CN102633383A - Deepwater circulating and enhanced coagulating sedimentation algae-removing water treatment system and method - Google Patents
Deepwater circulating and enhanced coagulating sedimentation algae-removing water treatment system and method Download PDFInfo
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- CN102633383A CN102633383A CN2012101095419A CN201210109541A CN102633383A CN 102633383 A CN102633383 A CN 102633383A CN 2012101095419 A CN2012101095419 A CN 2012101095419A CN 201210109541 A CN201210109541 A CN 201210109541A CN 102633383 A CN102633383 A CN 102633383A
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Abstract
The invention provides a deepwater circulating and enhanced coagulating sedimentation algae-removing water treatment system and a treatment method, belonging to the technical field of feed water treatment. The deepwater circulating and enhanced coagulating sedimentation algae-removing water treatment system comprises a water supply pump, a water treatment tank and a drug feeding device, wherein the water supply pump and the drug feeding device are respectively connected with the water treatment tank through a pipeline; the deepwater circulating and enhanced coagulating sedimentation algae-removing water treatment system is characterized by being provided with a deep water circulating well for stressing air bags in the algae crack; the circulating well is provided with an inlet and an outlet; the inlet of the circulating well is connected with the water supply pump; and the outlet of the circulating well is connected with the water treatment tank. The water supply pump injects algae-containing water into the circulating well and enters the water treatment tank; the air bags in algae cells crack under high-pressure effect of the deep water of the circulating well so that the algae lose buoyancy to be easy to precipitate. A coagulant, the algae and other impurity grains collide in a reaction tank to be combined into larger floc grains so as to precipitate and be removed in a sedimentation basin. With the adoption of the method, the air bags of the algae are enabled to crack, the sedimentation speed is high and the removing effect is good; the algae cells are not damaged and water supply is safe; and the drug consumption and the energy consumption are low and the operation cost is low.
Description
Technical field
The present invention relates to a kind of water treatment system and method to algae-containing water; Relate in particular to a kind of deep water circulation enhanced coagulation deposition and remove algae water treatment system and method; Be that algae-containing water is carried out coagulating sedimentation again after the circulation of ballow; Remove water treatment device and the method for algae in the water, belong to, be applicable to that the waterworks removes algae and other turbidity material that bloom blue algae etc. has the come-up characteristic to water-treatment technology field.
Background technology
Bloom blue algae is the difficult problem in the drinking water treatment, has air bag in the bloom blue algae cell, for algae provides buoyancy, algae can not be sunk, and is difficult for being removed by conventional coagulating sedimentation technology.The algae air bag can be resisted the ambient pressure of 0.4～0.7MPa, if ambient pressure exceeds this pressure, air bag just irreversibly breaks.At present; The device of waterworks when handling blue-green algae comprises working shaft, water treating pond (generally being made up of mixing pit, reaction tank, settling tank) and chemicals dosing plant etc.; Working shaft supplies water to mixing pit through water pipe; Chemicals dosing plant adds algicide and coagulating agent to mixing pit, and algae-containing water mixes in mixing pit, reaction tank, settling tank, reaction and precipitation process.At first add algicide algae is killed, add a large amount of coagulating agent again other impurity particles in algae particle and the water are adhered to each other, increase the algae particle weight, redeposition is removed.The algicide that in source water, adds has strong oxidizers such as chlorine, potassium permanganate, ozone, and coagulating agent has Tai-Ace S 150, iron(ic)chloride, Poly aluminum Chloride (PAC) etc.There are many problems in this water treatment method; Algicide should fully contact more than the 20min with algae; After algae was killed, frustule broke, and dissolved matters such as algae toxin and enchylema leak in the water; The algae toxin has very strong toxicity, and algae liquid also can generate carcinogenic substance with follow-up water treatment sterilizing agent reaction.Algicide has the intensive corrosive nature to water supply line.Coagulating sedimentation still need add a large amount of coagulating agent and just can make the algae deposition behind the algae extremely, and more than the dosage 40mg/L, cost is high.
Summary of the invention
The purpose of this invention is to provide a kind of deep water circulation enhanced coagulation deposition and remove algae water treatment system and method; Solve existing waterworks and algae-containing water is handled water treatment system and the existing above-mentioned shortcoming and defect of method that is adopted; With the algae-containing water pre-treatment that circulates through the ballow, make the algae air bag under the effect of deep water high pressure, break loss of buoyance through the present invention; Thereby sedimentation speed is fast, and it is effective to remove algae; And frustule does not break in the pre-treatment, can not cause that algae liquid leaks safety and environmental protection.
