CN115321709B - Dyeing and finishing sewage circulation treatment system and multistage pond - Google Patents
Dyeing and finishing sewage circulation treatment system and multistage pond Download PDFInfo
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- CN115321709B CN115321709B CN202210977579.1A CN202210977579A CN115321709B CN 115321709 B CN115321709 B CN 115321709B CN 202210977579 A CN202210977579 A CN 202210977579A CN 115321709 B CN115321709 B CN 115321709B
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- 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
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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Abstract
The invention belongs to the technical field of dyeing and finishing sewage treatment, and discloses a dyeing and finishing sewage circulation treatment system and a multistage water tank. According to the invention, through the design of the solid impurity separation unit, the ink separation unit, the adsorption sedimentation unit, the cleaning unit and the circulation unit, dyeing and finishing sewage is sequentially treated in a grading manner among the units, the purposes of degreasing, fading, purifying and the like of the sewage can be realized, greasy dirt and solid impurities can be recovered, and waste recycling is realized while the environment is ensured not to be polluted.
Description
Technical Field
The invention belongs to the technical field of dyeing and finishing sewage treatment, and particularly relates to a dyeing and finishing sewage recycling treatment system and a multistage water tank.
Background
The dyeing and finishing process, namely, the dyeing and finishing technology is used for reproducing various colors and patterns on the white blank, so that the fabric is more rich in aesthetic feeling and artistic smell, the process mainly comprises four processing procedures of raw silk and refining, dyeing, printing and finishing of the fabric, in the series of processing procedures, a large amount of sewage is discharged, and the sewage mainly contains fiber pollutants, coated grease, salts and a large amount of pollutants such as various sizing agents, auxiliary agents, dyes, surfactants and the like added in the processing procedure in a summarized way, and most of the chemical substances are difficult to degrade directly, so that the sewage quality becomes complex and difficult to degrade;
chinese invention patent: the application number CN201410219597.9 and the publication number CN104355423B disclose a treatment system for printing and dyeing sewage and sewage, comprising a sewage discharge pipeline, a spiral separator, a filter screen device, a garbage treatment device, a first separation tank, a second separation tank and an oil-water separator, wherein oil-water is thoroughly separated through secondary separation of the second separation tank and tertiary separation of the oil-water separator, the separation effect is good, a large amount of water sources are saved, the spiral separator and the garbage treatment device are arranged to separate and treat solid-phase garbage, a circular rotatable filter screen is arranged, the filter screen is in rotary multi-point contact with sewage, the filtering effect is good, the service life of the filter screen is long, and a gravity sensor is arranged to realize sewage discharge and simultaneous start of the spiral separator, so that automatic separation is realized, time and labor are saved, and the effect is good;
in the practical use process of the dyeing sewage and sewage treatment system, the oil-water separation needs a multistage separation tank, the process is complex, and meanwhile, pollutants such as slurry, auxiliary agents, dyes, surfactants and the like in sewage cannot be removed, so that water cannot be recycled, and the energy conservation and emission reduction concept is not met.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a dyeing and finishing sewage recycling treatment system and a multistage water tank, which can solve the problems that the existing treatment system has a complex oil-water separation process, is difficult to remove pollutants dissolved in water and can not recycle water.
