CN104817218A - Ozone pre-oxidation water treatment method - Google Patents
Ozone pre-oxidation water treatment method Download PDFInfo
- Publication number
- CN104817218A CN104817218A CN201510183936.7A CN201510183936A CN104817218A CN 104817218 A CN104817218 A CN 104817218A CN 201510183936 A CN201510183936 A CN 201510183936A CN 104817218 A CN104817218 A CN 104817218A
- Authority
- CN
- China
- Prior art keywords
- water
- ozone
- ecu
- adjustable stirrer
- rotating speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Disclosed is an ozone pre-oxidation water treatment method. The water inlet quantity of a first water inlet (6) and the amount of ozone outputted by an ozone diffuser (9) are controlled by an electric control unit (10), so that water within a range with ozone concentration of 0.8-0.9 milligram per liter and the ozone within the range are oxidized for 5 minutes, the electric control unit (10) controls stirring of a first adjustable stirrer (19) and the vibration strength of an ultrasonic vibration array (20) to perform one-minute continuous stirring and vibration according to the water inlet quantity of a second water inlet (16), a second adjustable stirrer (22), a third adjustable stirrer (23) and a fourth adjustable stirrer (24) perform stirring for 15 minutes, reactants are conveyed to a precipitating portion (4) and precipitated for 35 minutes, and the water entering a filtering portion (5) passes a filtering layer (34) and then is drained from a fifth water outlet (33).
Description
Technical field
The present invention relates to water-treatment technology field, particularly relate to the technical field of micro-polluted drinking water water source purifying, particularly relate to a kind of ozone pre-oxidation water treatment method.
Background technology
In recent years, because entering of water is herded in a large amount of sanitary sewage, trade effluent, agriculture fishing, make the pollution that most of water body suffers in various degree, Urban water supply is caused and has a strong impact on.Due to the discharge of industrial sewage, the widespread use of the increase of agrochemical usage quantity particularly fishery feed causes a large amount of losses of nitrogen and phosphorus thing.The degree of lake eutrophication is on the rise, and has become outstanding problem of environmental pollution.Lake surface around the intake of city tap-water is surrounded by a large amount of algae, is directly degrading the water quality of the tap water that people depend on for existence.According to investigations, China has the drinking water source of more than 90% to be polluted in 430 cities, cause the eutrophication of water body, and the most obvious feature of eutrophication is exactly the excessive multiplication of algae, brings very large impact to water supply project.
Water treatment of the prior art has physical method and the large class of chemical process two, wherein such as filter, the physical method such as separation cannot carry out purifying treatment to the dissolved organic matter etc. in water, chemical process such as water source adopts chlorine to carry out disinfection usually, but the pollution at water source can produce chloroform, bromodichloromethane, tetracol phenixin etc. after using chlorine disinfectant carinogenicity chlorinated organics (THM), namely can bring secondary pollution.
In addition, the material in water, except deliquescent organism, also has multiple particulate matter, as algae, diatomite, organic granular etc., is the primary structure body forming fine colloid and turbidity.Sand filtration is the committed step removing particulate matter in drinking water treatment process, is especially the treating processes at water source with surface water, but often there will be the phenomenon of filter tank blocking in clean water treatment factory.A lot of research finds that algae is the arch-criminal of filter tank blocking, and even have some large-scale algaes can cause the shortening greatly of the filter tank cycle of operation, the operation of water supply plant brings stern challenge.Although other large-scale algae also can affect filtration procedure, but diatom is the main algae kind causing filter tank to block, such as, thread diatom causes the filter tank cycle of operation to foreshorten to 8 hours from 30 hours, and shank algae (Synedra) causes the filter tank cycle of operation to foreshorten to 3.5 hours from 35 hours.
In prior art, sterilization algae removal also suppresses the technology of algal bloom to mainly contain: 1) filter screen drags for collection, 2) ultrasonic technique, 3) high pressure algae removal, 4) biological treating, 5) ecological management and 6) oxidation algae removal etc.Wherein, first-elected chemical oxidization method, and very many for the chemical oxidizing agent of sterilizing and algae-removing, as liquid chlorine, ozone, dioxide peroxide, clorox etc.Although liquid chlorine can make frustule dead, but corpse and the Algae toxins of frustule can not be decomposed, produce disinfection byproduct (DBP) haloform, halohydrocarbon etc. and material is caused to three of human body and bad environmental, and have chlorine smell and bad smell, although therefore low price, also should use cautiously.Ozonization speed is fast, does not have the effect suppressing algal bloom, and after algae removal for some time, frustule wherein starts again growth.Dioxide peroxide is deposited on the bottom and is decomposed by the microorganisms the dissolved oxygen in consumption water and causes the problem that water body goes bad after being difficult to solve a large amount of algae death.The sterilizing and algae-removing effect of clorox is lower than dioxide peroxide, and its ability of killing livestock obviously declines with the rising of pH value, therefore, is not at home and abroad all widely used at present.Such as supersonic algae removing technology, ozone and potassium permanganate coupling algae removal technology, two formulas are except algae sterilization sterilizer etc.Physical is wasted time and energy, and efficiency is very low; Although chemical method instant effect, as controlled bad dosage, easily cause secondary pollution; Standard biologic method construction investment is large, operation is more difficult, except algae efficiency is low, be not suitable for the improvement of large-scale waters.A small amount of or micro-does not reach the domestic water of national regulation and the standard of tap water containing algae tap water.
Therefore, in this area, need a kind of particle can not only removed in water, comprise the water treating equipment of the impurity such as the organism of algae, make water quality reach drinking water standard, and can not cause the water treating equipment cycle of operation shorten, water treatment can be carried out quickly and efficiently.
Compared with prior art, the present invention has following beneficial effect for water treating equipment provided by the invention and method thereof:
1) the present invention adopts ozone pre-oxidation reactive moieties, mixing portion, cohesion part, sediment fraction and filtration fraction combined purifying except algae, avoid the secondary pollution problems that chemical process of the prior art produces, the problem such as the treatment time avoiding physical method is long, decontamination effect improving is bad, it also avoid the shortcoming that single use ozone suppresses timeliness short, effective suppression algae regeneration, prevention wawter bloom.
2) the present invention is regulated ozone amount by ECU, controlled oxidization effect, and ozone oxidation and cohesion, filteration produce multiplication effect, ultrasonic vibration and stirrer stir combination and facilitate cohesion and crushing effect, and the filtering layer of multiple layers of different materials carries out the decontamination effect improving that technique means considerably improves water treatment of the present invention such as filtering from multiple dimension.
3) the present invention can complete the water treatment of the pending former water of one batch within the short period of time being less than 1 hour, and method of the present invention can not cause due to the reasons such as algae cause cannot long-term operation, therefore, method of the present invention can be carried out purifying water effect to long period efficiently and be processed significantly, saves running cost.
Summary of the invention
The invention provides a kind of ozone pre-oxidation water treatment method, it comprises the following steps.
In a first step, with in the ozone pre-oxidation reactive moieties of the first water-in and the first water outlet, it comprises ozonizer, ozone diffuser and ECU, the first water outlet is sent to by the fluid channel being provided with ozone diffuser from the pending former water of the first water-in input, the ozone delivery ozonizer that is located at bottom ozone pre-oxidation reactive moieties produced with the airway of air inlet electromagnetic valve is to the ozone diffuser with titanium plate micropore, ECU controls the flooding quantity of the first water-in and the ozone amount of ozone diffuser output, ozone concn is made to be in the water in the scope of 0.8 to 0.9 milligrams per liter and ozone oxidation reaction wherein 5 minutes.
In the second step, in the mixing portion with the second water-in and the second water outlet, it comprises the polymeric aluminum chlorides solution input aperture of establishing at an upper portion thereof, the the first adjustable stirrer hung down from the top of mixing portion and the ultrasonic vibration array being located at its underpart, mixing portion is inputted through the second water-in and polymeric aluminum chlorides solution through polymeric aluminum chlorides solution input aperture from the water after the oxidation of the first water outlet, ECU controls according to the flooding quantity being input to the second water-in stirring and the vibration that the first adjustable stirrer stirs and the vibration intensity of ultrasonic vibration array is held mixing portion water and polymeric aluminum chlorides solution carry out lasting 1 minute.
In third step, comprise the 3rd water-in be positioned at bottom it, from hang down in its top second, third and fourth adjustable stirrer and from it portion export in the cohesion part of the 3rd water outlet of water, water from the second water outlet passes through second through the 3rd water-in input cohesion part, third and fourth adjustable stirrer stirs 15 minutes, ECU controls second of cohesion part according to the flooding quantity being input to the 3rd water-in, 3rd, with the rotating speed of the 4th adjustable stirrer, wherein, the rotating speed of the first adjustable stirrer is greater than the rotating speed of the second adjustable stirrer, the rotating speed of the second adjustable stirrer is greater than the rotating speed of the 3rd adjustable stirrer, the rotating speed of the 3rd adjustable stirrer is greater than the rotating speed of the 4th adjustable stirrer.
In the 4th step, comprise in the sediment fraction of the 4th water-in of the side in the portion of being located thereon and the 4th water outlet of opposite side, the water through cohesion part is sent to through the 4th water-in the precipitating action that sediment fraction carries out 35 minutes from the 3rd water outlet.
In the 5th step, comprise the 5th water-in that is located at top and be located in the filtration fraction of the 5th water outlet of bottom, the water entering filtration fraction is discharged from the 5th water outlet after being the filtering layer of the quartz sand layer of 0.7 meter and micron-sized reverse osmosis rete in 0.9-1.4 mm of thickness by the active carbon layer, the particle diameter that are followed successively by coarse sands layer that particle diameter is the thickness 0.2 meter of 4-8 millimeter from top to bottom, particle diameter is 0.4 meter at the thickness of 0.8-1.5 millimeter.
Ozone pre-oxidation water treating equipment of the present invention significantly can improve characteristic index DOC, the COD as evaluating organic pollutant removal effect by the treatment scheme of water being carried out to the combinations such as ozonize, stirring and ultrasonic vibration, coagulative precipitation and filtration
mn, UV
254etc. index, improve the decontamination effect improvings such as the organism to water, particle.Wherein, DOC is dissolved organic carbon total amount in water body, COD
mnbe various under given conditions can by the organic summation of potassium permanganate oxidation, and UV
254what represent is as humic acids has unsaturated link(age), has the organism of characteristic absorbance at 254nm place.These three indexs are the most frequently used indexs in order to characterize Organic Pollutants In Water content.The granule content of turbidity and different-grain diameter characterizes the index of particle residue in water body.The present invention can significantly improve the effect of water body particle removal.
Ozone pre-oxidation part, the first, the ozone oxidation UV of proper concn
254filter after type organic and remove; The second, for COD
mntype organic, the ozone of proper concn makes it aggregate into superpolymer, and improve the coagulation effect at mixing portion and cohesion part, ozone has good Coagulation aiding; 3rd, the ozone oxidation of proper concn makes the pH value of water there occurs change, thus improves coagulation efficiency, improves sedimentation effect; 4th, suitable ozone concn can make to form microbial film in filtration procedure, microbial film extends the sand filtration cycle of operation and improves the clearance to particulate matter and turbidity, in addition, microbial film is removed organic decomposition also may play certain effect, thus raising filter effect, the turbidity of the water of process of the present invention is well below the turbidity of the water of prior art process, and that is the operating load of equipment of the present invention is significantly improved; 5th, for DOC organism such as diatoms, because diatom was difficult to remove in the mixed heavy stage, directly cause a large amount of diatoms to enter in filtration fraction.The diatom that particle diameter is larger cannot be filtered in the hole of filtration fraction filler, just by filter clogging on top layer, plug the filtration of filtration fraction very soon.Frustule is broken to small particle by ozone pre-oxidation part of the present invention, after making to enter filtration process section, the particulate matter that particle diameter is less can be shifted to lower floor at leisure by the hole of filtration fraction, thus effective filter thickness of filtration fraction is increased, thus improve the filter effect of filtration fraction.Therefore, there is the cross action of number of mechanisms to mixing portion, cohesion part, sediment fraction and filtration fraction thus promote organic purification in ozone oxidation.
At mixing portion, the organism in water, particle etc. can be pulverized further by controlled rapid stirring and ultra-sonic oscillation, and contribute to the abundant mixing of the water after ozone oxidation and cohesion solution, contribute to next step cohesion.The combination of ultra-sonic oscillation and rapid stirring can improve the effect of larger-size organism, particle in centering significantly, improves next step cohesion and precipitating action further.
In cohesion part, stir water and cohesion solution by the stirrer of different rotating speeds, can cohesion be improved, be conducive to improving decontamination effect improving.By above-mentioned effect, the impurity overwhelming majority of the present invention to water treatment is deposited in sediment fraction, greatly reduces turbidity.
At filtration fraction, combined with ozone oxygenizement, stirring action and ultra-sonic oscillation, the impurity such as the organism in water, particle are filtered by the sandstone of multilayer, after activated carbon filtration and reverse osmosis membrane filtration, original sub-block becomes qualified tap water.
Preferably, when ozone amount data are lower than ozone amount set(ting)value, ECU increases ozone amount by Controlling solenoid valve; When ozone amount data are greater than ozone amount set(ting)value, ECU reduces ozone amount by Controlling solenoid valve.
Preferably, reverse osmosis rete is aromatic polyamide film.
Preferably, the ORP numerical value detected is delivered in ECU by ORP sensor; The ORP numerical value recorded and setting range compare by ECU, when the ORP numerical value recorded is less than the minimum value of setting range, the entering water electromagnetic valve of supply or control the first water-in that ECU controls ozonizer increase ozone reduces the flooding quantity of the first water-in, numerically rises in setting range to make ORP; When the ORP numerical value recorded is greater than the maximum value of setting range, the entering water electromagnetic valve of supply or control the first water-in that ECU controls ozonizer minimizing ozone increases the flooding quantity of the first water-in, is down in setting range to make ORP numerical value.
Preferably, ozone pre-oxidation reactive moieties is that the wall thickness that stainless steel is made is 3 millimeters, diameter is 0.13 meter and is highly the right cylinder of 2 meters.
Preferably, mixing portion is that the wall thickness that stainless steel is made is 3 millimeters, diameter is 0.11 meter and is highly the right cylinder of 0.4 meter.
Preferably, swash plate angle of inclination is 45 degree to 60 degree.
Preferably, titanium plate micropore is that multiple micron-sized through hole is evenly distributed on the curved slab that titanium metal panel makes.
Preferably, the rotating speed of the first stirrer is 300 turns of per minutes, the rotating speed of the second stirrer is 200 turns of per minutes, the rotating speed of the 3rd stirrer is 150 turns of per minutes, the rotating speed of the 4th stirrer is 100 turns of per minutes.Above-mentioned setting can guarantee that water is thoroughly mixed, fragmentation, is conducive to optimizing oxidation, cohesion, fragmentation, precipitating and filter effect.
Preferably, one or several in the replaceable one-tenth Tai-Ace S 150 of polymeric aluminum chlorides solution, polyaluminium sulfate, liquor alumini chloridi.
According to method of the present invention, significantly UV can be reduced
254, COD
mn, DOC, turbidity and different-grain diameter the index such as numbers of particles, compared to the prior art, decontamination effect improving can be significantly improved and the water treatment of a batch can be completed in 1 hour, run efficient and save running cost.
Preferably, ECU is programmable control unit.
Preferably, ECU controls the pre-determined range of ozone concn is 0.85 milligrams per liter.
Preferably, ultrasonic vibration array is piezo-electric type ultrasonic transducer or magnetostriction type ultrasonic transducer.
Accompanying drawing explanation
Fig. 1 is the structural representation according to ozone pre-oxidation water treatment method of the present invention;
Fig. 2 is the structural representation of the ozone pre-oxidation reactive moieties according to ozone pre-oxidation water treatment method of the present invention;
Fig. 3 is the structural representation of the filtration fraction according to ozone pre-oxidation water treatment method of the present invention;
Fig. 4 is the UV carrying out long period water treatment according to method of the present invention and prior art respectively
254change schematic diagram;
Fig. 5 is the COD carrying out long period water treatment according to method of the present invention and prior art respectively
mncontent schematic diagram;
Fig. 6 is the DOC content schematic diagram carrying out long period water treatment according to method of the present invention and prior art respectively;
Fig. 7 is the turbidity change schematic diagram respectively water being carried out to long period water treatment according to method of the present invention and prior art;
Fig. 8 is the UV carrying out the water treatment of different ozone concn according to water treatment method of the present invention and prior art respectively
254change schematic diagram;
Fig. 9 is the COD respectively water being carried out to different ozone concn water treatment according to water treatment method of the present invention and prior art
mnchange schematic diagram;
Figure 10 adopts water treatment method of the present invention and prior art to change schematic diagram to the DOC that water carries out different ozone concn water treatment respectively;
Figure 11 (a) is the granule content change schematic diagram being less than 2 micron grain sizes carrying out water treatment according to method of the present invention and prior art respectively;
Figure 11 (b) is the 2 microns of change of the granule content to the 5 micron grain sizes schematic diagram carrying out water treatment according to method of the present invention and prior art respectively;
Figure 11 (c) is the 5 microns of change of the granule content to the 15 micron grain sizes schematic diagram carrying out water treatment according to method of the present invention and prior art respectively;
Figure 11 (d) is the granule content change schematic diagram being greater than 15 micron grain sizes carrying out water treatment according to method of the present invention and prior art respectively.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment also with reference to accompanying drawing, the present invention is described in more detail.Should be appreciated that, these describe just exemplary, and do not really want to limit the scope of the invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
According to one embodiment of present invention, the structural representation according to ozone pre-oxidation water treatment method of the present invention as shown in Figure 1.In a first step, see the structural representation of the ozone pre-oxidation reactive moieties according to ozone pre-oxidation water treatment method of the present invention as shown in Figure 2.With in the ozone pre-oxidation reactive moieties 1 of the first water-in 6 and the first water outlet 7, it comprises ozonizer 8, ozone diffuser 9 and ECU 10, the pending former water inputted from the first water-in 6 is sent to the first water outlet 7 by the fluid channel 11 being provided with ozone diffuser 9, the ozone delivery produced by the ozonizer 8 be located at bottom ozone pre-oxidation reactive moieties 1 with the airway 13 of air inlet electromagnetic valve 12 is to the ozone diffuser 9 with titanium plate micropore 39, ECU 10 controls the flooding quantity of the first water-in 6 and the ozone amount of ozone diffuser 9 output, ozone concn is made to be in the water in the scope of 0.8 to 0.9 milligrams per liter and ozone oxidation reaction wherein 5 minutes, the ORP sensor 15 being located at the first water outlet 7 detects the water after the oxidation of the first water outlet 7 and ORP data is sent ECU 10.Preferably, titanium plate micropore 39 can spray ozone at regular time and quantity.
Ozone diffuser 9 with the embedded gas meter 14 that can set charge flow rate is oxidized the pending former water from the first water-in 6 in fluid channel 11.Gas flow data is sent to ECU 10 by gas meter 14.ORP (Oxidation-ReductionPotential, the redox potential) sensor 15 being located at the first water outlet 7 detects the water after the oxidation of the first water outlet 7 and ORP data is sent ECU 10.ORP sensor 15 is for detecting the redox potential of the aquaculture water through oxide treatment.
In the second step, as shown in Figure 1, in the mixing portion 2 with the second water-in 16 and the second water outlet 17, it comprises the polymeric aluminum chlorides solution input aperture 18 of establishing at an upper portion thereof, hang down from the top of mixing portion 2 first adjustable stirrer 19 and the ultrasonic vibration array 20 being located at its underpart, mixing portion 2 is inputted through the second water-in 16 and polymeric aluminum chlorides solution through polymeric aluminum chlorides solution input aperture 18 from the water after the oxidation of the first water outlet 7, ECU 10 controls according to the flooding quantity being input to the second water-in 16 stirring and the vibration that first adjustable stirrer 19 stirs and the vibration intensity of ultrasonic vibration array 20 is held mixing portion 2 water and polymeric aluminum chlorides solution carry out lasting 1 minute.Superpose ultrasonic vibration array 20 vibrational energy while stirring by the first adjustable stirrer 19 fully mix further and by larger-size for part organism as fragmentations such as diatoms, reduce its size.
In third step, comprise the 3rd water-in 21 be positioned at bottom it, from hang down in its top second, third and fourth adjustable stirrer 22, 23, 24 and from it portion export water the 3rd water outlet 39 cohesion part 3 in, water from the second water outlet 17 inputs cohesion part 3 by second through the 3rd water-in 21, third and fourth adjustable stirrer 22, 23, 24 stir 15 minutes, ECU 10 controls second of cohesion part 3 according to the flooding quantity being input to the 3rd water-in 21, 3rd, with the 4th adjustable stirrer 22, 23, the rotating speed of 24, wherein, the rotating speed of the first adjustable stirrer 19 is greater than the rotating speed of the second adjustable stirrer 22, the rotating speed of the second adjustable stirrer 22 is greater than the rotating speed of the 3rd adjustable stirrer 23, the rotating speed of the 3rd adjustable stirrer 23 is greater than the rotating speed of the 4th adjustable stirrer 24.
First, second dividing plate 25,26 is provided with between second and third adjustable stirrer 22,23 and between third and fourth adjustable stirrer 23,24, the corresponding stirring scope of the second adjustable stirrer 22 and the 3rd adjustable stirrer 23 is carried out interval by dividing plate 25, the impurity such as such as organism, particle etc. be conducive in water stirs further and condenses, similarly, the corresponding stirring scope of the 3rd adjustable stirrer 23 and the 4th adjustable stirrer 24 is carried out interval by dividing plate 26, and the impurity such as such as organism, particle etc. be conducive in water stirs further and condenses.
In the 4th step, comprise in the sediment fraction 4 of the 4th water-in 27 of the side in the portion of being located thereon and the 4th water outlet 28 of opposite side, be sent to through the 4th water-in 27 precipitating action that sediment fraction 4 carries out 35 minutes from the 3rd water outlet 39 through the water condensing part 3.Two pieces are located at swash plate 29 hypercentre inclined position bottom sediment fraction 4 and at spaced 10 millimeters of places to downward-extension, the downward extension portion of swash plate 29 is sealed by removable seal 30 and forms holding tank 31.The impurity of precipitation falls into holding tank 31 along swash plate under gravity, is conducive to the sedimentation effect of sediment fraction, wherein, after holding tank 31 is full of, empties and seal again precipitate again for sediment fraction by removable seal 30.
In the 5th step, the structural representation of the filtration fraction according to ozone pre-oxidation water treating equipment of the present invention as shown in Figure 3, comprise the 5th water-in 32 that is located at top and be located in the filtration fraction 5 of the 5th water outlet 33 of bottom, enter the water of filtration fraction 5 by being followed successively by the coarse sands layer 35 that particle diameter is the thickness 0.2 meter of 4-8 millimeter from top to bottom, particle diameter is the active carbon layer 36 of 0.4 meter at the thickness of 0.8-1.5 millimeter, particle diameter is discharged from the 5th water outlet 33 after 0.9-1.4 mm of thickness is the filtering layer 34 of the quartz sand layer 37 of 0.7 meter and micron-sized reverse osmosis rete 38.The material of filtering layer stacks gradually from top to bottom by particle diameter is descending, and according to the difference of material, its thickness has carried out effectively arranging adaptively, can filter micron order impurity, further increases the purifying water effect of this equipment.
ECU 10 can according to gas flow data, ORP Data Control air inlet electromagnetic valve 12, the adjustable rotating speed of stirrer 19,22,23,24 of the adjustable first, second, third and fourth of ECU 10 and the vibration intensity of ultrasonic vibration array 20.ECU can adjust flooding quantity and the treatment time of the various piece of equipment of the present invention according to the optimization setting value stored or setting range, more preferably, ECU of the present invention is programmable ECU.
According to water treatment method provided by the invention, regulated by adjustment ECU 10 pairs of ozone amounts, controlled oxidization effect, and ozone oxidation and cohesion, filteration produce multiplication effect, ultrasonic vibration and stirrer stir combination and facilitate cohesion and crushing effect, the filtering layer of multiple layers of different materials carries out the decontamination effect improving that technique means considerably improves water treatment of the present invention such as filtering from multiple dimension, and the present invention passes through UV
254, COD
mn, DOC, the water treatment of index to water treatment of the present invention and prior art such as turbidity contrast.
DOC is dissolved organic carbon total amount in water body, COD
mnbe various under given conditions can by the organic summation of potassium permanganate oxidation, and UV
254what represent is as humic acids has unsaturated link(age), has the organism of characteristic absorbance at 254nm place.These three indexs are the most frequently used indexs in order to characterize Organic Pollutants In Water content.There is certain dependency between three, the meaning simultaneously representated by three indexs and analytical procedure thereof there are differences, and three indexs combine can reflect organic removal situation more all sidedly.Therefore, DOC, COD
mnand UV
254by the characteristic index as evaluation organic pollutant removal effect, and turbidity is the index evaluating granule content in water body.
The method of the present invention of employing as shown in Figure 4 and prior art carry out the UV of long period water treatment respectively
254change schematic diagram, wherein X-coordinate is treatment time of water, and unit is number of days, and ordinate zou is UV
254value, unit is cm-1, and square line represents the UV of pending former water
254value change curve, triangle line represents the UV of the water after prior art process
254value change curve, circle line represents the UV of the water after process of the present invention
254value change curve.As shown in the figure, in During Process of Long-term Operation, the UV of method process of the present invention
254average removal rate be 70%, the UV of prior art process
254average removal rate be 33%, the present invention can remove the organism of humic acids better, has the remarkable decontamination effect improving better purified water.
The method of the present invention of employing as shown in Figure 5 and prior art carry out the COD of long period water treatment respectively
mncontent schematic diagram, wherein X-coordinate is treatment time of water, and unit is number of days, and ordinate zou is COD
mncontent, unit is milligrams per liter, and square line represents the COD of untreated former water
mncontent curve, triangle line represents the COD of the water after prior art process
mncontent curve, circle line represents the COD of the water after process of the present invention
mncontent curve.As shown in the figure, in During Process of Long-term Operation, the COD of method process of the present invention
mncontent than the COD of prior art process
mncontent is lower, can more effectively remove former Organic substance in water, has the remarkable strengthening effect better purified water.
The method of the present invention of employing as shown in Figure 6 and prior art carry out the DOC content schematic diagram of long period water treatment respectively, wherein X-coordinate is treatment time of water, unit is number of days, ordinate zou is DOC clearance, unit is per-cent, solid dot line represents the DOC clearance change curve of the water after prior art process, and hollow line represents the DOC clearance change curve of the water after process of the present invention.As shown in the figure, in During Process of Long-term Operation, the DOC clearance of method process of the present invention can improve about 10% than the DOC clearance of prior art process, can more effectively remove former Organic substance in water, has the remarkable strengthening effect better purified water.
If Fig. 7 is the turbidity change schematic diagram adopting method of the present invention and prior art respectively water to be carried out to long period water treatment, wherein X-coordinate is treatment time of water, unit is number of days, ordinate zou is turbidity (NTU), square line represents the turbidity change curve of untreated former water, triangle line represents the turbidity change curve of the water after prior art process, and circle line represents the turbidity change curve of the water after process of the present invention.As shown in the figure, in During Process of Long-term Operation, the turbidity of the water outlet of prior art at about 0.2NTU, and the turbidity of water outlet of the present invention in normal filter fly all lower than 0.1NTU.The average turbidity of method process of the present invention is lower than the average turbidity of prior art process, can be more stable and effectively remove particle in former water, has the unusual effect better purified water.
According to a preferred embodiment of the invention, when gas flow data is lower than airshed set(ting)value, ECU 10 increases airshed by controlling air inlet electromagnetic valve 12; When gas flow data is greater than airshed set(ting)value, ECU 10 reduces airshed by controlling air inlet electromagnetic valve 12.
According to a preferred embodiment of the invention, reverse osmosis rete 38 is aromatic polyamide film.
According to a preferred embodiment of the invention, wherein, the ORP numerical value detected is delivered in ECU 10 by ORP sensor 15; The ORP numerical value recorded and setting range compare by ECU 10, when the ORP numerical value recorded is less than the minimum value of setting range, ECU 10 controls ozonizer 8 to be increased the supply of ozone or controls the flooding quantity that the entering water electromagnetic valve of the first water-in 6 reduces the first water-in, numerically rises in setting range to make ORP; When the ORP numerical value recorded is greater than the maximum value of setting range, ECU 10 controls ozonizer 8 to be reduced the supply of ozone or controls the flooding quantity that the entering water electromagnetic valve of the first water-in 6 increases by the first water-in 6, is down in setting range to make ORP numerical value.
According to a preferred embodiment of the invention, ozone pre-oxidation reactive moieties 1 for the wall thickness that stainless steel is made be 3 millimeters, diameter is 0.13 meter and is highly the right cylinder of 2 meters.
According to a preferred embodiment of the invention, mixing portion 2 for the wall thickness that stainless steel is made be 3 millimeters, diameter is 0.11 meter and is highly the right cylinder of 0.4 meter.
According to a preferred embodiment of the invention, swash plate 29 angle of inclination is 45 degree to 60 degree.
According to a preferred embodiment of the invention, titanium plate micropore 39 is that the through hole of multiple 1-2 micron is evenly distributed on the curved slab that titanium metal panel makes.
According to a preferred embodiment of the invention, the rotating speed of the first adjustable stirrer 19 is 300 turns of per minutes, the rotating speed of the second adjustable stirrer 22 is 200 turns of per minutes, the rotating speed of the 3rd adjustable stirrer 23 is 150 turns of per minutes, the rotating speed of the 4th adjustable stirrer 24 is 100 turns of per minutes.
According to a preferred embodiment of the invention, one or several in the replaceable one-tenth Tai-Ace S 150 of polymeric aluminum chlorides solution, polyaluminium sulfate, liquor alumini chloridi.
Water treatment method of the present invention carries out accurate control in preset value and pre-determined range to reach optimized water treatment efficiency by ECU to multiple treating part, such as, if ozone concn is not in pre-determined range, too low then cannot be fully oxidized, excessive concentration then affects the effect of cohesion part, the microbial film generation adverse influence that also can produce filtration fraction interlayer, in the method, the vibration intensity control of ECU to the stirring velocity of the first adjustable stirrer 19 and ultrasonic vibration array 20 is improper, then be unfavorable for stirring and the fragmentation of impurities in water, be unfavorable for cohesion further.It is improper that ECU controls the rotating speed of second, third and the 4th adjustable stirrer 22,23 and 24, be then unfavorable for stirring and the fragmentation of impurities in water, be unfavorable for precipitating action and filteration further.
First, from the angle of organic matter removal, Fig. 8 is the UV adopting water treatment method of the present invention and prior art to carry out the water treatment of different ozone concn respectively
254change schematic diagram, wherein X-coordinate is ozone concn, and unit is milligrams per liter, and ordinate zou is UV
254clearance, unit is %, and solid line represents the UV of the water after prior art process
254clearance change curve, hollow line represents the UV of method process of the present invention
254clearance change curve.As shown in the figure, method provided by the invention is to UV
254total removal rate 50.5% ~ 73.2%, higher by 28.3% ~ 50.9% than 22.3% of prior art, wherein, during the ozone concn of 0.8 milligrams per liter, to removal UV
254total removal effect best.
Fig. 9 is the permanganate index (COD adopting water treatment method of the present invention and prior art respectively water to be carried out to different ozone concn water treatment
mn) change schematic diagram, wherein X-coordinate is ozone concn, and unit is milligrams per liter, and ordinate zou is COD
mnclearance, unit is %, and solid line represents the COD of the water after prior art process
mnclearance change curve, hollow line represents the COD of method process of the present invention
mnclearance change curve.As shown in the figure, method provided by the invention can effectively reduce COD
mnvalue, to COD
mntotal removal rate 26.6% ~ 63.0%, higher by 0 ~ 36.4% than the average removal rate 26.6% of prior art, wherein, during the ozone concn of 0.8 milligrams per liter, to removal COD
mntotal removal effect best.
Figure 10 adopts water treatment method of the present invention and prior art to change schematic diagram to the DOC that water carries out different ozone concn water treatment respectively, wherein X-coordinate is ozone concn, unit is milligrams per liter, ordinate zou is DOC clearance, unit is %, solid line represents the DOC clearance change curve of the water after prior art process, and hollow line represents the DOC clearance change curve of method process of the present invention.As shown in the figure, method provided by the invention can effectively reduce the value of DOC, to the average removal rate 28% of DOC, higher by 11% than 17% of prior art, wherein, during the ozone concn of 0.9 milligrams per liter, best to the total removal effect removing DOC.
To sum up, in water treatment method of the present invention, ozone concn is 0.8 ~ 0.9 milligrams per liter, has good strengthening effect to organic removal, also can be good at controlling to turbidity.Realize optimized decontamination effect improving.
Secondly, from the angle to particle removal, the decontamination effect improving of the present invention to particle is significantly better than prior art, and the method for the present invention of the employing see Figure 11 and prior art carry out the granule content change schematic diagram of the different-grain diameter of water treatment respectively to water.Wherein X-coordinate is treatment time of water, unit is hour, ordinate zou is granule content, granule number during unit is every milliliter, shown in Figure 11 a is be less than the granule content variation diagram of 2 microns, wherein, the granule content change curve of the curve representation prior art of top, the granule content change curve of the curve representation water treatment method of the present invention of below, shown in Figure 11 b is the granule content variation diagram of 2 microns to 5 microns, wherein, the granule content change curve of the curve representation prior art of top, the granule content change curve of the curve representation water treatment method of the present invention of below, shown in Figure 11 c is the granule content variation diagram of 5 microns to 15 microns, wherein, the granule content change curve of the curve representation prior art of top, the granule content change curve of the curve representation water treatment method of the present invention of below, shown in Figure 11 d is be greater than the granule content variation diagram of 15 microns, wherein, the granule content change curve of the curve representation prior art of top, the granule content change curve of the curve representation water treatment method of the present invention of below.As can be seen from the figure, compared to prior art, water treatment method of the present invention can significantly improve in water the particle removal effect being greater than 2 microns, further increases water purification ability.
According to a further advantageous embodiment of the invention, ECU 10 controls the pre-determined range of ozone concn is 0.85 milligrams per liter.
According to a further advantageous embodiment of the invention, ultrasonic vibration array 20 is piezo-electric type ultrasonic transducer or magnetostriction type ultrasonic transducer.
Should be understood that, above-mentioned embodiment of the present invention only for exemplary illustration or explain principle of the present invention, and is not construed as limiting the invention.Therefore, any amendment made when without departing from the spirit and scope of the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.In addition, claims of the present invention be intended to contain fall into claims scope and border or this scope and border equivalents in whole change and modification.
Claims (12)
1. an ozone pre-oxidation water treatment method, it comprises the following steps:
In a first step, with in the ozone pre-oxidation reactive moieties (1) of the first water-in (6) and the first water outlet (7), it comprises ozonizer (8), ozone diffuser (9) and ECU (10), the pending former water inputted from the first water-in (6) is sent to the first water outlet (7) by the fluid channel (11) being provided with ozone diffuser (9), airway (13) with air inlet electromagnetic valve (12) will be located at the ozone delivery that produces of ozonizer (8) of ozone pre-oxidation reactive moieties (1) bottom to the ozone diffuser (9) with titanium plate micropore (39), ECU (10) controls the ozone amount that the flooding quantity of the first water-in (6) and ozone diffuser (9) export, ozone concn is made to be in the water in the scope of 0.8 to 0.9 milligrams per liter and ozone oxidation reaction wherein 5 minutes,
In the second step, in the mixing portion (2) with the second water-in (16) and the second water outlet (17), it comprises the polymeric aluminum chlorides solution input aperture (18) of establishing at an upper portion thereof, the the first adjustable stirrer (19) hung down from the top of mixing portion (2) and the ultrasonic vibration array (20) being located at its underpart, mixing portion (2) is inputted through the second water-in (16) and polymeric aluminum chlorides solution through polymeric aluminum chlorides solution input aperture (18) from the water after the oxidation of the first water outlet (7), ECU (10) controls according to the flooding quantity being input to the second water-in (16) stirring and the vibration that the first adjustable stirrer (19) stirs and the vibration intensity of ultrasonic vibration array (20) is held mixing portion (2) water and polymeric aluminum chlorides solution carry out lasting 1 minute,
In third step, comprise the 3rd water-in (21) be positioned at bottom it, from hang down in its top second, third and fourth adjustable stirrer (22, 23, 24) and from it portion exports in the cohesion part (3) of the 3rd water outlet (39) of water, water from the second water outlet (17) condenses part (3), by second through the 3rd water-in (21) input, third and fourth adjustable stirrer (22, 23, 24) stir 15 minutes, ECU (10) controls second of cohesion part (3) according to the flooding quantity being input to the 3rd water-in (21), 3rd, with the 4th adjustable stirrer (22, 23, 24) rotating speed, wherein, the rotating speed of the first adjustable stirrer (19) is greater than the rotating speed of the second adjustable stirrer (22), the rotating speed of the second adjustable stirrer (22) is greater than the rotating speed of the 3rd adjustable stirrer (23), and the rotating speed of the 3rd adjustable stirrer (23) is greater than the rotating speed of the 4th adjustable stirrer (24),
In the 4th step, comprise in the sediment fraction (4) of the 4th water-in (27) of the side in the portion of being located thereon and the 4th water outlet (28) of opposite side, the water through cohesion part (3) is sent to through the 4th water-in (27) precipitating action that sediment fraction (4) carries out 35 minutes from the 3rd water outlet (39);
In the 5th step, comprise the 5th water-in (32) that is located at top and be located in the filtration fraction (5) of the 5th water outlet (33) of bottom, the water entering filtration fraction (5) is by being followed successively by coarse sands layer (35) that particle diameter is the thickness 0.2 meter of 4-8 millimeter, particle diameter from top to bottom after active carbon layer (36), particle diameter that the thickness of 0.8-1.5 millimeter is 0.4 meter are the filtering layer (34) of the quartz sand layer (37) of 0.7 meter and micron-sized reverse osmosis rete (38) in 0.9-1.4 mm of thickness from the 5th water outlet (33) discharge.
2. method according to claim 1, wherein, when ozone amount data are lower than ozone amount set(ting)value, ECU (10) increases ozone amount by controlling air inlet electromagnetic valve (12); When ozone amount data are greater than ozone amount set(ting)value, ECU (10) reduces airshed by controlling air inlet electromagnetic valve (12).
3. method according to claim 1, wherein, reverse osmosis rete (38) is aromatic polyamide film.
4. method according to claim 1, wherein, the ORP sensor (15) being located at the first water outlet (7) detects the water after the oxidation of the first water outlet (7) and ORP data is sent ECU (10), the ORP numerical value recorded and setting range compare by ECU (10), when the ORP numerical value recorded is less than the minimum value of setting range, the entering water electromagnetic valve of ECU (10) control ozonizer (8) increase ozone amount or control the first water-in (6) reduces the flooding quantity of the first water-in, numerically rise in setting range to make ORP, when the ORP numerical value recorded is greater than the maximum value of setting range, the entering water electromagnetic valve of ECU (10) control ozonizer (8) minimizing ozone amount or control the first water-in (6) increases the flooding quantity of the first water-in (6), is down in setting range to make ORP numerical value.
5. method according to claim 1, wherein, ozone pre-oxidation reactive moieties (1) for the wall thickness that stainless steel is made be 3 millimeters, diameter is 0.13 meter and is highly the right cylinder of 2 meters.
6. method according to claim 1, wherein, mixing portion (2) for the wall thickness that stainless steel is made be 3 millimeters, diameter is 0.11 meter and is highly the right cylinder of 0.4 meter.
7. method according to claim 1, wherein, the through hole that titanium plate micropore (39) is multiple 1-2 micron is evenly distributed on the curved slab that titanium metal panel makes.
8. method according to claim 1, wherein, the rotating speed that the rotating speed of the first adjustable stirrer (19) is 300 turns of per minutes, the rotating speed of the second adjustable stirrer (22) is 200 turns of per minutes, the rotating speed of the 3rd adjustable stirrer (23) is 150 turns of per minutes and the 4th adjustable stirrer (24) is 100 turns of per minutes.
9. method according to claim 1, wherein, one or several in the replaceable one-tenth Tai-Ace S 150 of polymeric aluminum chlorides solution, polyaluminium sulfate, liquor alumini chloridi.
10. method according to claim 1, wherein, ECU (10) is programmable control unit.
11. methods according to claim 1, wherein, it is 0.85 milligrams per liter that ECU (10) controls ozone concn.
12. methods according to claim 1, wherein, ultrasonic vibration array (20) is piezo-electric type ultrasonic transducer or magnetostriction type ultrasonic transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183936.7A CN104817218B (en) | 2015-04-17 | 2015-04-17 | A kind of ozone pre-oxidation method for treating water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183936.7A CN104817218B (en) | 2015-04-17 | 2015-04-17 | A kind of ozone pre-oxidation method for treating water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104817218A true CN104817218A (en) | 2015-08-05 |
| CN104817218B CN104817218B (en) | 2016-08-03 |
Family
ID=53727729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510183936.7A Expired - Fee Related CN104817218B (en) | 2015-04-17 | 2015-04-17 | A kind of ozone pre-oxidation method for treating water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104817218B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411337A (en) * | 2018-02-10 | 2018-08-17 | 中氧科技（广州）有限公司 | A kind of control method of array ozonization plant |
| CN113788526A (en) * | 2021-09-10 | 2021-12-14 | 南京水滴智能环保装备研究院有限公司 | Novel ozone oxidation device combined with intelligent water affairs |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1190646A (en) * | 1997-02-14 | 1998-08-19 | 株式会社日立制作所 | Water treatment method by ozonation and relative treatment apparatus |
| JP2003285059A (en) * | 2002-03-27 | 2003-10-07 | Jfe Engineering Kk | Control method of ozone supply in water treatment using ozone oxidation and membrane filtration |
| JP2007083207A (en) * | 2005-09-26 | 2007-04-05 | Fuji Electric Systems Co Ltd | Accelerated oxidation water treatment method and apparatus |
| JP2007083171A (en) * | 2005-09-22 | 2007-04-05 | Fuji Electric Systems Co Ltd | Method and apparatus for treating water |
| CN201240972Y (en) * | 2008-07-24 | 2009-05-20 | 华南理工大学 | Waste water advanced treatment apparatus combining ozone oxidation and downflow type aerating biological filter pool |
| CN102139990A (en) * | 2011-01-21 | 2011-08-03 | 樊利华 | Ultrasonic combined waste water treatment process and system of refuse leachate |
| CN102815836A (en) * | 2012-07-23 | 2012-12-12 | 北京桑德环境工程有限公司 | Treating system and treating method for hardly degradable organic waste water |
| CN203128360U (en) * | 2013-01-08 | 2013-08-14 | 刘标 | Device for cooperatively treating industrial sewage by multiple units |
-
2015
- 2015-04-17 CN CN201510183936.7A patent/CN104817218B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1190646A (en) * | 1997-02-14 | 1998-08-19 | 株式会社日立制作所 | Water treatment method by ozonation and relative treatment apparatus |
| JP2003285059A (en) * | 2002-03-27 | 2003-10-07 | Jfe Engineering Kk | Control method of ozone supply in water treatment using ozone oxidation and membrane filtration |
| JP2007083171A (en) * | 2005-09-22 | 2007-04-05 | Fuji Electric Systems Co Ltd | Method and apparatus for treating water |
| JP2007083207A (en) * | 2005-09-26 | 2007-04-05 | Fuji Electric Systems Co Ltd | Accelerated oxidation water treatment method and apparatus |
| CN201240972Y (en) * | 2008-07-24 | 2009-05-20 | 华南理工大学 | Waste water advanced treatment apparatus combining ozone oxidation and downflow type aerating biological filter pool |
| CN102139990A (en) * | 2011-01-21 | 2011-08-03 | 樊利华 | Ultrasonic combined waste water treatment process and system of refuse leachate |
| CN102815836A (en) * | 2012-07-23 | 2012-12-12 | 北京桑德环境工程有限公司 | Treating system and treating method for hardly degradable organic waste water |
| CN203128360U (en) * | 2013-01-08 | 2013-08-14 | 刘标 | Device for cooperatively treating industrial sewage by multiple units |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411337A (en) * | 2018-02-10 | 2018-08-17 | 中氧科技（广州）有限公司 | A kind of control method of array ozonization plant |
| CN108411337B (en) * | 2018-02-10 | 2019-11-05 | 中氧科技（广州）有限公司 | A kind of control method of array ozonization plant |
| CN113788526A (en) * | 2021-09-10 | 2021-12-14 | 南京水滴智能环保装备研究院有限公司 | Novel ozone oxidation device combined with intelligent water affairs |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104817218B (en) | 2016-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Das et al. | Recent progress on electrocoagulation process for wastewater treatment: A review | |
| CN101704609B (en) | Feedwater treatment method by pre-ozonation and aerated biological activated carbon | |
| US20130264197A1 (en) | Nanocatalytic electrolysis and flocculation apparatus | |
| US20170113957A1 (en) | Systems and methods for reduction of total organic compounds in wastewater | |
| CN208949039U (en) | A kind of processing unit of black and odorous water | |
| CN101851036B (en) | Method for treating biological laboratory wastewater | |
| CN109734248B (en) | Advanced treatment method and equipment for reverse osmosis concentrated water | |
| CN107555660A (en) | A kind of drink water purifying method | |
| CN204454801U (en) | A kind of tap water low temperature Intelligent purifying process piping system | |
| CN104591443A (en) | Circular treatment equipment for aquiculture agricultural waste water | |
| Abdel-Fatah et al. | Integrated treatment of municipal wastewater using advanced electro-membrane filtration system | |
| CN104817217B (en) | A kind of ozone pre-oxidation water treatment facilities and method for treating water thereof | |
| CN103553236A (en) | Process system for removing ammonia nitrogen/alga in surface water by enhancing conventional treatment | |
| CN105585222A (en) | Chemical sewage treatment device | |
| CN111285505A (en) | Reservoir water treatment process | |
| CN201785288U (en) | Treatment system for treating inferior V-class surface water into domestic drinking water | |
| CN106830430B (en) | Efficient and rapid treatment process and method for low-temperature and low-turbidity water | |
| AU2013337588B2 (en) | Process and apparatus for water treatment | |
| CN104817218B (en) | A kind of ozone pre-oxidation method for treating water | |
| CN101891337A (en) | Treating system and method for treating surface water worse than Grade V into drinking water | |
| CN101306889A (en) | Preoxidation treatment process of micro-polluted source water | |
| CN104591450B (en) | A kind of running water low temperature Intelligent antibacterial pipe-line system | |
| CN208684676U (en) | A kind of garbage percolation liquid treating system | |
| CN219217782U (en) | System for removing 2-MIB in water | |
| CN206872629U (en) | A kind of sewage disposal system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20200417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |