CN208857062U - A kind of removal device of waste water phosphite - Google Patents
A kind of removal device of waste water phosphite Download PDFInfo
- Publication number
- CN208857062U CN208857062U CN201820328415.5U CN201820328415U CN208857062U CN 208857062 U CN208857062 U CN 208857062U CN 201820328415 U CN201820328415 U CN 201820328415U CN 208857062 U CN208857062 U CN 208857062U
- Authority
- CN
- China
- Prior art keywords
- waste water
- water
- phosphite
- tank
- electrolysis reaction
- 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.)
- Active
Links
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model belongs to field of waste water treatment, is related to a kind of removal device of waste water phosphite.The removal device includes passing through the sequentially connected conditioning tank of pipeline, three-dimensional electrolysis reaction tank and coagulative precipitation tank.The removal device mainly passes through the phosphite in the effect removal waste water of three-dimensional electrolysis reaction tank.Waste water enters three-dimensional electrolysis reaction tank after the adjustment effect of conditioning tank, and three-dimensional electrolysis reaction is carried out in three-dimensional electrolysis reaction tank, and three-dimensional electrolysis reaction process finally generates precipitating；By coagulative precipitation tank by waste water colloidal state impurity and suspended particulate removal be purified water, so that the phosphorus content in waste water is reached the discharge standard of national regulation.Further, the device of the removal device is simple, easily precisely manipulation, and occupied area is small, and maintenance cost is low, and the removal rate of the phosphite in waste water is high.The operation stability of the removal device of waste water phosphite is high, and the phosphite in the waste water of different quality water can be effectively treated.
Description
Technical field
The utility model belongs to technical field of waste water processing, and the removal more particularly to a kind of waste water phosphite fills
It sets.
Background technique
The industries such as surface treatment, pesticide synthesis and industrial chemicals synthesis can often generate the industrial wastewater containing phosphite.Such as
Nickel chemical plating technology in surface treatment, the sodium hypophosphite of strong reducing property, which restores nickel ion, to be formed nickel-phosphorus alloy and is deposited on plating piece
Surface achievees the effect that wear resistant corrosion resistant, hypophosphites itself are oxidized to phosphite.Due to the stability of chemical nickel-plating liquid
Difference, usually using 3-9 cycle will aging scrap, to generate chemical nickel plating waste solution.Chemical nickel plating waste solution ingredient is multiple
It is miscellaneous, mainly contain the phosphorous acid of the nickel ion (with complex state presence) of 3-20g/L, the hypophosphites of 6-20g/L, 80-200g/L
Pollutants (Wang Wei, the Liu Guichang .Ca such as salt, organic matter and other micro metal impurities2+、Fe3+Precipitation and separation HPO3 2-With
H2PO2 -Research [J] Chemical Industry in Guangzhou, 2010,38 (8): 109-111.).For another example the intermediate double of pesticide herbicide glyphosate is sweet
In phosphine (iminodiacetic acid) synthesis technology, often it is with formaldehyde, diamino oxalic acid sodium salt, hydrochloric acid, phosphorous acid or phosphorus trichloride
Synthesis material.In order to save production cost, excessive hydrochloric acid, phosphorous acid or phosphorus trichloride would generally be added in actual production and is come
The conversion ratio of iminodiacetic acid is improved, (Chen Jiuling pmida is useless containing a certain amount of phosphite to make to produce in waste water
Water Producing reason and the utilization Anhui [J] chemical industry, 2013,39 (5): 60-62.).In acrylamide monomer synthesis technology, adopt
Reacted under the action of simple substance copper catalyst with acrylonitrile and water and generate acrylamide, in copper catalytic hydration, sodium hypophosphite with
Copper sulphate reaction generates copper hydride, and sodium hypophosphite itself is oxidized to sodium phosphite, and subsequent copper hydride is in sodium hydroxide
It under effect, is decomposed and generates copper catalyst, the waste water main component generated during this is sodium phosphite and sodium sulphate (Zhao Peng
Fly chemical method acrylamide copper catalyst technology of preparing and summarizes [J] China Chemical Industry trade, 2014,6 (22): 115.).Thus may be used
See, waste water phosphite it is from a wealth of sources, firstly, a large amount of presence of phosphite cause total phosphorus content in waste water exceeded, from
And easily cause water eutrophication；Secondly as phosphite has reproducibility, easily leading to waste water has higher CODCr；Most
Afterwards, phosphite has certain bacteriostasis, if arbitrarily discharge can consume the dissolved oxygen in ambient water, thus deteriorate water quality,
The living environment of aquatic animals and plants seriously is destroyed, while serious influence will also result on the life of the mankind.
Existing patent document mostly uses electroosmose process, anion exchange method of reproduction or oxidation chemistry precipitation method etc. to remove waste water
In phosphite.Electroosmose process is the orthophosphite selectivity under the electric field force effect of electrode, in solution through ion
Exchange membrane, so that the orthophosphite in solution is removed, such as document " electrodialysis of glyphosate mother solution UF membrane pre-processes " (environment work
Journey journal) orthophosphite of the proposition in electroosmose process processing glyphosate mother solution, the removal rate of orthophosphite is 40%, electrodialysis
Method can effectively remove the harmful ion in glyphosate mother solution, reduce pollutant emission, have good environment benefit.But electrodialysis
The equipment investment of method use, operation and maintenance cost are higher, and treatment effect is bad when waste liquid phosphorous acid salinity is higher.
