CN1092609C - Method for sewage treatment and its system - Google Patents
Method for sewage treatment and its system Download PDFInfo
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- CN1092609C CN1092609C CN 98101024 CN98101024A CN1092609C CN 1092609 C CN1092609 C CN 1092609C CN 98101024 CN98101024 CN 98101024 CN 98101024 A CN98101024 A CN 98101024A CN 1092609 C CN1092609 C CN 1092609C
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
Abstract
The present invention relates to a method for treating sewage. The method of the present invention comprises the steps: taking out sewage, and atomizing the sewage in a fog state; producing ozone by an ozone generator, mixing the ozone with the atomized sewage for sufficient combination to obtain a mixture in the mixed state of gas and fog; making the mixture pass through an ion generator for oxidation-reduction reaction to produce mixed liquid containing water, gas and other substances by combining with the ozone; pressurizing, the mixed liquid, and then, making the mixed liquid enter a high-pressure reaction tank; separate different kinds of substances from the mixed liquid based on the different specific weights of the mixed liquid. The ion generator is composed of a magnetic field made of natural magnet. In this way, the purpose of water purification is realized.
Description
Field of the invention
The invention relates to sewage treatment, in particular to a sewage treatment method and a sewage treatment device which utilize ozone to carry out chemical combination, decomposition, oxidation and reduction reaction under the condition of a strong magnetic field.
Technical Field
Water, air and food are three major factors of human life and health, are precious resources of human beings and are the spring of life. The water body has a certain self-purification capacity because of the continuous oxidation-reduction reaction by combining with oxygen in the nature, and water pollution occurs when harmful substances in the water exceed the self-purification capacity of the water body. With the development of industry, water pollution is quite common and serious in the world, so that clean water is a vital problem for life and death of human beings. Solving the problem that the pollution of water quality can generate great influence on human society, and the most used method for treating sewage in the world is an oxidation-reduction method. In order to treat a large amount of sewage and accelerate the sewage treatment process, methods such as an ozone method or an aeration method are used to accelerate the oxidation-reduction reaction.
At present, the working principle of treating sewage by using a redox method is to introduce ozone or high-purity oxygen into sewage for aeration, strive for the oxygen ions of the ozone or the oxygen to be fully combined with electrolyte in the sewage, and promote the electrolyte and the oxygen ions dissolved in the sewage to rapidly generate redox reaction, so that other substances in the sewage are neutralized and redox to generate gas or solid other characteristics which can be separated from water. However, since the above method has a problem that the oxidation and reduction processes are long because the ozone or oxygen is in a gaseous state and the wastewater is in a liquid state, it is difficult to sufficiently combine them. In industrial practice, the treatment cycle of the wastewater using the above method is generally long,and the equipment is expensive, the floor space is large, and thus the treatment cost of the wastewater is greatly increased.
In chemical industry, in order to accelerate the speed of oxidation-reduction reaction, an electromagnet is generally adopted to form a strong magnetic field after being electrified, and both reaction parties form an ionic state as soon as possible under the action of the magnetic field.
Disclosure of Invention
The invention aims to provide a sewage treatment method and a sewage treatment system, which realize the function of quickly treating sewage by the simplest structure so as to reduce the sewage treatment cost.
The object of the invention is thus achieved. A sewage treatment method comprises the following treatment processes:
the first step is as follows: taking out the sewage and then carrying out atomization treatment to make the sewage in a fog state; an ozone generator is used to generate ozone and make it fully combine with the mist sewage to form a mist mixing state, the concentration range generated by the ozone generator is 35,000-100,000 ppm, the mixing pressure is 3-4 kg/cm2The mixing concentration of the ozone is not less than 2.5 ppm;
the second step is that: the sewage which is in an aerosol state after being combined with the ozone passes through an ion generator to be combined with the ozone for oxidation-reduction reaction, and mixed liquid containing water, gas and other substances is generated; the ion generator is a closed magnetic field which is columnar, the magnetic field intensity is not less than 3000 high period, and the sewage flow rate is not less than 10L/min;
the third step: the mixed liquid enters a high-pressure reaction tank after being pressurized, gas returns to a water source through an exhaust hole at the upper end of the high-pressure reaction tank by utilizing different specific gravities of the mixed liquid, purified water is discharged from a water outlet, other substances with specific gravities larger than that of the water are discharged from a sewage discharge hole at the lower part, the reaction time of the mixed liquid in the high-pressure reaction tank is not less than 3.5 minutes, and the reaction pressure is 2-12 kg/cm2。
The object of the invention is also achieved by a method for treating sewage, which comprises the following steps:
the first step is as follows: taking out the sewage and then carrying out atomization treatment to make the sewage in a fog state;
