CN109019753A - A kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater - Google Patents
A kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater Download PDFInfo
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- CN109019753A CN109019753A CN201810757540.2A CN201810757540A CN109019753A CN 109019753 A CN109019753 A CN 109019753A CN 201810757540 A CN201810757540 A CN 201810757540A CN 109019753 A CN109019753 A CN 109019753A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/302—Treatment of water, waste water, or sewage by irradiation with microwaves
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a kind of methods of circulation batch type microwave catalysis oxidation processing organic wastewater.The following steps are included: 1) being stirred organic wastewater to be processed in adjusting tank, adjusting pH adds oxidant by medicine system in batches, is uniformly mixed the method for this processing organic wastewater；2) by step 1) treated organic wastewater is passed through cycle cooling plating drum circulation, microwave catalysis oxidation reaction is then carried out in microwave reaction chamber；3) it is discharged after heat-exchange system carries out heat exchange after wastewater recycle is up to standard, it is not up to standard, adjusting tank is returned to by cycle cooling plating drum and continues circular treatment.The present invention uses microwave catalysis oxidation organic wastewater with difficult degradation thereby, continuous microwave in microwave catalysis oxidation technology is realized to heat, catalyst and waste water are co-located on the highest order of microwave electromagnetic wave field in microwave reaction cavity, improve the utilization efficiency of microwave catalysis oxidation, enhance oxidability, and accelerates the fast degradation of useless Organic substance in water.
Description
Technical field
The present invention relates to a kind of methods of circulation batch type microwave catalysis oxidation processing organic wastewater.
Background technique
The development of the industries such as printing and dyeing, pharmacy, chemical industry and petroleum also creates a large amount of other than bringing huge economic benefit
The waste water of bio-refractory organic matter brings great harm to ecological environment.Such waste water have concentration height, strong toxicity,
The features such as steady chemical structure and difficult for biological degradation.Poor processing effect of traditional biochemical process to such waste water, conventional object
Reason and chemical method are difficult to degradable organic matter and processing cost is high, therefore the processing of organic wastewater with difficult degradation thereby is always state
The problem of inside and outside sewage treatment field.
Advanced oxidation processes (Advanced oxidation processes, AOPs) are developed on the basis of chemical oxidization method
The new technology of the processing BROW to get up, mechanism are to be combined by oxidant, catalyst with technologies such as electricity, light and ultrasounds, are produced
The extremely strong free radical of liveliness proof (such as OH), then by adduction between free radical and organic pollutant, substitution, electronics transfer,
The reaction such as scission of link makes macromolecular persistent organic pollutants oxidative degradation in water body at low toxicity or nontoxic small-molecule substance,
Even directly mineralising is CO2And H2The technical process of O.AOPs mainly has chemical catalytic oxidation method, Electrocatalytic Oxidation, photochemistry
Oxidizing process, ultrasonic oxidation method and wet oxidation process etc., common feature are that oxidability is strong, oxidation selectivity is small, reaction speed
The advantages that fast and reaction is thorough has preferable degradation effect to persistent organic pollutants.
Microwave is a kind of electromagnetic wave, in electromagnetic spectrum between infrared between radio wave, frequency is about in 300MHz
Between~300GHz, wave-length coverage is 1mm~1m.Conventional heating is transmitted thermal energy by three conduction, convection current or radiation mechanism
To material.And microwave heating is different from conventional heating, there are two types of mechanism, i.e. ionic conduction and idol for heating of the medium in microwave field
Extremely son rotation.Ionic conduction is that the conduction of dissociable ion in electromagnetic field is mobile, and medium generates heat to the obstruction of moving iron
Effect.Dipole rotation is that dipole with the change in extra electric field direction makees regular swing, due to the warm-up movement and phase of molecule
The interaction of adjacent molecule makes the dipole swung be interfered and hinder, and generates the effect of similar friction, makes disorderly and unsystematic fortune
Dynamic molecule obtains energy, shows in the form of heat, the temperature of medium also increases.The characteristics of microwave heating have with
Lower feature: 1. heating speed is fast；2. homogeneous heating；3. energy-efficient；4. easily controllable；5. pollution-free；6. selectivity heating.
