CN1231418C - Air-float water cleaning method and device - Google Patents
Air-float water cleaning method and device Download PDFInfo
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- CN1231418C CN1231418C CN 200310113623 CN200310113623A CN1231418C CN 1231418 C CN1231418 C CN 1231418C CN 200310113623 CN200310113623 CN 200310113623 CN 200310113623 A CN200310113623 A CN 200310113623A CN 1231418 C CN1231418 C CN 1231418C
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Abstract
The present invention relates to a moveable air flotation water purifying method and a device thereof for integrally purifying polluted water through a flocculation, air flotation and solid-liquid separation technology. The flocculation, air flotation and solid-liquid separation technology is mainly used for purifying the polluted water. A water flow passage is encircled in the water, and the water flows into from one end of the passage. A flocculation medicament is added into the entrance inlet end of the passage and is thoroughly mixed with the water to react to generate floccules. Micro bubbles are generated by a micro bubble generator in the passage, the floccules in the water are carried by the micro bubbles to float out of water surface to form floating slag, and finally, the floating slag is removed. The device of the present invention can be still or movably arranged in any position in the water, and a medicine feeding device, an air flotation device, a slag collecting device, a dehydrating device, etc. are arranged on (in) the same operating platform to operate. Therefore, the whole device has the advantages of movable operation and strong operability. The present invention can be used for removing algae for eutrophic water of rivers, lakes, water reservoirs, etc., and can be used for improving and processing the water quality of slightly polluted water and moderately polluted water.
Description
Technical field
The invention belongs to water-treatment technology field, relate to a kind of by integrated packaged type air-float process for purifying water and the device that polluted water body is carried out purifying treatment of flocculation, air supporting and solid-liquid separation technique.
Background technology
Air-float technology as a kind of efficiently, solid-liquid separation technique fast, be widely used in the processing of trade effluents such as feedwater, municipal effluent and burnt electricity, oil refining, printing and dyeing, papermaking at present.General application form is for to build in treatment plant between fixed air flotation pool, dosing, be equipped with administration apparatus, airfloat equipment and machinery and scrape slag equipment, therefore this kind system bulk is big, need independent the installation, not only usage space, field are very restricted, need firm foundations, and the variation range of water quality, the water yield is had relatively high expectations, still can't in big water body such as river, lake, reservoir, use.(application number is China patent CN1332124A: 01126449.7, name is called: Collecting flocculation, air supporting and membrane sepn are in ultra's treatment unit of one) this has been proposed a technical scheme, its constructional feature is to be extracted by pump to promote water dosing flocculation, behind mixing tank, enter the treating water case, water tank bottom has aerating apparatus, and the hydrophilic hollow fiber capillary film assembly is arranged on it; After the aeration air supporting, a part of pollution substance forms scum silica frost, is removed by the slag scraper of tank top, and another part sinks to water tank bottom, is discharged by shore pipe; Water is by micro-pore-film filtration, by the vacuum primingpump discharge of will purifying waste water.This equipment is compared with the fixture of water treatment plant, technology such as aeration, air supporting, filtration have been carried out effective combination, floor space is reduced, and it is flexible relatively to operate, but still has following deficiency: (1) is as a kind of water treating equipment, can not accomplish the requirement of " where water is contaminated; just where go to handle ",, remain equipment is placed on the bank in the face of big water body such as river, lake, one end water inlet one brings out the old pattern of water, and mobility is not strong; (2) adopt micro-pore-film filtration, film needs frequent back flushing or replacing, and processing cost is higher relatively.
Summary of the invention
The object of the present invention is to provide a kind of air-float process for purifying water and device, can in water, move or static operation, the purification of water quality of its strong operability, water body such as volume is little, cost is relatively low, be applicable to the river, lake and reservoir, and the scope of application is wider.
The object of the present invention is achieved like this, a kind of air-float process for purifying water, mainly be polluted water body to be carried out purifying treatment by flocculation, air supporting and solid-liquid separation technique are integrated, in water, cross water stream channel with spacer, water is flowed into from passage one end, add the flocculation medicament at the channel entrance end, and make flocculation medicament and the reaction of water thorough mixing to produce throw out, the microbubble that in passage, utilizes microbubble generator to produce, make throw out in the water carry to emerge and form scum silica frost, scum at last by microbubble.
Form coagulating district, air supporting generating area in regular turn along water (flow) direction in the described water stream channel.