the second step is that: inputting atomized sewage into an ion generator, simultaneously generating ozone by an ozone generator and inputting the ozone into the ion generator to be fully combined with the atomized sewage into an aerosol mixing state, wherein the concentration range generated by the ozone generator is 35,000-100,000 ppm, and the mixing pressure is 3-4 kg/cm2The mixing concentration of the ozone is not less than 2.5 ppm;
the third step: the sewage which is combined with the ozone and is in an aerosol state passes through an ion generator to further carry out oxidation-reduction reaction, and mixed liquid containing water, gas and other substances is generated; the ion generator is a closed magnetic field which is columnar, the magnetic field intensity of the closed magnetic field is not less than 3000 gauss, and the sewage flow rate is not less than 10L/min;
the fourth step: the mixed liquid enters a high-pressure reaction tank after being pressurized, gas returns to a water source through an exhaust hole at the upper end of the high-pressure reaction tank by utilizing different specific gravities of the mixed liquid, purified water is discharged from a water outlet, other substances with specific gravities larger than that of the water are discharged from a sewage discharge hole at the lower part, the reaction time of the mixed liquid in the high-pressure reaction tank is not less than 3.5 minutes, and the reaction pressure is 2-12 kg/cm2。
The invention aims to realize the following measures, and the sewage treatment device comprises a sewage intake, a purified water discharge port and an ozone generating device, and is characterized by also comprising a high-speed atomizing device, an ion generator and a high-pressure reaction tank, wherein the devices are connected in series by a closed pipeline; the high-speed atomizing device is arranged at the sewage inlet end of the system, and the atomizing nozzle of the atomizing device and the ozone outlet of the ozone generating device are positioned at the same position; the ion generator is a hollow cylinder with a certain length, and two natural magnets with different polarities are embedded on the inner wall of the hollow cylinder along the axial direction of the cylinder, so that a strong magnetic field is arranged in the hollow cylinder; the output end of the ion generator is connected with the high-pressure reaction tank, the lower end of the high-pressure reaction tank is provided with an inlet, the bottom surface of the high-pressure reaction tank is provided with a sewage discharge port, and the upper end of the high-pressure reaction tank is provided with a gas outlet.
Since the composition of the sewage is complicated, various suspensions, dregs and the like which are not melted in water are often contained in the sewage, and the suspensions and the dregs in the sewage can be completely removed by a filtering and settling method. The practice in the prior art proves that the sewage only containing suspended matters anddregs can reach the purification and discharge standard through a plurality of filtering or precipitation for a certain time; however, in sewage, especially a large amount of industrial wastewater, contains various harmful substances which are dissolved in water or called electrolyte, such as: c6H4(CH3)2C6H5CH3、C2H5OH、CH3(CH2)4CH3、NOX、CN-、CO、H2S、Fe2+、Mn2+… …, and the like. These harmful substances dissolved in water are already combined into a water group molecule by water molecules, so that the problem cannot be solved by a filtering method. However, it is considered that water molecules and water group molecules are 10 in addition to pure water in nature-6～10-12The reaction process of separation, polymerization, re-separation and re-polymerization is carried out at a rate of seconds. The invention utilizes the phenomenon and combines O under the same environment3The oxidation-reduction reaction is sufficient to complete the sewage treatment.
The working principle and effect of the invention are that the sewage is atomized by a high-speed atomizer and then mixed with high-concentration ozone under certain working pressure. As the sewage is in an aerosol state, the combination probability of molecules and ozone is greatly increased, compared with the prior art, the invention provides an environment which is very favorable for being fully combined with the ozone, and creates fully important working conditions for the next reaction process of the ion generator.
The ion generator is a hollow cylinder and has a certain working length, and natural magnets are distributed on the circumference of the inner wall of the ion generator and extend along the axial direction of the ion generator, sothat a strong magnetic field is arranged in the ion generator. Since water in the nature, especially sewage, is electrically conductive, when it passes through a strong magnetic field formed by the ionizer, dissociation of anions and cations occurs, and a natural electric field is formed at the same time. It is known that under the magnetic field and electric field, the structure of water molecules or water molecule groups in sewage is in an unstable ionic state, and because ozone exists in the water molecules or water molecule groups, other substances in the water molecule groups in sewage can be subjected to strong oxidation-reduction, combination and decomposition reactions with ozone, so that the recombination process of the molecular structure is rapidly completed, a mixture of water and other substances is generated, and the purification of water is completed in a very short time. The reaction of various other substances such as those mentioned above is as follows:
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
the reactions listed above are all carried out under conditions which react with high concentrations of ozone, and the present process is not effective for treating certain wastewater containing, for example, fluoride species, due to the structural characteristics of ozone.
