CN114212868A - Fire-retardant cloth production wastewater treatment system and treatment process - Google Patents
Fire-retardant cloth production wastewater treatment system and treatment process Download PDFInfo
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- CN114212868A CN114212868A CN202210068824.7A CN202210068824A CN114212868A CN 114212868 A CN114212868 A CN 114212868A CN 202210068824 A CN202210068824 A CN 202210068824A CN 114212868 A CN114212868 A CN 114212868A
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 61
- 239000004744 fabric Substances 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004065 wastewater treatment Methods 0.000 title abstract description 26
- 239000002351 wastewater Substances 0.000 claims abstract description 82
- 238000004062 sedimentation Methods 0.000 claims abstract description 71
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 238000001035 drying Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 6
- 238000001556 precipitation Methods 0.000 claims description 46
- 238000003756 stirring Methods 0.000 claims description 20
- 229920002401 polyacrylamide Polymers 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 14
- 239000007864 aqueous solution Substances 0.000 claims description 13
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000000292 calcium oxide Substances 0.000 claims description 5
- 235000012255 calcium oxide Nutrition 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000002699 waste material Substances 0.000 abstract description 17
- 238000004064 recycling Methods 0.000 abstract description 9
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- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 8
- 229910052698 phosphorus Inorganic materials 0.000 description 8
- 239000011574 phosphorus Substances 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 5
- 229910052736 halogen Inorganic materials 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
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- 239000002244 precipitate Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007730 finishing process Methods 0.000 description 2
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- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000012028 Fenton's reagent Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
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- 239000003814 drug Substances 0.000 description 1
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- -1 halogen flame retardant polybrominated diphenyl ether Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010414 supernatant solution Substances 0.000 description 1
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Images
Classifications
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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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
-
- 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
Abstract
The invention relates to the technical field of textile production wastewater treatment, in particular to a flame-retardant cloth production wastewater treatment system. The device comprises a pretreatment system, a primary sedimentation system, a secondary sedimentation system and a water storage tank, wherein the secondary sedimentation system comprises a sedimentation tank, a collection assembly, a heating and drying assembly and a lifting device are arranged in the sedimentation tank, and a door panel assembly is also arranged; the device also comprises a controller and a detection element. The invention has simple structure and convenient use, can realize the purpose of recycling the water and the waste materials in the wastewater, not only saves the production cost, but also is beneficial to environmental protection and has high wastewater treatment efficiency. The invention also provides a treatment process of the waste water produced in the production of the flame-retardant cloth. The wastewater treatment process is simple and easy to implement, is green and environment-friendly, and is worthy of wide popularization and application.
Description
Technical Field
The invention relates to the technical field of textile production wastewater treatment, and particularly relates to a system and a process for treating flame-retardant cloth production wastewater.
Background
With the development of social economy, due to the requirement of fire safety in the fields of electronic and electrical materials, automobiles, high-rise buildings, transportation (high-speed railways and airplanes), and the like, the used materials are forced to be flame-retardant so as to reduce the occurrence of fire and protect the safety of lives and properties of people. It is known that a substance capable of increasing the flame resistance of a material is called a flame retardant, and the flame retardant is regarded as an important material for protecting the safety of human life and property. The halogen flame retardant mainly accounts for 80% of the whole flame retardant in China, and researchers find that the halogen flame retardant polybrominated diphenyl ether and the flame-retardant high polymer thereof generate toxic substances through pyrolysis at high temperature, so that serious challenges are brought to the development of the halogen flame retardant, and the researchers are promoted to develop a low-halogen-free new product to reduce the influence on the environment. The phosphorus flame retardant has the advantages of low smoke, no toxicity, low halogen, no halogen and the like, accords with the long-term development direction, has good development prospect, and therefore the dosage of the phosphorus flame retardant is increased at a high speed. In the textile field, flame retardant finishing is mainly to perform surface treatment on the fabric in the after-finishing process of the textile so that a flame retardant is fixed on the fabric, thereby obtaining the flame retardant effect. Has important significance for preventing fire and reducing casualties and property loss in the fire.
