CN210367323U - High concentration industry organic waste water zero release processing system - Google Patents
High concentration industry organic waste water zero release processing system Download PDFInfo
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- CN210367323U CN210367323U CN201921320375.0U CN201921320375U CN210367323U CN 210367323 U CN210367323 U CN 210367323U CN 201921320375 U CN201921320375 U CN 201921320375U CN 210367323 U CN210367323 U CN 210367323U
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Abstract
The utility model relates to a high-concentration industrial organic wastewater zero-discharge treatment system, which comprises a pretreatment system, a magnetic catalytic oxidation system, an ultrafiltration membrane system, a nanofiltration membrane system, a softening membrane system, a two-stage high-pressure reverse osmosis membrane system, an evaporation concentration system and a sludge treatment system; the input end of the pretreatment system is provided with a raw water pump, the input end of the raw water pump is connected with a raw water tank, one end of the output end of the pretreatment system is connected with the sludge treatment system, the other end of the output end of the pretreatment system is connected with the magnetic catalytic oxidation system, and an acid dosing port and a hydrogen peroxide dosing port are sequentially arranged on a pipeline between the other end of the output end of the pretreatment system and the input end of the magnetic catalytic oxidation system; the output end of the magnetic catalytic oxidation system is connected with an ultrafiltration membrane system, an ultrafiltration water production tank, a booster pump, a filter and a high-pressure pump are sequentially arranged at the water production end of the ultrafiltration membrane system, and the concentrated water end of the ultrafiltration membrane system is connected to the original water tank; the output end of the high-pressure pump is connected with the nanofiltration membrane system.
Description
Technical Field
The utility model belongs to the technical field of high concentration industry organic waste water treatment, specifically relate to a high concentration industry organic waste water zero release processing system.
Background
The high-concentration organic wastewater mainly has the following characteristics: firstly, the concentration of organic matters is high, the Chemical Oxygen Demand (COD) is generally more than 5000mg/L, and some COD is even as high as tens of thousands to hundreds of thousands of milligrams per liter, relatively speaking, the Biochemical Oxygen Demand (BOD) is lower, and the biodegradability is poor; secondly, the pollutant components in the wastewater are complex, organic matters in the wastewater containing toxic substances are abundant in aromatic compounds and heterocyclic compounds, and sulfides, nitrides, heavy metals and toxic organic matters are also contained; thirdly, the color is high, peculiar smell exists, and a certain amount of waste water emits pungent odor to cause adverse effect on the surrounding environment; fourthly, the catalyst has strong acidity and basicity.
Due to the characteristics of the high-concentration organic wastewater, the existing high-concentration industrial organic wastewater treatment is difficult to achieve basic zero discharge, and the adopted system is complicated in structure, complex in flow and high in difficulty.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high concentration industry organic waste water zero release processing system, system simple structure is practical and high-efficient.
For solving the technical problem, the utility model provides a technical scheme of system does: a high-concentration industrial organic wastewater zero-emission treatment system comprises a pretreatment system, a magnetic catalytic oxidation system, an ultrafiltration membrane system, a nanofiltration membrane system, a softening membrane system, a two-stage high-pressure reverse osmosis membrane system, an evaporation concentration system and a sludge treatment system;
the input end of the pretreatment system is provided with a raw water pump, the input end of the raw water pump is connected with a raw water tank, one end of the output end of the pretreatment system is connected with the sludge treatment system, the other end of the output end of the pretreatment system is connected with the magnetic catalytic oxidation system, and an acid dosing port and a hydrogen peroxide dosing port are sequentially arranged on a pipeline between the other end of the output end of the pretreatment system and the input end of the magnetic catalytic oxidation system; the output end of the magnetic catalytic oxidation system is connected with an ultrafiltration membrane system, an ultrafiltration water production tank, a booster pump, a filter and a high-pressure pump are sequentially arranged at the water production end of the ultrafiltration membrane system, and the concentrated water end of the ultrafiltration membrane system is connected to the original water tank; the output end of the high-pressure pump is connected with the nanofiltration membrane system; a water producing end of the nanofiltration membrane system is provided with a nanofiltration water producing tank, and a concentrated water end of the nanofiltration membrane system is provided with a nanofiltration concentrated water tank; the output end of the nanofiltration water production tank is provided with a secondary high-pressure pump, and the output end of the secondary high-pressure pump is provided with a two-stage high-pressure reverse osmosis membrane system;
the output end of the nanofiltration concentrated water tank is provided with a water inlet pump, and the output end of the water inlet pump is provided with a softening membrane system; one end of the output end of the softening membrane system is a water production end, the water production end of the softening membrane system is provided with a softening water production tank, and the other end of the output end of the softening membrane system is connected with the sludge treatment system; the output end of the softening water production tank is connected with an evaporation concentration system; one end of the output end of the evaporation concentration system is connected with the sludge treatment system, and the other end of the output end of the evaporation concentration system is provided with an evaporation condensed water pipeline connected to the ultrafiltration water production tank;
the two-stage high-pressure reverse osmosis membrane system comprises a first-stage reverse osmosis membrane system and a second-stage reverse osmosis membrane system which are sequentially arranged, a first-stage reverse osmosis concentrated water tank is arranged between the first-stage reverse osmosis membrane system and the second-stage reverse osmosis membrane system, the water production ends of the first-stage reverse osmosis membrane system and the second-stage reverse osmosis membrane system are both connected with a reverse osmosis water production tank, the concentrated water end of the first-stage reverse osmosis membrane system is connected to the input end of the second-stage reverse osmosis membrane system, and.
Furthermore, the sludge treatment system comprises a sludge pump and a sludge dewatering device which are sequentially arranged.
Furthermore, the catalyst in the magnetic catalytic oxidation system is a high-efficiency catalyst for treating high-concentration organic wastewater, and the high-efficiency catalyst in the magnetic catalytic oxidation system is granular and loaded in the catalytic oxidation column in the form of filler.
Furthermore, the pretreatment system is one or a combination of a plurality of inclined plate coagulation sedimentation devices, magnetic coagulation sedimentation devices, multi-medium filters and air flotation devices; the ultrafiltration membrane in the ultrafiltration membrane system is one of a tubular membrane, a hollow fiber membrane and a flat membrane; the nanofiltration membrane in the nanofiltration membrane system is one of a common roll-type nanofiltration membrane and a roll-type high-pressure nanofiltration membrane; the first-stage reverse osmosis membrane in the two-stage high-pressure reverse osmosis membrane system is one of a common roll type reverse osmosis membrane, a high-pressure roll type reverse osmosis membrane (STRO) and a disc tube type reverse osmosis membrane (DTRO), and the second-stage reverse osmosis membrane is a roll type reverse osmosis membrane or one of a common roll type reverse osmosis membrane, a high-pressure roll type reverse osmosis membrane (STRO) and a disc tube type reverse osmosis membrane (DTRO); the softening membrane of the softening membrane system is one of an inorganic tubular softening membrane and an organic tubular softening membrane, and the filtering precision of the softening membrane is 30-50 nm; the evaporation concentration system is one or two combination of an MVR evaporator and membrane distillation.
Still further, the sludge dewatering device is one of a plate-and-frame filter press, a belt filter press, a spiral sludge dewatering machine and a centrifugal machine.
The technical effects of the utility model: the system has simple, practical and high-efficiency structure; the treatment process is simple, the efficiency is high, and the effect is good.
Drawings
FIG. 1 is a schematic structural diagram of a high concentration industrial organic wastewater zero discharge treatment system of the present invention;
FIG. 2 is an enlarged view of the upper half of the structure of FIG. 1;
fig. 3 is an enlarged view of the lower half structure of fig. 1.
Detailed Description
The following further describes the present invention with reference to specific embodiments. The specific embodiments described herein are merely illustrative of the present invention and do not limit the scope of the invention.
Referring to the drawings, the utility model discloses a high concentration industry organic waste water zero release processing system, this system mainly include pretreatment systems 10, sludge treatment system 60, magnetism catalytic oxidation system 20, milipore filter system 80, receive filter membrane system 30, two-stage high pressure reverse osmosis membrane system 70, evaporation concentration system 50. Wherein the input end of the pretreatment system 10 is connected with the raw water pump 11, and the sludge generated by pretreatment directly enters the sludge treatment system 60; sludge generated by the sludge treatment system 60 is treated by outward transportation after being dehydrated; the input end of the magnetic catalytic oxidation system 20 is connected with the outlet of the pretreatment system 10, acid dosing and hydrogen peroxide dosing are carried out before wastewater enters the magnetic catalytic oxidation system 20, and an independently developed high-efficiency catalyst for treating high-concentration organic wastewater is adopted in the magnetic catalytic oxidation system 20; the water produced by the magnetic catalytic oxidation system 20 is connected with an ultrafiltration membrane system 80; the ultrafiltration membrane system 80 is connected with the nanofiltration membrane system 30, the concentrated solution (namely, concentrated water) of the nanofiltration membrane system 30 enters the softening membrane system 40, and the permeate (namely, produced water) enters the two-stage high-pressure reverse osmosis membrane system 70; concentrated solution (namely concentrated water) of the two-stage high-pressure reverse osmosis membrane system 70 enters the softening membrane system 40, and permeate (namely produced water) is collected into a water producing pool (firstly passes through a reverse osmosis water producing tank 73) for production and recycling; the softening membrane system 40 is connected with the evaporation concentration system 50, and the solid waste generated by the evaporation concentration system 50 is transported out by the sludge treatment system 60. The utility model discloses the system can handle various high concentration, high salinity, difficult degradation organic waste water through adopting multiple processing technology such as preliminary treatment, high-efficient catalyst, membrane separation technique to combine, with high concentration organic waste water advanced treatment back retrieval and utilization up to standard, realize the zero release.
Specifically, the method comprises the following steps:
the utility model discloses a high concentration industry organic waste water zero release processing system mainly includes pretreatment systems 10, sludge treatment system 60, magnetism catalytic oxidation system 20, milipore filter system 80, receives filter membrane system 30, two-stage high pressure reverse osmosis membrane system 70, evaporative concentration system 50.
The pretreatment system 10 is one or a combination of a plurality of inclined plate coagulation sedimentation devices, magnetic coagulation sedimentation devices, multi-medium filters and air flotation devices.
The sludge treatment system 60 includes a sludge pump and a sludge dewatering device 61.
The sludge dewatering device 61 is one of a plate-and-frame filter press, a belt filter press, a spiral sludge dewatering machine and a centrifuge.
The catalyst in the magnetic catalytic oxidation system 20 is a high-efficiency catalyst for treating high-concentration organic wastewater, which is independently developed. And the catalyst in the magnetic catalytic oxidation system 20 is granular and loaded in the catalytic oxidation column in the form of filler.
The ultrafiltration membrane in the ultrafiltration membrane system 80 may be one of a tubular membrane, a hollow fiber membrane and a flat membrane.
The nanofiltration membrane in the nanofiltration membrane system 30 can be one of a common roll-type nanofiltration membrane and a roll-type high-pressure nanofiltration membrane.
The first-stage reverse osmosis membrane 71 of the two-stage high-pressure reverse osmosis membrane system 70 may be one of a general roll type reverse osmosis membrane, a high-pressure roll type reverse osmosis membrane (STRO) and a disc tube type reverse osmosis membrane (DTRO), and the second-stage reverse osmosis membrane 72 may be one of a roll type reverse osmosis membrane, a high-pressure roll type reverse osmosis membrane (STRO) and a disc tube type reverse osmosis membrane (DTRO).
The softening membrane of the softening membrane system 40 is one of an inorganic tubular softening membrane and an organic tubular softening membrane, and the filtering precision of the softening membrane is 30-50 nm.
The evaporation concentration system 50 is one or two combination of MVR (mechanical vapor recompression) evaporator and membrane distillation.
The high-efficiency catalyst (high-efficiency catalyst or catalyst for short) for treating the high-concentration organic wastewater is as follows:
the high-efficiency catalyst for treating the high-concentration organic wastewater comprises the following raw materials in parts by mass: 40-50 parts of silicon carbide, 10-20 parts of ferroferric oxide, 10-20 parts of titanium dioxide, 5-10 parts of zirconium oxide, 1-5 parts of cerium oxide, 0.5-2.0 parts of graphene, 0.2-1 part of polystyrene nano microspheres, 5-10 parts of ferric chloride and 50-100 parts of deionized water.
The preparation method comprises the following steps:
(1) preparing raw materials: taking the following components in parts by mass: 40-50 parts of silicon carbide, 10-20 parts of ferroferric oxide, 10-20 parts of titanium dioxide, 5-10 parts of zirconium oxide, 1-5 parts of cerium oxide, 0.5-2.0 parts of graphene, 0.2-1 part of polystyrene nano microspheres, 5-10 parts of ferric chloride and 50-100 parts of deionized water, wherein 50-100 parts of deionized water are divided into 30-60 parts of first part of deionized water and 20-40 parts of second part of deionized water;
(2) preparing titanium dioxide slurry from the first part of deionized water and titanium dioxide, adjusting the pH to 3.0-3.5, and then adding FeCl3Adding the solution into slurry of titanium dioxide to form coating on the surface of the titanium dioxide, washing and filtering for later use;
(3) preparing silicon carbide, ferroferric oxide, zirconium oxide, cerium oxide, graphene, polystyrene nano-microspheres, a second part of deionized water and coated titanium dioxide into slurry according to a proportion;
(4) and dispersing the configured slurry at a high speed for 1-3h, washing, filtering, performing heat treatment at 400-600 ℃, calcining at a temperature higher than 800 ℃, and finally crushing to obtain the catalyst.
Furthermore, the particle size of the polystyrene nano-microsphere is 5 to 50 nm.
Further, in the step (4), the heat treatment is performed by raising the temperature from room temperature to 400-600 ℃ at a rate of about 5 ℃/min to about 10 ℃/min for 2-4 h.
Further, the calcination at a temperature higher than 800 ℃ in the step (4) is performed for 2-4 hours in a state of introducing argon or nitrogen.
Further, the pulverization in the step (4) is performed by a Raymond mill or a jet mill.
And (3) further, the particle size of the catalyst obtained by crushing in the step (4) is 50-1000 μm.
The utility model discloses a high concentration industry organic waste water zero release treatment process: the method comprises the following steps:
(1) firstly, high-concentration organic wastewater is collected in a raw water tank, is pumped into a pretreatment system 10 (the pretreatment system is one of an inclined plate coagulation sedimentation device, a magnetic coagulation sedimentation device, a multi-medium filter and an air floatation device) through a raw water tank 12 and a raw water pump 11 for pretreatment, sludge generated by pretreatment directly enters a sludge treatment system 60 to remove pollutants such as suspended matters and large-particle impurities, and the effluent is ensured to be clear so as to avoid polluting the following catalyst;
(2) secondly, the pretreated water enters a magnetic catalytic oxidation system 20, acid is added to adjust the pH value, an oxidant (hydrogen peroxide) is added, and under the acidic condition, the organic matters carry out oxidative degradation on indexes such as refractory organic matters, ammonia nitrogen and the like in the wastewater under the combined action of the oxidant and the catalyst to decompose the refractory organic matters into carbon dioxide and water, so that pollutants in the water are efficiently removed;
(3) the produced water after catalytic oxidation by the magnetic catalytic oxidation system 20 enters an ultrafiltration membrane system 80 for purification treatment to remove insoluble substances such as fine particles in the water, a small amount of (ultrafiltration) concentrated water returns to the original water tank 12 and enters the original water tank 12 to a raw water pool for circulation treatment, and the (ultrafiltration) produced water enters an ultrafiltration produced water tank 81;
(4) the ultrafiltration water passes through a booster pump 82, a filter 83 and a high-pressure pump 84 and then enters a nanofiltration membrane system 30, and the nanofiltration membrane of the nanofiltration membrane system 30 separates organic matters and inorganic salts in the wastewater, and the (nanofiltration) concentrated water enters a nanofiltration concentrated water tank 31, and the (nanofiltration) water enters a nanofiltration water tank 32;
(5) the (nanofiltration) produced water enters a two-stage high-pressure reverse osmosis membrane system 70 (comprising a first-stage reverse osmosis membrane 71 and a second-stage reverse osmosis membrane 72 which are sequentially arranged) through a second high-pressure pump 33, salt, soluble small-molecule organic pollutants and other impurities in the wastewater are further removed, the concentrated water of the two-stage high-pressure reverse osmosis membrane system 70 enters a nanofiltration concentrated water tank 31, the produced water enters a reverse osmosis produced water tank 73, and the produced water of the reverse osmosis produced water tank 73 can be recycled in production.
(6) The (nanofiltration) concentrated water enters a softening membrane system 40 through a water inlet pump 34 to be treated so as to remove calcium and magnesium ions in the concentrated water, and the produced water enters a softening water production tank 41.
(7) And (3) the water in the softened water tank 41 enters the evaporation concentration system 50 for evaporation concentration, solid salt and sludge are subjected to sludge dehydration and then are transported outwards, condensed water is evaporated and enters the ultrafiltration water tank 81 for treatment, and the circulation is performed by taking the step (4) as the starting point.
The above description is only a specific embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the principle of the present invention, a plurality of modifications or equivalent replacements may be performed on the technical solution of the present invention, and these should also be considered as belonging to the protection scope of the present invention.
Claims (5)
1. The utility model provides a high concentration industry organic waste water zero release processing system which characterized in that: the system comprises a pretreatment system (10), a magnetic catalytic oxidation system (20), an ultrafiltration membrane system (80), a nanofiltration membrane system (30), a softening membrane system (40), a two-stage high-pressure reverse osmosis membrane system (70), an evaporation concentration system (50) and a sludge treatment system (60);
the input end of the pretreatment system (10) is provided with a raw water pump (11), the input end of the raw water pump (11) is connected with a raw water tank (12), one end of the output end of the pretreatment system (10) is connected with a sludge treatment system (60), the other end of the output end of the pretreatment system (10) is connected with a magnetic catalytic oxidation system (20), and a pipeline between the other end of the output end of the pretreatment system (10) and the input end of the magnetic catalytic oxidation system (20) is sequentially provided with an acid dosing port and a hydrogen peroxide dosing port; the output end of the magnetic catalytic oxidation system (20) is connected with an ultrafiltration membrane system (80), the water production end of the ultrafiltration membrane system (80) is sequentially provided with an ultrafiltration water production tank (81), a booster pump (82), a filter (83) and a high-pressure pump (84), and the concentrated water end of the ultrafiltration membrane system (80) is connected to the raw water tank (12); the output end of the high-pressure pump (84) is connected with the nanofiltration membrane system (30); a water producing end of the nanofiltration membrane system (30) is provided with a nanofiltration water producing tank (32), and a concentrated water end of the nanofiltration membrane system (30) is provided with a nanofiltration concentrated water tank (31); the output end of the nanofiltration water production tank (32) is provided with a secondary high-pressure pump (33), and the output end of the secondary high-pressure pump (33) is provided with a two-stage high-pressure reverse osmosis membrane system (70);
the output end of the nanofiltration concentrated water tank (31) is provided with a water inlet pump (34), and the output end of the water inlet pump (34) is provided with a softening membrane system (40); one end of the output end of the softening membrane system (40) is a water production end, the water production end of the softening membrane system (40) is provided with a softening water production tank (41), and the other end of the output end of the softening membrane system (40) is connected with a sludge treatment system (60); the output end of the softening water production tank (41) is connected with an evaporation concentration system (50); one end of the output end of the evaporation concentration system (50) is connected with the sludge treatment system (60), and the other end of the output end of the evaporation concentration system (50) is provided with an evaporation condensed water pipeline connected to the ultrafiltration water production tank (81);
the two-stage high-pressure reverse osmosis membrane system (70) comprises a first-stage reverse osmosis membrane (71) and a second-stage reverse osmosis membrane (72) which are sequentially arranged, a first-stage reverse osmosis concentrated water tank is arranged between the first-stage reverse osmosis membrane (71) and the second-stage reverse osmosis membrane (72), the water production ends of the first-stage reverse osmosis membrane (71) and the second-stage reverse osmosis membrane (72) are connected with a reverse osmosis water production tank (73), the concentrated water end of the first-stage reverse osmosis membrane (71) is connected to the input end of the second-stage reverse osmosis membrane (72), and the concentrated water end.
2. The high-concentration industrial organic wastewater zero-discharge treatment system according to claim 1, characterized in that: the sludge treatment system (60) comprises a sludge pump and a sludge dewatering device (61) which are sequentially arranged.
3. The high-concentration industrial organic wastewater zero-discharge treatment system according to claim 1, characterized in that: the catalyst in the magnetic catalytic oxidation system (20) is a high-efficiency catalyst for treating high-concentration organic wastewater, and the high-efficiency catalyst in the magnetic catalytic oxidation system (20) is granular and loaded in a catalytic oxidation column in the form of filler.
4. The high-concentration industrial organic wastewater zero-discharge treatment system according to claim 1, characterized in that: the pretreatment system (10) is one or a combination of a plurality of inclined plate coagulation sedimentation devices, magnetic coagulation sedimentation devices, multi-medium filters and air flotation devices; the ultrafiltration membrane in the ultrafiltration membrane system (80) is one of a tubular membrane, a hollow fiber membrane and a flat membrane; the nanofiltration membrane in the nanofiltration membrane system (30) is one of a common roll-type nanofiltration membrane and a roll-type high-pressure nanofiltration membrane; the first-stage reverse osmosis membrane (71) in the two-stage high-pressure reverse osmosis membrane system (70) is one of a common roll type reverse osmosis membrane, a high-pressure roll type reverse osmosis membrane (STRO) and a disc tube type reverse osmosis membrane (DTRO), and the second-stage reverse osmosis membrane (72) is a roll type reverse osmosis membrane or one of a common roll type reverse osmosis membrane, a high-pressure roll type reverse osmosis membrane (STRO) and a disc tube type reverse osmosis membrane (DTRO); the softening membrane of the softening membrane system (40) is one of an inorganic tubular softening membrane and an organic tubular softening membrane, and the filtering precision of the softening membrane is 30-50 nm; the evaporation concentration system (50) is one or two combination of an MVR evaporator and membrane distillation.
5. The high-concentration industrial organic wastewater zero-discharge treatment system according to claim 2, characterized in that: the sludge dewatering device (61) is one of a plate-and-frame filter press, a belt filter press, a stacked-spiral sludge dewatering machine and a centrifugal machine.
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| CN110342724A (en) * | 2019-08-14 | 2019-10-18 | 安徽科博瑞环境科技有限公司 | A kind of high-concentration industrial organic waste water zero-discharge treatment system and its technique |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110342724A (en) * | 2019-08-14 | 2019-10-18 | 安徽科博瑞环境科技有限公司 | A kind of high-concentration industrial organic waste water zero-discharge treatment system and its technique |
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