CN111704291A - Efficient treatment system and treatment process for benzofuranone wastewater - Google Patents
Efficient treatment system and treatment process for benzofuranone wastewater Download PDFInfo
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- CN111704291A CN111704291A CN202010339773.8A CN202010339773A CN111704291A CN 111704291 A CN111704291 A CN 111704291A CN 202010339773 A CN202010339773 A CN 202010339773A CN 111704291 A CN111704291 A CN 111704291A
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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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- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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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
- C02F1/52—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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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
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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
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
Abstract
The invention relates to a high-efficiency treatment system for benzofuranone wastewater, which comprises a precision filter, wherein the water outlet of the precision filter is connected with a primary resin adsorption tower, one side of the primary resin adsorption tower is connected with a clean water tank, the other side of the primary resin adsorption tower is connected with a rectification tower, the wastewater outlet of the primary resin adsorption tower is connected with a sedimentation tank through a pipeline, the sedimentation tank is connected with a secondary resin adsorption tower, circulating pumps are arranged between the secondary resin adsorption tower and the clean water tank as well as between the primary resin adsorption tower and the clean water tank, a reflux device is arranged between the secondary resin adsorption tower and the sedimentation tank, the water outlet of the secondary resin adsorption tower is connected with an intermediate water tank, the intermediate water tank is used for delivering water to an evaporative crystallization system by using a pump body, and the evaporative crystallization system is connected. The invention has the advantages that: the adopted resin combined adsorption process removes organic pollutants in the wastewater, and simultaneously can remove key pollutants in the wastewater, namely the copper octohydroxyquinoline.
Description
Technical Field
The invention relates to the field of efficient treatment of benzofuranone wastewater, in particular to a system and a process for efficiently treating benzofuranone wastewater.
Background
Many kinds of pollutants are generated in industrial production, and the kinds and the concentrations of the pollutants generated in different industries are obviously different. The chemical treatment method is a wastewater treatment method for separating, removing or converting pollutants in a dissolved or colloidal state in wastewater into harmless substances through chemical reaction and mass transfer. In the chemical treatment method, the treatment units based on chemical reaction generated by adding medicaments are as follows: coagulation, neutralization, redox, etc.; the treatment units based on mass transfer have: extraction, steam stripping, air stripping, adsorption, ion exchange, electrodialysis, reverse osmosis and the like.
At present, for the domestic treatment of benzofuranone wastewater, basic advanced oxidation treatment means and the like are difficult to remove organic matters in the wastewater, so that a high-efficiency treatment system and a treatment process for the benzofuranone wastewater need to be researched.
Disclosure of Invention
The invention provides a system and a process for efficiently treating benzofuranone wastewater to solve the problems.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a system for efficiently treating benzofuranone wastewater, which comprises a precision filter, a primary resin adsorption tower, a rectifying tower, a clean water tank, a sedimentation tank and a secondary resin adsorption tower, the water outlet of the precision filter is connected with a primary resin adsorption tower, one side of the primary resin adsorption tower is connected with a clean water tank, the other side of the primary resin adsorption tower is connected with a rectifying tower, the waste water port of the first-stage resin adsorption tower is connected with a sedimentation tank through a pipeline, the sedimentation tank is connected with a second-stage resin adsorption tower, circulating pumps are arranged between the second-stage resin adsorption tower and the first-stage resin adsorption tower and the clean water tank, a reflux device is arranged between the secondary resin adsorption tower and the sedimentation tank, the water outlet of the secondary resin adsorption tower is connected with an intermediate water tank, the middle water tank sends water to the evaporative crystallization system by utilizing the pump body, and the evaporative crystallization system is connected with the biochemical treatment unit.
And a filter press for cleaning sludge is arranged in the sedimentation tank.
The first-stage resin adsorption tower adopts JD-015 adsorption resin to carry out first-stage adsorption treatment, and the second-stage resin adsorption tower adopts chelating copper-removing resin to carry out second-stage adsorption treatment.
A high-efficiency treatment process of benzofuranone wastewater comprises the following steps:
the method comprises the following steps: after the wastewater is filtered by a precision filter, the wastewater is subjected to primary adsorption treatment by JD-015 adsorption resin to attach macromolecular organic matters
Step two: after the resin is adsorbed and saturated, methanol is used for desorption, and adsorbed organic matters are removed;
step three: after desorption, cleaning with clean water, recycling the clean water, rectifying the clean water and desorption liquid in a rectifying tower after the clean water reaches a certain concentration, recycling methanol, and treating tower bottom liquid as solid waste;
step four: adding alkali into the wastewater after the primary resin adsorption to adjust the pH value to about 8.5, coagulating and precipitating, directly feeding the supernatant into a secondary resin adsorption tower for treatment, and removing copper resin by chelation;
step five: after the resin is adsorbed and saturated, desorbing by using acid liquor to remove the adsorbed impurities;
step six: after desorption, returning the desorption solution to a coagulating sedimentation tank to remove copper ions; cleaning the resin with clear water, and returning the cleaning water to the coagulation sedimentation tank after recycling to remove copper ions;
step seven: and cleaning the resin with clear water, and recycling the cleaning water to the coagulation sedimentation tank to remove copper ions. And (3) introducing the effluent of the secondary resin adsorption tower into an intermediate water tank, pumping the effluent into an evaporative crystallization system, introducing the evaporated condensate into a biochemical treatment unit, and extracting the salt.
The invention has the advantages that:
the adopted resin combined adsorption process can effectively remove organic pollutants in the wastewater and can also remove key pollutants, namely octohydroxyquinoline copper in the wastewater, so that the chromaticity of the wastewater reaches the standard;
effectively avoiding the copper-ammonium complex formed in the traditional oxidation process and avoiding the technical difficulty that the copper-ammonium complex is difficult to remove in the traditional oxidation process;
the treated effluent is basically colorless and transparent, and the salt after evaporative crystallization has high quality and can be effectively recycled;
the treated water can reach the standard of industrial water, and the effluent can be recycled by enterprises, so that the wastewater amount of the enterprises is effectively reduced.
Drawings
FIG. 1 is a schematic structural diagram of a system for efficiently treating benzofuranone wastewater and a treatment process thereof.
FIG. 2 is a process flow diagram of the system and process for efficiently treating benzofuranone wastewater.
As shown in the figure: 1. the device comprises a precision filter, 2, a first-stage resin adsorption tower, 3, a rectifying tower, 4, a clean water tank, 5, a sedimentation tank, 6, a second-stage resin adsorption tower, 7, a circulating pump, 8, a reflux device, 9, an intermediate water tank, 10, a pump body, 11, an evaporative crystallization system, 12, a biochemical treatment unit, 13 and a filter press.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
A high-efficiency treatment system for benzofuranone wastewater comprises a precision filter 1, a primary resin adsorption tower 2, a rectifying tower 3, a clean water tank 4, a sedimentation tank 5 and a secondary resin adsorption tower 6, wherein a water outlet of the precision filter 1 is connected with the primary resin adsorption tower 2, one side of the primary resin adsorption tower 2 is connected with the clean water tank 4, the other side of the primary resin adsorption tower 2 is connected with the rectifying tower 3, a wastewater outlet of the primary resin adsorption tower 2 is connected with the sedimentation tank 5 through a pipeline, the sedimentation tank 5 is connected with the secondary resin adsorption tower 6, circulating pumps 7 are respectively arranged between the secondary resin adsorption tower 6 and the primary resin adsorption tower 2 and between the clean water tank 4, a reflux device 8 is arranged between the secondary resin adsorption tower 6 and the sedimentation tank 5, a water outlet of the secondary resin adsorption tower 6 is connected with an intermediate water tank 9, the intermediate water tank 9 utilizes a pump body 10 to send water to an evaporative crystallization system 11, the evaporative crystallization system 11 is connected with a biochemical treatment unit 12.
And a filter press 13 for cleaning sludge is arranged in the sedimentation tank 5.
The first-stage resin adsorption tower 2 adopts JD-015 adsorption resin to carry out first-stage adsorption treatment, and the second-stage resin adsorption tower 6 adopts chelating copper-removing resin to carry out second-stage adsorption treatment.
A high-efficiency treatment process of benzofuranone wastewater comprises the following steps:
the method comprises the following steps: after the wastewater is filtered by a precision filter, the wastewater is subjected to primary adsorption treatment by JD-015 adsorption resin to attach macromolecular organic matters
Step two: after the resin is adsorbed and saturated, methanol is used for desorption, and adsorbed organic matters are removed;
step three: after desorption, cleaning with clean water, recycling the clean water, rectifying the clean water and desorption liquid in a rectifying tower after the clean water reaches a certain concentration, recycling methanol, and treating tower bottom liquid as solid waste;
step four: adding alkali into the wastewater after the primary resin adsorption to adjust the pH value to about 8.5, coagulating and precipitating, directly feeding the supernatant into a secondary resin adsorption tower for treatment, and removing copper resin by chelation;
step five: after the resin is adsorbed and saturated, desorbing by using acid liquor to remove the adsorbed impurities;
step six: after desorption, returning the desorption solution to a coagulating sedimentation tank to remove copper ions; cleaning the resin with clear water, and returning the cleaning water to the coagulation sedimentation tank after recycling to remove copper ions;
step seven: and cleaning the resin with clear water, and recycling the cleaning water to the coagulation sedimentation tank to remove copper ions. And (3) introducing the effluent of the secondary resin adsorption tower into an intermediate water tank, pumping the effluent into an evaporative crystallization system, introducing the evaporated condensate into a biochemical treatment unit, and extracting the salt.
The working principle of the invention is as follows: firstly, wastewater passes through a precision filter, and then primary adsorption treatment is carried out by JD-015 adsorption resin, the resin can mainly adsorb macromolecular organic matters, and after the resin is saturated in adsorption, methanol is used for desorption to remove the adsorbed organic matters. And after desorption, cleaning with clean water, recycling the clean water, rectifying the clean water and desorption liquid in a rectifying tower after the clean water reaches a certain concentration, recycling the methanol, and treating tower bottom liquid as solid waste. Adding alkali into the wastewater after the primary resin adsorption to adjust the pH value to about 8.5, coagulating and precipitating, directly feeding the supernatant into a secondary resin adsorption tower for treatment, removing copper resin by chelation, and desorbing with acid liquor after the resin is saturated in adsorption to remove the adsorbed impurities. After desorption, returning the desorption solution to a coagulating sedimentation tank to remove copper ions; and cleaning the resin with clear water, and recycling the cleaning water to the coagulation sedimentation tank to remove copper ions. And (3) introducing the effluent of the secondary resin adsorption tower into an intermediate water tank, pumping the effluent into an evaporative crystallization system, introducing the evaporated condensate into a biochemical treatment unit, and extracting the salt.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides a benzofuranone waste water high efficiency processing system which characterized in that: it comprises a precision filter (1), a first-stage resin adsorption tower (2), a rectifying tower (3), a clean water tank (4), a sedimentation tank (5) and a second-stage resin adsorption tower (6), wherein a water outlet of the precision filter (1) is connected with the first-stage resin adsorption tower (2), one side of the first-stage resin adsorption tower (2) is connected with the clean water tank (4), the other side of the first-stage resin adsorption tower (2) is connected with the rectifying tower (3), a waste water port of the first-stage resin adsorption tower (2) is connected with the sedimentation tank (5) through a pipeline, the sedimentation tank (5) is connected with the second-stage resin adsorption tower (6), circulating pumps (7) are arranged between the second-stage resin adsorption tower (6) and the clean water tank (4), a reflux device (8) is arranged between the second-stage resin adsorption tower (6) and the sedimentation tank (5), the water outlet of the second-stage resin adsorption tower (6) is connected with, the middle water tank (9) sends water to an evaporative crystallization system (11) by using a pump body (10), and the evaporative crystallization system (11) is connected with a biochemical treatment unit (12).
2. The system for efficiently treating benzofuranone wastewater according to claim 1, wherein the system comprises: a filter press (13) for cleaning sludge is arranged in the sedimentation tank (5).
3. The system for efficiently treating benzofuranone wastewater according to claim 1, wherein the system comprises: the first-stage resin adsorption tower (2) adopts JD-015 adsorption resin to carry out first-stage adsorption treatment, and the second-stage resin adsorption tower (6) adopts chelating copper-removing resin to carry out second-stage adsorption treatment.
4. A high-efficiency treatment process of benzofuranone wastewater is characterized by comprising the following steps: it comprises the following steps:
the method comprises the following steps: after the wastewater is filtered by a precision filter, the wastewater is subjected to primary adsorption treatment by JD-015 adsorption resin to attach macromolecular organic matters
Step two: after the resin is adsorbed and saturated, methanol is used for desorption, and adsorbed organic matters are removed;
step three: after desorption, cleaning with clean water, recycling the clean water, rectifying the clean water and desorption liquid in a rectifying tower after the clean water reaches a certain concentration, recycling methanol, and treating tower bottom liquid as solid waste;
step four: adding alkali into the wastewater after the primary resin adsorption to adjust the pH value to about 8.5, coagulating and precipitating, directly feeding the supernatant into a secondary resin adsorption tower for treatment, and removing copper resin by chelation;
step five: after the resin is adsorbed and saturated, desorbing by using acid liquor to remove the adsorbed impurities;
step six: after desorption, returning the desorption solution to a coagulating sedimentation tank to remove copper ions; cleaning the resin with clear water, and returning the cleaning water to the coagulation sedimentation tank after recycling to remove copper ions;
step seven: and cleaning the resin with clear water, and recycling the cleaning water to the coagulation sedimentation tank to remove copper ions. And (3) introducing the effluent of the secondary resin adsorption tower into an intermediate water tank, pumping the effluent into an evaporative crystallization system, introducing the evaporated condensate into a biochemical treatment unit, and extracting the salt.
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| CN202010339773.8A CN111704291A (en) | 2020-04-26 | 2020-04-26 | Efficient treatment system and treatment process for benzofuranone wastewater |
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| CN202010339773.8A CN111704291A (en) | 2020-04-26 | 2020-04-26 | Efficient treatment system and treatment process for benzofuranone wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908690A (en) * | 2020-08-10 | 2020-11-10 | 常熟理工学院 | Treatment method of methyl carbamate wastewater |
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2020
- 2020-04-26 CN CN202010339773.8A patent/CN111704291A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908690A (en) * | 2020-08-10 | 2020-11-10 | 常熟理工学院 | Treatment method of methyl carbamate wastewater |
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