The dyeing and finishing sewage recycling treatment system and the multistage pond are characterized by comprising a solid impurity separation unit, an ink separation unit, a chromaticity treatment unit, an adsorption sedimentation unit, a cleaning unit and a recycling unit;
the solid impurity separation unit output end is connected with the ink separation unit input end, the ink separation unit output end is connected with the chromaticity processing unit input end, the chromaticity processing unit output end is connected with the adsorption sedimentation unit input end, the adsorption sedimentation unit output end is connected with the filter unit input end, the filter unit output end is connected with the pH value adjusting unit input end, the pH value adjusting unit output end is connected with the disinfection unit input end, and the disinfection unit output end is connected with the water storage unit input end;
the output end of the disinfection unit is connected with the input end of the circulation unit, the output end of the circulation unit is connected with the input end of the solid impurity separation unit, the output end of the solid impurity separation unit is connected with the input end of the cleaning unit, and the output end of the cleaning unit is connected with the input end of the adsorption sedimentation unit;
the output end of the adsorption sedimentation unit is connected with the input end of the concentration dehydration unit;
the primary water tank and the internal structure form a solid impurity separation unit, the secondary water tank and the internal structure form an ink separation unit, the quaternary water tank and the internal structure form a chromaticity treatment unit, the tertiary water tank and the internal structure form an adsorption sedimentation unit, the nanofiltration membrane form a filtration unit, the five-stage water tank and the internal structure form a pH value adjustment unit, the sixth water tank and the internal structure form a disinfection unit, the purified water reservoir and the internal structure form a water storage unit, the drying filter press form a concentration dehydration unit, the secondary water tank and the internal structure form a chromaticity treatment unit, and the circulation connecting pipe and the high-pressure flushing pump form a circulation unit and a cleaning unit;
a solid particle discharge port is formed in the first-stage water tank, a first throwing port is formed in the third-stage water tank, a second throwing port is formed in the fourth-stage water tank, a third throwing port is formed in the fifth-stage water tank, and a fourth throwing port is formed in the sixth-stage water tank;
a sewage inlet is fixedly arranged on the primary water tank, the primary water tank is fixedly connected with the secondary water tank through a primary connecting pipe, the secondary water tank is fixedly connected with the quaternary water tank through a secondary connecting pipe, the quaternary water tank is fixedly connected with the tertiary water tank through a tertiary connecting pipe, the three-level water tank is fixedly connected with the five-level water tank through a four-level connecting pipe, the five-level water tank is fixedly connected with the six-level water tank through a five-level connecting pipe, and the six-level water tank is fixedly connected with the purified water reservoir through a circulating connecting pipe;
one end of the circulating connecting pipe is fixedly connected with the water purifying reservoir, and the other end of the circulating connecting pipe penetrates through the primary water tank and is fixedly connected with the tertiary water tank;
the part of the circulating connecting pipe, which is positioned in the primary water tank, is rotationally provided with a rotating shaft, one end of the rotating shaft penetrates through the circulating connecting pipe, the part of the rotating shaft, which is positioned in the primary water tank, is fixedly provided with a spiral blade, the part of the rotating shaft, which is positioned outside the circulating connecting pipe, is fixedly provided with a fixed rotating plate, a filter screen is fixedly arranged in the fixed rotating plate, a guide rod is fixedly arranged at a solid particle outlet, and the guide rod is in close contact with the filter screen;
the first water pump is arranged on the first-stage connecting pipe, the second water pump is arranged on the second-stage connecting pipe, the third water pump is arranged on the third-stage connecting pipe, the fourth water pump is arranged on the fifth-stage connecting pipe, the fifth water pump is arranged at one end of the circulating connecting pipe, which is close to the water purifying reservoir, and the high-pressure flushing pump is arranged at one end of the circulating connecting pipe, which is close to the third-stage water reservoir;
the nanofiltration membrane is arranged on the fourth-level connecting pipe.
Preferably, an oil-water separation film is arranged in the secondary water tank in a sliding manner, an oil stain connecting pipe is fixedly arranged in the secondary water tank, the oil stain connecting pipe and the secondary connecting pipe are respectively positioned at two sides of the oil-water separation film, and the oil stain connecting pipe is close to the oil-water separation film;
the surface of the oil-water separation film is coated with graphene.
Preferably, the three-stage water tank is fixedly connected with the drying filter press through a sewage discharge connecting pipe, and a sewage discharge pump is arranged on the sewage discharge connecting pipe.