The third step of the present invention is to separate the above mixture in a reaction tank. When the mixed liquid enters from the lower part of the reaction tank with certain pressure, a rotational flow state can be formed, in the state, light gas is upwards and discharged from an exhaust hole at the top end of the reaction tank after staying for a period of time by utilizing different specific gravities of various substances in the mixed liquid, the gas returns to the sewage tank, most of the gas is oxygen and ozone which does not completely participate in reaction, the gas can carry out aeration reaction with the sewage in the tank to achieve the full utilization of the ozone, and meanwhile, the gas at the upper end in the reaction tank can further increase the pressure in the reaction tank; the separation of the mixed liquid in the tank is promoted, and the purified water is discharged from a purified water outlet positioned at the upper part; other substances with higher specific gravity are discharged from the sewage discharge port on the bottom surface. Meanwhile, the filter plate made of ceramic microporous materials is arrangedin the reaction tank, so that the pressure in the reaction tank can be further increased, further chemical reaction in the reaction tank is promoted, and the ceramic microporous barrier net plays a role in filtering.
In conclusion, compared with the prior art, the invention has the advantages that: firstly, because the separation of other substances in the sewage occurs in the process of flowing through the system of the invention, the sewage treatment process is very rapid, and tests prove that only a few minutes are needed for treating the sewage by using the method and the system thereof. Secondly, the system of the invention has simple structure, and utilizes the action of natural magnetic field and natural electric field, the power consumption of the whole system is extremely small, thus greatly reducing the power consumption of sewage treatment. And the cost of water treatment is reduced; thirdly, the invention utilizes ozone to react with other substances in the sewage, has the function of bacteria in the reaction process due to the sterilization function of the ozone, can realize the recycling of water after being additionally provided with various filtering devices, and is beneficial to saving water resources; fourthly, other pollutants are not generated in the sewage treatment process, and the recovery of substances in the sewage is facilitated.
Drawings
FIG. 1 is a flowchart of the operation of a first embodiment of the present invention;
FIG. 2 is a schematic system diagram of a first embodiment of the present invention;
FIG. 3 is a flowchart of the operation of a second embodiment of the present invention;
FIG. 4 is a schematic system diagram of a second embodiment of the present invention;
FIG. 5 is a schematic system configuration diagram of a third embodiment of the present invention;
FIG. 6 is a schematic view of the construction of the filter unit of the present invention;
FIG. 7 is a schematic view showing the structure of an ozone mixing device according to the present invention;
FIG. 8 is a schematic view of the structure of an ozone generator according to the present invention;
FIG. 9 is a schematic view of the structure of the ozone generator of the present invention;
FIG. 10 is a schematic view of the structure of an ion separator according to the present invention;
FIG. 11 is a cross-sectional view taken along line A-A of FIG. 8;
FIG. 12 is a second embodiment of the ion separator of the present invention;
FIG. 13 is a schematic view showing the structure of a gas-liquid mixing pump according to the present invention;
FIG. 14 is a schematic diagram of the operation of the gas-liquid mixing pump;
FIG. 15 is a schematic view showing the structure of a high-pressure reaction tank in the present invention;
FIG. 16 is a top view of FIG. 15;
Detailed Description
The invention and its working principle are explained in detail below with reference to examples:
example 1
As shown in fig. 1 and 2, a first embodiment of the present invention is an on-vehicle type sewage treatment machine, which is generally applicable to the treatment of industrial wastewater. The industrial sewage is characterized by strong corrosivity but few suspended matters. Aiming at the characteristic, the sewage treatment device adopted in the embodiment has the following structure, and the system is connected in series by a closed pipeline:
1) the sewage intake 100 has one end connected to a sewage source and the other end connected to the system. A water pump can be arranged at the water intake 100, so that sewage enters the system with certain pressure.
2) A pretreatment apparatus for filtering out dregs and suspended substances not dissolved in water in sewage by using a filter 200. The structure of which can be seen in fig. 6. The filter 200 is made of stainless steel material and has strong corrosion resistance to adapt to industrial sewage with severe working conditions. The filter 200 has a housing 201, a supporting body 202 with a mesh is disposed at the center of the housing 201, a filter net 203 is disposed in the supporting body 202, the filter net 203 is a bag made of polypropylene material, and in this embodiment, the density of the filter net 203 is 100-200 μ. The filter screen 203 is connected to a sewage inlet 204 at the upper end of the housing 201, and sewage passes through the filter screen 203 into the lower end of the housing 201 and out an outlet 205 at the bottom end of the housing 201. The filter 200 has a cover 206 at the upper end thereof, and the cover 206 may have a pressure control device 207 for controlling the operating pressure in the filter 200. In addition, the cover body 206 is opened, so that dregs, suspended matters and the like in the filter screen 203 can be cleaned in time.
