CN104628231B - A kind of biochemistry for PBBC waste water-photocatalysis advanced water treatment method - Google Patents
A kind of biochemistry for PBBC waste water-photocatalysis advanced water treatment method Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000007146 photocatalysis Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000002699 waste material Substances 0.000 title description 5
- 239000002351 wastewater Substances 0.000 claims abstract description 95
- 238000006243 chemical reaction Methods 0.000 claims abstract description 44
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 33
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000001699 photocatalysis Effects 0.000 claims abstract description 28
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 18
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 15
- 239000003456 ion exchange resin Substances 0.000 claims abstract description 13
- 229920003303 ion-exchange polymer Polymers 0.000 claims abstract description 13
- 238000005342 ion exchange Methods 0.000 claims abstract description 12
- 239000011941 photocatalyst Substances 0.000 claims abstract description 12
- 230000035484 reaction time Effects 0.000 claims abstract description 12
- 238000005115 demineralization Methods 0.000 claims abstract description 11
- 230000002328 demineralizing effect Effects 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 13
- 230000003197 catalytic effect Effects 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 8
- 239000003957 anion exchange resin Substances 0.000 claims description 8
- 239000003729 cation exchange resin Substances 0.000 claims description 6
- 238000010612 desalination reaction Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 6
- 238000003672 processing method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 230000015556 catabolic process Effects 0.000 abstract description 8
- 238000006731 degradation reaction Methods 0.000 abstract description 8
- 230000003851 biochemical process Effects 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 230000000295 complement effect Effects 0.000 abstract description 2
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- 231100000086 high toxicity Toxicity 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000005842 biochemical reaction Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- -1 Hydroxyl radical free radical Chemical class 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- XXFKYQVWZOJMRR-UHFFFAOYSA-N OC1=CC=C(C=C1)C(C)(C)C1=CC=C(C=C1)O.[Br] Chemical compound OC1=CC=C(C=C1)C(C)(C)C1=CC=C(C=C1)O.[Br] XXFKYQVWZOJMRR-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 229940106691 bisphenol a Drugs 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
- 238000006862 quantum yield reaction Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- NESLWCLHZZISNB-UHFFFAOYSA-M sodium phenolate Chemical compound [Na+].[O-]C1=CC=CC=C1 NESLWCLHZZISNB-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- UCPYLLCMEDAXFR-UHFFFAOYSA-N triphosgene Chemical compound ClC(Cl)(Cl)OC(=O)OC(Cl)(Cl)Cl UCPYLLCMEDAXFR-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
- C02F1/74—Treatment of water, waste water, or sewage by oxidation with air
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/38—Polymers
-
- 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
- C02F2305/10—Photocatalysts
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of biochemical photocatalysis advanced water treatment method for PBBC waste water, comprise: (1) is by PBBC waste water filtering.(2) with being loaded with the nickel screen of titanium dioxide as photocatalyst, ultraviolet wavelength is 254nm, light-catalyzed reaction time 1.5～3 hours.(3) waste water reacts in ABR reaction tank 20～40h, and temperature is increased to 28～32 DEG C, aerated reaction 12～24h.(4) again being reacted under ultraviolet catalyzed effect by waste water, with being loaded with the nickel screen of titanium dioxide as photocatalyst, ultraviolet wavelength is 254nm, and the light-catalyzed reaction time is 2～3 hours.(5) waste water carries out ion-exchange demineralization by ion exchange resin.Biochemical process is combined by the present invention with photocatalysis technique, for PBBC technical field of waste water processing, by light-catalysed pretreatment, improves wastewater biodegradability, is formed and have complementary advantages, reach the depth degradation processing intent to waste water.