The energy of a quantum of microwave is about 10-6~10-3EV, than chemical bond energy 10 in compound0~101EV is much smaller,
Therefore for quantum effect angle, it is insufficient to allow chemical bond rupture, but certain chemical bond oscillations or rotation in compound can be made,
Lead to the decrease of these chemical bonds, to reduce the activation energy of reaction, promotes the decomposition of compound.Many organic compounds cannot
Directly significantly absorb microwave, but can using certain strong " sensitizer " for absorbing microwave by microwave energy delivery to these substances and
Induced chemical reaction.These " sensitizers " are mostly the very strong substances of some absorption microwave abilities, such as ferromagnetic metal and its change
Object, active carbon etc. are closed, due to the presence of " sensitizer " surface weak bond and defective bit, can be occurred altogether on its surface when microwave irradiation
Vibration lotus root, which is closed, to be passed energy and forms high temperature " hot spot " (temperature may be up to 1400 DEG C), and the other positions of the energy ratio of these " hot spots " are high to be obtained
It is more, it can be chemically reacted when reactant molecule is contacted with these " hot spots ", reduce the reaction activity of system.
Processing organic wastewater with difficult degradation thereby generallys use bioanalysis, chemical catalytic oxidation method, electrochemical oxidation process, wet oxidation
Method associated with the processing methods such as method valve or kinds of processes.Bioanalysis has many advantages, such as that processing cost is low, high-efficient, but raw
It is lower and without the avirulent waste water of life that object method is only suitable for organic pollutant concentration, and technique takes up a large area, for difficult biology
The organic wastewater of degradation, Biochemical method low efficiency.Chemical catalytic oxidation method mainly includes Fenton method, Fenton-like method and smelly
Oxygen oxidizing process etc., process characteristic are that oxidability is strong, reaction rate is fast, but its oxidant utilization efficiency is low, and processing cost is high.
Electrochemical oxidation process oxidability is strong, reaction condition is mild, does not easily cause secondary pollution, but since electrochemical oxidation process degradation has
The problems such as current efficiency is lower during machine object, power consumption is high causes to receive limitation in practical applications.Wet oxidation process can have
Degradation of organic substances waste water is imitated, is had a wide range of application, but the technical treatment is at high cost, processing capacity is small, operating condition and equipment requirement
It is harsh.
The current prior art haves the shortcomings that following:
(1) reaction vessel: in the equipment of existing microwave catalysis oxidation processing organic wastewater, the intracorporal reaction vessel of microwave cavity
Substantially cylindrical body and two kinds of coil pipe.By microwave radiation around the reaction vessel of cylinder type, but infiltration of the microwave in sewage
Saturating depth is generally 1.3~4.68cm (25~95 DEG C), and therefore, microwave radiation effective coverage is only close to container perimeter, microwave
The catalysis oxidation efficiency is low.And the volume of excessive cylindrical body reaction vessel, there is secondary make to organic matter microwave catalysis oxidation efficiency
With.Show that such as equivalent reactant be respectively 35s and 180s in the reaction time of 50mL and 300mL reaction vessel according to test result,
Reaction speed differs 5.14 times.In order to avoid cylindrical container reduces the influence of the efficiency of microwave radiation, existing case is in microwave
Inside cavity takes the reaction vessel of coil pipe, and organic wastewater passes through microwave cavity, since the radius of coil pipe is small, microwave using coil pipe
It can be radiated the center of waste water in coil pipe, realize that useless Organic substance in water can be by the radiation of microwave.But due to having for waste water
Machine pollutant cannot directly absorb microwave energy, and microwave catalysis effect is unable to reach most preferably, and oxidation efficiency is lower.
(2) microwave designing: since the Microwave Power Density of traditional microwave equipment is lower, microwave field density is too low to be unable to satisfy just
The requirement of catalytic oxidation；Traditional microwave equipment uses intermittent heating, and starting energy consumption is big, and microwave field dispersion leads to microwave energy
Amount cannot focus in the active point of catalyst, and microwave utilization efficiency is not high；The cooling effect of air cooling way is poor, magnetron
Working efficiency and service life are low；Microwave catalysis oxidation reacts in the main intracorporal container of concentrating microwaves chamber, and waste water dosing, stirs
The processes such as mix, recycle all outside microwave cavity, being easy to cause oxidant, catalyst to mix with organic matter uneven reduces oxidation
Efficiency.