Described water stream channel can static or mobile being arranged in the water; And this passage the degree of depth being set regulating in water.
Described water stream channel is crossed by spacer.
The water that enters this passage can be promoted by swim in the water type or submerged type current thruster, with have certain flow rate and flow and with flocculation medicament uniform mixing.
Described flocculation medicament can be according to raw water quality different and handle the water yield variation, determine best feed rate, throw in the coagulating district by the metering medicine machine.
Be provided with at least one in the described air supporting generating area and float on microbubble generator in the water, produce micro-bubble.
In the exit end of water stream channel, form solid-liquid displacement zone, make scum silica frost float on this zone so that remove.
Exit end external application spacer at water stream channel surrounds solid-liquid displacement zone, makes scum silica frost float on this zone so that remove.
Be provided with the receipts slag equipment that floats in the water in the described solid-liquid displacement zone, utilize this equipment that scum silica frost is collected.
Described solid-liquid displacement zone also is provided with and receives the dross dehydration equipment of slag equipment pipeline connection, utilizes this equipment that scum silica frost is carried out processed.
A kind of air-float purifier comprises that at least one is located at the water stream channel in the water, is provided with coagulating district, air supporting generating area in regular turn along water (flow) direction in the passage.
Described water stream channel can be static or mobile be arranged in the water and this passage the degree of depth being set can regulating in water.
Described water stream channel can be two or more.
But described two or more water stream channel level is set up in parallel.
Described water stream channel is surrounded by the spacer that plural number has buoyancy, is provided with transom between spacer.
Be provided with the type of swimming or submerged type current thruster in the ingress water of described passage, when installing flow relative, also can not establish the current thruster with current.
Described coagulating district is provided with the metering medicine machine.
Described coagulating district also is provided with and measures the medicament dissolver of medicine machine pipeline connection.
Be provided with at least one microbubble generator in the described air supporting generating area.
Described microbubble generator is a JQFW type microbubble generator.
Be provided with solid-liquid displacement zone in this channel outlet, perhaps outside channel outlet, also be provided with solid-liquid displacement zone.
Described solid-liquid displacement zone is provided with the receipts slag equipment that floats in the water.
Described solid-liquid displacement zone also is provided with and receives the dross dehydration equipment of slag equipment pipeline connection.
The advantage of process for purifying water of the present invention and device is: (1) is integrated with flocculation, air supporting and isolation technique, this device can all place water, and can be static or mobilely be arranged on any position in the water, equipment such as dosing, air supporting, receipts slag, dehydration place (interior) operation on the same service platform, therefore, whole device movable operation in water, strong operability, it can remove algae to eutrophication waters such as river, lake and reservoirs, and micropollutant water and intermediate pollution water quality are improved and improvement; (2) whole device does not have the civil engineering structures, has saved civil engineering costs, and occupation area of equipment reduces greatly; (3) this device is compared with the water technology that other is used for big water body, and water pollutant is removed the efficient height, can remove turbid, decolouring, oil removing, reduction organic pollutant and nutrient concentrations such as nitrogen, phosphorus; (4) little, the convenient operation and management of simple, the compact construction of this device construction, volume, cost is low, result of use good.
Description of drawings
Fig. 1 is the integrated synoptic diagram of device of the present invention.
Fig. 2 is of the present invention one concrete apparatus structure orthographic plan.
Fig. 3 is set up in parallel perspective view for plural water stream channel level of the present invention.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of air-float process for purifying water, mainly be polluted water body to be carried out purifying treatment by flocculation, air supporting and solid-liquid separation technique, in water, cross water stream channel 1 with spacer, make water flow into (direction of arrow the figure) from passage 1 one ends, add the flocculation medicament at passage 1 entrance end, and make flocculation medicament and the reaction of water thorough mixing to produce throw out, in passage 1, utilize microbubble generator 2 to produce microbubble, make throw out in the water carry to emerge and form scum silica frost, scum at last by microbubble.
This passage 1 can be static or mobilely be arranged on any position in the water among the present invention; And water stream channel 1 the degree of depth being set regulating in water.
As shown in Figure 1, the device of realizing this process for purifying water comprises that at least one is located at the water stream channel 1 in the water, and what described water stream channel 1 can be static or mobile is arranged in the water.Be provided with coagulating district A, air supporting generating area B in regular turn along water (flow) direction in the passage 1.
