CN1362379A - Ozone oxidizing method of processing water - Google Patents
Ozone oxidizing method of processing water Download PDFInfo
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- CN1362379A CN1362379A CN 01108001 CN01108001A CN1362379A CN 1362379 A CN1362379 A CN 1362379A CN 01108001 CN01108001 CN 01108001 CN 01108001 A CN01108001 A CN 01108001A CN 1362379 A CN1362379 A CN 1362379A
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Abstract
The present invention utilizes the combination of ozonization and electric air-float to treat domestic sewage and paper-making sewage, which is haracterized by that firstly, the sewage is filtered to remove suspended matter and larger organism, then fed nto ozonization chamber to make oxidation and degradation to remove harmful substances from the water, then the water is undergone the process of electric air-float decomposition. Its sewage-treating effect is good.
Description
The present invention relates to a kind of method of water treatment, can utilize present method that papermaking wastewater is handled especially.
Usually the method for water being handled is chemical process such as chlorine method, iodine method etc., and physical method is uviolizing, adsorption filtration etc., also useful biological degradation method etc.The method of prior art treating water or because the cost height, or, complicated operation bad owing to treatment effect, the inconvenient restriction of use are promoted the use of.
Ozone is a kind of extremely strong oxygenant, its standard oxidation potential is-2.07Ve, be only second to fluorine and atomic oxygen, ozone still is a kind of broad-spectrum biocide, at normal temperatures to prokaryotic organism, straight nuclear biology, protozoon, metazoan all have extremely strong kill activity, can finish for bacterium thunder bacterium, algae, virus, moment and kill disinfection.Ozone is in sterilization, circuitous poisonous, the nuisance of all right effectively degraded, plant matter, sulfide, kelene, agrochemical as alkane, benzene, phenol, naphthalene, alkylbenzene, chlorobenzene, oil of mirbane, organic amine, wooden Lee, corruption, can also destroy the prussiate and the strong carcinogens such as benzo (@) pyrene, benzanthrene of severe toxicity, ozone can also be removed metal ions such as iron in the water, manganese, and is also very remarkable to turbidity, colourity and the special odor removal effect of water body.And ozone finally is reduced to oxygen, does not have effect of paying of other any poison and secondary environmental pollution.But the application of ozone in water treatment at present only limits to sterilization.
The purpose of this invention is to provide and a kind ofly utilize ozone and electric floating combining to carry out the method for water treatment, particularly unsolved papermaking wastewater is for many years carried out water treatment.
The present invention realizes with following technical scheme: carry out water treatment with ozone and electric floating combining, its step is as follows:
(1) water filtration is removed the middle suspended substance that anhydrates, silt particle and than mcroorganism etc.
(2) quick-fried gas makes readily oxidizable substance oxidation in the water under 0.6～1MPa pressure.
(3) in ozonation chamber water is carried out ozone oxidation, ozone concn is at 0.05～0.5ppm, and gas and water volume ratio are 1: 3～5, and oxidization time 25～30 minutes adds UV-irradiation, ultrasonic oscillation simultaneously.
(4) oxidizing water is controlled under the situation of every square metre of 5～20A electric floating 20～30 minutes in current density.
(5) remove by filter sediment.
(6) secondary ozone Oxidation Treatment.
The present invention can be used for handling all kinds of papermaking wastewaters, sanitary sewage, also is applicable to the processing of tap water, thoroughly eliminated the secondary pollution that the chemical process treating water causes, and sterilization effect is remarkable especially.
