CN104529083A - Pressure type ozone reaction and microbubble biological aerated filter sewage deep processing device and method - Google Patents
Pressure type ozone reaction and microbubble biological aerated filter sewage deep processing device and method Download PDFInfo
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- CN104529083A CN104529083A CN201410850428.5A CN201410850428A CN104529083A CN 104529083 A CN104529083 A CN 104529083A CN 201410850428 A CN201410850428 A CN 201410850428A CN 104529083 A CN104529083 A CN 104529083A
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 239000010865 sewage Substances 0.000 title claims abstract description 55
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 111
- 239000001301 oxygen Substances 0.000 claims abstract description 57
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 57
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000007789 gas Substances 0.000 claims abstract description 35
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 38
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 229910001882 dioxygen Inorganic materials 0.000 claims description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 8
- 230000000630 rising effect Effects 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 6
- -1 hydroxyl radical free radical Chemical class 0.000 claims description 5
- 238000005842 biochemical reaction Methods 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 2
- 239000000356 contaminant Substances 0.000 claims description 2
- 230000009089 cytolysis Effects 0.000 claims description 2
- 238000006731 degradation reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000036632 reaction speed Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 238000005273 aeration Methods 0.000 description 4
- 238000006385 ozonation reaction Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000002481 rotproofing Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003403 water pollutant Substances 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
- C02F1/72—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
- 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
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
-
- 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
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 discloses a pressure type ozone reaction and microbubble biological aerated filter sewage deep processing device and method, and belongs to the field of water processing. The device comprises an ozone generation device, a sewage inlet pipe, a gas dissolving device, a press type ozone reactor and a biological aerated filter, wherein both the oxygen source ozone generation device and the sewage inlet pipe are connected to a water inlet pipe of the pressure type ozone reactor through the gas dissolving device, a pressure-release water outlet pipe of the pressure type ozone reactor is connected to the bottom in the biological aerated filter, a dissolved gas release head is connected with the front end of a gas outlet pipe, and the dissolved gas release head is arranged in the biological aerated filter. The gas dissolving device, the pressure type ozone reactor and the dissolved gas release head used for releasing pressure are arranged, and therefore the ozone reaction is conducted in the high-pressure state, the reaction speed is increased, the reaction effect is good, pressure-reduction release can be achieved for high-pressure gas-dissolved water, oxygen is released in the form of microbubbles, the microbubble mass transfer speed is high, the oxygen utilization rate is increased, residual oxygen generated by the ozone generation is effectively used, and running expenses are reduced.
Description
Technical field
The present invention relates to sewage treatment area, particularly relate to a kind of pressure type ozone reaction and microbubble BAF sewage water advanced treatment apparatus and method.
Background technology
Along with the increasingly stringent of national requirements for environmental protection, the current sewage treatment process generally adopted is difficult to reach emission standard, and therefore the advanced treatment of sewage seems particularly important.Ozonation technology is a kind of feasible further treatment technique, but its higher investment and working cost limit its application in advanced treatment of wastewater.The investment of ozonation technology is mainly its ozone generating apparatus and ozone reactor, its working cost mainly the electricity charge and adopt pure oxygen occur time pure oxygen expense.Because the solubleness of ozone at normal temperatures and pressures in water is lower, cause the speed of reaction of ozone and Organic substance in water relatively slow, when therefore adopting conventional ozone reactor to carry out advanced treatment of wastewater, need longer hydraulic detention time.Again due to the corrodibility of ozone, ozone reactor is made to need adopt high-quality stainless steel or carry out specific rotproofing to equipment.In sewage disposal, because water pollutant content is relatively high, usually need to adopt pure oxygen aeration to obtain higher ozone concn, the expense that pure oxygen occurs and equipment also further increase the cost of ozonation technology.And pure oxygen obtained ozone concn occurs usually only between 7% ~ 10%, this makes a large amount of pure oxygens be wasted.Therefore pass through high efficiency ozone reaction to reduce ozone reactor volume, reduce working cost by raising ozone and pure oxygen utilising efficiency and become the key solving ozonation technology application problem.The granular filler of the in-built raising specific surface area of BAF is as the carrier of biofilm development; Carry out aeration in filter material layer bottom and provide oxygen source for microorganism, the organic pollutant in sewage is degraded under the biomembranous effect of filling surface; Filler plays physical filtering effect simultaneously, BAF Chang Zuowei sewage water advanced treatment apparatus.Independent employing BAF carries out advanced treatment, but limited for the removal effect of hardly degraded organic substance, and before BAF, carry out ozone Oxidation Treatment, part hardly degraded organic substance can be decomposed, improve Biodegradability of Wastewater, thus improve the treatment effect of BAF.
