CN102351285A - Device and method for killing tiny organisms in water body by using hydrodynamic cavitation and strengthened ozone - Google Patents
Device and method for killing tiny organisms in water body by using hydrodynamic cavitation and strengthened ozone Download PDFInfo
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- CN102351285A CN102351285A CN2011102783695A CN201110278369A CN102351285A CN 102351285 A CN102351285 A CN 102351285A CN 2011102783695 A CN2011102783695 A CN 2011102783695A CN 201110278369 A CN201110278369 A CN 201110278369A CN 102351285 A CN102351285 A CN 102351285A
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Abstract
The invention discloses a device and a method for killing tiny organisms in a water body by using hydrodynamic cavitation and strengthened ozone, which belong to the technical field of water treatment. The device comprises a circulating water pump, an ozone generation system, a temperature detection and circulating cooling system and a water tank, wherein the temperature detection and circulating cooling system is fixedly arranged on the top of the water tank; the circulating water pump is fixedly connected with the water inlet end of the circulating water pump by an inlet flange; the lower end of a reverse L-shaped pipeline on the right side of the water tank is fixedly connected with a water outlet end by an outlet flange; a hydrodynamic cavitation generator is also arranged at the water inlet end of the circulating water pump or on the water tank; and the ozone generation system is fixedly connected with the lower end pipeline of the circulating water pump by a pipeline. In order to solve the problem of low ozone utilization rate in the process of treating, sterilizing and disinfecting sewage by the traditional bubbling ozone method, the tiny organisms in the water body are killed by the cavitation effect and the ozone oxidization strengthening capability of the hydrodynamic cavitation, so that the ozone utilization rate is increased.
Description
Technical field
The invention belongs in the water-treatment technology field a kind of physical chemistry technology of utilizing and kill, suppress tiny organism apparatus and method in the water body, relate in particular to and a kind ofly adopt Hydrodynamic cavitation and strengthen the method that ozone technology is removed Microcystis aeruginosa and degrading microcystic toxins in the water body.
Background technology
Lake (reservoir) is an important natural resource; Along with the fast development of China's industrial and agricultural production and the expansion of city size; A large amount of industry, life and agricultural area source sewage enter water body; Make the eutrophication phenomenon of water body serious day by day, algal bloom is the performance that water surrounding receives severe contamination, and the generation of wawter bloom has further aggravated water pollution.Over nearly 20 years, water bloom of water body disasters such as China lake have become the important factor of restriction society and the further sustainable development of national economy.The key character of eutrophication be spring and summer the high temperature period algae grow in a large number, form the zonal wawter bloom of green silk, caused partial area aquatic ecological environment severe exacerbation.Algae swims in the water surface not only influences the attractive in appearance of water surrounding, swims on the water surface after the more important thing is a large amount of algae death, destroys aquatic ecosystem, and it is aging to quicken the lake.The algae corpse is decomposed by heterotrophic bacterium in the water, produces the further releasing body intracellular toxin of stench, and promptly the algae toxin with severe exacerbation water quality, influences water-purifying process, and harm humans is healthy.Algal tufa takes place frequently and certainly will cause surrounding area people's productive life water difficulty, thereby influences social stability.
" cavitation effect " is meant in flow the cavity and the phenomenon that crumbles and fall thereof that the unexpected variation owing to pressure produces.Hydrodynamic cavitation can pass through water screw, impeller etc. and produce in the rotation of water body high speed, and consequent powerful Hydrodynamic cavitation effect causes serious harm to water screw, impeller or the like.In practical application, Hydrodynamic cavitation is many to be produced by restraining devices such as the orifice plates of in water pipe, installing, and these restraining devices are being referred to as the cavitation producer in the present invention.To in the space around the cavity, produce TRANSIENT HIGH TEMPERATURE (about 5000 K) and high pressure (more than 500 bar) when cavity is crumbled and fall, rate of temperature change is up to 10
9K/s, and be attended by intensive shockwave and speed up to the microjet more than 100 m/s.Simultaneously, water molecules meeting cracking produces the extremely strong non-selectivity oxygenant hydroxyl free radical (HO) of oxidisability in this extreme environment.The Microcystis aeruginosa tool is colourless, soft and deliquescent glue quilt arranged.Cell sphere or Long Circle, the most arrangement closely; Cell pale blue green or olive-green often have bubble (false ghost), are suspended in the water body more.Under the Hydrodynamic cavitation condition, Microcystis aeruginosa receives machinery and oxidative damage easily.Therefore, the Hydrodynamic cavitation algae removal is exactly to utilize above-mentioned cavitation effect to kill or suppress the technology of algal grown breeding.
