CN112794431A - Method for simultaneously producing heat by degrading alkaline light yellow O in wastewater through pore plate hydrodynamic cavitation - Google Patents
Method for simultaneously producing heat by degrading alkaline light yellow O in wastewater through pore plate hydrodynamic cavitation Download PDFInfo
- Publication number
- CN112794431A CN112794431A CN202011604407.7A CN202011604407A CN112794431A CN 112794431 A CN112794431 A CN 112794431A CN 202011604407 A CN202011604407 A CN 202011604407A CN 112794431 A CN112794431 A CN 112794431A
- Authority
- CN
- China
- Prior art keywords
- degradation
- wastewater
- pipeline
- light yellow
- orifice plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 78
- 239000011148 porous material Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000000593 degrading effect Effects 0.000 title claims abstract description 18
- 238000006731 degradation reaction Methods 0.000 claims abstract description 142
- 230000015556 catabolic process Effects 0.000 claims abstract description 139
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 238000004519 manufacturing process Methods 0.000 claims abstract description 26
- 229920000742 Cotton Polymers 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- 238000005338 heat storage Methods 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 3
- -1 hydroxyl free radical Chemical class 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 11
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 230000001590 oxidative effect Effects 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000006864 oxidative decomposition reaction Methods 0.000 abstract 1
- 239000000975 dye Substances 0.000 description 28
- 239000000243 solution Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 18
- 125000002091 cationic group Chemical group 0.000 description 16
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 14
- 125000004122 cyclic group Chemical group 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 9
- 230000000630 rising effect Effects 0.000 description 8
- 230000020169 heat generation Effects 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 238000007639 printing Methods 0.000 description 5
- 150000003254 radicals Chemical class 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004043 dyeing Methods 0.000 description 4
- 239000002516 radical scavenger Substances 0.000 description 4
- 238000009303 advanced oxidation process reaction Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 210000003934 vacuole Anatomy 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000979 synthetic dye Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
- F24V40/00—Production or use of heat resulting from internal friction of moving fluids or from friction between fluids and moving bodies
- F24V40/10—Production or use of heat resulting from internal friction of moving fluids or from friction between fluids and moving bodies the fluid passing through restriction means
-
- 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
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
Abstract
The invention relates to a method for degrading alkaline light yellow O in wastewater and simultaneously generating heat by orifice plate hydrodynamic cavitation. The system for degrading and generating heat by using the orifice plate hydrodynamic cavitation comprises the following steps: and adding wastewater containing the alkaline light yellow O into the degradation tank, circulating the wastewater containing the alkaline light yellow O between the main circulating pipeline and the degradation tank through a water pump, controlling the pressure at the water inlet end of the pore plate to be 1.0-5.0 bar, and performing circulating degradation for 90 min. The invention utilizes the orifice plate hydrodynamic cavitation degradation heat production system, and utilizes the high temperature and high pressure generated by cavitation bubble collapse in the hydrodynamic cavitation process and active groups such as strong oxidative hydroxyl free radical and superoxide free radical generated by water cracking to carry out high-efficiency oxidative decomposition on organic matters in the dye wastewater, so that the organic matters become harmless gas and numerous inorganic substances. The solution in the degradation tank is heated while organic pollutants are degraded through the hydrodynamic cavitation process, and is stored and utilized, so that the environmental protection aim of purifying dye wastewater and providing high-temperature hot water is achieved.
Description
Technical Field
The invention belongs to the field of hydrodynamic cavitation application, and particularly relates to a method for degrading cationic dye basic light yellow O under hydrodynamic cavitation conditions by using an orifice plate as a cavitator and utilizing generated heat.
Background
The cationic dye is one of textile dyes, is dissolved in water to be in a cationic state, and is ionized into colored ions with positive charges in an aqueous solution. The cation of the dye can be combined with the acid group of the third monomer in the fabric, so that the fabric can obtain bright and firm color, and has the characteristics of complex structure, difficult degradation and strong durability. Most of the dyes used at present are industrial synthetic dyes, which cause high organic pollutant content, large alkalinity and large water quality change of printing and dyeing wastewater, and become one of the industrial wastewater difficult to treat. The printing and dyeing wastewater can cause serious harm to the ecological environment, thereby threatening the health of human beings. Millions of tons of wastewater are discharged each year, from sources such as plastics, textiles, leather, cosmetics, paper, printing and dye manufacturing. Cationic dyes can be classified according to two classification methods of application performance and chemical structure type, the dyes are classified into common type, X type and M type in the aspect of application performance, and the dyes are classified into isolation type and conjugate type according to the difference of the chemical structure of the composition form of cationic charges and dye chromophore conjugates in dye molecules.
The prior dye wastewater treatment method comprises the following steps: coagulating sedimentation, adsorption, biological, chemical oxidation, biological treatment, etc. However, the traditional treatment methods have the defects and limitations of large material consumption, high cost, low efficiency, low recycling rate, long degradation period, low COD and TOC removal rate, insufficient strength, incomplete decomposition and the like. The methods can not effectively treat the dye wastewater, and the use of the methods can cause secondary pollution, so the degradation effect on the printing and dyeing wastewater is not ideal. In recent years, the advanced oxidation process has good oxidation capability on complex organic pollutants difficult to degrade, so that the advanced oxidation process becomes an effective technology with wide development potential and application prospect. Generally, the advanced oxidation process includes Fenton oxidation, photocatalytic oxidation, electrochemical oxidation, ultrasonic cavitation, and the like. The high-activity hydroxyl free radical is prepared by adding oxidant and catalyst into water or by ultrasonic or ultraviolet radiation to initiate the fast chain reaction with organic pollutant and non-selectively oxidize harmful matter into CO2、H2O or inorganic salt, thereby effectively degrading the dye wastewater. In particular, the hydrodynamic cavitation is used as a novel advanced oxidation technology and is used for large-scale dye wastewaterTreatment and low cost investment provide the possibility and are considered to be a very promising method for organic wastewater degradation.