The patent No. is that the patent of CN 100494103C provides a kind of integrated ozone and aeration biological filtering pool water treatment apparatus, the patent of patent No. CN 101376556 B provides the waste disposal plant that a kind of ozone oxidation sterilizing is combined with downflow type aerating biological filter, both are all combinations of ozone oxidation and BAF, equal ozone and the oxygen of making is utilized, and the key distinction is that water flow mode is flow up and down respectively.
But the ozone reaction part of above-mentioned existing two kinds for the treatment of unit is normal temperature and pressure, and ozone reaction speed is lower.And adopting the mode of Venturi tube to carry out mixing wastewater with air, gas-water ratio is relatively low, and the ozone dissolved in and amount of oxygen are also corresponding lower, limit its effect.
Summary of the invention
Based on the problem existing for above-mentioned prior art, for existing ozone oxidation and BAF combined process ozone reaction efficiency is low, oxygen utilization rate is low problem, the invention provides the advanced treatment method for sewage water that a kind of pressure type ozone reaction and BAF combine, energy accelerate ozone to the rate of oxidation of pollutent, and forms microbubble effectively to utilize oxygen by the releasing oxygen that reduces pressure in BAF.
For solving the problems of the technologies described above, the invention provides a kind of pressure type ozone reaction and microbubble BAF sewage water advanced treatment apparatus, comprising: ozone generating-device, sewage water inlet pipe, air-dissolving apparatus, pressure type ozone reactor and BAF; Wherein,
Described oxygen source ozone generating unit and sewage water inlet pipe are all connected to the water inlet pipe of described pressure type ozone reactor by described air-dissolving apparatus; The pressure release rising pipe of described pressure type ozone reactor is connected to described BAF inner bottom part, and described escape pipe front end is connected with molten gas release head, and this molten gas release head is located in described BAF.
In above-mentioned treatment unit, described air-dissolving apparatus comprises:
Air dissolved pump, be provided with water-in, inlet mouth and gas mixture water discharge pipe, described water-in is connected to described sewage water inlet pipe, and described inlet mouth is connected to the ozonized oxygen gas gas mixture escape pipe of described oxygen source ozone generating unit;
And first tensimeter, be located on described gas mixture water discharge pipe.
In above-mentioned treatment unit, described pressure type ozone reactor comprises:
Pressure-resistant reactor, is in described water inlet pipe end and is provided with water distribution board and is in water outlet pipe end and is provided with water collection sheet, described water distribution board and water collection sheet are equipped with equally distributed aperture in it; This pressure-resistant reactor is provided with the second tensimeter;
The pressure release rising pipe of described pressure type ozone reactor is provided with pressure relief valve.
In above-mentioned treatment unit, described molten gas release head is bell mouth shape pipeline.
In above-mentioned treatment unit, described oxygen source ozone generating unit comprises:
Ozonizer, be provided with the oxygen intake pipe connecting external oxygen feedway and the ozonized oxygen gas gas mixture escape pipe connecting described air-dissolving apparatus, described oxygen intake pipe is provided with oxygen valve and oxygen flow meter successively, and described ozonized oxygen gas gas mixture escape pipe is provided with vacuum breaker.
In above-mentioned treatment unit, described water inlet pipe is connected with hydrogen peroxide supply-pipe;
Described water inlet pipe is provided with successively water intaking valve and feed water flow gauge;
Described hydrogen peroxide supply-pipe is provided with successively hydrogen peroxide valve and hydrogen peroxide under meter.
