CN113429045A - Industrial wastewater advanced treatment and cyclic utilization method - Google Patents
Industrial wastewater advanced treatment and cyclic utilization method Download PDFInfo
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- CN113429045A CN113429045A CN202110852607.2A CN202110852607A CN113429045A CN 113429045 A CN113429045 A CN 113429045A CN 202110852607 A CN202110852607 A CN 202110852607A CN 113429045 A CN113429045 A CN 113429045A
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- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 24
- 125000004122 cyclic group Chemical group 0.000 title abstract description 7
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- 239000002351 wastewater Substances 0.000 claims abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
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- 238000003860 storage Methods 0.000 claims description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
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- 239000000661 sodium alginate Substances 0.000 claims description 3
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- 231100001240 inorganic pollutant Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 230000009707 neogenesis Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
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- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46176—Galvanic cells
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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Abstract
The invention discloses a method for advanced treatment and cyclic utilization of industrial wastewater, which comprises the following steps of firstly removing iron ions and hardness in wastewater in a sedimentation tank by utilizing the action of a flocculating agent and a coagulant aid, then introducing the sewage precipitated in the sedimentation tank into a coarse filter tank through a pump body, then introducing the sewage into a deep oxidation tank, fully mixing ozone and the wastewater by utilizing an aeration device, decomposing macromolecular organic matters into micromolecular organic matters, performing primary decomposition, adsorbing the decomposed micromolecular organic matters by utilizing an activated carbon adsorption core in an activated carbon adsorption tank, conveying the adsorbed water into a photocatalytic oxidation tank through the pump body, performing secondary oxidative decomposition on the organic matters in the wastewater, finally filtering in a fine filter tank, conveying the water out by utilizing a circulating pump, and has the beneficial effects that: such device simple structure, convenient operation can carry out dual decomposition to waste water and filter, improves the effect of decomposing the macromolecule into the micromolecule greatly, improves the purifying effect to waste water, and can cyclic utilization.
Description
Technical Field
The invention relates to the technical field of industrial wastewater advanced treatment, in particular to an industrial wastewater advanced treatment and recycling method.
Background
Along with the increasing development of the industry in China, the industrial water consumption is greatly increased, and the industrial production process in China does not have a complete water-saving system, the water quality monitoring and control of each process section is not in place, sectional type and water quality classification treatment cannot be realized, so that the water consumption efficiency and the water reuse rate are low, and the water resource waste is serious. Due to the lack of mature and effective sewage treatment technology and device, the concept of waste water recycling is slightly conscious, and the problem of water resource shortage is prominent. Therefore, the utilization rate of water resources is enhanced, industrial water-saving engineering is implemented, the necessary way for solving the shortage of water resource supply and demand in China is solved, industrial wastewater contains a large amount of high-concentration organic and inorganic pollutants difficult to degrade, and the conventional treatment process has low removal efficiency of the pollutants difficult to degrade, so that various treatment processes need to be combined, the pollutants difficult to degrade are deeply treated in a targeted manner, and the quality of treated effluent is improved and ensured. Realizes the recycling of industrial wastewater, creates unconventional water resources and realizes meaningful zero emission. Therefore, the method can reduce the harm of the waste water to the environment, reduce the water treatment cost and save the production cost by an effective advanced treatment technology, and has important significance for industrial production and water resource protection.
The prior industrial wastewater advanced treatment method comprises the following steps: 1) the membrane separation method has good removal for suspended matters, hardness and salt, but has higher requirement for influent COD, and the problems of blockage, frequent cleaning, frequent replacement of a filtering safety device, strong brine and the like can occur in the direct advanced treatment of industrial wastewater; 2) chemical oxidation methods, including ozone oxidation, fenton oxidation and wet catalytic oxidation, have good treatment effect on partial organic matters and chromaticity, but have poor removal rate on water hardness and salt; 3) adsorption methods, including activated carbon adsorption and resin adsorption, have certain adsorption effects on COD and salts, but are difficult to regenerate and high in operating cost; 4) the biological aerated filter method can only remove part of organic pollutants, and the hardness of water and the removal of salt are not obvious. Therefore, each advanced treatment technology has higher removal rate for a single pollutant, but the complexity of the pollutants in the industrial wastewater cannot meet the target requirement of a single technology, so the recycling rate of the wastewater and the economical efficiency, feasibility and stability of the technology can be ensured only by combining the advantages of the wastewater quality and various technologies.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides an industrial wastewater advanced treatment and recycling method, so as to overcome the technical problems in the prior related art.