Summary of the invention
The present invention in order to overcome in microwave catalysis oxidation technology microwave heating is discontinuous, energy consumption is high for starting, catalyst and by
The fluid of processing is not at the highest order of pico- wave electromagnetic wave field, the problem of using microwave energy low efficiency, and then provides one kind and follows
The method of ring batch-type microwave catalysis oxidation processing organic wastewater.
The technical solution used in the present invention is:
A kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater, comprising the following steps:
1) organic wastewater to be processed is stirred in adjusting tank, adjusts pH, oxygen is added by medicine system in batches
Agent is uniformly mixed；
2) it by step 1) treated organic wastewater is passed through cycle cooling plating drum circulation, is then carried out in microwave reaction chamber
Microwave catalysis oxidation reaction；
3) it is discharged after heat-exchange system carries out heat exchange after wastewater recycle is up to standard, it is not up to standard, pass through cycle cooling plating drum
It returns to adjusting tank and continues circular treatment.
In step 1), the range for adjusting pH is 3.0~6.0.
In step 1), oxidant is at least one of hydrogen peroxide, sodium peroxydisulfate.
In step 2), the time that waste water recycles in cycle cooling plating drum is 2min~5min.
In step 2), cycle cooling plating drum is made of water inlet pipe, tubulation and outlet pipe, and tubulation setting is intracavitary in microwave reaction
Portion, water inlet pipe connection adjust tank lower end and tubulation lower end, and outlet pipe connection adjusts tank upper end and tubulation upper end；Outside microwave reaction chamber
Metal shell is wrapped up in portion, and inside is equipped with microwave generator, magnetron, transformer and tubulation；Microwave reaction chamber and cooling device phase
Connection.
4 mesh~20 mesh catalyst is filled in tubulation, catalyst is at least one of active carbon, iron carbon, zeolite.
In microwave reaction chamber, magnetron is set in the position of tubulation catalyst filling, makes the highest order of microwave electromagnetic wave field
On tubulation fluid and catalyst.
In step 2), the temperature of microwave catalysis oxidation reaction is 70 DEG C~90 DEG C, and the time of reaction is 40min~70min.
In step 3), heat-exchange system includes heat exchange equipment, and heat exchange equipment is respectively equipped with hot side water inlet, hot side draining
Mouth, cold side water inlet and cold side discharge outlet.
Adjust tank, medicine system, cycle cooling plating drum, microwave reaction chamber, cooling device, heat-exchange system respectively and automatically
Control system is connected.
The beneficial effects of the present invention are:
The present invention handles organic wastewater with difficult degradation thereby using microwave catalysis oxidation method, realizes in microwave catalysis oxidation technology
Continuous microwave heats, and catalyst and waste water are co-located on the highest order of microwave electromagnetic wave field in microwave reaction cavity, improves micro-
The utilization efficiency of wave catalysis oxidation enhances oxidability, and accelerates the fast degradation of useless Organic substance in water.
Processing method of the invention greatly improves the utilization efficiency of microwave and the degradation of organic matter, can reduce energy
Consumption shortens the processing time, can continuous operation, it is easy to operate, can be realized the processing of continuous scale, be suitable for landfill leachate and
The processing of high concentration hard-degraded organic waste water.
