CN208732873U - A kind of BDP waste water multistage coupling zero-emission water treatment system - Google Patents
A kind of BDP waste water multistage coupling zero-emission water treatment system Download PDFInfo
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- CN208732873U CN208732873U CN201821411054.7U CN201821411054U CN208732873U CN 208732873 U CN208732873 U CN 208732873U CN 201821411054 U CN201821411054 U CN 201821411054U CN 208732873 U CN208732873 U CN 208732873U
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Abstract
The utility model discloses a kind of BDP waste water multistages to couple zero-emission water treatment system, and include following processing module: (1) flotation tank: the flotation tank top is equipped with oil removing cinder notch；(2) visible light catalytic reaction tank: the bottom of pond portion of the visible light catalytic reaction tank tilts down 10~15 ° along water (flow) direction；Bottom is equipped with a nanometer Au/TiO2 catalyst；(3) MBR reaction tank: the MBR reaction tank includes anaerobic zone and aerobic zone；(4) the catalyst partition of inverted L shape ultraviolet catalytic reaction tank: is equipped between the top and water outlet in the ultraviolet catalytic reaction tank；Multiple through-holes are evenly equipped on catalyst partition；(5) MVR enrichment facility: the MVR enrichment facility is respectively equipped with concentrated water outlet and pure water outlet.The utility model develops the near-zero release water treatment system of one kind of multiple technique couplings for BDP waste water, gives full play to the advantage of each module, reaches optimal water treatment efficiency.
Description
Technical field
The utility model relates to the further treatment technique fields of high Biostatic trade effluent with high salt, and in particular to a kind of
BDP waste water multistage couples zero-emission water treatment system.
Background technique
Bisphenol-A-(double diphenyl phosphoesters) abbreviation BDP, is a kind of phosphorus series non-halogen fire retardant, at present modified plastics institute, the country
Fire retardant is greatly still halogen containing flame-retardant, a large amount of pernicious gases can be generated when burning, with environmental consciousness
Enhancing, the demand of such halogen-free flame retardants is more more and more urgent, all due to the compatibility of BDP and high polymer, thermal stability, anti-flammability
Better than common phosphorus flame retardant, therefore the production that was widely used in recent years, but due in its waste water of technological reason containing compared with
More toluene, phenol (sodium phenate), bisphenol-A and a small amount of phosphorus oxychloride and intermediate product, biological inhibition with higher
Property, traditional materialization and biochemical method are difficult to handle, and salinity is higher (containing 1% or so NaCl), further increase
The difficulty of processing.
In recent years, photocatalysis technology became the heat of people's research as a kind of water treatment technology that green high-efficient is stable
Point, and it is increasingly used in sewage treatment field, photocatalysis technology oxidability is strong, and it is applied widely, to pollutant
The no selectivity of degradation, but at present since what the technology was poisoned there is the separation of nanocatalyst difficulty, easily in practical applications asks
Topic, and most TiO is applied at present2Although high-efficient, performance is stablized, and lower to the utilization rate of visible light, these are all
The serious industrialization process for affecting photocatalyst technology.
Summary of the invention
The technical problem to be solved by the utility model is in view of the deficienciess of the prior art, providing one kind of multiple works
The multimode water treatment system of skill coupling, gives full play to the advantage of each module, and mutual cooperative compensating between each module obtains best
Water treatment efficiency, and can reduce energy consumption, save cost BDP waste water multistage coupling zero-emission water treatment system.
In order to solve the above technical problems, the technical solution of the utility model is:
A kind of BDP waste water multistage coupling zero-emission water treatment system, includes following processing module:
(1) flotation tank: the flotation tank top is equipped with oil removing cinder notch.
(2) visible light catalytic reaction tank: the bottom of pond portion of the visible light catalytic reaction tank tilts down 10 along water (flow) direction
~15 °；The visible light catalytic reaction bottom of pond portion is equipped with a nanometer Au/TiO2Catalyst.
(3) MBR reaction tank: the MBR reaction tank includes anaerobic zone and aerobic zone.
(4) inverted L ultraviolet catalytic reaction tank: is equipped between the top and water outlet in the ultraviolet catalytic reaction tank
The catalyst partition of type；Multiple through-holes are evenly equipped on the catalyst partition.
