CN102311165B - Method and system for removing environmental hormone type pollutants and black and odorous matter in water bodies - Google Patents
Method and system for removing environmental hormone type pollutants and black and odorous matter in water bodies Download PDFInfo
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- CN102311165B CN102311165B CN2010102218169A CN201010221816A CN102311165B CN 102311165 B CN102311165 B CN 102311165B CN 2010102218169 A CN2010102218169 A CN 2010102218169A CN 201010221816 A CN201010221816 A CN 201010221816A CN 102311165 B CN102311165 B CN 102311165B
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Abstract
The invention relates to a method and a system for removing environmental hormone type pollutants and black and odorous matter in water bodies. The method comprises the steps that: pure oxygen is pressurized to 0.05 to 0.2MPa and is introduced into an ozone generator, and ozonized pure oxygen with the ozone volume percentage rate being 4 percent to 15 percent; and a plurality of rotary spray nozzles or microporous titanium plate aerators are arranged in the water bodies to be treated, and the ozonized pure oxygen and the water bodies to be treated are fully mixed through the rotary spray nozzles or the microporous titanium plate aerators. The system comprises an ozonized pure oxygen preparation device and a plurality of rotary spray nozzles, wherein the rotary spray nozzles are arranged in the water bodies to be treated, in addition, air inlet pipes are connected with the output end of the ozonized pure oxygen preparation device, and further, the system also comprises a dissolved oxygen water preparation device which provides high-concentration dissolved oxygen water for the rotary spray nozzles. The method and the system have the advantages that color and smell type substances and environmental hormone type pollutants of the water bodies can be simultaneously removed, the oxygen consumption rate of the water bodies can be greatly reduced, and the self cleaning capacity of the water bodies is improved.
Description
Technical field
The present invention relates to the water surrounding reparation, is multiple-effect treatment process and the system that is applicable to black and odorous water, is particularly suitable for being subject to severe contamination and causes the urban look river of the black smelly phenomenon of water body and Endocrine Disruptors concentration over-standard.
Background technology
In urbanization process, because sewage collecting is processed and pollution of area source Controlling System imperfection, a large amount of pollutents enter the urban look river, cause the river dissolved oxygen to be consumed totally, and serious " black smelly " phenomenon occurs water body.After water body enters anaerobic stages, the anaerobion amount reproduction, and large amount of organic in water body and bed mud is carried out to the acidifying decomposition, and producing various volatile orgnnic comopounds, water body starts to occur the putridness smell, has a strong impact on riverbank resident's physical and mental health.In black and odorous river, a large amount of fish and other hydrobiont death, river ecological is subject to catastrophic explosion.When Dissolved Oxygen in Water approaches 0mg/L, produce sulfuration ferrimanganic class inorganics and Humus organism in water body, present " deceiving " state, hydrogen sulfide and the smelly element of soil produced by the secretion of anaerobism actinomycetes and isocamphol make water body present strong " smelly " flavor effect.Except conventional pollutent, this year, investigation showed, in the Polluted Urban river, environmental hormone class micropollution substrate concentration is very high, generally reach 600ng/L～6000ng/L scope, and the water ecology level of security should be 10ng/L, therefore, the control of urban river environmental hormone class micropollutant has become pressing issues that concern ecological security of water environment.
For the black smelly phenomenon problem of urban river, launched a large amount of research and practices both at home and abroad.Current improvement method mainly comprises Physical, biological process and aeration aerating etc.
Physical mainly comprises a section dirt, water transfer, desilting etc.The river that adopts Physical to administer, its Water quality can be significantly improved.But these class methods often need a large amount of investments, build large-scale structures or hydro project, water resource waste is more serious, also is subject to the restriction of local water conservancy hydrologic condition, and adaptability is poor, and this method can not fundamentally solve the black smelly problem of water body.
Biological process is to utilize specific biological treatment to carry out biological degradation to the sewage be trapped, and the water after processing, as ecological water supplement, enters urban river.Therefore, biologic treating technique need to be synchronizeed and carry out as combinations such as section dirts with other environment projects.At present, China's biological treatment water outlet all adopts primary standard, and the colourity of such water quality is all higher, presents brown, can not meet the requirement in urban look river.On the other hand, biological treatment is lower to the processing efficiency of environmental hormone class micropollutant at present, general processing efficiency is in 50% left and right, and in the biological treatment water outlet, Endocrine Disruptors concentration is still higher, can not meet the requirement of urban look river ecological security.