The technical scheme of the invention is realized as follows:
an advanced treatment and recycling method of industrial wastewater comprises the following specific steps:
s1: firstly, introducing industrial wastewater into a settling tank, adding Na2CO3 into the settling tank, mixing and stirring by using a stirring motor, adjusting the pH value to 8.5-9.0, precipitating for 2.0-2.5 h, using iron ions in the solution as a flocculating agent, and adding polyacrylamide as a coagulant aid to remove the iron ions and hardness in the wastewater;
s2: introducing the sewage precipitated in the sedimentation tank into a coarse filtration tank through a pump body, and filtering out suspended solid in the sewage through a filter screen in the coarse filtration tank;
s3: introducing the wastewater after coarse filtration into a deep oxidation tank, fully mixing ozone and the wastewater by using an aeration device, and decomposing pollutants which are difficult to decompose by a common sewage biological treatment method by matching with a micro-electrolysis device to decompose macromolecular organic matters into micromolecular organic matters;
s4: introducing the wastewater into an activated carbon adsorption box, injecting air into the activated carbon adsorption box, adsorbing decomposed small molecular organic matters by using an activated carbon adsorption core in the activated carbon adsorption box, and generating a new hydroxyl ion;
s5: the absorbed water is conveyed into a photocatalytic oxidation box through a pump body, and a large amount of hydroxyl free radicals with strong oxidizability are generated from O3 by Ultraviolet (UV) to carry out secondary oxidative decomposition on organic matters in the wastewater;
s6: then the water is poured into a fine filtering tank for filtering to remove oil and a small amount of organic matters in the water, and finally the treated wastewater becomes reclaimed water which flows into a water storage tank as finished water and is conveyed out by a circulating pump.
Furthermore, the matched micro-electrolysis device utilizes the metal filler as an anode and carbon as a cathode, and decomposes the macromolecular organic matters into micromolecular organic matters through the reaction of the anode and the cathode.
Further, the rotational speed of agitator motor is 200 ~ 300 revolutions per minute, just agitator motor's model is QLJ135 agitator motor.
Further, the coagulant aid is any one or more of polyacrylamide, polypropylene, active silicic acid, sodium alginate and sodium carboxymethylcellulose.
The invention provides an industrial wastewater advanced treatment and recycling method, which has the following beneficial effects:
(1) firstly, the action of flocculating agent and coagulant aid is utilized to remove iron ions and hardness in the wastewater in the sedimentation tank, then the sewage precipitated in the sedimentation tank is led into a coarse filter tank through a pump body, solid suspended matters in the wastewater are filtered out through a filter screen in the coarse filter tank and then led into a deep oxidation tank, ozone and the wastewater are fully mixed by an aeration device, a micro-electrolysis device is matched to decompose pollutants which are difficult to be decomposed by a common sewage biological treatment method, macromolecular organic matters are decomposed into micromolecular organic matters for primary decomposition, the decomposed micromolecular organic matters are adsorbed by an activated carbon adsorption core in an activated carbon adsorption tank, the adsorbed water is conveyed into a photocatalytic oxidation tank through the pump body, Ultraviolet (UV) is utilized to enable O3 to generate a large amount of hydroxyl radicals with strong oxidability, and secondary oxidative decomposition is carried out on the organic matters in the wastewater, utilize at last to filter in the smart filtering ponds, utilize the circulating pump to carry away, such device simple structure, convenient operation can carry out dual decomposition to waste water and filter, improves the effect of decomposing the macromolecule into the micromolecule greatly, improves the purifying effect to waste water, and can cyclic utilization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a method for advanced treatment and recycling of industrial wastewater according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The invention is further described with reference to the following drawings and detailed description:
