CN113860676A - Method for removing degradation-resistant organic matters in polluted bottom mud and application - Google Patents
Method for removing degradation-resistant organic matters in polluted bottom mud and application Download PDFInfo
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- CN113860676A CN113860676A CN202111219784.3A CN202111219784A CN113860676A CN 113860676 A CN113860676 A CN 113860676A CN 202111219784 A CN202111219784 A CN 202111219784A CN 113860676 A CN113860676 A CN 113860676A
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- 238000000034 method Methods 0.000 title claims abstract description 42
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- 238000006731 degradation reaction Methods 0.000 title claims abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 49
- 239000001301 oxygen Substances 0.000 claims abstract description 49
- 239000012286 potassium permanganate Substances 0.000 claims abstract description 46
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000005273 aeration Methods 0.000 claims abstract description 41
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 239000003814 drug Substances 0.000 claims abstract description 12
- 229910052742 iron Inorganic materials 0.000 claims abstract description 11
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- 238000005345 coagulation Methods 0.000 claims abstract description 10
- 239000005416 organic matter Substances 0.000 claims abstract description 10
- 238000006479 redox reaction Methods 0.000 claims abstract description 9
- 230000000593 degrading effect Effects 0.000 claims abstract description 8
- -1 iron ions Chemical class 0.000 claims abstract description 8
- 230000001590 oxidative effect Effects 0.000 claims abstract description 8
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 24
- 230000007246 mechanism Effects 0.000 claims description 19
- 239000010802 sludge Substances 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910021389 graphene Inorganic materials 0.000 claims description 13
- 239000002957 persistent organic pollutant Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 239000013049 sediment Substances 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 239000000701 coagulant Substances 0.000 claims description 5
- 230000016615 flocculation Effects 0.000 claims description 5
- 238000005189 flocculation Methods 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 11
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 4
- 244000005700 microbiome Species 0.000 description 3
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- 239000010865 sewage Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/006—Electrochemical treatment, e.g. electro-oxidation or electro-osmosis
-
- 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
-
- 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
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
-
- 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
- C02F1/74—Treatment of water, waste water, or sewage by oxidation with air
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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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—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
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
Abstract
The invention relates to the technical field of advanced environment-friendly industry, in particular to a method for removing refractory organic matters in polluted bottom mud and application thereof, which comprises the following steps of S1, installing an aeration component in the polluted bottom mud, wherein an electrode component and the aeration component are both positioned in the polluted bottom mud; s2, adjusting the pH value of the micro-electrolysis effluent to be in an alkaline condition through an iron-carbon micro-electrolysis reaction, performing coagulation reaction, forming Fe (OH)2 and Fe (OH)3 by iron ions, and oxidizing Fe2+ into Fe3+ under the condition of sufficient oxygen supply, and further performing redox reaction for degrading refractory organic matters; s3, adopting mixed potassium permanganate and ultraviolet irradiation for further processing the refractory organic matter reaction after the electrolysis treatment; the invention ensures that the high-efficiency aeration treatment can be realized in the degradation treatment process of the refractory organic matters, and the potassium permanganate medicament can be combined with ultraviolet rays to further treat the refractory organic matters in the high-efficiency aeration treatment process, so that the refractory organic matters are degraded to a greater extent.
Description
Technical Field
The invention relates to the technical field of advanced environment-friendly industry, in particular to a method for removing difficultly degraded organic matters in polluted bottom mud and application thereof.
Background
Refractory organics generally refer to organic chemicals that are difficult to degrade by biological action under natural conditions. Organic matters are degraded by microorganisms and converted into inorganic matters, and the inorganic matters are synthesized into various organic matters through life activities, which is the basic cycle of biogeochemistry in nature. The synthetic detergents, organic chlorine pesticides, polychlorinated biphenyl and other compounds are difficult to biodegrade in water, and fat and oil in nitrogen-free organic matters are also difficult to degrade substances which are often gradually concentrated through a food chain to cause harm; during production, use and after use, the water enters water body through various ways to cause pollution.
