CN103482798A - Device and method for eliminating algal toxin in water body - Google Patents
Device and method for eliminating algal toxin in water body Download PDFInfo
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- CN103482798A CN103482798A CN201310478132.0A CN201310478132A CN103482798A CN 103482798 A CN103482798 A CN 103482798A CN 201310478132 A CN201310478132 A CN 201310478132A CN 103482798 A CN103482798 A CN 103482798A
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Abstract
The invention discloses a device and method for eliminating algal toxin in a water body, belonging to the technical field of drinking water treatment. The device comprises a coagulation/flocculation sedimentation tank and a forward osmosis membrane reactor, wherein the forward osmosis membrane reactor mainly comprises a reaction tank, a forward osmosis membrane, a drive liquid tank and a liquid storage pot; the forward osmosis membrane is positioned between the reaction tank and the drive liquid tank and separates the reaction tank from the drive liquid tank; the drive liquid tank is communicated with the liquid storage pot; a magnetic field is arranged at the bottom of the liquid storage pot; a backflow valve on the liquid storage pot is communicated with the drive liquid tank through a backflow pump. The method comprises the steps of guiding the polluted water body into the coagulation/flocculation sedimentation tank, performing coagulation/flocculation and sedimentation treatment, and then guiding the water body into the forward osmosis membrane reactor taking magnetic nano particles as the drive liquid, wherein the output water of the forward osmosis membrane reactor is an up-to-standard water body. The device and method disclosed by the invention have the advantages that the structure is simple, the operation is simple and convenient, the water quality after treatment is stable and reliable, the device is economical and safe, secondary pollution is avoided and the like, thereby being suitable for treating the source water polluted by algal toxin.
Description
Technical field
A kind of device and method of eliminating algae toxin in water body belongs to the technical field of drinking water treatment.
Background technology
In recent years, along with the aggravation of surface water pollution, body eutrophication frequently occurs.Body eutrophication causes algae extremely to breed and discharges the algae toxin.In poisons in freshwater, the algae toxin mainly comprises hepatotoxin (hepatotoxins), neurotoxin (neurotoxins) and intracellular toxin (endotoxins).Hepatotoxin comprises Microcystin (microcysin), nodularins (nodularin) and post spore algae toxin (cylindrospermopsin).Neurotoxin mainly comprises anabena toxin-a (an-atoxin-a), anabena toxin-a (s) [anatoxin-a (s)], saxitoxin (saxitoxin), N-STX (neosaxitoxin) and gonyatoxin (gonyautoxin).Current research thinks that Microcystin (microcysin) and nodularins (nodularin) etc. have stronger tumor promotion.Domestic animal and wildlife have been drunk containing after the water of algae toxin, symptom, the even death such as there will be diarrhoea, weak, apocleisis, vomiting, drowsiness, a mouthful discharge of eye increases.The pathology pathology has liver enlargement, hyperemia or downright bad, and enteritis is hemorrhage, pulmonary edema etc.The people is having a bath, is swimming and other leisure waterborne and when motion, and skin contact can cause sensitive part (as eyes) and allergic containing algae toxin water body, drinks on a small quantity into causing acute gastroenteritis; Long-term drinking may cause liver cancer.Algae toxin in poisons in freshwater has become global environmental problem, and algae toxin poisoning event often occurs all over the world, and the algae toxin in tap water also gets more and more people's extensive concerning day by day.
The algae toxin structure is comparatively stable, and the natural degradation process is very slow.And the algae toxin has water-soluble and thermotolerance, heated and boiled is difficult to toxin is destroyed and removes, and common water technology, as coagulating sedimentation, filtration, chlorination can not be removed it fully.Therefore, in the urgent need to a kind of reliable, effectively, economically, feasible eliminate the device and method of algae toxin in drinking water source." the eliminating the method for algae toxin in water body " retrieved at present, process is loaded down with trivial details, complicated operation, floor space are larger, is not easy to be widely used.
Summary of the invention
In order to address the above problem, the invention provides a kind of device and method of eliminating algae toxin in water body, this apparatus structure is simple, reliable for effect, easy to operate; The method can remove fully algae toxin in water body, floor space little, use safely, have no side effect and energy requirement lower.
