CN113149369A - Environment-friendly sewage treatment method for textile production - Google Patents
Environment-friendly sewage treatment method for textile production Download PDFInfo
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- CN113149369A CN113149369A CN202110538923.2A CN202110538923A CN113149369A CN 113149369 A CN113149369 A CN 113149369A CN 202110538923 A CN202110538923 A CN 202110538923A CN 113149369 A CN113149369 A CN 113149369A
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- sewage
- filter screen
- introducing
- tank
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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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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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
- C02F1/54—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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
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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
- C02F3/02—Aerobic processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to the technical field of sewage treatment, and discloses an environment-friendly sewage treatment method for textile production, which comprises the following steps: A. introducing sewage into a filter pipe, filtering large particle impurities and impurities in the sewage through a coarse filter screen in the filter pipe, and filtering small particle impurities in the sewage through a fine filter screen in the filter pipe; B. and (3) introducing the filtered sewage into an adjusting tank, uniformly scattering sodium hydroxide into the adjusting tank, and adjusting the pH value of the sewage to 4. The method has ideal treatment effect on the sewage, adopts a microbial degradation mode to biodegrade organic matters in the sewage, reduces the probability of secondary pollution of water quality, can timely clear flocculate in the sewage, prevents water body turbidity, ensures the quality of the water quality, has high treatment efficiency and low input cost, does not produce other pollutants, and has certain market popularization prospect.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to an environment-friendly sewage treatment method for textile production.
Background
The sewage treatment is a process for purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage, the sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, the sewage treatment also increasingly enters the daily life of common people, more sewage is generated in the textile production process, and the sewage can be discharged after being treated.
However, the existing method has an unsatisfactory sewage treatment effect, is difficult to effectively remove organic matters in sewage, is easy to cause secondary pollution, has more flocculates in sewage, and can cause turbidity of water if not removed in time, thereby affecting water quality. Therefore, the technical personnel in the field provide an environment-friendly sewage treatment method for textile production, so as to solve the problems in the background technology.
Disclosure of Invention
The invention aims to provide an environment-friendly sewage treatment method for textile production, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an environment-friendly sewage treatment method for textile production comprises the following steps:
A. introducing sewage into a filter pipe, filtering large particle impurities and impurities in the sewage through a coarse filter screen in the filter pipe, and filtering small particle impurities in the sewage through a fine filter screen in the filter pipe;
B. introducing the filtered sewage into an adjusting tank, uniformly scattering sodium hydroxide into the adjusting tank, and adjusting the pH value of the sewage to 4;
C. introducing the sewage in the regulating reservoir into a flocculation tank, and preparing the following raw materials in parts by weight: 18-24 parts of potassium permanganate, 2.2-2.8 parts of calcium carbonate, 9-13 parts of aluminum sulfate and 0.6-0.9 part of polyacrylamide, uniformly mixing the raw materials, pouring the mixture into a reaction kettle for reaction for 30-40 min to obtain a mixed solution, putting the mixed solution into a flocculation tank, continuously stirring for 1.5-2 h, standing for 50min, separating flocculate from sewage, and pumping out the upper-layer sewage through a pump;
D. pumping the upper layer sewage in the flocculation tank into a microorganism tank, adding 82-88 parts by mass of aerobic bacteria and 12-18 parts by mass of anaerobic bacteria, and continuously introducing oxygen into the bottom of the flocculation tank through an oxygen generator to perform aerobic reaction;
E. and (3) introducing the sewage subjected to aerobic reaction in the microorganism pool into a disinfection pool, adding hydrogen peroxide to ensure that the concentration of the hydrogen peroxide in the sewage is 0.4-0.8 mmol/L, fully stirring for 20-50 min, standing for 1.5-3.5 h, and discharging.
As a still further scheme of the invention: sealing rings are installed between the coarse filter screen and the filter pipe and between the fine filter screen and the filter pipe, the coarse filter screen is located at the front side of the fine filter screen, and the distance between the coarse filter screen and the fine filter screen is 1.5 m.
As a still further scheme of the invention: and D, before the sewage in the step E is discharged, uniformly scattering sodium hydroxide into the sewage, and adjusting the pH value of the sewage to be 7.