Preferably, the port of the fourth-stage connecting pipe is spaced from the bottom of the third-stage pond by a distance greater than the distance of the port of the sewage connecting pipe from the bottom of the third-stage pond.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the dyeing and finishing sewage recycling treatment system and the multistage water tank, through the design of the solid impurity separation unit, the ink separation unit, the chromaticity treatment unit, the adsorption sedimentation unit, the cleaning unit and the recycling unit, dyeing and finishing sewage is sequentially treated in a grading manner among the units, the purposes of oil removal, color fading, purification and the like of sewage can be achieved, oil stains and solid impurities can be recovered, and waste recycling is achieved while environment is not polluted.
2. According to the dyeing and finishing sewage circulating treatment system and the multistage pond, through the design of the first-stage pond, the second-stage pond, the third-stage pond, the fourth-stage pond and the fifth-stage pond, various indexes of sewage are treated by the multistage pond, and when the indexes are unqualified, the corresponding pond can be rapidly positioned and timely maintained.
3. According to the dyeing and finishing sewage circulation treatment system and the multistage water tank, through the design of the first-stage water tank, the circulation connecting pipe, the high-pressure flushing pump and the filter screen, the filter screen in the first-stage water tank can be driven to rotate through the treated purified water, so that the screening of solid particles can be realized, meanwhile, the purified water can flush sediment in the third-stage water tank through the high-pressure flushing pump, and the sediment in the third-stage water tank is ensured not to be accumulated for a long time and flow into the fourth-stage connecting pipe, so that the nanofiltration membrane is blocked.
Drawings
FIG. 1 is a block diagram of a system architecture of the present invention;
FIG. 2 is a schematic view showing an internal structure of a multistage water tank according to the present invention;
FIG. 3 is an enlarged schematic view of a portion of FIG. 2 according to the present invention;
FIG. 4 is a cross-sectional view of a primary pond of the present invention;
in the figure: 1. a solid impurity separating unit 2, an ink separating unit 3, a chromaticity processing unit 4, an adsorption sedimentation unit 5, a filtering unit 6, a pH value adjusting unit 7, a sterilizing unit 8, a water storage unit 9, a concentration dehydration unit 10, a circulating unit 11, a cleaning unit 12, a sewage water inlet 13, a primary water tank 13-1, a solid particle discharge outlet 14, a secondary water tank 15, a tertiary water tank 15-1, a first delivery port 16, a quaternary water tank 16-1, a second delivery port 17, a fifth water tank 17-1, a third delivery port 18, a sixth water tank 18-1, a fourth delivery port, 19, a purified water reservoir, 20, a first-stage connecting pipe, 21, a third-stage connecting pipe, 22, a sewage discharging connecting pipe, 23, a fourth-stage connecting pipe, 25, a circulating connecting pipe, 26, an oil stain connecting pipe, 27, a fifth-stage connecting pipe, 28, a second-stage connecting pipe, 29, a third water pump, 30, a fourth water pump, 31, a sewage discharging pump, 32, a fifth water pump, 33, a high-pressure flushing pump, 34, a second water pump, 35, a first water pump, 36, an oil-water separating membrane, 37, a nanofiltration membrane, 38, a drying filter press, 39, a fixed rotating plate, 40, a guide rod, 41, a filter screen, 42, a rotating shaft, 43 and a spiral blade.
Detailed Description
Referring to fig. 1-4, a dyeing and finishing sewage recycling system and a multistage pond are shown, which are convenient and quick in oil-water separation process, can remove pollutants dissolved in water, and can recycle water. The dyeing and finishing sewage recycling treatment system is characterized by comprising a solid impurity separation unit 1, an ink separation unit 2, a chromaticity treatment unit 3, an adsorption sedimentation unit 4, a cleaning unit 11 and a recycling unit 10.