The objective of the invention is to realize that through following technical scheme deep water circulation enhanced coagulation deposition is removed the algae water treatment system, comprise working shaft, water treating pond and chemicals dosing plant; Working shaft, chemicals dosing plant are respectively through the pipe connection water treating pond; It is characterized in that be provided with the deep water circulation well of balloon rupture in the compressing frustule, the circulation well is provided with import and outlet; The import of circulation well connects said working shaft, and the outlet of circulation well connects said water treating pond.
Said circulation well is a cylindrical closed vessel, and by Wai Jing and interior well construction, interior well diameter is less than outer well diameter; Interior well location is inner in outer well, and the Nei Jing top is fixed on the Wai Jing top, and the Nei Jing top is provided with outlet and connects water treating pond; The degree of depth of interior well is less than the degree of depth of outer well, interior shaft bottom end opening, and the circulation well is vertically installed; Outer depth is 60m at least, and the wall of outer well is provided with import and is connected with working shaft.
Said water treating pond comprises mixing pit, reaction tank, settling tank, and mixing pit, reaction tank, settling tank are arranged along water (flow) direction, and the import of mixing pit is through the outlet of water pipe connection circulation well, and mixing pit, reaction tank, settling tank are the rectangular pool of opening; Separate with the perforate wall between mixing pit and reaction tank, reaction tank and the settling tank, be divided at least 3 lattice along water (flow) direction with the perforate wall in the reaction tank; Whisking appliance is installed in the mixing pit, in every lattice of reaction tank stirring rake is installed; Water surface site is equipped with effluent trough on the terminal wall of settling tank; On the terminal wall of settling tank, rising pipe is installed; The import of rising pipe is stretched in the effluent trough in the settling tank; The outlet of rising pipe is stretched out outside the settling tank, and the shore pipe that install the settling tank bottom stretches out logical waterways outside the pond, and shore pipe outlet position is equipped with mud valve; Described shore pipe is a perforated pipe, longitudinally offers the circular hole of 2 row's diameter 20mm.
Said chemicals dosing plant is made up of liquor box, solution pipe and valve, and solution pipe connects said mixing pit.
Utilize above-mentioned deep water circulation enhanced coagulation deposition to remove the method that the algae water treatment system is removed algae; Comprise the algae-containing water that provides by working shaft in water treating pond through chemicals dosing plant add that coagulating agent mixes, reaction and precipitation process; It is characterized in that; The described algae-containing water dark ballow of 60m at least of before getting into water treating pond, flowing through makes air bag in the frustule in the algae-containing water under the deep water high pressure, break loss of buoyance and is easy to.
The invention has the beneficial effects as follows:
1) algae flow algae balloon rupture loss of buoyance behind the ballow is removed through coagulant sedimentation easily, and is effective;
2) need in water, not add algicide and kill algae, the balloon rupture in the deep water pre-treatment in the frustule, frustule does not break, and can not cause that objectionable impurities such as algae toxin is discharged in the water, has improved water supply security;
3) algae behind the balloon rupture is precipitated easily, no longer need add a large amount of coagulating agent, has saved medicament, and current only need overcome circulation well water flow resistance, and energy consumption is low, so the present invention has reduced the running cost of water treatment.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Among the figure: 1 working shaft, 2 water inlet pipes, 3 rising pipes, 4 water sources, 5 circulation wells, 6 outer wells; Well in 7,8 water inlet pipes, 9 mixing pits, 10 whisking appliances, 11 solution pools, 12 solution pipe; 13 valves, 14 reaction tanks, 15 perforate walls, 16 stirring rakes, 17 settling tanks; 18 effluent troughs, 19 rising pipes, 20 shore pipes, 21 mud valves, 22 waterwayss.
Embodiment
Further specify the present invention in conjunction with accompanying drawing and embodiment.The embodiment of the invention is as shown in Figure 1, is made up of working shaft 1, circulation well 5, water treating pond (being made up of mixing pit 9, reaction tank 14, settling tank 17) and chemicals dosing plant etc.The import and export of working shaft 1 are connected with pump water inlet 2 and pumping line 3 respectively, and pump water inlet 2 stretches in the water source 4, and pumping line 3 links to each other with the outer well 6 of circulation well 5.
Working shaft injects outer well with algae-containing water, flows to the shaft bottom downwards, again from interior aboveground liter, gets into mixing pit through water inlet pipe, and the air bag in the frustule breaks under the effect of circulation well depth water high pressure, makes the algae loss of buoyance be easy to deposition.
Mixing pit 9 is the pond of top end opening; The center is equipped with whisking appliance 10; Mixing pit water inlet pipe 8 inserts from mixing pit 9 sides, link to each other with reaction tank 14 with the mixing pit 9 of mixing pit water inlet pipe 8 relative sides, between with 15 separations of perforate wall; Solution pipe 12 links to each other with liquor box 11, and solution pipe 12 outlets are stretched in the mixing pit 9.
Settling tank 17 is the rectangular pool of top end opening; Water surface site is equipped with effluent trough 18 on the wall endways; On settling tank 17 terminal walls, settling tank rising pipe 19 is installed, the import of settling tank rising pipe 19 is stretched in the effluent trough 18, and outlet is stretched out outside the settling tank 17; Settling tank 17 bottoms are equipped with sludge from sedimentation tank pipe 20 and stretch out and enter waterways 22 outside the pond, and 20 outlets of sludge from sedimentation tank pipe are equipped with mud valve 21.
Described sludge from sedimentation tank pipe 20 is a perforated pipe, longitudinally offers the circular hole of two row's diameter 20mm.
The algae-containing water that provides by working shaft in water treating pond (circulation well 5, mixing pit 9, reaction tank 14) through chemicals dosing plant add that coagulating agent mixes, reaction and precipitation process; It is characterized in that; The described algae-containing water dark ballow of 60m at least of before getting into water treating pond, flowing through makes air bag in the frustule in the algae-containing water under the deep water high pressure, break loss of buoyance and is easy to.
Through deep water round-robin algae-containing water flow through successively mixing pit, reaction tank and settling tank, coagulating agent and algae and the collision of other impurity particles are combined into bigger floc particle, and deposition is removed in settling tank.This method makes the algae balloon rupture, and sedimentation speed is fast, and removal effect is good; Do not destroy frustule, water supply security; Medicine consumes, energy consumption is low, and running cost is low.
Concrete experimental water is taken from the Jiangsu large-size lake, and the wawter bloom microcystic aeruginosa accounts for 95% in the algae.Experimental installation is as shown in Figure 1, handles final settling tanks water outlet algae chlorophyll a average removal rate 93% through native system, and effect obviously is better than prior art; Poly aluminum Chloride (PAC) dosage 15mg/L, cost is low, and the microscope observing cell wall is intact; Enchylema does not leak, and water is not caused secondary pollution.
Claims (5)
1. a deep water circulation enhanced coagulation deposition is removed the algae water treatment system; Comprise working shaft (1), water treating pond and chemicals dosing plant, working shaft (1), chemicals dosing plant through the pipe connection water treating pond, is characterized in that respectively; Be provided with the deep water circulation well (5) of balloon rupture in the compressing frustule; The circulation well is provided with import and outlet, and the import of circulation well (5) connects said working shaft (1), and the outlet of circulation well (5) connects said water treating pond.
2. the described deep water circulation of claim 1 enhanced coagulation deposition is removed the algae water treatment system, it is characterized in that said circulation well (5) is a cylindrical closed vessel; Be made up of outer well (6) and interior well (7), interior well (7) diameter is less than outer well (6) diameter, and interior well (7) is positioned at outer well (6) inside; Interior well (7) top is fixed on outer well (6) top, and interior well (7) top is provided with outlet and connects water treating pond, and the degree of depth of interior well (7) is less than the degree of depth of outer well (6); Interior well (7) bottom end opening; The circulation well is vertically installed, and outer well (6) degree of depth is 60m at least, and the wall of outer well (6) is provided with import and is connected with working shaft (1).
3. the described deep water circulation of claim 1 enhanced coagulation deposition is removed the algae water treatment system; It is characterized in that; Said water treating pond comprises mixing pit (9), reaction tank (14), settling tank (17); Mixing pit (9), reaction tank (14), settling tank (17) are arranged along water (flow) direction, and the import of mixing pit (9) is through the outlet of water pipe connection circulation well (5), and mixing pit (9), reaction tank (14), settling tank (17) are the rectangular pool of opening; Separate with perforate wall (15) between mixing pit (9) and reaction tank (14), reaction tank (14) and the settling tank (17), be divided at least 3 lattice along water (flow) direction with perforate wall (15) in the reaction tank (14); Whisking appliance (10) is installed in the mixing pit (9), stirring rake (16) is installed in every lattice of reaction tank (14); Water surface site is equipped with effluent trough (18) on the terminal wall of settling tank (17); On the terminal wall of settling tank (17), rising pipe (19) is installed; The import of rising pipe (19) is stretched in the effluent trough (18) in the settling tank (17); The outlet of rising pipe (19) is stretched out outside the settling tank (17), and the shore pipe (20) that install settling tank (17) bottom stretches out logical waterways (22) outside the pond, and shore pipe (20) outlet position is equipped with mud valve (21); Described shore pipe (20) is a perforated pipe, longitudinally offers the circular hole of 2 row's diameter 20mm.
4. the described deep water circulation of claim 1 enhanced coagulation deposition is removed the algae water treatment system, it is characterized in that said chemicals dosing plant is made up of liquor box (11), solution pipe (12) and valve (13), and solution pipe (12) connects said mixing pit (9).
5. one kind is utilized deep water circulation enhanced coagulation deposition as claimed in claim 1 to remove the method that the algae water treatment system is removed algae; Comprise the algae-containing water that provides by working shaft (1) in water treating pond through chemicals dosing plant add that coagulating agent mixes, reaction and precipitation process; It is characterized in that; The described algae-containing water dark ballow of 60m at least of before getting into water treating pond, flowing through makes air bag in the frustule in the algae-containing water under the deep water high pressure, break loss of buoyance and is easy to.
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| CN 201210109541 CN102633383B (en) | 2012-04-16 | 2012-04-16 | Deepwater circulating and enhanced coagulating sedimentation algae-removing water treatment system and method |
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| CN 201210109541 CN102633383B (en) | 2012-04-16 | 2012-04-16 | Deepwater circulating and enhanced coagulating sedimentation algae-removing water treatment system and method |
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Cited By (8)
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| CN104250059A (en) * | 2014-09-29 | 2014-12-31 | 厦门佳楠科技有限公司 | High-algae-content source water treatment system and treatment method |
| CN104250059B (en) * | 2014-09-29 | 2017-01-04 | 厦门佳楠科技有限公司 | The processing system of a kind of algae blooms water source water and processing method |
| CN106310992A (en) * | 2016-09-28 | 2017-01-11 | 西安建筑科技大学 | Static mixing type deep-well pressurization and reinforcement water treatment equipment for removing blue algae |
| CN106348357A (en) * | 2016-09-28 | 2017-01-25 | 西安建筑科技大学 | Unpowered chemical addition and mixed type deep well pressurization reinforcement algae control water treatment equipment |
| CN106830110A (en) * | 2017-01-10 | 2017-06-13 | 无锡德林海环保科技股份有限公司 | A kind of gas-liquid mixed flow algae removal device |
| CN108383182A (en) * | 2018-05-11 | 2018-08-10 | 西安建筑科技大学 | A kind of gradual change section deep-well mixing reactor |
| CN109574383A (en) * | 2018-12-06 | 2019-04-05 | 重庆市李家沱排水有限公司 | A kind of High-rate sedimentation pond ecological drop phytem system |
| CN110498519A (en) * | 2019-08-21 | 2019-11-26 | 西安建筑科技大学 | A kind of stagnant slow flow water bodies gas stripping type deep-well pressurization control algae of shallow-layer and decontamination dyeing equipment |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104250059A (en) * | 2014-09-29 | 2014-12-31 | 厦门佳楠科技有限公司 | High-algae-content source water treatment system and treatment method |
| CN104250059B (en) * | 2014-09-29 | 2017-01-04 | 厦门佳楠科技有限公司 | The processing system of a kind of algae blooms water source water and processing method |
| CN106310992B (en) * | 2016-09-28 | 2018-12-04 | 西安建筑科技大学 | A kind of pressurization of static mixing type deep-well, which is strengthened, removes cyanobacteria water treatment facilities |
| CN106348357A (en) * | 2016-09-28 | 2017-01-25 | 西安建筑科技大学 | Unpowered chemical addition and mixed type deep well pressurization reinforcement algae control water treatment equipment |
| CN106310992A (en) * | 2016-09-28 | 2017-01-11 | 西安建筑科技大学 | Static mixing type deep-well pressurization and reinforcement water treatment equipment for removing blue algae |
| CN106348357B (en) * | 2016-09-28 | 2019-06-11 | 西安建筑科技大学 | Control algae water treatment facilities are strengthened in a kind of unpowered dispensing and the pressurization of hybrid deep-well |
| CN106830110A (en) * | 2017-01-10 | 2017-06-13 | 无锡德林海环保科技股份有限公司 | A kind of gas-liquid mixed flow algae removal device |
| CN106830110B (en) * | 2017-01-10 | 2023-08-11 | 无锡德林海环保科技股份有限公司 | Gas-liquid mixed flow algae removal device |
| CN108383182A (en) * | 2018-05-11 | 2018-08-10 | 西安建筑科技大学 | A kind of gradual change section deep-well mixing reactor |
| CN108383182B (en) * | 2018-05-11 | 2024-03-08 | 西安建筑科技大学 | Deep well mixing reactor with gradual change section |
| CN109574383A (en) * | 2018-12-06 | 2019-04-05 | 重庆市李家沱排水有限公司 | A kind of High-rate sedimentation pond ecological drop phytem system |
| CN110498519A (en) * | 2019-08-21 | 2019-11-26 | 西安建筑科技大学 | A kind of stagnant slow flow water bodies gas stripping type deep-well pressurization control algae of shallow-layer and decontamination dyeing equipment |
| CN110498519B (en) * | 2019-08-21 | 2024-02-13 | 西安建筑科技大学 | Shallow stagnant water body air-lift deep well pressurization algae control and pollution removal equipment |
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