CN110015805A - A kind of system of Sewage advanced treatment - Google Patents
A kind of system of Sewage advanced treatment Download PDFInfo
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- CN110015805A CN110015805A CN201910127768.8A CN201910127768A CN110015805A CN 110015805 A CN110015805 A CN 110015805A CN 201910127768 A CN201910127768 A CN 201910127768A CN 110015805 A CN110015805 A CN 110015805A
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- advanced treatment
- ozone
- heterogeneous fenton
- check
- reaction zone
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- 238000011282 treatment Methods 0.000 title claims abstract description 57
- 239000010865 sewage Substances 0.000 title claims abstract description 15
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 68
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 238000004062 sedimentation Methods 0.000 claims abstract description 32
- 239000002351 wastewater Substances 0.000 claims abstract description 29
- 238000005189 flocculation Methods 0.000 claims abstract description 17
- 230000016615 flocculation Effects 0.000 claims abstract description 17
- 238000005273 aeration Methods 0.000 claims abstract description 16
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 13
- 230000003750 conditioning effect Effects 0.000 claims abstract description 11
- 238000005842 biochemical reaction Methods 0.000 claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 8
- 239000005416 organic matter Substances 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims abstract description 4
- 230000000593 degrading effect Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 16
- 230000015556 catabolic process Effects 0.000 claims description 14
- 238000006731 degradation reaction Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 10
- 239000006228 supernatant Substances 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 4
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 230000002195 synergetic effect Effects 0.000 claims description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 2
- 229910001882 dioxygen Inorganic materials 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 239000004568 cement Substances 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- -1 hydroxyl radical free radical Chemical class 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect 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
- C02F1/52—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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
-
- 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
- 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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention belongs to technical field of waste water processing, more particularly to a kind of system of Sewage advanced treatment, including sequentially connected conditioning tank, flocculation sedimentation tank, biochemical reaction tank, sedimentation basin and advanced treatment reactor, the top of sedimentation basin is connected with the input duct of advanced treatment reactor, it is divided into heterogeneous Fenton synergy ozone reaction zone and biological aerated filter area in the cylinder of advanced treatment reactor, the lower part of cylinder is arranged in input duct, it is connected to heterogeneous Fenton synergy ozone reaction zone, introduce heterogeneous fenton catalyst, hydrogen peroxide can be made to react in neutrallty condition, generate hydroxyl radical free radical, organic matter in degrading waste water, avoid the requirement that the adjustment pH of Fenton oxidation system requirement is reacted to acid condition, iron cement is not generated in entire reaction simultaneously, there is no secondary pollution；Air-source after making full use of ozone oxidation guarantees to save aeration power consumption cost in the case of the effect of biofilter；It is discharged direct standard discharge.
Description
Technical field
The invention belongs to technical field of waste water processing, more particularly to a kind of system of Sewage advanced treatment.
Background technique
For a long time, the processing of organic wastewater with difficult degradation thereby due to it is difficult to degrade, endanger persistently, processing difficulty etc. it is a series of
Problem, most of organic wastewater are not effectively addressed, and massive discharge of pollutant seriously pollutes environment, threaten the mankind strong
Health.The processing method of organic wastewater with difficult degradation thereby mainly has three categories at present, is respectively: bioanalysis, physical method and chemical oxidization method.
Since Biochemical method is at low cost, convenient operation and management is widely used in various wastewater treatments.But with country
Pollutant emission standard it is increasingly stringent, it is useless that the biologic treating technique that most enterprises use before cannot reach newest industry
Water discharge standard.
The processing method guarantee that many enterprises are combined using biochemical treatment and film process reaches discharge standard.UF membrane skill
Although art treatment effect is pretty good, since the concentrate of generation is difficult, easy to pollute, operation and maintenance technology in film operational process
It is required that the disadvantages of high, investment operating cost is high, using being very limited.
Toxic organic compound in waste water is decomposed into non-toxic or low-toxic by advanced oxidation processes using hydroxyl radical free radical (˙ OH)
Small-molecule substance improves its biodegradability in turn, or even is thoroughly converted into the inorganic matters such as carbon dioxide and water, is a kind of thoroughly place
The method for managing organic pollutants.
Fenton technology is a kind of high-level oxidation technology more valued in recent years, is answered extensively in treatment of Organic Wastewater
With: Fe2+It is catalyzed H2O2The high further oxidation of organic compounds of ˙ OH , ˙ OH of oxidability is generated, but Fenton technology need to adjust pH value,
It adds ferrous sulfate and generates sludge, precipitating flocculation basin need to be built and add flocculant removal iron cement, operation sequence is complicated, and operating cost is inclined
It is high.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned technical problems, and to provide a kind of system of Sewage advanced treatment, structure letters
It is single, it is convenient for safeguarding, it is without secondary pollution.