The aeration aerating technology is to be filled with air or oxygen with manual type in water body, improves Dissolved Oxygen in Water concentration, improves the vigor of aerobic bacteria in water body, the pollution substance in river water is degraded gradually, thereby improve water quality.But, because oxygen proportion in air only has 21%, its saturated concentration in water body also only has the 8mg/L left and right, the dissolved oxygen that enters water body by air aeration can be consumed very soon, so the air aeration effect time length is short, usually needs to arrange a lot of aerators, investment and running cost are high.
Comparatively speaking, adopt the pure oxygen aeration technology, its effect is more effective than air aeration.Pure oxygen aeration can suppress to produce the anaerobic bacterium of black sordes matter, the H in the oxidation water body faster
2S, dimethyl sulfide and FeS etc., eliminate the black smelly phenomenon of water body effectively.Concrete pure oxygen aeration mode is divided into fixed aeration station and two kinds of forms of portable aeration boat.For example, Germany in the Emscher river, Teltow river, Fulda river, Spain is in the Secura river, the U.S. has set up respectively fixed pure oxygen aeration station in the Homewood estuary improvement, by the tubular type diffusion system, river course is carried out to aeration aerating; Germany in Saar river, Britain in the Thames river mouth, Australia all adopted the pure oxygen aeration ship in the Swan river is administered.
But pure oxygen aeration is very limited for the removal effect of the Endocrine Disruptors of trace in water body.At present, research both at home and abroad concentrates on the regularity of distribution and the ecological risk of investigation and analysis Endocrine Disruptors in river, but also there is no direct control techniques.This invention adopts ozonize pure oxygen mixed gas, can realize the removal to micro-Endocrine Disruptors in river simultaneously.
Summary of the invention
In view of there is above-mentioned defect in existing black and odorous water recovery technique, the purpose of this invention is to provide a kind of remove Endocrine Disruptors and black smelly method and system in water body.
The present invention is by the quick release of ozonize pure oxygen mixed gas, kill rapidly at short notice the harmful germ in water body, the oxidation coloring matter, degraded environmental hormone class micropollutant, and increase considerably the dissolved oxygen concentration in water body, thereby make water body be transformed into high-quality landscape water within the shorter time.Specifically comprise, utilize the strong oxidizing property of ozone to remove a large amount of aerobic substances in water, reduce the oxygen consumption rate of water body, make more than dissolved oxygen in water body maintains 2mg/L within the longer time, improve redox potential, thereby the anaerobion in the inhibition water body, interrupt " black smelly " production process, routinely eliminates " black smelly " of water body; By improving the dissolved oxygen concentration of water body, can also in-situ passivation bed mud in river top layer, suppress in bed mud pollutent to the release of river water, and then effectively alleviate the secondary pollution that bed mud causes river; Significantly improve river water from net capacity, improve the ability that river water opposing pollution load impacts; Remove the Endocrine Disruptors (EDCs) of trace in water, effectively reduce the ecological risk of water body.The concrete technical scheme of the present invention is as follows:
A kind of Endocrine Disruptors and black smelly method removed in water body comprises the following steps:
Pure oxygen is forced into to 0.05～0.2MPa, passes into ozonizer, the ozonize pure oxygen that to make the ozone volumn concentration be 4%～15%;
Some swivel nozzles or micropore titanium plate aerator are set in staying water, by described some swivel nozzles or micropore titanium plate aerator, the ozonize pure oxygen are fully mixed with staying water.Make dissolved oxygen concentration in staying water significantly increase, eliminate black smelly phenomenon, eliminate colourity, kill harmful germ, degraded Endocrine Disruptors, the landscape water body of formation high level.
A kind of Endocrine Disruptors and black smelly system removed in water body comprises:
The ozonize pure oxygen that ozonize pure oxygen preparation facilities is 0.05～0.2MPa for output pressure, described ozonize pure oxygen is the mixed gas of ozone and pure oxygen, wherein the volumn concentration of ozone is 4%～15%; With
Some swivel nozzles, be arranged in staying water, and its inlet pipe connects the output terminal of described ozonize pure oxygen preparation facilities, for the ozonize pure oxygen by the output of ozonize pure oxygen preparation facilities, with staying water, fully mixes.
Further can also comprise the dissolved oxygen water preparation apparatus, for to described swivel nozzle, carrying the high density dissolved oxygen water that dissolved oxygen concentration is 80～120mg/L, this dissolved oxygen water preparation apparatus contains
Propeller pump, for extracting water from staying water; With
Gas-water mixer, the water-in of this gas-water mixer connects the output terminal that the water outlet of described propeller pump, inlet mouth connect described press.