The present invention designs one kind using modular modes such as cycle cooling plating drum, automatic control system, heat-exchange systems and follows
Ring batch-type microwave catalysis oxidation integration apparatus carries out wastewater treatment, passes through catalysis fixed in tubulation in cycle cooling plating drum
Agent and the design of microwave magnetron position guarantee that waste water and catalyst are in the highest order of microwave electromagnetic wave field, so that microwave
It focuses in catalyst activity point, to improve microwave utilization efficiency；Pass through automatic automatic control system, microwave output power
It can realize according to waste water reaction temperature auto-control and carry out microwave catalysis oxidation reaction under steady temperature (70~90 DEG C), avoid
The problem of service life caused by the intermittent starting of magnetron is short and energy consumption is high；Heat-exchange system improves the water inlet temperature of processing waste water
Degree reduces energy consumption, shortens the processing time.Using the microwave equipment and catalyst combination at microwave catalysis oxidation technology, utilize
Catalyst forms " hot spot " to microwave absorption utility, in catalyst surface active point, and moment improves reaction temperature and drop
The activation energy of low chemical reaction, while in oxidant (H2O2) and the hydroxyl free that is generated under the action of microwave radiation of catalyst
Base and organic matter carry out oxidation reaction, to realize that microwave plays the fuel factor of microwave and non-in heterogeneous advanced oxidation system
Fuel factor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of processing equipment of the present invention；
Fig. 2 is the top view of tubulation setting in microwave reaction cavity and cavity；
Fig. 3 is the side view of tubulation setting in microwave reaction cavity and cavity.
Specific embodiment
A kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater, comprising the following steps:
1) organic wastewater to be processed is stirred in adjusting tank, adjusts pH, oxygen is added by medicine system in batches
Agent is uniformly mixed；
2) it by step 1) treated organic wastewater is passed through cycle cooling plating drum circulation, is then carried out in microwave reaction chamber
Microwave catalysis oxidation reaction；
3) it is discharged after heat-exchange system carries out heat exchange after wastewater recycle is up to standard, it is not up to standard, pass through cycle cooling plating drum
It returns to adjusting tank and continues circular treatment.
Preferably, in step 1), the range for adjusting pH is 3.0~6.0.Adjust the routine that medicament used in pH is this field
Raw material, such as sulfuric acid, sodium hydroxide, sodium carbonate, limewash.
Preferably, in step 1), oxidant is at least one of hydrogen peroxide, sodium peroxydisulfate；The dosage of oxidant
Depending on the COD of waste water, preferred amount ratio is oxidant: COD=(1.5~3.0): 1.
Further, it adjusts tank and connects microwave reaction chamber, adjust tank and be equipped with water inlet, liquidometer, agitating paddle, stirring electricity
Machine, thermometer, wherein liquidometer and thermometer have the function of signal feedback.
Further, medicine system is made of metering pump, Calibration Column, liquidometer, pH meter, air pressure pump and hose system, is led to
It crosses hose system and is connect with tank upper end is adjusted.
Preferably, in step 2), the time that waste water recycles in cycle cooling plating drum is 2min~5min.
Further, in step 2), cycle cooling plating drum is made of water inlet pipe, tubulation and outlet pipe, and tubulation is arranged micro-
Inside wave reaction chamber, water inlet pipe connection adjusts tank lower end and tubulation lower end, and outlet pipe connection adjusts tank upper end and tubulation upper end；It is micro-
Metal shell is wrapped up outside wave reaction chamber, inside is equipped with microwave generator, magnetron, transformer and tubulation；Microwave reaction chamber and
Cooling device is connected.Between water inlet pipe and tubulation, circulating pump, flowmeter, electronic is equipped with outside the microwave reaction chamber at water inlet
Valve and thermometer；Between outlet pipe and tubulation, thermometer is equipped at microwave reaction containment portion water outlet.
Cooling device is cooled down by the way of water cooling.
Further, fill 4 mesh~20 mesh catalyst in tubulation, catalyst be active carbon, iron carbon, in zeolite at least
It is a kind of.
Further, in microwave reaction chamber, magnetron is set in the position of tubulation catalyst filling, makes microwave electromagnetic wave field
Highest order on tubulation fluid and catalyst.Catalyst can be guaranteed in microwave electromagnetic wave field with fixed catalyst in tubulation
Highest order.
Further, cycle cooling plating drum is electromagnetic wave transparent material, electromagnetic wave transparent material in the intracorporal pipeline material of microwave reaction chamber
For at least one of polytetrafluoroethylene (PTFE), quartz, ceramics.
Preferably, the diameter of water inlet pipe and outlet pipe is 80mm~150mm, and the diameter of tubulation is 60mm~100mm.