3) The structure of the ozone mixing device 300 can be seen in fig. 7. The ozone mixing device 300 comprises a pure oxygen generator 310, an ozone generator 320, an ozone mixing chamber 330 and a high-speed atomization device 340:
A) the pure oxygen generator 310 can be a pure oxygen generatorconventionally used in the industry, and the structure thereof will not be described herein. The pure oxygen generates oxygen with a purity of 90%;
B) the ozone generator 320 has an oxygen inlet 321 connected to the output 311 of the pure oxygen generator 310. In this embodiment, the ozone generator 320 is an ozonex ozone generator manufactured by the japanese microtia field corporation of 124753 and 12513 ント, and the principle of the structure is shown in fig. 9 and 9, and the ozone generator 326 is basically a thin plate body, and is provided with an oxygen inlet 321 and an ozone outlet 325, and a zigzag passage 323 formed by a cooling water passage 322 is provided in the inside thereof, and a titania-based ceramic electrode 324 is provided on a side wall of the passage 323. The ozone generator 320 operates on the principle that the alumina material is used as the discharge electrode 324, so that a large amount of ozone with high concentration can be rapidly generated by pure oxygen in the passage 323. Furthermore, the surface discharge method of alumina is used to generate high-concentration ozone, and the adverse factors caused by the discharge phenomenon can be controlled to the minimum, so that the generated ozone has high purity. And the structure is simple and the volume is small. The ozone generator can generate 50,000-100,000 ppm ozone with high concentration; the cooling water may be provided by a cooling device 327.
C) The high-speed atomizer 340 is connected to the outlet 205 of the filter 200, and the high-speed atomizer 340 is a high-speed atomizer in the prior art, which is not described herein again;
D) the ozone mixing chamber 330 is a closed hollow shell 331 and is located in the side chamber connected to the ozone generator 320, and the ozone outlet 325 and the spray nozzle of the high-speed atomizer are both located in the mixing chamber 330, so that the atomized sewage and ozone are mixed in the mixing chamber 330 to form an aerosol mixture. The ozone mixing chamber 330 is also provided with an outlet 332.
4) The ion separator 400 is constructed as shown in fig. 10, the ion separator 400 is a hollow cylinder 401 having a certain length, wherein both ends of the hollow cylinder 401 are provided with connecting flanges 402, and one end of the connecting flange 402 is connected to the outlet 332 of the ozone mixing chamber 330. Natural magnets 403 with different polarities are distributed and fixed on the circumference of the inner wall of the hollow cylinder 401 of the ion generator 400, as shown in FIG. 11. The natural magnet 403 extends along the axial direction of the ionizer 400, so that a strong magnetic field is provided inside the hollow cylinder 401 of the ionizer 400.
5) The gas-liquid mixing pump 500 has the structure shown in fig. 13 and 14. The pump mainly comprises six main component assemblies, namely a pump body 501 and a pump cover 506, wherein a sealing device 507 is arranged between the pump body 501 and the pump cover 506 and can maintain pressure generated in the pump; the motor shaft 508 penetrating the pump body transmits the torque of the motor 509 to drive the impeller 505 to rotate. The circumference of the impeller 505 is bounded by the axial center and has "chevron" shaped arcuate slots 5052 on both sides, and the circumference of the impeller 505 has radial blades 5051. When the impeller 505 rotates in the pump body 501 by being driven by the blades 5051, a friction force F with the liquid is generated, and the friction force F pumps the liquid in the rotation direction of the liquid; at the same time, the liquid generates a centrifugal force C along the chevron-shaped arc groove on the periphery of the impeller 505, and the centrifugal force C causes a force to transport the liquid crosswise to the rotation direction, so that the liquid flows while forming a vortex in the pump body, and is continuously pressurized, as shown in fig. 14. Under this kind of condition, gas and liquid have reached abundant mixture in the pump body 501, and the experiment proves that the utility model discloses a gas-liquid mixing rate can reach more than 85%.
6) The high-pressure reaction tank 600 is constructed as shown in FIGS. 15 and 16. In this embodiment, the high-pressure reaction tank 600 is mainly constituted by a casing 601, and an inlet 602 is provided at the lower end of the casing 601 and connected to the outlet 504 of the gas-liquid mixing pump 500. The bottom end of the shell 601 is provided with a sewage draining pipe 603, the top end is provided with an exhaust pipe 604, and the upper end close to the shell 601 is provided with a purified water outlet pipe 605. The purified water outlet 605 may be provided with two branches 605A and 605B, wherein the water outlet 605A is connected to the post-treatment device 700, and the water outlet 605B returns to the ozone mixing chamber 330, so that the reaction process can be repeated; the two outlets 605A and 605B are controlled by a solenoid valve. Two layers of filter plates 607 made of ceramic microporous materials may be disposed in the high pressure reaction tank 600, and the filter plates are supported by a stainless steel mesh plate 606.
7) The post-treatment apparatus 700, in the present embodiment, the post-treatment apparatus 700 is used as the filter 200 in the pre-treatment apparatus.
8) One end of the purified water outlet 800 is connected to the post-treatment device 700, and the other end is connected to the discharge end or the purified water using end.
The system can be fixed on a chassis 10, and can be carried on a vehicle or be convenient for the installation of the whole machine.