The object of the present invention is achieved like this:
A kind of device of eliminating algae toxin in water body, comprise coagulation/flocculation sedimentation tank and forward osmosis membrane reactor, described forward osmosis membrane reactor comprises intake pump, inlet valve one, reaction tank, forward osmosis membrane, driving liquid pool and container for storing liquid, forward osmosis membrane is between reaction tank and driving liquid pool, and reaction tank is separated with driving liquid pool, drive liquid pool to be communicated with container for storing liquid by inlet valve two, the container for storing liquid bottom is provided with magnetic field, container for storing liquid is provided with water discharging valve and return valve, and return valve is communicated with driving liquid pool by reflux pump.
Above-mentioned a kind of device of eliminating algae toxin in water body, fill driving liquid in described driving liquid pool.
Described driving liquid is the magnetic nanoparticle suspension liquid.
The Fe that described driving liquid is 2%-20%
3o
4-SiO
2be wrapped with the magnetic nanoparticle suspension liquid of dextran.
Above-mentioned a kind of device of eliminating algae toxin in water body, described magnetic field is electromagnetic field.
A kind of method of eliminating algae toxin in water body comprises the following steps:
Step a, polluted-water is introduced to coagulation/flocculation sedimentation tank, carry out coagulation/flocculation, precipitation process, to remove the pollutents such as common colloid and suspended substance in water body, and tentatively remove the contained algae toxin of water body;
Step b, magnetic nanoparticle is added and drives in liquid pool, regulating and driving liquid concentration is 2%-20%;
Water after step c, step a process enters the forward osmosis membrane reaction tank, carries out positive osmotic treated;
Steps d, will drive the mixed water body that drives liquid and just permeating water outlet containing magnetic nanoparticle obtained in liquid pool to pass into container for storing liquid;
Step e, the intensity of regulating magnetic field, container for storing liquid bottom, make the magnetic nanoparticle in steps d gained mixed water body be gathered in the container for storing liquid bottom;
The water body of step f, the bottom of the container for storing liquid after step e processes is back to the driving liquid pool;
The water body on step g, the container for storing liquid top after step e processes is water body up to standard after processing.
A kind of above-mentioned method of eliminating algae toxin in water body, described polluted-water comprises the source waters such as the river that is subject to blue-green algae breeding and pollutes, lake.
The device and method of eliminating algae toxin in water body because the present invention is a kind of only comprises coagulation/flocculation sedimentation tank and forward osmosis membrane reactor, therefore has simple in structure, reliable for effect, easy to operate beneficial effect; The device and method of eliminating algae toxin in water body because the present invention is a kind of has utilized forward osmosis membrane as tripping device, and forward osmosis membrane is semi-permeable membranes, only allows aqueous solvent to pass through, and therefore can hold back the algae toxin fully, reliable for effect; The present invention adopts magnetic nanoparticle as driving liquid, is convenient to drive the recovery of liquid and reuse economic security and non-secondary pollution.
The accompanying drawing explanation
Fig. 1 is a kind of apparatus structure schematic diagram of eliminating algae toxin in water body of the present invention.
In figure: 1 coagulation/flocculation sedimentation tank, 2 forward osmosis membrane reactors, 3 intake pumps, 4 inlet valves one, 5 reaction tanks, 6 forward osmosis membranes, 7 drive liquid pool, 8 inlet valves two, 9 container for storing liquids, 10 magnetic fields, 11 water discharging valves, 12 return valves, 13 reflux pumps.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
Specific embodiment one
The water bodys such as the river containing the algae toxin that the handled water body of the present embodiment is the laboratory preparation, lake.
A kind of device of eliminating algae toxin in water body of the present embodiment, structural representation as shown in Figure 1.This device comprises coagulation/flocculation sedimentation tank 1 and forward osmosis membrane reactor 2, described forward osmosis membrane reactor 2 comprises intake pump 3, inlet valve 1, reaction tank 5, forward osmosis membrane 6, drives liquid pool 7 and container for storing liquid 9, forward osmosis membrane 6 is between reaction tank 5 and driving liquid pool 7, and reaction tank 5 is separated with driving liquid pool 7, drive liquid pool 7 to be communicated with container for storing liquid 9 by inlet valve 28, container for storing liquid 9 bottoms are provided with magnetic field 10, container for storing liquid 9 is provided with water discharging valve 11 and return valve 12, and return valve 12 is communicated with driving liquid pool 7 by reflux pump 13.
Fill driving liquid in described driving liquid pool 7.
Described driving liquid is the magnetic nanoparticle suspension liquid.
The Fe that described driving liquid is 10%
3o
4-SiO
2be wrapped with the magnetic nanoparticle suspension liquid of dextran.
Described magnetic field 10 is electromagnetic field.
A kind of method of eliminating algae toxin in water body of the present embodiment comprises the following steps:
Step a, polluted-water is introduced to coagulation/flocculation sedimentation tank 1, carry out coagulation/flocculation, precipitation process, to remove the pollutents such as common colloid and suspended substance in water body, and tentatively remove the contained algae toxin of water body;
Step b, magnetic nanoparticle is added and drives in liquid pool 7, regulating and driving liquid concentration is 2%-20%;
Water after step c, step a process enters forward osmosis membrane reaction tank 5, carries out positive osmotic treated;
Steps d, will drive the mixed water body that drives liquid and just permeating water outlet containing magnetic nanoparticle obtained in liquid pool 7 to pass into container for storing liquid 9;
Step e, the intensity of regulating container for storing liquid 9 magnetic fields, bottom 10, make the magnetic nanoparticle in steps d gained mixed water body be gathered in container for storing liquid 9 bottoms;
The water body of step f, container for storing liquid 9 bottoms after step e processes is back to and drives liquid pool 7;
The water body on step g, container for storing liquid 9 tops after step e processes is water body up to standard after processing.
Specific embodiment two
The present embodiment is the removal embodiment of the method for algae toxin in the water sample that adopts the tap water preparation.
Use for laboratory tap water preparation water sample, the content of its Microcystin is 100ug/kg.Adopt Fig. 1 device.Comprise the following steps:
Step a, polluted-water is introduced to coagulation/flocculation sedimentation tank 1, carry out the coagulating sedimentation processing;
Step b, magnetic nanoparticle is added and drives in liquid pool 7, regulating and driving liquid concentration is 2%;
Water after step c, step a process enters forward osmosis membrane reaction tank 5, carries out positive osmotic treated;
Steps d, will drive the mixed water body that drives liquid and just permeating water outlet containing magnetic nanoparticle obtained in liquid pool 7 to pass into container for storing liquid 9;
Step e, the intensity of regulating container for storing liquid 9 magnetic fields, bottom 10, make the magnetic nanoparticle in steps d gained mixed water body be gathered in container for storing liquid 9 bottoms;
The water body of step f, container for storing liquid 9 bottoms after step e processes is back to and drives liquid pool 7;
The water body on step g, container for storing liquid 9 tops after step e processes is water body up to standard after processing.
In the present embodiment, do not detect Microcystin in water outlet, effluent flux is 1.0L/ (m
2h).
Specific embodiment three
The present embodiment is for adopting the removal embodiment of the method for algae toxin in the lake that wawter bloom occurs.
Adopt Fig. 1 device.Comprise the following steps:
Step a, polluted-water is introduced to coagulation/flocculation sedimentation tank 1, carry out the coagulating sedimentation processing;
Step b, magnetic nanoparticle is added and drives in liquid pool 7, regulating and driving liquid concentration is 20%;
Water after step c, step a process enters forward osmosis membrane reaction tank 5, carries out positive osmotic treated;
Steps d, will drive the mixed water body that drives liquid and just permeating water outlet containing magnetic nanoparticle obtained in liquid pool 7 to pass into container for storing liquid 9;
Step e, the intensity of regulating container for storing liquid 9 magnetic fields, bottom 10, make the magnetic nanoparticle in steps d gained mixed water body be gathered in container for storing liquid 9 bottoms;
The water body of step f, container for storing liquid 9 bottoms after step e processes is back to and drives liquid pool 7;
The water body on step g, container for storing liquid 9 tops after step e processes is water body up to standard after processing.
In the present embodiment, do not detect Microcystin in water outlet, effluent flux reaches 10.0L/ (m
2h).
Claims (7)
1. a device of eliminating algae toxin in water body, it is characterized in that comprising coagulation/flocculation sedimentation tank (1) and forward osmosis membrane reactor (2), described forward osmosis membrane reactor (2) comprises intake pump (3), inlet valve one (4), reaction tank (5), forward osmosis membrane (6), drive liquid pool (7) and container for storing liquid (9), forward osmosis membrane (6) is positioned at reaction tank (5) and drives between liquid pool (7), and reaction tank (5) is separated with driving liquid pool (7), drive liquid pool (7) to be communicated with container for storing liquid (9) by inlet valve two (8), container for storing liquid (9) bottom is provided with magnetic field (10), container for storing liquid (9) is provided with water discharging valve (11) and return valve (12), return valve (12) is communicated with driving liquid pool (7) by reflux pump (13).