In above-mentioned treatment unit, described BAF is provided with rising pipe and is connected to the return line of described sewage water inlet pipe, and described return line comprises: pipeline and the reverse flow valve be located at successively on described pipeline and return flow meter.
The present invention also provides a kind of pressure type ozone reaction and microbubble BAF advanced treatment method for sewage water, adopts treatment unit of the present invention, comprises the following steps:
The ozonized oxygen gas gas mixture that oxygen source ozone generating unit produces and sewage enter air-dissolving apparatus to carry out pressurization and mixes, ozone and oxygen dissolve in sewage, mixed high pressure dissolved air water enters the reaction that pressure type ozone reactor carries out ozone oxidation pollutent, after reaction, ozone in water levels off to zero, high pressure dissolved air water enters decompression release in BAF through molten gas release head afterwards, in high pressure dissolved air water, the oxygen of Excessive lysis is released in BAF with microbubble form, for biochemical reaction provides oxygen, degradation of contaminant, after BAF process, standard water discharge is discharged.
Above-mentioned treatment process also comprises:
By regulating the pressure of quantity of reflux and adjustment air-dissolving apparatus, regulate the dosage of ozone and oxygen;
And the hydrogen oxide supply-pipe by described sewage water inlet pipe is arranged, in sewage, add hydrogen peroxide produce hydroxyl radical free radical to hardly degraded organic substance of degrading for ozone reaction.
Beneficial effect of the present invention is: by arranging air-dissolving apparatus, ozone gas mixture is mixed at air-dissolving apparatus inner high voltage with sewage, a large amount of ozone and oxygen is made to be dissolved in sewage, dirty ozone in water and oxygen concentration comparatively conventional aeration exceed several times, pressure type ozone reactor is set, the high pressure dissolved air water that air-dissolving apparatus is exported carries out ozone oxidation reaction with high pressure conditions in pressure type ozone reactor, ozone reaction speed also exceeds several times compared with the reaction under normal temperature and pressure, therefore the ozone reactor residence time can significantly shorten, and significantly reduces facility investment.The molten gas release head of high pressure dissolved air water through arranging in BAF carries out decompression release, oxygen in water discharges with the form of microbubble, and microbubble rate of mass transfer is high, can improve oxygen utilization rate, effectively utilize ozone that remaining oxygen occurs, working cost is reduced.Sewage COD after ozonize reduces, and biodegradability improves, then carries out BAF process, and water outlet COD reduces further, and whole technique is more energy-efficient.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the pressure type ozone reaction that provides of the embodiment of the present invention and BAF advanced treatment apparatus;
Fig. 2 is water distribution board and the water collection sheet schematic diagram of the pressure type ozone reactor that the embodiment of the present invention provides;
In figure, each label is: 1---ozonizer; 2---air dissolved pump; 3---pressure type ozone reactor; 4---water collection sheet; 5---water distribution board; 6---BAF; 7---molten gas release head; 8---pressure relief valve; 9---water intaking valve; 10---reverse flow valve; 11---oxygen valve; 12---vacuum breaker; 13---feed water flow gauge; 14---oxygen flow meter; 15---return flow meter; 16---the first tensimeter; 17---the second tensimeter; 18---hydrogen peroxide valve; 19---hydrogen peroxide under meter.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
Below in conjunction with specific embodiment, the invention will be further described.