Hydrodynamic cavitation refers to the process of formation, development and collapse of vapor or gas pore vacuoles within a liquid or at the liquid-solid interface as the local pressure within the liquid is reduced. As the solution flows through the cavitation device, the throttling action of the device causes the liquid pressure to drop sharply and the liquid velocity to rise sharply. When the liquid pressure at the corresponding temperature is lower than the saturated vapor pressure, the liquid is liquefied to generate a large amount of raw biomass, and cavitation is gradually formed as the liquid gradually expands and the pressure inside the throttling device is restored. Finally, the cavitation bubbles continue to grow until they collapse. Collapse of the vacuole in a very short time (10)-3Milliseconds), generates strong shock waves with extremely high destructive power, and local high temperature (5000-10000 ℃) and high pressure (500-1000 atm). While the diffusion of a large number of hydroxyl radicals generated in these radicals into a liquid medium can oxidize the cationic dyes in wastewater, the generated hydrogen radicals can combine with dissolved oxygen in water to generate superoxide radicals, and can also effectively remove the cationic dyes in water.
The basic bright yellow O is a yellow cationic dye which is easy to dissolve in water, is widely used in textile, leather and printing and dyeing industries, and can generate toxic action on human bodies after being ingested, so that the degradation of the basic bright yellow O is very necessary.
Disclosure of Invention
The invention provides a method for degrading alkaline light yellow O in waste water by orifice plate hydrodynamic cavitation and generating heat simultaneously, aiming at solving the problems that the waste water containing the alkaline light yellow O can not be completely, efficiently, rapidly and thoroughly treated and the generated waste heat can not be reasonably utilized. The invention achieves remarkable results by degrading the dye wastewater by using the efficient and green hydrodynamic cavitation system, and simultaneously, a high-temperature heat source generated in the degradation process can be effectively utilized, thereby protecting the environment and saving resources.
In order to achieve the purpose, the invention adopts the technical scheme that: a method for simultaneously generating heat by degrading basic light yellow O in wastewater through orifice plate hydrodynamic cavitation utilizes an orifice plate hydrodynamic cavitation degradation heat generation system, and comprises the following steps: adding wastewater containing alkaline light yellow O into a degradation tank, enabling the wastewater containing the alkaline light yellow O to enter a main circulation pipeline through an inlet end of the main circulation pipeline through a water pump, enabling the wastewater to flow back to the degradation tank along the pipeline through an outlet end of the main circulation pipeline after flowing through a pore plate arranged on the main circulation pipeline, controlling the pressure at an inlet end of the pore plate to be 1.0-5.0 bar through a valve II on a secondary line, and performing cyclic degradation for 90 min; then opening a valve III, and introducing the high-temperature degraded wastewater in the degradation tank into a thermal storage tank for storage and utilization;
the orifice plate hydraulic cavitation degradation heat production system comprises a degradation pool, a main circulation pipeline, a secondary line and a heat storage tank; the degradation pool is wrapped by polyester heat preservation cotton for reducing heat loss of the degradation pool, a circulating water pipeline for controlling the temperature of a solution in the degradation pool is arranged in the degradation pool, the inlet end of a main circulating pipeline is arranged at the lower end of the degradation pool, the main circulating pipeline sequentially passes through a thermometer I, a water pump, a pressure gauge I, a flowmeter, a thermometer II, a pore plate with 1-50 through holes, a thermometer III, a pressure gauge II and a valve I, and the outlet end of the main circulating pipeline extends into the degradation pool; the starting end of the secondary line is arranged on a pipeline between the water pump and the pressure gauge I, the terminating end of the secondary line is arranged on a pipeline between the valve I and the outlet end of the main circulation pipeline, and the pressure gauge III, the thermometer IV and the valve II are arranged on the secondary line; the thermal storage tank is communicated with the degradation tank through a valve III.
Further, in the above method, the orifice plate is provided with 3-15 through holes.
Further, in the above method, the through hole is a cylindrical hole.
Further, in the method, the through hole is a regular cone hole with a cone angle of 10-60 degrees, and the diameter of the orifice at the water inlet end of the orifice plate is larger than that at the water outlet end of the orifice plate.
Further, in the method, the through hole is a negative conical hole with a cone angle of 10-60 degrees, and the diameter of the orifice at the water inlet end of the pore plate is smaller than that of the orifice at the water outlet end.
Further, in the above method, the taper angle of the through hole is 45 °.
Further, the method adjusts the initial concentration of the wastewater containing the alkaline light yellow O to be 5.0-15 mg/L.
Further, in the method, polyester heat-insulating cotton is sleeved on the main circulation pipeline and the pipeline of the secondary line.
The invention has the beneficial effects that:
the invention creatively provides a method for degrading alkaline light yellow O in wastewater and simultaneously storing and utilizing a high-temperature water source by using a pore plate hydrodynamic cavitation degradation heat-generating system, wherein the pore plate hydrodynamic cavitation degradation heat-generating system can generate the following cavitation process through a pore plate: when the solution flows through the pore plate, the smaller cross section of the through hole in the pore plate generates a large throttling effect on the water flow, so that the water flow speed is suddenly increased, the transverse pressure is reduced, when the pressure at the cross section of the compressed flow is reduced to the critical pressure of the liquid (the local pressure is lower than the saturated vapor pressure of the solution at the operating temperature), a non-soluble gas core is formed in the solution in the contraction area, a large number of cavitation bubbles are formed along with the reduction of the pressure, and the cavitation bubbles are collapsed along with the expansion of jet flow and the gradual recovery of the pressure in the pipeline. At the moment of cavitation collapse, chemical effects such as high temperature, high pressure, cavitation luminescence and the like can be generated, and water molecules generate strong oxidizing hydroxyl radicals and strong reducing hydrogen radicals. The resulting large amount of hydroxyl radicals then diffuse into the liquid medium to enable oxidation of the cationic dye molecules present in the water. The generated hydrogen radicals are combined with dissolved oxygen in water to generate superoxide radicals, and the cationic dye can be effectively removed. In addition, strong shock waves and high-speed jet flows can be formed, and the formed physical effect enables the cationic dye to break and degrade in a liquid environment under high intensity.