Anion exchange method of reproduction is to be handed over the orthophosphite ions in the exchange ion and waste liquid in resin using ion
It changes, the method for removing the orthophosphite ions in waste liquid, if document is " the phosphite method in separation chemistry nickel-plating waste liquid
Research " (Ha Erbing polytechnical university) has the anion exchange resin of fine selectivity to orthophosphite using a kind of pair of orthophosphite
It is removed, by the service life of chemical nickel-plating liquid by 10 original cycle stretch-outs to 22 periods.At anion exchange method of reproduction
Physicochemical nickel-plating waste liquid, high degree of automation are easy to operate, hence it is evident that the orthophosphite in removal chemical nickel plating waste solution, but throw
Provide expensive, processing capacity is smaller.
The metal ions such as orthophosphoric acid root and calcium, iron, aluminium can be formed and be precipitated based on chemical precipitation method, and the Asia of complex state
The metal ion binding capacities such as phosphate radical and calcium, iron, aluminium are poor, are not easy to form precipitating removal, the oxidation chemistry precipitation method are in chemistry
The orthophosphite in waste water is oxidized to orthophosphoric acid with oxidants such as sodium hypochlorite, hydrogen peroxide or ozone on the basis of the precipitation method
Root, then orthophosphoric acid root is precipitated with precipitating reagents such as calcium salt, molysite or aluminium salts and is removed.Such as Chinese utility model patent (application number
CN201410478530.7 a kind for the treatment of method for wastewater containing high-concentration phosphite) is disclosed, proposes to use three-level dephosphorization, lead to
It crosses and adds precipitating reagent combination ozone oxidation and effectively remove orthophosphite in waste water；Though the oxidation chemistry precipitation method can be removed or be recycled
Phosphite in waste water, but there are oxidation of phosphite not exclusively and the halfway problem of processing；Meanwhile oxidation chemistry precipitates
Method need to consume a large amount of oxidant and chemical precipitation agent, cause cost for wastewater treatment high, and generation sludge quantity is big, can generate to waste water
Secondary pollution.
To solve problems, the method by taking three-dimensional electrolysis as an example is gradually appeared, the method is that substitution tradition is added directly
The method of oxidant and chemical precipitation agent directly generates oxidant by three-dimensional electrolysis, and orthophosphite is oxidized to orthophosphoric acid root,
Orthophosphoric acid root and metal ion are then formed into precipitating removal.Such as Chinese utility model patent (application number
CN201720033553.6 the processing system that chemical nickle-plating wastewater pollutant is effectively reduced) is disclosed, proposes to use three-dimensional electrolysis
The phosphite in waste water can be effectively treated in conjunction with electric flocculation and the method for adding dephosphorization agent.For another example Chinese utility model patent
(application number CN201710155570.1) discloses the method and processing system of phosphorus and nickel in removal chemical nickle-plating wastewater, proposes to adopt
The phosphite in waste water can be effectively removed with the method that three-dimensional electrolysis combines dual oxidation and multiple coagulation, principle be by
After oxidation of phosphite is at orthophosphates, orthophosphates forms precipitating removal with metal ion again.But above two method is deposited
It is adjusted need to repeatedly add acid-base modifier, multiple dosing coagulant coagulating sedimentation causes whole technique very complicated, handles
Increased costs.In addition, the oxidant that three-dimensional electrolysis generates directly adds the effect of oxidant instead of tradition, being unable to satisfy will be sub-
The effect of phosphate radical exhaustive oxidation removal, the phosphorus that cannot continually and steadily remove in waste water make standard water discharge.
Therefore, for deficiency present in the method for removing phosphite in above-mentioned waste water, it is badly in need of inventing a kind of new give up
The minimizing technology of water phosphite, this method can improve the phosphite removal rate in waste water, while treatment process is simple
And processing cost can be reduced.
Utility model content
The technical problem to be solved by the utility model is to the removal device for the phosphite in existing waste water exists
Complex treatment process the technical issues of, a kind of removal device of waste water phosphite is provided.
In order to solve the above technical problems, the utility model embodiment provides a kind of removal dress of waste water phosphite
It sets, including passes through the sequentially connected conditioning tank of pipeline, three-dimensional electrolysis reaction tank and coagulative precipitation tank.
It is mainly anti-by three-dimensional electrolysis according to the removal device of waste water phosphite provided by the embodiment of the utility model
Phosphite in the effect removal waste water of Ying Chi.Waste water enters three-dimensional electrolysis reaction tank after the adjustment effect of conditioning tank,
Three-dimensional electrolysis reaction is carried out in three-dimensional electrolysis reaction tank, and the hydroxyl radical free radical of high activity can be generated in three-dimensional electrolysis reaction process
With nascent state metal ion, hydroxyl radical free radical activates the orthophosphite contact break in waste water, the orthophosphite after activation and new life
State metal ion forms precipitating；Finally by coagulative precipitation tank by waste water colloidal state impurity and suspended particulate removal be purified
Water makes the phosphorus content in waste water reach the discharge standard of national regulation.