As is well known, the flame retardant finishing can produce waste water in the textile after-finishing process, at present, most of the existing flame retardant fabric production processing plants discharge the waste water produced in the production of the flame retardant fabric to a sewage treatment plant to treat the waste water, few people treat the waste water by themselves by researching a set of flame retardant fabric production waste water treatment system, and the treated waste water and the treated waste material are recycled and reused. When the production wastewater is discharged to a sewage treatment plant for treatment, the production cost is high, and the labor and the time are wasted.
Patent CN 108640418A discloses a method for treating phosphorus-containing organic wastewater in the production process of flame retardant cloth, which comprises the steps of enabling the wastewater in a flame retardant workshop to sequentially pass through a first water collecting tank, a Fenton oxidation tank, an adjusting tank, an air floatation system, a UASB anaerobic biochemical system, a hydrolytic acidification tank and an aerobic system, and discharging the effluent after reaching the standard. The method adopts a combined process of anaerobic treatment and aerobic treatment, and synchronously removes phosphorus in the process of degrading organic matters; hydrogen peroxide remained in workshop production wastewater is used as an oxidant, and a Fenton reagent is formed by adding a catalyst to perform a chemical oxidation reaction, so that the adding of the medicament is reduced, and the operation cost is reduced; combines chemical phosphorus removal and biological phosphorus removal to achieve the synergistic phosphorus removal effect. Although this patent loops through first catch basin, fenton oxidation pond, equalizing basin, air supporting system, UASB anaerobism biochemical system, hydrolysis acidification pond, good oxygen system and handles waste water, goes out water and can reach standard and discharge. However, the patent also has the disadvantages of high treatment cost, complex wastewater treatment process and incapability of realizing the purpose of recycling the waste materials.
As is known, the waste water produced by the production of the flame retardant cloth contains soft acrylic acid rubber, a phosphorus flame retardant, a foaming agent, a wetting agent, a defoaming agent, active carbon and the like, and the waste water is alkaline and cannot meet the discharge requirement. How to separate the water and the waste materials in the waste water and the waste materials can achieve the purpose of recycling, thereby saving the production cost and protecting the environment, and the technical problem which needs to be solved at present is urgently needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the flame retardant cloth production wastewater treatment system and the treatment process, which have the advantages of simple structure, convenience in use, capability of recycling water and waste materials in wastewater, production cost saving, environmental protection benefit and high wastewater treatment efficiency.
The technical scheme adopted by the invention for realizing the purpose is as follows: a fire-retardant cloth production wastewater treatment system comprises a pretreatment system which is used for pretreating wastewater through a conveying pipeline, a primary sedimentation system which is used for carrying out primary sedimentation on the pretreated wastewater, a secondary sedimentation system which is used for carrying out secondary sedimentation on the wastewater after the primary sedimentation is finished, and a water storage tank which is used for storing upper-layer solution after the secondary sedimentation system is settled for recycling, wherein the secondary sedimentation system comprises a sedimentation tank, a collecting component which is used for collecting flocculate generated after the wastewater is settled is arranged in the sedimentation tank, a heating and drying component which is arranged below the sedimentation tank and is used for drying the flocculate collected on the collecting component, and a lifting device which is used for lifting the dried material for collection, and a door panel component is also arranged between the heating and drying component and the sedimentation tank, the door plate assembly comprises two door plates which are symmetrically arranged and used for forming a closed heating chamber between the sedimentation tank and the heating and drying assembly, and a driving assembly used for driving the door plates to open and close; still include the controller to and be used for detecting the detecting element of the interior water yield of sedimentation tank, after detecting that the sedimentation tank internal water is whole to arrange to the tank, send detected signal to controller, the controller sends the signal that is used for controlling the door plant switching to drive assembly.
Foretell fire-retardant cloth waste water treatment system, drive assembly includes hydraulic telescoping rod to and be used for can driving hydraulic telescoping rod when the door plant is opened and retrieve the slip subassembly of dodging, the slip subassembly including set up in spout on the inside wall of airtight heating cavity is provided with the slider with the spout adaptation in the spout to and be used for driving the gliding cylinder of slider in the spout, the slider is connected with hydraulic telescoping rod one end is articulated, hydraulic telescoping rod's the other end is connected with the bottom surface of door plant.
In the fire-retardant cloth production wastewater treatment system, the heating and drying assembly comprises the fin heating pipe arranged at the bottom of the closed heating chamber.