(5) MVR enrichment facility: the MVR enrichment facility is respectively equipped with concentrated water outlet and pure water outlet.
As a kind of improved technical solution, the water treatment system further includes being located at flotation tank sand filter in front
Module；The sand filtration that the sand filter uses is the quartz sand that partial size is 1~3mm.
As a kind of improved technical solution, the nanometer Au/TiO2Catalyst is the load using glass fibre as carrier
Type photochemical catalyst.
As a kind of improved technical solution, the visible light catalytic reaction tank is equipped with LED light secondary light source.
As a kind of improved technical solution, it is equipped with back between the water outlet and water inlet of the visible light catalytic reaction tank
Flow tube, the return pipe are equipped with reflux pump.
As a kind of improved technical solution, the water inlet of the visible light catalytic reaction tank is equipped with cloth sink；It is described
Cloth sink is the dashpot perpendicular to water (flow) direction.
Being equipped with load as a kind of improved technical solution, in the ultraviolet catalytic reaction tank has nano-TiO2Molecule
Sieve bead；The load has nano-TiO2Molecular sieve beads diameter be 1~3mm.
As a kind of improved technical solution, multiple alternately arranged upper spacers are equipped in the ultraviolet catalytic reaction tank
And lower clapboard, there are gap between the upper spacer and the bottom of pond of the ultraviolet catalytic reaction tank, the lower clapboard with it is described
There are gaps between the pond top of ultraviolet catalytic reaction tank, and forming multiple water flows is in the reactive tank that S shape is advanced；The reactive tank
It is equipped with the U-shaped lamp pipe support for fixing ultraviolet lamp tube, multiple ultraviolet lamp tubes are installed in parallel on the U shape tube rack, it is described
Aeration channel is equipped in U-shaped lamp pipe support, the bottom of the U-shaped lamp pipe support is equipped with several aeration openings；The ultraviolet catalytic is anti-
The bottom of pond portion of Ying Chi is equipped with multiple aerators, urging equipped with inverted L shape between the top and water outlet of the multiple lower clapboard
Agent partition.
As a kind of preferred technical solution, the aperture of the through-hole is 0.5~1mm.
As a kind of improved technical solution, comes and be equipped with sewage between the water inlet of first processing module and each module
Pump.
By adopting the above-described technical solution, the beneficial effects of the utility model are:
The utility model is high for ingredients Biogenic inhibition in BDP waste water, difficult to degrade, although salinity with high salt is more single
The characteristics of, develop the near-zero release water treatment system of one kind of multiple technique couplings, including flotation tank module, visible light photocatalysis mould
Block, MBR reaction tank, ultraviolet catalytic reaction tank and MVR enrichment facility give full play to the advantage of each module, phase between each module
Mutually collaboration and complementation, reach optimal water treatment efficiency, not only reduce energy consumption, save cost, and can guarantee high water process effect
Rate.
It is preposition to use air-floating apparatus since toluene water solubility is poor for the residue problem of solvent toluene in BDP waste water,
It is sufficiently separated toluene, therefore reduces postposition photocatalysis and biochemical load, improves treatment effeciency.
Easily be poisoned nanometer powder catalyst in traditional photocatalysis technology, difficult separation aiming at the problem that, the utility model uses
A kind of Au/TiO being carried on glass fibre2As photochemical catalyst, glass fibre string diameter is small, large specific surface area, and corrosion resistant
Erosion ability is strong, high temperature resistant, calcining (inertia protection) regeneration of more convenient later period catalyst, and since plasma resonance is imitated
Answer, catalyst have it is visible light-responded, can directly utilize sunlight.Simultaneously because preposition light-catalysed effect is to reduce sewage
Biostatic, i.e., destroyed by photocatalysis and have virose functional group, therefore do not need photocatalysis depth and thoroughly degrade to have
Machine object saves energy consumption so this module can efficiently reach treatment effect using visible light photocatalysis.
By preposition light-catalysed processing, sewage B/C with higher, the advantage of biochemical treatment be it is at low cost, it is high-efficient,
But to water quality requirement height, therefore photocatalysis and biochemistry have played synergistic effect, and it is at high cost and biochemical to water quality to solve photocatalysis
Demanding problem, this module the utility model use MBR device, compared with traditional biochemical treatment mode, occupied area
Small, biodegrade is high-efficient, and stable effluent quality, power consumption is low, and anti-impact force is strong.
Due to for biochemical mode, when within COD processing to 200, to continue to locate by biological treatment mode
Reason, which just seems, has difficulty in taking a step, and light-catalysed another advantage is exactly that advanced treating ability is strong, and the advanced treating of sewage is to oxygen
It is higher to change Capability Requirement, since visible light photocatalysis is slightly lower compared to oxidability for ultraviolet light photocatalysis technology, this
Utility model selects ultraviolet light catalyst technology after biochemical treatment, and efficiently quickly, in ultraviolet catalytic reaction tank, what is used is urged
Agent, which is negative, is loaded with nano-TiO2Molecular sieve, molecular sieve have stronger absorption property, due to this for COD of sewage handle most
The latter module, it is contemplated that the concentration of later period MVR is more demanding to final water outlet, and carrier adsorption and photocatalysis generate synergistic effect
Further promote treatment effeciency.
Since salinity ingredient is single in BDP sewage, mainly sodium chloride, therefore modules early period are to COD fully degraded
Later, it then can be directly discharged into salt pan by MVR concentration to evaporate brine, pure water directly carries out production reuse, final realization waste water
Near-zero release.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the structural schematic diagram of the utility model ultraviolet catalytic reaction tank.
In figure, 1. sand filters；2. flotation tank；21. the dregs of fat export；3. visible light catalytic reaction tank；31. return pipe；32. time
Stream pump；33. cloth sink；4.MBR reaction tank；5. ultraviolet catalytic reaction tank；51. upper spacer；52. lower clapboard；53. reactive tank；
54. ultraviolet lamp tube；55.U shape tube rack；56. aeration opening；57. aerator；58. catalyst partition；6.MVR enrichment facility；
61. concentrated water exports；62. pure water outlet；7. sewage pump.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is further described.It should be understood that these embodiments are merely to illustrate
The utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, having read in the utility model instruction
After appearance, those skilled in the art can be made various changes or modifications the utility model, and such equivalent forms equally fall within this
Apply for the appended claims limited range.
As depicted in figs. 1 and 2, a kind of BDP waste water multistage couples zero-emission water treatment system, includes following processing module:
Sand filter 1, flotation tank 2, visible light catalytic reaction tank 3, MBR reaction tank 4, ultraviolet catalytic reaction tank 5, MVR enrichment facility 6；
The flotation tank top is equipped with dregs of fat outlet 21.Sewage is equipped between the water inlet and each processing module of the sand filter 1
Pump 7.The bottom of pond portion of the visible light catalytic reaction tank 3 tilts down 10~15 ° along water (flow) direction；The visible light catalytic reaction
Return pipe 31 is equipped between the water outlet and water inlet in pond 3, the return pipe 31 is equipped with reflux pump 32；The visible light catalytic
The water inlet of reaction tank 3 is equipped with cloth sink 33.The cloth sink 33 is the dashpot perpendicular to water (flow) direction.It is described ultraviolet
Multiple alternately arranged upper spacers 51 and lower clapboard 52, the upper spacer 51 and the ultraviolet light are equipped in light-catalyzed reaction pond 5
There are gaps between the bottom of pond of catalysis reaction tank 5, stay between the lower clapboard 52 and the pond top of the ultraviolet catalytic reaction tank 5
There is gap, forms the reactive tank 53 of the S-shaped traveling of multiple water flows；The reactive tank 53 is equipped with for fixing ultraviolet lamp tube 54
U-shaped lamp pipe support 55 is equipped with multiple ultraviolet lamp tubes 54 on the U-shaped lamp pipe support 55 in parallel, is all provided in the U-shaped lamp pipe support 55
There is aeration channel, the bottom of the U-shaped lamp pipe support 55 is equipped with several aeration openings 56；The bottom of pond of the ultraviolet catalytic reaction tank 5
Portion be equipped with multiple aerators 57, between the top and water outlet of the multiple lower clapboard 52 equipped with inverted L shape catalyst every
Plate 58；Multiple through-holes are evenly equipped on the catalyst partition 58；The aperture of the through-hole is 0.5~1mm.