Description
Technical field
The present invention relates to chemical wastewater treatment technical field, be specifically related to a kind of fine chemical product tetrabromobisphenol A
The biochemistry of polycarbonate oligomer (PBBC) waste water-photocatalysis advanced water treatment method
Background technology
Tetrabromobisphenol a polycarbonate oligomer is called for short PBBC, is a kind of bromide fire retardant.PBBC is generally with four
Bromine bisphenol-A (TBBA) is prepared with interface fasculation method with triphosgene, and last sodium phenate blocks, through multiple tracks acid
Wash, alkali cleaning, washing process obtain final highly purified product, produce high salt (Main Salts in production process
For NaCl), the waste water of high toxicity (being mainly composed of phenol and bisphenol-A), this kind of waste water have water discharge capacity big,
The features such as difficult degradation, they are difficult to be degraded under natural environmental condition, easily by food chain at organism
Interior enrichment, be a class generally acknowledge high toxicity waste water.
At present, the processing method for this kind of waste water mainly has physico-chemical process both at home and abroad, including absorption method, steam
Method with saltout；Biochemical process, mainly includes activated sludge process and biomembrance process；But physico-chemical process existence processes
The most thorough, it is impossible to the drawback degraded thoroughly.Biochemical process convenient operation and management, but owing to waste water having
Machine thing toxicity is big, difficult degradation, biodegradability are poor, is directly entered biochemical system and can cause microorganism the biggest
Impact, the serious growth suppressing microorganism.And the treatment effect that aliphatic hydrocarbon has been had by biochemical process, to high toxicity
Aromatic compound treatment effect poor.
In recent years, photocatalysis technology as novel advanced processing techniques, be swift in response with it, degrade thorough
The end, do not produce the advantages such as secondary pollution, simple to operate and maintenance cost be low and be increasingly becoming the focus of research,
Currently mainly it is applied to the degradation treatment of high toxicity, low concentration, hardly degraded organic substance in sewage or air, takes
Obtained noticeable effect.
Titanium dioxide is green non-poisonous with it, photocatalysis efficiency advantages of higher becomes a kind of and applies most common light to urge
Agent.When energy is more than the ultraviolet light wave radiation titanium dioxide of titanium dioxide band-gap energy, it is in valence band
Electronics (e-) will be excited to move to particle surface on conduction band and under electric field action, then shape in valence band
Become hole (h+), thus create and there is highly active hole/electronics pair, and then generation has extremely strong oxidation
Hydroxyl radical free radical OH, the Superoxide anion free radical O of effect2-, super oxygen hydroxyl radical free radical OOH etc., this kind of
The group with extremely strong Oxidation captures the electronics in semiconductor surface adsorbed material or solvent, makes originally
The material of extinction is not activated and oxidized, and thorough mineralising is CO2、H2O and inorganic salt, do not produce secondary dirty
Dye.
But optically catalytic TiO 2 technology quantum yield is the highest at present, simple use photocatalysis technology is for height
It is still inadequate that concentration waste water processes the degree of depth, and uses merely photocatalysis method operating cost high.
Summary of the invention
The technical problem to be solved is: the deficiency existed for prior art, it is provided that one is used for
The biochemistry of PBBC waste water-photocatalysis advanced water treatment method, the method is to high concentration, high toxicity, high salt
PBBC wastewater degradation is thorough, does not has secondary pollution, and operating cost is low, to make up lacking in above-mentioned background technology
Fall into.
For solving above-mentioned technical problem, the technical scheme is that
A kind of biochemistry for PBBC waste water-photocatalysis advanced water treatment method, it is characterised in that comprise following
Step:
(1) pretreatment: by PBBC waste water filtering, remove the suspended solids thing in water, also can simultaneously
Removing the Organic substance of part, the pH value of described PBBC waste water is 6.5～7.5.
(2) preposition photocatalysis treatment: at room temperature, by pretreated PBBC waste water urging at ultraviolet
React under change effect, use and be loaded with the nickel screen of titanium dioxide as photocatalyst, the wavelength of described ultraviolet
For 254nm, the light-catalyzed reaction time of described PBBC waste water is 1.5～3 hours, after light-catalyzed reaction terminates
The pH value of described PBBC waste water is 7～8.