With the above treatment system, the sewage treatment process of this embodiment is:
1) the pretreatment filtration was carried out by using a filter 200 having an internal working pressure of 2kg/cm in the present example2The filtering pressure is provided by a water pump at the sewage inlet end, and the density of the filter screen is 100-200 mu. The process mainly filters out suspended substances in the sewage to be beneficial to the next sewage atomization treatment;
2) mixing the filtered sewage with gas and fog, atomizing the sewage by a high-speed atomizer 340, inputting the atomized sewage into a gas-liquid mixing cavity 330, inputting the ozone generated by an ozone generator 320 into the mixing cavity 330, adjusting the ozone concentration according to the treated sewage, wherein the adjustment method can adopt pure oxygen concentration adjustmentDegree or method of adjusting the discharge voltage. When the industrial sewage is treated, the adjustment range of the ozone concentration is 50,000-80,000 ppm, and the internal pressure of the mixing cavity 330 is 3.5kg/cm2The mixing concentration with the sewage is not less than 3.5ppm, the pressure in the mixing chamber 330 is determined by the inlet flow and the outlet flow, and a flow meter can be arranged at the outlet 332. Under the above conditions, ozone and atomized sewage can be combined sufficiently, so as to create an excellent reaction condition.
3) In the first reaction, the aerosol mixture generated in the mixing chamber 330 passes through the ionizer 400, and the first reaction process is performed therein. The magnetic field intensity in the ion generator 400 is not less than 3000 gauss, and the sewage flow rate is not less than 10L/min. Under the environment of strong magnetic field and natural electric field generated when sewage passes through, the anion and cation of sewage are dissociated into ion form, and quickly react with ozone and recombine, so that the mixed liquidcomposed of gas, water and other substances is generated.
4) The second reaction, the mixture generated after the first reaction enters the gas-liquid mixing pump 500,meanwhile, ozone is injected into the gas-liquid mixing pump, so that other substances which do not react completely in the ion separator 400 react for the second time in the gas-liquid mixing pump 500, and other substances in the sewage are completely separated. The gas-liquid mixing rate of the gas-liquid mixing pump 500 was 85%, and the outlet pressure of the mixed liquid was 5kg/cm2。
5) Separating reaction, introducing the mixed liquid via the gas-liquid mixing pump 500 into the reaction tank 600 from the lower inlet 602 of the high-pressure reaction tank 600, wherein the working pressure of the inlet of the reaction tank 600 can be 5kg/cm2The mixed liquid is spirally upward under the pressure, in this state, the light gas is upward by utilizing the different specific gravity of various substances in the mixed liquid, and after staying for a period of time, the gas is discharged from the exhaust pipe 604 at the top end of the reaction tank 600 and returns to the sewage tank, most of the gas is oxygen and ozone which does not completely participate in the reaction, and can carry out aeration reaction with the sewage in the tank, thereby achieving the full utilization of the ozone, and meanwhile, the gas at the upper end in the reverse tank can further increase the pressure in the reaction tank 600Force; the mixed liquid in the groove is promoted to be separated, and the purified water is discharged from a purified water outlet 605 at the upper part; other materials having a higher specific gravity are discharged from the sewage drain pipe 603 on the bottom surface. The separation reaction time in the high-pressure reaction tank 600 is 5min to 6 min.
6) Post-treatment filtration, the process is the same as the pre-treatment filtration, and is completed by using a filter 200, the density of a filter screen is 10-50 mu, and the working pressure in the filter is 3.5kg/cm2Therefore, the post-treatment filtering process can further purify the sewage and realize the recycling of the water.
Experiments prove that the industrial sewage treated by the treatment process can completely reach the national first-class discharge standard, and the treatment capacity reaches 2T-15T/h.
Example 2
Referring to fig. 3 and 4, a second embodiment of the present invention is a stationary sewage treatment apparatus, which is generally suitable for treatment of domestic wastewater. The domestic sewage is characterized by large treatment capacity, more dregs and suspended matters in the sewage, but the content of other substances fused in the sewage is lower than that of industrial wastewater. Aiming at the characteristics of domestic sewage, the sewage treatment device adopted in the embodiment has the following structure,
1) the pretreatment apparatus employs a sedimentation tank 900. This sedimentation tank 900 can be located at domestic sewage's discharge end, and dregs and suspended solid in domestic sewage carry out the sedimentation treatment in this sedimentation tank 900 at first.
2) One end of the sewage intake 100 is located in the sedimentation tank 900, and a water pump 101 may be provided at the intake 100 to pump the sewage from the sedimentation tank 900.
3) The pure oxygen generator 310 and the ozone generator 320 have the same structure as that of embodiment 1, and are not described herein.
4) The structure and operation of the ion separator 400 are the same as those of example 1. The difference is that the front flange 402 of the ion separator 400is connected to the high-speed atomization device 340, the atomized sewage directly enters the ion separator 400, and the ozone generated by the ozone generator 320 is directly input into the ion separator 400 through a closed pipeline, so that the atomized sewage and the ozone are mixed and react in the ion separator 400. The structure and operation principle of the ion separator 400 are the same as above. In consideration of the characteristic of large domestic sewage treatment capacity, the present embodiment employs more than two ion separators 400 to increase the sewage treatment capacity.
