CN107827222A - A kind of sewage water treatment method and equipment of magnetic three-phase Fenton reactor - Google Patents
A kind of sewage water treatment method and equipment of magnetic three-phase Fenton reactor Download PDFInfo
- Publication number
- CN107827222A CN107827222A CN201711354118.4A CN201711354118A CN107827222A CN 107827222 A CN107827222 A CN 107827222A CN 201711354118 A CN201711354118 A CN 201711354118A CN 107827222 A CN107827222 A CN 107827222A
- Authority
- CN
- China
- Prior art keywords
- fenton
- reactor
- reaction
- reaction area
- magnetic
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- 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
- C02F2305/026—Fenton's reagent
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of sewage water treatment method and equipment of magnetic three-phase Fenton reactor, step is：(A), treatment sewage enters the bottom of reactor by inlet opening, and processing sewage mixes with hydrogen peroxide in the bottom of reactor；(B), enter Fenton's reaction area after inhalant region water distribution uniformity after solution mixing and carry out Fenton's reaction, caused iron cement precipitation and carrier granular enter production pool in the presence of current in course of reaction；(C) gas caused by, producing the reaction at the top of pool has the air bleeding valve discharge reactor at the top of production pool.The magnetic three-phase Fenton equipment is made up of reactor, inhalant region, Fenton's reaction area, exhalant region, agitating device, reflux pump, pH monitors, air bleeding valve, return duct, support, aerator, aeration plate, air compressor, flowmeter, wastewater influent pump, dosing pump etc., the organic waste water of difficult degradation can effectively be handled, it is stripped of Colority of Sewage Water, it is simple in construction, it is easy to use, improve catalyst service efficiency and reduce the precipitation of iron cement.
Description
Technical field
The invention belongs to trade effluent advanced treating field, is more particularly to a kind of sewage of magnetic three-phase Fenton reactor
Processing method, also relate to a kind of equipment of the sewage disposal of magnetic three-phase Fenton reactor.
Background technology
The murder by poisoning organic pollution of the heavy polluted industries such as papermaking, printing and dyeing, pharmacy, plating, has that biodegradability is poor, concentration
The features such as height, difficult degradation, toxicity are greatly, advanced treating and reuse technology difficulty are big, lacks ripe, effective and economic processing side
Method.Common Sewage advanced treatment is with reuse technology except in the method for ecology, high-level oxidation technology can effectively reduce industrial wastewater
COD, it is in distress that the Fenton reagent in high-level oxidation technology can almost aoxidize the institute that traditional wastewater treatment technology can not remove
Degradation of organic substances, if benzene class, phenols, trichloro ethylene, azo dyes, nitrophenols, chlorobenzene, aromatic amine, chloroform, methyl are to sulphur
Phosphorus, surfactant etc..But traditional Fenton system has two birth defects to limit its popularization and application:First, traditional Fenton medicament
Effective rate of utilization is relatively low, and need to add a large amount of medicaments can just obtain preferable result, and two be due to the presence of a large amount of iron ions, is caused
After reaction terminates, cause a large amount of iron cements to deposit, improve processing cost and trigger secondary pollution problem, and heterogeneous Fenton-like system
It can solve the above problems.
《Homogeneous and heterogeneous Fenton type catalyst Oxidation of Wastewater Containing Phenol》([J] South China Science ＆ Engineering University journal (from
Right science version), 2003,31 (5), what medicine of 52-54., the such as Xu Kefeng, Xi Hongxia), what medicine etc. is respectively with activated carbon and artificial boiling
Stone is carrier, is prepared for two kinds of heterogeneous catalysis of Fe/ activated carbons and Fe/ artificial zeolites, and degraded has been carried out to phenol wastewater and has been ground
Study carefully, and experimental result and homogeneous Fenton systems are contrasted, the results showed that heterogeneous catalysis has than homogeneous catalyst
There is higher activity, 2% and 8% has been respectively increased than homogeneous reaction system in the degradation efficiency of two kinds of catalyst Pyrogentisinic Acids.It is non-equal
Phase Fenton reactions remain the advantages of homogeneous Fenton reactions oxidation scope is wide, reaction speed is fast, while have widened to solution
The requirement of pH value, the scope that can handle waste water is expanded, turn avoid secondary pollution caused by iron ion possibility.But heterogeneous sweet smell
Process still needs to solve the addition for how further reducing molysite, reduces the generation of sludge, and catalyst and reaction solution connect
The problem of touching, the efficiency of catalysis oxidation is improved, lift effluent quality.((Effect ofoperating parameters on the
decolorization and oxidation of textile wastewater by the fluidized-bed
Fenton process.》(Sep.Purif.Technol., 2011,83,100-105.Su C.C., Massakul P.A.,
Chavalit R., Lu M.C.) Su etc. handles certain textile waste with the fluidized bed processes of Fenton mono-, pH is investigated, H202 adds dense
Degree, the concentration of Fee ten are to decolouring and the influence of oxidation susceptibility.Result of study shows, in pH=3, [COD]:[Fe salt]:[H202]=
1:0.95:When 3.17, the fluidized bed process chroma removal rates of Fenton mono- reach 92, oxygenation efficiency 49%.HzOz is continuously added, is aoxidized
Rate reaches as high as 87；But the fluid catalysts of Fenton mono- are easily lost in water outlet.
Although traditional Fenton reactor has widened requirement of the reaction environment to pH to a certain extent, still need to add a large amount of acid
Base reagent, and the operation form of Fenton fluid bed is larger to energy requirements, and due to a large amount of phase mutual friction in fluidisation state, urge
Agent surface metal ion is easily dissolved in sewage to be lost in water outlet current, for example quartzy sand load of part inorganic carrier catalyst
The problems such as low, the preparation difficulty of active lifetime be present in ferriferous oxide catalyst.