A kind of Endocrine Disruptors and black smelly ship removed in water body comprises:
Hull;
Ozonize pure oxygen preparation facilities, be installed in described hull, the ozonize pure oxygen that is 0.05～0.2MPa for output pressure, described ozonize pure oxygen is the mixed gas of ozone and pure oxygen, wherein the volumn concentration of ozone is 4%～15%, and this ozonize pure oxygen preparation facilities has
Oxygenerator, for exporting pure oxygen;
Press, be connected in described oxygenerator output terminal, for the pure oxygen by oxygenerator output, is forced into 0.05～0.2MPa; With
Ozonizer, be connected in described press output terminal;
The dissolved oxygen water preparation apparatus, be installed in described hull, and for exporting the high density dissolved oxygen water that dissolved oxygen concentration is 80～120mg/L, this dissolved oxygen water preparation apparatus has
Propeller pump, for extracting water from staying water; With
Gas-water mixer, the water-in of this gas-water mixer connects the output terminal that the water outlet of described propeller pump, inlet mouth connect described press;
Some swivel nozzles, be distributed in described underside of ship hull, and this swivel nozzle contains
Tubular shell, an end is connected with the output terminal of described dissolved oxygen water preparation apparatus;
Submersible machine, by disc be supported in described tubular shell and its output shaft parallel with the axis of described tubular shell;
Air cavity, be arranged at the output shaft institute of submersible machine at one end, and the sidewall of air cavity connects inlet pipe, and this inlet pipe connects the output terminal of described ozonize pure oxygen preparation facilities; With
Impeller, containing coaxial interior hub and the blade on outer hub and outer hub, impeller is arranged on by interior hub on the output shaft of submersible machine, and the passage between interior hub and outer hub is communicated with described air cavity, and outer hub front end is fixedly mounted with end cap, and some air passing holes are set on end cap.
The present invention takes the strong oxidizing property aeration mode, utilize the strong oxidizing property of ozonize pure oxygen mixed gas, when increasing substantially the water body oxyty in the short period of time, rapid " black smelly " material in oxidizing water also, remove the look of water body and smell class material and micro-Endocrine Disruptors, and greatly reduce the oxygen consumption rate of water body, more than the dissolved oxygen concentration of water body is maintained to 2mg/L in the longer time, improved the self-purification capacity of water body.Adopt the inventive method, the clearance of colourity can reach 98%, the clearance of turbidity can reach 91%, harmful germ kill efficiency reaches more than 98%, the time length of reoxygenation effect can reach 2 times of pure oxygen aeration effect under equal conditions, the clearance of the Endocrine Disruptors of trace reaches more than 86%, can effectively reduce the ecological risk of water body.In addition, system architecture compactness of the present invention, equipment is simplified, mobility strong, operation drive manner flexibility and reliability, can realize unmanned, has broad application prospects.
The accompanying drawing explanation
The system chart that Fig. 1 is the embodiment of the present invention 1;
The structural representation that Fig. 2 a, b are its swivel nozzle;
The system chart that Fig. 3 is the embodiment of the present invention 2;
The structural representation that Fig. 4 a, b are the embodiment of the present invention 3, wherein a figure is side-view, b figure is frontview.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment 1:
With reference to Fig. 1, in this removal water body, Endocrine Disruptors and black smelly system comprise: ozonize pure oxygen preparation facilities 1 and some swivel nozzles 2.The ozonize pure oxygen that ozonize pure oxygen preparation facilities 1 is 0.05～0.2MPa for output pressure, described ozonize pure oxygen is the mixed gas of ozone and pure oxygen, wherein the volumn concentration of ozone can be arranged on according to the situation of staying water between 4%～15%, such as being set to 5.5%, 7%, 11% etc., usually be set to 6～10%.Some swivel nozzles 2 are arranged in staying water 100, and its inlet pipe connects the output terminal of described ozonize pure oxygen preparation facilities 1, for the ozonize pure oxygen by 1 output of ozonize pure oxygen preparation facilities, with staying water, fully mix.
Wherein, ozonize pure oxygen preparation facilities 1 is containing oxygenerator 11, press 12 and ozonizer 13, and press 12 is connected in described oxygenerator 11 output terminals, for the pure oxygen by oxygenerator 11 outputs, is forced into 0.05～0.2MPa; Ozonizer 13 is connected in described press 12 output terminals, and a part of pure oxygen of input is made to ozone.