In the above fire-retardant cloth production wastewater treatment system, the collection assembly comprises a collection screen; the lifting device comprises a support frame, a connecting piece fixedly connected with the collecting screen and a power mechanism used for driving the connecting piece to lift.
In the fire-retardant cloth production wastewater treatment system, the connecting piece adopts the chain, and the power mechanism adopts the winch.
According to the fire-retardant cloth production wastewater treatment system, the baffles for collecting residual moisture on the door panel are arranged on the two sides of the fin heating pipe.
The invention also provides a treatment process of the waste water produced by the flame-retardant cloth, which comprises the following steps:
(1) pretreatment: firstly, adding 20-25% of quicklime into a reaction tank in a pretreatment system, and stirring;
(2) primary precipitation treatment: injecting the pretreated wastewater obtained in the step (1) into a primary sedimentation tank of a primary sedimentation system, adding polyaluminium chloride into the primary sedimentation tank, and stirring;
(3) secondary precipitation treatment: injecting the wastewater obtained in the step (2) after the primary precipitation into a precipitation tank of a secondary precipitation system, adding polyacrylamide into the precipitation tank, and stirring to obtain an upper-layer aqueous solution and flocculates precipitated below the precipitation tank;
(4) collecting the upper aqueous solution and the flocculate obtained in step (3).
According to the treatment process of the waste water generated in the production of the flame retardant fabric, before secondary precipitation treatment, the waste water pretreated in the step (1) is subjected to circulating primary precipitation treatment.
In the step (1), the stirring time is 20-30min, the pretreatment time is 48-72h, the mass concentration percentage of Polyacrylamide (PAM) is 0.1%, and the proportion of the addition amount to the wastewater is 20-30%.
In the treatment process of the waste water produced by the flame-retardant cloth, in the step (2), the mass concentration percentage of the polyaluminium chloride (PAC) is 5%, and the proportion of the addition amount to the waste water is 90-95%.
The system for treating the waste water generated in the production of the flame-retardant cloth has the beneficial effects that: compared with the traditional wastewater treatment system, the wastewater treatment system can realize the recycling of wastewater, not only saves the cost, but also can avoid the wastewater from being discharged to pollute the environment, and solves the technical problem which is hoped to be solved by people and is not effectively solved all the time. Firstly, the invention can realize the gradual precipitation of the waste water generated in the production of the flame retardant fabric by arranging the pretreatment system, the primary precipitation system and the secondary precipitation system to obtain the upper-layer aqueous solution and the precipitate, and the precipitate is dried to obtain the waste material, so that the separation of the aqueous solution and the waste material in the waste water is realized, and the upper-layer aqueous solution which is separated and collected can reach the dischargeable grade, so that the separated and collected waste material can be reused, and the collected waste material can be reused for the production of the flame retardant, thereby saving resources and protecting the environment. Secondly, the heating and drying component is arranged, so that flocculate in the sedimentation tank can be directly dried to obtain required waste; then through setting up hoisting device, can promote the waste material out of the sedimentation tank and collect, saved waste water treatment's efficiency greatly. Thirdly, through setting up the controller, can realize the automatic processing of waste water, further improve waste water treatment's efficiency. The invention has simple structure and convenient use, can realize the purpose of recycling the water and the waste materials in the wastewater, not only saves the production cost, but also is beneficial to environmental protection, has high wastewater treatment efficiency and is worthy of wide popularization and application.
Drawings
FIG. 1 is a schematic view showing the construction of a system for treating waste water from the production of flame retardant fabrics in example 1;
FIG. 2 is an enlarged view of part A;
FIG. 3 is a schematic view of the sliding assembly;
FIG. 4 is a flow chart of a treatment process of waste water from the production of flame retardant cloth;
FIG. 5 is a diagram of a sample of the wastewater from the production of flame retardant cloth according to the present invention;
in FIG. 6, (A) shows a turbid state before treatment, and (B) shows a layered state of the supernatant solution and flocs after treatment.