Be that example further describes below with the papermaking wastewater:
Fig. 1 is a papermaking wastewater treatment project synoptic diagram;
With reference to Fig. 1, sewage (1) enters pond (3) through valve (2) control, and the front portion of (3) is provided with a coarse filtration screen cloth (4) in the pond, and this filter screen is made with galvanized wire or Stainless Steel Cloth, and its area can be at 0.5～5m
2Select.This filter screen is with being at least two, and the base turns forward during placement.One of them filter screen is replaced when doing to remove first filter screen, filter screen can be left the water with mechanism (5), and the foul above removing, one fine filtering cloth (6) is set at the coarse strainer rear portion, filter cloth (6) can be the backrush formula has a roll that the dirt settling on the filter cloth is rolled into pancake when filter cloth is done backrush campaign at a slow speed above it, falling into hopper during to certain position is then regularly removed by the scraper plate on the hopper, the rear portion of (3) is big volumetrical filter tank (7) in the pond, the bottom in filter tank (7) is furnished with header (8), the bottom of header (8) beat the whole header of a lot of apertures wrap up in bundle more than 2 layers glass wool cloth with every fine sand.The top filling of arm (8) fine sand+charcoal+thin piece+handstone of hard coal etc. that catchments is made drainage layer (9), the auxilliary filter cloth (10) of establishing in the top of drainage layer (9), filter cloth (10) is made the band frame, available machinery or manually propose the dirt settling above removing when clear pond.Should there be certain gradient the bottom surface in pond (3) to a direction, and the lowest part on the inclined-plane is provided with water drain valve (11) and thoroughly puts clean use.The arm (8) that catchments is pooled to water header (12) and inserts water pump (4) through valve (13) control, the discharge pressure of water pump (14) is controlled between 0.25～0.4MPa, water pump (14) water outlet enters jet gas explosion device (6) through vacuum breaker (15) and injects pressure water pot (17), and the applying pressure of pressure water pot should be selected at 0.6～1MPa.The gas that enters of jet gas explosion device is that pure oxygen (also available normal air) is when using pure oxygen, small-sized water treatment available oxygen gas cylinder (18) is made source of the gas, the available oxygenerator in large-scale water treatment field, oxygen source should be equipped with regulator (19), through under meter (20) indication flow, can be between 1～5% (with water volume ratio) with amount of oxygen.Aqueous reflux is in air machinery when answering loaded check valve (21) to shut down to prevent water pump (14) between (16) import of jet gas explosion device and under meter on the pipeline; the effect of making quick-fried gas source of the gas with oxygen is that pending water mixes by force through jet gas explosion device and oxygen and injects in the pressure-pot (17), promote the oxidation and increase fusion oxygen under the high pressure effect.Juice lever indicator tube (22) is equipped with in pressure-pot (17) outside, and electro connecting pressure gauge (23) is equipped with at the top, and it cooperates the control water pump to move in the nominal pressure range with electric machine control system (24).Pressure-pot (17) top portion is equipped with the electrode (26) of liquid-level controller (25), when liquid level departs from operational height in the jar (17), regulate regulator (19) to remain on the certain altitude scope, rising pipe (27) is arranged at the bottom of pressure-pot (17), escape pipe (28) is arranged at top, tank top gas is through the control (identical or close with the flow of under meter (20) when regulating) of flow director (29), mix with water through under meter (31) control through valve (30) and to enter jet gas explosion device (32), valve (33) is equipped with on the next door of under meter (31), when stable, can close under meter (31) valve (33) of flowing through and send into, jet gas explosion device (32) cross that gas port is equipped with vacuum breaker (34) in case (32) when fault is arranged water enter in the ozonizer system.
(35) are ozonator cells in the schema, according to required ozone amount mounting ceramics sheet ozonizer, generally select for use 20W～60W some be installed in parallel the insulation and the sludge proof support on, 50～the 100mm of being separated by between sheet and the sheet, and the face and the face of sheet dressed up uneven angle state, used connection lead also destroys the parallel wiring trend as far as possible, and use thick and stiff lead, to reduce partial capacity, make total capacitance keep stable, in order to power work.The ozonator cell space selects space with every dress 1KW at 0.5m
3More than, indoorly should adorn the electric fan (36) of 1 above power more than 60W, be used to stir air.Ozone send pipe (37), the source of the gas of ozonator cell can be with normal air or pure oxygen, the air of use should enter aircooling cabinet (38), the temperature of cooling room and is established water shoot below dew point.When atmospheric moisture is higher, should use air drying chamber (39), the inlet mouth of kiln is provided with air filtration unit (40), when using pure oxygen, small-sized water treatment available oxygen gas cylinder supply, large scale system oxygenerator (41) air feed, ozone concn was measured through ozone concn tester (43) before sending into oxidizing chamber (42), test and Selection between 0.05～0.5ppm according to circumstances during sewage disposal, the voltage of air demand and control power supply (46) is regulated in ozone concn determinator (3) control through umformer (44) controlling flow metered valve (45), frequency is to regulate the working order of ozone-generating device.The power supply of ozonizer is 3100V, the AC power of 12～30KHz, and be combined into 2KW separate unit cover as: the ozone-generating device of use and per hour produce ozone amount and be: with normal air is about 116 grams, and the usefulness pure oxygen is about 0.6Kg.It is power supply (46) work of main power device that electric main via controller (48) is supplied with respectively with IGBT, and ozonize gas enters jet gas explosion device (32) through under meter (49) control.The negative pressure that jet gas explosion device is produced is brought ozone gas in the water into, and the manipulated variable of gas and water volume ratio are 1: 3～5.
