CN1297492C - Air floated water treating separators - Google Patents
Air floated water treating separators Download PDFInfo
- Publication number
- CN1297492C CN1297492C CNB2004100735004A CN200410073500A CN1297492C CN 1297492 C CN1297492 C CN 1297492C CN B2004100735004 A CNB2004100735004 A CN B2004100735004A CN 200410073500 A CN200410073500 A CN 200410073500A CN 1297492 C CN1297492 C CN 1297492C
- Authority
- CN
- China
- Prior art keywords
- air
- water
- ozone
- dissolved
- dissolved air
- 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.)
- Expired - Fee Related
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1431—Dissolved air flotation machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
- B03D1/028—Control and monitoring of flotation processes; computer models therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/1462—Discharge mechanisms for the froth
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
Abstract
The present invention discloses a separating device for treating air flotation water, which comprises a water inlet system, an air flotation separating system, a dissolved air water system, a treating water collecting system and a floating slag removing system, wherein the dissolved air water system is provided with an ozone dissolved air device. An ozone dissolved air pump (8) is arranged on a dissolved air water pipe (6) in the ozone dissolved air device, an ozone air inlet device (17) is connected with an ozone decompression buffer (22) through an ozone pipeline (18), and the ozone decompression buffer (22) is connected with a pressure sensor (23) and a decompression relief valve (24) to realize automatic decompression. Thereby, the pressure of air entering the dissolved air pump (8) is reduced. When the separating device is used for separating sewage water through air flotation, color, smell, flavor, bacteria, etc. in the water are removed. The separating device is suitable for the treatment of organic wastewater, and the advanced treatment and the recycle of sewage water.
Description
Technical field
The present invention relates to a kind of water treatment device, particularly a kind of air floated water treating separators.
Background technology
Solid-liquid separation technique is a requisite link in the water treatment, and air supporting then is the solid-liquid separation technique commonly used of removing lightweight pollutent in the water.Air supporting method commonly used is the pressurized dissolved air flotation method, treatment unit by air compressor, pressure air-dissolving jar, decompression releasing arrangement, air flotation pool, machinery scrape slag, residue extraction mechanism constitutes, complex structure, processing mode long flow path, energy consumption are big, construction cost and processing cost height.In addition, the air supporting processing unit is just finished solid-liquid separation usually, to organic pollutant in the water and look, smell, the removal of flavor, bacterium etc. must add preposition pre-processing device or rearmounted advanced treatment equipment.The applicant is in the utility model patent (ZL 99253940.4) of application on December 3rd, 1999 " efficient air-floating apparatus ", this patent can be finished solid-liquid separation, realize the total closed type automatic sludge discharge, but this patent, can not be removed in the water in organism and the reusing sewage look in the water, smell problems such as flavor and bacterium as molten gas source of the gas with air.
Summary of the invention
The objective of the invention is provides a kind of air floated water treating separators on the prior art basis, to the isolating while of sewage air-flotation, remove the middle look that anhydrates, smell, flavor, bacterium etc.
Imagination of the present invention is: replace air as molten gas source of the gas with ozone, utilize air dissolved pump to suck ozone, produce even ozone microbubble inner release of separator, realize contacting adhesion and, finally finishing dissolved air flotation of ozone bubbles and pollutent the oxidising process of pollutent.The combination of ozone oxidation and air-float technology, whole contact mixing and dissolved air flotation process are carried out in closed unit, the device top is provided with slag-drip opening, regularly carries out the deslagging operation by automatic control system, utilizes the timing lifting of water level to realize full-automatic enclosed deslagging.
For solving the aforesaid method technical problem, technical scheme of the present invention is such: comprise water inlet system, the dissolved air flotation system, the dissolved air water system, treating water gathering system and scum silica frost removal system, described dissolved air water system is provided with the ozone air-dissolving apparatus, the dissolved air water pipe (6) of described ozone air-dissolving apparatus is provided with ozone air dissolved pump (8), ozone diffuser (17) is connected with ozone pressure-reducing cushioning device (22) by ozone pipeline (18), ozone pressure-reducing cushioning device (22) is connected to pressure transmitter (23) and decompression relief valve (24) realizing automatic decompression, thereby reduces the gaseous tension that enters air dissolved pump (8).
One end of described ozone air dissolved pump (8) links to each other with dissolved air water pipe (6) by buffer tank (7).
