CN103896436A - Water depth treatment technology using filter material synergistically modified with ultraviolet (UV) and ozone and equipment thereof - Google Patents
Water depth treatment technology using filter material synergistically modified with ultraviolet (UV) and ozone and equipment thereof Download PDFInfo
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- CN103896436A CN103896436A CN201410159961.7A CN201410159961A CN103896436A CN 103896436 A CN103896436 A CN 103896436A CN 201410159961 A CN201410159961 A CN 201410159961A CN 103896436 A CN103896436 A CN 103896436A
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Abstract
The invention discloses a water depth treatment technology using a filter material synergistically modified with ultraviolet (UV) and ozone and equipment thereof. The water depth treatment technology is characterized by comprising the following steps: conveying sewage to equipment, and carrying out oxygenolysis after ozone optimizing treatment; carrying out adsorption treatment through a filtering section, and then generating .OH with strong oxidability under the combined action of low-concentration ozone and UV; further reducing bromate and other hazardous substances thereof, wherein the UV plays a sterilization role on water. Ozone is subjected to oxidation treatment by the equipment; filter material filtering and UV-coupled ozone oxidation processes are integrated; the ozone optimization section is arranged at the middle and the lower part of the filter section, so that the ozone fully contacts water, so as to play a good oxidation effect. Meanwhile, a by-product oxidized by ozone is easy to contact and react with the filter material, and the by-product oxidized by the ozone is removed. The adsorption treatment effect is improved by the modified filter material. By adopting the water depth treatment technology and the equipment thereof, the water treatment process is simplified, the problem of the existing ozone by-product is solved, the effluent quality of water treatment is improved, and the treatment cost is reduced.
Description
Technical field
The present invention relates to a kind of advanced water treatment technique and equipment thereof, particularly a kind of technology and equipment of giving the advanced treatment of water-ozone and UV modified synergic filtrate and removing ozone oxidation by product, belongs to public works and field of environment engineering.
Background technology
Along with the pollution of waterhead aggravation of tap water and the raising of water quality standard, obtain application more and more widely as the ozonize technique of one of Advanced Treatment of Drinking Water.Organic pollutants degree can effectively be removed or reduce to ozone, and can carry out disinfection to water.At present, in order to tackle the pollution at water source, no matter the waterworks of municipal water supply, be the new water factory building or the water factory of transformation, and its technical process adopts ozone oxidation and charcoal absorption combined depth treatment process substantially.
Although the Advanced Treatment of Drinking Water that ozone process is micro-polluted water provides effective way, some problems are also inevitably brought.First, ozone oxidation by product residue problem if contain bromide in water source, can produce bromate after ozone oxidation, and above-mentioned technique is only the absorption of gac to the removal of bromate, and clearance is low.Secondly, technical process is loaded down with trivial details.The particularly transformation to existing traditional technology, need to increase multiple structures, and in the situation that existing treatment process elevation is definite, between structures, increase processing unit and certainly will will destroy original hydraulic equilibrium, or increase lift technique and increase energy consumption, or reduce the use range of follow-up structures.
So, when how utilizing ozonation technology, remove ozone oxidation by product and simplification of flowsheet, improve water supply quality and become a problem needing solution badly.
Summary of the invention
Object of the present invention, in order to overcome the shortcoming of existing employing ozone oxidation and charcoal absorption combined depth treatment process and equipment thereof, provides advanced water treatment technique and the equipment thereof of a kind of UV and ozone cooperative modified filter material.
The present invention is by the following technical solutions: the advanced water treatment technique of a kind of UV and ozone cooperative modified filter material, be characterized in, and this treatment process is:
1) sewage is by pending water water inlet pipe access arrangement, evenly be sprayed on the filter material layer in equipment, ozonation aerated pipe layer is sent into ozone the earliest simultaneously, and sewage also decomposes through partial organic substances direct oxidation in ozone and sewage in through filtrate adsorption treatment;
2) sewage that flows to ozonation aerated pipe layer below can contact second layer filtrate again, and filtrate adsorption treatment is further removed objectionable impurities;
3) flow to through ozone oxidation and filtrate sewage after treatment the region that is provided with UV fluorescent tube layer in equipment, under the effect of UV fluorescent tube layer, ozone process produces a large amount of OH, and the OH of strong oxidizing property efficiently removes bromate and other objectionable impuritiess, and UV can carry out disinfection to the water of processing rear;
4) purify after water after treatment water rising pipe flow to next processing unit in Practical Project;
5) equipment regularly carries out back flushing, adopts backwash pump that backwashing water is entered through the back flushing of bottom
Water pipe access arrangement, filtrate supporting layer uniform water distribution rinse filtrate, after having rinsed from back flushing water outlet
Pipe is discharged.