The content of the invention
For Fenton reactor energy consumption present in prior art is big, catalyst efficiency is low and effluent quality is unstable
Calmly, a series of problems, such as molysite, hydrogen peroxide, soda acid medicament demand are big, and sludge output is big, the purpose of the present invention is to be the provision of
A kind of sewage water treatment method of magnetic three-phase Fenton reactor, it is easy to implement the method, it is easy to operate, it is organic effectively to handle difficult degradation
Waste water, reduce COD of sewage, be stripped of Colority of Sewage Water, sludge yield is low.
Another object of the present invention is to be the provision of a kind of sewage disposal device of magnetic three-phase Fenton reactor, knot
Structure is simple, easy to use, and it can reduce Fenton reactor energy consumption, save all kinds of medicament demands, while improve catalyst
Service efficiency and the precipitation for reducing iron cement.
In order to realize above-mentioned purpose, the present invention uses following technical measures：
A kind of sewage water treatment method of magnetic three-phase Fenton reactor, its step are：
(A), treatment sewage enters the bottom of reactor by inlet opening, while hydrogen peroxide is entered instead by the first dosing pump
The bottom of device is answered, the second described dosing pump is that sulfuric acid adds pump；Treatment sewage is preliminary in the bottom of reactor with oxidant
Mixing, described oxidant active constituent content are not less than 10%.Good reaction condition is provided for Fenton's reaction.Described sheet
The dosage of oxidant is 100-2000ml/L in step.Described oxidant is hydrogen peroxide, sodium hypochlorite or with hydrogen peroxide, secondary
Sodium chlorate is the hybrid oxidant of main component, and hydrogen peroxide and sodium hypochlorite molar ratio are 0.5- in mixed type oxidizing agent solution
2。
(B), enter Fenton's reaction area after inhalant region water distribution uniformity after solution mixing and carry out Fenton's reaction, sewage is in Fenton
After reaction zone reaction, caused iron cement precipitation and carrier granular enter production pool, Fenton in the presence of current in course of reaction
Acid system required for reaction is provided by the second dosing pump in Fenton's reaction area, and waste water passes through in the presence of heterocatalysis
Fenton's reaction is degraded；Waste water after processing discharges reactor by producing osculum at the top of pool, part water outlet by reflux pump,
Return duct is back to reactor bottom, and the pH in described fenton catalyst is 1.5-4.5.Reaction time is 20-45min.Place
Water outlet COD is stably reached after reason《Town sewage plant pollutant provides standard》One-level A is marked, and total phosphorus drops to the class water of lake storehouse earth's surface three limit
Value standard, i.e.,：COD≤50mg/L；TP≤0.05mg/L (lake storehouse limit value).
(C), produce at the top of pool has the air bleeding valve at the top of production pool to discharge reactor due to gas caused by reaction, described
Reflux pump capacity of returns be 0.5-10 times of flow of inlet water.Water outlet COD is stably reached after processing《Town sewage plant pollutant granting
Standard》One-level A is marked, and total phosphorus drops to the class water standard limit of lake storehouse earth's surface three, i.e.,：COD≤50mg/L；TP≤0.05mg/L (Hu Ku
Limit value).
Sewage after the described processing sludge output after pH is adjusted is less than 0.14g/L.
By abovementioned technology, it is crucial that second step, mainly solve that catalyst is hardened, medicament is effectively sharp
With the difficult point for the technology such as rate is low, catalytic reaction is insufficient, molysite content is high, later stage iron cement yield is big in Ying Houshui.Mainly solve
Catalyst of having determined is hardened, catalyst is using the rear life-span is low, the big technical problem of iron cement yield after Fenton's reaction.Mainly reach and urged
Agent is reused number and improved, and added amount of chemical reduces, and iron cement yield is reduced, and directly reduces the handling of later stage iron cement, entirely
Fenton's reaction operating cost is greatly reduced in process.Water outlet COD can stably reach with total phosphorus index《Wastewater Treatment discharges
Standard》One-level A standards.Its invention is compared with traditional Fenton's reaction, under the premise of having reached identical treatment effect, added amount of chemical
Greatly reduce, iron cement yield is greatly reduced.
The main distinction of technical scheme and prior art is changing the state and environment of medicament, in the environment of catalyst
In, stability of the medicament before participating in reacting is improved, avoids medicament that non-Fenton's reaction occurs.Relevant technical parameter is see under
Table.
Note：Iron cement yield is more few better.
A kind of sewage disposal device of magnetic three-phase Fenton reactor, it by reactor, inhalant region, Fenton's reaction area, go out
Pool, water inlet, evacuation port, agitating device, return port, reflux pump, pH monitoring holes, pH monitors, adding of agent hole, exhaust
Valve, backflow inlet opening, delivery port, return duct, support, ultrasonic wave ask its equipment, aerator, aeration plate, surge flask, air pressure
Contracting machine, flowmeter, wastewater influent pump, the first dosing pump, the second dosing pump composition, it is characterised in that：Described inside reactor
Sequentially consist of:Inhalant region, Fenton's reaction area and production pool；The bottom of described reactor is provided with water inlet pipe, stirring
Device, described wastewater influent pump, the delivery port of the first dosing pump are connected (connection) with the water inlet pipe of reactor, and described sewage enters
Flowmeter is respectively arranged with water pump, the first dosing pump；Fenton's reaction area is located at the top of described inhalant region, described Fenton
Magnetic carrier adsorption of solid state catalyst is distributed with the inner homogeneous of reaction zone, and Fenton's reaction area is connected with production pool, described sweet smell
Reaction zone top pause as production pool；Middle part passes through adding of agent hole and the in reactor upper portion side wall corresponding to Fenton's reaction area
Two dosing pumps are connected, and the first pH monitoring holes and the 2nd pH monitoring holes that upper and lower part is set in sidewall of reactor detect for pH
Hole, production pool return port are connected with return duct, reflux pump, return line flow gauge successively；Described return duct outlet with it is described
Sidewall of reactor bottom is provided with return duct, and the production pool top sets air bleeding valve and delivery port.