The structural representation that Fig. 2 a, b are swivel nozzle 2, wherein a figure is the internal structure schematic diagram, b figure be from impeller at one end see the structural representation of swivel nozzle.With reference to Fig. 2 a, b, swivel nozzle 2 is containing tubular shell 21, submersible machine 22, air cavity 23, inlet pipe 24 and impeller 25.Submersible machine 22 by disc 21 ', be supported in described tubular shell 21 and its output shaft 221 parallel with the axis of tubular shell 21; At one end, the sidewall of air cavity 23 connects inlet pipe 24 to 221 of the output shafts that air cavity 23 is arranged at submersible machine 22; Impeller 25 is containing coaxial interior hub 251 and the blade 253 on outer hub 252 and outer hub, impeller 25 is arranged on the output shaft 221 of submersible machine 22 by interior hub 251, passage between interior hub 251 and outer hub 252 is communicated with described air cavity 23, outer hub 252 front ends are fixedly mounted with end cap 26, and some air passing holes 261 are set on end cap 26.Tubular shell 21 fixedly is comprised of by binding round 27 two portions.
Some swivel nozzles 2 can be arranged in the riverbed of staying water 100, preferably are evenly arranged.Distance between adjacent swivel nozzle 2 can be 1.0～3.0m, and swivel nozzle 2 is driven by the motor of self, and the rotating speed of its impeller is 2000～6000 rev/mins, to the promotion pressure of water, is 0.1～0.4MPa.Described ozonize pure oxygen preparation facilities 1 can be arranged on to the bank of staying water 100, described some swivel nozzles 2 are connected with the output terminal of described ozonize pure oxygen preparation facilities 1 with by-pass valve control by pipeline.
Some swivel nozzles 2 also can be installed on underside of ship hull, and described ozonize pure oxygen preparation facilities 1 is arranged in described hull, described swivel nozzle 2 is connected with the output terminal of described ozonize pure oxygen preparation facilities 1 with by-pass valve control by pipeline, make the portable system of a boat-carrying, thereby can be repaired different water bodys with a system timesharing, be reduced operation and construction cost.
During work, oxygenerator 11 separates and prepares pure oxygen from air, then by press 12, makes the pressure of exporting oxygen reach 0.05～0.2MPa, and the pure oxygen after pressurization is sent into to ozonizer 13, makes the ozonize pure oxygen.On the other hand, impeller 25 high speed rotating of swivel nozzle 2 constantly will also promote forward to form strong current in bilge suction pipe shape housing 21, the ozonize pure oxygen is sent into the inlet pipe 24 of each swivel nozzle 2 by pipeline, pass through successively air cavity 23, passage between interior hub 251 and outer hub 252, after air passing hole 261 on end cap 26, enter the current that impeller 25 rotates to form, with the current collision, fully mix, the dissolved oxygen concentration of water body was significantly improved in moment, and ozone disappears after completing rapidly reaction, look is smelt with organic pollutant effectively to be removed, reduced the oxygen consumption rate of water body, self-purification capacity and the ecological security of water body have been improved.Simultaneously, when the ozonize pure oxygen passes through the air passing hole 261 on end cap 26, due to end cap 26 high speed rotating, ozonize pure oxygen and hole wall collision, cutting form a large amount of small bubbles, can further improve dissolved oxygen efficiency.
Measuring apparatus can also be set, to control the blending ratio of ozonize pure oxygen and water.
Embodiment 2:
With reference to Fig. 3, embodiment 2 has further increased dissolved oxygen water preparation apparatus 3 on the basis of embodiment 1, this dissolved oxygen water preparation apparatus 3 is containing propeller pump 31 and gas-water mixer 32, propeller pump 31 is for from staying water, extracting water, and water outlet, the inlet mouth that the water-in of gas-water mixer 32 connects described propeller pump 31 connects the output terminal of described press 12.Gas-water mixer 32 is the pure oxygen after pressurization and the current short mix that extracts from staying water of propeller pump 31, and the high density dissolved oxygen water that to make dissolved oxygen concentration be 80～120mg/L, send into by pipeline in the tubular body 21 of each swivel nozzle 2.That is to say, in embodiment 1, sucking in swivel nozzle 2 tubular bodies 21 is pending sewage, and suck in embodiment 2, in swivel nozzle 2 tubular bodies 21, is high density dissolved oxygen water.The method of embodiment 2 is applicable to pollute the water body of especially severe, has higher processing efficiency.
