CN117566889A - Epoxypropane wastewater and hydrogen peroxide wastewater combined removal system and treatment process - Google Patents
Epoxypropane wastewater and hydrogen peroxide wastewater combined removal system and treatment process Download PDFInfo
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- CN117566889A CN117566889A CN202311530400.9A CN202311530400A CN117566889A CN 117566889 A CN117566889 A CN 117566889A CN 202311530400 A CN202311530400 A CN 202311530400A CN 117566889 A CN117566889 A CN 117566889A
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- hydrogen peroxide
- propylene oxide
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- 239000002351 wastewater Substances 0.000 title claims abstract description 109
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 94
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004544 sputter deposition Methods 0.000 claims abstract description 79
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 239000003054 catalyst Substances 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000000889 atomisation Methods 0.000 claims abstract description 7
- 238000007790 scraping Methods 0.000 claims description 15
- 230000003311 flocculating effect Effects 0.000 claims description 7
- 239000010812 mixed waste Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000006555 catalytic reaction Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 239000010865 sewage Substances 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000003795 desorption Methods 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 238000005189 flocculation Methods 0.000 abstract description 8
- 230000016615 flocculation Effects 0.000 abstract description 8
- 230000003197 catalytic effect Effects 0.000 abstract description 7
- 238000001556 precipitation Methods 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 4
- 239000013049 sediment Substances 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract 1
- HWOWEGAQDKKHDR-UHFFFAOYSA-N 4-hydroxy-6-(pyridin-3-yl)-2H-pyran-2-one Chemical compound O1C(=O)C=C(O)C=C1C1=CC=CN=C1 HWOWEGAQDKKHDR-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229940102253 isopropanolamine Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Classifications
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F1/5209—Regulation methods for flocculation or precipitation
-
- 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
- C02F1/5281—Installations for water purification using chemical 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- 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
-
- 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
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
-
- 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
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
-
- 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
- C02F2209/001—Upstream control, i.e. monitoring for predictive control
-
- 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
-
- 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
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- 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
- C02F2209/44—Time
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Epoxy Compounds (AREA)
Abstract
The invention discloses a combined removal system and a treatment process for epoxypropane wastewater and hydrogen peroxide wastewater, which relate to the technical field of wastewater treatment and comprise the following steps: homogenizing pretreatment, normal-temperature atomization, low-density oil pollution generation and temperature rising flocculation precipitation. According to the invention, the liquid stirring mechanism and the fog state countercurrent mechanism are arranged on the closed treatment box, so that the rapid generation of low-density oil stains is realized in the initial stage with higher catalyst activity, the condition that the oil stains wrap flocculation sediment is prevented, and the influence on the subsequent secondary recovery treatment is avoided; through plugging the perforated jet flow curved plate, and opening the heating pipe, the temperature of the environment in the sealed closed treatment box can be raised, and the catalyst in the catalytic placement seat at the same height can be directly acted on horizontally, so that the reaction activity temperature of the catalyst is ensured, and the liquid mixed wastewater can be disturbed and stirred by matching with the sputtering fan blade I and the sputtering fan blade II which are opposite in rotation direction, so that the reaction effect of flocculation precipitation is improved.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a system and a process for combined removal of epoxypropane wastewater and hydrogen peroxide wastewater.
Background
Propylene Oxide (PO) is an important basic organic chemical raw material, PO is mainly used for producing polyether, propylene glycol and isopropanolamine, and can also be used as a main raw material of a surfactant, a demulsifier and a pesticide emulsifier, and the derivative is widely applied to industries such as automobiles, buildings, foods, tobacco, cosmetics and the like, and is an important raw material of fine chemical products.
The technology for producing propylene oxide by a hydrogen peroxide direct oxidation method (HPPO method) is a novel propylene oxide production technology, the process flow is simple, the product yield is high, meanwhile, the waste water produced by a hydrogen peroxide device matched with HPPO contains residual substances such as hydrogen peroxide, heavy aromatic hydrocarbon and the like, and the hydrogen peroxide waste water can seriously damage a microorganism system due to the fact that the high-concentration peroxide is contained, so that the waste water cannot be directly discharged into a sewage treatment plant, and the propylene oxide waste water and the hydrogen peroxide waste water produced by the HPPO process matched device can enter the existing sewage treatment plant of an enterprise only through proper pretreatment.
