CN106966556A - The technique that a kind of film process UC-51762 produces waste water - Google Patents
The technique that a kind of film process UC-51762 produces waste water Download PDFInfo
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- CN106966556A CN106966556A CN201710373902.3A CN201710373902A CN106966556A CN 106966556 A CN106966556 A CN 106966556A CN 201710373902 A CN201710373902 A CN 201710373902A CN 106966556 A CN106966556 A CN 106966556A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 52
- 230000008569 process Effects 0.000 title claims abstract description 25
- 239000000919 ceramic Substances 0.000 claims abstract description 37
- 239000012528 membrane Substances 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000013522 chelant Substances 0.000 claims abstract description 8
- 238000005189 flocculation Methods 0.000 claims abstract description 8
- 230000016615 flocculation Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 230000003197 catalytic effect Effects 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 230000003647 oxidation Effects 0.000 claims abstract description 7
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 150000004657 carbamic acid derivatives Chemical class 0.000 claims abstract description 6
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 4
- 238000001556 precipitation Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 19
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 18
- 239000002253 acid Substances 0.000 claims description 10
- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 8
- 229910001051 Magnalium Inorganic materials 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 7
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 7
- 229920005591 polysilicon Polymers 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000004115 Sodium Silicate Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical group O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 2
- 241000040710 Chela Species 0.000 claims 1
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- HGWOWDFNMKCVLG-UHFFFAOYSA-N [O--].[O--].[Ti+4].[Ti+4] Chemical compound [O--].[O--].[Ti+4].[Ti+4] HGWOWDFNMKCVLG-UHFFFAOYSA-N 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000005374 membrane filtration Methods 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 231100000614 poison Toxicity 0.000 abstract description 4
- 230000007096 poisonous effect Effects 0.000 abstract description 3
- UHXUZOCRWCRNSJ-QPJJXVBHSA-N methomyl Chemical group CNC(=O)O\N=C(/C)SC UHXUZOCRWCRNSJ-QPJJXVBHSA-N 0.000 description 4
- 239000005916 Methomyl Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241000254173 Coleoptera Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 241000255967 Helicoverpa zea Species 0.000 description 1
- 241000258937 Hemiptera Species 0.000 description 1
- 241000257303 Hymenoptera Species 0.000 description 1
- 241000255777 Lepidoptera Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical group O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- -1 dimethyl ureas Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 229920000592 inorganic polymer Polymers 0.000 description 1
- 230000000749 insecticidal effect Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 231100000194 ovacidal Toxicity 0.000 description 1
- 230000003151 ovacidal effect Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 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
- 238000004065 wastewater treatment 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/306—Pesticides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- 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
- C02F2103/343—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 pharmaceutical industry, e.g. containing antibiotics
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses the technique that a kind of film process UC-51762 produces waste water, comprise the following steps：(1) UC-51762 production waste water is introduced into photochemical catalytic oxidation device, carbamates larger molecular organicses is degraded under the irradiation of ultraviolet light, small organic molecule is generated；(2) waste water after being handled through step (1) is introduced into decolorizing reaction tank, and decolorising agent generates chelate with small organic molecule under the mixing of agitator；3) waste water after being handled through step (2) is introduced into neutralization flocculation basin, and chelate is flocculated agent net and caught, and is polymerize, precipitation；(4) waste water after being handled through step (3) is introduced into filtering ponds, and water obtains ceramic membrane clear liquid after ceramic membrane filter；(5) ceramic membrane clear liquid after being handled through step (4) is introduced into biochemical treatment tank and carries out biochemical treatment.This method can effectively degrade poisonous larger molecular organicses, improve wastewater biodegradability and operating cost is low.
Description
Technical field
Waste water is produced the invention belongs to agricultural chemicals waste water processing technology field, more particularly to a kind of film process UC-51762
Technique.
Background technology
UC-51762 is one of low toxicity derivative of Methomyl, remains the advantages of Methomyl is to insect broad-spectrum high efficacy,
Toxicity is reduced, the larva of the insects such as preventing and treating Lepidoptera, Homoptera, Diptera, Hymenoptera, coleoptera is widely used in, it is especially right
Resistant bollworm shows excellent ovicidal insecticidal properties, and the special efficacy phase is long, extremely safe to cotton, is to eliminate high poison, height at present
The preferred product of remains of pesticide.At present, the main production process of UC-51762 is Methomyl method, and high income, cost are low, equipment
Without particular/special requirement, technological process is short, but has in the waste water of this method generation containing a variety of macromoleculars such as MHTA, dimethyl ureas
Malicious noxious pollutant, B/C ratios are high, with pollutant concentration is high, salt content is high, colourity is high and the features such as high toxicity, to micro- life
Thing toxic action is big, and biological degradability is poor, belongs to difficult degradation pesticide wastewater, both at home and abroad so far without ripe effective industry
Change processing method.
The content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art effectively to be degraded poisonous big point there is provided one kind
Sub- organic matter, the processing method for improving the low UC-51762 production waste water of wastewater biodegradability, operating cost.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of film process UC-51762 produces the technique of waste water, comprises the following steps：
(1) UC-51762 production waste water is introduced into photochemical catalytic oxidation device, provided with porous in the photochemical catalytic oxidation device
Titanium deoxide catalyst is loaded with ceramic membrane, the porous ceramic film, to the UC-51762 under the irradiation of ultraviolet light
Carbamates larger molecular organicses in production waste water are degraded, and generate small organic molecule；
(2) waste water after being handled through step (1) is introduced into decolorizing reaction tank, and decolorising agent is provided with decolorizing reaction tank and is stirred
Device is mixed, decolorising agent generates chelate with small organic molecule under the mixing of agitator；
(3) waste water after being handled through step (2) is introduced into neutralization flocculation basin, neutralizes and flocculant, institute are provided with flocculation basin
State chelate and be flocculated agent net and catch, polymerize, precipitation；
(4) waste water after being handled through step (3) is introduced into filtering ponds, and purpose ceramic-film filter, waste water are provided with filtering ponds
Ceramic membrane clear liquid is obtained after ceramic membrane filter；
(5) ceramic membrane clear liquid after being handled through step (4) is introduced into biochemical treatment tank and carries out biochemical treatment.
The technique that a kind of above-mentioned film process UC-51762 produces waste water, it is preferable that in the step (1), the step
Suddenly in (1), irradiation condition is：UV energy is 200-300W, and irradiation time is 30-60min.
The technique that a kind of above-mentioned film process UC-51762 produces waste water, it is preferable that described many in the step (1)
The preparation method of hole ceramic membrane is：By titanium dioxide powder through ultrasonic disperse in water, obtain tio_2 suspension, then will
Porous ceramic film is immersed in the tio_2 suspension, is taken out after 2-4h, through 1000-1200 DEG C of high-temperature roasting 8-10h, cooling
After obtain porous ceramic film.
The technique that a kind of above-mentioned film process UC-51762 produces waste water, it is preferable that the grain of the titanium dioxide powder
Footpath is 50-150nm.
The technique that a kind of above-mentioned film process UC-51762 produces waste water, it is preferable that the aperture of the porous ceramic film
ForThe material of the porous ceramic film is aluminum oxide, zirconium oxide or titanium oxide.
The technique that a kind of above-mentioned film process UC-51762 produces waste water, it is preferable that in the step (2), it is described de-
Toner is nano zero-valence iron powder, and the particle diameter of the nano zero-valence iron powder is 60-100nm.
The technique that a kind of above-mentioned film process UC-51762 produces waste water, it is preferable that the nano zero-valence iron powder is being thrown
Enter before decolorizing reaction tank, the nano zero-valence iron powder is washed using watery hydrochloric acid, to remove the nano zero-valence iron powder
The oxide layer on surface.
The technique that a kind of above-mentioned film process UC-51762 produces waste water, it is preferable that the flocculant is aluminium silicate polymer
Magnesium flocculant, dosage is 50-100mg/L, and the sedimentation time is 1.5-2.5h.
The technique that a kind of above-mentioned film process UC-51762 produces waste water, it is preferable that the polysilicon acid magnalium flocculant
Preparation method be：Sodium metasilicate is dissolved in water, adds after sulfuric acid solution and mixes, regulation pH value is faintly acid, adds and contains Al2
(SO4)3And MgSO4Mixed solution, be aged 10-12h after stirring, obtain polysilicon acid magnalium flocculant.