Detailed Description
The invention is further explained in detail with reference to the drawings and the specific embodiments;
example 1
As shown in fig. 1, 2, 3, 4, 5, a fire-retardant cloth waste water treatment system, include the preliminary treatment system who is used for earlier carrying out the preliminary treatment to waste water that sets up through pipeline series connection in proper order, a one-level sedimentation system for carrying out preliminary sedimentation to the waste water after the preliminary treatment, a second grade sedimentation system for carrying out secondary sedimentation again to the waste water after preliminary sedimentation is accomplished to and be used for saving the reservoir 1 of upper solution in order to recycle that the second grade sedimentation system deposits the completion. Wherein, second grade sedimentation system includes sedimentation tank 2, is provided with the collection subassembly that is used for collecting the flocculate that waste water produced after deposiing in sedimentation tank 2, sets up and is used for carrying out the heating drying subassembly of drying to the flocculate of collecting on the collection subassembly in sedimentation tank 2 below to and be used for promoting the hoisting device so that collect with the material that obtains after the stoving.
In order to improve the drying efficiency and realize the purpose that waste water and heating drying assembly in the sedimentation tank are separated, still be provided with the door plant subassembly between heating drying assembly and sedimentation tank 2, wherein, the door plant subassembly includes that two symmetries set up be used for making the sedimentation tank 1 and the heating drying assembly between form a door plant 4 of airtight heating chamber 3 to and be used for driving the drive assembly of door plant 4 switching. The door panel 4 is rotatably connected with the front and rear side walls of the closed heating chamber 3 through a rotating shaft 16, and specifically, the rotating shaft 16 is rotatably connected with the front and rear side walls of the closed heating chamber 3 after penetrating through the door panel 4. The invention also comprises a controller and a detection element for detecting the water amount in the sedimentation tank 2, when the detection element detects that the water in the sedimentation tank 2 is completely discharged to the water storage tank 1, a detection signal is sent to the controller, and the controller sends a signal for controlling the opening or closing of the door panel 4 to the driving component.
In the present embodiment, the driving assembly includes a hydraulic telescopic rod 5, and a sliding assembly for driving the hydraulic telescopic rod 5 to retract when the door panel 4 is opened. The sliding assembly comprises a sliding groove 7 arranged on the inner side wall 6 of the closed heating cavity 3, a sliding block 8 matched with the sliding groove 7 is arranged in the sliding groove 7, and a cylinder 9 used for driving the sliding block 8 to slide in the sliding groove 7, the sliding block 8 is hinged to one end of the hydraulic telescopic rod 5, and the other end of the hydraulic telescopic rod 5 is fixedly connected with the bottom surface of the door plate 4. The heating and drying assembly in this embodiment includes a fin heating pipe 10 disposed at the bottom of the closed heating chamber 3, and the collecting assembly includes a collecting screen 11. And (3) starting a switch for controlling the heating of the fin heating pipe 10, and drying and heating the collecting screen 11 through the fin heating pipe 10. Meanwhile, the lifting device comprises a support frame 12, a connecting piece fixedly connected with the collecting screen 11 and a power mechanism for driving the connecting piece to lift. In this embodiment, the connecting member adopts the chain 13, and the power mechanism adopts the hoist 14, and sets up chain 13 and hoist 14 to 2, increases overall stability. If the main component in the collected waste is activated carbon, when the particle size of the activated carbon is 80 meshes, the collection screen 11 is made of stainless steel, and the mesh number is larger than 80.
In this embodiment, baffles 15 for collecting moisture remaining on the door panel 4 are provided on both sides of the fin heating pipe 10. The arrangement of the baffle 15 can prevent the residual moisture from directly dropping to the fin heating pipe 10 to stimulate the fin heating pipe 10 and shorten the service life of the fin heating pipe. Be provided with the groove 17 of dodging that is used for door plant 4 to provide the dodging space for door plant 4 when airtight heating chamber 3 direction is opened in the below of the inside wall of sedimentation tank, be provided with sealing strip 18 in the outside of dodging the groove, the setting of sealing strip 18 can prevent that the waste water in the sedimentation tank from getting into and dodging in the groove 17.
When the treatment system is used, after the upper solution and the flocculate in the sedimentation tank 2 are layered, the upper solution in the sedimentation tank 2 is firstly discharged into the water storage tank 1, after the solution in the sedimentation tank 2 is completely discharged, the detection element adopted in the embodiment is the weight sensor, when the weight sensor detects that the weight reaches a signal for opening the door plate 4, the detection signal is sent to the controller, the controller sends a signal for the contraction of the cylinder to the cylinder 9, and the cylinder 9 contracts to drive the sliding block 8 to slide downwards in the sliding chute 7, so that the door plate 4 is opened. After the door panel 4 is opened, the winch 14 is started, the chain 13 moves downwards into the closed heating chamber 3, then the switch for controlling the heating of the fin heating pipe 10 is started, and the fin heating pipe 10 dries and heats the collecting screen 11. After drying is completed, the winch 14 reversely lifts the chain 13 upwards to a position where collection is convenient to be performed on the collection screen 11, and then waste materials can be manually collected from the collection screen 11 or collected by intelligent equipment.