Agitator is provided with described inhalant region；Described Fenton's reaction area is provided with multiple (3-6 roots) support frames；Institute
The magnetic carrier stated is fixed on described support frame, and reactor wall pastes inner liner polytetrafluoroethylene after upper Magnetic adhesive mat, gathers
One kind in vinyl chloride, lead lining, glass reinforced plastic lining or rubber lining is through row preservative treatment.
Described Fenton's reaction area is located at the top of described inhalant region, the inner homogeneous distribution in described Fenton's reaction area
Be magnetic carrier adsorption solid catalyst, is production pool above described Fenton's reaction area；Reactor corresponding to Fenton's reaction area
Mider hole is connected with the second dosing pump in upper portion side wall, in sidewall of reactor top set three holes successively with return duct, backflow
Pump, the connection of return line flow gauge；Described return duct outlet is provided with the first hole with sidewall of reactor bottom, and production pool top is set
Put air bleeding valve and delivery port, delivery port successively with water side pressure gauge, go out water pump and be connected.
Described Fenton's reaction area internal solid catalyst is ferrous alloy material, based on iron, addition carbon, copper, aluminium, magnesium,
One or more (mixing of 2-9 kind arbitrary proportions) in manganese, palladium, nickel are the alloy that combination is formed as fenton catalyst, sweet smell
The first delivery port is provided with corresponding to reaction zone in reactor upper portion side wall, first delivery port successively with return duct, backflow
Pump, the connection of return line flow gauge；Described return duct outlet connects with the water inlet of reactor bottom；
The bottom in described Fenton's reaction area is provided with aeration flusher, and ultrasonic wave cleaning is provided with outside Fenton's reaction area and is set
It is standby.Described aeration back purge system includes backwash aeration plate, surge flask, air compressor, ultrasonic cleaning apparatus and branch
Frame is connected, and the ultrasonic cleaning apparatus can be moved up and down through row cleaning operation on support by programme-control.
The top in described production pool is connected with air bleeding valve and drainpipe respectively, and described drainpipe will under fixed flow rate
Sewage discharge reactor after processing.The second delivery port is provided with sidewall of reactor corresponding to described production pool, it is described
Second delivery port successively with water side pressure gauge, go out water pump and be connected.
Preferably, it is provided with agitator in described inhalant region；Described Fenton's reaction area is provided with multigroup (3-5 groups) support
Frame；
Preferably, the lateral wall bottom in described Fenton's reaction area is provided with aeration back purge system, the recoil of described aeration
Cleaning device includes backwash flowmeter, surge flask, air compressor.The outside in Fenton's reaction area is provided with ultrasonic cleaning equipment.Instead
Device is answered to use periodicity situ cleaning regeneration method, aeration is cleaned with ultrasonic wave and carried out simultaneously, and catalyst can be when considerably long
It is interior to keep activity not decline.
Preferably, air bleeding valve is connected with the top of described production pool, the gaseous mixture for producing water zone build is sent through air bleeding valve
Reactor.
Preferably, ferrous alloy granular size 50nm-1000nm in Fenton's reaction area, filling mode use magnetic field fixation side
Formula, filling rate 5-50%, during reaction, catalyst will not take reactor out of by sewage.
Organic wastewater, sludge of sewage treatment plant CONCENTRATION PLANT pressure mud waste water for biochemical property difference, with traditional Fenton phase
Than being greatly improved organic matter removal efficiency, while caused solid waste amount is few after Fenton's reaction.The sulfuric acid that traditional Fenton is used
Ferrous medicament is oxidizable rotten, and molysite medicament of the present invention is multiphase mixture, easy accumulating, is unlikely to deteriorate.With other class Fentons such as
Electrolysis-Fenton, activated carbon-Fenton is compared, simple to operate, cost, stable performance.The microwave system being equipped with the present invention, molysite
By micro wave regeneration iron salt catalyst after medicament passivation, ensure the life-span of catalyst, improve class Fenton's reaction effect.
The present invention compared with prior art, has advantages below and effect：
(1) hydrogen peroxide, acid, alkali added amount of chemical are reduced.It is anti-that fenton catalyst set is designed with the reactor of the present invention
Area is answered, Fenton loads ferrous alloy material as heterogeneous Fenton's reaction catalyst, Fenton's reaction needs can be provided in the region
Acid reaction environment.When water outlet reaches production pool, water outlet pH gradually rises, and meets water outlet acid-base property requirement.In the body
In the course of reaction of system, eliminate soda acid adds regulation process, reduces operating cost；
(2) catalyst service efficiency is improved.In the reactor, because the presence in magnetic field is specific by catalyst set
In field region, original fluid bed system is instead of, reduces the violent phase mutual friction of catalyst particles intergranular, reduces catalysis
The dissolution of agent surface metal ion, extends catalyst life, improves its service efficiency；
(3) new Fenton reactor of the invention, using magnetic field load ferrous alloy, the addition of molysite is reduced, and greatly
The big generation for reducing sludge, using the reaction system of magnetic field fixed catalyst, solve the contact problems of catalyst and reaction solution, and
The hardened of catalyst is prevented, improves the efficiency of catalysis oxidation, further lifts effluent quality, reduces colourity, in industrial difficult drop
Have great importance in terms of solution wastewater treatment and regeneration.
Brief description of the drawings
Fig. 1 is a kind of sewage disposal device schematic diagram of magnetic three-phase Fenton reactor.
Fig. 2 is a kind of structural representation of the sewage disposal device of magnetic three-phase Fenton reactor.
Fig. 3 is Fig. 1 top view.
Fig. 4 is a kind of sewage disposal device effect diagram of magnetic three-phase Fenton reactor.