(3) biochemical treatment: by the waste water after light-catalyzed reaction at 25～30 DEG C, reacts in ABR reaction tank
20～40h, reaction terminate laggard row Aerobic Process for Treatment, temperature is increased to 28～32 DEG C, continue aerated reaction 12～
24h。
(4) degree of depth photocatalysis treatment: waste water step (3) obtained is again in the catalytic action of ultraviolet
Lower reaction, uses and is loaded with the nickel screen of titanium dioxide as photocatalyst, and the wavelength of described ultraviolet is 254nm,
The light-catalyzed reaction time of described PBBC waste water is 2～3 hours, and water outlet uses activated carbon adsorption.
(5) ion-exchange demineralization: the waste water that step (4) obtains carries out ion friendship by ion exchange resin
Change desalination.
As the preferred technical scheme of one, the types of spawn in described ABR reaction tank is that ECM is combined salt tolerant
Bacterium.
As the preferred technical scheme of one, the ion exchange resin in described step (5) by highly acid sun from
Sub-exchange resin and strong-base anion-exchange resin obtain according to the mixed in molar ratio of 1: 1.5.
As further preferred technical scheme, described in be 001 × 7 type storng-acid cation exchange resin, institute
Stating strong-base anion-exchange resin is 201 × 7 type strong-base anion-exchange resins.
As further preferred technical scheme, the described ion-exchange demineralization time is 1～2h.
As the preferred technical scheme of one, during described light-catalyzed reaction, the flow velocity of described PBBC waste water be 2～
4m3/h。
As the technical scheme of a kind of improvement, described ABR reaction tank is divided into the most independent at least 8 ABR
Reaction tank, by the waste water after described light-catalyzed reaction at 25～30 DEG C, flow through successively described at least 8 ABR
Reaction tank, is altogether 20～40h in the response time of described at least 8 ABR reaction tanks.
Owing to have employed technique scheme, the invention has the beneficial effects as follows:
The present invention is for the biochemistry-photocatalysis advanced water treatment method of PBBC waste water, by PBBC waste water through pre-place
After reason, first through preposition light-catalyzed reaction, then through biochemical treatment, the most again through degree of depth photocatalysis treatment,
By desalination, for biodegradability difference and the phenol of high-load in PBBC waste water, reducing as far as possible, photocatalysis is anti-
Should be on the premise of the time of staying, through the photochemical catalytic oxidation open loop of preposition light-catalyzed reaction, hence it is evident that improve useless
BOD in water5/ CODcr ratio, reduces the load of biochemical reaction step, improves biochemical reaction effect, warp
It is micro-that the biochemical part mixed in degree of depth light-catalyzed reaction, biochemical system water outlet again after biochemical reaction produces
Biology, can process thoroughly in degree of depth photocatalysis part, almost can kill all of microorganism, with
Time for biochemistry part still fail degraded Organic substance by degree of depth photocatalysis can obtain the degree of depth oxidation drop
Solving, in two-part photocatalysis treatment, do not produce any secondary pollution, toxic organic compound is mineralized completely
For CO2With H2O。
The ABR reaction tank of the present invention is divided into the most independent at least 8 ABR reaction tank, by light-catalyzed reaction
After waste water flow through successively described at least 8 ABR reaction tanks, through the biochemical reaction of each step, in waste water
Content of organics kind all change, therefore the water quality of each biochemistry pool is different, has applicable water quality
Respective dominant bacteria, therefore can be obviously improved treatment effeciency and treatment effect.
The present invention is when ion-exchange demineralization, and the mol ratio of yin and yang resin is preferably 1.5:1, is effectively removing
In water while zwitterion, effectively prevent water outlet acidity too strong.
Biochemical process is combined by the present invention with photocatalysis technique, and by light-catalysed pretreatment, improving waste water can
Biochemical, is formed and has complementary advantages, reach the advanced treating effect to waste water, do not throw during whole service
Add any medicament, water quality will not be caused secondary pollution, good waste water treatment effect, and the optical processing time is short,
Greatly reduce operating cost, processed by the invention after PBBC waste water effluent quality in CODcr be 20～
240mg/L, chloride ion content≤700mg/L, pH value is 7.5～8.5, in alkalescence.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments are only used for
The present invention is described rather than limits the scope of the present invention.In addition, it is to be understood that reading what the present invention lectured
After content, the present invention can be made various changes or modifications by those skilled in the art, and these equivalent form of values are same
Sample falls within the application appended claims limited range.