However, the prior art finds that certain disadvantages still exist in the long-time use process: 1. when the epoxypropane wastewater and the hydrogen peroxide wastewater are mixed in a liquid state, floating low-density oil stains and sinking flocculating sedimentation are generated simultaneously, the low-density oil stains and the flocculating sedimentation are treated respectively in a way of gradually discharging in multiple stages in the prior art, the flocculating sedimentation is coated by the oil stains easily, and the subsequent secondary recovery treatment is influenced after the impurities are mixed; 2. the catalyst has higher initial activity, the liquid mixed wastewater of propylene oxide and hydrogen peroxide can react rapidly, but the activity of the catalyst can be reduced in the later use period, and the reaction treatment time of the liquid mixed wastewater can be prolonged obviously.
Disclosure of Invention
The invention aims to provide a combined removal system and a treatment process for propylene oxide wastewater and hydrogen peroxide wastewater, so as to solve the defects caused by the prior art.
The utility model provides a propylene oxide waste water and hydrogen peroxide solution waste water joint desorption system, includes sealed treatment case, feed tank, liquid rabbling mechanism and fog state countercurrent mechanism, the feed tank has two and symmetry to install in sealed treatment case's both sides, two the feed tank splendid attire propylene oxide waste water and hydrogen peroxide solution waste water respectively, liquid rabbling mechanism installs on sealed treatment case to be used for stirring the liquid mixed waste water under the normal atmospheric temperature, fog state countercurrent mechanism also installs on sealed treatment case, and is used for under the intensification state, changes fog and drip state to former liquid mixed waste water through the sputtering mode.
Preferably, the liquid stirring mechanism comprises a driving motor, a first sputtering fan blade and a second sputtering fan blade, the driving motor is arranged at the lower end of the closed treatment box through a mounting frame, two coaxially arranged driving wheels are arranged at the output end of the driving motor, the upper end of the feeding box is vertically rotated and provided with a rotating shaft, the upper end of the rotating shaft is rotatably arranged on a top cover of the closed treatment box, the lower part of the rotating shaft is coaxially provided with a driven wheel, the driven wheel is connected with the driving wheel through a synchronous belt, and the first sputtering fan blade and the second sputtering fan blade are respectively arranged on the two rotating shafts.
Preferably, the rotation directions of the first sputtering fan blade and the second sputtering fan blade are opposite, and the surfaces of the first sputtering fan blade and the second sputtering fan blade are rough surfaces with the concave and convex surfaces alternately.
Preferably, the fog state countercurrent mechanism comprises a cylinder, an opening and closing part and a scraping ring, wherein the cylinder is arranged at the upper end of the closed treatment box through a fixing frame, a lifting frame is arranged at the output end of the cylinder, the scraping ring is arranged on the lifting frame in a height-adjustable manner, the opening and closing part comprises a guide overflowing cylinder, an opening jet flow bent plate and a slotted sliding ring, the guide overflowing cylinder is fixedly arranged at the lower end of the fixing frame, the guide overflowing cylinder is symmetrically provided with a mounting groove in the horizontal direction, the opening jet flow bent plate is detachably arranged in the mounting groove, the lower end of the guide overflowing cylinder is communicated with two feeding boxes through two symmetrically arranged connecting pipes, the slotted sliding rings are respectively arranged on the guide overflowing cylinder in a limited sliding manner, the concave-convex outer edges of the two slotted sliding rings are correspondingly arranged, the lower end of the slotted sliding ring is hinged with a connecting rod, the other end of the connecting rod is hinged at the lower end of the lifting frame, and the lifting frame is symmetrically provided with a heating pipe and a catalytic placing seat.