5) The gas-liquid mixing pump 500. The structure and the operation principle thereof are the same as those of embodiment 1.
6) The high-pressure reaction tank 600 has the same structure as described above. The sewage draining pipe 603 can be connected with a sludge drying tank 910, the tail end of the exhaust pipe 604 is connected with an aeration pipe 606, and the aeration pipe 606 is arranged at the bottom of the sedimentation tank 900. The purified water outlet 605 discharges the purified water into the discharge tank 920, and discharges the water after slight precipitation.
By using the treatment system in the embodiment, the sewage treatment process is as follows:
1) pre-treating the sediment to obtain a sediment,
2) mixing and first reaction, atomizing the precipitated sewage by a high-speed atomizer 340, directly inputting the atomized sewage into an ion separator 400, and inputting ozone generated by an ozone generator 320 into the ion separator 400 for first reaction, wherein the first reaction process and principle are the same as those in example 1. The magnetic field intensity in the ion generator 400 is not less than 3900 gauss, and the sewage flow rate is 500L/min.
3) The second reaction was carried out in the gas-liquid mixing pump 500, the gas-liquid mixing ratio of the gas-liquid mixing pump 500 was 85%, and the outlet pressure of the mixed liquid was 7kg/cm2。
4) The separation reaction takes place in the high-pressure reaction tank 600, and the working pressure at the inlet of the reaction tank 600 can be 7kg/cm2The separation reaction time in the high-pressure reaction tank 600 is less than 6 min.
Experiments prove that the domestic sewage treated by the treatment process can completely reach the national first-class discharge standard, and the treatment capacity is 720T/day.
Example 3
Fig. 5 is a schematic view of the system structure of the present embodiment. The embodiment is suitable for water purification treatment in aquaculture industry. The development of artificial aquaculture industry has led to the continuous deterioration of water quality around farms, and the resulting deterioration of water quality has led to the proliferation of a large amount of BOD, which has led to the promotion of algae generation, decreased water transparency, or the occurrence of offensive odor. For this situation, the present invention can adopt the following system structure:
1) a sewage intake 100, a water pump 101 can be arranged at the intake 100, and water is directly pumped from the farm.
2) The pure oxygen generator 310 and the ozone generator 320 have the same structure as that of embodiment 1, and are not described herein.
3) The structure and operation of the ion separator 400 are the same as those of example 2. The water is atomized by the high-speed atomization device 340 and directly enters the ion separator 400, and the ozone generated by the ozone generator 320 is directly input into the ion separator 400 through a closed pipeline, so that the atomized sewage and the ozone are mixed and react in the ion separator 400. The present embodiment employs more than two ion separators 400 to increase the water treatment capacity.
4) The high-pressure reaction tank 600 has the same structure as described above. The sewage draining pipe 603 can be connected with a sludge drying tank 910, the tail end of the exhaust pipe 604 is connected with an aeration pipe 606, and the aeration pipe 606 is arranged at the bottom of the farm tank. The purified water outlet 605 still discharges the purified water into the farm tank.
By using the treatment system in the embodiment, the sewage treatment process is as follows:
1) taking water, the pressure of the water taking pump is 2kg/cm2；
2) Mixing and first reaction, wherein the extracted water is directly input into the ion separator 400 after or without being atomized by a high-speed atomizer 340, and ozone generated by the ozone generator 320 is input into the ion separator 400 for first reaction, and the first reaction process and principle are the same as those of the example 2. The magnetic field intensity in the ion generator 400 is not less than 18000-24000 gauss, and the sewage flow rate is more than 500L/min.
3) Separating reaction, directly introducing water from ion separator 400 into reaction tank 600, and working pressure at inlet of reaction tank 600 may be7kg/cm2And the separation reaction time in the high-pressure reaction tank 600 was 4 min.
Experiments prove that the embodiment can circularly carry out purification treatment when treating the water in the culture, completely eliminates a great amount of BOD proliferation different from drug treatment, is beneficial to preventing the proliferation of bacteria and infectious diseases in a culture farm, reduces fish diseases, can clear dirt in a pond through a sewage disposal pond, and is an indispensable product for environmental purification.