The output end of the solid impurity separating unit 1 is connected with the input end of the ink separating unit 2, the output end of the ink separating unit 2 is connected with the input end of the chromaticity processing unit 3, the output end of the chromaticity processing unit 3 is connected with the input end of the adsorption sedimentation unit 4, the output end of the adsorption sedimentation unit 4 is connected with the input end of the filtering unit 5, the output end of the filtering unit 5 is connected with the input end of the pH value adjusting unit 6, the output end of the pH value adjusting unit 6 is connected with the input end of the sterilizing unit 7, the output end of the sterilizing unit 7 is connected with the input end of the water storage unit 8, the output end of the sterilizing unit 7 is connected with the input end of the circulating unit 10, the output end of the circulating unit 10 is connected with the input end of the solid impurity separating unit 1, the output end of the solid impurity separating unit 1 is connected with the input end of the cleaning unit 11, the output end of the cleaning unit 11 is connected with the input end of the adsorption sedimentation unit 4, the output end of the adsorption sedimentation unit 4 is connected with the input end of the concentration dehydration unit 9, the primary water tank 13 and the internal structure form the solid impurity separation unit 1, the secondary water tank 14 and the internal structure form the ink separation unit 2, the quaternary water tank 16 and the internal structure form the chromaticity treatment unit 3, the tertiary water tank 15 and the internal structure form the adsorption sedimentation unit 4, the nanofiltration membrane 37 form the filtering unit 5, the five-stage water tank 17 and the internal structure form the pH value adjusting unit 6, the six-stage water tank 18 and the internal structure form the disinfection unit 7, the water purifying reservoir 19 and the internal structure form the water storage unit 8, the drying filter press 38 form the concentration dehydration unit 9, the secondary water tank 14 and the internal structure form the chromaticity treatment unit 3, the circulating connection pipe 25 and the high-pressure flushing pump 33 form the circulating unit 10 and the cleaning unit 11, the first-stage water tank 13 is internally provided with a solid particle discharge port 13-1, the third-stage water tank 15 is internally provided with a first delivery port 15-1, the fourth-stage water tank 16 is internally provided with a second delivery port 16-1, the fifth-stage water tank 17 is internally provided with a third delivery port 17-1, the sixth-stage water tank 18 is internally provided with a fourth delivery port 18-1, the first-stage water tank 13 is fixedly provided with a sewage inlet 12, the first-stage water tank 13 and the second-stage water tank 14 are fixedly connected through a first-stage connecting pipe 20, the second-stage water tank 14 and the fourth-stage water tank 16 are fixedly connected through a second-stage connecting pipe 28, the fourth-stage water tank 16 and the third-stage water tank 15 are fixedly connected through a third-stage connecting pipe 21, the third-stage water tank 15 and the fifth-stage water tank 17 are fixedly connected through a fourth-stage connecting pipe 23, the fifth-stage water tank 17 and the sixth-stage water tank 18 are fixedly connected through a fifth-stage connecting pipe 27, the six-stage water tank 18 is fixedly connected with the water purification water reservoir 19 through a circulating connecting pipe 25, one end of the circulating connecting pipe 25 is fixedly connected with the water purification water reservoir 19, the other end of the circulating connecting pipe 25 penetrates through the first-stage water tank 13 and is fixedly connected with the third-stage water tank 15, a rotating shaft 42 is rotatably arranged at the part of the circulating connecting pipe 25 positioned in the first-stage water tank 13, one end of the rotating shaft 42 penetrates through the circulating connecting pipe 25 and is positioned in the first-stage water tank 13, a spiral blade 43 is fixedly arranged at the part of the rotating shaft 42 positioned in the circulating connecting pipe 25, a fixed rotating plate 39 is fixedly arranged at the part of the rotating shaft 42 positioned at the outer side of the circulating connecting pipe 25, a filter screen 41 is fixedly arranged in the fixed rotating plate 39, a guide rod 40 is fixedly arranged at the solid particle outlet 13-1, the guide rod 40 is tightly contacted with the filter screen 41, a first water pump 35 is arranged on the first-stage connecting pipe 20, a second water pump 34 is arranged on the second-stage connecting pipe 28, the third water suction pump 29 is arranged on the third-stage connecting pipe 21, the fourth water suction pump 30 is arranged on the fifth-stage connecting pipe 27, the fifth water suction pump 32 is arranged at one end of the circulating connecting pipe 25, which is close to the water purification reservoir 19, the high-pressure flushing pump 33 is arranged at one end of the circulating connecting pipe 25, which is close to the third-stage water tank 15, the nanofiltration membrane 37 is arranged on the fourth-stage connecting pipe 23, dyeing and finishing sewage is treated sequentially in a grading manner through each unit, the purposes of oil removal, fading, purification and the like of the sewage can be realized, greasy dirt and solid impurities can be recovered, and waste recycling is realized while the environment is ensured not to be polluted.