Preferably, in step 2), the temperature of microwave catalysis oxidation reaction is 70 DEG C~90 DEG C, and the time of reaction is 40min
~70min.
Further, in step 3), heat-exchange system includes heat exchange equipment, heat exchange equipment be respectively equipped with hot side water inlet,
Hot side discharge outlet, cold side water inlet and cold side discharge outlet.
Heat-exchange system can be improved the temperature that waste water enters microwave reaction cavity, energy saving.
Further, tank, medicine system, cycle cooling plating drum, microwave reaction chamber, cooling device, heat-exchange system are adjusted
It is connected respectively with automatic control system.
Further, automatic control system includes alternating interface between man and computer, control cabinet, thermometer, metering pump and motor-driven valve,
Alternating interface between man and computer respectively with adjust tank, medicine system, cycle cooling plating drum, microwave reaction chamber, cooling device, heat-exchange system
It is connected.
By the preset reaction temperature of automatic control system, microwave output power and circulation time, followed by thermometer measurement
The temperature of ring pipe-line system water inlet pipe and outlet pipe.
It adjusts tank to be controlled by automatic control system, has the function of continuous Automatic Dosing and mixing, guarantee circular response mistake
The concentration of oxidant maintains the state of dynamic equilibrium in waste water in journey, and the mass concentration range of oxidant is 1%~5%.
Examination criteria described in step 3) is just like national standard GB 8978-1996 " integrated wastewater discharge standard ", terrestrial reference
The standards such as DB4426-2001 " Water in Guangdong Province pollutant emission limit ", the index predominantly detected have COD, BOD, coloration, total nitrogen,
Ammonia nitrogen, total phosphorus etc. will detect waste discharge with discharge standard according to the characteristics of processing sewage.
The contents of the present invention are described in further detail below by way of specific embodiment.
A kind of integration apparatus of circulation batch type microwave catalysis oxidation processing organic wastewater is shown in attached drawing 1.From fig. 1, it can be seen that
The processing equipment mainly includes adjusting tank, heat-exchange system, microwave reaction chamber, cycle cooling plating drum, cooling device, dosing system
System, automatic control system.Cycle cooling plating drum is made of water inlet pipe, tubulation and outlet pipe, and tubulation designs inside reaction cavity,
Catalyst is fixed in tubulation.Cycle cooling plating drum adjusts tank and tubulation by water inlet pipe and outlet pipe connection, forms opposite envelope
The interior circulation closed.Attached drawing 2 and attached drawing 3 are respectively the top view and side view of tubulation setting in microwave reaction cavity and cavity.
Waste water realizes circulation under the action of circulating pump, by adjusting tank → tubulation → adjusting tank, and water (flow) direction is under tubulation
End is up recycled.After circulation starts, start microwave generator, the catalyst and waste water in microwave cavity inner body tubulation are by micro-
Wave radiation, waste water are rapidly heated.Automatic control system controls microwave by the waste water temperature of the thermometer feedback designed on pipeline
The watt level of output, realize waste water setting at a temperature of carry out microwave reaction.When reaching the setting reaction time, system passes through
The switch of motor-driven valve is controlled, waste water enters heat-exchange system by discharge tube, heat is exchanged to the waste water of next batch, improves
Waste water temperature to be processed reduces energy consumption.
Processing equipment of the invention presets reaction temperature by control system, measures reaction temperature by thermometer and feeds back
To alternating interface between man and computer, microwave output power size is controlled by the temperature of feedback.Such as according to different temperatures, microwave power is controlled
What is exported is small.Microwave power Maximum Power Output 40kW, control output control range is the 10%~100% of maximum power.
In the embodiment of concrete application, the tubulation of microwave reaction inside cavity uses polytetrafluoroethylene material, straight in tubulation
Diameter is 80mm, and tubulation interior design can cross fixed catalyst, microwave reaction cavity and its external pipe and other accessories are adopted
With 304 stainless steel materials.
Embodiment 1:
Landfill leachate is handled using circulation batch type microwave catalysis oxidation integration apparatus, the method is as follows:
(1) magnetic active carbon catalyst (10 mesh) is fixed in each tubulation of microwave；
(2) agitating paddle that starting is adjusted in tank is stirred, and adjusts the pH value of landfill leachate to be processed to 6.0；
(3) pump startup is recycled, percolate passes through tubulation from bottom to top, forms circulation with tank is adjusted, starting medicine system is simultaneously
Add oxidant (H2O2), oxidant dosing method is realized by automatic control system, as continuously added, batch-type adds, and
It is controllable to add flow；
(4) microwave reaction temperature is set as 90 DEG C, and the isothermal reaction time is 40 minutes (being free of the heating-up time), is opened automatic
Operating system；
(5) circulation landfill leachate is sufficiently mixed in adjusting tank with oxidant, and mixed liquor is by tubulation, in microwave reaction
It is contacted in cavity with catalyst, microwave catalysis oxidation reaction occurs；
(6) landfill leachate after microwave catalysis oxidation is discharged by heat-exchange system, measurement discharge water body CODCrBy
4843mg/L drops to 469mg/L, removal rate 90.3% before managing.
Embodiment 2:
Landfill leachate is handled using circulation batch type microwave catalysis oxidation integration apparatus, the method is as follows:
(1) magnetic active carbon catalyst (20 mesh) is fixed in each tubulation of microwave；
(2) agitating paddle that starting is adjusted in tank is stirred, and adjusts the pH value of landfill leachate to be processed to 5.0；
(3) pump startup is recycled, percolate passes through tubulation from bottom to top, forms circulation with tank is adjusted, starting medicine system is simultaneously
Add oxidant (H2O2), oxidant dosing method is realized by automatic control system, as continuously added, batch-type adds, and
It is controllable to add flow；
(4) microwave reaction temperature is set as 80 DEG C, and the isothermal reaction time is 60 minutes (being free of the heating-up time), is opened automatic
Operating system；
(5) circulation landfill leachate is sufficiently mixed in adjusting tank with oxidant, and mixed liquor is by tubulation, in microwave reaction
It is contacted in cavity with catalyst, microwave catalysis oxidation reaction occurs；
(6) landfill leachate after microwave catalysis oxidation is discharged by heat-exchange system, measurement discharge water body, CODCrBy
5139mg/L drops to 301mg/L, removal rate 94.1% before managing.
Embodiment 3:
Landfill leachate is handled using circulation batch type microwave catalysis oxidation integration apparatus, the method is as follows:
(1) magnetic active carbon catalyst (20 mesh) is fixed in each tubulation of microwave；
(2) agitating paddle that starting is adjusted in tank is stirred, and adjusts the pH value of landfill leachate to be processed to 4.0；
(3) pump startup is recycled, percolate passes through tubulation from bottom to top, forms circulation with tank is adjusted, starting medicine system is simultaneously
Add oxidant (H2O2), oxidant dosing method is realized by automatic control system, as continuously added, batch-type adds, and
It is controllable to add flow；
(4) microwave reaction temperature is set as 80 DEG C, and the isothermal reaction time is 20 minutes (being free of the heating-up time), is opened automatic
Operating system；
(5) circulation landfill leachate is sufficiently mixed in adjusting tank with oxidant, and mixed liquor is by tubulation, in microwave reaction
It is contacted in cavity with catalyst, microwave catalysis oxidation reaction occurs；
(6) landfill leachate after microwave catalysis oxidation is discharged by heat-exchange system, measurement discharge water body, CODCrBy
3318mg/L drops to 122mg/L, removal rate 96.3% before managing.
Claims (10)
1. a kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater, it is characterised in that: the following steps are included:
1) organic wastewater to be processed is stirred in adjusting tank, adjusts pH, oxidant is added by medicine system in batches,
It is uniformly mixed；
2) by step 1) treated organic wastewater is passed through cycle cooling plating drum circulation, microwave is then carried out in microwave reaction chamber
Catalytic oxidation；
3) it is discharged after heat-exchange system carries out heat exchange after wastewater recycle is up to standard, it is not up to standard then to be returned by cycle cooling plating drum
It adjusts tank and continues circular treatment.