Claims (20)
1. A sewage treatment method comprises the following treatment processes:
the first step is as follows: taking out the sewage and then carrying out atomization treatment to make the sewage in a fog state; an ozone generator is used to generate ozone and make it fully combine with the mist sewage to form a mist mixing state, the concentration range generated by the ozone generator is 35,000-100,000 ppm, the mixing pressure is 3-4 kg/cm2The mixing concentration of the ozone is not less than 2.5 ppm;
the second step is that: the sewage which is in an aerosol state after being combined with the ozone passes through an ion generator to be combined with the ozone for oxidation-reduction reaction, and mixed liquid containing water, gas and other substances is generated; the ion generator is a closed magnetic field which is columnar, the magnetic field intensity of the closed magnetic field is not less than 3000 gauss, and the sewage flow rate is not less than 10L/min;
the third step: the mixed liquid enters a high-pressure reaction tank after being pressurized, gas returns to a water source through an exhaust hole at the upper end of the high-pressure reaction tank by utilizing different specific gravities of the mixed liquid, purified water is discharged from a water outlet, other substances with specific gravities larger than that of the water are discharged from a sewage discharge hole at the lower part, the reaction time of the mixed liquid in the high-pressure reaction tank is not less than 3.5 minutes, and the reaction pressure is 2-12 kg/cm2。
2. The method of claim 1, wherein the wastewater is atomized and introduced into a closed device, ozone is introduced into the closed device to combine the ozone with the ozone, and the ozone is introduced into the ionizer through a closed channel.
3. A sewage treatment method comprises the following treatment processes:
the first step is as follows: taking out the sewage and then carrying out atomization treatment to make the sewage in a fog state;
the second step is that: inputting atomized sewage into an ion generator, simultaneously generating ozone by an ozone generator and inputting the ozone into the ion generator to be fully combined with the atomized sewage into an aerosol mixing state, wherein the concentration range generated by the ozone generator is 35,000-100,000 ppm, and the mixing pressure is 3-4 kg/cm2The mixing concentration of the ozone is not less than 2.5 ppm;
the third step: the sewage which is combined with the ozone and is in an aerosol state passes through an ion generator to further carry out oxidation-reduction reaction, and mixed liquid containing water, gas and other substances is generated; the ion generator is a closed magnetic field which is columnar, the magnetic field intensity of the closed magnetic field is not less than 3000 gauss, and the sewage flow rate is not less than 10L/min;
the fourth step: the mixed liquid enters a high-pressure reaction tank after being pressurized, gas returns to a water source through an exhaust hole at the upper end of the high-pressure reaction tank by utilizing different specific gravities of the mixed liquid, purified water is discharged from a water outlet, other substances with specific gravities larger than that of the water are discharged from a sewage discharge hole at the lower part, the reaction time of the mixed liquid in the high-pressure reaction tank is not less than 3.5 minutes, and the reaction pressure is 2-12 kg/cm2。
The sewage is atomized and then directly enters an ion generator, and ozone is directly input into the ion generator to be combined.
4. A method for treating wastewater according to claim 1 or 3, wherein the closed magnetic field of said ionizer is a natural magnetic field formed by corresponding natural magnets disposed along the axial direction of said ionizer.
5. The method of claim 1 or 3, wherein the mixed liquid from the ion generator is introduced into the high-pressure reaction tank through a gas-liquid mixing pump, the pressure of the mixed liquid at the outlet of the gas-liquid mixing pump is equal to the working pressure in the high-pressure reaction tank, and the gas-liquid mixing rate is 40-90%.
6. A method according to claim 1 or 3, wherein the wastewater is filtered by a filter unit under a pressure of 1-3.5 kg/cm2The diameter of the filter screen is 50-250 μm.
7. A method according to claim 1 or 3, wherein the purified water discharged from the high-pressure reaction tank is filtered by a filter unit under a pressure of 2 to 3.5kg/cm2The diameter of the filter screen is 10-50 μm.
8. A method for treating wastewater according to claim 1 or 3, wherein said ozone generator comprises a pure oxygen generator and an ozone generator, and the purity of pure oxygen generation is not less than 90%; the ozone generating device can adopt a ceramic discharging device.
9. The method of claim 8, wherein the ceramic discharge device is an OzoneRex ozone generator manufactured by Nippon Okinawa Hayata, 12475, 12513 ント, Inc..
10. A sewage treatment device comprises a sewage intake, a purified water discharge port and an ozone generating device, and is characterized by also comprising a high-speed atomizing device, an ion generator and a high-pressure reaction tank, wherein the devices are connected in series by a closed pipeline; the high-speed atomizing device is arranged at the sewage inlet end of the system, and the atomizing nozzle of the atomizing device and the ozone outlet of the ozone generating device are positioned at the same position; the ion generator is a hollow cylinder with a certain length, and two natural magnets with different polarities are embedded on the inner wall of the hollow cylinder along the axial direction of the cylinder, so that a strong magnetic field is arranged in the hollow cylinder; the output end of the ion generator is connected with the high-pressure reaction tank, the lower end of the high-pressure reaction tank is provided with an inlet, the bottom surface of the high-pressure reaction tank is provided with a sewage discharge port, and the upper end of the high-pressure reaction tank is provided with a gas outlet.
11. The wastewater treatment apparatus according to claim 10, wherein said ozone generator is composed of a pure oxygen generator and an ozone generator, and said ozone generator is an OzoneRex ozone generator produced in Japan.