The oil-water separation film 36 is arranged in the secondary pond 14 in a sliding mode, the oil-dirt connecting pipes 26 are fixedly arranged in the secondary pond 14, the oil-dirt connecting pipes 26 and the secondary connecting pipes 28 are respectively located on two sides of the oil-water separation film 36, the oil-dirt connecting pipes 26 are close to the oil-water separation film 36, graphene is coated on the surface of the oil-water separation film 36, the filter screen 41 in the primary pond 13 can be driven to rotate through the purified water after treatment, so that screening of solid particles is achieved, meanwhile, the purified water can also be used for flushing sediments in the tertiary pond 15 through the high-pressure flushing pump 33, the fact that sediments in the tertiary pond 15 cannot be accumulated for a long time and flow into the quaternary connecting pipes 23 is guaranteed, and the nanofiltration membrane 37 is blocked.
The three-stage water tank 15 is fixedly connected with the drying filter press 38 through a sewage connection pipe 22, and a sewage pump 31 is arranged on the sewage connection pipe 22.
The distance from the port of the four-stage connecting pipe 23 to the bottom of the three-stage water tank 15 is greater than the distance from the port of the sewage connecting pipe 22 to the bottom of the three-stage water tank 15.
In the initial state, the oil stain connecting pipe 26 is in a closed state;
when the treatment system and the multistage water tank are used, sewage generated by the integral dyeing enters the first-stage water tank 13 of the solid impurity separation unit 1 through the sewage water inlet 12, the sewage primarily filters solid particles through the filter screen 41, the solid particles are left on the filter screen 41, the first water suction pump 35 is started, the first water suction pump 35 pumps the sewage treated in the first-stage water tank 13 into the second-stage water tank 14 of the ink separation unit 2, when the sewage passes through the oil-water separation membrane 36, the oil body part is blocked by the oil-water separation membrane 36 and cannot pass through the oil-water separation membrane 36, the water body part in the sewage can pass through the oil-water separation membrane 36 and be pumped into the fourth-stage water tank 16 of the chromaticity treatment unit 3 through the second water suction pump 34, a user can throw a decoloring agent through the second throwing port 16-1, and the water body is decolored in the fourth-stage water tank 16, after the decolorization is finished, the water in the tertiary water tank 15 is pumped into the adsorption sedimentation unit 4 through the third water suction pump 29, the active agent and coagulant aid are added through the first adding port 15-1 by a user, the water in the tertiary water tank 15 is coagulated, reduced and precipitated, the coagulated matter is settled at the bottom of the secondary water tank 14 and cannot be discharged through the fourth connecting pipe 23, the water is discharged through the fourth connecting pipe 23, filtered through the nanofiltration membrane 37 of the filtering unit 5, enters the fifth water tank 17 of the pH value adjusting unit 6, the pH of the sewage is adjusted to 7.0-7.5 by adding an appropriate acid-base additive through the third adding port 17-1 by the user, the sewage is pumped into the sixth water tank 18 of the disinfection unit 7 through the fourth water suction pump 30, the disinfectant is added through the fourth adding port 18-1 for disinfection treatment, and finally the water after most purification is pumped into the clean water reservoir 19 of the water storage unit 8 through the fifth water suction pump 32 for storage, and a part of water body flows into the three-stage water tank 15 again through the high-pressure flushing pump 33 of the circulating unit 10 and the cleaning unit 11, the water body drives the spiral blade 43 to rotate in the process of passing through the circulating connecting pipe 25, the spiral blade 43 drives the rotating shaft 42 to rotate, the rotating shaft 42 drives the fixed rotating plate 39 to rotate, the fixed rotating plate 39 drives the filter screen 41 to rotate, the filter screen 41 rotates the side without solid particles accumulated to the sewage water inlet 12, the filtering treatment is continued, and along with the rotating process, the solid particles are guided to move to the solid particle outlet 13-1 through the guide rod 40 to be discharged and collected;