The organic matters which are difficult to degrade are not easy to biodegrade, and can be continuously accumulated in natural environments such as water, soil and the like, and then enter organisms through food chains and are gradually enriched. They are harmful not only to the health of living beings, but also to the entire ecosystem, and finally to the human body, and to human health. At present, the domestic and foreign treatment method for the organic wastewater difficult to degrade mainly comprises a physical and chemical pretreatment technology, a biological main body treatment technology and the like.
In the current treatment process of the refractory organic matters polluting the bottom sludge, the high-efficiency aeration treatment of the refractory organic matters is not realized, and the lower efficiency of the aeration treatment can not realize the degradation of the refractory organic matters to a large extent, so that the residual refractory organic matters in the bottom sludge can not be removed, and the bottom sludge still has the hidden danger of pollution.
Disclosure of Invention
The invention aims to provide a method for removing difficultly degraded organic matters in polluted bottom mud and application thereof, which comprises the following steps,
step 1, installing an aeration component in polluted bottom sediment, wherein an electrode component and the aeration component are both positioned in the polluted bottom sediment;
and 3, after the electrolysis treatment, discharging the wastewater subjected to the electrolytic oxidation treatment in the electrolytic cell through a water outlet pipe of the electrolytic cell, and after the electrolysis treatment, adopting mixed potassium permanganate and ultraviolet irradiation for further treating the refractory organic matter reaction.
Optionally, the aeration subassembly comprises support body, oxygen generator, adjustment mechanism and electrode subassembly, oxygen generator installs on the support body, adjustment mechanism sets up the bottom at the support body, electrode subassembly sets up the bottom at adjustment mechanism, the electrode subassembly bottom is provided with potassium permanganate release mechanism, the support body includes mounting bracket and landing leg, landing leg fixed connection is in the bottom both sides of mounting bracket, oxygen generator fixed mounting is at the top of mounting bracket.
Optionally, adjustment mechanism includes first pneumatic cylinder, second pneumatic cylinder, slip locating sleeve and motor, first pneumatic cylinder fixed mounting is in bottom one side of mounting bracket, the output of first pneumatic cylinder passes through slip ring sliding connection in electrode subassembly top one side, second pneumatic cylinder fixed mounting is in the bottom opposite side of mounting bracket, the output of second pneumatic cylinder passes through slip ring sliding connection in electrode subassembly top opposite side.
Optionally, sliding location sleeve fixed connection is in mounting bracket bottom middle part, sliding location sleeve comprises two gliding inside and outside sleeves of each other, motor fixed mounting is in the bottom of sliding location sleeve inner tube, the output of motor rotates through rotating the top of connecting at electrode subassembly.
Optionally, the electrode assembly includes an upper plate, a lower plate, an elastic sealing ring, a communicating pipe, and an electrode plate disposed between the upper plate and the lower plate.
Optionally, the electrode plate is composed of a positive electrode plate and a negative electrode plate, the positive electrode plate and the negative electrode plate are both made of graphene plates, and the content of graphene in the graphene plates is 6 ppm-180 ppm.
Optionally, the upper plate and the lower plate are respectively and fixedly connected to two ends of the inner wall of the elastic sealing ring, and the communicating pipes are arranged on the side wall of the elastic sealing ring at equal intervals.
Optionally, an oxygen tube is fixedly mounted at an output end of the oxygen generator, the oxygen tube is mounted at the top of the upper plate, and the oxygen tube penetrates through the upper plate.
Potassium permanganate release mechanism includes that potassium permanganate solution places dish, check valve and annular ultraviolet lamp, equidistant fixed mounting of check valve places a set lateral wall at potassium permanganate solution, annular ultraviolet lamp fixed mounting places the bottom of dish at potassium permanganate solution.
A method for removing the refractory organics from polluted bottom mud includes such steps as providing a sewage pool, collecting the sewage pool,
step 1, carrying out deslagging treatment on the polluted bottom mud, and carrying out aeration treatment on the polluted bottom mud by using an aeration component;
and 4, finally, performing flocculation adsorption on Fe (OH)2 and Fe (OH)3 under the action of a coagulant aid, and adsorbing again to remove part of organic pollutants and reduce the volume of sludge.