Preferably, the scraping ring is attached to the inner wall of the closed treatment box, and a sewage draining notch is arranged in the closed treatment box and right above and below the scraping ring.
Preferably, the jet flow path of the perforated jet flow curved plate is matched with the surfaces of the first sputtering fan blade and the second sputtering fan blade.
Preferably, when the output end of the cylinder extends completely, the concave-convex outer edges of the two slotted slip rings are in a separated state, and leak out of the perforated jet flow curved plate.
Preferably, when the output end of the cylinder is completely reset and retracted, the concave-convex outer edges of the two slotted slip rings are in an inserting state, and the perforated jet flow curved plate is blocked.
Preferably, a treatment process of the combined removal system of the epoxypropane wastewater and the hydrogen peroxide wastewater comprises the following steps:
s1, homogenizing pretreatment: the mass ratio of the introduced propylene oxide wastewater to the introduced hydrogen peroxide wastewater is 0.1-0.5:1, the pH of the propylene oxide wastewater is 2-10, the COD is 3000-20000 mg/L, the BOD is 200-1000 mg/L, and the B/C (BOD/COD) is 0.01-0.12; the pH value of the hydrogen peroxide wastewater is 3-5, the COD is 500-2000 mg/L, the BOD is 0-25 g/L, the B/C is 0-0.05, then the propylene oxide wastewater and the hydrogen peroxide wastewater are respectively placed in the feed boxes at the two sides, and the retention time is 12-72 h, preferably 24h;
s2, atomizing at normal temperature: spraying the homogenized epoxypropane wastewater and hydrogen peroxide wastewater in the step S1 into a closed treatment box in a reverse direction at normal temperature, respectively flushing jet flows onto a sputtering fan blade I and a sputtering fan blade II which are in a rotating state at two sides under the action of a fog state countercurrent mechanism, forming an atomization area with a vertical sectional trend in the closed treatment box in a sputtering manner, and continuously dispersing and dripping;
s3, generating low-density greasy dirt: in the S2 step, the propylene oxide wastewater in the descending stage and the upward hydrogen peroxide wastewater form a fog-state countercurrent environment, and organic impurities can be quickly attached to the inner wall of the closed treatment box under the catalysis of a catalyst in the normal-temperature environment;
s4, heating, flocculating and precipitating: and (3) after the step S3 is finished, the mixed wastewater in the closed treatment box in a closed state returns to the liquid state again after trickling polymerization, the temperature of the environment in the closed treatment box is raised, and under the action of a liquid stirring mechanism, the liquid mixed wastewater is stirred by the first sputtering fan blade and the second sputtering fan blade which are opposite in rotation direction.
The invention has the advantages that:
the liquid stirring mechanism and the fog state countercurrent mechanism are arranged on the closed treatment box, so that the propylene oxide wastewater and the hydrogen peroxide wastewater are respectively ejected by the perforated jet flow curved plates at two sides and respectively impact on the surface guide ribs of the sputtering fan blade I and the sputtering fan blade II which are in a rotating state at two sides, an atomization area with a vertical sectional trend is formed in the closed treatment box in a sputtering manner, and the fog state countercurrent environment is formed, the quick generation of low-density greasy dirt is realized at the initial stage with higher catalyst activity on the inner wall of the closed treatment box, the situation that the greasy dirt wraps up flocculating sediment is prevented, and the subsequent secondary recovery treatment is further avoided;
through plugging the perforated jet flow curved plate, and opening the heating pipe, the temperature of the environment in the sealed closed treatment box can be raised, and the catalyst in the catalytic placement seat at the same height can be directly acted on horizontally, so that the reaction activity temperature of the catalyst is ensured, the first sputtering fan blade and the second sputtering fan blade which are opposite in rotation direction of the blades are matched to perform turbulent stirring on liquid mixed wastewater, the reaction effect of flocculation precipitation is improved, and the purpose of shortening the reaction treatment time of the liquid mixed wastewater is realized.
Drawings
FIG. 1 is a process flow of the present invention.