The device of the removal device of the waste water phosphite is simple, easily precisely manipulation, and occupied area is small, maintenance cost
Low, the removal rate of the phosphite in waste water is high.The operation stability of the removal device of waste water phosphite is high, can be effective
The phosphite in the waste water of different quality water is handled, and the device can make the phosphorus content in waste water reach the row of national regulation
Put standard.
Optionally, the first evenly mixing device and water inlet are equipped in the conditioning tank.
Optionally, water pump is equipped between the conditioning tank and the three-dimensional electrolysis reaction tank.
Optionally, aerator, water-distributing device and electrolytic cell, the aeration dress are equipped with inside the three-dimensional electrolysis reaction tank
It is set in the bottom of the three-dimensional electrolysis reaction tank, the water-distributing device is located at the upper layer of the aerator, the electrolytic cell
It is located at the upper layer of the water-distributing device；
The outside of the three-dimensional electrolysis reaction tank is equipped with air pump and DC power supply, the aerator and the air pump
Connection, the water-distributing device are connect with the water pump, and the electrolytic cell includes cathode electrode plate, anode electrode plate and catalytic filler
Area, the catalytic filler area are located between the cathode electrode plate and the anode electrode plate, the cathode electrode plate and described
Anode electrode plate is electrically connected with the DC power supply.
Optionally, the coagulative precipitation tank is equipped with triangle mud-sinking area, the second evenly mixing device, coagulant dosage device and water outlet
Mouthful, the triangle mud-sinking area is located at the bottom of the coagulative precipitation tank, and the water outlet is located at the upper layer of the coagulative precipitation tank,
The triangle mud-sinking area is equipped with filter press.
Optionally, first evenly mixing device is blender, aeration tube or circulating pump, and second evenly mixing device is stirring
Device, aeration tube or circulating pump.
Detailed description of the invention
Fig. 1 is the schematic diagram of the removal device for the waste water phosphite that an embodiment of the present invention provides；
Fig. 2 is another schematic diagram of the removal device for the waste water phosphite that an embodiment of the present invention provides；
Fig. 3 is the process flow chart of the minimizing technology for the waste water phosphite that an embodiment of the present invention provides.
Appended drawing reference in specification is as follows:
1, conditioning tank；11, the first evenly mixing device；12, water inlet；
2, water pump；
3, three-dimensional electrolysis reaction tank；31, aerator；32, water-distributing device；33, electrolytic cell；331, cathode electrode plate；
332, anode electrode plate；333, catalytic filler area；334, the first perforated plastic plate；335, the second perforated plastic plate；
4, air pump；
5, DC power supply；
6, coagulative precipitation tank；61, triangle mud-sinking area；62, the second evenly mixing device；63, coagulant dosage device；64, filters pressing
Machine；65, water outlet.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
In conjunction with accompanying drawings and embodiments, the utility model is described in further detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
As shown in Figure 1, the removal device for the waste water phosphite that an embodiment of the present invention provides, including pass through pipe
The sequentially connected wastewater equalization pond 1 in road, three-dimensional electrolysis reaction tank 3 and coagulative precipitation tank 6.
The removal device of the waste water phosphite mainly passes through the Asia in the effect removal waste water of three-dimensional electrolysis reaction tank 3
Phosphate.Waste water enters three-dimensional electrolysis reaction tank 3 after the adjustment effect of conditioning tank 1, carries out in three-dimensional electrolysis reaction tank 3
Three-dimensional electrolysis is reacted, and the hydroxyl radical free radical and nascent state metal ion of high activity, hydroxyl can be generated in three-dimensional electrolysis reaction process
Free radical activates the orthophosphite contact break in waste water, and the orthophosphite after activation and nascent state metal ion are formed and precipitated；Most
Afterwards by coagulative precipitation tank 6 by waste water colloidal state impurity and suspended particulate removal be purified water, make the phosphorus content in waste water
Reach the discharge standard of national regulation.
The device of the removal device of the waste water phosphite is simple, easily precisely manipulation, and occupied area is small, maintenance cost
Low, the removal rate of the phosphite in waste water is high.The operation stability of the removal device of waste water phosphite is high, can be effective
The phosphite in the waste water of different quality water is handled, and the device can make the phosphorus content in waste water reach the row of national regulation
Put standard.
As shown in Figure 1, in one embodiment, the first evenly mixing device 11 and water inlet 12 are equipped in the conditioning tank 1.It is described
First evenly mixing device 11 is blender, aeration tube or circulating pump.After waste water enters conditioning tank 1, pass through the first evenly mixing device 11
Effect is so that waste water achievees the effect that homogeneous average.
As shown in Figure 1, in one embodiment, water pump 2 is equipped between the conditioning tank 1 and the three-dimensional electrolysis reaction tank 3.