Wherein, gas-water mixer 32 can adopt the gas-water mixer of following structure: comprise the gas-water mixer housing and be arranged on the honeycomb filler in the gas-water mixer housing, the internal diameter of gas-water mixer housing is that 10～30cm, length are 20～100cm, this gas-water mixer can mix the current of input and pure oxygen in high pressure in real time, the high density dissolved oxygen water that the formation dissolved oxygen concentration is 80～120mg/L.
Embodiment 3:
Ozonize pure oxygen preparation facilities 1 is installed in described hull 4, the ozonize pure oxygen that is 0.05～0.2MPa for output pressure, and described ozonize pure oxygen is the mixed gas of ozone and pure oxygen, wherein the volumn concentration of ozone is 4%～15%.This ozonize pure oxygen preparation facilities 1 has oxygenerator 11, press 12 and ozonizer 13.Press 12 is connected in described oxygenerator 11 output terminals, for the pure oxygen by oxygenerator output, is forced into 0.05～0.2MPa, and ozonizer 13 is connected in described press 12 output terminals.
Dissolved oxygen water preparation apparatus 3 is installed in described hull 4, and for exporting the high density dissolved oxygen water that dissolved oxygen concentration is 80～120mg/L, this dissolved oxygen water preparation apparatus has propeller pump 31 and gas-water mixer 32.Propeller pump 31 is for extracting water from staying water.Water outlet, the inlet mouth that the water-in of gas-water mixer 32 connects described propeller pump 31 connects the output terminal of described press 12.
Some swivel nozzles 2 are distributed in described hull 4 downsides, with reference to Fig. 2 a, b, swivel nozzle 2 is containing tubular shell 21, submersible machine 22, air cavity 23, inlet pipe 24 and impeller 25, and tubular shell 21 1 ends are connected with the output terminal of described dissolved oxygen water preparation apparatus 1 by water pipe 5; Submersible machine 22 by disc 21 ', be supported in described tubular shell 21 and its output shaft 221 parallel with the axis of tubular shell 21; At one end, the sidewall of air cavity 23 connects inlet pipe 24 to 221 of the output shafts that air cavity 23 is arranged at submersible machine 22, and this inlet pipe 24 connects the output terminal of described ozonize pure oxygen preparation facilities 1 by tracheae 6; Impeller 25 is containing coaxial interior hub 251 and the blade 253 on outer hub 252 and outer hub, impeller 25 is arranged on the output shaft 221 of submersible machine by interior hub 251, passage between interior hub 251 and outer hub 252 is communicated with described air cavity 23, outer hub 252 front ends are fixedly mounted with end cap 26, and some air passing holes 261 are set on end cap 26.
Some swivel nozzles 2 are horizontally disposed with, and are arranged in two rows, two rows' aeration opposite direction, and the distance between adjacent swivel nozzle 2 is 1.0～3.0m, the rotating speed of its impeller 25 is 2000～6000 rev/mins.Some swivel nozzles 2 also can be arranged in a row.
Gas-water mixer 32 comprises the gas-water mixer housing and is arranged on the honeycomb filler in the gas-water mixer housing, the internal diameter of gas-water mixer housing is that 10～30cm, length are 20～100cm, this gas-water mixer can mix the current of input and pure oxygen in high pressure in real time, the high density dissolved oxygen water that the formation dissolved oxygen concentration is 80～120mg/L.
The present invention combines with the dynamic pressure that swivel nozzle 2 forms by the static pressure of ozonize pure oxygen mixed gas, when increasing substantially the water body oxyty in the short period of time, rapid " black smelly " material in oxidizing water also, removing the look of water body smells and some organic pollutants, and greatly reduce the oxygen consumption rate of water body, killed harmful germ, oxidative degradation environmental hormone class micropollutant, more than the dissolved oxygen concentration of water body is maintained to 2mg/L in the longer time, improved the self-purification capacity of water body.Application the present invention processes polluted river, the clearance of colourity can reach 98%, the clearance of turbidity can reach 91%, germ kill efficiency 98%, the Endocrine Disruptors clearance reaches more than 86%, the time length of reoxygenation effect can reach 2 times of pure oxygen aeration effect under equal conditions, can significantly improve view water quality of river and ecological security.Its aerating system compact construction, can be arranged on scene, river or water surface ship, aerating apparatus directly is placed on to riverbed, carry out the original position aeration, gas dissolving pressure reduction is up to 0.2MPa, and aeration efficiency reaches more than 90%, need to be in Ling Jian aeration tank, bank, drive manner is flexible, and automatic control unit can be set realize continuously or discontinuous operation.