Ozone air dissolved pump (8) links to each other by return line (21) with rising pipe (20), with the partially disposed water suction of rising pipe (20).
Described ozone diffuser (17) is an ozonizer.
The preceding hydraulic mixer (4) that is provided with of described water inlet system water inlet pipe (5).
The bottom of described dissolved air flotation system's air supporting separator (15) is provided with perforation header (13).
The bottom of described dissolved air flotation system's air supporting separator (15) is provided with umbrella mixing tank (11).
Described treating water gathering system and scum silica frost removal system are provided with magnetic valve (9), and magnetic valve (9) is realized the automatic control of switching by the time relay (10).
The present invention has following beneficial effect:
1. reasonable in design, compact construction, device volume is little.Ozone oxidation and air supporting process are organically combined, in an operating unit, realized breakdown of emulsion or flocculation, solid-liquid separation, remove look, smell, a plurality of processes such as flavor, sterilization.
2. the contact mixing is carried out in closed unit with dissolved air flotation, the device top is provided with that scum silica frost gathers and remover, regularly carry out the deslagging operation by automatic control system, utilize the timing lifting of water level to realize full-automatic enclosed deslagging, solved the open-type dissolved air flotation effectively owing to scum silica frost light weight, amount are big, blow the foam that caused by the atmosphere windage in the slag process and fly upward, surrounding environment secondary pollution pollution problem has reached efficient, energy-conservation, eco-friendly purpose.
3. produce even ozone microbubble by the air dissolved pump system, increased substantially pneumatically supported solid-liquid separation efficiency, effectively remove solvability organic pollutant and look, the material of smelling, distinguish the flavor of in the water simultaneously, and have the sterilization effect.
Description of drawings
Fig. 1 is a structure iron of the present invention.
Embodiment
As shown in Figure 1, the present invention mainly is made up of water inlet system, dissolved air flotation system, dissolved air water system, treating water gathering system and scum silica frost removal system.Wherein:
1, water inlet system: be made up of water absorption tube 3, water inlet pipe 5 before raw water box 1, intake pump 2, the pump, the present invention sets up hydraulic mixer 4 before water inlet pipe 5.
2, dissolved air flotation system (agent set): by profile is cylindrical dissolved air flotation device 15, and device is inner to be made up of zone of action 12, disengaging zone 14, and the present invention is provided with perforation header 13 and bottom umbrella mixing tank 11 in bottom of device.
3, dissolved air water system: this system is improvements of the present invention, and it is made up of ozonizer 17, ozone tail pipe 18, ozone pressure-reducing cushioning device 22, pressure transmitter 23, decompression relief valve 24, return line 21, ozone air dissolved pump 8, buffer tank 7 and dissolved air water pipe 6.
4, treating water system: be made up of perforation header 13, rising pipe 20, the present invention is provided with the magnetic valve 9 and the time relay 10.
5, scum silica frost system: back taper scum silica frost district 19, scum pipe 16 are formed, and the present invention is provided with the magnetic valve 9 and the time relay 10.
Former water extracts from raw water box 1 by intake pump 2, adds emulsion splitter or coagulating agent in the water absorption tube 3 before pump, and enter water inlet pipe 5 behind the thorough mixing in hydraulic mixer 4; Treating water is collected into rising pipe 20 by the perforation header 13 of dissolved air flotation device 15 bottoms, effluxes via magnetic valve 9; Magnetic valve 9 is realized the automatic control of switching by the time relay 10; The ozone that ozonizer 17 produces enters decompression in the ozone pressure-reducing cushioning device 22 by ozone pipeline 18, is mixed by 8 suctions of ozone air dissolved pump jointly with a part for the treatment of water (recirculation water) then and enters in the dissolved air water pipe 6 by buffer tank 7; Former water behind breakdown of emulsion or the coagulation is by water inlet pipe 5, dissolved air water enters dissolved air flotation device 15 by dissolved air water pipe 6, enter contact reacts district 12 behind umbrella mixing tank 11 place's thorough mixing of bottom, dissolved air water enters disengaging zone 14 after discharging pollutent contact reacts behind ozone microbubble and breakdown of emulsion or the coagulation.Pollutent is attached to the ozone microbubble and enters scum silica frost district 19, and treating water then effluxes by bottom perforated header 13; Scum layer in the scum silica frost district 14 is thickening gradually in time, and when reaching certain thickness, the time relay 10 is by default time action, magnetic valve 9 cuts out, dissolved air flotation device 15 median water level rise, and scum silica frost is squeezed in the back taper scum silica frost district 19 at top, effluxes via scum silica frost purger 16 at last; When discharging finished, the time relay 10 was by default time action, and magnetic valve 9 is opened again, enters the next work period.
Cause dissolved air flotation device 15 pressure fluctuating in inner in order to prevent current from effluxing, perforation header 13 is according to the non-homogeneous layout of water (flow) direction.
The adaptation procedure of ozone oxidation of the present invention and air-dissolving air-float is achieved in that
Molten tolerance of the present invention can be controlled inlet gas ozone concentration by the generating capacity of regulating ozonizer 17.Directly suck gas the ozone pipeline 18 and form air bag or cause in the follow-up dissolved air flotation device pressure surge etc. by negative pressure in the pump for fear of air dissolved pump 8 from having to press, the present invention is provided with ozone pressure-reducing cushioning device 22 behind ozone pipeline 18, under the effect of pressure transmitter 23, realize decompression automatically, thereby reduce the gaseous tension that enters air dissolved pump 8 by decompression relief valve 24.Dissolved air water is adjusted the dissolved air water pressure that enters the dissolved air flotation device by buffer tank 7, to avoid the pressure surge in the dissolved air flotation device 15.Dissolved air water is by dissolved air water pipe 6, former water behind breakdown of emulsion or the coagulation is realized thorough mixing by the umbrella mixing tank 11 that water inlet pipe 5 subtends enter dissolved air flotation device 15 bottoms, the ozone microbubble that discharges in the dissolved air water carries out the catalytic oxidation of pollutent in adhering contaminant, thereby realizes the best-fit of ozone oxidation and air-dissolving air-float.
Working process of the present invention is as follows:
1. water inlet dosing coagulant or emulsion splitter before intake pump 2 finished the coagulation or the breakdown of emulsion process of pollutent by hydraulic mixer 4;
2. treating water partial reflux and aspirated by air dissolved pump 8, the ozone gas that ozonizer 17 produces is reduced to normal pressure through the effect of ozone pressure-reducing cushioning device 22, in the suction function suction pump 8 by air dissolved pump 8 generations, carry out air water with recirculation water and be mixed into pressure air-dissolving water, undertaken entering dissolved air flotation device 15 after pressure is regulated by buffer tank 7 then;
3. former water behind coagulation or the breakdown of emulsion and ozone dissolved air water enter zone of action 12 behind dissolved air flotation device 15 bottom thorough mixing, the ozone microbubble that discharges in the dissolved air water and water pollutant contact wetting with carry out that ozone contacts and oxidizing reaction when adhesion waits materializing procedure;
4. 12 current that rise enter flotation separation zone 14 and finish solid-liquid separation from the air supporting zone of action, and pollutent is carried by microbubble and enters 19 tops, scum silica frost district, and treating water is collected from bottom perforated header 13 and effluxed;
When scum silica frost in scum layer, assemble reach certain thickness after, under the effect of the time relay 10, magnetic valve 9 cuts out, and stops treating water and effluxes, water level constantly rises in the device, scum silica frost is clamp-oned inverted upper taper scum silica frost district 19 and effluxes by the scum silica frost purger;
6. after scum silica frost was got rid of fully, under the effect of the time relay 10, magnetic valve 9 was opened again, and the beginning treating water effluxes, and separator 15 waters surface drop to ordinary water-level gradually.
Claims (8)
1, a kind of air floated water treating separators, comprise water inlet system, the dissolved air flotation system, the dissolved air water system, treating water gathering system and scum silica frost removal system, described dissolved air water system is provided with the ozone air-dissolving apparatus, it is characterized in that: the dissolved air water pipe (6) of described ozone air-dissolving apparatus is provided with ozone air dissolved pump (8), ozone diffuser (17) is connected with ozone pressure-reducing cushioning device (22) by ozone pipeline (18), ozone pressure-reducing cushioning device (22) is connected to pressure transmitter (23) and decompression relief valve (24) realizing automatic decompression, thereby reduces the gaseous tension that enters air dissolved pump (8).
2, air floated water treating separators according to claim 1 is characterized in that: an end of described ozone air dissolved pump (8) links to each other with dissolved air water pipe (6) by buffer tank (7).
3, air floated water treating separators according to claim 1 is characterized in that: ozone air dissolved pump (8) links to each other by return line (21) with rising pipe (20), with the partially disposed water suction of rising pipe (20).