The invention utilizes the orifice plate hydrodynamic cavitation degradation heat production system, degrades the wastewater in the degradation tank through the hydrodynamic cavitation process, simultaneously heats the wastewater in the degradation tank, can store and utilize the part of heat source, greatly saves resources, has low operation cost, high efficiency, thoroughness, simple operation and no byproduct generation, can treat the cationic dye wastewater on a large scale, can effectively reduce the concentration of the cationic dye in the wastewater, and simultaneously can reasonably store and utilize a large amount of waste heat generated in the degradation process.
Drawings
FIG. 1 is a schematic structural diagram of a pore plate hydrodynamic cavitation degradation heat production system.
FIG. 2a is a schematic diagram of a structure of a hole plate with a cylindrical through hole.
Fig. 2b is a schematic diagram of a structure that the through hole on the orifice plate is a regular conical hole.
Fig. 2c is a schematic diagram of a structure in which the through hole on the orifice plate is a negative tapered hole.
FIG. 3 is a graph showing the effect of degradation of basic bright yellow O at various temperatures.
FIG. 4 is a graph showing the effect of degradation and heat generation on basic bright yellow O at different via angles.
FIG. 5 is a graph showing the effect of different numbers of through holes on the degradation of basic bright yellow O and the simultaneous generation of heat.
FIG. 6 is a graph showing the effect of degradation of basic bright yellow O with simultaneous heat generation under different inlet pressure conditions.
FIG. 7 is a graph showing the effect of different initial concentrations on the degradation of basic bright yellow O while generating heat.
FIG. 8 is a graph showing the effect of different radical scavengers on the degradation of basic bright yellow O.
Wherein, 1-polyester heat preservation cotton; 2-a degradation tank; 3-valve III; 4-subline; 5-a main circulation pipeline; 6, a water pump; 7-thermometer I; 8-thermometer IV; 9-thermometer II, 10-thermometer III; 11-pressure gauge III; 12-pressure gauge I; 13-pressure gauge II; 14-a flow meter; 15-well plate; 16-valve II; 17-a thermal storage tank; 18-a circulating water line; 19-hot water outlet; 20-valve I.
Detailed Description
Example 1
As shown in figure 1, a pore plate hydrodynamic cavitation degradation heat production system comprises a degradation pool (2), a main circulation pipeline (5), a secondary line (4) and a heat storage tank (17).
Polyester heat-insulating cotton (1) for reducing heat loss in the degradation tank (2) is wrapped outside the degradation tank (2), a circulating water pipeline (18) is arranged in the degradation tank (2), and the temperature of a solution in the degradation tank (2) can be controlled. If necessary, cooling circulating water can be introduced through a circulating water pipeline (18) to exchange heat with the solution in the degradation tank so as to control the temperature of the solution in the degradation tank.
The inlet end (5-1) of the main circulating pipeline (5) is arranged at the lower end of the degradation tank (2), the main circulating pipeline (5) sequentially passes through a thermometer I (7), a water pump (6), a pressure gauge I (12), a flowmeter (14), a thermometer II (9), a pore plate (15) with a through hole (15-1), a thermometer III (10), a pressure gauge II (13) and a valve II (20), and the outlet end (5-2) of the main circulating pipeline (5) extends into the degradation tank (2). And the wastewater containing the alkaline light yellow O is circularly degraded between the main circulating pipeline and the degradation tank.
The pore plate (15) is arranged on the main circulating pipeline (5) through a flange.
The thickness of the pore plate is 2.0-6.0 mm.
The pore plate (15) is provided with 1-50 through holes (15-1). Preferably, the pore plate (15) is provided with 3-15 through holes (15-1).
As shown in FIG. 2a, the through hole (15-1) of the orifice plate (15) is a cylindrical hole. Each through hole has a radius of 1.0-2.0mm and an area of 3.0-14mm2The through holes are radially arranged.
As shown in fig. 2b, the through hole (15-1) on the orifice plate (15) is a regular cone-shaped hole with a cone angle of 10-60 degrees, and the diameter of the orifice at the water inlet end of the orifice plate (15) is larger than that of the orifice at the water outlet end. Preferably, the taper angle is 45 °. The radius of the orifice at the water outlet end is 1.0-2.0mm, and the area is 3.0-14mm2The through holes are radially arranged.
As shown in fig. 2c, the through hole (15-1) on the pore plate (15) is a negative taper hole with a taper angle of 10-60 degrees, and the diameter of the orifice at the water inlet end of the pore plate (15) is smaller than that of the orifice at the water outlet end. Preferably, the taper angle is 45 °. The radius of the orifice at the water inlet end is 1.0-2.0mm, and the area is 3.0-14mm2The through holes are radially arranged.
The starting end of the secondary line (4) is arranged on a pipeline between the water pump (6) and the pressure gauge I (12), and the ending end of the secondary line (4) is arranged on a pipeline between the valve I (20) and the outlet end (5-2) of the main circulation pipeline (5). The secondary line (4) is provided with a pressure gauge III (11), a thermometer IV (8) and a valve II (16). The secondary line (4) mainly has the function of adjusting the pressure at the water inlet end of the orifice plate (15) through a control valve II (16).