The invention also provides a treatment process of the waste water produced by the flame-retardant cloth, which comprises the following steps:
(1) pretreatment: firstly, adding 20% of quicklime into a reaction tank in a pretreatment system, and stirring; specifically, in the step (1), the stirring time is 25min, the pretreatment time is 48h, the mass concentration percentage of Polyacrylamide (PAM) is 0.1%, and the proportion of the addition amount to the wastewater is 20%.
(2) Primary precipitation treatment: injecting the pretreated wastewater obtained in the step (1) into a primary sedimentation tank of a primary sedimentation system, adding polyaluminium chloride into the primary sedimentation tank, and stirring; further, in the step (2), the mass concentration percentage of the polyaluminium chloride (PAC) is 5%, and the adding amount and the proportion of the waste water are 90%.
(3) Secondary precipitation treatment: injecting the wastewater obtained in the step (2) after the primary precipitation into a precipitation tank of a secondary precipitation system, adding polyacrylamide into the precipitation tank, and stirring to obtain an upper-layer aqueous solution and flocculates precipitated below the precipitation tank;
(4) collecting the upper aqueous solution and the flocculate obtained in step (3).
Compared with the traditional wastewater treatment system, the wastewater treatment system can realize the recycling of wastewater, not only saves the cost, but also can avoid the environmental pollution caused by the discharge of the wastewater. Specifically, the treatment process of the invention is detected by making a simple test device, as can be seen from the attached figure 6, (A) is a turbid state before treatment, and (B) is a layered state of an upper layer solution and flocculates after treatment, the upper layer solution obtained after treatment can be recycled and reused in the preparation of the flame retardant, and the pH value of the upper layer solution is detected to be more than 7 by a pH test paper, namely the alkaline water quality is obtained, and meanwhile, the upper layer solution contains a very small amount of the flame retardant. If the upper solution is not needed to be reused, the upper solution can be discharged, but before the upper solution is discharged, the pH value is adjusted by adding phosphoric acid, and the upper solution is discharged after the discharge requirement is met, so that the environmental protection is facilitated. The waste material obtained after drying the precipitate can be recycled and reused in the preparation of the flame retardant to replace part of the active carbon components in the flame retardant, for example, when preparing a new flame retardant, 15% by weight of active carbon is required to be added, 13-14% of the active carbon can be added, and the rest 1-2% of the active carbon is replaced by the waste material obtained by recycling in the invention, so that the purpose of saving raw materials is achieved.
Example 2
The same points as those in example 1 are not described in detail, except that in this example, the wastewater pretreated in step (1) is subjected to a circulating primary precipitation treatment before the secondary precipitation treatment.
The flame-retardant cloth production wastewater treatment process comprises the following steps:
(1) pretreatment: firstly, adding 20% of quicklime into a reaction tank in a pretreatment system, and stirring; specifically, in the step (1), the stirring time is 25min, the pretreatment time is 60h, the mass concentration percentage of Polyacrylamide (PAM) is 0.1%, and the proportion of the addition amount to the wastewater is 25%;
(2) before the secondary precipitation treatment, performing circulating primary precipitation treatment on the wastewater pretreated in the step (1);
(3) primary precipitation treatment: injecting the pretreated wastewater obtained in the step (1) into a primary sedimentation tank of a primary sedimentation system, adding polyaluminium chloride into the primary sedimentation tank, and stirring; further, the mass concentration percentage of the polyaluminium chloride (PAC) is 5 percent, and the proportion of the addition amount to the wastewater is 90 percent;
(4) secondary precipitation treatment: injecting the wastewater obtained in the step (3) after the primary precipitation into a precipitation tank of a secondary precipitation system, adding polyacrylamide into the precipitation tank, and stirring to obtain an upper-layer aqueous solution and flocculates precipitated below the precipitation tank;
(5) collecting the upper aqueous solution and the flocculate obtained in step (4).