4, air floated water treating separators according to claim 1 is characterized in that: described ozone diffuser (17) is an ozonizer.
5, according to each described air floated water treating separators among the claim 1-4, it is characterized in that: the preceding hydraulic mixer (4) that is provided with of described water inlet system water inlet pipe (5).
6, according to each described air floated water treating separators among the claim 1-4, it is characterized in that: the bottom of described dissolved air flotation system's air supporting separator (15) is provided with perforation header (13).
7, according to each described air floated water treating separators among the claim 1-4, it is characterized in that: the bottom of described dissolved air flotation system's air supporting separator (15) is provided with umbrella mixing tank (11).
8, according to each described air floated water treating separators among the claim 1-4, it is characterized in that: described treating water gathering system and scum silica frost removal system are provided with magnetic valve (9), and magnetic valve (9) is realized the automatic control of switching by the time relay (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100735004A CN1297492C (en) | 2004-12-27 | 2004-12-27 | Air floated water treating separators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100735004A CN1297492C (en) | 2004-12-27 | 2004-12-27 | Air floated water treating separators |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1644519A CN1644519A (en) | 2005-07-27 |
| CN1297492C true CN1297492C (en) | 2007-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100735004A Expired - Fee Related CN1297492C (en) | 2004-12-27 | 2004-12-27 | Air floated water treating separators |
Country Status (1)
| Country | Link |
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| CN (1) | CN1297492C (en) |
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| CN102249361B (en) * | 2011-05-13 | 2012-09-12 | 西安建筑科技大学 | Ozone gas supply pressure stabilizing device and air flotation reactor using same |
| CN103130355B (en) * | 2012-04-28 | 2015-01-14 | 苏州嘉净环保科技股份有限公司 | Integrated emergency drinking water treatment device |
| CN103130295A (en) * | 2012-04-28 | 2013-06-05 | 苏州嘉净环保科技股份有限公司 | Novel air floating device |
| CN103395919B (en) * | 2013-08-03 | 2015-04-01 | 大连交通大学 | Equipment for pretreatment of high-concentration perfume wastewater and method |
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| CN103641257B (en) * | 2013-12-05 | 2015-08-19 | 西安建筑科技大学 | Method and the device of ozone order of adding in microbubble ozone-coagulation-air-float technology can be changed |
| AU2014280927B2 (en) * | 2014-01-09 | 2016-01-28 | Aerofloat (Holdings) Pty Ltd | System and method for treating water or wastewater |
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| CN105772229A (en) * | 2014-05-15 | 2016-07-20 | 衢州市易凡设计有限公司 | Adjustable inflatable flotation column |
| CN105944843A (en) * | 2014-05-15 | 2016-09-21 | 衢州市易凡设计有限公司 | Adjustable pneumatic flotation method |
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| CN106277151B (en) * | 2016-10-17 | 2019-03-26 | 西安建筑科技大学 | A kind of multistage ozone air-float device of radial combination |
| CN106587447B (en) * | 2016-12-06 | 2020-01-07 | 西安建筑科技大学 | Electric induction coagulation ozone air flotation-catalytic oxidation multi-element coupling water treatment system and method |
| CN107324545A (en) * | 2017-08-18 | 2017-11-07 | 西安建筑科技大学 | A kind of method for preventing that scum silica frost is precipitated during ozone air-float |
| CN107381700B (en) * | 2017-08-22 | 2020-12-01 | 西安建筑科技大学 | Multi-stage ozone air flotation process deslagging device based on siphon principle |
| CN107381701B (en) * | 2017-08-22 | 2020-09-01 | 西安建筑科技大学 | Ozone air flotation device and method for supplying air by using constant-pressure microbubble generator |
| CN107540129A (en) * | 2017-10-15 | 2018-01-05 | 北京京通沃德科技有限公司 | A kind of micro-polluted water treatment special equipment |
| CN107601728B (en) * | 2017-11-14 | 2023-12-26 | 河南清波环境工程有限公司 | Air-floatation flocculation sewage treatment system with automatic exhaust and anti-tumbling functions |
| CN110902875A (en) * | 2019-11-19 | 2020-03-24 | 西安威尔电子有限责任公司 | Oil-gas field produced water treatment system and method based on ozone air floatation device |
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| CN1644519A (en) | 2005-07-27 |
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