The technical solution for solving above-mentioned technical problem is as follows:
A kind of system of Sewage advanced treatment, including it is sequentially connected conditioning tank, flocculation sedimentation tank, biochemical reaction tank, heavy
Shallow lake pond and advanced treatment reactor, the top of the sedimentation basin is connected with the input duct of advanced treatment reactor, described
Advanced treatment reactor cylinder in be divided into heterogeneous Fenton synergy ozone reaction zone and biological aerated filter area, bio-aeration
Filter tank area is located at the top of heterogeneous Fenton synergy ozone reaction zone, is filled with aerating filter in the biological aerated filter area
Filler, the heterogeneous Fenton synergy ozone reaction zone is interior to be filled with heterogeneous fenton catalyst, and the input duct is set
It sets in the lower part of cylinder, is connected to heterogeneous Fenton synergy ozone reaction zone, liquid feeding pump, are serially connected in the input duct
The outlet end of two check-valves, pipe-line mixer, liquid feeding pump is connect with second check-valve, and the outlet end and pipeline of second check-valve are mixed
Clutch connection, the liquid feeding end of the pipe-line mixer are also connect with hydrogen peroxide conveyance conduit, the hydrogen peroxide conveyance conduit
On be serially connected with hydrogen peroxide metering pump and first check-valve, the water outlet of the water inlet end and hydrogen peroxide metering pump of the first check-valve
End connection, the lower part of the heterogeneous Fenton synergy ozone reaction zone are microporous aeration disc, the microporous aeration disc and outer
Portion's ozone admission line connection, by being sequentially installed with third check-valves, gas flow except interior on the ozone admission line
Meter, the online instrument of ozone concentration and ozone generator, the cylinder top are arranged gas overflowing mouth, are located at heterogeneous Fenton and cooperate with
Support water distribution air distribution plate is set between ozone reaction area and biological aerated filter area.
It further says, aeration plate is arranged in the adjusting bottom of pond portion.
It further says, is provided with inclined-pipe settler in the sedimentation basin, can guarantee supernatant SS index < 30
When enter advanced treatment reactor.
Further say, the advanced treatment reactor cylinder be cylindrical structure, material be stainless steel, glass reinforced plastic or
Any one of acrylic resin PP.
It further says, the ratio of height to diameter of the advanced treatment reactor cylinder is 5-10.
It further says, the heterogeneous Fenton synergy ozone reaction zone and biological aerated filter area height ratio are 2-3:
1。
It further says, the input duct, hydrogen peroxide conveyance conduit, ozone admission line, first check-valve, second
Check-valves, third check-valves material be stainless steel.
It further says, the gas source of the ozone generator is any one of air-source or source of oxygen.
The present invention also provides a kind of methods using system above processing organic wastewater with difficult degradation thereby, comprising the following steps:
(1) mix homogeneous: organic wastewater with difficult degradation thereby enters conditioning tank by aeration mixing, guarantees that water quality indicator is uniform, together
When be added soda acid guarantee wastewater pH in 6-8；
(2) remove suspended material: the waste water after conditioning tank homogeneous enters flocculation sedimentation tank, and is added into flocculation sedimentation tank
Flocculant carries out flocculation sedimentation, removes bulky grain suspended material and partial organic substances；
(3) biochemical reaction: the waste water after flocculation sedimentation enters the further degradation of organic substances of biochemical reaction tank and ammonia nitrogen；
(4) precipitate: bio-chemical effluent removes sludge suspension object by sedimentation basin, guarantees water outlet SS index < 30mg/L；
(5) oxidation reaction: opening ozone generator, and sedimentation basin supernatant is pumped to pipe-line mixer by liquid feeding pump, with
Enter in reactor shell after the 30% hydrogen peroxide mixing that hydrogen peroxide metering pump is pumped into, in lower part, heterogeneous Fenton synergy ozone is anti-
Under the synergistic effect for answering area's hydrogen peroxide, heterogeneous fenton catalyst and ozone, oxidation reaction occurs, the organic matter in water of degrading,
Waste water after degradation enters top biological aerated filter area, using large quantity of air/oxygen that ozone is brought into as aerobic treatment
Gas source, by aerating filter filler treated water qualified discharge.
It further says, flocculant described in step (2) is one or two kinds of mixture of PAC, PAM.