Embodiment 1
Pending former water basic condition is: PBBC waste water, mainly contains phenol, tetrabromobisphenol A in waste water
(TBBA) with very small amount dichloromethane and triethylamine.Wastewater pH is 6.5～7.5, COD value 2500mg/L,
BOD5/ CODcr is 0.26, and chloride ion content is higher, at 4000mg/L, belongs to high toxicity high salt difficult degradation
Waste water.
By PBBC waste water filtering, remove the suspended solids thing in water, also can remove the organic of part simultaneously
Thing.At room temperature, pretreated PBBC waste water is reacted under the catalytic action of ultraviolet, use load
Having the nickel screen of titanium dioxide as photocatalyst, the wavelength of described ultraviolet is 254nm, described PBBC waste water
Flowing through the photo catalysis reactor being provided with catalyst nickel screen and ultraviolet lamp tube, the light-catalyzed reaction time flowed through is
1.5 hours, it was 7～8 that light-catalyzed reaction terminates the pH value of rear described PBBC waste water.
At 25 DEG C, the waste water after light-catalyzed reaction is entered ABR reaction tank, and described ABR reaction tank is divided into each
8 independent ABR reaction tanks, flow through 8 ABR reaction tanks successively by the waste water after described light-catalyzed reaction,
Types of spawn in being altogether 25h, ABR reaction tank in the response time of 8 ABR reaction tanks is that ECM is multiple
Closing Facultative Halophiles, reaction terminates laggard row Aerobic Process for Treatment, and temperature is increased to 28 DEG C, continues aerated reaction 15h.
Waste water after biochemical treatment is reacted again under the catalytic action of ultraviolet, uses and be loaded with titanium dioxide
The nickel screen of titanium is as photocatalyst, and the wavelength of described ultraviolet is 254nm, and described PBBC waste water flows through setting
Having the photo catalysis reactor of catalyst nickel screen and ultraviolet lamp tube, the light-catalyzed reaction time flowed through is 2 hours,
Water outlet uses activated carbon adsorption.
Finally, waste water adds ion exchange resin and carry out ion-exchange demineralization.
After preposition photocatalysis treatment, the CODcr of water outlet is 2450mg/L, BOD5/ CODcr is 0.35,
PH value does not has significant change, is 7～8；ABR reactor water outlet CODcr is 1700mg/L, after Aerobic Process for Treatment
Water outlet CODcr 550mg/L；After entering degree of depth photocatalysis treatment and ion exchange resin desalination, final water outlet
Index is CODcr 240mg/L, and chloride ion content 700mg/L, pH are 7.5～8.5.
Embodiment 2
Pending former water basic condition is: PBBC waste water, mainly contains phenol, tetrabromobisphenol A in waste water
(TBBA) with very small amount dichloromethane and triethylamine.Wastewater pH is 6.5～7.5, COD value 2500mg/L,
BOD5/ CODcr is 0.26, and chloride ion content is higher, at 4000mg/L, belongs to high toxicity high salt difficult degradation
Waste water.
By PBBC waste water filtering, remove the suspended solids thing in water, also can remove the organic of part simultaneously
Thing.At room temperature, pretreated PBBC waste water is reacted under the catalytic action of ultraviolet, use load
Having the nickel screen of titanium dioxide as photocatalyst, the wavelength of described ultraviolet is 254nm, described PBBC waste water
Flowing through the photo catalysis reactor being provided with catalyst nickel screen and ultraviolet lamp tube, the flow velocity of described PBBC waste water is
2.5m3/ h, the light-catalyzed reaction time flowed through is 3 hours, and light-catalyzed reaction terminates rear described PBBC waste water
PH value is 7～8.
At 25～30 DEG C, the waste water after light-catalyzed reaction is entered ABR reaction tank, and described ABR reaction tank is divided into
Respective 8 ABR reaction tanks, flow through 8 ABR reaction tanks successively by the waste water after described light-catalyzed reaction,
Types of spawn in being altogether 32h, ABR reaction tank in the response time of 8 ABR reaction tanks is that ECM is multiple
Closing Facultative Halophiles, reaction terminates laggard row Aerobic Process for Treatment, and temperature is increased to 32 DEG C, continues aerated reaction 20h.
Waste water after biochemical treatment is reacted again under the catalytic action of ultraviolet, uses and be loaded with titanium dioxide
The nickel screen of titanium is as photocatalyst, and the wavelength of described ultraviolet is 254nm, and described PBBC waste water flows through setting
Having the photo catalysis reactor of catalyst nickel screen and ultraviolet lamp tube, the flow velocity of described PBBC waste water is 3m3/ h, stream
The light-catalyzed reaction time of warp is 3 hours, and water outlet uses activated carbon adsorption.
Finally, in waste water add ion exchange resin carry out ion-exchange demineralization, ion exchange resin by
001 × 7 type storng-acid cation exchange resin and 201 × 7 type strong-base anion-exchange resins are according to 1:
The mixed in molar ratio of 1.5 obtains, and the ion-exchange demineralization time is 1h.
After preposition photocatalysis treatment, the CODcr of water outlet is 2200mg/L, BOD5/ CODcr is 0.54,
PH value does not has significant change, is 7～8；ABR reactor water outlet CODcr is 1800mg/L, after Aerobic Process for Treatment
Water outlet CODcr 350mg/L；After entering degree of depth photocatalysis treatment and ion exchange resin desalination, final water outlet
Index is CODcr 40mg/L, and chloride ion content 230mg/L, pH are 7～8, reach sewage discharge one-level A
Standard.
Embodiment 3
Pending former water basic condition is: PBBC waste water, mainly contains phenol, tetrabromobisphenol A in waste water
(TBBA) with very small amount dichloromethane and triethylamine.Wastewater pH is 6.5～7.5, COD value 2500mg/L,
BOD5/ CODcr is 0.26, and chloride ion content is higher, at 4000mg/L, belongs to high toxicity high salt difficult degradation
Waste water.
By PBBC waste water filtering, remove the suspended solids thing in water, also can remove the organic of part simultaneously
Thing.At room temperature, pretreated PBBC waste water is reacted under the catalytic action of ultraviolet, use load
Having the nickel screen of titanium dioxide as photocatalyst, the wavelength of described ultraviolet is 254nm, described PBBC waste water
Flowing through the photo catalysis reactor being provided with catalyst nickel screen and ultraviolet lamp tube, the flow velocity of described PBBC waste water is
3.5m3/ h, the light-catalyzed reaction time flowed through is 2.5 hours, and light-catalyzed reaction terminates rear described PBBC waste water
PH value be 7～8.
At 28 DEG C, the waste water after light-catalyzed reaction is entered ABR reaction tank, and described ABR reaction tank is divided into each
8 independent ABR reaction tanks, flow through described 8 ABR successively anti-by the waste water after described light-catalyzed reaction
Ying Chi, in the response time of 8 ABR reaction tanks for the types of spawn in 40h, ABR reaction tank be altogether
ECM is combined Facultative Halophiles, and reaction terminates laggard row Aerobic Process for Treatment, and temperature is increased to 30 DEG C, continues aerated reaction
24h。
Waste water after biochemical treatment is reacted again under the catalytic action of ultraviolet, uses and be loaded with titanium dioxide
The nickel screen of titanium is as photocatalyst, and the wavelength of described ultraviolet is 254nm, and described PBBC waste water flows through setting
Having the photo catalysis reactor of catalyst nickel screen and ultraviolet lamp tube, the flow velocity of described PBBC waste water is 3m3/ h, stream
The light-catalyzed reaction time of warp is 2.5 hours, and water outlet uses activated carbon adsorption.
Finally, in waste water add ion exchange resin carry out ion-exchange demineralization, ion exchange resin by
001 × 7 type storng-acid cation exchange resin and 201 × 7 type strong-base anion-exchange resins are according to 1:
The mixed in molar ratio of 1.5 obtains, and the ion-exchange demineralization time is 1.5h.
After preposition photocatalysis treatment, the CODcr of water outlet is 2200mg/L, BOD5/ CODcr is 0.54,
PH value does not has significant change, is 7～8；ABR reactor water outlet CODcr is 1600mg/L, after Aerobic Process for Treatment
Water outlet CODcr 320mg/L；After entering degree of depth photocatalysis treatment and ion exchange resin desalination, final water outlet
Index is CODcr 20mg/L, and chloride ion content 220mg/L, pH are 7～8, reach sewage discharge one-level A
Standard.
Claims (7)
1. biochemistry-photocatalysis the advanced water treatment method for PBBC waste water, it is characterised in that comprise following step
Rapid:
(1) pretreatment: by PBBC waste water filtering, the pH value of described PBBC waste water is 6.5～7.5；
(2) preposition photocatalysis treatment: pretreated PBBC waste water is reacted under the catalytic action of ultraviolet,
Using and be loaded with the nickel screen of titanium dioxide as photocatalyst, the wavelength of described ultraviolet is 254nm, institute
The light-catalyzed reaction time stating PBBC waste water is 1.5～3 hours, and light-catalyzed reaction terminates rear described PBBC
The pH value of waste water is 7～8；
(3) biochemical treatment: by the waste water after light-catalyzed reaction at 25～30 DEG C, reacts in ABR reaction tank
20～40h, reaction terminates laggard row Aerobic Process for Treatment, and temperature is increased to 28～32 DEG C, continues aerated reaction
12～24h；
(4) degree of depth photocatalysis treatment: waste water step (3) obtained is again under the catalytic action of ultraviolet
Reaction, use is loaded with the nickel screen of titanium dioxide and as photocatalyst, the wavelength of described ultraviolet is
254nm, the light-catalyzed reaction time of described PBBC waste water is 2～3 hours, and water outlet uses activated carbon to inhale
Attached；
(5) ion-exchange demineralization: the waste water that step (4) obtains carries out ion exchange by ion exchange resin
Desalination.
2. biochemistry-photocatalysis the advanced water treatment method for PBBC waste water as claimed in claim 1, its feature
It is: the types of spawn in described ABR reaction tank is that ECM is combined Facultative Halophiles.
3. biochemistry-photocatalysis the advanced water treatment method for PBBC waste water as claimed in claim 1, its feature
It is: the ion exchange resin in described step (5) is by storng-acid cation exchange resin and highly basic
Property anion exchange resin obtains according to the mixed in molar ratio of 1: 1.5.
4. biochemistry-photocatalysis the advanced water treatment method for PBBC waste water as claimed in claim 3, its feature
It is: described storng-acid cation exchange resin is 001 × 7 type storng-acid cation exchange resin, institute
Stating strong-base anion-exchange resin is 201 × 7 type strong-base anion-exchange resins.
5. biochemistry-photocatalysis the advanced water treatment method for PBBC waste water as claimed in claim 3, its feature
It is: the described ion-exchange demineralization time is 1～2h.
6. biochemistry-photocatalysis the advanced water treatment method for PBBC waste water as claimed in claim 1, its feature
Being: during described light-catalyzed reaction, the flow velocity of described PBBC waste water is 2～4m3/h。
7. the biochemistry for PBBC waste water as described in claim 1 to 6 any claim-photocatalysis degree of depth water
Processing method, it is characterised in that: described ABR reaction tank is divided into the most independent at least 8 ABR to react
Pond, by the waste water after described light-catalyzed reaction at 25～30 DEG C, flow through successively described at least 8 ABR anti-
Ying Chi, is 20～40h in the response time of described at least 8 ABR reaction tanks.
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