2. a kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater according to claim 1, feature
Be: in step 1), the range for adjusting pH is 3.0~6.0.
3. a kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater according to claim 1, feature
Be: in step 1), oxidant is at least one of hydrogen peroxide, sodium peroxydisulfate.
4. a kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater according to claim 1, feature
Be: in step 2), the time that waste water recycles in cycle cooling plating drum is 2min~5min.
5. a kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater according to claim 1 or 4, special
Sign is: in step 2), cycle cooling plating drum is made of water inlet pipe, tubulation and outlet pipe, and tubulation setting is intracavitary in microwave reaction
Portion, water inlet pipe connection adjust tank lower end and tubulation lower end, and outlet pipe connection adjusts tank upper end and tubulation upper end；Outside microwave reaction chamber
Metal shell is wrapped up in portion, and inside is equipped with microwave generator, magnetron, transformer and tubulation；Microwave reaction chamber and cooling device phase
Connection.
6. a kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater according to claim 5, feature
It is: fills 4 mesh~20 mesh catalyst in tubulation, catalyst is at least one of active carbon, iron carbon, zeolite.
7. a kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater according to claim 6, feature
It is: in microwave reaction chamber, magnetron is set in the position of tubulation catalyst filling, is arranging the highest order of microwave electromagnetic wave field
On pipe fluid and catalyst.
8. a kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater according to claim 1, feature
Be: in step 2), the temperature of microwave catalysis oxidation reaction is 70 DEG C~90 DEG C, and the time of reaction is 40min~70min.
9. a kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater according to claim 1, feature
Be: in step 3), heat-exchange system includes heat exchange equipment, and heat exchange equipment is respectively equipped with hot side water inlet, hot side discharge outlet, cold
Side water inlet and cold side discharge outlet.
10. a kind of method of circulation batch type microwave catalysis oxidation processing organic wastewater according to claim 5, feature
It is: adjusts tank, medicine system, cycle cooling plating drum, microwave reaction chamber, cooling device, heat-exchange system and controlled respectively with automatic
System processed is connected.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109704437A (en) * | 2019-03-01 | 2019-05-03 | 黑龙江翰恒环保科技有限公司 | A kind of method of microwave/hydrogen peroxide treatment cattle manure biogas slurry |
| CN110294512A (en) * | 2019-08-05 | 2019-10-01 | 重庆昌泰水处理有限公司 | A kind of quantum cracking reaction method and its reactor for sewage treatment |
| CN110479753A (en) * | 2019-07-30 | 2019-11-22 | 广东工业大学 | A kind of microwave catalysis oxidation device and method of organic polluted soil |
| CN112979010A (en) * | 2021-02-08 | 2021-06-18 | 中国工程物理研究院应用电子学研究所 | Microwave high-field advanced oxidation reaction treatment method for organic wastewater |
| CN113651483A (en) * | 2021-09-27 | 2021-11-16 | 四川和诚振药科技有限公司 | Advanced oxidation reaction treatment device and method for organic waste liquid |
| CN113857231A (en) * | 2021-08-18 | 2021-12-31 | 广东工业大学 | Preparation of iron-based biochar wave-absorbing material and method for repairing mercury-contaminated soil through microwave synergy |
| CN115231686A (en) * | 2022-08-25 | 2022-10-25 | 广州茂华环境发展有限公司 | Controllable wet catalytic oxidation closed-loop tubular reaction system for treating organic waste |