Waste water in conditioning tank 1 enters in three-dimensional electrolysis reaction tank 3 by the effect of water pump 2.
As shown in Figure 1, in one embodiment, aerator 31, water-distributing device are equipped with inside the three-dimensional electrolysis reaction tank 3
32 and electrolytic cell 33, the aerator 31 be located at the bottom of the three-dimensional electrolysis reaction tank 3, the water-distributing device 32 is located at institute
The upper layer of aerator 31 is stated, the electrolytic cell 33 is located at the upper layer of the water-distributing device 32.The three-dimensional electrolysis reaction tank 3
Outside is equipped with air pump 4 and DC power supply 5, and the aerator 31 is connect with the air pump 4, the water-distributing device 32 and institute
The connection of water pump 2 is stated, the electrolytic cell 33 includes cathode electrode plate 331, anode electrode plate 332 and catalytic filler area 333, described to urge
Change packing area 333 to be located between the cathode electrode plate 331 and the anode electrode plate 332, the cathode electrode plate 331 and institute
Anode electrode plate 332 is stated to be electrically connected with the DC power supply 5.
Three-diemsnional electrode is formed between anode electrode plate 332, cathode electrode plate 331 and catalytic filler area 333, it is effective to increase
Electrode specific surface area and increase substance movement speed, can effectively improve the electrolytic efficiency of waste water.Waste water after adjusting is from three
The bottom for tieing up cell reaction pond 3 enters, and by 32 water distribution uniformity of water-distributing device, introduces air into aerator by air pump 4
Waste water is aerated in 31, so that waste water is come into full contact with generation three-dimensional electrolysis with three-diemsnional electrode in electrolytic cell 33 and reacts, it is three-dimensional
The reaction time of cell reaction is 0.5h~6h.
After entering electrolytic cell 33 hydroxyl radical free radical that three-dimensional electrolysis reaction generates high activity, three-dimensional electrolysis reaction occur for waste water
Reaction equation be (Mred be the metallic catalyst of reduction-state, the metallic catalyst of Mox expression oxidation state):
O2+2H++2e→H2O2 (1)
H2O2+Mred→Mox+OH-+·OH (2)
Mox+e→Mred (3)
It is reacted by three-dimensional electrolysis, in electrode surface the Strong oxdiative that two electronic reduction reactions generate occurs for the oxygen in air
The Mred of reduction-state is oxidized to the Mox of oxidation state by agent hydrogen peroxide, dioxygen water energy, meanwhile, make to generate in system a large amount of high living
Property hydroxyl radical free radical.
In one embodiment, the cathode electrode plate 331 is titanium coating electrode plate, stainless steel plate, carbon fiber board or graphite
Plate, the anode electrode plate 332 are titanium coating electrode plate, stainless steel plate, carbon fiber board or graphite plate.
In one embodiment, catalytic filler is filled in the catalytic filler area 333, the catalytic filler includes following matter
Measure the component of content: iron-bearing materials 25%-75%, carbonaceous material 10%-50%, aluminium-containing material 2%-20%, material containing magnesium
Material is 1%-10%, copper-bearing materials 0.1%-1%, trace meter 0.1ppm-10ppm, adhesive 2%-5%, pore-creating
Agent is 2%-5%.
The catalytic filler can promote hydroxyl radical free radical and nascent state metal cations Fe2+、Fe3+、Mg2+、Al3+Generation, together
When, copper-bearing materials and trace meter can improve the formation efficiency of hydroxyl radical free radical, and the hydroxyl radical free radical of strong oxidizing property can be effective
Orthophosphite contact break is activated, the orthophosphite of activation easily with the metal cations Fe of nascent state2+、Fe3+、Mg2+、Al3+It is heavy to generate
It forms sediment, to remove phosphite, improves the efficiency of the phosphite in catalytic filler removal waste water.
Trace meter palladium can accelerate iron-bearing materials in filler, the release containing magnesium material and aluminium-containing material, cause to produce in solution
The metal cations Fe of raw a large amount of nascent states2+、Fe3+、Mg2+、Al3+, the hydroxyl radical free radical of the high activity of generation can be by the Asia of stable state
Phosphate radical contact break activation, the metal cations Fe of nascent state2+、Fe3+、Mg2+、Al3+Can generation be reacted with the orthophosphite of activation rapidly
Phosphorous acid metal salt precipitate.In addition, the phosphorous acid metal salt precipitate generated is a kind of good flocculant, it can be by the glue in waste water
State impurity and suspended particle absorbing control flocculation.
The catalytic filler the preparation method comprises the following steps: by the iron-bearing materials, carbonaceous material, aluminium-containing material, containing magnesium material, contain
Copper product, trace meter, adhesive and pore creating material are uniformly mixed according to ratio, and water stirring ageing is added and forms mixture, then
The mixture is granulated to obtain catalytic filler green body through pelletizer, will be roasted after catalytic filler green body drying, most
It is cooling up to catalytic filler afterwards.The addition quality of the water be the catalytic filler quality 3%-9%, the ageing when
Between be 10min-25min, the partial size of the catalytic filler green body is 20-40mm, and the shape of the catalytic filler green body is sawtooth
Shape, olive-shaped or ball-type etc., the temperature of the drying are 100 DEG C -120 DEG C, and the time of the drying is 1h-2h, the roasting
Temperature be 900 DEG C -1200 DEG C, the calcining time be 1h-3h.