Compared with the prior art, the invention has the beneficial effects that:
the invention leads oxygen to the cathode plate of the electrolytic cell through the aeration component, and continuously adds FeSO 4.7H 2O aqueous solution into the electrolytic cell, adjusts the pH value of the micro-electrolyzed water to alkaline condition, and generates coagulation reaction, iron ions form Fe (OH)2 and Fe (OH)3, utilizes an external direct current power supply to lead direct current on the electrode plate of the electrolytic cell, under the condition of sufficient oxygen supply, Fe2+ is oxidized into Fe3+, further generates redox reaction, degrades organic matters, drives a potassium permanganate solution placing disc to rotate or move up and down and back and forth through the aeration component after one end of the treatment, thereby fusing potassium permanganate medicament into sludge and combining with the cooperative use of an annular ultraviolet lamp to realize the treatment of the organic pollutants which are difficult to degrade, fully realizing the overall degradation of the organic matters which are difficult to degrade, and simultaneously leading the nascent state Fe (OH)3 to have better coagulation adsorption effect, then Fe (OH)2 and Fe (OH)3 are subjected to flocculation adsorption under the action of a coagulant aid, part of organic pollutants are removed by adsorption again, the volume amount of sludge is reduced, high-efficiency aeration treatment can be realized in the degradation treatment process of the refractory organic matters, and the refractory organic matters can be further treated by combining potassium permanganate medicaments with ultraviolet rays in the high-efficiency aeration treatment process, so that the refractory organic matters are degraded to a greater extent, and secondary pollution caused by residual refractory organic matters existing in polluted bottom mud is avoided.
Drawings
FIG. 1 is a flow chart of the method of the present invention;
FIG. 2 is a schematic view of the structure of the processing apparatus of the present invention.
The reference numbers illustrate:
11. a mounting frame; 12. a support leg; 2. an oxygen generator; 21. an oxygen delivery tube; 3. a first hydraulic cylinder; 4. a second hydraulic cylinder; 5. sliding the positioning sleeve; 6. a motor; 71. an upper plate; 72. a lower plate; 73. an elastic sealing ring; 74. a communicating pipe; 75. an electrode; 81. placing a potassium permanganate solution in a tray; 82. a one-way valve; 83. an annular ultraviolet lamp.
The objects, features, and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, the present invention provides a method for removing refractory organics from contaminated bottom mud and application thereof, comprising the following steps,
step 1, installing an aeration component in polluted bottom sediment, wherein an electrode component and the aeration component are both positioned in the polluted bottom sediment;
and 3, after the electrolysis treatment, discharging the wastewater subjected to the electrolytic oxidation treatment in the electrolytic cell through a water outlet pipe of the electrolytic cell, and further treating the refractory organic matter by adopting mixed potassium permanganate under the irradiation of ultraviolet rays after the electrolysis treatment.
Referring to fig. 2, the aeration assembly is composed of a frame body, an oxygen generator 2, a regulating mechanism, and an electrode assembly, and the oxygen generator 2 is mounted on the frame body. The adjusting mechanism is arranged at the bottom of the frame body. Adjustment mechanism can realize electrode subassembly's lift reciprocating motion and swing and rotary motion, can drive potassium permanganate solution simultaneously and place dish 81 and carry out lift reciprocating motion and swing and rotary motion to the realization is to the different release mode of potassium permanganate solution. The electrode assembly is disposed at the bottom of the adjustment mechanism. In some embodiments, the bottom of the electrode assembly is provided with a potassium permanganate release mechanism. The frame body comprises a mounting frame 11 and supporting legs 12, the supporting legs 12 are fixedly connected with two sides of the bottom end of the mounting frame 11, the oxygen generator 2 is fixedly arranged at the top of the mounting frame 11, the adjusting mechanism comprises a first hydraulic cylinder 3 and a second hydraulic cylinder 4, the device comprises a sliding positioning sleeve 5 and a motor 6, wherein a first hydraulic cylinder 3 is fixedly arranged on one side of the bottom of a mounting frame 11, the output end of the first hydraulic cylinder 3 is connected to one side of the top of an electrode assembly in a sliding mode through a sliding ring, a second hydraulic cylinder 4 is fixedly arranged on the other side of the bottom of the mounting frame 11, the output end of the second hydraulic cylinder 4 is connected to the other side of the top of the electrode assembly in a sliding mode through the sliding ring, the sliding positioning sleeve 5 is fixedly connected to the middle of the bottom end of the mounting frame 11, the sliding positioning sleeve 5 is composed of two inner and outer sleeves which slide with each other, the motor 6 is fixedly arranged at the bottom of an inner barrel of the sliding positioning sleeve 5, and the output end of the motor 6 is rotatably connected to the top of the electrode assembly through a rotating part; utilize landing leg 12 to install in the electrolytic bath, can realize the up-and-down reciprocating motion of aeration subassembly through first pneumatic cylinder 3 and the synchronous operation of second pneumatic cylinder 4, the inboard sliding barrel shrink of slide positioning sleeve 5 in the up-and-down reciprocating motion in-process in the sliding barrel in the outside, control the reverse operation of first pneumatic cylinder 3 and second pneumatic cylinder 4, realize the lift oscillating motion of aeration subassembly, can drive the aeration subassembly through motor 6 and rotate, the rotary motion of aeration subassembly has been realized, thereby can realize different aeration modes.