In figure:1- reactors；2- inhalant regions；3- Fenton's reactions area；4- exhalant regions；5 water inlet pipes (mouth)；5-1- is arranged
Eat dishes without rice or wine；6- agitating devices (0.37KW)；7- return ducts (hole)；8- reflux pumps (50FPZ-22/2.2KW)；The pH of 9- the first are supervised
Gaging hole；The pH monitoring holes of 11- the 2nd；(the control of the pH monitors of 9-1-pH monitors (controller+tetrafluoroethene electrode) 11-1- the 2nd
Device processed+tetrafluoroethene electrode)；10- adding of agent hole；12- air bleeding valves (common)；13- backflow water inlet pipes (hole)；14- goes out
Water pipe (mouth)；15- return ducts；16- supports；17- ultrasonic cleaning apparatus (KM-D1048)；18- aerators；18-1-
Aeration plate；18-2- surge flasks (common)；18-3- air compressors (600W*9L)；19- flowmeters (common)；20- sewage
Intake pump (50FPZ-22/2.2KW)；The dosing pumps of 21- first (BR-8000Y35)；The dosing pumps of 22- second (BR-8000Y35)；
Embodiment
Embodiment 1：
A kind of sewage water treatment method of magnetic three-phase Fenton reactor, its step are：
(A) sewage is entered the bottom of reactor by water inlet, and oxidant enters reaction by the first dosing pump by flowmeter
Device bottom, the second described dosing pump are that sulfuric acid adds pump；In agitator, aerating system and the reflux pump that reactor bottom is set
Hydraulic action under, sewage and oxidant into reactor bottom enter reaction zone after thorough mix-ing；Carried for Fenton's reaction
For good premixing effect.
(B) enter Fenton's reaction area after inhalant region water distribution uniformity after solution mixing and carry out Fenton's reaction.Fenton catalyst
In reaction zone, the pH in the region is controlled 1.5 or 2 or 3 or 4 or 4.5, meets the reaction acidity environmental demand of Fenton's reaction.
By second medicament pump to addition sulfuric acid in the middle part of reactor, the pH of reaction zone is adjusted in control range.Sewage is in Fenton's reaction
Reactor is discharged by delivery port after area's reaction, caused a small amount of sediment is with sewage outflow reactor in course of reaction；
(C) the gaseous mixture discharge reactor added up in pool, portion will be produced under fixation pressure by producing the air bleeding valve at the top of pool
Separate water and reactor bottom is back to by reflux pump, return duct.Water outlet COD is stably reached after processing《Town sewage plant pollutes
Thing provides standard》One-level A is marked, and total phosphorus drops to the class water standard limit of lake storehouse earth's surface three, i.e.,：COD≤50mg/L；TP≤0.05mg/L
(lake storehouse limit value).
By abovementioned technology, fenton catalyst material maintains more than 90% efficiency in 100 uses.
Embodiment 2：
The present embodiment difference from Example 1, backflow pump discharge are 1-10 times of flow of inlet water, come back to reactor
Sewage diluted raw water, improve the load of reactor, and be improved the service efficiency of Fenton reagent, iron-based is urged
Agent, composition are iron：Carbon：Copper=70-90:6-10:4-10, use are more abundant.Other steps and parameter and the phase of embodiment 1
Together.By taking Linen Wastewater as an example, COD clearances reach 70% or so, and colourity is reduced to 1-5 times.
Other implementation steps are same as Example 1.
Embodiment 3：
The present embodiment difference from Example 1, according to different influent qualities, the dosage of hydrogen peroxide is selected in 100-
1000ml/L.For example, dyeing waste water, hydrogen peroxide dosage is 800ml/L；The dosage of the hydrogen peroxide of Methyl Orange in Wastewater is
300mg/L.Hydrogen peroxide enters Fenton's reaction area after being mixed in drug feeding pipeline with sewage, in Fenton after being contacted with fenton catalyst
Out-phase Fenton's reaction occurs inside reaction zone, sewage is degraded.During 30min, dyeing waste water COD clearances can reach
80%；Methyl orange COD clearances reach 90%.
Other implementation steps are same as Example 1.
Embodiment 4：
The present embodiment difference from Example 1, by permanent magnet generation magnetic field be changed in short transverse it is multiple can power transformation
Magnetic field, other modes of operation are constant, can improve fluidisation state of the ferrum-based catalyst in Fenton's reaction area, reduce ferrum-based catalyst, into
It is divided into iron：Carbon：Copper=70-90:6-10:While mutually collision between 4-10, the outflow of catalyst is avoided, ensures catalyst in sweet smell
The mobility of reaction zone, further improve the catalytic efficiency of catalyst.Shorten sewage and reflect the residence time in the reactor.
Other implementation steps are same as Example 1, and (during reaction 30min, dyeing waste water COD clearances can reach 85%；First
Base orange COD clearances reach 95%.Catalyst hardened phenomenon is avoided, 10%) catalyst, which uses, to be improved.
Embodiment 5：
It can be seen from Fig. 1, Fig. 2, Fig. 3, a kind of sewage disposal device of magnetic three-phase Fenton reactor, it by reactor 1,
Inhalant region 2, Fenton's reaction area 3, exhalant region 4, water inlet pipe 5, evacuation port 5-1, agitating device 6, return duct (hole) 7, reflux pump 8；
First pH monitoring holes 9, the 2nd pH monitoring holes 11, the first pH monitors 9-1, the 2nd pH monitors 11-1, adding of agent hole 10, row
Air valve 12, backflow water inlet pipe (hole) 13, outlet pipe (mouth) 14, return duct 15, support 16, ultrasonic cleaning apparatus 17, aeration are set
Standby 18, aeration plate 18-1, surge flask 18-2, air compressor 18-3, flowmeter 19, wastewater influent pump 20, the first dosing pump 21,
Second dosing pump 22 forms, it is characterised in that：Inhalant region 2, Fenton's reaction area are sequentially consisted of inside described reactor 1
3 and production pool 4；The bottom of described reactor 1 is provided with water inlet pipe 5, agitator 6, and described wastewater influent pump 20, first adds
The delivery port of Teat pipette 21 is connected (connection) with the water inlet pipe 5 of described reactor 1, described wastewater influent pump 20, the first dosing
Flowmeter 19 is respectively arranged with pump 21；Fenton's reaction area 3 is located at the top of described inhalant region 2, described Fenton's reaction area 3
Inner homogeneous magnetic carrier adsorption of solid state catalyst is distributed with, composition is iron：Carbon：Copper=70-90:6-10:4-10, Fenton are anti-
Area 3 is answered to be connected with production pool 4, the described top of Fenton's reaction area 3 is production pool 4；In reactor 1 corresponding to Fenton's reaction area 3
In upper portion side wall middle part be connected by adding of agent hole 10 with the second dosing pump 22, the side wall upper part of reactor 1 and bottom setting
First pH monitoring holes 9 and the 2nd pH monitoring holes 11 are pH detection holes, production the return port of pool 4 successively with return duct 15, reflux pump 8,
Return line flow gauge 19 connects；The described outlet of return duct 15 is provided with return duct 7 with the described lower sidewall of agitating device 6
(hole), the production top of pool 4 set air bleeding valve 12 and delivery port 14.