It can promote hydroxyl radical free radical and nascent state metal cations Fe by catalytic filler prepared by this method2+、Fe3+、Mg2+、
Al3+Generation, meanwhile, copper-bearing materials and trace meter can improve the formation efficiency of hydroxyl radical free radical, the hydroxyl of strong oxidizing property from
Effectively orthophosphite contact break can be activated by base, the orthophosphite of activation easily with the metal cations Fe of nascent state2+、Fe3+、Mg2 +、Al3+Precipitating is generated, to remove phosphite, improves the efficiency of the phosphite in catalytic filler removal waste water.
In one embodiment, the iron-bearing materials include one of reduced iron powder, iron filings and Iron concentrate or a variety of, described
Carbonaceous material includes one of activated carbon, graphite and coal coke or a variety of, and the aluminium-containing material includes in kaolin and aluminium powder
It is one or more, it is described containing magnesium material include one of magnesia, magnesium chloride and magnesium sulfate or a variety of, the copper-bearing materials
Including one of copper oxide, copper chloride and copper sulphate or a variety of, the trace meter includes one of palladium, platinum, manganese and chromium
Or it is a variety of, described adhesive includes one of bentonite, clay and sodium metasilicate or a variety of, the pore creating material include Boratex,
One of sodium carbonate and hydroxypropyl methyl cellulose are a variety of.
As shown in Fig. 2, in a preferred embodiment, the electrolytic cell 33 further includes the first perforated plastic plate 334 and second
Perforated plastic plate 335, the first perforated plastic plate 334 be located at the cathode electrode plate 331 and the catalytic filler area 333 it
Between, the second perforated plastic plate 335 is located between the anode electrode plate 332 and the catalytic filler area 333.The catalysis
The partial size of filler is greater than the aperture of perforation 334 on the first perforated plastic plate, and is greater than on the second perforated plastic plate and perforates 335
Aperture.First perforated plastic plate 334 and the second perforated plastic plate 335 can prevent catalytic filler from passing through perforation and cathode electrode plate
331 and anode electrode plate 332 directly contact formation short circuit, but will not prevent again catalytic filler area 333 waste water and cathode electricity
Pole plate 331 and anode electrode plate 332 contact；In addition, the first perforated plastic plate 334 is located at cathode electrode plate 331 and catalytic filler
Between area 333, it is capable of fixing cathode electrode plate 331, the second perforated plastic plate 335 is located at anode electrode plate 332 and catalytic filler
Between area 333, it is capable of fixing anode electrode plate 332.
In one embodiment, the coagulative precipitation tank 6 is equipped with triangle mud-sinking area 61, the second evenly mixing device 62, coagulant throwing
Feeder apparatus 63 and water outlet 65, the triangle mud-sinking area 61 are located at the bottom of the coagulative precipitation tank 6, and the water outlet 65 is located at
The upper layer of the coagulative precipitation tank 6, the triangle mud-sinking area 61 are equipped with filter press 64.
Waste water after three-dimensional electrolysis is reacted, becomes the phosphorus containing components in waste water substantially in three-dimensional electrolysis reaction tank 3
Waste water is introduced into coagulative precipitation tank 6 by overflow manner, passes through coagulant dosage device 63 by agglutination substance and suspended particulate
Coagulant is added, reacts precipitating and colloid substance in waste water with coagulant,
Assemble colloidal state impurity in waste water and suspended particulate constantly to become larger by staticly settling, formed the bigger colloid substance of specific gravity and
Suspended particulate, by triangle mud-sinking area 61 it is heavy after, by filter press 64 by waste water colloid substance and suspended particulate arrange
Out, thus supernatant after obtaining dephosphorization, supernatant is by the discharge of water outlet 65 of coagulative precipitation tank 6 to get to meeting state
The purified water of family's discharge standard.
In one embodiment, second evenly mixing device 62 is blender, aeration tube or circulating pump.
As shown in figure 3, waste water phosphite corresponding to the removal device of waste water phosphite as described above
Minimizing technology, including following operating procedure:
Adjustment process makes the waste water imported in the conditioning tank 1 reach homogeneous average by evenly mixing device；
Waste water through overregulating is imported the three-dimensional electrolysis reaction tank 3, carries out three-dimensional electrolysis by three-dimensional electrolysis reaction process
Reaction；
Precipitation process of coagulation, the waste water by three-dimensional electrolysis reaction imports the coagulative precipitation tank 6, in the coagulating sedimentation
Dosing coagulant in pond 6 is purified water after carrying out coagulating sedimentation under stirring.