The technique that a kind of above-mentioned film process UC-51762 produces waste water, it is preferable that the aperture of the ceramic membrane is
0.05-0.5μm。
Compared with prior art, the advantage of the invention is that：
1st, catalyst titanium dioxide is fixed on porous ceramic film by the present invention, and the aperture of porous ceramic film isThe porous ceramic film of this carried titanium dioxide is inserted in photo catalysis reactor as Catalyst flakes, allows porous
Ceramic membrane is vertical with ultraviolet light, is 200-300W in UV energy, irradiation time goes out many to be double to sulphur under the conditions of 30-60min
Carbamates organic macromolecule in prestige production waste water is degraded, generation small organic molecule and carbon dioxide, nitric acid
The inorganic matter such as root and ammonium root.Experiment shows that degradable UC-51762 produces more than 80% carbamates in waste water
Organic macromolecule.
2nd, the small organic molecule of photocatalytic degradation generation is generally sulfur-bearing or the organic matter containing amine, can be with nano zero valence iron
Powder generates chelate, and decolorizing reaction tank is carried out, these small organic molecules can be made fully to be contacted with iron filings, reduction reduction
In the reaction time, shorten reaction process.
3rd, polysilicate is the new inorganic polymer flocculant of a class, because the flocculant has charge neutrality and suction simultaneously
Attached bridging action, flocculating effect is good, it is not necessary to additionally add alkali lye, the present invention is using sodium metasilicate, aluminum sulfate and magnesium sulfate as raw material
Polysilicic acid containing aluminum sulfate and magnesium sulfate flocculant is prepared, cost of material is low, and easily prepared.
4th, the present invention uses aperture to have for 0.05-0.5 μm of ceramic membrane to the small molecule remained in waste water after flocculation sediment
Machine thing etc. is filtered, and further increases the biodegradability of waste water.
Embodiment
Below in conjunction with specific preferred embodiment, the invention will be further described, but not thereby limiting the invention
Protection domain.
Embodiment 1：
It is the UC-51762 waste water that 42769mg/L, biodegradability B/C are 0.15 to certain agricultural chemicals company CODcr, using this
The processing method of invention is handled.
Concrete operations flow is as follows：
(1) 10 tons of UC-51762 waste water are introduced into photochemical catalytic oxidation device, loading dioxy is equipped with photochemical catalytic oxidation device
Change the porous ceramic film of titanium catalyst, make porous ceramic film vertical with ultraviolet light, starting stirring makes reaction solution uniform, purple in 200W
60min is irradiated under outer light, carbamates larger molecular organicses are degraded, small organic molecule is generated, sulphur can be made double
85% poisonous larger molecular organicses degraded in Methomyl production waste water；
The preparation method of the porous ceramic film of above-mentioned loading titanium deoxide catalyst is：
By 5g average grain diameters for 80nm ultrafine titania ultrasonic disperse in 120ml water, formed titanium dioxide
Suspension, then by porous titanium oxide potsherd, (200 × 200mm, aperture isLeft and right) immerse in tio_2 suspension
2h, through 1000 DEG C of high-temperature roasting 10h, obtains loading the porous ceramic film of titanium deoxide catalyst after cooling.
(2) waste water after being handled through step (1) is introduced into decolorizing reaction tank, and it is 15cm that thickness is provided with decolorizing reaction tank
Nano zero-valence iron powder layer and agitator, nano zero-valence iron powder be graininess, average diameter of particles is 60nm, add decoloring reaction
Washed before pond with 15% dilute hydrochloric acid solution, to remove the oxide layer of nano zero-valence iron surface, greatly improve its activity,
In decolorization, air is passed through into decolorizing reaction tank, to increase the reaction rate of reduction reaction in decolorizing reaction tank, nanometer zero
Valency iron mixes and generates chelate under stirring with small organic molecule；
(3) waste water after being handled through step (2) is introduced into neutralization flocculation basin, neutralizes and polysilicon acid magnalium is provided with flocculation basin
Flocculant, dosage is 60mg/L, and the sedimentation time is 2.5h, and chelate is caught by the flocculant net, is polymerize, precipitation；
The specific preparation method of polysilicon acid magnalium flocculant is：Weigh a certain amount of sodium metasilicate and be dissolved in water, add certain body
Product concentration is mixed rapidly for 15% sulfuric acid solution, and regulation pH value is 6.5, adds Al2(SO4)3And MgSO4Mixed solution, its
In, Al2(SO4)3Mass concentration be 15%, MgSO4Mass concentration be 25%, stir 5min, after still aging 12h, obtain
Polysilicon acid magnalium flocculant.
