waste residues are continuously collected (a small amount of sewage is discharged together in the process of discharging the waste residues when the induction valve 9 is opened, and the sewage flows back to the water collecting well to enter the subsequent treatment process). The height of the reflux baffle 17 is adjusted through a rotary rod 18, the scale of the height of the reflux baffle 17 is arranged on the rotary rod, so that the height of the reflux baffle is adjusted according to the size degree and the quantity of waste residue particles, the purpose of controlling the distance between the reflux baffle 17 and the inner wall of a waste residue collector to restrict waste residue reflux is achieved, and the range of the ratio of the distance between the reflux baffle 17 and the inner wall of the waste residue collector to the cross-sectional area of the ozone reaction kettle is 1: (1-1000).
Detecting the COD value of sewage in real time through the COD detection head 19, stopping preparing ozone by the ozone reaction kettle when the COD value of the sewage reaches the treatment requirement, opening a valve of the purified water outlet 14, enabling degraded and filtered water to flow out through the purified water outlet 14, adsorbing residual waste residues and small molecular particles in the water into pores in a filtering membrane of the filtering device 2, and enabling the water flowing out of the purified water outlet 14 to enter a subsequent sedimentation tank for sedimentation, pH adjustment and standard discharge; when the purified water outlet 14 is not used for discharging water, the valve of the purified water outlet 14 is closed, the valve of the three-way valve 16 is opened, the back flushing pump 15 is opened, the filtering membrane is back flushed (the back flushing water can be tap water or other water but not original sewage), the waste residues and small molecular particles attached to the pores in the filtering membrane are flushed out of the filtering membrane, and automatically settled in the waste residue collector 4 under the action of gravity to be collected.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (6)
1. A super nano bubble circulating ozone sewage treatment method is characterized by comprising the following steps:
s1, after pretreatment, sewage enters a water collecting well, and hydrogen peroxide or an acid-base modifier is added to adjust the pH value of the sewage, so that the pH value of the sewage in the water collecting well meets the requirement of subsequent sewage treatment;
S2, performing super nano bubble treatment, circulating ozone treatment and filtering treatment on the sewage with the adjusted pH value, precipitating, and adjusting the pH value to reach the emission standard;
The super nano bubble generator adopted in the super nano bubble treatment takes a conductive nano diamond film as a bubble generation plane; the circulating ozone water in the circulating ozone treatment is derived from sewage in the ozone reaction kettle, and returns to the ozone reaction kettle after passing through an ozone generating head, wherein the ozone generating head sucks a certain amount of sewage through a sewage outlet at the bottom of the ozone reaction kettle to be used as an original material for generating ozone gas, the sewage water enters the ozone generating head from the sewage outlet and is electrolyzed to generate ozone water, and then enters the ozone reaction kettle from an ozone water inlet to degrade the sewage;
the super nano bubble circulating ozone sewage treatment method is realized by the following devices:
The device comprises an ozone reaction kettle, an ozone generating head, a super nano bubble generator, a filtering device and a waste residue collector; the super nano bubble generator and the filtering device are positioned at the inner bottom of the cavity of the ozone reaction kettle, the top of the super nano bubble generator is communicated with the bottom of the filtering device, the inside of the filtering device extends a purified water outlet towards the outside of the ozone reaction kettle, and the purified water outlet is provided with a three-way valve which is connected with a backwash pump of the filtering device; the top of the side surface of the ozone reaction kettle is provided with a sewage inlet and an ozone water inlet, the bottom of the side surface of the reaction kettle is provided with a COD detection head and a sewage outlet, and the sewage outlet flows to the ozone generation head and then enters the ozone water inlet; the waste residue collector is in an inverted cone shape, an opening at the upper end of the waste residue collector is connected with the bottom of the ozone reaction kettle, reaction waste residues in the ozone reaction kettle fall into the waste residue collector at the bottom of the ozone reaction kettle under the action of gravity, a reflux baffle is arranged in the waste residue collector, the reflux baffle is connected with a rotating rod capable of adjusting the self-lifting of the waste residue collector, the top of the rotating rod extends out of the top surface of the ozone reaction kettle, a waste residue induction probe for sensing whether waste residues are fully accumulated is arranged below the reflux baffle, an induction valve is arranged at the bottom of the waste residue collector, and the waste residue induction probe is connected with the induction valve; the super nano bubble generator is connected with an air compressor arranged outside the ozone reaction kettle through a pipeline;
Or the device comprises an ozone reaction kettle, an ozone generating head, a super nano bubble generator, a super nano bubble tank, a filtering device and a waste residue collector; the filtering device is positioned at the inner bottom of the cavity of the ozone reaction kettle, the inside of the filtering device extends to the outside of the ozone reaction kettle to form a purified water outlet, the purified water outlet is provided with a three-way valve, and the three-way valve is connected with a backwash pump of the filtering device; the top of the side surface of the ozone reaction kettle is provided with a sewage inlet and an ozone water inlet, the bottom of the side surface of the reaction kettle is provided with a COD detection head and a sewage outlet, and the sewage outlet flows to the ozone generation head and then enters the ozone water inlet; the waste residue collector is in an inverted cone shape, an opening at the upper end of the waste residue collector is connected with the bottom of the ozone reaction kettle, reaction waste residues in the ozone reaction kettle fall into the waste residue collector at the bottom of the ozone reaction kettle under the action of gravity, a reflux baffle is arranged in the waste residue collector, the reflux baffle is connected with a rotating rod capable of adjusting the self-lifting of the waste residue collector, the top of the rotating rod extends out of the top surface of the ozone reaction kettle, a waste residue induction probe for sensing whether waste residues are fully accumulated is arranged below the reflux baffle, an induction valve is arranged at the bottom of the waste residue collector, and the waste residue induction probe is connected with the induction valve; the super nano bubble generator is positioned at the bottom of the cavity of the super nano bubble tank, the top of the side surface of the super nano bubble tank is provided with a water inlet, and the bottom of the side surface is provided with a water outlet; the water outlet of the super nano bubble tank is connected with the sewage inlet of the ozone reaction kettle through a pipeline; the super nano bubble generator is connected with an air compressor arranged outside the super nano bubble tank through a pipeline;
And S2, the super nano bubble treatment, the circulating ozone treatment and the filtering treatment are sequentially carried out, or the three are simultaneously carried out, or the super nano bubble treatment and the circulating ozone treatment are simultaneously carried out and then the filtering treatment is carried out, or the super nano bubble treatment is firstly carried out and then the circulating ozone treatment and the filtering treatment are simultaneously carried out.
2. The method for treating the ultra-nano bubble circulating ozone sewage according to claim 1, which is characterized by comprising the following steps: the adjustment in S1 is carried out on the pH value of the sewage by using hydrogen peroxide generated by a hydrogen peroxide generator; the pretreatment is that sewage sequentially passes through a grating and an oil separation tank; the pH value required by the subsequent sewage treatment is 3.0-6.0.
3. The method for treating the ultra-nano bubble circulating ozone sewage according to claim 1, which is characterized by comprising the following steps: the bubbles generated by the super nano bubble generator in the S2 are super nano bubbles with the diameter smaller than 1 mu m; the concentration of the circulating ozone water which passes through the ozone generating head and returns to the ozone reaction kettle is 0.5-20 ppm.
4. The method for treating the ultra-nano bubble circulating ozone sewage according to claim 1, which is characterized by comprising the following steps: the filtering device adopted in the filtering treatment in the S2 comprises a filtering membrane, wherein the diameter of a filtering micropore on the surface of the filtering membrane is 0.1-1 mu m, and the number of layers is determined according to specific conditions: in the conventional water quality sewage treatment process, the average area of the filtering membrane corresponding to sewage per m 3 is 2.5-5.0 m 2.
5. The method for treating the ultra-nano bubble circulating ozone sewage according to claim 4, which is characterized in that: the filtering membrane is made of ceramic or porous titanium material.
6. The method for treating the ultra-nano bubble circulating ozone sewage according to claim 1, which is characterized by comprising the following steps: the number of the ozone generating heads is 1-3; the top of the rotary rod is provided with scales.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204111393U (en) * | 2014-09-25 | 2015-01-21 | 庄冰梅 | A kind of papermaking sewage treatment system |
| CN106277178A (en) * | 2016-08-05 | 2017-01-04 | 北京未名清源环保科技有限公司 | A kind of micro-nano bubble degradation treatment system and method containing organic pollution water body |
| CN106315822A (en) * | 2016-10-21 | 2017-01-11 | 华东交通大学 | Ozone-ultra-micron air bubble-filtering system and ozone-ultra-micron air bubble-filtering method |
| CN209974394U (en) * | 2018-07-23 | 2020-01-21 | 广东上智环保科技有限公司 | Super nanometer bubble circulation ozone sewage treatment plant |
| CN209974395U (en) * | 2018-07-23 | 2020-01-21 | 广东上智环保科技有限公司 | Super nanometer bubble circulation ozone sewage treatment plant |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202079073U (en) * | 2011-05-11 | 2011-12-21 | 深圳市神州创宇低碳技术有限公司 | Real-time treatment system using high-energy oxygen for hydrolyzing and oxidizing organic biomass |
| CN107337326A (en) * | 2017-09-06 | 2017-11-10 | 江西博鑫精陶环保科技有限公司 | A kind of ceramic membrane aeration and pressure-fired ozone film reused water processing method and processing unit |
-
2018
- 2018-07-23 CN CN201810814240.3A patent/CN108911242B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204111393U (en) * | 2014-09-25 | 2015-01-21 | 庄冰梅 | A kind of papermaking sewage treatment system |
| CN106277178A (en) * | 2016-08-05 | 2017-01-04 | 北京未名清源环保科技有限公司 | A kind of micro-nano bubble degradation treatment system and method containing organic pollution water body |
| CN106315822A (en) * | 2016-10-21 | 2017-01-11 | 华东交通大学 | Ozone-ultra-micron air bubble-filtering system and ozone-ultra-micron air bubble-filtering method |
| CN209974394U (en) * | 2018-07-23 | 2020-01-21 | 广东上智环保科技有限公司 | Super nanometer bubble circulation ozone sewage treatment plant |
| CN209974395U (en) * | 2018-07-23 | 2020-01-21 | 广东上智环保科技有限公司 | Super nanometer bubble circulation ozone sewage treatment plant |
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