The minimizing technology of waste water phosphite provided by the utility model, the main work for passing through three-dimensional electrolysis reaction process
With the phosphite in removal waste water.Waste water enters three-dimensional electrolysis reaction tank 3 after the adjustment effect of conditioning tank 1, in three-dimensional
Three-dimensional electrolysis reaction is carried out in cell reaction pond 3, and the hydroxyl radical free radical of high activity and new can be generated in three-dimensional electrolysis reaction process
Ecological metal ion, hydroxyl radical free radical activate the orthophosphite contact break in waste water, the orthophosphite after activation and nascent state gold
Belong to ion and forms precipitating；Finally by coagulative precipitation tank 6 by waste water colloidal state impurity and suspended particulate removal be purified water,
The phosphorus content in waste water is set to reach the discharge standard of national regulation.
This method is easy to operate, and operating procedure is less, and the condition control in operating process is loose；Meanwhile this method is whole
Gymnastics is less during making to use chemical reagent, so that the amount of the colloidal state impurity and suspended particulate that finally generate is less, reduces two
Secondary pollution, reduces the cost of processing waste water, and can achieve the purpose that efficient dephosphorization.
In a certain embodiment, coagulant is added in the precipitation process of coagulation, is stirred and stands after coagulant is added
Precipitating, the coagulant are one of polyaluminium sulfate, bodied ferric sulfate or polyacrylamide, the additional amount of the coagulant
For 0.01~1g/L, the mixing time is 10~30min, described to staticly settle the time as 10~30min.
The effect of each step of the minimizing technology of waste water phosphite and method are corresponding to the above device, no longer superfluous herein
It states.
Chemical raw material used in the utility model is commercially available, and coagulant is common medicament, other realizations are of the same race
The flocculant of function also should include within the protection scope of the present utility model.
The method of wastewater test total phosphorus: taking 8mL solution to be measured, and 1mL potassium persulfate solution is added and is adding after mixing
In 120 DEG C of resolution 30min in heat resolution instrument, air cools down 2min, and the water-bath cooling 2min in cooling bath is then sequentially added
1mL LH-P1 reagent and 1mL LH-P2 reagent, shake up, and stand 10min, are finally putting into total phosphorus test equipment and are detected, i.e.,
Measure the total phosphorus value of waste water.
With reference to embodiments, the utility model is described in further detail.It should be appreciated that described herein
Specific embodiment is only used to explain the utility model, is not used to limit the utility model.
Embodiment 1
By 45% Iron concentrate, 23.8% graphite, 15% aluminium powder, 8% magnesium powder, 4% bentonite, 4% hydroxypropyl methyl fiber
Element, 0.2% copper oxide and 5ppm palladium powder are uniformly mixed according to ratio, be added 5% water of the quality that quality is catalytic filler after
Mixture, is then granulated by continuous stirring ageing 10min through pelletizer, the ball-shaped filling material green body that partial size is 20mm is obtained, by filler
Green body, which is placed at 100 DEG C, dries 2h, finally fills out under the protection of nitrogen after 1000 DEG C of roasting 3h, natural cooling up to catalysis
Material.
Three-dimensional electrolysis reaction treatment chemical nickle-plating wastewater is carried out with this catalytic filler, the total phosphorus content tested in waste water is
3867mg/L imports the waste water in conditioning tank after overregulating in three-dimensional electrolysis reaction tank, and aeration three-dimensional electrolysis reacts 6h,
Waste water imports in coagulative precipitation tank after completing three-dimensional electrolysis reaction and carries out coagulating sedimentation, and it is (poly- that PAM is added in coagulative precipitation tank
Acrylamide) 0.05g/L, stirs (coagulation time) 20min, then stand 20min, the supernatant after standing is arranged by water outlet
Out, the body refuse of generation is discharged by filter press, and the content for testing total phosphorus in purified water is 0.8mg/L.
Embodiment 2
By 48% iron filings, 18.5% active carbon, 18% kaolin, 7% magnesium chloride, 5% bentonite, 3% Boratex,
0.5% copper oxide and 7ppm manganese powder are uniformly mixed according to ratio, and 6% water that the quality that quality is catalytic filler is added continues to stir
Ageing 15min is mixed, is then granulated mixture through pelletizer, the ball-shaped filling material green body that partial size is 25mm is obtained, by filler green body
Be placed at 100 DEG C and dry 2h, finally under the protection of nitrogen after 1010 DEG C of roasting 2h, natural cooling up to catalytic filler.
Three-dimensional electrolysis reaction treatment chemical nickle-plating wastewater is carried out with this catalytic filler, the total phosphorus content tested in waste water is
2280mg/L imports the waste water in conditioning tank after overregulating in three-dimensional electrolysis reaction tank, and aeration three-dimensional electrolysis reacts 5h,
Waste water imports in coagulative precipitation tank after completing three-dimensional electrolysis reaction and carries out coagulating sedimentation, and it is (poly- that PAM is added in coagulative precipitation tank
Acrylamide) 0.05g/L, stirs (coagulation time) 20min, then stand 20min, the supernatant after standing is arranged by water outlet
Out, the body refuse of generation is discharged by filter press, and the content for testing total phosphorus in purified water is 0.6mg/L.