Agitator 6 is provided with described inhalant region 2；Described Fenton's reaction area 3 is provided with multiple (3-6 roots) support frames；
Described magnetic carrier is fixed on described support frame, and the inwall of reactor 1 pastes inner liner polytetrafluoroethylene after upper Magnetic adhesive mat,
One kind in polyvinyl chloride, lead lining, glass reinforced plastic lining or rubber lining is through row preservative treatment.
The bottom in described Fenton's reaction area 3 is provided with aeration flusher 18, and being provided with microwave outside Fenton's reaction area cleans
Device 17.Described aeration back purge system 18 includes backwash aeration plate 18-1, surge flask 18-2, air compressor 18-3,
Ultrasonic cleaning apparatus 17 is connected with support 16, and the ultrasonic cleaning apparatus 17 can be on support 16 by being moved down in programme-control
Move through row cleaning operation.
The top in described production pool 4 is connected with air bleeding valve 12 and outlet pipe 14 respectively, and described drainpipe flows fixed
The sewage after processing is discharged into reactor 1 under speed.
Described Fenton's reaction area 3 makes catalyst be evenly distributed on Fenton's reaction area using magnetic field, and catalyst closes for iron-based
Bronze end, filling rate 10 or 20 or 30 or 40 or 50 or 60 or 70 or 80%, the packed bed of catalyst does not expand during reaction
Reactor will not be taken out of by sewage.The magnetic field in Fenton's reaction area 3 can be produced by permanent magnet or electromagnet.Fenton's reaction area 3
Ferrum-based catalyst based on iron, addition carbon, copper, aluminium, magnesium, manganese, palladium, the one or more in nickel be (2-10 kind arbitrary proportions
Mixing) it is the alloy that combination is formed.Oxidant used in Fenton's reaction is for hydrogen peroxide, sodium hypochlorite or with hydrogen peroxide, secondary chlorine
Sour sodium is the hybrid oxidant of main component, and hydrogen peroxide and sodium hypochlorite molar ratio are 0.5-2 in mixed type oxidizing agent solution.
Reactor 1 divides three layers from bottom to top:Inhalant region 2, Fenton's reaction area 3, production pool 4.Iron-base alloy catalyst is in magnetic
It is uniformly distributed in the presence of inside Fenton's reaction area 3.The fenton catalyst being related in this magnetic three-phase Fenton reactor, with
Raw material based on iron, the one or more (mixing of 2-10 kind arbitrary proportions) added in carbon, copper, aluminium, magnesium, manganese, palladium, nickel are
Combine the alloy formed.
The centre position of Fenton's reaction area 3 is provided with 4-10 support, and multiple (4-10) are uniformly mounted with support forever
Magnet, production pool 4 are located at the top of reactor 1.Ferrum-based catalyst in Fenton's reaction area 3, granular size 50nm-1000nm, is filled out
Fill mode and use magnetic field fixed catalyst, filling rate 30%, catalyst will not be taken out of by current under the influence of a magnetic field during reaction
Reactor, and Fenton's reaction area is rested on always as heterogeneous Fenton reagent, pollutant is occurred in carrier surface heterogeneous
Fenton's reaction, degraded.
Be provided with outlet pipe 14 corresponding to Fenton's reaction area 3 in the upper portion side wall of reactor 1, outlet pipe 14 successively with return duct
15th, reflux pump 8 connects；The described outlet of return duct 15 connects with the return duct 7 of the described bottom of reactor 1；Produce the correspondence of pool 4
The side wall of reactor 3 on be provided with the second delivery port 14 (such as Fig. 3).
The water inlet pipe 5 of the bottom of reactor 1 connects, and the water inlet pipe 5 of the bottom of reactor 1 controls trade effluent water inlet, and first adds
Teat pipette 21 is connected by pipeline with water inlet pipe 5, evacuation port 5- respectively, and the second dosing pump 22 passes through the adding of agent hole 10 on pipeline
Be connected with Fenton's reaction area 3, the first dosing pump 21, the second dosing pump 22 be respectively hydrogen peroxide water inlet and pH regulation and it is standby
Mouthful.Wastewater influent pump 20 is connected with evacuation port 5-1, the evacuation port 5-2 of 5 wastewater influent pump of water inlet pipe 20 respectively, the first dosing pump 21,
The delivery port of second dosing pump 22 connects with the water inlet of reactor 3.
By abovementioned technology, Fenton's reaction area is crucial, and it is easily hardened to solve catalyst, and sludge output is big etc. after reaction
Problem.The invention has compared with prior art blows funny service life length, and sludge output is few after reaction.It is organic for difficult degradation
Thing has stronger degradation effect, medicament availability height.Tail water COD after processing can reach with total phosphorus index《Sewage disposal
Factory's pollutant emission standard》One-level A standards.
This magnetic three-phase Fenton reactor Water treatment is broadly divided into two steps:
(1) advanced oxidation processes of heterogeneous Fenton；
(2) cleaning process in Fenton's reaction area.