the water enters the tertiary water tank 15 through the high-pressure flushing pump 33, then the coagulum accumulated at the bottom of the tertiary water tank 15 is flushed, and the coagulum is pumped into the drying filter press 38 through the sewage pump 31 for drying and filter pressing and recycling;
the oil pollution connecting pipe 26 can be opened periodically, and the oil in the secondary water tank 14 is discharged periodically through an external pump.
Claims (4)
1. The dyeing and finishing sewage recycling treatment system is characterized by comprising a solid impurity separation unit (1), an ink separation unit (2), a chromaticity treatment unit (3), an adsorption sedimentation unit (4), a cleaning unit (11) and a recycling unit (10);
the solid impurity separating unit (1) output end is connected with the ink separating unit (2) input end, the ink separating unit (2) output end is connected with the chromaticity processing unit (3) input end, the chromaticity processing unit (3) output end is connected with the adsorption sedimentation unit (4) input end, the adsorption sedimentation unit (4) output end is connected with the filter unit (5) input end, the filter unit (5) output end is connected with the pH value adjusting unit (6) input end, the pH value adjusting unit (6) output end is connected with the sterilizing unit (7) input end, and the sterilizing unit (7) output end is connected with the water storage unit (8) input end;
the output end of the disinfection unit (7) is connected with the input end of the circulation unit (10), the output end of the circulation unit (10) is connected with the input end of the solid impurity separation unit (1), the output end of the solid impurity separation unit (1) is connected with the input end of the cleaning unit (11), and the output end of the cleaning unit (11) is connected with the input end of the adsorption sedimentation unit (4);
the output end of the adsorption sedimentation unit (4) is connected with the input end of the concentration dehydration unit (9);
a first-stage water tank (13) and an internal structure form a solid impurity separation unit (1), a second-stage water tank (14) and an internal structure form an ink separation unit (2), a fourth-stage water tank (16) and an internal structure form a chromaticity treatment unit (3), a third-stage water tank (15) and an internal structure form an adsorption sedimentation unit (4), a nanofiltration membrane (37) form a filtering unit (5), a fifth-stage water tank (17) and an internal structure form a pH value regulating unit (6), a sixth-stage water tank (18) and an internal structure form a disinfection unit (7), a water purifying reservoir (19) and an internal structure form a water storage unit (8), a drying filter press (38) form a concentration dehydration unit (9), a second-stage water tank (14) and an internal structure form a chromaticity treatment unit (3), a circulating connecting pipe (25) and a high-pressure flushing pump (33) form a circulating unit (10) and a cleaning unit (11);
a solid particle discharge port (13-1) is formed in the first-stage water tank (13), a first throwing port (15-1) is formed in the third-stage water tank (15), a second throwing port (16-1) is formed in the fourth-stage water tank (16), a third throwing port (17-1) is formed in the fifth-stage water tank (17), and a fourth throwing port (18-1) is formed in the sixth-stage water tank (18);
a sewage inlet (12) is fixedly arranged on the primary water tank (13), the primary water tank (13) is fixedly connected with the secondary water tank (14) through a primary connecting pipe (20), the secondary water tank (14) is fixedly connected with the quaternary water tank (16) through a secondary connecting pipe (28), the quaternary water tank (16) is fixedly connected with the tertiary water tank (15) through a tertiary connecting pipe (21), the tertiary water tank (15) is fixedly connected with the five-stage water tank (17) through a quaternary connecting pipe (23), the five-stage water tank (17) is fixedly connected with the six-stage water tank (18) through a five-stage connecting pipe (27), and the six-stage water tank (18) is fixedly connected with the purified water reservoir (19) through a circulating connecting pipe (25);
one end of the circulating connecting pipe (25) is fixedly connected with the water purifying reservoir (19), and the other end of the circulating connecting pipe (25) penetrates through the primary water tank (13) and is fixedly connected with the tertiary water tank (15);
a rotating shaft (42) is rotatably arranged at the part of the circulating connecting pipe (25) positioned in the primary water tank (13), one end of the rotating shaft (42) penetrates through the circulating connecting pipe (25) and is positioned in the primary water tank (13), a spiral blade (43) is fixedly arranged at the part of the rotating shaft (42) positioned in the circulating connecting pipe (25), a fixed rotating plate (39) is fixedly arranged at the part of the rotating shaft (42) positioned at the outer side of the circulating connecting pipe (25), a filter screen (41) is fixedly arranged in the fixed rotating plate (39), a guide rod (40) is fixedly arranged at the solid particle outlet (13-1), and the guide rod (40) is tightly contacted with the filter screen (41);
a first water suction pump (35) is arranged on the first-stage connecting pipe (20), a second water suction pump (34) is arranged on the second-stage connecting pipe (28), a third water suction pump (29) is arranged on the third-stage connecting pipe (21), a fourth water suction pump (30) is arranged on the fifth-stage connecting pipe (27), a fifth water suction pump (32) is arranged at one end, close to the water purifying reservoir (19), of the circulating connecting pipe (25), and a high-pressure flushing pump (33) is arranged at one end, close to the third-stage water reservoir (15), of the circulating connecting pipe (25);
a nanofiltration membrane (37) is arranged on the fourth-level connecting pipe (23).
2. A system for recycling dyeing and finishing wastewater according to claim 1, wherein: an oil-water separation film (36) is arranged in the secondary water tank (14) in a sliding manner, an oil stain connecting pipe (26) is fixedly arranged in the secondary water tank (14), the oil stain connecting pipe (26) and the secondary connecting pipe (28) are respectively positioned at two sides of the oil-water separation film (36), and the oil stain connecting pipe (26) is close to the oil-water separation film (36);
the surface of the oil-water separation film (36) is coated with graphene.
3. A system for recycling dyeing and finishing wastewater according to claim 1, wherein: the three-stage water tank (15) is fixedly connected with the drying filter press (38) through a sewage discharge connecting pipe (22), and a sewage discharge pump (31) is arranged on the sewage discharge connecting pipe (22).
4. A system for recycling dyeing and finishing wastewater according to claim 1, wherein: the distance between the port of the four-stage connecting pipe (23) and the bottom of the three-stage water tank (15) is greater than the distance between the port of the sewage discharging connecting pipe (22) and the bottom of the three-stage water tank (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210977579.1A CN115321709B (en) | 2022-08-15 | 2022-08-15 | Dyeing and finishing sewage circulation treatment system and multistage pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| JP2003200181A (en) * | 2001-12-28 | 2003-07-15 | Daiden:Kk | Method for cleaning sewage, device for cleaning sewage used therefor and mixed foreign matter separator for cleaning tank |
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| WO2013163963A1 (en) * | 2012-05-03 | 2013-11-07 | 波鹰(厦门)科技有限公司 | Device for sewage treatment and regenerative recycling and method thereof |
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| CN115321709A (en) | 2022-11-11 |
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