As shown in Figure 1, pressure type ozone reaction of the present invention and BAF sewage water advanced treatment apparatus comprise: oxygen source ozone generating unit, air-dissolving apparatus, pressure type ozone reactor 3 and BAF 6; The ozonizer 1 of oxygen source ozone generating unit is connected with the air dissolved pump 2 of air-dissolving apparatus by vacuum breaker 12, for providing oxygen sewage and ozone mixed gas needed for ozone needed for ozone reaction and BAF 6 to enter air dissolved pump 2, dissolved in rapidly in sewage by impeller high speed rotating and pump inner high voltage environment in air dissolved pump 2; Air dissolved pump 2 outlet is provided with the first tensimeter 16, is used for showing air dissolved pump 2 top hole pressure, the pressure of air dissolved pump 2 can be regulated as required to control the meltage of ozone and oxygen; Air dissolved pump 2 is exported and is connected with pressure type ozone reactor 3 by pipeline; Pressure type ozone reactor 3 is for carrying out ozone reaction; Built-in water distribution board 5 and water collection sheet 6, water distribution board 5 and water collection sheet 4 are evenly distributed with aperture, for water distribution uniformity, prevent short stream; The second tensimeter 17 pressure type ozone reactor 6 is equipped with, for showing the pressure in reactor; Pressure type ozone reactor 3 exports and is connected BAF 6 by pressure release rising pipe with pressure relief valve 8; The end of pressure release rising pipe connects molten gas release head 7, and this pressure release 7 is bell mouth shape pipeline; Hydrogen peroxide adds in sewage water inlet pipe by pipeline, and reacting with ozone in air dissolved pump 2 and pressure type ozone reactor 3 produces highly active hydroxyl radical free radical, effectively can remove Persistent organic pollutants; BAF 6 water outlet is mixed with wastewater influent by return line, regulates quantity of reflux by reverse flow valve 10 and return flow meter 15, and the setting of return line is in order to dosage and the adjustment water inlet Pollutant levels by regulating quantity of reflux to control ozone and oxygen; Oxygen hose and water inlet pipe are equipped with valve and under meter, for regulating air water flow.
This treatment unit process of disposing of sewage is: oxygen is by entering ozonizer 1 after oxygen valve 11 and oxygen flow meter 14 adjust flux, and the ozone of generation and the mixed gas of oxygen enter air dissolved pump 2 by vacuum breaker 12; Sewage is by also entering air dissolved pump 2 after water intaking valve 9 and feed water flow gauge 13 adjust flux simultaneously; Sewage and ozonized oxygen gas mixed gas are dissolved in a large number in sewage by impeller high speed rotating and pump inner high voltage in air dissolved pump 2; The first tensimeter 16 that air dissolved pump 2 exports, for showing air dissolved pump 2 top hole pressure, when subsequent reactions needs higher ozone and amount of oxygen, can improve the pressure of air dissolved pump 2; Otherwise the pressure of air dissolved pump 2 can be reduced.Air dissolved pump 2 water outlet enters pressure type ozone reactor 3, carries out ozone reaction within it, and because pressure is high, ozone solution degree is large, therefore ozone reaction speed also corresponding raising; Water distribution board 5 in ozone reactor 3 and water collection sheet 4 make uniform fluid flow, prevent short stream; Second tensimeter 17 shows the pressure in reactor, by the pressure in the adjustable reactor 3 of pressure relief valve 8; After ozone reaction is complete, ozone reactor 3 water outlet enters BAF 6 by molten gas release head 7, and because pressure is die-offed, the oxygen dissolved in high pressure dissolved air water discharges with microbubble form, for the biochemical reaction in BAF 6 provides oxygen, degrade further for pollutent.In addition, inlet channel also can add hydrogen peroxide, the reaction of hydrogen peroxide and ozone is utilized to produce a large amount of high reactivity hydroxyl radical free radical, can most organic in the oxidizing water of non-selectivity, further strengthening pressure type ozone reaction, hydrogen peroxide also by entering in sewage after hydrogen peroxide valve 18 and hydrogen peroxide under meter 19 adjust flux, produces hydroxyl radical free radical with ozone reaction, for the oxidation of hardly degraded organic substance in air dissolved pump 2 and ozone reactor 3.Regulated the quantity of reflux of BAF 6 by reverse flow valve 10 and return flow meter 15, improve the dosage that quantity of reflux can increase ozone and oxygen.
Below enumerate embodiment so that effect of the present invention to be described, but right of the present invention is not limited only to this.
Embodiment 1:
Mix sinking pool effluent with the pressure type ozone reaction of the embodiment of the present invention and microbubble BAF sewage water advanced treatment apparatus process coal gasification wastewater, treatment capacity is 0.5m
3/ h, temperature is 20 DEG C, and air dissolved pump top hole pressure is 0.45MPa, and steam-water ratio is 10%, and ozone generator outlet ozone concn is 10%.The pressure type ozone reactor residence time is 5min, and the BAF residence time is 3h, reflux ratio 100%.Former water COD is 142mg/L, and pressure type ozone reactor process water outlet COD is 108mg/L, and BAF process water outlet COD is 79mg/L.
Embodiment 2:
With pressure type ozone reaction and the microbubble BAF sewage water advanced treatment apparatus process pharmaceutical factory secondary clarifier effluent of the embodiment of the present invention, treatment capacity is 0.5m
3/ h, temperature is 20 DEG C, and air dissolved pump top hole pressure is 0.5MPa, and steam-water ratio is 12%, and ozone generator outlet ozone concn is 10%.The pressure type ozone reactor residence time is 8min, and the BAF residence time is 4h, reflux ratio 150%, and hydrogen peroxide dosage is 10mg/L.Former water COD is 156mg/L, and pressure type ozone reactor process water outlet COD is 109mg/L, and BAF process water outlet COD is 76mg/L.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (9)
1. pressure type ozone reaction and a microbubble BAF sewage water advanced treatment apparatus, is characterized in that, comprising: ozone generating-device, sewage water inlet pipe, air-dissolving apparatus, pressure type ozone reactor and BAF; Wherein,
Described oxygen source ozone generating unit and sewage water inlet pipe are all connected to the water inlet pipe of described pressure type ozone reactor by described air-dissolving apparatus; The pressure release rising pipe of described pressure type ozone reactor is connected to described BAF inner bottom part, and described escape pipe front end is connected with molten gas release head, and this molten gas release head is located in described BAF.
2. pressure type ozone reaction according to claim 1 and microbubble BAF sewage water advanced treatment apparatus, it is characterized in that, described air-dissolving apparatus comprises:
Air dissolved pump, be provided with water-in, inlet mouth and gas mixture water discharge pipe, described water-in is connected to described sewage water inlet pipe, and described inlet mouth is connected to the ozonized oxygen gas gas mixture escape pipe of described oxygen source ozone generating unit;
And first tensimeter, be located on described gas mixture water discharge pipe.
3. ozone reaction according to claim 1 and microbubble BAF sewage water advanced treatment apparatus, is characterized in that, described pressure type ozone reactor comprises:
Pressure-resistant reactor, is in described water inlet pipe end and is provided with water distribution board and is in water outlet pipe end and is provided with water collection sheet, described water distribution board and water collection sheet are equipped with equally distributed aperture in it; This pressure-resistant reactor is provided with the second tensimeter;
The pressure release rising pipe of described pressure type ozone reactor is provided with pressure relief valve.
4. the pressure type ozone reaction according to claim 1 or 3 and microbubble BAF sewage water advanced treatment apparatus, is characterized in that, described molten gas release head is bell mouth shape pipeline.
5. the pressure type ozone reaction according to any one of claims 1 to 3 and microbubble BAF sewage water advanced treatment apparatus, is characterized in that, described oxygen source ozone generating unit comprises:
Ozonizer, be provided with the oxygen intake pipe connecting external oxygen feedway and the ozonized oxygen gas gas mixture escape pipe connecting described air-dissolving apparatus, described oxygen intake pipe is provided with oxygen valve and oxygen flow meter successively, and described ozonized oxygen gas gas mixture escape pipe is provided with vacuum breaker.
6. the pressure type ozone reaction according to any one of claims 1 to 3 and microbubble BAF sewage water advanced treatment apparatus, is characterized in that, described water inlet pipe is connected with hydrogen peroxide supply-pipe;
Described water inlet pipe is provided with successively water intaking valve and feed water flow gauge;
Described hydrogen peroxide supply-pipe is provided with successively hydrogen peroxide valve and hydrogen peroxide under meter.
