CN113336396A - Water-jet loom reuse water treatment process - Google Patents
Water-jet loom reuse water treatment process Download PDFInfo
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- CN113336396A CN113336396A CN202110670438.0A CN202110670438A CN113336396A CN 113336396 A CN113336396 A CN 113336396A CN 202110670438 A CN202110670438 A CN 202110670438A CN 113336396 A CN113336396 A CN 113336396A
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic 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
- C02F1/52—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
- 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
- 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
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/107—Inorganic materials, e.g. sand, silicates
Abstract
The invention discloses a water-jet loom reuse water treatment process, and relates to the technical field of water-jet loom reuse water treatment. The method comprises physicochemical treatment, wherein the filtered wastewater passes through a demulsification tank and an air flotation tank, a pH regulator is added into the demulsification tank for demulsification adjustment, a PAC solution with certain mass concentration is added into the air flotation tank, and after full stirring and coagulation of suspended particulate matters in the wastewater, a PAM solution with certain mass fraction is added, so that flocs in the wastewater are coagulated and enlarged, and the flocs float to the water surface in an air flotation mode; and (4) strengthening treatment, namely strengthening treatment is carried out on the wastewater after the physicochemical treatment in an aeration biological tank, so that small particle suspended matters and grease in the wastewater can be further removed. The invention can remove the grease and the suspended particles in the wastewater together by setting two steps of physical and chemical treatment and strengthening treatment, and the suspended particles can be thoroughly removed.
Description
Technical Field
The invention belongs to the technical field of water-jet loom reuse water treatment, and particularly relates to a water-jet loom reuse water treatment process.
Background
The water-jet loom mainly uses nylon yarn weaving and polyester flat spinning, has great breakthrough in variety limitation along with the rapid development of a synthetic fiber silk-like silk processing technology, has more and more extensive application along with the increase of market demand, needs water flow to carry out injection driving in the working process, has about two tons of daily water consumption, mainly contains grease, suspended particles, jelly and the like in the discharged wastewater, and has the wastewater concentration COD of 100-doped 200 mg/L.
The waste water treatment of the water-jet loom generally adopts a common filtering mode to carry out precipitation treatment on the waste water, the treatment mode can only remove larger suspended particles in the waste water, but a large amount of grease contained in the waste water cannot be treated, and the concentration of anions and cations in the waste water is too high, so that the waste water directly discharges to cause great pollution to the environment; in order to respond to the call for saving water, the waste water after the water jet loom works needs to be treated to obtain reuse water to be continuously used for the work of the water jet loom, so that suspended particles in the water are removed by a common air floatation method in a sewage reuse advanced treatment process.
The existing air floatation treatment method adopted for treating the reuse water of the water-jet loom has the problem that small suspended particles and grease are difficult to remove, so that a water-jet loom reuse water treatment process is provided.
Disclosure of Invention
The invention aims to provide a water-jet loom reuse water treatment process, which solves the problem that existing small suspended particles and grease are difficult to remove.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a water-jet loom reuse water treatment process, which comprises the following four steps;
a. the oil pretreatment is that sewage discharged after the water jet loom works is conveyed to an oil separation tank through a sewage treatment grid by a sewage collection device, larger suspended particles are filtered in the oil separation tank, and the wastewater collection device is used for collecting the wastewater discharged by the water jet loom and uniformly conveying the wastewater to the oil separation tank;
b. performing physicochemical treatment, namely allowing the filtered wastewater to pass through a demulsification tank and an air floatation tank, adding a pH regulator into the demulsification tank for demulsification adjustment, adding a PAC solution with a certain mass concentration into the air floatation tank, fully stirring, adding a PAM solution with a certain mass fraction after suspended particulate matters in the wastewater are condensed, so that flocs in the wastewater are coagulated and enlarged, and floating the flocs to the water surface in an air floatation mode;
c. strengthening treatment, namely strengthening treatment is carried out on the wastewater after the physicochemical treatment in an aeration biological tank, so that small particle suspended matters and grease in the wastewater can be further removed;
d. and (3) sludge collection treatment, wherein suspended particles and flocs in the grease pretreatment and physicochemical treatment enter a dewatering tank through a sludge collection device, sludge is dewatered through a dewatering device, wastewater flows back to an oil separation tank, and the dried sludge is discharged in a centralized manner.
Preferably, the sewage treatment grid is arranged at the water inlet of the oil separation tank and intercepts large-volume impurities in the wastewater.
Preferably, the oil separation tank adopts a partition plate to divide the oil separation tank into two sections, the partition plate is one meter away from the bottom of the tank, after wastewater enters the oil separation tank, grease and larger suspended particles float on the water surface due to low density in the flowing process, the wastewater enters the other section of oil separation tank from a neutral position of the partition plate below, so that the wastewater is conveyed into the demulsification tank through a water outlet pipe, after the wastewater enters the first section of the oil separation tank divided into the two sections, the grease in the wastewater floats upwards, if the wastewater is separated through the partition plate, the retention time of the wastewater in the oil separation tank is prolonged, the wastewater and the grease can be better separated, and a good purification effect is achieved.
Preferably, after the pH regulator is added into the demulsification pool to regulate the pH of the wastewater to 8-9, the demulsifier is added to separate the wastewater from the grease mixed liquid, the separated grease floats to the water surface, and the pH detection equipment is arranged in the demulsification pool to detect the pH value of the wastewater after the pH regulator is added.
Preferably, the concentration of the PAC solution added into the air floatation tank is 6 percent, the concentration of the PAM solution is 4 percent, wherein the volume ratio of the PAC solution to the PAM solution to the wastewater is 2: 1: 60, the PAC solution is added, the PAM solution is added, and after small suspended particles in the wastewater are generated into small flocs through the PAC solution, the PAM solution is added to achieve a better flocculation effect.
Preferably, the reaction time of the wastewater in the air floatation tank is 20-30h, so that the suspended particles can be flocculated for a longer time.
Preferably, a certain amount of biological filter materials are filled in the aeration biological tank in the strengthening treatment, aeration is carried out inside the biological tank, when sewage flows upwards from the bottom of the biological tank, the sewage is quickly purified by utilizing the strong oxidative degradation capability of the filter materials, the filter materials are in a compacted state, and small particle suspended matters in the sewage are intercepted by utilizing the characteristic that the particle size of the filter materials is smaller.
Preferably, the aeration biological tank adopts an upward flow water transportation mode, so that the filter head is arranged at the top of the filter tank, and the aeration biological tank is convenient to maintain.
Preferably, after the dewatering device dewaters the sludge, the dewatered wastewater still contains grease and suspended particulate matters, the wastewater flows back to the oil separation tank again through the water conveying pipeline for treatment, and after the sludge is dewatered, the dried sludge can also be used as filling earthwork in the building engineering.
The invention has the following beneficial effects:
according to the invention, through the two steps of physicochemical treatment and strengthening treatment, grease and suspended particles in the wastewater can be removed together, the suspended particles can be thoroughly removed, the flocculation effect of the suspended particles in the wastewater is better through the adding mode of adding PAC solution and PAM solution, the treated wastewater is subjected to secondary treatment through the aeration biological tank, the wastewater treatment effect is better, volcanic rock filler in the aeration biological tank is low in price, the permeability is good, and the biofilm formation of microorganisms is facilitated, so that the degradation capability of the suspended particles in the wastewater is stronger, the wastewater can be rapidly purified in a short time, and the utilization rate of recycled water is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a process flow diagram of a water-jet loom reuse water treatment process of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the invention is a water-jet loom reuse water treatment process, which comprises the following four steps;
a. the oil pretreatment is that sewage discharged after the water jet loom works is conveyed to an oil separation tank through a sewage treatment grid by a sewage collection device, larger suspended particles are filtered in the oil separation tank, and the wastewater collection device is used for collecting the wastewater discharged by the water jet loom and uniformly conveying the wastewater to the oil separation tank;
b. performing physicochemical treatment, namely allowing the filtered wastewater to pass through a demulsification tank and an air floatation tank, adding a pH regulator into the demulsification tank for demulsification adjustment, adding a PAC solution with a certain mass concentration into the air floatation tank, fully stirring, adding a PAM solution with a certain mass fraction after suspended particulate matters in the wastewater are condensed, so that flocs in the wastewater are coagulated and enlarged, and floating the flocs to the water surface in an air floatation mode;
c. strengthening treatment, namely strengthening treatment is carried out on the wastewater after the physicochemical treatment in an aeration biological tank, so that small particle suspended matters and grease in the wastewater can be further removed;
d. and (3) sludge collection treatment, wherein suspended particles and flocs in the grease pretreatment and physicochemical treatment enter a dewatering tank through a sludge collection device, sludge is dewatered through a dewatering device, wastewater flows back to an oil separation tank, and the dried sludge is discharged in a centralized manner.
Referring to fig. 1, the sewage treatment grid is disposed at the water inlet of the oil interceptor, and intercepts large-volume impurities in the wastewater.
Referring to fig. 1, the oil separation tank is divided into two sections by a partition plate, the partition plate is one meter away from the bottom of the tank, after wastewater enters the oil separation tank, grease and larger suspended particles float on the water surface due to low density in the flowing process, the wastewater enters the other section of the oil separation tank from a neutral position of the partition plate below, the wastewater is conveyed into the demulsification tank through a water outlet pipe, after the wastewater enters the first section of the oil separation tank divided into the two sections, the grease in the wastewater floats upwards, and if the wastewater is separated through the partition plate, the retention time of the wastewater in the oil separation tank is prolonged, so that the wastewater and the grease can be better separated, and a good purification effect is achieved.
Referring to fig. 1, after a pH regulator is added to the inside of the emulsion breaking tank to adjust the pH of the wastewater to 8 to 9, a demulsifier is added to separate the wastewater from the oil-fat mixed liquid, the separated oil floats to the water surface, and a pH detection device is arranged in the emulsion breaking tank to detect the pH value of the wastewater after the pH regulator is added.
Referring to fig. 1, the concentration of the PAC solution added to the air flotation tank is 6% and the concentration of the PAM solution is 4%, wherein the volume ratio of the PAC solution to the PAM solution to the wastewater is 2: 1: 60, the PAC solution is added first, the PAM solution is added, and after fine suspended particles in the wastewater are generated into small flocs by the PAC solution, the PAM solution is added to achieve a better flocculation effect.
Referring to fig. 1, the reaction time of the wastewater in the air flotation tank is 20-30h, which facilitates the more sufficient flocculation time of suspended particles.
Referring to fig. 1, in the enhanced treatment, a certain amount of biological filter material is filled in an aeration biological tank, aeration is performed inside the biological tank, when sewage flows upwards from the bottom of the biological tank, the wastewater is rapidly purified by using the strong oxidative degradation capability of the filter material, the filter material is in a compacted state, and small particle suspended matters in the wastewater are intercepted by using the characteristic that the particle size of the filter material is smaller.
Referring to fig. 1, the biological aerated tank adopts an upward water transportation mode, so that the filter head is arranged at the top of the filter tank, and the biological aerated tank is convenient to maintain.
Referring to fig. 1, after the dewatering device dewaters the sludge, the dewatered wastewater still contains grease and suspended particulate matters, and the wastewater flows back to the oil separation tank again through the water pipeline for treatment, and after the sludge is dewatered, the dried sludge can also be used as filling earthwork in the building engineering.
When the water jet loom is used by personnel, the waste water used by the water jet loom is collected by a waste water collecting device and then is discharged into an oil separating tank through a sewage treatment grid, larger suspended particles in the waste water are filtered by the oil separating tank, the filtered waste water enters a demulsification tank, a pH regulator is added into the demulsification tank, the pH value of the waste water is 8-9 obtained through a pH detection device, a demulsifier is added to reduce oil substances in the waste water, the waste water passes through the inside of an air floatation tank, PAC and PAM solutions with certain concentrations are sequentially added to enable grease and suspended substances in the waste water to flocculate into flocs which float to sleep, the treated waste water is further treated through the inside of an aeration biological tank, the treatment effect is better, finally obtained reuse water is reused in the water jet loom, wherein sludge obtained in the oil separating tank and the physicochemical treatment enters a dehydration tank and is dehydrated through a dehydration device, and the separated wastewater flows back to the interior of the oil separation tank again for continuous treatment.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A water-jet loom reuse water treatment process is characterized in that: comprises the following four steps;
a. the oil pretreatment is that sewage discharged after the water jet loom works is conveyed to an oil separation tank by a sewage collecting device through a sewage treatment grid, and larger suspended particles are filtered in the oil separation tank;
b. performing physicochemical treatment, namely allowing the filtered wastewater to pass through a demulsification tank and an air floatation tank, adding a pH regulator into the demulsification tank for demulsification adjustment, adding a PAC solution with a certain mass concentration into the air floatation tank, fully stirring, adding a PAM solution with a certain mass fraction after suspended particulate matters in the wastewater are condensed, so that flocs in the wastewater are coagulated and enlarged, and floating the flocs to the water surface in an air floatation mode;
c. strengthening treatment, namely strengthening treatment is carried out on the wastewater after the physicochemical treatment in an aeration biological tank, so that small particle suspended matters and grease in the wastewater can be further removed;
d. and (3) sludge collection treatment, wherein suspended particles and flocs in the grease pretreatment and physicochemical treatment enter a dewatering tank through a sludge collection device, sludge is dewatered through a dewatering device, wastewater flows back to an oil separation tank, and the dried sludge is discharged in a centralized manner.
2. The water-jet loom reuse water treatment process according to claim 1, wherein the sewage treatment grid is disposed at the water inlet of the oil separation tank, and the sewage treatment grid intercepts large-volume impurities in the wastewater.
3. The water-jet loom reuse water treatment process as claimed in claim 1, wherein the oil separation tank is divided into two sections by a partition plate, the partition plate is one meter away from the bottom of the tank, after the wastewater enters the oil separation tank, the grease and larger suspended particles float on the water surface due to low density in the flowing process, and the wastewater enters the other section of oil separation tank from the neutral position of the partition plate below, so that the wastewater is conveyed into the breast breaking tank through a water outlet pipe.
4. The water jet loom reuse water treatment process according to claim 1, wherein after a pH regulator is added into the demulsifying pond to adjust the pH of the wastewater to 8-9, a demulsifier is added to separate the wastewater from the oil-fat mixed liquid, and the separated oil floats to the water surface.
5. The water jet loom reuse water treatment process as claimed in claim 1, wherein the concentration of the PAC solution and the concentration of the PAM solution added to the air flotation tank are 6% and 4%, respectively, wherein the volume ratio of the PAC solution to the PAM solution to the wastewater is 2: 1: 60.
6. The process for treating the reuse water of the water-jet loom as claimed in claim 5, wherein the reaction time of the wastewater in the air flotation tank is 20-30 h.
7. The water-jet loom reuse water treatment process as claimed in claim 1, wherein a certain amount of biological filter material is filled in the aeration biological tank in the strengthening treatment, aeration is performed inside the biological tank, the wastewater is rapidly purified by utilizing the strong oxidative degradation capability of the filter material, the filter material is in a compacted state, and small particle suspended matters in the wastewater are intercepted by utilizing the characteristic that the particle size of the filter material is smaller.
8. The water jet loom reuse water treatment process as claimed in claim 7, wherein said aeration biological tank adopts an upward flow water transportation mode.
9. The water-jet loom reuse water treatment process as claimed in claim 1, wherein after the sludge is dewatered by the dewatering device, the dewatered wastewater still contains grease and suspended particulate matters, and the grease and suspended particulate matters are returned to the oil separation tank through the water conveying pipeline for treatment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110670438.0A CN113336396A (en) | 2021-06-17 | 2021-06-17 | Water-jet loom reuse water treatment process |
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| CN202110670438.0A CN113336396A (en) | 2021-06-17 | 2021-06-17 | Water-jet loom reuse water treatment process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114477527A (en) * | 2022-01-14 | 2022-05-13 | 广东闻扬环境科技有限公司 | Workshop cleaning wastewater treatment method and system |
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|---|---|---|---|---|
| CN108821500A (en) * | 2018-05-30 | 2018-11-16 | 苏州原素化纤织造厂 | A kind of sewage water treatment method of water-jet loom |
| CN110156206A (en) * | 2019-05-14 | 2019-08-23 | 苏州高新区苏新立创环境科研技术有限公司 | A kind of process for treating oil-containing waste water |
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2021
- 2021-06-17 CN CN202110670438.0A patent/CN113336396A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821500A (en) * | 2018-05-30 | 2018-11-16 | 苏州原素化纤织造厂 | A kind of sewage water treatment method of water-jet loom |
| CN110156206A (en) * | 2019-05-14 | 2019-08-23 | 苏州高新区苏新立创环境科研技术有限公司 | A kind of process for treating oil-containing waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114477527A (en) * | 2022-01-14 | 2022-05-13 | 广东闻扬环境科技有限公司 | Workshop cleaning wastewater treatment method and system |
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Application publication date: 20210903 |