In the present invention, also can adopt other aerator to replace swivel nozzle 2, for example, the micropore titanium plate aerator that employing is comprised of micropore titanium plate and support, distance during use between adjacent micropore titanium plate aerator can be set to 0.1～0.3m, aeration pressure 0.2MPa, submersion depth 2m.
Adopt the inventive method and system can reach the effect of four aspects: 1. kill harmful germ reaches sterilisation effect; 2. the organism of degraded " color development ", eliminate water body chroma, and water transparency significantly promotes; 3. in degradation water the hazardous and noxious substances of trace as Endocrine Disruptors (be called for short EDCs); 4. significantly improve the dissolved oxygen of water body, be conducive to the reparation of Ecology.Below by concrete description of test:
Experiment 1: one of black and odorous river water body, 21 ℃ of water temperatures, pH value 6.94, dissolved oxygen concentration 0-0.07mg/L, COD concentration 88-136mg/L, ammonia nitrogen concentration 18-34mg/L, colourity 34-155 times, olfact 23-46 level.Adopt the system of embodiment 1 (wherein, the rotating speed of the impeller 25 of swivel nozzle 2 is 4000 turn/min, water spray pressure is 0.25MPa, distance between adjacent swivel nozzle 2 is 2.0m), through 5 minutes ozonize pure oxygen (wherein, the volumn concentration of ozone is 5%) aerations, dissolved oxygen concentration rose to rapidly 8mg/L, colourity is reduced to below 20 times, and olfact is reduced to below 10; Through 30 minutes, below chroma stability to 20 times, olfact was stabilized in below 5 grades, reaches the requirement of national consumable water of sight and amusement for colourity and olfact, and the effect time length reaches 48 hours.Typical odor compounds soil smelly element (Geosmin) and dimethyl isocamphol (MIB) are all effectively removed, and the smelly plain clearance of soil has reached 100%.And COD and ammonia nitrogen obtain removal gradually in various degree, the highest removal efficiency reaches 50%.
Experiment 2: two of black and odorous river water body, 19 ℃ of water temperatures, pH value 7.4, dissolved oxygen concentration 0-0.7mg/L, COD concentration 74-84mg/L, ammonia nitrogen concentration 14-19mg/L, colourity 15-85 is doubly, olfact 21-48 level, Endocrine Disruptors be take dihydroxyphenyl propane as main, and concentration is up to 700-1000ng/L.Adopt the system of embodiment 1 (wherein, the rotating speed of the impeller 25 of swivel nozzle 2 is 4000 turn/min, water spray pressure is 0.25MPa, distance between adjacent swivel nozzle 2 is 2.0m), through 2 minutes ozonize pure oxygen (wherein, the volumn concentration of ozone is 5%) aerations, dissolved oxygen concentration rose to rapidly 8mg/L, colourity is reduced to below 25 times, and olfact is reduced to below 10; Through 30 minutes, below chroma stability to 20 times, olfact was stabilized in below 5 grades, reaches the requirement of national consumable water of sight and amusement for colourity and olfact, and water body aeration effect continues distance and reaches 10.0 kilometers far away.Typical odor compounds soil smelly element (Geosmin) and dimethyl isocamphol (MIB) are all effectively removed, and wherein native smelly plain clearance has reached 100%.Typical environment hormones pollutent dihydroxyphenyl propane clearance reaches 86%, has reduced the ecological risk of water body.COD and ammonia nitrogen obtain removal gradually in various degree, and the highest removal efficiency reaches 50%.
Test 3: black and odorous water, 24 ℃ of water temperatures, pH value 7.1, dissolved oxygen concentration 0.05mg/L, COD concentration 90.6mg/L, ammonia nitrogen concentration 6.9mg/L, 250 times of colourities, the smelly plain concentration 482ng/L of soil.Adopt the system of embodiment 1 (wherein, the rotating speed of the impeller 25 of swivel nozzle 2 is 4000 turn/min, water spray pressure is 0.25MPa, distance between adjacent swivel nozzle 2 is 2.0m), through 2 minutes ozonize pure oxygens (wherein, the volumn concentration of ozone is 5%) aeration, dissolved oxygen concentration rises to rapidly 10mg/L, then respectively at 0.5 hour, 2 hours, 3.5 hour and 5 hours, carry out the sampling analysis detection, the water sample colourimetric number is respectively 36, 19, 14 and 8 times, the smelly plain concentration of soil is respectively 271, 120, 25, 0ng/L, therefore native smelly element has obtained remarkable removal as the representative of typical stink substance, removing efficiency is 100%, the water sample olfact is reduced to below 5.