Embodiment 1
(1) sand filter: BDP waste water is first passed around into sand filter and tentatively removes large particulate matter and colloidal type in waste water
Substance, the sand filtration that the sand filter uses are the quartz sand that partial size is 1~3mm.
(2) BDP waste water flotation tank: is passed through into flotation tank, the unreacted solvent toluene of dissolved air flotation, while further removal
Solids suspension in water, the flotation tank top are equipped with oil removing cinder notch.
(3) visible light catalytic reaction tank: by the waste water after dissolved air flotation pass through visible light catalytic reaction tank, it is described can
The bottom of pond portion of light-exposed catalysis reaction tank tilts down 13 ° along water (flow) direction；The water outlet of the visible light catalytic reaction tank and into
Return pipe is equipped between the mouth of a river, the return pipe is equipped with reflux pump；The water inlet of the visible light catalytic reaction tank is equipped with
Cloth sink.The cloth sink is improved to flow through waste water can uniformly from bottom of pond after entering visible light catalytic reaction tank
Photocatalysis effect, the cloth sink can be a dashpot perpendicular to water (flow) direction, and waste water overflows in dashpot after entering
The bottom of pond for being covered with catalyst is uniformly flowed through after full.The visible light catalytic reaction bottom of pond portion is equipped with a nanometer Au/TiO2Catalyst,
The nanometer Au/TiO2Catalyst is the loaded photocatalyst using glass fibre as carrier.The visible light catalytic reaction tank
Middle water layer with a thickness of 5cm, the main light source of the visible light of the visible light catalytic reaction tank is sunlight, and secondary light source is more
Power is the LED light of 150W.
(4) MBR reaction tank: waste water followed by MBR biochemistry pool anaerobic zone and aerobic zone.
(5) waste water after biochemical treatment ultraviolet catalytic reaction tank: is passed through into ultraviolet catalytic reaction tank, ultraviolet catalytic
The catalyst being equipped in reaction tank, which is negative, is loaded with nano-TiO2Molecular sieve beads, the load has nano-TiO2Molecular sieve it is small
The diameter of ball is 1.5~2mm.Multiple alternately arranged upper spacers and lower clapboard, institute are equipped in the ultraviolet catalytic reaction tank
It states there are gap between upper spacer and the bottom of pond of the ultraviolet catalytic reaction tank, the lower clapboard and the ultraviolet catalytic are anti-
There are gaps between the pond top of Ying Chi, form the reactive tank of the S-shaped traveling of multiple water flows；The width of each reactive tank is 10cm；
The reactive tank is equipped with the U-shaped lamp pipe support for fixing ultraviolet lamp tube, is equipped in parallel on the U-shaped lamp pipe support multiple ultraviolet
Fluorescent tube, aeration channel is equipped in the U-shaped lamp pipe support, and the bottom of the U-shaped lamp pipe support is equipped with several aeration openings；It is described ultraviolet
The bottom of pond portion in light-catalyzed reaction pond is equipped with multiple aerators, is distributed the catalyst of certain weight proportion in water by aeration
It is even, the catalyst partition of inverted L shape is equipped between the top and water outlet of the multiple lower clapboard；On the catalyst partition
It is furnished with multiple through-holes；The aperture of the through-hole is 0.8mm.
(6) MVR enrichment facility: finally the haline water being concentrated through MVR enrichment facility, the MVR enrichment facility
The film used is hollow-fibre membrane, obtains sodium chloride concentrated solution and pure water, sodium chloride concentrated solution is for evaporating brine.
Experimental example 1
BDP raw water COD:6500 to be processed or so, BOD/COD 0.23, salinity are mainly that sodium chloride concentration is
9000ppm。
Sand filter: BDP waste water is first passed around into sand filter and tentatively removes large particulate matter and colloidal type object in waste water
Matter.