The beneficial effects of the present invention are:
By introducing heterogeneous fenton catalyst, hydrogen peroxide can be made to react in neutrallty condition, generate hydroxyl free
Base, the organic matter in degrading waste water, the requirement that the adjustment pH required so as to avoid Fenton oxidation system is reacted to acid condition,
Iron cement is not generated in entire reaction simultaneously, without secondary pollution, is organically combined and is protected by the three of Fenton, ozone, biofilter
Card is discharged direct standard discharge.
By introducing ozonation aerated reinforcing advanced oxidation effect, it on the one hand ensure that mixed effect, on the other hand, enhance
The efficiency of organic matter degradation reduces the residence time of waste water in the reactor, reduces the additional amount of hydrogen peroxide, and it is useless to reach raising
The treatment effeciency of water and the purpose for reducing treatment operating costs.
By introducing biofilter, advanced oxidation and biological treatment are combined together, brought into using advanced oxidation ozone
Air as aerobic gas source, guarantee to save aeration power consumption cost in the case of the effect of biofilter；Save technique land occupation face
Product, it is economical and efficient.
Wastewater deep treatment process of the present invention and method have easy to operate, effect stability, operating cost cheap
The advantages of, whole processing technology not will cause secondary pollution.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is system flow chart of the invention；
Fig. 2 is the structural schematic diagram of advanced treatment reactor of the invention；
In figure: 1 being conditioning tank, 2 be flocculation sedimentation tank, 3 be biochemical reaction tank, and 4 be sedimentation basin, and 5 react for advanced treating
Device, 6 be input duct, and 7 be cylinder, and 8 be heterogeneous Fenton synergy ozone reaction zone, and 9 be biological aerated filter area, and 10 be feed liquor
Pump, 11 be second check-valve, and 12 be pipe-line mixer, and 13 be hydrogen peroxide conveyance conduit, and 14 be hydrogen peroxide metering pump, and 15 be first
Check-valves, 16 be microporous aeration disc, and 17 be ozone admission line, and 18 be third check-valves, and 19 be gas flowmeter, and 20 be ozone
The online instrument of concentration, 21 be ozone generator, and 22 be gas overflowing mouth, and 23 be support water distribution air distribution plate.
Specific embodiment
Embodiment 1:
A kind of system of Sewage advanced treatment, including sequentially connected conditioning tank 1, flocculation sedimentation tank 2, biochemical reaction tank 3,
Sedimentation basin 4 and advanced treatment reactor 5, the top of the sedimentation basin 4 are connected with the input duct 6 of advanced treatment reactor 5
It connects, heterogeneous Fenton synergy ozone reaction zone 8 and biological aerated filter is divided into the cylinder 7 of the advanced treatment reactor 5
Area 9, biological aerated filter area 9 are located at the top of heterogeneous Fenton synergy ozone reaction zone 8, the biological aerated filter area 9
It is interior to be filled with aerating filter filler, it is filled with heterogeneous fenton catalyst in the heterogeneous Fenton synergy ozone reaction zone 8,
The lower part of cylinder 7 is arranged in the input duct 6, is connected to heterogeneous Fenton synergy ozone reaction zone 8, the inlet tube
Liquid feeding pump 10, second check-valve 11, pipe-line mixer 12, the outlet end and second check-valve 11 of liquid feeding pump 10 are serially connected on road 6
Connection, the outlet end of second check-valve 11 connect with pipe-line mixer 12, the liquid feeding end of the pipe-line mixer 12 also with it is double
Oxygen water conveyance conduit 13 connects, and is serially connected with hydrogen peroxide metering pump 14 and first check-valve on the hydrogen peroxide conveyance conduit 13
15, the water inlet end of the first check-valve 15 is connect with the water outlet of hydrogen peroxide metering pump 14, the heterogeneous Fenton association
Lower part with ozone reaction area 8 is microporous aeration disc 16, and the microporous aeration disc 16 is connected to external ozone admission line 17,
Existed on the ozone admission line 17 by being sequentially installed with third check-valves 18, gas flowmeter 19, ozone concentration except interior
Gas overflowing mouth 22 is arranged at the top of the cylinder 7 for line instrument 20 and ozone generator 21, and it is anti-to be located at heterogeneous Fenton synergy ozone
Answer setting support water distribution air distribution plate 23 between area 8 and biological aerated filter area 9.
Aeration plate is arranged in 1 bottom of conditioning tank.5 cylinder 7 of advanced treatment reactor is cylindrical structure, and material is stainless steel.