Heterogeneous catalytic oxidation system is mainly concerned with:(1) reactant is diffused into solid phase from liquid phase；(2) reactant adsorbs
In catalyst surface；(3) catalytic reaction；(4) reaction product desorbs from catalyst surface；(5) reaction product is diffused into liquid phase.Iron
Base Fenton carrier is as the carrier in this reactor, in required sour environment.The Fe simple substance that is loaded in fenton catalyst, copper,
Carbon etc. other refer and synthesize thing and participate in heterogeneous Fenton's reaction.Polluter is degraded after reaction a period of time.
Heterogeneous Fenton process typically can be regarded as procedure below:
Adsorption process:A (oxidant)+S (Adsorption on Surface center) → AS；
B (pollutant)+S (Adsorption on Surface center) → BS；
Catalytic reaction:AS+BS → PS (product on surface)+S (Adsorption on Surface center)；
Desorption dissociation:PS → P (liquid phase main body product)+S (Adsorption on Surface center).
The heterogeneous Fenton process of ferrum-based catalyst Fenton carrier is as follows in this reactor:
Fe+H2O2→Fe2++0H-+H0·
Fe2++H2O2→Fe3++0H-+H0·
Fe+Fe3+→Fe2+
By abovementioned technology, reduce hydrogen peroxide, soda acid added amount of chemical.Improve catalyst service efficiency and big
It is big to reduce iron cement precipitation.In the case, by taking treatment of dyeing wastewater factory sludge concentration tank supernatant as an example, COD clearances reach
75-95% or so is arrived, and colourity is reduced to 1-5 times.
Embodiment 6：
Such as Fig. 2, the difference of this embodiment scheme and embodiment 5 is, Fenton reactor water inlet portion, inhalant region 2
Inside set agitator 6, be provided with 4-10 support frame 3-1 at Fenton's reaction area 3, contribute to fenton catalyst uniformly to anchor at reaction
Area.Effluent quality change changes less compared with embodiment 5.The flow velocity of the second dosing pump is adjusted, pH when regulation and control are reacted, is ensuring tail
On the premise of water is up to standard, catalyst service life extends 20%, and sludge yield reduces by 30%.Total phosphorus is reduced to by 7mg/l
0.05mg/l, COD are reduced to 60mg/l by 130mg/l, and medicament expense is 0.98 yuan/ton of sewage.
Embodiment 7：
The present embodiment and the difference of embodiment 5 are that the top vent valve (12) in the production pool 4 of Fenton reactor will
Gaseous mixture connection discharge reactor 1 in reactor.
Such as Fig. 1, the bottom in Fenton's reaction area 3 is provided with aeration back purge system 18, and the outside in Fenton's reaction area 3 is provided with ultrasound
Ripple cleaning equipment 17, described aeration back purge system 4 include flowmeter 4-1, surge flask 4-2, air compressor 4-3.It is described
Ultrasonic cleaning device 17 is fixed on reactor outside support 16, can be moved up and down along support 16, the catalysis to Fenton's reaction area 3
Agent is cleaned through row ultrasonic wave, and using periodicity clean-in-place method, ultrasound is cleared up through row simultaneously with aeration, it can be ensured that catalysis
Agent keeps activity not decline within the long duration.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, the protection domain of this patent should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of sewage water treatment method of magnetic three-phase Fenton reactor, its step are：
(A), treatment sewage enters the bottom of reactor by inlet opening, while hydrogen peroxide enters reaction by the first dosing pump
The bottom of device, treatment sewage mix with hydrogen peroxide in the bottom of reactor, and the dosage of described hydrogen peroxide is 10-
1000mg/L, reaction condition is provided for Fenton's reaction, the dosage of oxidant is 100-2000ml/L in this described step, institute
The oxidant stated is hydrogen peroxide, sodium hypochlorite or with hydrogen peroxide, the hybrid oxidant of sodium hypochlorite, in mixed type oxidizing agent solution
Hydrogen peroxide and sodium hypochlorite molar ratio are 0.5-2；
(B), enter Fenton's reaction area after inhalant region water distribution uniformity after solution mixing and carry out Fenton's reaction, sewage is in Fenton's reaction
After area's reaction, caused iron cement precipitation and carrier granular enter production pool, Fenton's reaction in the presence of current in course of reaction
Acid system provided by the second dosing pump in Fenton's reaction area, waste water dropped under heterocatalysis by Fenton's reaction
Solution；Waste water after processing discharges reactor by producing osculum at the top of pool, and part water outlet is back to instead by reflux pump, return duct
Answer device bottom, the pH in described fenton catalyst is 1.5-4.5, reaction time 20-45min, and water outlet COD is stable after processing
Reach one-level A marks, total phosphorus drops to the class water standard limit of lake storehouse earth's surface three；
(C) gas caused by, producing the reaction at the top of pool has the air bleeding valve discharge reactor at the top of production pool, described reflux pump
Capacity of returns is 0.5-10 times of flow of inlet water, and water outlet COD stably reaches one-level A marks after processing, and total phosphorus drops to the class of lake storehouse earth's surface three
Water standard limit；
Sewage after the described processing sludge output after pH is adjusted is less than 0.14g/L.