In addition, ozone is a kind of strong oxidizer, and its oxidation capacity is stronger 5.1 times than chlorine, and is stronger 3.7 times than dioxide peroxide.Ozone pair cell wall has stronger absorption and penetrativity, can pass through cell walls, destroys cytolemma, and directly destroys RNA, DNA and arrestin matter synthetic etc. soon, causes frustule to disintegrate, and makes necrocytosis.Microcystis aeruginosa and algae toxin thereof are responsive to ozone, and when ozone dosage during greater than 1 mg/L, frustule begins to appear obvious reduction, as long as the ozone of 0.5 mg/L just can be removed the algae toxin more than 98% after contacting in 5 minutes.Ozone is unstable in the Hydrodynamic cavitation environment, produces the secondary oxide that extremely strong nascent oxygen [O] of oxidation capacity and hydroxyl free radical (HO) etc. have extremely strong deactivation.Therefore, the cavitation effect that utilizes Hydrodynamic cavitation to produce not only can promote the matter transmission of ozone in water body; Can also promote the more generation of strong oxidizer hydroxyl free radical; And receive the Microcystis aeruginosa cell of Hydrodynamic cavitation injury responsive more to ozone, thus improve ozone utilization rate, shorten the treatment time; Reduce processing cost, strengthen insect killing effect.
Summary of the invention
The technical problem that solves
To traditional bubbling ozone method dispose of sewage, the low problem of ozone utilization rate during sterilization and disinfection; The invention provides a kind of apparatus and method of utilizing Hydrodynamic cavitation and reinforcement ozone thereof to kill tiny organism in the water body; " cavitation effect " through Hydrodynamic cavitation and can strengthen the ability of ozone oxidation effect; Tiny organism in the water body is killed, and has improved ozone utilization rate.
Technical scheme
A kind of device that utilizes Hydrodynamic cavitation and reinforcement ozone thereof to kill tiny organism in the water body of the present invention, it comprises: water circulating pump, ozone generation system, temperature detection circulating cooling system, water tank; Said temperature detection circulating cooling system is fixedly mounted on the top of said water tank; Said temperature detection circulating cooling system comprises Stainless Steel U heat exchanger and temperature measuring set; Water tank inside is stretched in said Stainless Steel U heat exchanger and temperature measuring set lower end, and the effect of temperature detection circulating cooling system is an attemperation; Said water circulating pump comprises feed-water end, water side; Said water tank lower channel is fixedly connected with the feed-water end of water circulating pump through suction flange; The lower end of " L " type pipeline of falling on said water tank right side is fixedly connected with the water side through discharge flange, on the feed-water end of water circulating pump or water tank, also is provided with the Hydrodynamic cavitation producer; Said ozone generation system is fixedly connected on the lower channel of water tank through pipeline.
The lower channel of said water tank is provided with the Hydrodynamic cavitation producer, and said Hydrodynamic cavitation producer is positioned at ozone generation system and top, water circulating pump fixed connection place.When pump operation, because the obstruction of cavitation producer, pump can produce the effect of setting-out, can produce very high pressure before the cavitation producer, and pressure significantly descends behind the cavitation producer, thereby before and after the cavitation producer, produces significant pressure difference and Hydrodynamic cavitation.
" L " type pipeline that falls on said water tank right side is provided with the Hydrodynamic cavitation producer.The effect of Hydrodynamic cavitation producer is the same here.
Said water tank also comprises under meter, second tensimeter and first tensimeter; Said under meter, second tensimeter and first tensimeter are fixedly connected sequentially on " L " type pipeline on water tank right side through Y-tube from top to bottom, and second tensimeter, first tensimeter lay respectively at the both sides up and down of cavitation producer.
The structure formation of said Hydrodynamic cavitation producer has 3 types, can be the single hole orifice plate, porous orifice plate in different apertures, a kind of with in the horizontal blade orifice plate.
Be disposed with stopping valve, vacuum meter from left to right on said ozone generation system and the pipeline that water circulating pump is fixedly connected.
Said water circulating pump is selected impeller pump for use.
The top of said water tank is provided with the treating water water inlet.Pending water is from being processed into mouth of a river access to plant.
The top of said water tank is equipped with ozone tail gas monitoring and absorption unit, and passes through welded pipe line or hose connection with water tank.The effect that ozone tail gas monitoring and absorption unit are set is to detect and absorption tail gas.The bottom of said water circulating pump is provided with the treating water outlet.Can export water sampling or judge water quality at treating water according to the treated water body physical and chemical index of on-line monitoring apparatus measures.Said water tank material can be selects stainless steel, engineering plastics or other impregnating material for use.
Of the present inventionly a kind ofly utilize Hydrodynamic cavitation and strengthen the method that ozone is killed tiny organism in the water body, present method is used and is above-describedly a kind ofly utilized Hydrodynamic cavitation and strengthen ozone and kill in the water body device of tiny organism and kill the atom that receives in the treating water.Improved ozone utilization rate.
Beneficial effect
The present invention than the advantage of prior art is:
(1) the present invention utilizes the physical chemistry technology, and Hydrodynamic cavitation is strengthened ozonize sewage, and processing speed is obviously accelerated, and ozone utilization rate is very high, and non-secondary pollution.
(2) device each several part of the present invention only need pass through simple connection, just can carry out water treatment, and it is simple in structure, processing ease, and investment and running cost are low.
Description of drawings
Fig. 1 is a kind of structural representation that utilizes Hydrodynamic cavitation and reinforcement ozone thereof to kill the device of tiny organism in the water body of the present invention;
Fig. 2 is the single hole orifice plate;
Fig. 3 is the porous orifice plate;
Fig. 4 is with horizontal blade single hole orifice plate.
Among the figure: 1. the monitoring of water circulating pump 2. Hydrodynamic cavitation generators 3. ozone generation systems 4. temperature detection circulating cooling systems 5. water tanks 6. ozone tail gas is handled water water inlet 11. stop valves 12. vacuum meters 13. first Pressure gauges 14. second Pressure gauges 15. flowmeters 16. processing water outs 17. Stainless Steel U heat exchangers 18. temperature measuring sets 190. suction flanges 191. outlet(discharge) flanges 201. single hole orifice plates 202. porous orifice plates 203. with absorption plant 7. water inlet ends 8. water sides 9. and is with horizontal blade single hole orifice plate.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
A kind of apparatus and method of utilizing Hydrodynamic cavitation and reinforcement ozone thereof to kill tiny organism in the water body of the present invention; Based on national International Technology collaborative project (2010DFB93700), project name: Hydrodynamic cavitation associating ozone is killed algae complete set technology research and development in the eutrophication water.The present invention has formulated two kinds of Hydrodynamic cavitation flow processs, i.e. negative pressure (suction) Hydrodynamic cavitation flow process and malleation (setting-out) Hydrodynamic cavitation flow process according to the pressure characteristic that produces Hydrodynamic cavitation.In conjunction with Fig. 1; Cavitation producer 2 can be arranged on water circulating pump 1 inlet end 7, and when water circulating pump 1 operation, water circulating pump 1 can produce the effect of suction; Very high vacuum tightness be can produce behind the cavitation producer 2, thereby pressure difference and Hydrodynamic cavitation produced in cavitation producer 2 front and back.Cavitation producer 2 also can be installed in water circulating pump 1 water outlet end 8; When water circulating pump 1 operation; Because the obstruction of cavitation producer 2, water circulating pump 1 can produce the effect of setting-out, can produce very high pressure before the cavitation producer 2; Cavitation producer 2 back pressure significantly descend, thereby produce significant pressure difference and Hydrodynamic cavitation in cavitation producer 2 front and back.The present invention adopts stainless steel pipe, is used for the connection between each instrument of device, parts.
8 install a cavitation producer 2 in water circulating pump 1 feed-water end 7 or water side, open and attemperation detects circulating cooling system 4, receive in the water tank 5 that treating water pours the Hydrodynamic cavitation device into a certain amount of, and sampling and measuring is initially handled the water body physical and chemical index.Water treatment is carried out in 1 operation of ON cycle water pump, feeds ozone when needing, and behind the water body circular treatment certain hour, closes water circulating pump 1 and ozone generation system 3, measures the water body physical and chemical index after handling.
It is the impeller pump of 1.5 kW that following examples 1-8 adopts electric power, and lift is 32 meters, and revolution is 2900 rev/mins, and peak flow is 4 cubic metres/hour.The stainless steel pipe bore is 29.0 mm, is used for being connected between device water circulating pump 1 and instrument and each parts.When Hydrodynamic cavitation is handled, in the feed-water end feeding ozone of ring water pump 1, the combination treatment of carrying out Hydrodynamic cavitation and ozonize.Following examples 1-8 is an example with the water of the green Microcystis aeruginosa of Treatment of Copper.
Embodiment 1
The a kind of of present embodiment utilizes Hydrodynamic cavitation and strengthens the apparatus and method that ozone is killed tiny organism in the water body; The structure formation that the Hydrodynamic cavitation producer 2 that it comprised adopts like the single hole orifice plate 201 of Fig. 2; 12 mm (parameter is seen table 1) are selected in the aperture for use, and water tank 5 materials are stainless steel.In Hydrodynamic cavitation device water tank 5, pour 1.75 L algae water into, initial chlorophyll a and microcystic aeruginosa frustule number are respectively 30 μ g/L, 1.8 * 10
6Individual/mL.Circular treatment is 20 minutes under 20 ° of C, and chlorophyll a and the microcystic aeruginosa frustule measured after handling are counted concentration.Under negative pressure (suction) Hydrodynamic cavitation operating mode, chlorophyll a and Microcystis aeruginosa frustule are counted clearance and are respectively 14.7% and 15.1%.Treatment time extends to 60 minutes, and under negative pressure (suction) Hydrodynamic cavitation operating mode, chlorophyll a and Microcystis aeruginosa frustule are counted clearance and be respectively 30.1% and 30.6%.
Under malleation (setting-out) Hydrodynamic cavitation operating mode, Hydrodynamic cavitation was handled after 20 minutes, and chlorophyll a and Microcystis aeruginosa frustule are counted clearance and be respectively 12.8% and 13.1%.
Embodiment 2
The a kind of of present embodiment utilizes Hydrodynamic cavitation and strengthens the apparatus and method that ozone is killed tiny organism in the water body; The structure formation that the Hydrodynamic cavitation producer 2 that it comprised adopts like the horizontal blade single hole of the band of Fig. 4 orifice plate 203; 6 mm are selected in the aperture for use; Face is installed in water circulating pump 1 feed-water end at 11 razor blades of welding, the blade space 0.5mm (parameter is seen table 2) of evenly arranging with this orifice plate in the hole; Water tank 5 materials are engineering plastics.In Hydrodynamic cavitation device water tank, pour 2.5 L algae water into, microcystic aeruginosa frustule number is 3.5 * 10
6Individual/mL.Circular treatment algae water is 20 minutes under 25 ° of C, and chlorophyll a and the microcystic aeruginosa frustule measured after handling are counted concentration.Under negative pressure (suction) Hydrodynamic cavitation operating mode, it is 6% that the Microcystis aeruginosa frustule is counted clearance.With 1 L through with handle through Hydrodynamic cavitation after algae water be not placed in the same bio-incubator, continue normal cultured and observe.Counting concentration through microcystic aeruginosa frustule in the algae water after the Hydrodynamic cavitation processing descends day by day; Counting concentration through microcystic aeruginosa frustule in the algae water after the Hydrodynamic cavitation processing rises day by day; Through cultivating the 7th day after the Hydrodynamic cavitation processing, the Microcystis aeruginosa frustule is counted clearance and is reached 55%.
The algae treatment time of water was extended to 30 minutes from 20 minutes, and Hydrodynamic cavitation was cultivated the 7th day after handling, and the Microcystis aeruginosa frustule is counted clearance and reached 60%.
Embodiment 3
The a kind of of present embodiment utilizes Hydrodynamic cavitation and strengthens the apparatus and method that ozone is killed tiny organism in the water body; The Hydrodynamic cavitation producer that it comprised adopts like the single hole orifice plate 201 (parameter is seen table 1) in the 6 mm apertures of Fig. 2 with like the hole count position 9 of Fig. 3, porous orifice plate 202 (parameter is seen table 3) the unitized construction form that the aperture is 2 mm; Two orifice plate distance aparts are 30 mm, and this combined pore plate is installed in water circulating pump 1 feed-water end.In the water tank 5 of Hydrodynamic cavitation device, pour 2.5 L algae water into, microcystic aeruginosa frustule number is 3.5 * 10
6Individual/mL.Circular treatment algae water is 20 minutes under 25 ° of C, and chlorophyll a and the microcystic aeruginosa frustule measured after handling are counted concentration.Under negative pressure (suction) Hydrodynamic cavitation operating mode, it is 6% that the Microcystis aeruginosa frustule is counted clearance.After will passing through and not handling through Hydrodynamic cavitation
Algae water be placed in the same incubator, continue normal cultured and observe.Counting concentration through microcystic aeruginosa frustule in the algae water after the Hydrodynamic cavitation processing descends day by day; Counting concentration through microcystic aeruginosa frustule in the algae water after the Hydrodynamic cavitation processing rises day by day; Through cultivating the 7th day after the Hydrodynamic cavitation processing, the Microcystis aeruginosa frustule is counted clearance and is reached 59%.
The algae treatment time of water was extended to 30 minutes from 20 minutes, handled the back the 7th day, the Microcystis aeruginosa frustule is counted clearance and is reached 68%.
Embodiment 4
The a kind of of present embodiment utilizes Hydrodynamic cavitation and strengthens the apparatus and method that ozone is killed tiny organism in the water body; Hydrodynamic cavitation producer that it comprised 2 adopts like the single hole orifice plate 201 (parameter is seen table 1) in the 6 mm apertures of Fig. 2 and is porous orifice plate 202 (parameter is seen table 3) the unitized construction form of 2 mm like 9 apertures, hole count position of Fig. 3; Two orifice plate distance aparts are 30 mm, and this combined pore plate is installed in water circulating pump 1 feed-water end.In Hydrodynamic cavitation device water tank 5, pour 2.5 L algae water into, microcystic aeruginosa frustule number is 3.5 * 10
6Individual/mL.Under 25 ° of C, in algae water, add the ydrogen peroxide 50 of 1 mmol/L, circular treatment algae water 20 minutes, chlorophyll a and the microcystic aeruginosa frustule measured after handling are counted concentration.Under negative pressure (suction) Hydrodynamic cavitation operating mode, it is 6% that the Microcystis aeruginosa frustule is counted clearance.To pass through and not be placed in the same incubator, and continue normal cultured and observe through the algae water after the Hydrodynamic cavitation processing.Counting concentration through microcystic aeruginosa frustule in the algae water after the Hydrodynamic cavitation processing descends day by day; Counting concentration through microcystic aeruginosa frustule in the algae water after the Hydrodynamic cavitation processing rises day by day; Through cultivating the 7th day after the Hydrodynamic cavitation processing, the Microcystis aeruginosa frustule is counted clearance and is reached 65%.
In algae water, add the ydrogen peroxide 50 of 1 mmol/L and the ferrous sulfate of 0.1 mmol/L; Adopt the orifice plate in 6 mm apertures and the orifice plate combination in 2 mm apertures, 9 holes; Handle through 20 minutes Hydrodynamic cavitations, under negative pressure (suction) Hydrodynamic cavitation operating mode, it is 15% that the Microcystis aeruginosa frustule is counted clearance.Handled the back the 7th day through Hydrodynamic cavitation, the Microcystis aeruginosa frustule is counted clearance and is reached 70%.
Embodiment 5
The a kind of of present embodiment utilizes Hydrodynamic cavitation and strengthens the apparatus and method that ozone is killed tiny organism in the water body, the structure formation that the Hydrodynamic cavitation producer 2 that it comprised adopts like the single hole orifice plate 201 of Fig. 2, and 12 mm (parameter is seen table 1) are selected in the aperture for use.In Hydrodynamic cavitation device water tank 5, pour 1.75 L algae water into, initial chlorophyll a and microcystic aeruginosa frustule number are respectively 30 μ g/L, 1.8 * 10
6Individual/mL.Circular treatment is 5 minutes under 20 ° of C.In the treating processes, feed the ozone/oxygen oxygen mixture, charge flow rate is 0.5 L/min, and the ozone generating capacity is 0.46 mg/min.Chlorophyll a and the microcystic aeruginosa frustule measured after handling are counted concentration.Under negative pressure (suction) Hydrodynamic cavitation operating mode, chlorophyll a and Microcystis aeruginosa frustule are counted clearance and are respectively 88.4% and 90.5%.Treatment time extends to 6 minutes, and then chlorophyll a and Microcystis aeruginosa frustule are counted clearance and risen to 95.2% and 94.3% respectively.
Under malleation (setting-out) Hydrodynamic cavitation operating mode, to handle after 5 minutes, chlorophyll a and Microcystis aeruginosa frustule are counted clearance and are respectively 75.0% and 62.5%.Under imperforate plate and no waterpower cavitation operating mode, logical ozonize is after 5 minutes, and chlorophyll a and Microcystis aeruginosa frustule are counted clearance and be respectively 29.7% and 23.6%.
Embodiment 6
The a kind of of present embodiment utilizes Hydrodynamic cavitation and strengthens the apparatus and method that ozone is killed tiny organism in the water body, the structure formation that the Hydrodynamic cavitation producer 2 that it comprised adopts like the single hole orifice plate 201 of Fig. 2, and 12 mm (parameter is seen table 1) are selected in the aperture for use.In Hydrodynamic cavitation device water tank 5, pour 1.75 L algae water into, initial chlorophyll a and microcystic aeruginosa frustule number are respectively 29 μ g/L, 1.6 * 10
6Individual/mL.Circular treatment is 5 minutes under 20 ° of C.In the treating processes, feed the ozone/oxygen oxygen mixture, charge flow rate is 0.5 L/min, and the ozone generating capacity is respectively 0.50 and 0.58 mg/min.Chlorophyll a and the microcystic aeruginosa frustule measured after handling are counted concentration.
Under negative pressure (suction) Hydrodynamic cavitation operating mode and 0.50 mg/min ozone flux, chlorophyll a and Microcystis aeruginosa frustule are counted clearance and are respectively 90.4% and 92.4%.Under 0.58 mg/min ozone flux, then chlorophyll a and Microcystis aeruginosa frustule are counted clearance and are risen to 96.4% and 94.8% respectively.
Embodiment 7
The a kind of of present embodiment utilizes Hydrodynamic cavitation and strengthens the apparatus and method that ozone is killed tiny organism in the water body, the structure formation that the Hydrodynamic cavitation producer 2 that it comprised adopts like the single hole orifice plate 201 of Fig. 2, and 12 mm (parameter is seen table 1) are selected in the aperture for use.In Hydrodynamic cavitation device water tank 5, pour 15 L algae water into, initial chlorophyll a and microcystic aeruginosa frustule number are respectively 46 μ g/L, 3.63 * 10
6Individual/mL.Circular treatment is 5 minutes under 20 ° of C.In the treating processes, feed the ozone/oxygen oxygen mixture, charge flow rate is 2 L/min, and the ozone generating capacity is 13.6 mg/min.Chlorophyll a and the microcystic aeruginosa frustule measured after handling are counted concentration.Under negative pressure (suction) Hydrodynamic cavitation operating mode, chlorophyll a and Microcystis aeruginosa frustule are counted clearance and are respectively 36% and 40%.Prolong treatment time to 10 minute, then chlorophyll a and Microcystis aeruginosa frustule are counted clearance and are risen to 78% and 89% respectively.To pass through and not be placed in the same incubator, and continue normal cultured and observe through the algae water after the Hydrodynamic cavitation processing.Count concentration through microcystic aeruginosa frustule in the algae water after the Hydrodynamic cavitation processing and descend day by day, color shoals, and counts concentration through microcystic aeruginosa frustule in the algae water after the Hydrodynamic cavitation processing and rises day by day, darkens.Handle 10 minutes sample through Hydrodynamic cavitation, cultivated the 4th day, chlorophyll a and Microcystis aeruginosa frustule are counted clearance and are risen to 96.5% and 99.5% respectively, and water sample is also become colourless by deep green.
Embodiment 8
The a kind of of present embodiment utilizes Hydrodynamic cavitation and strengthens the apparatus and method that ozone is killed tiny organism in the water body, the structure formation that the Hydrodynamic cavitation producer 2 that it comprised adopts like the single hole orifice plate 201 of Fig. 2, and 12 mm (parameter is seen table 1) are selected in the aperture for use.In Hydrodynamic cavitation device water tank 5, pour view fishpond, 15 L garden water into, initial chlorophyll a concentration is 38 μ g/L.Circular treatment is 10 minutes under 20 ° of C.In the treating processes, feed the ozone/oxygen oxygen mixture, charge flow rate is 2 L/min, and the ozone generating capacity is 13.6 mg/min.Measure the chlorophyll-a concentration after handling.Under negative pressure (suction) Hydrodynamic cavitation operating mode, the chlorophyll a clearance is 88%.Treatment time extends to 20 minutes, and then the chlorophyll a clearance rises to 98% respectively, and ozone utilization rate reaches 99.5%.
Claims (10)
1. one kind is utilized Hydrodynamic cavitation and strengthens the device that ozone is killed tiny organism in the water body, it is characterized in that it comprises:
Water circulating pump (1), ozone generation system (3), temperature detection circulating cooling system (4), water tank (5);
Said temperature detection circulating cooling system (4) is fixedly mounted on the top of said water tank (5); Said temperature detection circulating cooling system (4) comprises Stainless Steel U heat exchanger (17) and temperature measuring set (18), and water tank (5) inside is stretched in said Stainless Steel U heat exchanger (17) and temperature measuring set (18) lower end;
Said water circulating pump (1) comprises feed-water end (7), water side (8); Said water tank (5) lower channel is fixedly connected with the feed-water end (7) of water circulating pump (1) through suction flange (190); The lower end of " L " type pipeline of falling on said water tank (5) right side is fixedly connected with water side (8) through discharge flange (191), on the feed-water end (7) of water circulating pump (1) or water tank (5), also is provided with Hydrodynamic cavitation producer (2);
Said ozone generation system (3) is fixedly connected on the lower channel of water tank (5) through pipeline.
2. device according to claim 1; It is characterized in that; The lower channel of said water tank (5) is provided with Hydrodynamic cavitation producer (2), and said Hydrodynamic cavitation producer (2) is positioned at ozone generation system (3) and top, water circulating pump (1) fixed connection place.
3. device according to claim 1 and 2 is characterized in that, " L " type pipeline that falls on said water tank (5) right side is provided with Hydrodynamic cavitation producer (2).
4. device according to claim 3; It is characterized in that; Said water tank (5) also comprises under meter (15), second tensimeter (14) and first tensimeter (13); Said under meter (15), second tensimeter (14) and first tensimeter (13) are fixedly connected sequentially on " L " type pipeline on water tank (5) right side through Y-tube from top to bottom, and second tensimeter (14), first tensimeter (13) lay respectively at the both sides up and down of cavitation producer (2).
5. according to claim 2 or 4 described devices, it is characterized in that the structure formation of said Hydrodynamic cavitation producer (2) has 3 types, can be the single hole orifice plate (201), porous orifice plate (202) in different apertures, a kind of with horizontal blade orifice plate (203).
6. device according to claim 5 is characterized in that, is disposed with stopping valve (11), vacuum meter (12) from left to right on said ozone generation system (3) and the pipeline that water circulating pump (1) is fixedly connected.
7. device according to claim 6 is characterized in that, said water circulating pump (1) is selected impeller pump for use.
8. device according to claim 7; It is characterized in that; The top of said water tank (5) is provided with treating water water inlet (9); The top of said water tank (5) is equipped with ozone tail gas monitoring and absorption unit (6), and passes through welded pipe line or hose connection with water tank (5), and the bottom of said water circulating pump (1) is provided with treating water outlet (16).
9. device according to claim 8 is characterized in that, said water tank (5) material can be selects stainless steel, engineering plastics for use.
10. one kind is utilized Hydrodynamic cavitation and strengthens the method that ozone is killed tiny organism in the water body; It is characterized in that, use that claim 9 is described a kind ofly to be utilized Hydrodynamic cavitation and strengthen ozone and kill in the water body device of tiny organism and kill the atom that receives in the treating water.
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CN108029846A (en) * | 2017-12-08 | 2018-05-15 | 广西科技大学 | Utilize the method for ozone-Hydrodynamic cavitation collaboration processed soybeans protein isolate |
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CN111348720B (en) * | 2020-03-16 | 2022-06-14 | 辽宁大学 | Orifice plate-based hydrodynamic cavitation system and method for degrading antibiotics in wastewater |
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