The thermal storage tank (17) is communicated with the degradation tank (2) through a valve III (3), and a hot water outlet (19) is arranged on the thermal storage tank (17). Through the disinfection of degrading of orifice plate hydrodynamic cavitation degradation heat production system with the cationic dye in the waste water, the solution in the degradation pond rises in temperature under the hydrodynamic cavitation effect simultaneously, and after the disinfection of degradation was accomplished, open valve III (3) and derive the waste water that has certain high temperature in the degradation pond to hot storage tank 17 in the storage, then utilize, reach the energy saving effect greatly.
The wastewater containing the basic light yellow O in the degradation pool (2) circulates in a main circulating pipeline (5) through a water pump (6) and initiates a rapid chain reaction with organic pollutants by using active free radicals such as high temperature and high pressure, hydroxyl free radicals and the like generated by hydrodynamic cavitation effect to decompose organic molecules in the wastewater into CO2、H2O and inorganic oxide, thereby degrading the cationic dye in the wastewater, and simultaneously transferring a water source with certain high temperature after degradation to a hot storage tank (17) for recycling hot water energy.
Example 2
Method for simultaneously producing heat by degrading alkaline light yellow O in wastewater through pore plate hydrodynamic cavitation
The system for generating heat by using the orifice plate hydrodynamic cavitation degradation of example 1 comprises the following steps:
adding wastewater containing alkaline light yellow O into a degradation tank (2), adjusting the initial concentration of the wastewater containing the alkaline light yellow O to be 5.0-15 mg/L, setting the number of through holes (15-1) on a pore plate (15) to be 3-15, enabling the wastewater containing the alkaline light yellow O to enter a main circulation pipeline (5) through an inlet end (5-1) of the main circulation pipeline (5) by a water pump (6), enabling the wastewater containing the alkaline light yellow O to flow through the pore plate (15) arranged on the main circulation pipeline (5), then flowing back to the degradation tank (2) through an outlet end (5-2) of the main circulation pipeline (5) along the pipeline, controlling the pressure at a water inlet end of the pore plate (15) to be 1.0-5.0 bar through a valve II (16) on a secondary line, and controlling the cyclic degradation time to be 90 min. And opening a valve III (3), and introducing the high-temperature degraded wastewater in the degradation tank (2) into a hot storage tank (17) for storage and utilization.
And (3) measuring the concentration of the basic light yellow O in the solution by using a UV-Vis spectrophotometer, wherein the UV-Vis spectrophotometer has a maximum absorption peak near 432nm and belongs to pi-pi electron transition of double bonds, conjugated double bonds or benzene rings when the UV-Vis spectrophotometer is used for measuring the K-300-550 nm wavelength. And (3) solving the linear relation between the concentration and the absorbance by measuring a standard curve of the concentration and the absorbance.
Degradationratio(％)＝[C0-Ct]/C0×100
Wherein C is0Is the initial concentration of the basic light yellow O solution, CtIs the instantaneous concentration after a certain time (T) of hydrodynamic cavitation.
(I) influence on degradation of basic bright yellow O by hydrodynamic cavitation at different temperatures
In the orifice plate hydrodynamic cavitation degradation heat production system, the thickness of the orifice plate (15) is 4.0mm, the number of the through holes (15-1) is 3, and the through holes are cylindrical holes. Each through hole has a radius of 1.0-2.0mm and an area of 3.0-14mm2And 3 through holes are radially arranged.
The method comprises the following steps: adding wastewater containing the alkaline light yellow O into the degradation pool (2), and adjusting the initial concentration of the alkaline light yellow O in the wastewater to be 10mg/L and the pH value to be 7.0. The wastewater containing the alkaline light yellow O enters the main circulating pipeline (5) through the inlet end (5-1) of the main circulating pipeline (5) by a water pump (6), flows through a pore plate (15) arranged on the main circulating pipeline (5) along the pipeline after flowing through the pore plate (15), flows back to the degradation tank (2) through the outlet end (5-2) of the main circulating pipeline (5), controls the pressure at the water inlet end of the pore plate (15) to be 3.0bar by a valve II (16) on a secondary line, and respectively leads in cooling circulating water through a circulating water pipeline (18) to control the temperature in the degradation tank (2) to be 30 ℃, 45 ℃ and 60 ℃, and is degraded circularly for 90 min.
The degradation effect of the orifice plates at different temperatures on basic bright yellow O is shown in fig. 3. As can be seen from FIG. 3, with the extension of the cycle time, the degradation efficiency of the orifice plate under various temperature conditions is improved, and the efficiency of degrading the alkaline light yellow O wastewater by the orifice plate at 60 ℃ is the highest and can reach 60.94%.
(II) influence on simultaneous heat production of hydraulic cavitation degradation of basic bright yellow O under different through hole angles
In the orifice plate hydraulic cavitation degradation heat production system, the thickness of the orifice plate (15) is 4.0mm, and the number of the through holes (15-1) is 3. The first hole plate is a cylindrical hole as shown in fig. 2 a. As shown in fig. 2b, the second orifice plate is adopted, the through hole (15-1) on the orifice plate (15) is a regular cone-shaped hole (marked as +45 °) with a cone angle of 45 °, and the diameter of the orifice at the water inlet end of the orifice plate (15) is larger than that of the orifice at the water outlet end. As shown in figure 2c, the through hole (15-1) on the pore plate (15) is a negative conical hole (marked as-45 degrees) with a cone angle of 45 degrees, and the diameter of the hole at the water inlet end of the pore plate (15) is smaller than that of the hole at the water outlet end.
The method comprises the following steps: adding wastewater containing the alkaline light yellow O into the degradation pool (2), and adjusting the initial concentration of the alkaline light yellow O in the wastewater to be 10mg/L and the pH value to be 7.0. The wastewater containing the alkaline light yellow O enters the main circulating pipeline (5) through the inlet end (5-1) of the main circulating pipeline (5) by a water pump (6), the wastewater containing the alkaline light yellow O flows through pore plates (15) with different through hole angles respectively, then flows back to the degradation tank (2) along the pipeline through the outlet end (5-2) end of the main circulating pipeline (5), the pressure at the inlet end of the pore plate (15) is controlled to be 3.0bar by a valve II (16) on a subline, the cyclic degradation is started at the room temperature as the initial temperature, and the cyclic degradation is carried out for 90 min. Due to the hydrodynamic cavitation of the orifice plate (15), the temperature of the wastewater is continuously raised in the circulating process, and in order to ensure the safety of the test equipment, the temperature of the solution in the degradation tank (2) is controlled not to exceed 60 ℃ by introducing circulating cooling water through a circulating water pipeline (18) in the test.
The degradation and heat generation effects of the orifice plates at different through hole angles on the basic bright yellow O are shown in FIG. 4. As can be seen from FIG. 4, with the extension of the cycle time, the degradation efficiency of the pore plate under different opening angles is improved, and the degradation efficiency of the alkaline light yellow O wastewater by the pore plate under the opening angle of-45 degrees is the highest and can reach 71.58%. Meanwhile, according to the temperature rising trend, the temperature rising rate of the hole opening of the pore plate at +45 degrees is higher than that of other pore plates, the thermal efficiency can reach 77.94 percent at most, and 10L of water can be heated to 50 ℃ within 30 minutes. Because the working temperature of the laboratory orifice plate hydrodynamic cavitation degradation heat production system is limited in a certain range, in order to ensure the safety of test equipment, in the test, circulating cooling water is introduced through a circulating water pipeline (18) to control the temperature of the solution in the degradation pool (2) not to exceed 60 ℃. In practical application, the upper temperature rise limit of the orifice plate hydrodynamic cavitation degradation heat production system can be selected according to different working temperatures of equipment.
(III) influence of different through hole numbers on simultaneous heat production of hydraulic cavitation degradation of basic bright yellow O
In the orifice plate hydrodynamic cavitation degradation heat production system, the thickness of the orifice plate (15) is 4.0mm, and the number of the through holes (15-1) is respectively set to be 3, 6 and 9. The through hole is a cylindrical hole. Each through hole has a radius of 1.0-2.0mm and an area of 3.0-14mm2The through holes are arranged in a radial shape.
The method comprises the following steps: adding wastewater containing the alkaline light yellow O into the degradation pool (2), and adjusting the initial concentration of the alkaline light yellow O in the wastewater to be 10mg/L and the pH value to be 7.0. The wastewater containing the alkaline light yellow O enters the main circulating pipeline (5) through the inlet end (5-1) of the main circulating pipeline (5) by a water pump (6), the wastewater containing the alkaline light yellow O flows through pore plates (15) with different numbers of through holes respectively and then flows back to the degradation tank (2) through the outlet end (5-2) of the main circulating pipeline (5) along the pipeline, the pressure at the water inlet end of the pore plate (15) is controlled to be 3.0bar by a valve II (16) on a secondary line, the cyclic degradation is started at the room temperature as the initial temperature, and the cyclic degradation is carried out for 90 min. Due to the hydrodynamic cavitation of the orifice plate (15), the temperature of the wastewater is continuously raised in the circulating process, and in order to ensure the safety of the test equipment, the temperature of the solution in the degradation tank (2) is controlled not to exceed 60 ℃ by introducing circulating cooling water through a circulating water pipeline (18) in the test.
The degradation and heat generation effects of the orifice plates with different numbers of through holes on the basic bright yellow O are shown in FIG. 5. As can be seen from FIG. 5, with the extension of the cycle time, the degradation efficiency of the pore plates with different pore numbers is improved, and the degradation efficiency of the alkaline light yellow O wastewater of the pore plates with the pore number of 6 is the highest and can reach 77.78%. Meanwhile, according to the temperature rising trend, the temperature rising rate of the pore plate with the pore number of 9 is higher than that of other pore plates, the thermal efficiency can reach 76.42 percent at most, and 10L of water can be heated to 48.9 ℃ within 30 minutes. Because the working temperature of the laboratory orifice plate hydrodynamic cavitation degradation heat production system is limited in a certain range, in order to ensure the safety of test equipment, in the test, circulating cooling water is introduced through a circulating water pipeline (18) to control the temperature of the solution in the degradation pool (2) not to exceed 60 ℃. In practical application, the upper temperature rise limit of the orifice plate hydrodynamic cavitation degradation heat production system can be selected according to different working temperatures of equipment.
(IV) influence on simultaneous heat production of hydraulic cavitation degradation of basic bright yellow O under different inlet pressure conditions
In the orifice plate hydrodynamic cavitation degradation heat production system, the thickness of the orifice plate (15) is 4.0mm, and the number of the through holes (15-1) is respectively set to be 6. The through hole is a cylindrical hole. Each through hole has a radius of 1.0-2.0mm and an area of 3.0-14mm2The through holes are arranged in a radial shape.
The method comprises the following steps: adding wastewater containing the alkaline light yellow O into the degradation pool (2), and adjusting the initial concentration of the alkaline light yellow O in the wastewater to be 10mg/L and the pH value to be 7.0. The wastewater containing the alkaline light yellow O enters the main circulating pipeline (5) through an inlet end (5-1) of the main circulating pipeline (5) by a water pump (6), flows through an orifice plate (15) and then flows back to the degradation tank (2) through an outlet end (5-2) of the main circulating pipeline (5) along the pipeline, the pressure at the inlet end of the orifice plate (15) is controlled to be 2.0bar, 3.0bar and 4.0bar respectively by a valve I (16) on a secondary line, the cyclic degradation is started at the room temperature as the initial temperature, and the cyclic degradation is carried out for 90 min. Due to the hydrodynamic cavitation of the orifice plate (15), the temperature of the wastewater is continuously raised in the circulating process, and in order to ensure the safety of the test equipment, the temperature of the solution in the degradation tank (2) is controlled not to exceed 60 ℃ by introducing circulating cooling water through a circulating water pipeline (18) in the test.
The degradation and heat generation effects of basic bright yellow O under different inlet pressure conditions are shown in FIG. 6. As can be seen from FIG. 6, with the increase of the cycle time, the degradation efficiency of the orifice plate under different pressure conditions is improved, and the degradation efficiency of the orifice plate under the pressure of 4bar is the highest and can reach 81.39%. Meanwhile, according to the temperature rising trend, the temperature rising rate of the pore plate under the pressure of 4bar is higher than that under other pressure conditions, the thermal efficiency can reach 80.77% at most, and 10L of water can be heated to 51.78 ℃ within 30 minutes. Because the working temperature of the laboratory orifice plate hydrodynamic cavitation degradation heat production system is limited in a certain range, in order to ensure the safety of test equipment, in the test, circulating cooling water is introduced through a circulating water pipeline (18) to control the temperature of the solution in the degradation pool (2) not to exceed 60 ℃. In practical application, the upper temperature rise limit of the orifice plate hydrodynamic cavitation degradation heat production system can be selected according to different working temperatures of equipment.
(V) influence on simultaneous heat production of hydraulic cavitation degradation of basic bright yellow O under different initial concentration conditions
In the orifice plate hydrodynamic cavitation degradation heat production system, the thickness of the orifice plate (15) is 4.0mm, and the number of the through holes (15-1) is respectively set to be 6. The through hole is a cylindrical hole. Each through hole has a radius of 1.0-2.0mm and an area of 3.0-14mm2The through holes are arranged in a radial shape.
The method comprises the following steps: the degradation pool (2) is added with wastewater containing the alkaline light yellow O, the initial concentration of the alkaline light yellow O in the wastewater is respectively adjusted to be 5mg/L, 10mg/L and 15mg/L, and the pH value is 7.0. The wastewater containing the alkaline light yellow O enters the main circulating pipeline (5) through the inlet end (5-1) of the main circulating pipeline (5) by a water pump (6), flows through the orifice plate (15) and then flows back to the degradation tank (2) through the outlet end (5-2) of the main circulating pipeline (5) along the pipeline, the pressure at the inlet end of the orifice plate (15) is controlled to be 4.0bar through a valve II (16) on the secondary line, the cyclic degradation is started at the room temperature as the initial temperature, and the cyclic degradation lasts for 90 min. Due to the hydrodynamic cavitation of the orifice plate (15), the temperature of the wastewater is continuously raised in the circulating process, and in order to ensure the safety of the test equipment, the temperature of the solution in the degradation tank (2) is controlled not to exceed 60 ℃ by introducing circulating cooling water through a circulating water pipeline (18) in the test.
The influence of hydrodynamic cavitation on degradation of alkaline light yellow O and heat generation under different initial concentration conditions is shown in fig. 7, and as can be seen from fig. 7, the degradation efficiency of the pore plate under different initial concentration conditions is improved along with the prolonging of the cycle time, and the efficiency of the pore plate for degrading alkaline light yellow O wastewater under the solution initial concentration of 10mg/L is the highest and can reach 81.39%. Meanwhile, according to the temperature rising trend, the temperature rising rate of the cationic dye wastewater with the initial concentration of 5.0mg/L is faster than that of tests under other initial concentrations, the thermal efficiency can reach 83.17 percent at most, and 10L of water can be heated to 53.3 ℃ within 30 minutes. Because the working temperature of the laboratory orifice plate hydrodynamic cavitation degradation heat production system is limited in a certain range, in order to ensure the safety of test equipment, in the test, circulating cooling water is introduced through a circulating water pipeline (18) to control the temperature of the solution in the degradation pool (2) not to exceed 60 ℃. In practical application, the upper temperature rise limit of the orifice plate hydrodynamic cavitation degradation heat production system can be selected according to different working temperatures of equipment.
(VI) influence of different free radical trapping agents on degradation of basic light yellow O by hydrodynamic cavitation
In the orifice plate hydrodynamic cavitation degradation heat production system, the thickness of the orifice plate (15) is 4.0mm, and the number of the through holes (15-1) is respectively set to be 6. The through hole is a cylindrical hole. Each through hole has a radius of 1.0-2.0mm and an area of 3.0-14mm2The through holes are arranged in a radial shape.
The method comprises the following steps: adding wastewater containing alkaline light yellow O into the degradation pool (2), adjusting the initial concentration of the alkaline light yellow O in the wastewater to be 10mg/L and the pH value to be 7.0, and respectively adding different free radical trapping agents (isopropanol (IPA) or p-Benzoquinone (BQ)). The wastewater containing the alkaline light yellow O enters the main circulating pipeline (5) through the inlet end (5-1) of the main circulating pipeline (5) by a water pump (6), flows through the orifice plate (15) and then flows back to the degradation tank (2) through the outlet end (5-2) of the main circulating pipeline (5) along the pipeline, the pressure at the inlet end of the orifice plate (15) is controlled to be 4.0bar through a valve II (16) on the secondary line, the cyclic degradation is started at the room temperature as the initial temperature, and the cyclic degradation lasts for 90 min. Due to the hydrodynamic cavitation of the orifice plate (15), the temperature of the wastewater is continuously raised in the circulating process, and in order to ensure the safety of the test equipment, the temperature of the solution in the degradation tank (2) is controlled not to exceed 60 ℃ by introducing circulating cooling water through a circulating water pipeline (18) in the test.