2. a kind of sewage disposal device of magnetic three-phase Fenton reactor described in claim 1, it includes reactor（1）, enter
Pool（2）, Fenton's reaction area（3）, exhalant region（4）, water inlet pipe（5）, agitating device（6）, return duct（7）, reflux pump（8）, row
Air valve（12）, outlet pipe（14）, return duct（15）, flowmeter（19）, wastewater influent pump（20）, the first dosing pump（21）, it is special
Sign is：Described reactor（1）Inside sequentially consists of inhalant region（2）, Fenton's reaction area（3）With production pool（4）；Institute
The reactor stated（1）Bottom be provided with water inlet pipe（5）, agitator（6）, described wastewater influent pump（20）, the first dosing pump
（21）Delivery port and reactor（1）Water inlet pipe（5）It is connected, described wastewater influent pump（20）, the first dosing pump（21）On
It is respectively arranged with flowmeter（19）；Fenton's reaction area（3）Positioned at described inhalant region（2）Top, described Fenton's reaction area
（3）Inner homogeneous magnetic carrier adsorption of solid state catalyst, Fenton's reaction area is distributed with（3）With producing pool（4）It is connected, it is described
Fenton's reaction area（3）Top is production pool（4）；In Fenton's reaction area（3）Corresponding reactor（1）Middle part passes through in upper portion side wall
Adding of agent hole（10）With the second dosing pump（22）It is connected, reactor（1）The first pH monitoring holes that side wall upper part and bottom are set
（9）With the 2nd pH monitoring holes（11）For pH detection holes, is produced from pool（4）Return port successively with return duct（15）, reflux pump（8）, stream
Gauge（19）Connection；Described return duct（15）Outlet and agitating device（6）Lower sidewall is provided with return duct（7）, it is described
Produce pool（4）Top sets air bleeding valve（12）And delivery port（14）.
A kind of 3. sewage disposal device of magnetic three-phase Fenton reactor according to claim 2, it is characterised in that：It is described
Inhalant region（2）It is interior to be provided with agitator（6）, Fenton's reaction area（3）3-6 root support frames are provided with, magnetic carrier is fixed on support
On frame, reactor（1）Inwall pastes inner liner polytetrafluoroethylene after upper Magnetic adhesive mat, polyvinyl chloride, lead lining, glass reinforced plastic lining or
One kind in rubber lining.
A kind of 4. sewage disposal device of magnetic three-phase Fenton reactor according to claim 2, it is characterised in that：It is described
Fenton's reaction area（3）Bottom be provided with aeration flusher（18）, Fenton's reaction area outside is provided with microwave cleaning device（17）,
It is aerated back purge system（18）Including backwashing aeration plate（18-1）, surge flask（18-2）, air compressor（18-3）, ultrasonic wave
Cleaning equipment（17）With support（16）It is connected.
A kind of 5. sewage disposal device of magnetic three-phase Fenton reactor according to claim 2, it is characterised in that：It is described
Production pool（4）Top respectively with air bleeding valve（12）And drainpipe（14）Connection.
A kind of 6. sewage disposal device of magnetic three-phase Fenton reactor according to claim 2, it is characterised in that：It is described
Fenton's reaction area（3）Catalyst is set to be evenly distributed on Fenton's reaction area using magnetic field, catalyst is iron(-)base powder, filling
Rate 10-80%.
A kind of 7. sewage disposal device of magnetic three-phase Fenton reactor according to claim 2, it is characterised in that：It is described
Reactor（1）Divide three layers from bottom to top:Inhalant region（2）, Fenton's reaction area（3）, production pool（4）, iron-base alloy catalyst is equal
It is even to be distributed in Fenton's reaction area（3）Fenton catalyst that is interior, being related in magnetic three-phase Fenton reactor, the raw material based on iron,
Add the alloy that the one or more in carbon, copper, aluminium, magnesium, manganese, palladium, nickel are formed for combination.
A kind of 8. sewage disposal device of magnetic three-phase Fenton reactor according to claim 2, it is characterised in that：It is described
Fenton's reaction area（3）Centre position is provided with 4-10 support, is uniformly mounted with permanent magnet in support, produces pool（4）Position
In reactor（1）Top, Fenton's reaction area（3）Interior ferrum-based catalyst, granular size 50-1000nm, filling mode use magnetic
Field fixed catalyst, filling rate 30%.
A kind of 9. sewage disposal device of magnetic three-phase Fenton reactor according to claim 2, it is characterised in that：It is described
Fenton's reaction area（3）Corresponding reactor（1）Outlet pipe is provided with upper portion side wall（14）, outlet pipe（14）Successively with backflow
Pipe（15）, reflux pump（8）Connection, return duct（15）Outlet and reactor（1）The return duct of bottom（7）Connection, produce pool（4）It is right
The reactor answered（3）Delivery port is provided with side wall.
A kind of 10. sewage disposal device of magnetic three-phase Fenton reactor according to claim 2, it is characterised in that：Institute
The reactor stated（1）Bottom and water inlet pipe（5）Connection, the first dosing pump（21）Pass through pipeline and water inlet pipe respectively（5）, evacuation port
（5-1）Connection, the second dosing pump（22）Pass through the adding of agent hole on pipeline（10）With Fenton's reaction area（3）It is connected, sewage enters
Water pump（20）Respectively with evacuation port（5-1）, water inlet pipe（5）, wastewater influent pump（20）, evacuation port（5-2）Connection, the first dosing pump
（21）, the second dosing pump（22）Delivery port and reactor（3）Water inlet connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711354118.4A CN107827222A (en) | 2017-12-15 | 2017-12-15 | A kind of sewage water treatment method and equipment of magnetic three-phase Fenton reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711354118.4A CN107827222A (en) | 2017-12-15 | 2017-12-15 | A kind of sewage water treatment method and equipment of magnetic three-phase Fenton reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107827222A true CN107827222A (en) | 2018-03-23 |
Family