Embodiment 3
By 42% reduced iron powder, 28.5% coal coke, 14% kaolin, 8% magnesium sulfate, 4% bentonite, 3.5% carbonic acid
Sodium, 0.8% copper chloride and 8ppm chromium powder according to ratio be uniformly mixed, be added quality be catalytic filler quality 3% water after
Mixture, is then granulated by continuous stirring ageing 30min through pelletizer, the ball-shaped filling material green body that partial size is 25mm is obtained, by filler
Green body, which is placed at 200 DEG C, dries 1h, finally under the protection of nitrogen after 900 DEG C of roasting 3h, natural cooling up to catalytic filler.
Three-dimensional electrolysis reaction treatment sodium hypophosphite reduction method, which is carried out, with this catalytic filler prepares copper catalyst synthesis acryloyl
The waste water that amine generates, the total phosphorus content tested in waste water are 1144mg/L, and the waste water in conditioning tank after overregulating is imported
In three-dimensional electrolysis reaction tank, aeration three-dimensional electrolysis reacts 4h, and waste water imports in coagulative precipitation tank after completing three-dimensional electrolysis reaction
Coagulating sedimentation is carried out, PAM (polyacrylamide) 0.04g/L is added in coagulative precipitation tank, stirs (coagulation time) 15min, then
20min is stood, the supernatant after standing is discharged by water outlet, and the body refuse of generation is discharged by filter press, is tested in purified water
The content of total phosphorus is 0.58mg/L.
Embodiment 4
By 50% Iron concentrate, 15% active carbon, 14% aluminium powder, 10% magnesium powder, 5% bentonite, 5% hydroxypropyl methyl fiber
Element, 1% copper sulphate and 4ppm palladium powder are uniformly mixed according to ratio, and 9% water that the quality that quality is catalytic filler is added continues
Mixture, is then granulated by stirring ageing 20min through pelletizer, the ball-shaped filling material green body that partial size is 40mm is obtained, by filler base
Body, which is placed at 120 DEG C, dries 2h, finally under the protection of nitrogen after 1200 DEG C of roasting 1h, natural cooling up to catalytic filler.
Three-dimensional electrolysis reaction treatment sodium hypophosphite reduction method, which is carried out, with this catalytic filler prepares copper catalyst synthesis acryloyl
The waste water that amine generates, the total phosphorus content tested in waste water are 664mg/L, and the waste water in conditioning tank after overregulating is imported three
It ties up in cell reaction pond, aeration three-dimensional electrolysis reacts 1.5h, and waste water imports in coagulative precipitation tank after completing three-dimensional electrolysis reaction
Coagulating sedimentation is carried out, PAM (polyacrylamide) 0.025g/L is added in coagulative precipitation tank, stirs (coagulation time) 15min, then
15min is stood, the supernatant after standing is discharged by water outlet, and the body refuse of generation is discharged by filter press, is tested in purified water
The content of total phosphorus is 0.87mg/L.
Embodiment 5
By 35% iron filings, 28% active carbon, 20% aluminium powder, 10% magnesium powder, 4.6% bentonite, 2% hydroxypropyl methyl fiber
Element, 0.4% copper oxide and 2ppm manganese powder are uniformly mixed according to ratio, be added 7% water of the quality that quality is catalytic filler after
Mixture, is then granulated by continuous stirring ageing 30min through pelletizer, the ball-shaped filling material green body that partial size is 30mm is obtained, by filler
Green body, which is placed at 150 DEG C, dries 1.5h, is finally catalyzed to obtain the final product after 1080 DEG C of roasting 1.5h, natural cooling under the protection of nitrogen
Filler.
Three-dimensional electrolysis reaction treatment pmida production waste water is carried out with this catalytic filler, the total phosphorus content tested in waste water is
1040mg/L imports the waste water in conditioning tank after overregulating in three-dimensional electrolysis reaction tank, and aeration three-dimensional electrolysis reacts 3h,
Waste water imports in coagulative precipitation tank after completing three-dimensional electrolysis reaction and carries out coagulating sedimentation, and it is (poly- that PAM is added in coagulative precipitation tank
Acrylamide) 0.05g/L, stirs (coagulation time) 20min, then stand 30min, the supernatant after standing is arranged by water outlet
Out, the body refuse of generation is discharged by filter press, and the content for testing total phosphorus in purified water is 0.1mg/L.
It is through the foregoing embodiment it is found that very high to the removal rate of the phosphite in various waste water by the above method,
The phosphorus content in waste water is made to have reached the discharge standard of the Phosphorus From Wastewater content of national regulation simultaneously.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (4)
1. a kind of removal device of waste water phosphite, which is characterized in that including passing through the sequentially connected conditioning tank of pipeline, three
Wei electricity Xie Fanyingchi and coagulative precipitation tank；
Water pump is equipped between the conditioning tank and the three-dimensional electrolysis reaction tank；
Aerator, water-distributing device and electrolytic cell are equipped with inside the three-dimensional electrolysis reaction tank, the aerator is located at described
The bottom of three-dimensional electrolysis reaction tank, the water-distributing device are located at the upper layer of the aerator, and the electrolytic cell is located at the cloth
The upper layer of water installations；
The outside of the three-dimensional electrolysis reaction tank is equipped with air pump and DC power supply, and the aerator and the air pump connect
It connects, the water-distributing device is connect with the water pump, and the electrolytic cell includes cathode electrode plate, anode electrode plate and catalytic filler
Area, the catalytic filler area are located between the cathode electrode plate and the anode electrode plate, the cathode electrode plate and described
Anode electrode plate is electrically connected with the DC power supply.