the first embodiment is as follows:
referring to fig. 1, a method for advanced treatment and recycling of industrial wastewater according to an embodiment of the present invention includes the following steps:
s1: firstly, introducing industrial wastewater into a settling tank, adding Na2CO3 into the settling tank, mixing and stirring by using a stirring motor, adjusting the pH value to 8.5-9.0, precipitating for 2.0-2.5 h, using iron ions in the solution as a flocculating agent, and adding polyacrylamide as a coagulant aid to remove the iron ions and hardness in the wastewater;
s2: introducing the sewage precipitated in the sedimentation tank into a coarse filtration tank through a pump body, and filtering out suspended solid in the sewage through a filter screen in the coarse filtration tank;
s3: introducing the wastewater after coarse filtration into a deep oxidation tank, fully mixing ozone and the wastewater by using an aeration device, and decomposing pollutants which are difficult to decompose by a common sewage biological treatment method by matching with a micro-electrolysis device to decompose macromolecular organic matters into micromolecular organic matters;
s4: introducing the wastewater into an activated carbon adsorption box, injecting air into the activated carbon adsorption box, adsorbing decomposed small molecular organic matters by using an activated carbon adsorption core in the activated carbon adsorption box, and generating a new hydroxyl ion;
s5: the absorbed water is conveyed into a photocatalytic oxidation box through a pump body, and a large amount of hydroxyl free radicals with strong oxidizability are generated from O3 by Ultraviolet (UV) to carry out secondary oxidative decomposition on organic matters in the wastewater;
s6: then the water is poured into a fine filtering tank for filtering to remove oil and a small amount of organic matters in the water, and finally the treated wastewater becomes reclaimed water which flows into a water storage tank as finished water and is conveyed out by a circulating pump.
By the scheme, industrial wastewater is introduced into a sedimentation tank, Na2CO3 is added into the flocculation sedimentation tank, a stirring motor is utilized for mixing and stirring, the pH value is adjusted to 8.5-9.0, the wastewater is precipitated for 2.0-2.5 h, iron ions in the solution are utilized as a flocculating agent, polyacrylamide is simultaneously added as a coagulant aid to remove the iron ions and the hardness in the wastewater, the sewage precipitated in the sedimentation tank is introduced into a coarse filtration tank through a pump body, solid suspended matters in the wastewater are filtered out through a filter screen in the coarse filtration tank, the wastewater after coarse filtration is introduced into a deep oxidation tank, ozone and the wastewater are fully mixed by an aeration device, a micro-electrolysis device is matched to decompose pollutants which are difficult to be decomposed by a common sewage biological treatment method, macromolecular organic matters are decomposed into micromolecular organic matters, the wastewater is introduced into an activated carbon adsorption tank, and air is injected into the activated carbon adsorption tank at the same time, utilize the activated carbon adsorption core of activated carbon adsorption incasement to adsorb the micromolecule organic matter of decomposition, generate a neogenesis hydroxyl ion simultaneously, water after will adsorbing is carried the photocatalysis oxidation incasement through the pump body, utilize ultraviolet ray (UV) to make O3 produce the extremely strong hydroxyl free radical of a large amount of oxidability, organic matter to in the waste water carries out secondary oxidation and decomposes, pour water into in the smart filtering ponds again and filter, remove the oil in aquatic and nourish and a small amount of organic matter, the waste water of final treatment becomes the normal water, flow into the storage water tank as the finished product water, utilize the circulating pump to carry away, such device simple structure, and convenient for operation, can carry out dual decomposition to waste water and filter, improve the effect of decomposing the macromolecule into micromolecule greatly, improve the purifying effect to waste water, and can cyclic utilization.