A kind of equipment for above-mentioned treatment process, be characterized in, described equipment comprises casing, back flushing rising pipe, pending water water inlet pipe, the main filter house being made up of filter material layer and filtrate supporting layer, UV fluorescent tube layer, the ozonation aerated pipe layer being made up of ozonation aerated pipe and aeration head is set respectively in casing from top to bottom, processes rear water rising pipe and back flushing water inlet pipe.
Described water inlet pipe is 1:2 with the caliber ratio of rising pipe, back flushing water inlet pipe shares a pipeline with the rear water water rising pipe of processing, back flushing rising pipe and pending water inlet pipe share a pipeline, and the back flushing water inlet shower nozzle number needs on described back flushing water inlet pipe is wanted 6/m
3.
The described main filter house being formed by filter material layer and filtrate supporting layer; be positioned at pending water inlet pipe below; if two-layer filtrate; cumulative volume is 2/3 of casing; the first layer volume is 2 times of second layer volume; filter packing adopts granulated active carbon or the quartz sand of Nanoscale Iron, modification, and filtrate supporting layer adopts sand, pebbles, slag, the glass cullet of large particle diameter, and volume is 1/5 of filtrate cumulative volume.
The ozonation aerated pipe layer of described ozonation aerated pipe and aeration head composition is between two-layer filtrate or be arranged on the bottom of filter material layer, so that ozone fully contacts with water.
Described UV fluorescent tube layer adopt ultraviolet lamp tube that wavelength is 182～280nm one or more layers be positioned at filtrate supporting layer bottom, process after water water rising pipe water outlet front end.
Above-mentioned UV is the abbreviation of ultraviolet ray (ultraviolet).The above-mentioned technical scheme for ozone filter tank equipment is gravity streaming, and as pending water flows into from lower surface current, structure is done to adjust and be updraft technical scheme up and down.
The invention has the beneficial effects as follows:
1. technique of the present invention and equipment thereof, for the advanced treatment of micro polluted source, can be combined with existing treatment process, also can on the basis of existing sand filter, transform.
2. by ozone Oxidation Treatment process, media filtration process and UV coupling ozone oxidation process integrate, and three treating processess are carried out simultaneously and interact.Not only carry out advanced treatment, also removed simultaneously or reduced the by product that ozone oxidation produces, improved the quality of water.
3. the filtrate of modification has improved treatment effect, has reduced filtrate cost.
4. can effectively remove ozone oxidation by product through the multiple processing of this equipment, effluent quality is protected, effectively substitute the technique to quartz sand filtration+ozone oxidation+activated carbon filtration in water treatment, and effectively reduce or removed some objectionable impurities, simplify the technical process to water treatment, obtained good economic benefit of engineering.
Accompanying drawing explanation
Fig. 1 is the advanced water treatment processing unit schematic diagram of UV and ozone cooperative modified filter material.
Embodiment
Embodiment 1
As shown in Figure 1, ozone of the present invention and UV modified synergic filtrate advanced treatment device comprise casing, back flushing rising pipe 1, pending water water inlet pipe 2, the main filter house being made up of filter material layer 5 and filtrate supporting layer 4, UV fluorescent tube layer 6, the ozonation aerated pipe layer 3 being made up of ozonation aerated pipe and aeration head are set respectively in casing from top to bottom, process rear water rising pipe 7 and back flushing water inlet pipe 8.
Described water inlet pipe is 1:2 with the caliber ratio of rising pipe, back flushing water inlet pipe shares a pipeline with the rear water water rising pipe of processing, back flushing rising pipe and pending water inlet pipe share a pipeline, and the back flushing water inlet shower nozzle number needs on described back flushing water inlet pipe is wanted 6/m
3.The described main filter house being formed by filter material layer 5 and filtrate supporting layer 4; be positioned at pending water inlet pipe 2 belows; if two-layer filtrate; cumulative volume is 2/3 of casing; the first layer volume is 2 times of second layer volume; filter packing adopts granulated active carbon or the quartz sand of Nanoscale Iron, modification, and filtrate supporting layer 4 adopts sand, pebbles, slag, the glass cullet of large particle diameter, and volume is 1/5 of filtrate cumulative volume.The ozonation aerated pipe layer 3 of described ozonation aerated pipe and aeration head composition is between two-layer filtrate or be arranged on the bottom of filter material layer 5, so that ozone fully contacts with water.