Referring to fig. 2, the electrode assembly includes an upper plate 71, a lower plate 72, an elastic sealing ring 73, a communicating pipe 74, and an electrode plate 75, where the electrode plate 75 is disposed between the upper plate 71 and the lower plate 72, and the electrode plate 75 is formed of positive and negative electrode plates, both of which are made of graphene plates. The content of graphene in the graphene plate is 6 ppm-180 ppm. In some embodiments, the graphene plate has a graphene content of 60ppm to 180 ppm. In some embodiments, the graphene plate has a graphene content of 120ppm to 180 ppm. The upper plate 71 and the lower plate 72 are respectively fixedly connected to two ends of the inner wall of the elastic sealing ring 73, the communicating pipes 74 are arranged on the side wall of the elastic sealing ring 73 at equal intervals, the oxygen supply pipe 21 is fixedly arranged at the output end of the oxygen generator 2, the oxygen supply pipe 21 is arranged at the top of the upper plate 71, and the oxygen supply pipe 21 penetrates through the upper plate 71; through the cooperation of the upper plate 71 and the lower plate 72, the shaking is realized under the action of the elastic sealing ring 73, meanwhile, the communication pipe 74 is used for realizing the communication between the inside and the outside of the elastic sealing ring 73, and then the electrolytic treatment can be realized by using the electrified electrode plate 75.
Referring to fig. 2, the potassium permanganate release mechanism includes a potassium permanganate solution placing plate 81, a one-way valve 82 and an annular ultraviolet lamp 83, the one-way valve 82 is fixedly installed on the side wall of the potassium permanganate solution placing plate 81 at equal intervals, and the annular ultraviolet lamp 83 is fixedly installed at the bottom of the potassium permanganate solution placing plate 81; when the motor 6 drives the electrode assembly to rotate, the potassium permanganate solution placing disc 81 can be driven to rotate, so that the potassium permanganate solution is discharged to the side wall of the potassium permanganate solution placing disc 81 in the rotating process through the one-way valve 82, and ultraviolet rays are emitted by the annular ultraviolet lamp 83 to irradiate, thereby realizing the degradation treatment of refractory organic matters, the first hydraulic cylinder 3 and the second hydraulic cylinder 4 can cooperatively or reversely operate, thereby realizing the lifting reciprocating motion or the left-right fluctuating swing of the electrode assembly, driving the potassium permanganate solution placing disc 81 to perform the lifting reciprocating motion or the left-right fluctuating swing, discharging the potassium permanganate solution in the shaking and swinging process through the one-way valve 82, diffusing the potassium permanganate around by one end of the one-way valve 82 in the shaking and swinging process, and simultaneously emitting ultraviolet rays by the annular ultraviolet lamp 83 to irradiate, thereby realize carrying out degradation treatment to difficult degradation organic matter, guarantee potassium permanganate solution discharge evenly distributed and ultraviolet position reasonable, can further comprehensive handle remaining difficult degradation organic matter.