As a still further scheme of the invention: and B, when the PH value of the sewage is regulated in the step B, the PH value of the sewage is tested in real time by a PH tester, and when the error of the result measured by the PH tester is 0.1-0.3, the addition of the sodium hydroxide can be stopped.
As a still further scheme of the invention: when the reaction kettle reacts the raw materials, the raw materials are stirred, wherein the stirring speed is 800-.
As a still further scheme of the invention: the separation method of the flocculate and the sewage in the step C comprises the following steps: putting a filter membrane with the thickness of 0.2-0.5 mm on the sewage, continuously pressing the filter membrane downwards, wherein clear water in the sewage seeps out through the filter membrane in the pressing process, and then pumping out the clear water on the upper layer of the filter membrane through the pump body.
As a still further scheme of the invention: the oxygen outlet end of the oxygen generator is connected with an oxygen outlet pipe, one end of the oxygen outlet pipe is connected with ten groups of oxygen outlet nozzles, and the ten groups of oxygen outlet nozzles are all installed at the bottom of the flocculation tank.
As a still further scheme of the invention: after sodium hydroxide is uniformly scattered into the adjusting tank, stirring is carried out for 10-20 min, then random sampling is carried out, and the pH value of the sewage is detected and then is introduced into the flocculation tank.
Compared with the prior art, the invention has the beneficial effects that: the method has ideal treatment effect on the sewage, adopts a microbial degradation mode to biodegrade organic matters in the sewage, reduces the probability of secondary pollution of water quality, can timely clear flocculate in the sewage, prevents water body turbidity, ensures the quality of the water quality, has high treatment efficiency and low input cost, does not produce other pollutants, and has certain market popularization prospect.
Detailed Description
In embodiment 1 of the present invention, an environment-friendly sewage treatment method for textile production includes the following steps:
A. introducing sewage into a filter pipe, filtering large particle impurities and impurities in the sewage through a coarse filter screen in the filter pipe, and filtering small particle impurities in the sewage through a fine filter screen in the filter pipe;
B. introducing the filtered sewage into an adjusting tank, uniformly scattering sodium hydroxide into the adjusting tank, and adjusting the pH value of the sewage to 4;
C. introducing the sewage in the regulating reservoir into a flocculation tank, and preparing the following raw materials in parts by weight: 20 parts of potassium permanganate, 2.4 parts of calcium carbonate, 10 parts of aluminum sulfate and 0.7 part of polyacrylamide, uniformly mixing the raw materials, pouring the mixture into a reaction kettle for reaction for 32min to obtain a mixed solution, putting the mixed solution into a flocculation tank, continuously stirring for 1.72h, standing for 50min, separating flocculate from sewage, and pumping out upper-layer sewage through a pump body;
D. pumping the upper layer sewage in the flocculation tank into a microorganism tank, adding 84 parts of aerobic bacteria and 14 parts of anaerobic bacteria in parts by mass, and continuously introducing oxygen into the bottom of the flocculation tank through an oxygen generator to perform aerobic reaction;
E. and (3) introducing the sewage subjected to aerobic reaction in the microorganism pool into a disinfection pool, adding hydrogen peroxide to ensure that the concentration of the hydrogen peroxide in the sewage is 0.5mmol/L, fully stirring for 30min, standing for 2h and then discharging.
Preferably: sealing rings are respectively arranged between the coarse filter screen and the filter pipe and between the fine filter screen and the filter pipe, the coarse filter screen is positioned at the front side of the fine filter screen, and the distance between the coarse filter screen and the fine filter screen is 1.5 m.
Preferably: and D, before the sewage in the step E is discharged, uniformly scattering sodium hydroxide into the sewage, and adjusting the pH value of the sewage to be 7.
Preferably: and B, when the PH value of the sewage is regulated in the step B, the PH value of the sewage is also tested in real time through a PH tester, and when the error of the result measured by the PH tester is 0.15, the addition of the sodium hydroxide can be stopped.
Preferably: when the reaction kettle reacts the raw materials, the raw materials are stirred, wherein the stirring speed is 900r/min, and the temperature of the reaction kettle is controlled to be 60 ℃ during the stirring process.