Ozone oxidation chamber (42) is chamber, an airtight pond, the degree of depth in pond can be selected between 1.2～2 meters, establish in the pond, ozone oxidation chamber and patrol into dividing plate (50), water is advanced along the direction of arrow indication in the pond, run to from the gas explosion mouth and to change pond mouth A total time about 25～30 minutes, the A place is for changing Chi Kou, should be located at following 1 meter or deeper and more of the water surface, and mouth of a river water flow velocity should be with to patrol in the water channel water flow velocity close.The ozone oxidation chamber internal pressure is controlled between 0.01～0.015MPa when normal operation.Be not less than 1 meter under on the interior space water surface, the bottom surface, pond should progressively tilt to the A place and establish gas explosion arm (51) in order to take away sediment (obliquity gets final product at every meter 1～2.5cm) with current by the bottom, pond, spile below the pipe, the aperture is below 1mm, the total area in hole should be greater than 1～3 times in house steward (52) cross section, hole, arm is arranged on each and patrols the inlet channel bottom, and per pass is established more than 1 pipe.Arm can be controlled every pipe tolerance and all evenly give vent to anger to reach each pipe at the outdoor valve of establishing.Each patrols inlet channel water surface middle part and leaves glass port so that watch the gas explosion situation.Exit wound of bullet at jet gas explosion device (32) is equipped with a water turbine (53), it is selected that this machine is neglected the ejaculation water yield greatly, its axle extends to more than the water surface, and connect a rotary air pump (54), the atmospheric pressure that goes out of air pump is not less than 0.02MPa, tolerance can be 1～5 times that per hour handles the water yield, the purpose of using this device is that the bubble that water turbine can broken some amount makes it more tiny, also useable electric moter drives air pump (54), suitable blade is adorned in the axle output of water wheels this moment (53), in order to stir water outlet, play the gas-vapor mix effect, the inlet mouth of air pump (55) is located at oxidation pond upper space appropriate location, it will not act on the ozone of water and the unnecessary oxygen that fuse jar (17) repeatedly carries out the gas explosion mixing again through gas explosion jar (51), give full play to ozone and oxygen effect.The top of oxidizing chamber is equipped with can ozoniferous UV-lamp (56) some, and fluorescent tube quantity can be adorned the fluorescent tube of 0.5～1.5 40W at every square metre of area, and the effect of UV-lamp is photoxidation, activated ozone, generation ozone, sterilization and disinfection etc.Each of oxidizing chamber patrolled water channel and established water and chew (51) one, in order to detect water quality.Lowest part is provided with water drain valve (58) at the bottom of the pond, puts clean maintenance and uses.Highest point is adorned a water inlet pipe and valve (59) at the bottom of the pond, and this water is used to clean oxidation pond from backwashing pump (60), and ultrasonic transducer (77) is set in the water of ozonize pond, in order to destroy the chemical molecular structure.