Be provided with solid-liquid displacement zone in passage after the air supporting generating area 1 exit end in the present embodiment, so that scum.As another embodiment of the invention, also can be provided with solid-liquid displacement zone C in this passage 1 exit end periphery.
The unusual effect of process for purifying water of the present invention and device is: (1) is integrated with flocculation, air supporting and solid-liquid separation technique, this device can all place water, and can be static or mobilely be arranged on any position in the water, equipment such as dosing, air supporting, receipts slag, dehydration place (interior) operation on the same service platform, therefore, whole device movable operation in water, strong operability, it can remove algae to eutrophication waters such as river, lake and reservoirs, and micropollutant water and intermediate pollution water quality are improved and improvement; (2) whole device does not have the civil engineering structures, has saved civil engineering costs, and occupation area of equipment reduces greatly; (3) this device is compared with the water technology that other is used for big water body, and water pollutant is removed the efficient height, can remove turbid, decolouring, oil removing, reduction organic pollutant and nutrient concentrations such as nitrogen, phosphorus; (4) little, the convenient operation and management of simple, the compact construction of this device construction, volume, cost is low, result of use good.
Further in the present embodiment, described coagulating district A is provided with current thruster 5, metering medicine machine 3; This metering medicine machine 3 and medicament dissolver 4 pipeline connections so that optimal coagulant dose is determined in the variation of different according to raw water quality from the processing water yield, add medicament.
The ingress of described passage 1 is provided with current thruster 5, so that the polluted water of admission passage 1 has certain flow rate and flow and can mix with the flocculation medicament.Power in the time of can also carrying out mobile operating as this device.
As shown in Figure 1, in the present embodiment, be provided with at least one microbubble generator 2 in the described air supporting generating area B,, make throw out in the water attached on the microbubble and carrying throw out by microbubble and emerge and form scum silica frost to produce a large amount of micro-bubbles; Microbubble generator 2 described in the present embodiment is a JQFW type microbubble generator.
Described solid-liquid displacement zone C is provided with the slag equipment 6 of receiving, and utilizes and receives slag equipment 6 with the scum silica frost removal of bubbling through the water column; The common submersible pump of receipts slag equipment 6 usefulness in the present embodiment is inverted and is converted.
Described solid-liquid displacement zone C is provided with and receives the dross dehydration equipment 16 of slag equipment pipeline connection.Dross dehydration equipment 16 in the present embodiment is centrifugal, rotating cylinder dehydration equipment or filter bag.
Shown in Fig. 1,3, described water stream channel 1 usefulness spacer 7 encloses and forms, and described spacer 7 can be independently dividing plate, and it can have certain buoyancy.
As another embodiment of the present invention, described water stream channel 1 also can be arranged on the bank, surrounds water stream channel 1 with the bank as a side spacer of passage, and it can be located at edge, waters fixed point and carry out work.
Present embodiment is identical with ultimate principle and the structure of embodiment 1, and its difference is that as shown in Figure 3 described water stream channel 1 can be two or more; But these two or more water stream channel levels are set up in parallel (as Fig. 3).When the broad of needs water purifying waters, can take aforesaid way to carry out clean water treatment, it can improve cleaning water.
Simultaneously, also can be according to the water pollution situation of different depths, take mode that water stream channel 1 is fluctuated, the water body of certain depth is carried out clean water treatment.
Further, the described purifier that is made of two above water stream channels can be provided with a current thruster 5 at the inlet end of each passage, also a shared current thruster 5 can be set before several passages.
Described solid-liquid displacement zone C can be provided with one in each passage, also can enclose a solid-liquid displacement zone C altogether outside the exit end of several passages.
The effect of present embodiment is identical with embodiment 1, does not repeat them here.