ID=61644672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711354118.4A Pending CN107827222A (en) | 2017-12-15 | 2017-12-15 | A kind of sewage water treatment method and equipment of magnetic three-phase Fenton reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107827222A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941175A (en) * | 2018-07-10 | 2018-12-07 | 东莞帆生态研究院有限公司 | Soil pollution processing method and soil pollution processing unit |
| CN109534566A (en) * | 2018-12-20 | 2019-03-29 | 合肥职业技术学院 | A kind of ultrasonic wave photocatalysis apparatus and its method for handling Organic Pollutants In Water |
| CN113044950A (en) * | 2021-03-11 | 2021-06-29 | 中国矿业大学(北京) | Heterogeneous Fenton reactor |
| CN114014433A (en) * | 2021-11-23 | 2022-02-08 | 山东华城城建设计工程有限公司 | Fenton fluidized bed and application thereof in treatment of refractory wastewater |
| CN115536186A (en) * | 2021-06-30 | 2022-12-30 | 中国石油化工股份有限公司 | Method and device for treating wastewater containing phosphorus and chlorobenzene |
| CN117509876A (en) * | 2023-12-13 | 2024-02-06 | 浙江建投环保工程有限公司 | Sewage treatment device based on magnetic Fenton technology |
| CN117509876B (en) * | 2023-12-13 | 2024-10-29 | 浙江建投环保工程有限公司 | Sewage treatment device based on magnetic Fenton technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437502A (en) * | 2014-12-15 | 2015-03-25 | 南京理工大学 | Magnetic fenton catalyst spinel ferrite employing fenton iron sludge as iron source and application of magnetic fenton catalyst spinel ferrite |
| CN104773808A (en) * | 2015-04-14 | 2015-07-15 | 河海大学 | Magnetic-Fenton method for treating nondegradable organic wastewater |
| CN105712464A (en) * | 2016-04-27 | 2016-06-29 | 河北协同环保科技股份有限公司 | Fenton-like technique and reactor for treating biochemical effluent |
| CN106698339A (en) * | 2016-11-25 | 2017-05-24 | 中国科学院工程热物理研究所 | Device for dehydrogenating liquid organic hydride |
-
2017
- 2017-12-15 CN CN201711354118.4A patent/CN107827222A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437502A (en) * | 2014-12-15 | 2015-03-25 | 南京理工大学 | Magnetic fenton catalyst spinel ferrite employing fenton iron sludge as iron source and application of magnetic fenton catalyst spinel ferrite |
| CN104773808A (en) * | 2015-04-14 | 2015-07-15 | 河海大学 | Magnetic-Fenton method for treating nondegradable organic wastewater |
| CN105712464A (en) * | 2016-04-27 | 2016-06-29 | 河北协同环保科技股份有限公司 | Fenton-like technique and reactor for treating biochemical effluent |
| CN106698339A (en) * | 2016-11-25 | 2017-05-24 | 中国科学院工程热物理研究所 | Device for dehydrogenating liquid organic hydride |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941175A (en) * | 2018-07-10 | 2018-12-07 | 东莞帆生态研究院有限公司 | Soil pollution processing method and soil pollution processing unit |
| CN108941175B (en) * | 2018-07-10 | 2023-11-03 | 东莞一帆生态研究院有限公司 | Soil pollution treatment method and soil pollution treatment device |
| CN109534566A (en) * | 2018-12-20 | 2019-03-29 | 合肥职业技术学院 | A kind of ultrasonic wave photocatalysis apparatus and its method for handling Organic Pollutants In Water |
| CN113044950A (en) * | 2021-03-11 | 2021-06-29 | 中国矿业大学(北京) | Heterogeneous Fenton reactor |
| CN115536186A (en) * | 2021-06-30 | 2022-12-30 | 中国石油化工股份有限公司 | Method and device for treating wastewater containing phosphorus and chlorobenzene |
| CN114014433A (en) * | 2021-11-23 | 2022-02-08 | 山东华城城建设计工程有限公司 | Fenton fluidized bed and application thereof in treatment of refractory wastewater |
| CN114014433B (en) * | 2021-11-23 | 2023-09-01 | 山东华城工程技术有限公司 | Fenton fluidized bed and application thereof in refractory wastewater treatment |
| CN117509876A (en) * | 2023-12-13 | 2024-02-06 | 浙江建投环保工程有限公司 | Sewage treatment device based on magnetic Fenton technology |
| CN117509876B (en) * | 2023-12-13 | 2024-10-29 | 浙江建投环保工程有限公司 | Sewage treatment device based on magnetic Fenton technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107827222A (en) | A kind of sewage water treatment method and equipment of magnetic three-phase Fenton reactor | |
| CN106277589B (en) | A kind of system and method using iron carbon Fenton pretreatment-UBF-A/O processing waste water from dyestuff | |
| CN110372085A (en) | A kind of organic wastewater catalytic ozonation processing system and method | |
| CN105481177A (en) | Low-consumption nitrification and denitrification coal chemical wastewater advanced treatment device | |
| CN206512041U (en) | A kind of device of two-stage gradient ozone catalytic fluidized bed deep treatment biochemical tail water | |
| CN106746034A (en) | A kind of device and method of two-stage gradient ozone catalytic fluidized bed deep treatment biochemical tail water | |
| CN107879472A (en) | A kind of sewage-treatment plant and method | |
| CN107698094A (en) | A kind of composite catalytic oxidation coupled biological filter tank wastewater treatment integrating device and method | |
| CN107055860A (en) | A kind of multidimensional multiphase Fenton sewage disposal systems and its application | |
| CN208916893U (en) | A kind of catalytic ozonation stirring reactor | |
| CN107344794A (en) | Phenol wastewater qualified discharge processing system | |
| CN210286990U (en) | Organic sewage and waste gas integrated treatment device | |
| CN205387496U (en) | Gradient ozone catalytic oxidation device | |
| CN208916960U (en) | A kind of Fenton oxidation device | |
| CN214457093U (en) | High-efficiency ozone catalytic oxidation reactor | |
| CN207267831U (en) | A kind of device of dyeing waste water advanced treating | |
| CN206417941U (en) | A kind of multidimensional multiphase Fenton sewage disposal systems | |
| CN213141524U (en) | Synergistic mixed ozone catalytic oxidation sewage treatment system | |
| CN107673543A (en) | The processing method of phenol wastewater | |
| CN108275848A (en) | A kind of wastewater treatment integrating device and method | |
| CN103011527A (en) | Enhanced oxidation-MBR (membrane bioreactor) treatment method of caprolactam production wastewater | |
| CN108383335A (en) | High-concentration organic wastewater treatment system and method | |
| CN209957611U (en) | Advanced treatment device for biodegradable wastewater | |
| CN208667385U (en) | A kind of wastewater treatment integrating device | |
| CN207903971U (en) | A kind of sewage disposal device of magnetism three-phase Fenton reactor |
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 |