Electricity air flotation pool (61) basic size is identical with the pond of oxidizing chamber, can be airtight, it patrol that access partition wall (62) is suitable for reading should to be lower than the water surface 10～15mm.The working direction of current is continuities of oxidation pond, tilts to afterbody B place at the bottom of the pond, establishes blow-off pipe and valve (63) at the bottom of the pond.The top left and right sides wall in pond (61) is established and is scraped the web wheel road, establish scraping plate mechanism (65) above, the scraper plate machine moves right when the suspended substance of the water surface reaches certain quantity, scrape off suspended substance on the water surface to Ji Wuchi (65), different heights at the collection left and right sides, dirty pond wall is provided with gap bridge pipe valve (68), make electric air flotation pool in down～in～water purification of middle and upper part flows into water collecting basin (69) through it.The power supply of electricity air flotation pool can be with 8～16V direct current or high-voltage pulse current.Battery lead plate when using direct current (73), (74) are positive/negative plate, be immersed in the water, it is 50～150mm that pole plate is placed distance, current density is controlled at every square metre of 5～20A, the time of current through between pole plate, when using high-voltage pulse to make power supply, (70) were pulse boosters at 20～30 minutes, (71) be power and high-frequency element, (72) are time controllers.Voltage is selected about 250～30V when using high-voltage pulse, pulse width is regulated in 8～25% (dutycycles), it can be also density pulse of equi-spaced pulses, waveform is advisable with square wave, pole plate distance strengthens than with dc low-voltage the time, much smaller when current density ratio is used direct current, the control total power is about 0.1～0.4KW for every square metre.Plate material, when doing electric floating electrolysis, pole plate is difficult for the material of oxidation with aluminium sheet, iron plate, zine plate or other, the selection of current density should look electric suspended substance that floating process produces and sediment what suitably regulate.Effects such as electric floating process can produce flocculating settling, air supporting, discolors, deodorizing experimental results show that to enter in the water collecting basin water as clear as crystal, colourless, tasteless.Appropriate location dress low frequency wave transverter in electric air flotation pool per pass is inspected the road, power supply (75) can produce the working current (high frequency is used in oxidation pond) about 25～50Hz and 25K～30KHz, voltage 3～9V is adjustable, states such as controller (76) controllable power operation range time.The effect of using this kind device is concussion, destroys some structures of matter.Strengthen sedimentation air flotation effect etc.
Transition band (78) adds stone chippings, the thin piece of hard coal, charcoal, fine sand from left to right successively and is separated by with screen cloth, filtrate is not run off and mixes mutually.Water is slow as far as possible through the flow velocity of strainer, generally is controlled at current total time from going into to the source, can be 1～3 hour.The stilling basin (79) that transition band is continuous one 1～3 meter is to make to catchment also some filtrate of sedimentation.(80) be water purifying tank, the water purification of handling leaves in this pond, establish some of jet gas explosion devices (81) in the pond, total aquifer yield is to circulate the pond water capacity 1～3 time and more times every day, boosting to 0.25～0.4MPa source of the gas with pump (82) is ozonation chamber residual gas and ozone-air, introduces through tracheae (83).Make secondary oxidative treatments, account for volume of water 20～50% with gas.Water pump (82) is a working shaft, and treated water is sent into drinking-water system or made to produce reuse water, and water drain valve (85) is done clear pond and used.The effect of valve (86): put the water of clean (79), valve (87) is let slip filter tank water, and pond (88) are that dirt is deposited the pond, and the mud of pond (3), pond (61), pond (66) etc. is sent into pond (88) through pump (64), handles with ordinary methods such as biological degradations again, regularly removes.
Claims (5)
1, a kind of method of ozone oxidation water treatment, its step is as follows:
(1) water filtration is removed the middle suspended substance that anhydrates, silt particle and than mcroorganism etc.;
(2) quick-fried gas makes readily oxidizable substance oxidation in the water under 0.6～1MPa pressure;
(3) in ozonation chamber water is carried out ozone oxidation, ozone concn is at 0.05～0.5ppm, and gas and water volume ratio are 1: 3～5, and oxidization time 25～30 minutes adds UV-irradiation, ultra-sonic oscillation simultaneously.
(4) oxidizing water is controlled under the situation of every square metre of 5～20A electric floating 20～30 minutes in current density.
(5) remove by filter sediment.
(6) secondary ozone Oxidation Treatment.
2, water treatment method according to claim 1 is characterized in that step (1) filters with adding filter cloth behind the wire netting.