Example 3
The same parts as those of the embodiments 1 and 2 are not described in detail, but the other end of the hydraulic telescopic rod 5 is hinged to the bottom surface of the door panel 4 in this embodiment.
The invention relates to a treatment process of waste water generated in flame-retardant cloth production, which comprises the following steps:
(1) pretreatment: firstly, adding 25% of quicklime into a reaction tank in a pretreatment system, and stirring; specifically, in the step (1), the stirring time is 30min, the pretreatment time is 72h, the mass concentration percentage of Polyacrylamide (PAM) is 0.1%, and the proportion of the addition amount to the wastewater is 30%.
(2) Primary precipitation treatment: injecting the pretreated wastewater obtained in the step (1) into a primary sedimentation tank of a primary sedimentation system, adding polyaluminium chloride into the primary sedimentation tank, and stirring; further, in the step (2), the mass concentration percentage of the polyaluminium chloride (PAC) is 5%, and the adding amount and the proportion of the waste water are 95%.
(3) Secondary precipitation treatment: injecting the wastewater obtained in the step (2) after the primary precipitation into a precipitation tank of a secondary precipitation system, adding polyacrylamide into the precipitation tank, and stirring to obtain an upper-layer aqueous solution and flocculates precipitated below the precipitation tank;
(4) collecting the upper aqueous solution and the flocculate obtained in step (3).
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made according to the spirit of the present disclosure should be covered within the scope of the present disclosure.
Claims (10)
1. The utility model provides a fire-retardant cloth waste water processing system which characterized in that: the device comprises a pretreatment system, a primary sedimentation system, a secondary sedimentation system and a water storage tank, wherein the pretreatment system is used for pretreating wastewater through a conveying pipeline, the primary sedimentation system is used for primarily sedimentating the wastewater after the primary sedimentation, the secondary sedimentation system is used for secondarily sedimentating the wastewater after the primary sedimentation, the water storage tank is used for storing an upper solution after the secondary sedimentation system is sedimentated so as to be reused, the secondary sedimentation system comprises a sedimentation tank, a collecting component is arranged in the sedimentation tank and used for collecting flocculate generated after the wastewater is sedimentated, a heating and drying component is arranged below the sedimentation tank and used for drying the flocculate collected on the collecting component, and a lifting device is used for lifting the dried material so as to collect the flocculate, a door panel component is further arranged between the heating and drying component and the sedimentation tank, and the door panel component comprises two door panels which are symmetrically arranged and used for forming a sealed heating chamber between the sedimentation tank and the heating and drying component, the driving component is used for driving the door panel to open and close; still include the controller to and be used for detecting the detecting element of the interior water yield of sedimentation tank, after detecting that the sedimentation tank internal water is whole to arrange to the tank, send detected signal to controller, the controller sends the signal that is used for controlling the door plant switching to drive assembly.
2. The fire-retardant cloth waste water processing system of claim 1, characterized in that: the drive assembly comprises a hydraulic telescopic rod and a sliding assembly, the sliding assembly is used for driving the hydraulic telescopic rod to recover and avoid when the door panel is opened, the sliding assembly comprises a sliding groove arranged on the inner side wall of the closed heating cavity, a sliding block matched with the sliding groove is arranged in the sliding groove, and a cylinder used for driving the sliding block to slide in the sliding groove is arranged, the sliding block is hinged to one end of the hydraulic telescopic rod, and the other end of the hydraulic telescopic rod is connected with the bottom surface of the door panel.
3. The fire-retardant cloth waste water processing system of claim 1, characterized in that: the heating and drying assembly comprises a fin heating pipe arranged at the bottom of the closed heating chamber.
4. The fire-retardant cloth waste water processing system of claim 1, characterized in that: the collection assembly comprises a collection screen; the lifting device comprises a support frame, a connecting piece fixedly connected with the collecting screen and a power mechanism used for driving the connecting piece to lift.
5. The fire-retardant cloth waste water processing system of claim 4, characterized in that: the connecting piece adopts a chain, and the power mechanism adopts a winch.
6. The fire-retardant cloth waste water processing system of claim 3, characterized in that: and baffle plates for collecting residual moisture on the door plate are arranged on two sides of the fin heating pipe.