Example 1
A method for removing non-degradable organic matters of polluted bottom mud and an application thereof comprise the following steps:
step 1, carrying out deslagging treatment on the polluted bottom sludge, and carrying out aeration treatment in the polluted bottom sludge by utilizing an aeration component, wherein the aeration implementation mode is as follows: oxygen is conveyed to the electrode assembly through the oxygen generator 2 through the oxygen conveying pipe 21, and meanwhile, the first hydraulic cylinder 3 and the second hydraulic cylinder 4 run in a coordinated or reverse mode, so that the electrode assembly can move up and down in a reciprocating mode or swing up and down left and right, and meanwhile, the electrode assembly slides in the outer cylinder in the sliding positioning sleeve 5 in the reciprocating process, so that the electrode assembly can perform reciprocating aeration treatment in the lifting reciprocating process, aeration is concentrated at a certain part, the oxidation reaction is severe, and partial treatment of organic matters difficult to degrade is thorough;
step 3, adjusting the pH value of the micro-electrolysis effluent to be in an alkaline condition, performing coagulation reaction, forming Fe (OH)2 and Fe (OH)3 by iron ions, electrifying direct current on an electrode plate 75 of the electrolytic cell by utilizing an external direct current power supply, oxidizing Fe2+ into Fe3+ under the condition of sufficient oxygen supply, further performing redox reaction, reducing nitrobenzene into amino by active metal due to the reducing capacity of iron, reducing the color of the reduced amino organic matter, and enabling the amino organic matter to be easily oxidized and decomposed by microorganisms, reducing the chroma in the wastewater, degrading organic matters, driving a potassium permanganate solution placing plate 81 to perform lifting reciprocating motion by an aeration component after one end of treatment, thereby fusing a potassium permanganate medicament into sludge, realizing the treatment of the organic pollutants difficult to degrade by combining the synergistic use of an annular ultraviolet lamp 83, and fully realizing the comprehensive degradation of the organic matters difficult to degrade, the dosage of the potassium permanganate medicament is about 0.2-0.8 g/L, the potassium permanganate medicament and ultraviolet light are combined for deeply treating the landfill leachate, the pollution removal efficiency is excellent, the CODCr removal rate reaches 80%, the UV335 discoloration rate reaches more than 95%, and the sterilization effect is good;
and 4, finally, performing flocculation adsorption on Fe (OH)2 and Fe (OH)3 under the action of a coagulant aid, and adsorbing again to remove part of organic pollutants and reduce the volume of sludge.
Example 2
A method for removing non-degradable organic matters of polluted bottom mud and an application thereof comprise the following steps:
step 1, carrying out deslagging treatment on the polluted bottom sludge, and carrying out aeration treatment in the polluted bottom sludge by utilizing an aeration component, wherein the aeration implementation mode is as follows: oxygen is conveyed to the electrode assembly through the oxygen generator 2 through the oxygen conveying pipe 21, meanwhile, the motor 6 drives the electrode assembly to rotate through the conveying shaft, and meanwhile, one end of the first hydraulic cylinder 3 and one end of the second hydraulic cylinder 4 slide on the top of the electrode assembly, so that the electrode assembly can be aerated in the rotating motion process, aeration is guaranteed to be uniformly distributed near the electrodes respectively, oxygen is distributed uniformly, the reaction degree of oxidation reaction is consistent, the treatment range of refractory organic matters is wider, and the efficiency is higher;
step 3, adjusting the pH value of the micro-electrolysis effluent to be in an alkaline condition, performing coagulation reaction, forming Fe (OH)2 and Fe (OH)3 by iron ions, electrifying direct current on an electrode plate 75 of the electrolytic cell by utilizing an external direct current power supply, oxidizing Fe2+ into Fe3+ under the condition of sufficient oxygen supply, further performing redox reaction, reducing nitrobenzene into amino by active metal due to the reduction capability of iron, reducing the color of the reduced amino organic matter, and enabling the amino organic matter to be easily oxidized and decomposed by microorganisms, reducing the chroma in the wastewater, degrading organic matters, driving a potassium permanganate solution placing plate 81 to rotate by an aeration component after one end of treatment, thereby fusing the potassium permanganate medicament into the sludge, realizing the treatment of the organic pollutants difficult to degrade by combining the synergistic use of an annular ultraviolet lamp 83, and fully realizing the comprehensive degradation of the organic matters difficult to degrade, the dosage of the potassium permanganate medicament is about 0.2-0.8 g/L, the potassium permanganate medicament and ultraviolet light are combined for deeply treating the landfill leachate, the pollution removal efficiency is excellent, the CODCr removal rate reaches 80%, the UV335 discoloration rate reaches more than 95%, and the sterilization effect is good;
and 4, finally, performing flocculation adsorption on Fe (OH)2 and Fe (OH)3 under the action of a coagulant aid, and adsorbing again to remove part of organic pollutants and reduce the volume of sludge.