In embodiment, pending water water inlet pipe 2, apart from casing top 100mm, adopts perforated pipe water distribution, supervisor's dimension D N50mm, arm dimension D N20mm, the hole of evenly opening Φ 8mm on arm every 50mm.Filter material layer 5 is positioned at pending water water inlet pipe 2 below 100mm, the first floor height 1000mm, the second floor height 500mm adopts the Nanoscale Iron that coconut husk Powdered Activated Carbon after medium power microwave modification and particle diameter are 30nm, the wherein filtrate support floor height 200mm in the second layer, and employing tap density is 1.8g/cm
3pebbles and the sand of large particle diameter.Distance 500mm between two-layer filtrate, so that ozonation aerated pipe layer 3 to be installed, ozonation aerated pipe layer 3 comprises aeration tube and aeration head, aeration head adopts 10 of rotary aeration heads, specification Φ 260 × H210 mm.Distance 300mm between UV fluorescent tube layer 6 and filtrate supporting layer 4, adopts the efficient ultraviolet lamp tube that wavelength is 182～280nm, and power density is 80w/cm, and one or more layers is positioned at the rear water water rising pipe water outlet front end of bottom, processing of filtrate supporting layer 4.
Equipment box adopts the various structures such as steel or stainless steel.
Pending water, by water-in 2 access arrangements, is evenly sprayed on the first layer filtrate of filter material layer 5, controls the filtering velocity of sewage in filtrate 5 at 4 ~ 8m/h.Open ozonation aerated pipe 3, ozone dosage can be definite according to influent quality, and sewage, carrying out ozone oxidation decomposition course through in filtrate, is tentatively removed partial organic substances.The second layer filtrate that flows into filter material layer 5 through the water of the first layer media filtration and ozone Oxidation Treatment, carries out adsorption treatment by filtrate again, further removes objectionable impurities.At the first layer filtrate, place arranges medicine feeding hole, is to guarantee processing efficiency, extends filtrate work-ing life, can add appropriate coagulating agent.Flow through the water rough purification of filtrate supporting layer 4, but because ozone oxidation process contains by product, it is the efficient ultraviolet lamp tube of 182～280nm that UV layer 6 adopts wavelength, produce a large amount of OH with ozone cooperative, the OH of strong oxidizing property efficiently removes bromate and other objectionable impuritiess, plays sterilization and disinfection effect simultaneously.Water after purifying completely enters the next unit in Practical Project through water outlet.
For ensureing the treatment effect of filtrate, extend its work-ing life, need the filtrate in routine cleaning filter tank, close pending water inlet pipe 2, process rear water rising pipe 7 valves, open back flushing water inlet pipe and water outlet pipe 1,8 valves, equipment is carried out to back flushing and process 4 ~ 7 minutes.
Application Example 1
Processing by the present invention for micro-polluted source water, former water is Water of Huangpu River.Through measuring and calculating, delivery turbidity, COD, NH
4 +-N, UV
254average removal rate be respectively 82.4%, 63.5%, 86%, 79.4%.Discovery in service, in the time that UV fluorescent tube layer 6 is not opened, the clearance of COD can reduce, and water outlet contains the bromate that exceeds standard.In the time that filter material layer 5 adopts common carbon leaching material, COD and UV
254clearance all can reduce, effluent color dilution is higher than using when modified filter material.In the optimum condition of equipment, ozone dosage is than few in technique in the past, and clearance is high.
In sum, novel ozone of the present invention filter tank is by ozone Oxidation Treatment process, and media filtration process and UV coupling ozone oxidation process integrate, and three treating processess are carried out simultaneously and interact.The filtrate of modification has improved treatment effect, has reduced filtrate cost.Ozone oxidation by product can be effectively removed in multiple processing through this equipment, effluent quality is protected, effectively substitute the technique to quartz sand filtration+ozone oxidation+activated carbon filtration in water treatment, and effectively reduce or removed some objectionable impurities, simplify the technical process to water treatment, obtained good economic benefit of engineering.
Described content is only the basic explanation of the present invention under conceiving, and according to any equivalent transformation that technical scheme of the present invention is done, all belongs to protection scope of the present invention.