12. The wastewater treatment plant according to claim 10, wherein the ozone outlet and the spray outlet of the high-speed atomizer are both disposed in a closed chamber.
13. The waste water treatment apparatus according to claim 10 or 12, wherein the closed chamber is provided at a side of the ozone generator.
14. The apparatus of claim 10, wherein the high-speed spray nozzle is disposed at an inlet of the ionizer, and the ozone outlet is disposed in the ionizer.
15. The apparatus according to claim 10, wherein a gas-liquid mixing pump is disposed between the ionizer and the high-pressure reaction tank.
16. The apparatus of claim 10, wherein the wastewater inlet port comprises a pre-treatment device, the pre-treatment device being a filtration device or a wastewater sedimentation tank.
17. The apparatus of claim 10, wherein an after-treatment device is disposed between the high-pressure reaction tank and the purified water outlet, and the after-treatment device is a filtering device.
18. The apparatus of claim 10, wherein a pressure increasing device is disposed in the high pressure reaction tank.
19. The wastewater treatment plant according to claim 10, wherein said ozone generator is provided with a cooling device.
20. The sewage treatment plant according to claim 10, wherein the gas-liquid mixing pump comprises a pump body, a pump cover, and a motor shaft penetrating the pump body, and the motor shaft transmits torque of the motor to drive the impeller to rotate, the periphery of the impeller is bounded by the axial center, the two sides of the periphery of the impeller are in a herringbone shape, and the periphery of the impeller is provided with radial blades.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98101024 CN1092609C (en) | 1998-03-17 | 1998-03-17 | Method for sewage treatment and its system |
| JP32723898A JPH11267672A (en) | 1998-03-17 | 1998-11-17 | Treatment of polluted water and system therefor |
| AU52640/99A AU5264099A (en) | 1998-03-17 | 1998-12-10 | Method and apparatus for treating waste water |
| PCT/CN1998/000305 WO1999047458A1 (en) | 1998-03-17 | 1998-12-10 | Method and apparatus for treating waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98101024 CN1092609C (en) | 1998-03-17 | 1998-03-17 | Method for sewage treatment and its system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1229062A CN1229062A (en) | 1999-09-22 |
| CN1092609C true CN1092609C (en) | 2002-10-16 |
Family
ID=5216409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98101024 Expired - Fee Related CN1092609C (en) | 1998-03-17 | 1998-03-17 | Method for sewage treatment and its system |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH11267672A (en) |
| CN (1) | CN1092609C (en) |
| AU (1) | AU5264099A (en) |
| WO (1) | WO1999047458A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2595065A1 (en) * | 2004-11-30 | 2006-06-08 | The Administrators Of The Tulane Educational Fund | Nebulizing treatment method |
| CN103204594A (en) * | 2013-03-11 | 2013-07-17 | 刘恩来 | Sewage treatment system and technique having catalyzing, atomizing and oxidizing functions |
| ITUA20162129A1 (en) * | 2016-03-11 | 2017-09-11 | Giovanni Laudicina | APPARATUS FOR DISINFECTION AND POTABILIZATION OF WATER DENOMINATED "ASTORM". |
| CN110921732A (en) * | 2019-11-14 | 2020-03-27 | 西安重光明宸检测技术有限公司 | Sewage treatment device and method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4124467A (en) * | 1975-12-30 | 1978-11-07 | Pincon Andrew J | Method and apparatus for producing ozone |
| US4645606A (en) * | 1985-04-24 | 1987-02-24 | Ashbrook Clifford L | Magnetic molecular agglomerate reducer and method |
| JPH01262987A (en) * | 1988-04-11 | 1989-10-19 | Hitachi Zosen Corp | Cooling water purifying apparatus |
| AU4627089A (en) * | 1988-11-10 | 1990-05-28 | Larry R. Ramsauer | Water purifying method and apparatus |
| US5130032A (en) * | 1989-10-10 | 1992-07-14 | Sartori Helfred E | Method for treating a liquid medium |
| JPH07313986A (en) * | 1991-08-05 | 1995-12-05 | Seisuke Tanabe | Simple waste fluid treatment apparatus |
| JP3009353B2 (en) * | 1995-08-23 | 2000-02-14 | 幸子 林 | Water treatment method and water treatment equipment |
-
1998
- 1998-03-17 CN CN 98101024 patent/CN1092609C/en not_active Expired - Fee Related
- 1998-11-17 JP JP32723898A patent/JPH11267672A/en not_active Withdrawn
- 1998-12-10 AU AU52640/99A patent/AU5264099A/en not_active Abandoned
- 1998-12-10 WO PCT/CN1998/000305 patent/WO1999047458A1/en active Search and Examination
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999047458A1 (en) | 1999-09-23 |
| JPH11267672A (en) | 1999-10-05 |
| CN1229062A (en) | 1999-09-22 |
| AU5264099A (en) | 1999-10-11 |
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