While the invention has been described in further detail in connection with specific embodiments thereof, it will be understood that the invention is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention, which should be considered to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. A method for removing non-degradable organic matters of polluted bottom mud and application thereof are characterized in that: comprises the following steps of (a) carrying out,
s1, installing an aeration component in the polluted bottom sediment, wherein the electrode component and the aeration component are both positioned in the polluted bottom sediment;
s2, adjusting the pH value of the micro-electrolysis effluent to be in an alkaline condition through an iron-carbon micro-electrolysis reaction, performing coagulation reaction, forming Fe (OH)2 and Fe (OH)3 by iron ions, and oxidizing Fe2+ into Fe3+ under the condition of sufficient oxygen supply, and further performing redox reaction for degrading refractory organic matters;
and S3, discharging the wastewater after electrolytic oxidation treatment in the electrolytic cell through a water outlet pipe of the electrolytic cell after electrolytic treatment, and further treating the refractory organic matter by adopting mixed potassium permanganate under ultraviolet irradiation after electrolytic treatment.
2. The method and the application of claim 1 for removing refractory organics in polluted bottom mud, wherein the method comprises the following steps: the aeration subassembly comprises support body, oxygen generator (2), adjustment mechanism and electrode subassembly, oxygen generator (2) are installed on the support body, adjustment mechanism sets up the bottom at the support body, electrode subassembly sets up the bottom at adjustment mechanism, the electrode subassembly bottom is provided with potassium permanganate release mechanism, the support body includes mounting bracket (11) and landing leg (12), landing leg (12) fixed connection is in the bottom both sides of mounting bracket (11), oxygen generator (2) fixed mounting is at the top of mounting bracket (11).
3. The method and the application of claim 2 for removing the refractory organics in the polluted bottom mud, wherein the method comprises the following steps: adjustment mechanism includes first pneumatic cylinder (3), second pneumatic cylinder (4), slip positioning sleeve (5) and motor (6), first pneumatic cylinder (3) fixed mounting is in bottom one side of mounting bracket (11), the output of first pneumatic cylinder (3) passes through slip ring sliding connection in top one side of electrode subassembly, second pneumatic cylinder (4) fixed mounting is in the bottom opposite side of mounting bracket (11), second pneumatic cylinder (4) output passes through slip ring sliding connection at the top opposite side of electrode subassembly.
4. The method and the application of claim 3 for removing the refractory organics in the polluted bottom mud, wherein the method comprises the following steps: sliding location sleeve (5) fixed connection is in mounting bracket (11) bottom middle part, sliding location sleeve (5) comprises two gliding inside and outside sleeves of each other, motor (6) fixed mounting is in the bottom of sliding location sleeve (5) inner tube, the output of motor (6) rotates through rotating the top of connecting at electrode subassembly.
5. The method and the application of claim 2 for removing the refractory organics in the polluted bottom mud, wherein the method comprises the following steps: the electrode assembly comprises an upper plate (71), a lower plate (72), an elastic sealing ring (73), a communicating pipe (74) and an electrode plate (75), wherein the electrode plate (75) is arranged between the upper plate (71) and the lower plate (72).
6. The method and the application of claim 5 for removing the refractory organics in the polluted bottom mud, wherein the method comprises the following steps: the electrode plate (75) is composed of a positive electrode plate and a negative electrode plate, the positive electrode plate and the negative electrode plate are both made of graphene plates, and the content of graphene in the graphene plates is 6 ppm-180 ppm.