Claims (6)
1. an advanced water treatment technique for UV and ozone cooperative modified filter material, is characterized in that, this treatment process
1) sewage is by pending water water inlet pipe (2) access arrangement, evenly be sprayed on the filter material layer (5) in equipment, ozonation aerated pipe layer (3) is sent into ozone the earliest simultaneously, and sewage also decomposes through partial organic substances direct oxidation in ozone and sewage in through filtrate adsorption treatment;
2) sewage that flows to ozonation aerated pipe layer (3) below can contact the second layer filtrate in filter material layer (5) again, and filtrate adsorption treatment is further removed objectionable impurities;
3) flow to through ozone oxidation and filtrate sewage after treatment the region that is provided with UV fluorescent tube layer (6) in equipment, under UV fluorescent tube layer (6) effect, ozone process produces a large amount of OH, the OH of strong oxidizing property efficiently removes bromate and other objectionable impuritiess, and UV can carry out disinfection to the water of processing rear;
4) purify after water after treatment water rising pipe (7) flow to next processing unit in Practical Project;
5) equipment regularly carries out back flushing, adopts backwash pump that backwashing water is entered through the back flushing of bottom
Water pipe (8) access arrangement, filtrate supporting layer (4) uniform water distribution rinse filtrate, after having rinsed from
Back flushing rising pipe (1) is discharged.
2. the advanced water treatment processing unit for UV as claimed in claim 1 and ozone cooperative modified filter material, it is characterized in that, described equipment comprises casing, in casing, arrange respectively from top to bottom back flushing rising pipe (1), pending water water inlet pipe (2), mainly formed by filter material layer (5) and filtrate supporting layer (4) filter house, UV fluorescent tube layer (6), the ozonation aerated pipe layer (3) form by ozonation aerated pipe and aeration head, process water rising pipe (7) and back flushing water inlet pipe (8) afterwards.
3. the advanced water treatment processing unit of UV according to claim 2 and ozone cooperative modified filter material, it is characterized in that, described water inlet pipe is 1:2 with the caliber ratio of rising pipe, back flushing water inlet pipe shares a pipeline with the rear water water rising pipe of processing, back flushing rising pipe and pending water inlet pipe share a pipeline, and the back flushing water inlet shower nozzle number needs on described back flushing water inlet pipe is wanted 6/m
3.
4. the advanced water treatment processing unit of UV according to claim 2 and ozone cooperative modified filter material; it is characterized in that; the described filter house mainly being formed by filter material layer (5) and filtrate supporting layer (4); be positioned at pending water inlet pipe (2) below; if two-layer filtrate; cumulative volume is 2/3 of casing; the first layer volume is 2 times of second layer volume; filter packing adopts granulated active carbon or the quartz sand of Nanoscale Iron, modification; filtrate support (4) adopts sand, pebbles, slag, the glass cullet of large particle diameter, and volume is 1/5 of filtrate cumulative volume.
5. the advanced water treatment processing unit of UV according to claim 2 and ozone cooperative modified filter material, it is characterized in that, the ozonation aerated pipe layer (3) of described ozonation aerated pipe and aeration head composition is between two-layer filtrate or be arranged on the bottom of filter material layer (5), so that ozone fully contacts with water.
6. the advanced water treatment processing unit of UV according to claim 2 and ozone cooperative modified filter material, it is characterized in that, described UV fluorescent tube layer (6) adopts ultraviolet lamp tube that wavelength is 182～280nm, and one or more layers is positioned at bottom, rising pipe (7) the water outlet front end of filter house supporting layer (4).
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| CN201410159961.7A CN103896436A (en) | 2014-04-22 | 2014-04-22 | Water depth treatment technology using filter material synergistically modified with ultraviolet (UV) and ozone and equipment thereof |
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| CN104129877A (en) * | 2014-07-25 | 2014-11-05 | 中国环境科学研究院 | Apparatus for removing organic matters in underground water and method for removing organic matters |
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| CN108862779A (en) * | 2018-07-24 | 2018-11-23 | 苏州水木康桥环境工程技术有限公司 | A kind of active carbon purification of waste water and regenerating unit and its purification and regeneration method |
| CN109626759A (en) * | 2019-01-30 | 2019-04-16 | 河海大学 | A kind of circulating the ecology pond systems of full section and method handling agriculture stain disease |
| CN110885152A (en) * | 2018-09-07 | 2020-03-17 | 江苏三强环境工程有限公司 | Novel double-tower ozone disinfection tower |
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| CN109626759A (en) * | 2019-01-30 | 2019-04-16 | 河海大学 | A kind of circulating the ecology pond systems of full section and method handling agriculture stain disease |
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Application publication date: 20140702 |