Test 4: river black and odorous water, 24 ℃ of water temperatures, pH value 7.12, dissolved oxygen concentration 0.34mg/L, COD concentration 148mg/L, ammonia nitrogen concentration 18.7mg/L, 31 times of colourities,, there are 8 kinds of Endocrine Disruptors in turbidity 47NTU in water, comprise n-nonyl phenol, tertiary octyl phenol, dihydroxyphenyl propane, estrone, estradiol, 17-estradiol, female alkynol, trihydroxy-oestrin etc., total concn is 600ng/L.Adopt the inventive method, some micropore titanium plate aerators are set in water body, aeration pressure is 0.2MPa, distance between adjacent aerator is 0.2m, through 30 minutes ozonize pure oxygens (wherein, the volumn concentration of ozone is 5%) aeration, dissolved oxygen concentration rises to rapidly 20.5mg/L, carried out sampling analysis testing environment hormone Pollutant levels after 30 minutes, being scaled and removing efficiency is 88%, so the ozonize pure oxygen aeration can effectively be removed micro-Endocrine Disruptors in water.
Claims (5)
1. remove Endocrine Disruptors and black smelly system in water body for one kind, it is characterized in that comprising:
The ozonize pure oxygen that ozonize pure oxygen preparation facilities (1) is 0.05～0.2MPa for output pressure, described ozonize pure oxygen is the mixed gas of ozone and pure oxygen, wherein the volumn concentration of ozone is 4%～15%; Described ozonize pure oxygen preparation facilities (1) contains: oxygenerator (11), be connected in described oxygenerator (11) output terminal, be forced into the press (12) of 0.05～0.2MPa for the pure oxygen by oxygenerator (11) output, and be connected in described press (12) output terminal, make the ozonizer (13) of ozone for a part of pure oxygen by input;
Dissolved oxygen water preparation apparatus (3), for to swivel nozzle (2), carrying the high density dissolved oxygen water that dissolved oxygen concentration is 80～120mg/L, this dissolved oxygen water preparation apparatus (3) is containing propeller pump (31) and gas-water mixer (32), propeller pump (31) is for extracting water from staying water, gas-water mixer (32) comprises the gas-water mixer housing and is arranged on the honeycomb filler in the gas-water mixer housing, the internal diameter of gas-water mixer housing is 10～30cm, length is 20～100cm, the water-in of gas-water mixer (32) connects the water outlet of described propeller pump (31), inlet mouth connects the output terminal of described press (12), the current short mix can be in real time the pure oxygen after pressurization and propeller pump (31) extracted from staying water, the high density dissolved oxygen water that to make dissolved oxygen concentration be 80～120mg/L, with
Some swivel nozzles (2), be arranged in staying water, its inlet pipe connects the output terminal of described ozonize pure oxygen preparation facilities (1), for the ozonize pure oxygen by ozonize pure oxygen preparation facilities (1) output, with staying water, fully mix, distance between adjacent swivel nozzle is 1.0～3.0m, the rotating speed of its impeller is 2000～6000 rev/mins, to the promotion pressure of water, is 0.1～0.4MPa;
Described swivel nozzle (2) contains
Tubular shell (21), end is communicated with the water outlet of gas-water mixer (32);
Submersible machine (22), by disc (21 ') be supported in described tubular shell (21) and its output shaft (221) parallel with the axis of described tubular shell (21);
Air cavity (23), be arranged at output shaft (221) institute of submersible machine (22) at one end, and the sidewall of air cavity (23) connects inlet pipe (24); With
Impeller (25), containing coaxial interior hub (251) and the blade (253) on outer hub (252) and outer hub, impeller (25) is arranged on the output shaft (221) of submersible machine by interior hub (251), passage between interior hub (251) and outer hub (252) is communicated with described air cavity (23), outer hub (252) front end is fixedly mounted with end cap (26), and some air passing holes (261) are set on end cap (26).
2. the system as claimed in claim 1, it is characterized in that: described some swivel nozzles (2) are evenly arranged in the riverbed of staying water, described ozonize pure oxygen preparation facilities (1) is arranged on the bank of staying water, and described some swivel nozzles (2) are connected with the output terminal of described ozonize pure oxygen preparation facilities (1) with by-pass valve control by pipeline.
3. the system as claimed in claim 1, it is characterized in that: described some swivel nozzles (2) are installed on underside of ship hull, described ozonize pure oxygen preparation facilities (1) is arranged in described hull, and described swivel nozzle (2) is connected with the output terminal of described ozonize pure oxygen preparation facilities (1) with by-pass valve control by pipeline.