Example two:
as shown in figure 1, firstly, industrial wastewater is introduced into a sedimentation tank, Na2CO3 is added into the flocculation sedimentation tank, a stirring motor is utilized to carry out mixing stirring, the pH value is adjusted to be 8.5-9.0, the wastewater is precipitated for 2.0-2.5 h, iron ions in the solution are utilized as a flocculating agent, polyacrylamide is simultaneously added as a coagulant aid to remove the iron ions and the hardness in the wastewater, the sewage precipitated in the sedimentation tank is introduced into a coarse filtration box through a pump body, solid suspended matters in the wastewater are filtered out through a filter screen in the coarse filtration box, the wastewater after the coarse filtration is introduced into a deep oxidation tank, an aeration device is utilized to fully mix ozone and the wastewater, a micro-electrolysis device is matched to decompose pollutants which are difficult to be decomposed by a common sewage biological treatment method, macromolecular organic matters are decomposed into micromolecular organic matters, the wastewater is introduced into an activated carbon adsorption box, and air is injected into the activated carbon adsorption box at the same time, the decomposed micromolecule organic matter is adsorbed by utilizing the activated carbon adsorption core in the activated carbon adsorption box, a new hydroxyl ion is generated at the same time, the adsorbed water is conveyed into the photocatalytic oxidation box through the pump body, the O3 generates a large amount of hydroxyl free radicals with extremely strong oxidability by utilizing ultraviolet rays (UV), the organic matter in the waste water is subjected to secondary oxidation decomposition, the water is poured into a fine filtering tank for filtering, the oil and a small amount of organic matter in the water are removed, the finally treated waste water becomes reclaimed water which flows into a water storage tank as finished water, the reclaimed water is conveyed out by utilizing a circulating pump, the metal filler is utilized as an anode in cooperation with a micro-electrolysis device, the carbon is utilized as a cathode, the macromolecule organic matter is decomposed into the micromolecule organic matter through the reaction of the anode and the cathode, the function of ozone can be matched, the efficiency and the effect of decomposing the macromolecule organic matter into the micromolecule organic matter are greatly improved, the purification effect is improved.
Example three:
as shown in figure 1, firstly, industrial wastewater is introduced into a sedimentation tank, Na2CO3 is added into the flocculation sedimentation tank, a stirring motor is utilized to carry out mixing stirring, the pH value is adjusted to be 8.5-9.0, the wastewater is precipitated for 2.0-2.5 h, iron ions in the solution are utilized as a flocculating agent, polyacrylamide is simultaneously added as a coagulant aid to remove the iron ions and the hardness in the wastewater, the sewage precipitated in the sedimentation tank is introduced into a coarse filtration box through a pump body, solid suspended matters in the wastewater are filtered out through a filter screen in the coarse filtration box, the wastewater after the coarse filtration is introduced into a deep oxidation tank, an aeration device is utilized to fully mix ozone and the wastewater, a micro-electrolysis device is matched to decompose pollutants which are difficult to be decomposed by a common sewage biological treatment method, macromolecular organic matters are decomposed into micromolecular organic matters, the wastewater is introduced into an activated carbon adsorption box, and air is injected into the activated carbon adsorption box at the same time, adsorbing decomposed micromolecular organic matters by using an activated carbon adsorption core in an activated carbon adsorption box, generating a new hydroxyl ion, conveying the adsorbed water into a photocatalytic oxidation box through a pump body, using Ultraviolet (UV) to enable O3 to generate a large amount of hydroxyl free radicals with extremely strong oxidability, carrying out secondary oxidative decomposition on the organic matters in the wastewater, pouring the water into a fine filtering tank for filtering, removing oil and a small amount of organic matters in the water, finally enabling the treated wastewater to become reclaimed water, flowing into a water storage tank as finished water, and conveying the reclaimed water out by using a circulating pump, wherein the rotating speed of a stirring motor is 200-300 revolutions per minute, and the model of the stirring motor is QLJ 135;
example four:
as shown in figure 1, firstly, industrial wastewater is introduced into a sedimentation tank, Na2CO3 is added into the flocculation sedimentation tank, a stirring motor is utilized to carry out mixing stirring, the pH value is adjusted to be 8.5-9.0, the wastewater is precipitated for 2.0-2.5 h, iron ions in the solution are utilized as a flocculating agent, polyacrylamide is simultaneously added as a coagulant aid to remove the iron ions and the hardness in the wastewater, the sewage precipitated in the sedimentation tank is introduced into a coarse filtration box through a pump body, solid suspended matters in the wastewater are filtered out through a filter screen in the coarse filtration box, the wastewater after the coarse filtration is introduced into a deep oxidation tank, an aeration device is utilized to fully mix ozone and the wastewater, a micro-electrolysis device is matched to decompose pollutants which are difficult to be decomposed by a common sewage biological treatment method, macromolecular organic matters are decomposed into micromolecular organic matters, the wastewater is introduced into an activated carbon adsorption box, and air is injected into the activated carbon adsorption box at the same time, the decomposed micromolecule organic matter is adsorbed by an activated carbon adsorption core in an activated carbon adsorption box, a new hydroxyl ion is generated, the adsorbed water is conveyed into a photocatalytic oxidation box through a pump body, a large amount of hydroxyl free radicals with strong oxidizability are generated by O3 through ultraviolet rays (UV), secondary oxidative decomposition is carried out on the organic matter in the waste water, the water is poured into a fine filtering tank for filtering, oil and a small amount of organic matter in the water are removed, the finally treated waste water becomes reclaimed water, the reclaimed water flows into a water storage tank as finished water, the reclaimed water is conveyed out by a circulating pump, and the coagulant aid is one or more of polyacrylamide, polypropylene, activated silicic acid, sodium alginate and sodium carboxymethylcellulose.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, firstly, the functions of flocculating agent and coagulant aid are utilized to remove iron ions and hardness in the wastewater in the sedimentation tank, then the sewage precipitated in the sedimentation tank is introduced into a coarse filter tank through a pump body, solid suspended matters in the wastewater are filtered out through a filter screen in the coarse filter tank and then introduced into a deep oxidation tank, ozone and the wastewater are fully mixed by an aeration device, a micro-electrolysis device is matched to decompose pollutants which are difficult to be decomposed by a common sewage biological treatment method, macromolecular organic matters are decomposed into micromolecular organic matters to be decomposed for the first time, the decomposed micromolecular organic matters are adsorbed by an activated carbon adsorption core in an activated carbon adsorption tank, the adsorbed water is conveyed into a photocatalytic oxidation tank through the pump body, and Ultraviolet (UV) is utilized to enable O3 to generate a large amount of hydroxyl radicals with strong oxidizing property to carry out secondary oxidative decomposition on the organic matters in the wastewater, utilize at last to filter in the smart filtering ponds, utilize the circulating pump to carry away, such device simple structure, convenient operation can carry out dual decomposition to waste water and filter, improves the effect of decomposing the macromolecule into the micromolecule greatly, improves the purifying effect to waste water, and can cyclic utilization.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The advanced treatment and recycling method of industrial wastewater is characterized by comprising the following specific steps:
s1: firstly, introducing industrial wastewater into a settling tank, adding Na2CO3 into the settling tank, mixing and stirring by using a stirring motor, adjusting the pH value to 8.5-9.0, precipitating for 2.0-2.5 h, using iron ions in the solution as a flocculating agent, and adding polyacrylamide as a coagulant aid to remove the iron ions and hardness in the wastewater;
s2: introducing the sewage precipitated in the sedimentation tank into a coarse filtration tank through a pump body, and filtering out suspended solid in the sewage through a filter screen in the coarse filtration tank;
s3: introducing the wastewater after coarse filtration into a deep oxidation tank, fully mixing ozone and the wastewater by using an aeration device, and decomposing pollutants which are difficult to decompose by a common sewage biological treatment method by matching with a micro-electrolysis device to decompose macromolecular organic matters into micromolecular organic matters;
s4: introducing the wastewater into an activated carbon adsorption box, injecting air into the activated carbon adsorption box, adsorbing decomposed small molecular organic matters by using an activated carbon adsorption core in the activated carbon adsorption box, and generating a new hydroxyl ion;
s5: the absorbed water is conveyed into a photocatalytic oxidation box through a pump body, and a large amount of hydroxyl free radicals with strong oxidizability are generated from O3 by Ultraviolet (UV) to carry out secondary oxidative decomposition on organic matters in the wastewater;
s6: then the water is poured into a fine filtering tank for filtering to remove oil and a small amount of organic matters in the water, and finally the treated wastewater becomes reclaimed water which flows into a water storage tank as finished water and is conveyed out by a circulating pump.
2. The method as claimed in claim 1, wherein the micro-electrolysis device is used to decompose macromolecular organic substances into small molecular organic substances by using metal filler as anode and carbon as cathode.
3. The method as claimed in claim 1, wherein the rotation speed of the stirring motor is 200-300 rpm, and the model of the stirring motor is QLJ 135.
4. The advanced treatment and recycling method of industrial wastewater according to claim 1, wherein the coagulant aid is any one or more of polyacrylamide, polypropylene, active silicic acid, sodium alginate and sodium carboxymethylcellulose.
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