Isopropyl alcohol (IPA) and p-Benzoquinone (BQ) as. OH and. O2 -The effect of the radical scavenger of (1) on the degradation of basic brilliant yellow O was measured under the conditions of no scavenger addition and scavenger addition, and the results are shown in FIG. 8. As can be seen from FIG. 8, the degradation efficiency of basic brilliant yellow O dye was 63.36% and 51.06% under the conditions of IPA and BQ addition, indicating that. OH and. O2 -All participate in the hydrodynamic cavitation process, and2 -the effect on the degradation reaction is greater than. OH.
Claims (8)
1. A method for simultaneously generating heat by degrading basic light yellow O in wastewater through orifice plate hydrodynamic cavitation is characterized in that a system for generating heat by degrading and generating heat through orifice plate hydrodynamic cavitation comprises the following steps: adding wastewater containing alkaline light yellow O into a degradation tank (2), enabling the wastewater containing the alkaline light yellow O to enter a main circulation pipeline (5) through an inlet end (5-1) of the main circulation pipeline (5) by a water pump (6), enabling the wastewater to flow through a pore plate (15) arranged on the main circulation pipeline (5), enabling the wastewater to flow back to the degradation tank (2) through an outlet end (5-2) of the main circulation pipeline (5) along the pipeline after flowing through the pore plate (15), controlling the pressure at the inlet end of the pore plate (15) to be 1.0-5.0 bar through a valve II (16) on an auxiliary line (4), and circularly degrading for 90 min; then opening a valve III (3), and introducing the high-temperature degraded wastewater in the degradation tank (2) into a hot storage tank (17) for storage and utilization;
the orifice plate hydraulic cavitation degradation heat production system comprises a degradation pool (2), a main circulating pipeline (5), a secondary line (4) and a heat storage tank (17); the degradation pool (2) is wrapped by polyester heat-preservation cotton (1) for reducing heat loss of the degradation pool (2), a circulating water pipeline (18) for controlling the temperature of a solution in the degradation pool (2) is arranged in the degradation pool (2), an inlet end (5-1) of a main circulating pipeline (5) is arranged at the lower end of the degradation pool (2), the main circulating pipeline (5) sequentially passes through a thermometer I (7), a water pump (6), a pressure gauge I (12), a flowmeter (14), a thermometer II (9), a pore plate (15) with 1-50 through holes (15-1), a thermometer III (10), a pressure gauge II (13) and a valve I (20), and then an outlet end (5-2) of the main circulating pipeline (5) extends into the degradation pool (2); the starting end of the secondary line (4) is arranged on a pipeline between the water pump (6) and the pressure gauge I (12), the terminating end of the secondary line (4) is arranged on a pipeline between the valve I (20) and the outlet end (5-2) of the main circulating pipeline (5), and the pressure gauge III (11), the temperature gauge IV (8) and the valve II (16) are arranged on the secondary line (4); the heat storage tank (17) is communicated with the degradation tank (2) through a valve III (3).
2. The method according to claim 1, characterized in that the perforated plate (15) is provided with 3-15 through holes (15-1).
3. The method according to claim 1, wherein the through hole (15-1) is a cylindrical hole.
4. The method according to claim 1, characterized in that the through hole (15-1) is a regular cone with a cone angle of 10-60 °, and the regular cone is formed by the fact that the orifice diameter of the water inlet end of the orifice plate (15) is larger than that of the water outlet end.
5. The method according to claim 1, characterized in that the through hole (15-1) is a negative taper hole with a taper angle of 10-60 °, and the negative taper hole is formed such that the orifice diameter of the orifice plate (15) at the water inlet end is smaller than the orifice diameter of the water outlet end.
6. A method according to claim 4 or 5, characterized in that the cone angle of the through hole (15-1) is 45 °.
7. The method as claimed in claim 1, wherein the initial concentration of the wastewater containing the basic bright yellow O dye is adjusted to 5.0 to 15 mg/L.
8. The method according to claim 1, characterized in that the pipes of the main circulation pipe (5) and the secondary line (4) are covered with polyester insulating cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011604407.7A CN112794431A (en) | 2020-12-29 | 2020-12-29 | Method for simultaneously producing heat by degrading alkaline light yellow O in wastewater through pore plate hydrodynamic cavitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011604407.7A CN112794431A (en) | 2020-12-29 | 2020-12-29 | Method for simultaneously producing heat by degrading alkaline light yellow O in wastewater through pore plate hydrodynamic cavitation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112794431A true CN112794431A (en) | 2021-05-14 |
Family
ID=75804282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011604407.7A Pending CN112794431A (en) | 2020-12-29 | 2020-12-29 | Method for simultaneously producing heat by degrading alkaline light yellow O in wastewater through pore plate hydrodynamic cavitation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112794431A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114455770A (en) * | 2022-03-01 | 2022-05-10 | 辽宁大学 | Method for treating dye wastewater and generating heat by heat-assisted reinforced hydrodynamic cavitation |
| CN114735786A (en) * | 2022-05-12 | 2022-07-12 | 辽宁大学 | Method for degrading auramine O in wastewater and simultaneously generating heat by combined use of immersion type negative pressure-positive pressure hydrodynamic cavitation |
| CN114890501A (en) * | 2022-04-13 | 2022-08-12 | 辽宁大学 | Hydrodynamic cavitation device based on parallel orifice plates and application of hydrodynamic cavitation device in degradation of dye-containing wastewater |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140251904A1 (en) * | 2011-10-11 | 2014-09-11 | Council Of Scientific & Industrial Research | Vortex diodes as effluent treatment devices |
| CN109824176A (en) * | 2019-03-30 | 2019-05-31 | 山东大学 | A kind of device of Hydrodynamic cavitation combined oxidant degradation of dye waste water |
| CN109855316A (en) * | 2019-03-30 | 2019-06-07 | 山东大学 | Hydrodynamic cavitation device for hot water centralizedly supply |
| CN109855165A (en) * | 2019-03-30 | 2019-06-07 | 山东大学 | A kind of Hydrodynamic cavitation heating installation |
| CN110092462A (en) * | 2019-05-15 | 2019-08-06 | 辽宁大学 | A kind of method of Hydrodynamic cavitation catalytic degradation system and Hydrodynamic cavitation catalytic degradation waste water from dyestuff |
| CN111377502A (en) * | 2020-04-16 | 2020-07-07 | 辽宁大学 | Hydraulic cavitation system based on negative pressure orifice plate auxiliary positive pressure orifice plate and method for degrading dye wastewater |
| CN111675306A (en) * | 2020-06-23 | 2020-09-18 | 辽宁大学 | Method for degrading organophosphorus pesticide |
-
2020
- 2020-12-29 CN CN202011604407.7A patent/CN112794431A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140251904A1 (en) * | 2011-10-11 | 2014-09-11 | Council Of Scientific & Industrial Research | Vortex diodes as effluent treatment devices |
| CN109824176A (en) * | 2019-03-30 | 2019-05-31 | 山东大学 | A kind of device of Hydrodynamic cavitation combined oxidant degradation of dye waste water |
| CN109855316A (en) * | 2019-03-30 | 2019-06-07 | 山东大学 | Hydrodynamic cavitation device for hot water centralizedly supply |
| CN109855165A (en) * | 2019-03-30 | 2019-06-07 | 山东大学 | A kind of Hydrodynamic cavitation heating installation |
| CN110092462A (en) * | 2019-05-15 | 2019-08-06 | 辽宁大学 | A kind of method of Hydrodynamic cavitation catalytic degradation system and Hydrodynamic cavitation catalytic degradation waste water from dyestuff |
| CN111377502A (en) * | 2020-04-16 | 2020-07-07 | 辽宁大学 | Hydraulic cavitation system based on negative pressure orifice plate auxiliary positive pressure orifice plate and method for degrading dye wastewater |
| CN111675306A (en) * | 2020-06-23 | 2020-09-18 | 辽宁大学 | Method for degrading organophosphorus pesticide |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114455770A (en) * | 2022-03-01 | 2022-05-10 | 辽宁大学 | Method for treating dye wastewater and generating heat by heat-assisted reinforced hydrodynamic cavitation |
| CN114890501A (en) * | 2022-04-13 | 2022-08-12 | 辽宁大学 | Hydrodynamic cavitation device based on parallel orifice plates and application of hydrodynamic cavitation device in degradation of dye-containing wastewater |
| CN114735786A (en) * | 2022-05-12 | 2022-07-12 | 辽宁大学 | Method for degrading auramine O in wastewater and simultaneously generating heat by combined use of immersion type negative pressure-positive pressure hydrodynamic cavitation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112794431A (en) | Method for simultaneously producing heat by degrading alkaline light yellow O in wastewater through pore plate hydrodynamic cavitation | |
| Papić et al. | Decolourization and mineralization of commercial reactive dyes by using homogeneous and heterogeneous Fenton and UV/Fenton processes | |
| Dos Santos et al. | Review paper on current technologies for decolourisation of textile wastewaters: perspectives for anaerobic biotechnology | |
| CN102659221B (en) | Electro-catalytic oxidation material for wastewater treatment, preparation method and application | |
| US9199865B2 (en) | Method for treatment of dyeing wastewater by using UV/acetylacetone oxidation process | |
| CN102145965A (en) | Textile dyeing wastewater advanced treatment recycling technology | |
| CN106830469B (en) | Vacuum ultraviolet light catalytic reactor, wastewater treatment device and treatment method | |
| CN104190434A (en) | Preparation of Fe3O4-MnO2 composite catalyst and method for removing organic dye in printing and dyeing wastewater by using Fe3O4-MnO2 composite catalyst | |
| CN106517485A (en) | Method for treating organic wastewater by utilizing synergy of visible light and FeOCl to conduct catalyzed activation on mono-persulfate | |
| CN111377502A (en) | Hydraulic cavitation system based on negative pressure orifice plate auxiliary positive pressure orifice plate and method for degrading dye wastewater | |
| CN111348720A (en) | Orifice plate-based hydrodynamic cavitation system and method for degrading antibiotics in wastewater | |
| CN210528524U (en) | Composite field advanced oxidation reactor and system for sewage treatment | |
| CN106045152A (en) | Method for degrading rhodamine B through nanometer Fe3O4/Na2S2O8 jointly | |
| CN114455770A (en) | Method for treating dye wastewater and generating heat by heat-assisted reinforced hydrodynamic cavitation | |
| CN201530743U (en) | Reverse osmosis concentrated water disposing system with emissions conforming to emission standard | |
| Sun et al. | Study on negative pressure assisted hydrodynamic cavitation (NPA-HC) degradation of methylene blue in dye wastewater | |
| Marcus et al. | Current trends on the utilization of ozonation treatment process for the remediation of dye wastewater: a short review | |
| Akhter et al. | Recent advances in the processing of modern methods and techniques for textile effluent remediation—a review | |
| Tunc Dede et al. | Sonochemical degradation of CI reactive orange 107 | |
| CN105016526A (en) | Photocatalysis-adsorption flocculation combining technique for organic waste water difficult to degrade | |
| CN205710010U (en) | A kind of gas-liquid mixed low-temperature plasma generator and integrating device | |
| CN109626726A (en) | A kind of processing method of benzene-containing wastewater | |
| CN210656250U (en) | Composite field advanced oxidation reactor and system for sewage treatment | |
| Arora et al. | Adsorptive removal of hazardous dyes from industrial waste using activated carbon: an appraisal | |
| CN209242841U (en) | System based on micro passage reaction continuous processing organic wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210514 |