4. remove Endocrine Disruptors and black smelly ship in water body for one kind, it is characterized in that comprising:
Hull (4);
Ozonize pure oxygen preparation facilities (1), be installed in described hull (4), the ozonize pure oxygen that is 0.05～0.2MPa for output pressure, described ozonize pure oxygen is the mixed gas of ozone and pure oxygen, wherein the volumn concentration of ozone is 4%～15%, and this ozonize pure oxygen preparation facilities has
Oxygenerator (11), for exporting pure oxygen;
Press (12), be connected in described oxygenerator (11) output terminal, for the pure oxygen by oxygenerator output, is forced into 0.05～0.2MPa; With
Ozonizer (13), be connected in described press (12) output terminal;
Dissolved oxygen water preparation apparatus (3), be installed in described hull (4), and for exporting the high density dissolved oxygen water that dissolved oxygen concentration is 80～120mg/L, this dissolved oxygen water preparation apparatus has
Propeller pump (31), for extracting water from staying water; With
Gas-water mixer (32), this gas-water mixer (32) comprises the gas-water mixer housing and is arranged on the honeycomb filler in the gas-water mixer housing, the internal diameter of gas-water mixer housing is that 10～30cm, length are 20～100cm, water outlet, the inlet mouth that the water-in of gas-water mixer connects described propeller pump (31) connects the output terminal of described press (12), the current short mix can be in real time the pure oxygen after pressurization and propeller pump (31) extracted from staying water, the high density dissolved oxygen water that to make dissolved oxygen concentration be 80～120mg/L;
Some swivel nozzles (2), be distributed in described hull (4) downside, and this swivel nozzle (2) contains
Tubular shell (21), an end is connected with the output terminal of described dissolved oxygen water preparation apparatus (3);
Submersible machine (22), by disc (21 ') be supported in described tubular shell (21) and its output shaft (221) parallel with the axis of tubular shell (21);
Air cavity (23), be arranged at output shaft (221) institute of submersible machine (22) at one end, the sidewall of air cavity (23) connects inlet pipe (24), and this inlet pipe (24) connects the output terminal of described ozonize pure oxygen preparation facilities (1); With
Impeller (25), containing coaxial interior hub (251) and the blade (253) on outer hub (252) and outer hub, impeller (25) is arranged on the output shaft (221) of submersible machine by interior hub (251), passage between interior hub (251) and outer hub (252) is communicated with described air cavity (23), outer hub (252) front end is fixedly mounted with end cap (26), and some air passing holes (261) are set on end cap (26).
5. ship as claimed in claim 4, it is characterized in that: described some swivel nozzles (2) are horizontally disposed with, be arranged in a row or be arranged in two rows of aeration opposite direction, the distance between adjacent swivel nozzle is 1.0～3.0m, and the rotating speed of its impeller is 2000～6000 rev/mins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102218169A CN102311165B (en) | 2010-07-07 | 2010-07-07 | Method and system for removing environmental hormone type pollutants and black and odorous matter in water bodies |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102218169A CN102311165B (en) | 2010-07-07 | 2010-07-07 | Method and system for removing environmental hormone type pollutants and black and odorous matter in water bodies |
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| CN102311165A CN102311165A (en) | 2012-01-11 |
| CN102311165B true CN102311165B (en) | 2013-12-04 |
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| CN2010102218169A Expired - Fee Related CN102311165B (en) | 2010-07-07 | 2010-07-07 | Method and system for removing environmental hormone type pollutants and black and odorous matter in water bodies |
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| CN106745711A (en) * | 2017-03-16 | 2017-05-31 | 浙江永立环保股份有限公司 | Microbubble occurs and disperser |
| CN106995251B (en) * | 2017-05-02 | 2020-05-22 | 苏州大学 | Method for removing estrogen pollutants in water body |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597573A (en) * | 2004-08-25 | 2005-03-23 | 宁波德安城市生态技术集团有限公司 | Submersible pushing flow aeration machine |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597573A (en) * | 2004-08-25 | 2005-03-23 | 宁波德安城市生态技术集团有限公司 | Submersible pushing flow aeration machine |
Non-Patent Citations (2)
| Title |
|---|
| "黑臭水体臭氧化纯氧曝气处理";高静思等;《建设科技》;20081231(第21期);第38-39页 * |
| 高静思等."黑臭水体臭氧化纯氧曝气处理".《建设科技》.2008,(第21期),第38-39页. |
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| CN102311165A (en) | 2012-01-11 |
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