Fig. 2 is a schematic structural diagram of the combined removal system of the present invention.
FIG. 3 is a schematic diagram of the assembly of the liquid stirring mechanism and the mist counter-current mechanism according to the present invention.
Fig. 4 is a schematic structural view of an opening and closing part in the present invention.
Fig. 5 is a schematic diagram of the internal structure of the combined removal system according to the present invention.
The device comprises a 1-closed treatment box, a 2-feeding box, a 3-liquid stirring mechanism, a 4-fog counter-current mechanism, a 301-driving motor, a 302-sputtering fan blade I, a 303-sputtering fan blade II, a 304-mounting frame, a 305-driving wheel, a 306-rotating shaft, a 307-driven wheel, a 308-synchronous belt, a 401-cylinder, a 402-opening and closing part, a 403-scraping ring, a 404-mounting frame, a 405-lifting frame, a 406-guiding overflow cylinder, a 407-opening jet flow curved plate, a 408-slotting slip ring, a 409-connecting pipe, a 410-connecting rod, a 411-heating pipe, a 412-catalysis placing seat and a 413-blowdown notch.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
The utility model provides a propylene oxide waste water and hydrogen peroxide waste water combine desorption system and treatment process, includes sealed treatment case 1, feed box 2, liquid rabbling mechanism 3 and fog state countercurrent mechanism 4, feed box 2 has two and symmetry to install in sealed treatment case 1's both sides, two feed box 2 splendid attire propylene oxide waste water and hydrogen peroxide waste water respectively, liquid rabbling mechanism 3 is installed on sealed treatment case 1 to be used for stirring the liquid mixed waste water under normal atmospheric temperature, fog state countercurrent mechanism 4 also installs on sealed treatment case 1, and is used for under the intensification state, changes fog and the flow state to the mixed waste water that is the liquid through the sputtering mode originally.
In this embodiment, the liquid stirring mechanism 3 includes a driving motor 301, a first sputtering fan blade 302 and a second sputtering fan blade 303, the driving motor 301 is mounted at the lower end of the closed processing box 1 through a mounting frame 304, two coaxially disposed driving wheels 305 are mounted at the output end of the driving motor 301, two rotating shafts 306 are vertically and rotatably mounted at the upper end of the feeding box 2, two rotating shafts 306 are rotatably mounted on the top cover of the closed processing box 1, driven wheels 307 are coaxially mounted at the lower parts of the two rotating shafts 306, the two driven wheels 307 are connected with the driving wheels 305 through synchronous belts 308, and the first sputtering fan blade 302 and the second sputtering fan blade 303 are respectively mounted on the two rotating shafts 306.
In this embodiment, the mist counter-flow mechanism 4 includes an air cylinder 401, an opening and closing part 402 and a scraping ring 403, the air cylinder 401 is mounted at the upper end of the closed treatment box 1 through a fixing frame 404, the output end of the air cylinder 401 is mounted with a lifting frame 405, the scraping ring 403 is mounted on the lifting frame 405 in a height-adjustable manner, the opening and closing part 402 includes a guiding flow-passing cylinder 406, an opening jet flow curved plate 407 and a slotted slip ring 408, the guiding flow-passing cylinder 406 is fixedly mounted at the lower end of the fixing frame 404, mounting grooves are symmetrically formed in the horizontal direction of the guiding flow-passing cylinder 406, the opening jet flow curved plate 407 is detachably arranged in the mounting grooves, the lower end of the guiding flow-passing cylinder 406 is communicated with two feed boxes 2 through two symmetrically arranged connecting pipes 409, the slotted slip ring 408 is provided with two limiting sliding plates 411 respectively and is correspondingly arranged on the guiding flow-passing cylinder 406, the lower ends of the slotted slip ring 408 are hinged with a connecting rod 410, the other ends of the connecting rod 410 are hinged at the lower end of the lifting frame 405, and the heating pipe seat 412 is symmetrically arranged.