Flotation tank: the unreacted solvent toluene of dissolved air flotation, while further removing the solids suspension in water removal；Institute
The sewage load for the flotation tank stated is 8.5m3/h；COD is micro- after this resume module decline, is reduced to 5950；
Visible light photocatalysis reaction tank: dwell time of sewage is 16h in visible light catalytic reaction tank, this module mainly passes through
The biodegradability of both economical efficient mode lifting waste water, the i.e. ratio of BOD/COD do preceding place for postposition biochemical treatment mode
Reason, COD of sewage is down to 4600, BOD/COD and rises to 0.56 after processing；
MBR biochemical reaction: this reaction zone residence time is 20h；This module most passes through the removal efficiency highest of COD, cost
Ji, but on condition that sewage biodegradability with higher, COD of sewage is down to 530 after this resume module；
Ultraviolet catalytic reaction tank: dwell time of sewage is 5h in the ultraviolet catalytic reaction tank.Dirty Organic substance in water
Advanced treating it is more demanding to the oxidability for the treatment of process, at present there is no very economical effective method, ultraviolet light light
Catalysis oxidation ability is strong, and high treating effect, COD is down to 15 after this resume module；
MVR concentration: into the entire technique of early period, there is no desalinating process, therefore salinity will not change in whole flow process,
After COD processing to relatively low degree, ingredient is relatively single in final sewage, based on sodium chloride, carries out MVR at this time
Concentration is concentrated into salt and is divided into 25% or more and is directly discharged into saltern and evaporates brine, and pure water continues as process water reuse.
Comparative experiments example 1
Comparative experiments example 1 does not have visible light catalytic module, and the waste water that flotation tank comes out is directly entered MBR reaction tank:
BDP raw water COD:6500 to be processed or so, BOD/COD 0.23, salinity are mainly that sodium chloride concentration is
9000ppm。
Sand filter: BDP waste water is first passed around into sand filter and tentatively removes large particulate matter and colloidal type object in waste water
Matter.
Flotation tank: the unreacted solvent toluene of dissolved air flotation, while further removing the solids suspension in water removal；Institute
The sewage load for the flotation tank stated is 8.5m3/h；COD is micro- after this resume module decline, is reduced to 5950；
MBR biochemical reaction: this reaction zone residence time is 20h；COD of sewage is down to 2285 after this resume module；
Ultraviolet catalytic reaction tank: dwell time of sewage is 5h in the ultraviolet catalytic reaction tank.By this module place
COD is down to 963 after reason；Discharge standard is not achieved.
Comparative experiments example 2
Comparative experiments example 1 does not have flotation tank module, and the waste water after sand filtration is directly entered visible light catalytic module:
BDP raw water COD:6500 to be processed or so, BOD/COD 0.23, salinity are mainly that sodium chloride concentration is
9000ppm。
Sand filter: BDP waste water is first passed around into sand filter and tentatively removes large particulate matter and colloidal type object in waste water
Matter.
Visible light photocatalysis reaction tank: dwell time of sewage is 16h in visible light catalytic reaction tank, this module mainly passes through
The biodegradability of both economical efficient mode lifting waste water, the i.e. ratio of BOD/COD do preceding place for postposition biochemical treatment mode
Reason, COD of sewage is down to 6230, BOD/COD and rises to 0.58 after processing；
MBR biochemical reaction: this reaction zone residence time is 20h；This module most passes through the removal efficiency highest of COD, cost
Ji, but on condition that sewage biodegradability with higher, COD of sewage is down to 960 after this resume module；
Ultraviolet catalytic reaction tank: dwell time of sewage is 5h in the ultraviolet catalytic reaction tank.Dirty Organic substance in water
Advanced treating it is more demanding to the oxidability for the treatment of process, at present there is no very economical effective method, ultraviolet light light
Catalysis oxidation ability is strong, and high treating effect, COD is down to 160 after this resume module；
MVR concentration: into the entire technique of early period, there is no desalinating process, therefore salinity will not change in whole flow process,
After COD processing to relatively low degree, ingredient is relatively single in final sewage, based on sodium chloride, carries out MVR at this time
Concentration is concentrated into salt and is divided into 25% or more and is directly discharged into saltern and evaporates brine, and pure water continues as process water reuse.
By the above experimental example and Experimental comparison's example as it can be seen that having the function of mutually cooperateing between each module of the utility model,
Visible light photocatalytic degradation is directly carried out after without air-flotation process, final outflow water water-quality COD is imitated than the utility model processing
Fruit is very different；In the comparative experiments example 1 for directly carrying out biochemical reaction without visible light photocatalytic degradation, waste water effect that treated
Fruit is worse.