The ratio of height to diameter of 5 cylinder 7 of advanced treatment reactor is 5.Heterogeneous Fenton synergy ozone reaction zone 8 is high with biological aerated filter area 9
Degree is than being 2:1.Input duct 6, hydrogen peroxide conveyance conduit 13, ozone admission line 17, first check-valve 15, second check-valve
11, the material of third check-valves 18 is stainless steel.The gas source of ozone generator 21 is air-source.
It is provided with inclined-pipe settler in the sedimentation basin, can guarantee to enter depth when supernatant SS index < 30
Manage reactor.
Embodiment 2:
Unlike the first embodiment: 5 cylinder 7 of advanced treatment reactor is cylindrical structure, and material is glass reinforced plastic.Depth
The ratio of height to diameter of 5 cylinder 7 for the treatment of reactor is 10.Heterogeneous Fenton synergy ozone reaction zone 8 and 9 height ratio of biological aerated filter area
For 3:1.The gas source of ozone generator 21 is source of oxygen.
Embodiment 3:
Unlike the first embodiment: 5 cylinder 7 of advanced treatment reactor is cylindrical structure, and material is acrylic resin
PP.The ratio of height to diameter of 5 cylinder 7 of advanced treatment reactor is 7.Heterogeneous Fenton synergy ozone reaction zone 8 and biological aerated filter area 9
Height is than being 2.5:1.The gas source of ozone generator 21 is air-source.
Embodiment 4:
The method for handling processing organic wastewater with difficult degradation thereby using the system:
The raw water water 5m of certain industrial chemicals manufacturer3/ h, water-quality COD 2000mg/L, pH 5, ammonia nitrogen 300mg/L,
Total nitrogen 400mg/L, ss 80mg/L, is handled waste water using present treatment System and method for, reaches the newest discharge of chemical industry
Standard, the treatment process are as follows:
Heterogeneous fenton catalyst is loaded into the reaction of the heterogeneous Fenton synergy ozone in advanced treatment reactor cylinder 7
Area 8, loadings are the 2/3 of reactor shell volume, and support water distribution air distribution plate 23 is located at the 2/3 of advanced treatment reactor height
Place, on support water distribution air distribution plate 23 load filter tank packing layer, loadings be lower than outer discharge outlet 30cm, filler be mainly haydite,
Active carbon, pelelith etc. guarantee that the residence time of entire depth treatment reactor 5 is 1h；Waste water enters conditioning tank and carries out homogeneous,
After adding alkali that pH is adjusted to 7, flocculation sedimentation tank 2 is fed the water by pump first, PAC, PAM is added to flocculate；After flocculation sedimentation
Waste water flow into biochemical reaction tank 3 carry out denitrogenation and degradation COD, biochemical reaction tank 3 be discharged fair current to sedimentation basin 4 remove biochemistry
Sludge；4 supernatant of sedimentation basin is pumped into advanced treatment reactor 5 by liquid feeding pump 10, and in the process, hydrogen peroxide metering pump 14 is opened
It opens, hydrogen peroxide enters pipe-line mixer 12 by first check-valve 15, enters pipe-line mixer 12 with by second check-valve 11
Supernatant be sufficiently mixed after enter advanced treatment reactor 5 lower reaction zone, the additional amount 1.5kg/ of 27.5% hydrogen peroxide
Ton water；While supernatant intake pump is opened, ozone generator 21 is opened, ozone generator 21 is using air-source as gas source, warp
Cross ozone generator 21 containing ozone gas by the online instrument 20 of ozone concentration, gas flowmeter 19 and third check-valves 18 into
Enter microporous aeration disc 16, aeration quantity guarantees in 50m3/ h, ozone concentration 2%；In the common work of hydrogen peroxide, catalyst and ozone
With lower degradation of organic substances, waste water after lower area reaction on be pushed into top biofilter reaction zone and further remove COD, utilize
The air that ozone is brought into is as aerobic gas source.The 5 main Con trolling index of outlet aquametry of advanced treatment reactor is taken, in triplicate
It measures, COD mean concentration is 31mg/L in final efflux wastewater, and ammonia nitrogen 2mg/L, total nitrogen 15mg/L, ss 12mg/L reach water
Pollute special emission limit standard.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to any simple modification to the above embodiments in technical spirit of the invention, equivalent variations, guarantor of the invention is each fallen within
Within the scope of shield.
Claims (10)
1. a kind of system of Sewage advanced treatment, which is characterized in that including sequentially connected conditioning tank, flocculation sedimentation tank, biochemistry
Reaction tank, sedimentation basin and advanced treatment reactor, the top of the sedimentation basin and the input duct phase of advanced treatment reactor
It connects, is divided into heterogeneous Fenton synergy ozone reaction zone and biological aerated filter in the cylinder of the advanced treatment reactor
Area, biological aerated filter area are located at the top of heterogeneous Fenton synergy ozone reaction zone, fill out in the biological aerated filter area
Filled with aerating filter filler, heterogeneous fenton catalyst is filled in the heterogeneous Fenton synergy ozone reaction zone, it is described
Input duct the lower part of cylinder is set, be connected to heterogeneous Fenton synergy ozone reaction zone, gone here and there in the input duct
It is connected to liquid feeding pump, second check-valve, pipe-line mixer, the outlet end of liquid feeding pump is connect with second check-valve, second check-valve
Outlet end is connect with pipe-line mixer, and the liquid feeding end of the pipe-line mixer is also connect with hydrogen peroxide conveyance conduit, described
Hydrogen peroxide metering pump and first check-valve, the water inlet end and dioxygen of the first check-valve are serially connected on hydrogen peroxide conveyance conduit
The water outlet of water metering pump connects, and the lower part of the heterogeneous Fenton synergy ozone reaction zone is microporous aeration disc, described
Microporous aeration disc is connected to external ozone admission line, is stopped on the ozone admission line by being sequentially installed with third except interior
Valve, gas flowmeter, the online instrument of ozone concentration and ozone generator are returned, gas overflowing mouth is set at the top of the cylinder, is located at
Support water distribution air distribution plate is set between heterogeneous Fenton synergy ozone reaction zone and biological aerated filter area.
2. the system of Sewage advanced treatment according to claim 1, which is characterized in that the adjusting bottom of pond portion, which is arranged, to expose
Gas disk.
3. the system of Sewage advanced treatment according to claim 1, which is characterized in that be provided in the sedimentation basin tiltedly
Pipe settler can guarantee to enter advanced treatment reactor when supernatant SS index < 30.
4. the system of Sewage advanced treatment according to claim 1, which is characterized in that the advanced treatment reactor cylinder
Body is cylindrical structure, and material is any one of stainless steel, glass reinforced plastic or acrylic resin PP.
5. the system of Sewage advanced treatment according to claim 1, which is characterized in that the advanced treatment reactor cylinder
The ratio of height to diameter of body is 5-10.
6. the system of Sewage advanced treatment according to claim 1, which is characterized in that the heterogeneous Fenton collaboration is smelly
Oxygen reaction zone and biological aerated filter area height ratio are 2-3:1.
7. the system of Sewage advanced treatment according to claim 1, which is characterized in that the input duct, hydrogen peroxide
Conveyance conduit, ozone admission line, first check-valve, second check-valve, the material of third check-valves are stainless steel.
8. the system of Sewage advanced treatment according to claim 1, which is characterized in that the gas source of the ozone generator
For any one of air-source or source of oxygen.
9. a kind of method using the described in any item system processing organic wastewater with difficult degradation thereby of claim 1-8, which is characterized in that
The following steps are included:
(1) mixing homogeneous: organic wastewater with difficult degradation thereby enters conditioning tank by aeration mixing, guarantees that water quality indicator is uniform, adds simultaneously
Entering soda acid guarantees wastewater pH in 6-8；
(2) remove suspended material: the waste water after conditioning tank homogeneous enters flocculation sedimentation tank, and flocculation is added into flocculation sedimentation tank
Agent carries out flocculation sedimentation, removes bulky grain suspended material and partial organic substances；
(3) biochemical reaction: the waste water after flocculation sedimentation enters the further degradation of organic substances of biochemical reaction tank and ammonia nitrogen；
(4) precipitate: bio-chemical effluent removes sludge suspension object by sedimentation basin, guarantees water outlet SS index < 30mg/L；
(5) oxidation reaction: ozone generator is opened, sedimentation basin supernatant is pumped to pipe-line mixer by liquid feeding pump, with dioxygen
Enter in reactor shell after the 30% hydrogen peroxide mixing that water metering pump is pumped into, in the heterogeneous Fenton synergy ozone reaction zone in lower part
Under the synergistic effect of hydrogen peroxide, heterogeneous fenton catalyst and ozone, oxidation reaction occurs, the organic matter in water of degrading, degradation
Waste water afterwards enters top biological aerated filter area, using a large amount of oxygen that ozone is brought into as the gas source of aerobic treatment, warp
Cross aerating filter filler treated water qualified discharge.
10. according to the method described in claim 9, it is characterized in that, flocculant described in step (2) is one kind of PAC, PAM
Or two kinds of mixture.
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| CN116282469A (en) * | 2023-02-10 | 2023-06-23 | 河北工业大学 | Method for treating furfural wastewater by adopting ozone Fenton coupling |
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