3, water treatment method according to claim 1 is characterized in that step (2) is to carry out quick-fried gas with oxygen or air with crossing filterable water through step (1) in jet gas explosion device (16) is injected pressure water pot (17).
4, water treatment method according to claim 1 is characterized in that step (3) is according to required ozone amount device n (n=1,2,3 ...) individual ceramic sheet ozonizer or tubular ozonizer.
5, water treatment method according to claim 1 is characterized in that electric the floating in the electric air flotation pool of step (4) carry out, and establishes n (n=1,2,3 in the electric floating chamber ...) individual battery lead plate, the battery lead plate spacing distance is 50～150mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108001 CN1362379A (en) | 2001-01-01 | 2001-01-01 | Ozone oxidizing method of processing water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108001 CN1362379A (en) | 2001-01-01 | 2001-01-01 | Ozone oxidizing method of processing water |
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| Publication Number | Publication Date |
|---|---|
| CN1362379A true CN1362379A (en) | 2002-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 01108001 Pending CN1362379A (en) | 2001-01-01 | 2001-01-01 | Ozone oxidizing method of processing water |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297492C (en) * | 2004-12-27 | 2007-01-31 | 西安建筑科技大学 | Air floated water treating separators |
| CN1308247C (en) * | 2004-11-08 | 2007-04-04 | 武汉大学 | Dye waste water treating method and apparatus |
| CN102336463A (en) * | 2010-07-16 | 2012-02-01 | 福建新大陆科技集团有限公司 | Photochemical high-grade oxidation fluid treating system |
| CN102417261A (en) * | 2011-10-14 | 2012-04-18 | 大连理工大学 | Method for treating coal bed gas produced water by combining pre-oxidation aerated oxidation with capacitive deionization |
| CN103191629A (en) * | 2013-04-09 | 2013-07-10 | 苏州市东宏环保科技有限公司 | Waste gas treatment equipment for organic refuse conversion |
| CN107265796A (en) * | 2017-08-18 | 2017-10-20 | 安徽国能亿盛环保科技有限公司 | A kind of device for processing papermaking wastewater |
| CN107827295A (en) * | 2017-12-18 | 2018-03-23 | 苏州京上环保设备有限公司 | Coating wastewater processing unit |
| CN112174401A (en) * | 2020-11-09 | 2021-01-05 | 连云港海研环保科技有限公司 | Novel physicochemical treatment process method suitable for wastewater generated in one-step laver processing production |
| CN113562897A (en) * | 2020-04-29 | 2021-10-29 | 无锡蓝湾资源再生科技有限公司 | Industrial reclaimed water sterilization system |
-
2001
- 2001-01-01 CN CN 01108001 patent/CN1362379A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308247C (en) * | 2004-11-08 | 2007-04-04 | 武汉大学 | Dye waste water treating method and apparatus |
| CN1297492C (en) * | 2004-12-27 | 2007-01-31 | 西安建筑科技大学 | Air floated water treating separators |
| CN102336463A (en) * | 2010-07-16 | 2012-02-01 | 福建新大陆科技集团有限公司 | Photochemical high-grade oxidation fluid treating system |
| CN102417261A (en) * | 2011-10-14 | 2012-04-18 | 大连理工大学 | Method for treating coal bed gas produced water by combining pre-oxidation aerated oxidation with capacitive deionization |
| CN103191629A (en) * | 2013-04-09 | 2013-07-10 | 苏州市东宏环保科技有限公司 | Waste gas treatment equipment for organic refuse conversion |
| CN107265796A (en) * | 2017-08-18 | 2017-10-20 | 安徽国能亿盛环保科技有限公司 | A kind of device for processing papermaking wastewater |
| CN107827295A (en) * | 2017-12-18 | 2018-03-23 | 苏州京上环保设备有限公司 | Coating wastewater processing unit |
| CN113562897A (en) * | 2020-04-29 | 2021-10-29 | 无锡蓝湾资源再生科技有限公司 | Industrial reclaimed water sterilization system |
| CN112174401A (en) * | 2020-11-09 | 2021-01-05 | 连云港海研环保科技有限公司 | Novel physicochemical treatment process method suitable for wastewater generated in one-step laver processing production |
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