Claims (10)
1. a kind of BDP waste water multistage couples zero-emission water treatment system, it is characterised in that include following processing module:
(1) flotation tank: the flotation tank top is equipped with oil removing cinder notch；
(2) visible light catalytic reaction tank: the bottom of pond portion of the visible light catalytic reaction tank tilts down 10 along water (flow) direction~
15°；The visible light catalytic reaction bottom of pond portion is equipped with supported nano-Au/TiO2Catalyst；
(3) MBR reaction tank: the MBR reaction tank includes anaerobic zone and aerobic zone；
(4) ultraviolet catalytic reaction tank: equipped with inverted L shape between the top and water outlet in the ultraviolet catalytic reaction tank
Catalyst partition；Multiple through-holes are evenly equipped on the catalyst partition；
(5) MVR enrichment facility: the MVR enrichment facility is respectively equipped with concentrated water outlet and pure water outlet.
2. BDP waste water multistage as described in claim 1 couples zero-emission water treatment system, it is characterised in that: the water process
System further includes being located at flotation tank sand filter module in front；The quartz for being 1~3mm equipped with partial size in the sand filter
Sand.
3. BDP waste water multistage as described in claim 1 couples zero-emission water treatment system, it is characterised in that: the nanometer Au/
TiO2Catalyst is the loaded photocatalyst using glass fibre as carrier.
4. BDP waste water multistage as described in claim 1 couples zero-emission water treatment system, it is characterised in that: the visible light
It is catalyzed reaction tank and is equipped with LED light secondary light source.
5. BDP waste water multistage as described in claim 1 couples zero-emission water treatment system, it is characterised in that: the visible light
It is catalyzed between the water outlet and water inlet of reaction tank and is equipped with return pipe, the return pipe is equipped with reflux pump.
6. BDP waste water multistage as described in claim 1 couples zero-emission water treatment system, it is characterised in that: the visible light
The water inlet for being catalyzed reaction tank is equipped with cloth sink；The cloth sink is the dashpot perpendicular to water (flow) direction.
7. BDP waste water multistage as described in claim 1 couples zero-emission water treatment system, it is characterised in that: the ultraviolet light
Being equipped with load in catalysis reaction tank has nano-TiO2Molecular sieve beads；The load has nano-TiO2Molecular sieve beads it is straight
Diameter is 1~3mm.
8. BDP waste water multistage as described in claim 1 couples zero-emission water treatment system, it is characterised in that: the ultraviolet light
It is catalyzed in reaction tank and is equipped with multiple alternately arranged upper spacers and lower clapboard, the upper spacer and the ultraviolet catalytic reaction tank
Bottom of pond between there are gap, there are gaps between the pond top of the lower clapboard and the ultraviolet catalytic reaction tank, are formed more
The reactive tank of a S-shaped traveling of water flow；The reactive tank is equipped with the U-shaped lamp pipe support for fixing ultraviolet lamp tube, the U-shaped lamp
Multiple ultraviolet lamp tubes are installed in parallel on pipe support, aeration channel, the bottom of the U-shaped lamp pipe support are equipped in the U-shaped lamp pipe support
Portion is equipped with several aeration openings；The bottom of pond portion of the ultraviolet catalytic reaction tank is equipped with multiple aerators, the multiple lower clapboard
Top and water outlet between be equipped with inverted L shape catalyst partition.
9. BDP waste water multistage as described in claim 1 couples zero-emission water treatment system, it is characterised in that: the through-hole
Aperture is 0.5~1mm.
10. BDP waste water multistage as described in claim 1 couples zero-emission water treatment system, it is characterised in that: come at first
It manages and is equipped with sewage pump between the water inlet and each module of module.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111517581A (en) * | 2020-05-14 | 2020-08-11 | 逸辰环保科技(厦门)有限公司 | Chemical nickel wastewater treatment system and treatment process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517581A (en) * | 2020-05-14 | 2020-08-11 | 逸辰环保科技(厦门)有限公司 | Chemical nickel wastewater treatment system and treatment process |
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