7. the pressure type ozone reaction according to any one of claims 1 to 3 and microbubble BAF sewage water advanced treatment apparatus, it is characterized in that, described BAF is provided with rising pipe and is connected to the return line of described sewage water inlet pipe, and described return line comprises: pipeline and the reverse flow valve be located at successively on described pipeline and return flow meter.
8. pressure type ozone reaction and a microbubble BAF advanced treatment method for sewage water, is characterized in that, adopts the treatment unit described in any one of claim 1 to 7, comprise the following steps:
The ozonized oxygen gas gas mixture that oxygen source ozone generating unit produces and sewage enter air-dissolving apparatus to carry out pressurization and mixes, ozone and oxygen dissolve in sewage, mixed high pressure dissolved air water enters the reaction that pressure type ozone reactor carries out ozone oxidation pollutent, after reaction, ozone in water levels off to zero, high pressure dissolved air water enters decompression release in BAF through molten gas release head afterwards, in high pressure dissolved air water, the oxygen of Excessive lysis is released in BAF with microbubble form, for biochemical reaction provides oxygen, degradation of contaminant, after BAF process, standard water discharge is discharged.
9. pressure type ozone reaction according to claim 8 and microbubble BAF advanced treatment method for sewage water, is characterized in that, also comprise:
The quantity of reflux of the return line arranged by regulating BAF to described sewage water inlet pipe and the pressure of adjustment air-dissolving apparatus, regulate the dosage of ozone and oxygen;
And the hydrogen oxide supply-pipe by described sewage water inlet pipe is arranged, in sewage, add the step that hydrogen peroxide and ozone reaction generate hydroxyl radical free radical.
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| CN201410850428.5A CN104529083B (en) | 2014-12-30 | 2014-12-30 | Pressure type ozone reaction and microbubble BAF sewage water advanced treatment apparatus |
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| CN201410850428.5A CN104529083B (en) | 2014-12-30 | 2014-12-30 | Pressure type ozone reaction and microbubble BAF sewage water advanced treatment apparatus |
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| CN104529083B CN104529083B (en) | 2016-08-24 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105601038A (en) * | 2015-12-29 | 2016-05-25 | 北京翰祺环境技术有限公司 | Wastewater advanced treatment method using post-ozonation reflux and secondary oxidation |
| CN106315821A (en) * | 2016-10-13 | 2017-01-11 | 广东开源环境科技有限公司 | Ozone-BAF (Biological Aerated Filter) sewage treatment equipment |
| CN107381701A (en) * | 2017-08-22 | 2017-11-24 | 西安建筑科技大学 | A kind of ozone air-float device and method supplied using constant pressure microbubble generator |
| CN110330093A (en) * | 2019-07-10 | 2019-10-15 | 扬州大学 | A kind of pressure air-dissolving strengthens ozone pre-oxidation capability device and its processing method |
| CN110386634A (en) * | 2019-08-27 | 2019-10-29 | 青岛思普润水处理股份有限公司 | A kind of adjustable O of operating pressure3/H2O2/ UV advanced oxidation system and its operation process |
| CN110589958A (en) * | 2019-09-28 | 2019-12-20 | 百奥源生态环保科技(北京)有限公司 | Supersaturated dissolved oxygen equipment and method |
| CN111747600A (en) * | 2019-03-26 | 2020-10-09 | 中蓝连海设计研究院有限公司 | Ozone oxidation-biochemical coupling water treatment method |
| CN112960760A (en) * | 2021-02-10 | 2021-06-15 | 北京启元汇通水务科技股份有限公司 | Preparation device and preparation method of hydroxyl radical and hydroxyl radical solution |
| CN113905809A (en) * | 2019-03-28 | 2022-01-07 | 恩博特系统有限责任公司 | Gas injection system for optimizing nanobubble formation in a disinfecting solution |
| CN115010241A (en) * | 2022-07-01 | 2022-09-06 | 扬州大学 | Ozone dissolved air oxidation device and method with high air-water ratio |
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