| CN117049685A (en) * | 2023-08-29 | 2023-11-14 | 江苏易简环保科技有限公司 | High-efficient catalytic oxidation device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004042793A1 (en) * | 2004-09-03 | 2006-03-09 | Columbus Filter Gmbh | Continuous removal of hydrocarbons from waste water comprises mixing it with oxidizing agent and passing it over oxidation catalyst in reactor which is fitted with microwave heating system |
| CN101143736A (en) * | 2007-07-24 | 2008-03-19 | 孙宪彬 | Method for processing sewage by microwave chemistry and corresponding system |
| CN102826697A (en) * | 2012-08-08 | 2012-12-19 | 青岛昊源环境工程技术有限公司 | Method and system for modularized combined treatment of high-difficulty organic waste water |
| CN106830170A (en) * | 2017-01-05 | 2017-06-13 | 中国石油天然气集团公司 | Oilfield sewage van-type microwave catalysis remove COD devices |
| CN107055892A (en) * | 2017-03-07 | 2017-08-18 | 南京工业大学 | Method for microwave-assisted catalytic oxidation of biochemical tail water of brewing wastewater by compounding of multiple metals |
| CN207158869U (en) * | 2017-09-06 | 2018-03-30 | 重庆交通大学 | Water treatment facilities and system |
| CN108249737A (en) * | 2017-12-26 | 2018-07-06 | 四川建筑职业技术学院 | A kind of method of microwave reinforced catalytic wet oxidation processing sludge |
-
2018
- 2018-07-11 CN CN201810757540.2A patent/CN109019753B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004042793A1 (en) * | 2004-09-03 | 2006-03-09 | Columbus Filter Gmbh | Continuous removal of hydrocarbons from waste water comprises mixing it with oxidizing agent and passing it over oxidation catalyst in reactor which is fitted with microwave heating system |
| CN101143736A (en) * | 2007-07-24 | 2008-03-19 | 孙宪彬 | Method for processing sewage by microwave chemistry and corresponding system |
| CN102826697A (en) * | 2012-08-08 | 2012-12-19 | 青岛昊源环境工程技术有限公司 | Method and system for modularized combined treatment of high-difficulty organic waste water |
| CN106830170A (en) * | 2017-01-05 | 2017-06-13 | 中国石油天然气集团公司 | Oilfield sewage van-type microwave catalysis remove COD devices |
| CN107055892A (en) * | 2017-03-07 | 2017-08-18 | 南京工业大学 | Method for microwave-assisted catalytic oxidation of biochemical tail water of brewing wastewater by compounding of multiple metals |
| CN207158869U (en) * | 2017-09-06 | 2018-03-30 | 重庆交通大学 | Water treatment facilities and system |
| CN108249737A (en) * | 2017-12-26 | 2018-07-06 | 四川建筑职业技术学院 | A kind of method of microwave reinforced catalytic wet oxidation processing sludge |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109704437A (en) * | 2019-03-01 | 2019-05-03 | 黑龙江翰恒环保科技有限公司 | A kind of method of microwave/hydrogen peroxide treatment cattle manure biogas slurry |
| CN109704437B (en) * | 2019-03-01 | 2021-07-27 | 黑龙江翰恒环保科技有限公司 | Method for treating cow dung fermentation biogas slurry by microwave/hydrogen peroxide |
| CN110479753A (en) * | 2019-07-30 | 2019-11-22 | 广东工业大学 | A kind of microwave catalysis oxidation device and method of organic polluted soil |
| CN110294512A (en) * | 2019-08-05 | 2019-10-01 | 重庆昌泰水处理有限公司 | A kind of quantum cracking reaction method and its reactor for sewage treatment |
| CN112979010A (en) * | 2021-02-08 | 2021-06-18 | 中国工程物理研究院应用电子学研究所 | Microwave high-field advanced oxidation reaction treatment method for organic wastewater |
| CN113857231A (en) * | 2021-08-18 | 2021-12-31 | 广东工业大学 | Preparation of iron-based biochar wave-absorbing material and method for repairing mercury-contaminated soil through microwave synergy |
| CN113651483A (en) * | 2021-09-27 | 2021-11-16 | 四川和诚振药科技有限公司 | Advanced oxidation reaction treatment device and method for organic waste liquid |
| CN115231686A (en) * | 2022-08-25 | 2022-10-25 | 广州茂华环境发展有限公司 | Controllable wet catalytic oxidation closed-loop tubular reaction system for treating organic waste |
| CN117049685A (en) * | 2023-08-29 | 2023-11-14 | 江苏易简环保科技有限公司 | High-efficient catalytic oxidation device |
| CN117049685B (en) * | 2023-08-29 | 2024-03-26 | 江苏易简环保科技有限公司 | High-efficient catalytic oxidation device |
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