(4) waste water after being handled through step (3) is introduced into filtering ponds, and purpose ceramic-film filter, ceramics are provided with filtering ponds
The aperture of film is 0.25 μm, and waste water obtains 9.6 tons of ceramic membrane clear liquids after ceramic membrane filter, surveys CODcr (mg/L) value such as table 1
It is shown；
CODcr (mg/L) reduced value before and after the UC-51762 wastewater treatment of the embodiment 1 of table 1
(5) ceramic membrane clear liquid after being handled through step (4) is introduced into biochemical treatment tank and carries out biochemical treatment.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example.All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It is noted that for the art
Those of ordinary skill for, improvements and modifications under the premise without departing from the principles of the invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of film process UC-51762 produces the technique of waste water, comprise the following steps：
(1) UC-51762 production waste water is introduced into photochemical catalytic oxidation device, porous ceramics is provided with the photochemical catalytic oxidation device
Titanium deoxide catalyst is loaded with film, the porous ceramic film, the UC-51762 is produced under the irradiation of ultraviolet light
Carbamates larger molecular organicses in waste water are degraded, and generate small organic molecule；
(2) waste water after being handled through step (1) is introduced into decolorizing reaction tank, and decolorising agent and stirring are provided with decolorizing reaction tank
Device, decolorising agent generates chelate with small organic molecule under the mixing of agitator；
(3) waste water after being handled through step (2) is introduced into neutralization flocculation basin, neutralizes and flocculant, the chela are provided with flocculation basin
Compound is flocculated agent net and caught, and polymerize, precipitation；
(4) waste water after being handled through step (3) is introduced into filtering ponds, purpose ceramic-film filter is provided with filtering ponds, waste water is through pottery
Ceramic membrane clear liquid is obtained after porcelain membrane filtration；
(5) ceramic membrane clear liquid after being handled through step (4) is introduced into biochemical treatment tank and carries out biochemical treatment.
2. the technique that a kind of film process UC-51762 according to claim 1 produces waste water, it is characterised in that the step
Suddenly in (1), irradiation condition is：UV energy is 200-300W, and irradiation time is 30-60min.
3. the technique that a kind of film process UC-51762 according to claim 1 produces waste water, it is characterised in that the step
Suddenly in (1), the preparation method of the porous ceramic film is：By titanium dioxide powder through ultrasonic disperse in water, obtain titanium dioxide
Titanium suspension, then immerses porous ceramic film in the tio_2 suspension, is taken out after 2-4h, high through 1000-1200 DEG C
Temperature roasting 8-10h, porous ceramic film is obtained after cooling.
4. the technique that a kind of film process UC-51762 according to claim 3 produces waste water, it is characterised in that described two
The particle diameter of titanium oxide powder is 50-150nm.
5. the technique that a kind of film process UC-51762 according to claim 4 produces waste water, it is characterised in that described many
The aperture of hole ceramic membrane isThe material of the porous ceramic film is aluminum oxide, zirconium oxide or titanium oxide.
6. the technique that a kind of film process UC-51762 according to claim 1 produces waste water, it is characterised in that the step
Suddenly in (2), the decolorising agent is nano zero-valence iron powder, and the particle diameter of the nano zero-valence iron powder is 60-100nm.
7. the technique that a kind of film process UC-51762 according to claim 6 produces waste water, it is characterised in that described to receive
Rice zeroth order iron powder is washed, to remove before input decolorizing reaction tank using watery hydrochloric acid to the nano zero-valence iron powder
State the oxide layer on nano zero-valence iron powder surface.
8. the technique that a kind of film process UC-51762 according to claim 1 produces waste water, it is characterised in that the step
Suddenly in (3), the flocculant is polysilicon acid magnalium flocculant, and dosage is 50-100mg/L, and the sedimentation time is 1.5-2.5h.
9. the technique that a kind of film process UC-51762 according to claim 8 produces waste water, it is characterised in that described poly-
The preparation method of Magnesiumaluminumsilicate flocculant is：Sodium metasilicate is dissolved in water, adds after sulfuric acid solution and mixes, regulation pH value is weak acid
Property, add and contain Al2(SO4)3And MgSO4Mixed solution, be aged 10-12h after stirring, obtain polysilicon acid magnalium flocculant.
10. the technique that a kind of film process UC-51762 according to claim 1 produces waste water, it is characterised in that described
In step (4), the aperture of the ceramic membrane is 0.05-0.5 μm.
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