Preferably: the separation method of the flocculate and the sewage in the step C comprises the following steps: the filter membrane that is 0.3mm with thickness is put on sewage, continuously pushes down the filter membrane, and the in-process of pushing down, the clear water in the sewage passes through the filter membrane and oozes, and the clear water of rethread pump body with the filter membrane upper strata is taken out can.
Preferably: the oxygen outlet end of the oxygen generator is connected with an oxygen outlet pipe, one end of the oxygen outlet pipe is connected with ten groups of oxygen outlet nozzles, and the ten groups of oxygen outlet nozzles are all installed at the bottom of the flocculation tank.
Preferably: after sodium hydroxide is uniformly scattered into the adjusting tank, the adjusting tank is stirred for 12min, then random sampling is carried out, and the pH value of the sewage is detected and then is introduced into the flocculation tank.
In embodiment 2 of the present invention, an environment-friendly sewage treatment method for textile production comprises the following steps:
A. introducing sewage into a filter pipe, filtering large particle impurities and impurities in the sewage through a coarse filter screen in the filter pipe, and filtering small particle impurities in the sewage through a fine filter screen in the filter pipe;
B. introducing the filtered sewage into an adjusting tank, uniformly scattering sodium hydroxide into the adjusting tank, and adjusting the pH value of the sewage to 4;
C. introducing the sewage in the regulating reservoir into a flocculation tank, and preparing the following raw materials in parts by weight: 22 parts of potassium permanganate, 2.7 parts of calcium carbonate, 12 parts of aluminum sulfate and 0.85 part of polyacrylamide, uniformly mixing the raw materials, pouring the mixture into a reaction kettle for reaction for 38min to obtain a mixed solution, putting the mixed solution into a flocculation tank, continuously stirring for 1.9h, standing for 50min, separating flocculate from sewage, and pumping out upper-layer sewage through a pump body;
D. pumping the upper layer sewage in the flocculation tank into a microorganism tank, adding 87 parts by mass of aerobic bacteria and 17 parts by mass of anaerobic bacteria, and continuously introducing oxygen into the bottom of the flocculation tank through an oxygen generator to perform aerobic reaction;
E. and (3) introducing the sewage subjected to aerobic reaction in the microorganism pool into a disinfection pool, adding hydrogen peroxide to ensure that the concentration of the hydrogen peroxide in the sewage is 0.65mmol/L, fully stirring for 45min, standing for 2.5h and then discharging.
Preferably: sealing rings are respectively arranged between the coarse filter screen and the filter pipe and between the fine filter screen and the filter pipe, the coarse filter screen is positioned at the front side of the fine filter screen, and the distance between the coarse filter screen and the fine filter screen is 1.5 m.
Preferably: and D, before the sewage in the step E is discharged, uniformly scattering sodium hydroxide into the sewage, and adjusting the pH value of the sewage to be 7.
Preferably: and B, when the PH value of the sewage is regulated in the step B, the PH value of the sewage is also tested in real time by a PH tester, and when the error of the result measured by the PH tester is between 0.25, the addition of the sodium hydroxide can be stopped.
Preferably: when the reaction kettle reacts the raw materials, the raw materials are stirred, wherein the stirring speed is 1000r/min, and the temperature of the reaction kettle is controlled to be 75 ℃ during the stirring process.
Preferably: the separation method of the flocculate and the sewage in the step C comprises the following steps: the filter membrane that is 0.45mm with thickness is put on sewage, continuously pushes down the filter membrane, and the in-process of pushing down, the clear water in the sewage passes through the filter membrane and oozes, and the clear water of rethread pump body with the filter membrane upper strata is taken out can.
Preferably: the oxygen outlet end of the oxygen generator is connected with an oxygen outlet pipe, one end of the oxygen outlet pipe is connected with ten groups of oxygen outlet nozzles, and the ten groups of oxygen outlet nozzles are all installed at the bottom of the flocculation tank.
Preferably: after sodium hydroxide is uniformly scattered into the adjusting tank, stirring is carried out for 18min, then random sampling is carried out, and the pH value of the sewage is detected and then is introduced into the flocculation tank.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (8)
1. An environment-friendly sewage treatment method for textile production is characterized by comprising the following steps:
A. introducing sewage into a filter pipe, filtering large particle impurities and impurities in the sewage through a coarse filter screen in the filter pipe, and filtering small particle impurities in the sewage through a fine filter screen in the filter pipe;
B. introducing the filtered sewage into an adjusting tank, uniformly scattering sodium hydroxide into the adjusting tank, and adjusting the pH value of the sewage to 4;
C. introducing the sewage in the regulating reservoir into a flocculation tank, and preparing the following raw materials in parts by weight: 18-24 parts of potassium permanganate, 2.2-2.8 parts of calcium carbonate, 9-13 parts of aluminum sulfate and 0.6-0.9 part of polyacrylamide, uniformly mixing the raw materials, pouring the mixture into a reaction kettle for reaction for 30-40 min to obtain a mixed solution, putting the mixed solution into a flocculation tank, continuously stirring for 1.5-2 h, standing for 50min, separating flocculate from sewage, and pumping out the upper-layer sewage through a pump;
D. pumping the upper layer sewage in the flocculation tank into a microorganism tank, adding 82-88 parts by mass of aerobic bacteria and 12-18 parts by mass of anaerobic bacteria, and continuously introducing oxygen into the bottom of the flocculation tank through an oxygen generator to perform aerobic reaction;
E. and (3) introducing the sewage subjected to aerobic reaction in the microorganism pool into a disinfection pool, adding hydrogen peroxide to ensure that the concentration of the hydrogen peroxide in the sewage is 0.4-0.8 mmol/L, fully stirring for 20-50 min, standing for 1.5-3.5 h, and discharging.
2. The environment-friendly sewage treatment method for textile production as recited in claim 1, wherein the sealing rings are respectively installed between the coarse filter screen and the filter pipe and between the fine filter screen and the filter pipe, the coarse filter screen is located at the front side of the fine filter screen, and the distance between the coarse filter screen and the fine filter screen is 1.5 m.
3. The method of claim 1, wherein before the step E, sodium hydroxide is uniformly added to the wastewater, and the pH of the wastewater is adjusted to 7.
4. The method of claim 1, wherein when the pH of the wastewater is adjusted in step B, the pH of the wastewater is measured by a pH meter in real time, and when the pH value measured by the pH meter is within a range of 0.1-0.3, the addition of sodium hydroxide is stopped.
5. The method as claimed in claim 1, wherein the reaction kettle is adapted to stir the raw materials during the reaction, wherein the stirring speed is 800-1100r/min, and the temperature of the reaction kettle is controlled to be 50-80 ℃ during the stirring process.
6. The method of claim 1, wherein the separation of the flocculate from the waste water in step C comprises: putting a filter membrane with the thickness of 0.2-0.5 mm on the sewage, continuously pressing the filter membrane downwards, wherein clear water in the sewage seeps out through the filter membrane in the pressing process, and then pumping out the clear water on the upper layer of the filter membrane through the pump body.
7. The environment-friendly sewage treatment method for textile production as recited in claim 1, wherein an outlet end of the oxygen generator is connected with an oxygen outlet pipe, one end of the oxygen outlet pipe is connected with ten groups of oxygen outlet nozzles, and the ten groups of oxygen outlet nozzles are all installed at the bottom of the flocculation tank.
8. The environment-friendly sewage treatment method for textile production as claimed in claim 1, wherein after sodium hydroxide is uniformly scattered into the adjusting tank, the adjusting tank is further stirred for 10-20 min, then random sampling is carried out, and the pH value of the sewage is detected and then the sewage is introduced into the flocculation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110538923.2A CN113149369A (en) | 2021-05-18 | 2021-05-18 | Environment-friendly sewage treatment method for textile production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110538923.2A CN113149369A (en) | 2021-05-18 | 2021-05-18 | Environment-friendly sewage treatment method for textile production |
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| CN113149369A true CN113149369A (en) | 2021-07-23 |
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| CN202110538923.2A Pending CN113149369A (en) | 2021-05-18 | 2021-05-18 | Environment-friendly sewage treatment method for textile production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114436471A (en) * | 2022-01-09 | 2022-05-06 | 山东微观生态研究中心有限公司 | Environment-friendly process technology for sewage treatment |
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2021
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| CN114436471A (en) * | 2022-01-09 | 2022-05-06 | 山东微观生态研究中心有限公司 | Environment-friendly process technology for sewage treatment |
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Application publication date: 20210723 |