It should be noted that, the catalyst in the catalytic placement seat 412 is a solid catalyst or a liquid catalyst wrapped by a semipermeable membrane, the rotation directions of the blades of the first sputtering fan blade 302 and the second sputtering fan blade 303 are opposite, the surfaces of the first sputtering fan blade 302 and the second sputtering fan blade 303 are rough surface treatment, the upper surface of the blade of the first sputtering fan blade 302 is provided with guide ribs at intervals, the lower surface of the blade of the second sputtering fan blade 303 is provided with guide ribs at intervals, and the jet flow path of the perforated jet flow curved plate 407 is matched with the guide ribs on the surfaces of the first sputtering fan blade 302 and the second sputtering fan blade 303.
In this embodiment, the scraping ring 403 is attached to the inner wall of the closed treatment tank 1, and the inside of the closed treatment tank 1 is provided with a drain opening 413 directly above and directly below the scraping ring 403.
It should be noted that when the output end of the cylinder 401 is fully extended, the concave-convex outer edges of the two slotted sliding rings 408 are separated, and leak out of the perforated jet curved plate 407, so that the waste water mixture can be directly injected onto the first sputtering fan blade 302 and the second sputtering fan blade 303 at two sides from the perforated jet curved plate 407.
In this embodiment, when the output end of the cylinder 401 is completely reset and retracted, the concave-convex outer edges of the two slotted slip rings 408 are in an inserted state, and the perforated jet curved plate 407 is blocked, the jet is stopped, and the closed treatment box 1 is in a closed state.
In addition, the treatment process of the combined removal system for the epoxypropane wastewater and the hydrogen peroxide wastewater comprises the following steps:
s1, homogenizing pretreatment: the mass ratio of the introduced propylene oxide wastewater to the introduced hydrogen peroxide wastewater is 0.1-0.5:1, the pH of the propylene oxide wastewater is 2-10, the COD is 3000-20000 mg/L, the BOD is 200-1000 mg/L, and the B/C (BOD/COD) is 0.01-0.12; the pH value of the hydrogen peroxide wastewater is 3-5, the COD is 500-2000 mg/L, the BOD is 0-25 g/L, the B/C is 0-0.05, then the propylene oxide wastewater and the hydrogen peroxide wastewater are respectively placed in the feed boxes 2 at the two sides, and the retention time is 12-72 h, preferably 24h;
s2, atomizing at normal temperature: at normal temperature, the propylene oxide wastewater and the hydrogen peroxide wastewater which are homogenized in the step S1 are reversely sprayed into the closed treatment box 1 at the same time, and under the action of the fog state countercurrent mechanism 4, jet flows are respectively rushed to the sputtering fan blade I302 and the sputtering fan blade II 303 which are in a rotating state at two sides, so that an atomization area with a vertical sectional trend is formed in the closed treatment box 1 in a sputtering manner, and the jet flows are continuously dispersed and trickled;
s3, generating low-density greasy dirt: in the S2 step, the propylene oxide wastewater in the descending stage and the upward hydrogen peroxide wastewater form a fog-state countercurrent environment, and organic impurities can be quickly attached to the inner wall of the closed treatment box 1 under the catalysis of a catalyst in the normal-temperature environment;
s4, heating, flocculating and precipitating: along with the end of the step S3, mixed wastewater in the closed treatment box 1 in a closed state after trickle polymerization can return to a liquid state again, the environment in the closed treatment box 1 is heated, and under the action of the liquid stirring mechanism 3, turbulent stirring is carried out on the liquid mixed wastewater by the first sputtering fan blade 302 and the second sputtering fan blade 303 which are opposite in rotation directions
Working process and principle: in the use process, firstly, the two feeding boxes 2 are respectively filled with the epoxypropane wastewater and the hydrogen peroxide wastewater to be treated, then, the driving motor 301 and the cylinder 401 are started simultaneously, the output end of the driving motor 301 drives the two driving wheels 305 to rotate, and the synchronous belt 308, the driven wheel 307 and the rotating shaft 306 drive the sputtering fan blade I302 and the sputtering fan blade II 303 on two sides to synchronously rotate;
the output end of the air cylinder 401 drives the lifting frame 405 to move downwards, so that the heating pipe 411, the catalytic placing seat 412 and the scraping ring 403 move downwards synchronously, the lower end of the lifting frame 405 drives the slotted sliding ring 408 to slide reversely on the guide overflow cylinder 406 through the connecting rods 410 at two sides, and thus the perforated jet flow curved plate 407 leaks out, so that the propylene oxide wastewater and the hydrogen peroxide wastewater are respectively ejected by the perforated jet flow curved plate 407 at two sides and respectively impact to the surface guide ribs of the sputtering fan blade one 302 and the sputtering fan blade two 303 in a two-side rotating state;
because the rotation directions of the first sputtering fan blade 302 and the second sputtering fan blade 303 are opposite, the surfaces of the first sputtering fan blade 302 and the second sputtering fan blade 303 are processed in a rough surface, and the reverse arrangement of the guide ribs is matched, so that the waste water jet forms sputtering phenomena of upward trend of hydrogen peroxide waste water and downward trend of propylene oxide waste water on the surfaces of the first sputtering fan blade 302 and the second sputtering fan blade 303 respectively, an atomization area with upward and downward sectional trend is formed in the closed treatment box 1, and a fog counter-current environment is continuously formed between the propylene oxide waste water and the upward hydrogen peroxide waste water in the descending stage, the mixed reaction area of the two waste water is greatly improved in a fog state and a drop state mode, organic impurities are quickly attached on the inner wall of the closed treatment box 1 under the catalysis of a catalyst, and the quick generation of low-density greasy dirt is realized in the initial stage with higher catalyst activity;
the cylinder 401 is started again immediately, the output end of the cylinder is reset and returned, the scraping ring 403 is driven to scrape attached oil stains, the oil stains are discharged through the upper pollution discharge opening 413, the lifting frame 405 moves upwards to drive the slotted slip rings 408 on the two sides to slide and fold in opposite directions through the connecting rod 410, the perforated jet bent plate 407 is blocked, so that the propylene oxide wastewater and the hydrogen peroxide wastewater are stopped to be supplied, mixed wastewater in the closed treatment box 1 in a closed state after trickling polymerization is returned to a liquid state, at the moment, the heating pipe 411 is started to heat the environment in the closed treatment box 1, the catalyst in the catalytic placing seat 412 can be directly acted on horizontally, so that the reaction activity temperature of the catalyst is ensured, the sputtering fan blade I302 and the sputtering fan blade II 303 which are opposite in rotation directions can also perform turbulent stirring on the liquid mixed wastewater, the reaction effect of flocculation precipitation is improved, and the submerged flocculation precipitation is discharged through the lower pollution discharge opening 413 after the reaction is finished.
Based on the above, the liquid stirring mechanism 3 and the fog state countercurrent mechanism 4 are arranged on the closed treatment box 1, so that the propylene oxide wastewater and the hydrogen peroxide wastewater are respectively ejected from the perforated jet flow curved plates 407 on two sides and respectively impact on the surface guide ribs of the sputtering fan blade I302 and the sputtering fan blade II 303 which are in a rotating state on two sides, an atomization area with a vertical sectional trend is formed in the closed treatment box 1 in a sputtering manner, and a continuous dispersing and dripping manner is formed, thereby forming a fog state countercurrent environment, realizing the rapid generation of low-density greasy dirt at the early stage with higher catalyst activity, preventing the occurrence of the condition that the greasy dirt wraps up flocculation sediment, and further avoiding influencing the subsequent secondary recovery treatment;
by plugging the perforated jet flow curved plate 407 and opening the heating pipe 411, the temperature of the internal environment of the sealed closed treatment box 1 can be raised, and the catalyst in the catalytic placement seat 412 with the same height can be directly acted on horizontally to ensure the reaction activity temperature of the catalyst, and the sputtering fan blade I302 and the sputtering fan blade II 303 with opposite rotating directions are matched to perform turbulent stirring on liquid mixed wastewater, so that the reaction effect of flocculation precipitation is improved, and the aim of shortening the reaction treatment time of the liquid mixed wastewater is fulfilled.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Claims (8)
1. The utility model provides a propylene oxide waste water and hydrogen peroxide solution waste water joint desorption system, its characterized in that, including seal processing case (1), feed box (2), liquid rabbling mechanism (3) and fog state countercurrent mechanism (4), feed box (2) have two and symmetry install in the both sides of seal processing case (1), two feed box (2) splendid attire propylene oxide waste water and hydrogen peroxide solution waste water respectively, liquid rabbling mechanism (3) are installed on seal processing case (1) to be used for stirring the liquid mixed waste water under the normal atmospheric temperature, fog state countercurrent mechanism (4) also are installed on seal processing case (1) to be used for under the intensification state, change fog and the flow state to former liquid mixed waste water through the sputtering mode.
2. The combined removal system for propylene oxide wastewater and hydrogen peroxide wastewater according to claim 1, wherein: the liquid stirring mechanism (3) comprises a driving motor (301), a first sputtering fan blade (302) and a second sputtering fan blade (303), wherein the driving motor (301) is installed at the lower end of the closed treatment box (1) through a mounting frame (304), two coaxially arranged driving wheels (305) are installed at the output end of the driving motor (301), a rotating shaft (306) is vertically and rotatably installed at the upper end of the feeding box (2), the upper ends of the two rotating shafts (306) are rotatably installed on a top cover of the closed treatment box (1), driven wheels (307) are coaxially and rotatably installed at the lower parts of the two rotating shafts (306), the two driven wheels (307) are connected with the driving wheels (305) through synchronous belts (308), and the first sputtering fan blade (302) and the second sputtering fan blade (303) are respectively installed on the two rotating shafts (306).
3. The combined removal system for propylene oxide wastewater and hydrogen peroxide wastewater according to claim 2, wherein: the rotation directions of the first sputtering fan blade (302) and the second sputtering fan blade (303) are opposite, and the surfaces of the first sputtering fan blade (302) and the second sputtering fan blade (303) are rough surface treatment with alternate concave and convex surfaces.
4. The combined removal system for propylene oxide wastewater and hydrogen peroxide wastewater according to claim 1, wherein: the mist counter-flow mechanism (4) comprises an air cylinder (401), an opening and closing part (402) and a scraping ring (403), the air cylinder (401) is installed at the upper end on a closed treatment box (1) through a fixing frame (404), a lifting frame (405) is installed at the output end of the air cylinder (401), the scraping ring (403) is installed on the lifting frame (405) in a height-adjustable mode, the opening and closing part (402) comprises a guide flow-through barrel (406), an opening and closing jet flow bent plate (407) and a slotted sliding ring (408), the guide flow-through barrel (406) is fixedly installed at the lower end of the fixing frame (404), a mounting groove is symmetrically formed in the guide flow-through barrel (406) in the horizontal direction, the opening and closing flow-through bent plate (407) is detachably arranged in the mounting groove, connecting pipes (409) which are symmetrically arranged at the lower end of the guide flow-through two connecting pipes (411) are communicated with two feed boxes (2), the slotted sliding ring (408) is arranged on the guide flow-through barrel (406) in a limiting sliding mode respectively, the two slotted sliding rings (408) are correspondingly arranged at the outer edges of the sliding ring (406), and the other end of the sliding ring (408) is provided with a corresponding slotted connecting rod (410), and the lifting seat (410) is also arranged at the other end of the lifting frame (410).
5. The combined removal system for propylene oxide wastewater and hydrogen peroxide wastewater according to claim 4, wherein: the scraping ring (403) is attached to the inner wall of the closed treatment box (1), and a sewage draining notch (413) is formed in the closed treatment box (1) and above and below the scraping ring (403).
6. The combined removal system for propylene oxide wastewater and hydrogen peroxide wastewater according to claim 4, wherein: the jet flow path of the open-pore jet flow curved plate (407) is matched with the surfaces of the first sputtering fan blade (302) and the second sputtering fan blade (303).
7. The combined removal system for propylene oxide wastewater and hydrogen peroxide wastewater according to claim 4, wherein: when the output end of the air cylinder (401) is completely extended, the concave-convex outer edges of the two slotted sliding rings (408) are in a separated state, and the concave-convex outer edges leak out of the perforated jet flow curved plate (407); when the output end of the air cylinder (401) is completely reset and retracted, the concave-convex outer edges of the two slotted sliding rings (408) are in an inserting state, and the perforated jet flow curved plate (407) is blocked.
8. The process for treating propylene oxide wastewater and hydrogen peroxide wastewater combined removal system according to any one of claims 1 to 7, comprising the steps of:
s1, homogenizing pretreatment: the mass ratio of the introduced propylene oxide wastewater to the introduced hydrogen peroxide wastewater is 0.1-0.5:1, the pH of the propylene oxide wastewater is 2-10, the COD is 3000-20000 mg/L, the BOD is 200-1000 mg/L, and the B/C (BOD/COD) is 0.01-0.12; the pH value of the hydrogen peroxide wastewater is 3-5, the COD is 500-2000 mg/L, the BOD is 0-25 g/L, the B/C is 0-0.05, then the propylene oxide wastewater and the hydrogen peroxide wastewater are respectively placed in the feed boxes (2) at the two sides, and the residence time is 12-72 h, preferably 24h;
s2, atomizing at normal temperature: at normal temperature, the propylene oxide wastewater and the hydrogen peroxide wastewater which are homogenized in the step S1 are reversely sprayed into a closed treatment box (1) at the same time, and jet flows are respectively rushed to a first sputtering fan blade (302) and a second sputtering fan blade (303) which are in a rotating state at two sides under the action of a fog state countercurrent mechanism (4), so that an atomization area with a vertical sectional trend is formed in the closed treatment box (1) in a sputtering manner, and trickle flow is continuously dispersed;
s3, generating low-density greasy dirt: in the S2 step, the propylene oxide wastewater in the descending stage and the upward hydrogen peroxide wastewater form a fog-state countercurrent environment, and organic impurities can be quickly attached to the inner wall of the closed treatment box (1) under the catalysis of a catalyst in the normal-temperature environment;
s4, heating, flocculating and precipitating: along with the end of the step S3, mixed wastewater in the closed treatment box (1) in a closed state after trickle polymerization can return to a liquid state again, the temperature of the environment in the closed treatment box (1) is raised, and under the action of the liquid stirring mechanism (3), the liquid mixed wastewater is disturbed and stirred by the first sputtering fan blade (302) and the second sputtering fan blade (303) which are opposite in rotation directions.
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| CN101659483A (en) * | 2008-08-29 | 2010-03-03 | 中国石油化工股份有限公司 | Method for treating high-concentrated non-degradable wastewater by using wastewater containing hydrogen peroxide |
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| CN217809018U (en) * | 2022-05-31 | 2022-11-15 | 中国石油化工股份有限公司 | HPPO waste water and hydrogen peroxide solution waste water combined treatment system |
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| CN117509873A (en) * | 2023-11-16 | 2024-02-06 | 江苏嘉宏新材料有限公司 | Epoxypropane waste water and hydrogen peroxide waste water combined treatment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101659483A (en) * | 2008-08-29 | 2010-03-03 | 中国石油化工股份有限公司 | Method for treating high-concentrated non-degradable wastewater by using wastewater containing hydrogen peroxide |
| CN108773938A (en) * | 2018-07-09 | 2018-11-09 | 胡良峰 | A kind of waste water desulfurization process device and processing method |
| CN217809018U (en) * | 2022-05-31 | 2022-11-15 | 中国石油化工股份有限公司 | HPPO waste water and hydrogen peroxide solution waste water combined treatment system |
| CN219429782U (en) * | 2022-12-29 | 2023-07-28 | 山东拓路智能装备有限公司 | Sewage zero release treater |
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