Present embodiment is identical with ultimate principle and the structure of embodiment 1, and its difference is that as shown in Figure 2 this purifier is to have carried out concrete enforcement with the form of pontoon 10, and the structure of pontoon 10 as shown in Figure 2.Pontoon 10 is made up of with midfeather 15 buoyancy aid 13, the outer partition wall 14 of twice in the middle of the buoyancy aid behind two the preceding buoyancy aids 11, two 12, one, is provided with transom and makes it become as a whole between buoyancy aid with between partition wall, and can strengthen its structural strength.The 10 no ends of pontoon, be interconnected with water body on every side, and draft is a 0.8-1.2 rice, except that receiving slag equipment, armamentarium and operation all on pontoon 10 (interior) finish.Two water stream channels of pontoon 10 anterior formation are merged into a water stream channel after middle buoyancy aid 13; Install respectively in two water stream channels metering medicine machine 3, medicament dissolver 4 are set respectively on 5, two preceding buoyancy aids 11 of current thruster, middle buoyancy aid 13 both sides are installed microbubble generator 2 respectively.Zone from the metering dosing to microbubble generator 2 is coagulating district A, 10 tail ends are air supporting generating area B from microbubble generator 2 to pontoon, lay plank (among the figure draw) on pontoon 10 middle part surfaces and the middle buoyancy aid 13, place generator above and provide service platform for operator.Pontoon 10 two sides of tail cross a waters with buoyancy aid partition wall 70 and are used for receiving slag for solid-liquid displacement zone C, receive slag equipment 6 and place in the solid-liquid displacement zone C.
As shown in Figure 2, during purifier work, under the rotary action of current thruster 5 impellers, pending water is pushed in the water stream channel that enters A district front end, open metering medicine machine 3, according to the variation of the water quality and the water yield, determine the best dispensing position and the best dosage of flocculation medicament and coagulant aids, through the violent disturbance of impeller, medicament and water mix, and gradually wide along with water stream channel, flow velocity reduces, and pollution substance forms flco and increase gradually with the medicament reaction; After the dirt-carrying flco enters the B district, fully contact, stick to the microbubble surface, under buoyancy,, form scum silica frost on surface, pontoon 10 afterbody waters by rising to the water surface under water gradually with a large amount of micro bubbles that microbubble generator 2 is emitted.Scum silica frost is cumulative in the C district, when reaching certain thickness, collects by receiving slag equipment 6, and the dross dehydration equipment 16 that is transported to pontoon 10 afterbodys by pipeline dewaters.
It is the 5-1000 cubic meter that this purifier is per hour handled the water yield.
For checking the operating performance of this purifier, be selected in western Tu Chenggou, enclosure goes out the sealing water body of 1.15 meters of one 500 cubic metres, the depth of water as the test water body.Move after 1 hour, water transparency is brought up to more than the 115cm by 34cm, and the water body after the processing is so clear that you can see the bottom.Through water sample analysis: SS, BOD
5, CODcr, TP, DP, colourity, chlorophyll a clearance all reach more than 70%, N item index is also had in various degree reduction.Scum silica frost after the dehydration, measuring its main component is full nitrogen 1.47%, full phosphorus 0.316%, full potassium 0.59%, organic substance 29.3%, water 85.5%.As seen, nitrogen in the scum silica frost, phosphorus content are higher, can make organic fertilizer.
Claims (15)
1. air-float process for purifying water, mainly be polluted water body to be carried out purifying treatment by flocculation, air supporting and solid-liquid separation technique, it is characterized in that: in water, cross water stream channel, water flows into from passage one end, add the flocculation medicament at the channel entrance end, flocculation medicament and the reaction of water thorough mixing produce throw out, utilize microbubble generator to produce microbubble in passage, throw out in the water is carried to emerge by microbubble and forms scum silica frost, scums at last.
2. air-float process for purifying water as claimed in claim 1 is characterized in that: form coagulating district, air supporting generating area in regular turn along water (flow) direction in the described water stream channel.
3. air-float process for purifying water as claimed in claim 1 is characterized in that: described water stream channel is crossed by spacer, can static or mobile being arranged in the water, and the degree of depth is set can regulate.
4. air-float process for purifying water as claimed in claim 1 is characterized in that: the water of ingoing stream passage is promoted by the type of swimming or submerged type current thruster, with have certain flow rate and flow and with flocculation medicament uniform mixing.
5. air-float process for purifying water as claimed in claim 2 is characterized in that: described flocculation medicament can variation different according to raw water quality and the processing water yield be determined best feed rate, is thrown in the coagulating district by the metering medicine machine.
6. air-float process for purifying water as claimed in claim 2 is characterized in that: be provided with at least one microbubble generator in the air supporting generating area.
7. air-float process for purifying water as claimed in claim 1 or 2, it is characterized in that: in the exit end of water stream channel, form solid-liquid displacement zone, perhaps outside the exit end of water stream channel, surround solid-liquid displacement zone, be provided with in the solid-liquid displacement zone receipts slag equipment that floats in the water and with the dross dehydration equipment of receiving slag equipment pipeline connection, scum silica frost is collected and processed.
8. air-float purifier is characterized in that: comprise that at least one is located at the water stream channel in the water, is provided with coagulating district, air supporting generating area in regular turn along water (flow) direction in the passage.
9. air-float purifier as claimed in claim 8 is characterized in that: what described water stream channel can be static or mobile is arranged in the water, and the degree of depth is set can regulate.
10. air-float purifier as claimed in claim 8 or 9, it is characterized in that: described water stream channel is two or more, and the water stream channel level is set up in parallel.
11. air-float purifier as claimed in claim 8 or 9, it is characterized in that: described water stream channel is surrounded by the spacer that plural number has buoyancy, is provided with transom between spacer.
12. air-float purifier as claimed in claim 8 or 9, it is characterized in that: the ingress of described water stream channel is provided with the type of swimming or submerged type current thruster in water.
13. air-float purifier as claimed in claim 8 is characterized in that: described coagulating district be provided with the metering medicine machine and with the medicament dissolver of metering medicine machine pipeline connection.
14. air-float purifier as claimed in claim 8 is characterized in that: be provided with at least one microbubble generator in the described air supporting generating area.
15. air-float purifier as claimed in claim 8, it is characterized in that: in passage, be provided with solid-liquid displacement zone after the air supporting generating area, perhaps be provided with solid-liquid displacement zone in this channel outlet periphery, be provided with in the solid-liquid displacement zone receipts slag equipment that floats in the water and with the dross dehydration equipment of receiving slag equipment pipeline connection, scum silica frost is collected and processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310113623 CN1231418C (en) | 2003-11-13 | 2003-11-13 | Air-float water cleaning method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310113623 CN1231418C (en) | 2003-11-13 | 2003-11-13 | Air-float water cleaning method and device |
Publications (2)
| Publication Number | Publication Date |
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| CN1544341A CN1544341A (en) | 2004-11-10 |
| CN1231418C true CN1231418C (en) | 2005-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200310113623 Expired - Fee Related CN1231418C (en) | 2003-11-13 | 2003-11-13 | Air-float water cleaning method and device |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368312C (en) * | 2005-11-10 | 2008-02-13 | 郑永旭 | Process for enriching transferring algae in lanpscape water |
| CN103058431B (en) * | 2012-09-29 | 2014-04-09 | 清华大学 | Purification system for river water or landscape water |
| CN103043866B (en) * | 2013-01-09 | 2014-02-12 | 郝新浦 | Construction method of polluted water treatment system |
| CN103318983A (en) * | 2013-07-17 | 2013-09-25 | 叶建锋 | Micro-air-flotation algae removal device and method for small water body |
| CN103706170B (en) * | 2013-10-15 | 2015-06-10 | 中国水利水电科学研究院 | Wind driven current algae removal device |
| CN104891616A (en) * | 2015-05-28 | 2015-09-09 | 中国石油化工股份有限公司 | Oily wastewater purification method and system |
| CN106242108B (en) * | 2016-08-11 | 2019-03-15 | 南京工业大学 | A kind of the cyclone flotation processing system and method for the waste water containing algae |
| CN106116061A (en) * | 2016-08-30 | 2016-11-16 | 贵州绿纯环境开发有限公司 | Method and the structure of necessary precondition are provided for building river water body ecosystem |
| CN106673103B (en) * | 2016-12-23 | 2023-07-18 | 无锡工源环境科技股份有限公司 | Water air float |
| CN107117743A (en) * | 2017-07-07 | 2017-09-01 | 杭州银江环保科技有限公司 | Sewage quick purifying processing unit and its sewage water treatment method |
| CN107352658A (en) * | 2017-09-08 | 2017-11-17 | 广州太和水生态科技有限公司 | River water body original position air-flotation process system |
| CN110127794A (en) * | 2019-04-23 | 2019-08-16 | 浙江工业大学 | A method of it catching the quickly targeting in situ of algae micron bubble and eradicates cyanobacterial bloom |
| JP2022539053A (en) * | 2019-07-04 | 2022-09-07 | ダニエル トウネィア， | Systems and techniques for removing waste from liquids |
| CN113603262A (en) * | 2021-08-20 | 2021-11-05 | 东华大学 | Wastewater near-zero discharge process of gas field flow field synergistic osmosis membrane |
-
2003
- 2003-11-13 CN CN 200310113623 patent/CN1231418C/en not_active Expired - Fee Related
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