7. The method and the application of claim 5 for removing the refractory organics in the polluted bottom mud, wherein the method comprises the following steps: the upper plate (71) and the lower plate (72) are fixedly connected to two ends of the inner wall of the elastic sealing ring (73) respectively, and the communicating pipes (74) are arranged on the side wall of the elastic sealing ring (73) at equal intervals.
8. The method and the application of claim 5 for removing the refractory organics in the polluted bottom mud, wherein the method comprises the following steps: the oxygen generator is characterized in that an oxygen conveying pipe (21) is fixedly installed at the output end of the oxygen generator (2), the oxygen conveying pipe (21) is installed at the top of the upper plate (71), and the oxygen conveying pipe (21) penetrates through the upper plate (71).
9. The method and the application of claim 2, wherein the potassium permanganate release mechanism comprises a potassium permanganate solution placing plate (81), a one-way valve (82) and an annular ultraviolet lamp (83), the one-way valve (82) is fixedly installed on the side wall of the potassium permanganate solution placing plate (81) at equal intervals, and the annular ultraviolet lamp (83) is fixedly installed at the bottom of the potassium permanganate solution placing plate (81).
10. The method for removing the refractory organics in the polluted bottom mud and the application thereof according to any one of claims 1 to 9, wherein the method comprises the following steps: the method specifically comprises the following steps of,
step 1, carrying out deslagging treatment on the polluted bottom mud, and carrying out aeration treatment on the polluted bottom mud by using an aeration component;
step 2, introducing oxygen near a cathode plate of the electrolytic cell by using an oxygen conveying pipe (21), and continuously adding a certain amount of 6-10% FeSO 4.7H 2O aqueous solution into the electrolytic cell to ensure that the concentration of Fe2+ in water is 1-8 mmol/L;
step 3, adjusting the pH value of the micro-electrolysis effluent to be in an alkaline condition, performing coagulation reaction, forming Fe (OH)2 and Fe (OH)3 by iron ions, electrifying direct current on an electrode plate (75) of the electrolytic cell by utilizing an external direct current power supply, oxidizing Fe2+ into Fe3+ under the condition of sufficient oxygen supply, further performing redox reaction, degrading organic matters, driving a potassium permanganate solution placing disc (81) to rotate or reciprocate up and down by an aeration component after a period of time passes, so that a potassium permanganate medicament is fused into sludge, and the potassium permanganate medicament is combined with a ring-shaped ultraviolet lamp (83) to realize the treatment of the organic pollutants difficult to degrade, and fully realizing the comprehensive degradation of the organic pollutants difficult to degrade;
and 4, finally, performing flocculation adsorption on Fe (OH)2 and Fe (OH)3 under the action of a coagulant aid, and adsorbing again to remove part of organic pollutants and reduce the volume of sludge.
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| CN207192884U (en) * | 2017-08-07 | 2018-04-06 | 深圳盖雅环境科技有限公司 | A kind of electric flocculation unit, electric flocculation device and heavy metal waste water treatment system |
| CN108996718A (en) * | 2018-07-10 | 2018-12-14 | 深圳市玖品空气净化科技有限公司 | A kind of aerating system with regulatory function for sewage treatment |
| CN110104794A (en) * | 2019-05-14 | 2019-08-09 | 华南理工大学 | The method that the black smelly bed mud in polluted river channel/lake and water body are simultaneously and rapidly repaired |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207192884U (en) * | 2017-08-07 | 2018-04-06 | 深圳盖雅环境科技有限公司 | A kind of electric flocculation unit, electric flocculation device and heavy metal waste water treatment system |
| CN108996718A (en) * | 2018-07-10 | 2018-12-14 | 深圳市玖品空气净化科技有限公司 | A kind of aerating system with regulatory function for sewage treatment |
| CN110104794A (en) * | 2019-05-14 | 2019-08-09 | 华南理工大学 | The method that the black smelly bed mud in polluted river channel/lake and water body are simultaneously and rapidly repaired |
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