7. The process for treating the waste water generated in the production of the flame-retardant cloth according to any one of claims 1 to 6, which is characterized by comprising the following steps of:
(1) pretreatment: firstly, adding 20-25% of quicklime into a reaction tank in a pretreatment system, and stirring;
(2) primary precipitation treatment: injecting the pretreated wastewater obtained in the step (1) into a primary sedimentation tank of a primary sedimentation system, adding polyaluminium chloride into the primary sedimentation tank, and stirring;
(3) secondary precipitation treatment: injecting the wastewater obtained in the step (2) after the primary precipitation into a precipitation tank of a secondary precipitation system, adding polyacrylamide into the precipitation tank, and stirring to obtain an upper-layer aqueous solution and flocculates precipitated below the precipitation tank;
(4) collecting the upper aqueous solution and the flocculate obtained in step (3).
8. The process for treating wastewater generated in production of flame retardant fabrics as claimed in claim 7, which is characterized in that: before the secondary precipitation treatment, the wastewater pretreated in the step (1) is subjected to circulating primary precipitation treatment.
9. The process for treating wastewater generated in production of flame retardant fabrics as claimed in claim 7, which is characterized in that: in the step (1), the stirring time is 20-30min, the pretreatment time is 48-72h, the mass concentration percentage of polyacrylamide is 0.1%, and the proportion of the addition amount to the wastewater is 20-30%.
10. The process for treating wastewater generated in production of flame retardant fabrics as claimed in claim 7, which is characterized in that: in the step (2), the mass concentration percentage of the polyaluminium chloride is 5%, and the proportion of the addition amount to the wastewater is 90-95%.
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| CN202210068824.7A CN114212868A (en) | 2022-01-21 | 2022-01-21 | Fire-retardant cloth production wastewater treatment system and treatment process |
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| CN202210068824.7A CN114212868A (en) | 2022-01-21 | 2022-01-21 | Fire-retardant cloth production wastewater treatment system and treatment process |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153219A (en) * | 2011-04-28 | 2011-08-17 | 洛阳市冠奇工贸有限责任公司 | Treatment method for waste water after purification of graphite |
| CN102795747A (en) * | 2012-08-29 | 2012-11-28 | 重庆钢铁(集团)有限责任公司 | Waste water treatment process |
| CN110204113A (en) * | 2019-06-13 | 2019-09-06 | 河南安立信环保科技有限公司 | Acid solution wastewater treatment regeneration technology |
| CN112093987A (en) * | 2020-09-17 | 2020-12-18 | 山东工业职业学院 | Closed sewage treatment plant |
| CN212269852U (en) * | 2020-04-26 | 2021-01-01 | 深圳源和建设工程有限公司 | Sewage settling zone drying device |
| CN213171615U (en) * | 2020-07-30 | 2021-05-11 | 绍兴克利尔环保设备科技有限公司 | Integrated fumaric acid wastewater treatment device |
| CN216863724U (en) * | 2022-01-21 | 2022-07-01 | 青岛博时阻燃织物有限公司 | A waste water waste recycling system for fire-retardant cloth production |
-
2022
- 2022-01-21 CN CN202210068824.7A patent/CN114212868A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153219A (en) * | 2011-04-28 | 2011-08-17 | 洛阳市冠奇工贸有限责任公司 | Treatment method for waste water after purification of graphite |
| CN102795747A (en) * | 2012-08-29 | 2012-11-28 | 重庆钢铁(集团)有限责任公司 | Waste water treatment process |
| CN110204113A (en) * | 2019-06-13 | 2019-09-06 | 河南安立信环保科技有限公司 | Acid solution wastewater treatment regeneration technology |
| CN212269852U (en) * | 2020-04-26 | 2021-01-01 | 深圳源和建设工程有限公司 | Sewage settling zone drying device |
| CN213171615U (en) * | 2020-07-30 | 2021-05-11 | 绍兴克利尔环保设备科技有限公司 | Integrated fumaric acid wastewater treatment device |
| CN112093987A (en) * | 2020-09-17 | 2020-12-18 | 山东工业职业学院 | Closed sewage treatment plant |
| CN216863724U (en) * | 2022-01-21 | 2022-07-01 | 青岛博时阻燃织物有限公司 | A waste water waste recycling system for fire-retardant cloth production |
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