2. a kind of device of eliminating algae toxin in water body according to claim 1, is characterized in that filling driving liquid in described driving liquid pool (7).
3. a kind of device of eliminating algae toxin in water body according to claim 2, is characterized in that described driving liquid is the magnetic nanoparticle suspension liquid.
4. a kind of device of eliminating algae toxin in water body according to claim 2, is characterized in that the Fe that described driving liquid is 2%-20%
3o
4-SiO
2be wrapped with the magnetic nanoparticle suspension liquid of dextran.
5. a kind of device of eliminating algae toxin in water body according to claim 1, is characterized in that described magnetic field (10) is for electromagnetic field.
6. a method of eliminating algae toxin in water body is characterized in that comprising the following steps:
Step a, polluted-water is introduced to coagulation/flocculation sedimentation tank (1), carry out coagulation/flocculation, precipitation process, to remove the pollutents such as common colloid and suspended substance in water body, and tentatively remove the contained algae toxin of water body;
Step b, magnetic nanoparticle is added and drives in liquid pool (7), regulating and driving liquid concentration is 2%-20%;
Water after step c, step a process enters forward osmosis membrane reaction tank (5), carries out positive osmotic treated;
Steps d, will drive the mixed water body that drives liquid and just permeating water outlet containing magnetic nanoparticle obtained in liquid pool (7) to pass into container for storing liquid (9);
Step e, the intensity of regulating container for storing liquid (9) magnetic field, bottom (10), make the magnetic nanoparticle in steps d gained mixed water body be gathered in container for storing liquid (9) bottom;
The water body of step f, the bottom of the container for storing liquid (9) after step e processes is back to and drives liquid pool (7);
The water body on step g, container for storing liquid (9) top after step e processes is water body up to standard after processing.
7. a kind of method of eliminating algae toxin in water body according to claim 6, is characterized in that described polluted-water comprises the source waters such as the river that is subject to the blue-green algae breeding and pollutes, lake.
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| CN201310478132.0A CN103482798B (en) | 2013-10-14 | 2013-10-14 | A kind of device and method eliminating Algae toxins in water body |
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| CN201310478132.0A CN103482798B (en) | 2013-10-14 | 2013-10-14 | A kind of device and method eliminating Algae toxins in water body |
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Cited By (3)
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| CN106754289A (en) * | 2015-11-19 | 2017-05-31 | 国家开发投资公司 | Dewatering microalgae device and method based on positive penetration theory |
| CN109264817A (en) * | 2018-11-13 | 2019-01-25 | 深圳市周行环保科技有限公司 | A method of control algal grown and inhibition Microcystin |
| CN109876663A (en) * | 2019-03-08 | 2019-06-14 | 天津工业大学 | A kind of algae solution dehydration device and method based on the positive infiltration technology of dead end |
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| US20120175301A1 (en) * | 2011-01-05 | 2012-07-12 | Pacific Advanced Civil Engineering, Inc. | Method for treating contaminated water |
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| CN109876663A (en) * | 2019-03-08 | 2019-06-14 | 天津工业大学 | A kind of algae solution dehydration device and method based on the positive infiltration technology of dead end |
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| CN103482798B (en) | 2015-09-16 |
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Effective date of registration: 20171114 Address after: Group 21, 538100 Guangxi Dongxing city jiangpingzhen million tail village 22 groups and 23 groups of Interchange Patentee after: DONGXING HONGSHENG INDUSTRIAL CO., LTD. Address before: Building 214070 West Liyuan Development Zone in Jiangsu province Wuxi City No. 599 Building 1 Room 305 Patentee before: Wuxi Xresearch Product Design and Research Co., Ltd. |
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Effective date of registration: 20180428 Address after: 214000 305, room 1, 599 West Building Road, Liyuan Development Zone, Wuxi, Jiangsu. Patentee after: Wuxi Xresearch Product Design and Research Co., Ltd. Address before: 538100 Dongxing, Guangxi Jiangping Town, Wan Mei Village 21 groups, 22 groups, 23 groups intersection Patentee before: DONGXING HONGSHENG INDUSTRIAL CO., LTD. |