2. the removal device of waste water phosphite according to claim 1, which is characterized in that be equipped in the conditioning tank
First evenly mixing device and water inlet.
3. the removal device of waste water phosphite according to claim 2, which is characterized in that the coagulative precipitation tank is set
There are triangle mud-sinking area, the second evenly mixing device, coagulant dosage device and water outlet, it is heavy that the triangle mud-sinking area is located at the coagulation
The bottom in shallow lake pond, the water outlet are located at the upper layer of the coagulative precipitation tank, and the triangle mud-sinking area is equipped with filter press.
4. the removal device of waste water phosphite according to claim 3, which is characterized in that first evenly mixing device
For blender, aeration tube or circulating pump, second evenly mixing device is blender, aeration tube or circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820328415.5U CN208857062U (en) | 2018-03-09 | 2018-03-09 | A kind of removal device of waste water phosphite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820328415.5U CN208857062U (en) | 2018-03-09 | 2018-03-09 | A kind of removal device of waste water phosphite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208857062U true CN208857062U (en) | 2019-05-14 |
Family
ID=66410323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820328415.5U Active CN208857062U (en) | 2018-03-09 | 2018-03-09 | A kind of removal device of waste water phosphite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208857062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171907A (en) * | 2019-06-17 | 2019-08-27 | 上海交通大学 | A kind of catalyzed internal electrocatalysis filler and preparation method thereof, catalyzed internal electrocatalysis reaction unit, deep purification of waste water system |
-
2018
- 2018-03-09 CN CN201820328415.5U patent/CN208857062U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171907A (en) * | 2019-06-17 | 2019-08-27 | 上海交通大学 | A kind of catalyzed internal electrocatalysis filler and preparation method thereof, catalyzed internal electrocatalysis reaction unit, deep purification of waste water system |
| CN110171907B (en) * | 2019-06-17 | 2020-07-31 | 上海交通大学 | Catalytic internal electrolysis filler and preparation method thereof, catalytic internal electrolysis reaction device and sewage deep purification system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108249644A (en) | A kind of removal device and method of waste water phosphite | |
| Lu et al. | Removing heavy metal ions with continuous aluminum electrocoagulation: A study on back mixing and utilization rate of electro-generated Al ions | |
| CN106830449A (en) | Effectively reduce the method and its processing system of chemical nickle-plating wastewater pollutant | |
| Huang et al. | Comparison investigation on phosphate recovery from sludge anaerobic supernatant using the electrocoagulation process and chemical precipitation | |
| CN206486383U (en) | Effectively reduce the processing system of chemical nickle-plating wastewater pollutant | |
| CN107337301B (en) | A kind of method of the electric Fenton processing waste water of additional hydrogen peroxide | |
| CN101823813B (en) | Method for treating waste water of circuit board production | |
| CN103693788B (en) | A kind of Industrial Waste Water Treatments integrative machine | |
| CN106698764A (en) | Method for removing phosphorus and nickel in electroless nickel-plating wastewater and treatment system | |
| CN206069598U (en) | A kind of wiring board ammonia nitrogen waste water electrochemical reactor processes complexes | |
| CN107098518A (en) | The processing method and processing system of chemical nickle-plating wastewater | |
| Wang et al. | Self-sustained bioelectrical reduction system assisted iron–manganese doped metal-organic framework membrane for the treatment of electroplating wastewater | |
| Che et al. | Pretreatment of piggery digestate wastewater by ferric-carbon micro-electrolysis under alkalescence condition | |
| CN201770522U (en) | Electric flocculation equipment for treating mixed electroplating wastewater | |
| Chen et al. | Phosphate removal from aqueous solution by electrochemical coupling siderite packed column | |
| CN208857062U (en) | A kind of removal device of waste water phosphite | |
| CN101618905A (en) | Method for treating phosphoric wastewater through ozone-enhanced electrocoagulation | |
| CN101723488A (en) | Novel water-treatment medicament based on internal electrolysis principle and preparation method thereof | |
| CN109293074A (en) | The device and method of time phosphorous in a kind of removal chemical nickle-plating wastewater | |
| CN212741066U (en) | Electroplating nickel-containing wastewater treatment device | |
| CN103641208B (en) | A kind of nickeliferous board wastewater combined electrolysis groove treatment process | |
| CN210193483U (en) | Device and system for efficiently removing total nitrogen through iron-carbon catalytic reduction | |
| CN101671068B (en) | Method for iron internal electrolysis treatment of hard-degradation organic wastewater strengthened by magnetic catalyst and used fillings thereof | |
| CN101428922A (en) | Method for dephosphorization from sewage water | |
| CN206915891U (en) | Remove the processing system of phosphorus and nickel in chemical nickle-plating wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |