CN104961236B - Device for enhancing drug residue removal of constructed wetland and preventing spreading of drug-resistant bacteria - Google Patents
Device for enhancing drug residue removal of constructed wetland and preventing spreading of drug-resistant bacteria Download PDFInfo
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- CN104961236B CN104961236B CN201510351628.0A CN201510351628A CN104961236B CN 104961236 B CN104961236 B CN 104961236B CN 201510351628 A CN201510351628 A CN 201510351628A CN 104961236 B CN104961236 B CN 104961236B
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- fuel cell
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- artificial swamp
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention discloses a device for enhancing drug residue removal of a constructed wetland and preventing spreading of drug-resistant bacteria. The device comprises a reed tower and the microbial fuel cell type constructed wetland and an electrochemical reaction area. The reed tower is sequentially provided with reeds, a first reaction pond, a second reaction pond, a third reaction pond, a fourth reaction pond and a first water tank form top to bottom. A first water outlet is formed in the lower end of the first water tank and is communicated with a second water tank. A second water outlet is formed in the second water tank and is communicated with the microbial fuel cell type constructed wetland. A third water outlet is formed in the upper end of the microbial fuel cell type constructed wetland and is communicated with a third water tank. A fourth water outlet is formed in the lower end of the third water tank and is communicated with the electrochemical reaction area. The method aims to promote drug residue removal of the constructed wetland and prevent spreading of the drug-resistant bacteria by means of the coupling function of root exudations and bioelectrochemistry. The drug residue removal efficiency is improved. Besides, generated electric energy is used in the electrochemical reaction area, energy is saved, cost is reduced, and recycling is achieved.
Description
Technical field
The invention belongs to environmental improvement and resist technology field, be specifically related to a kind of strengthened artificial wet land and remove drug residue
Thing also prevents device and the application thereof that fastbacteria spreads.
Background technology
In recent years, along with medicine and the extensive application of personal care articles (PPCPs), make the pollutant kind in environment numerous
Many, complicated component, the pollution to environment is the most serious.Such as, drug residue is in addition to causing chemical contamination, it is also possible to induction
The generation of fastbacteria in environment, produces serious harm to human health and ecosystem.
At present, numerous researchs show that Treatment Technology of Constructed Wetland is better than other water and processes the removal effect of organic pollution
Technology, artificial swamp, in the method removing drug residue, can reduce the content of left drug in sewage to a certain extent,
But, artificial swamp matrix biopolymers film is likely to act as fastbacteria and the potential storage vault of drug resistant gene and the work of source of release
With.Therefore, the drug residue prevent fastbacteria from spreading of the most effectively degrading, is that face in some time to come great is chosen
War.
Summary of the invention
Technical problem: for overcoming the deficiencies in the prior art, it is an object of the invention to the base at Traditional Man wetland
On plinth, it is provided that one utilizes root exudates and bioelectrochemical coupling to promote that artificial swamp removes drug residue also
Prevent the method that fastbacteria spreads, improve drug residue removal efficiency, and the electric energy produced is for electrochemical reaction
Qu Zhong, saves the energy, reduces cost, recycles.
Technical scheme: for achieving the above object, the technical solution used in the present invention is: a kind of strengthened artificial wet land removes medicine
Thing residue also prevents the device that fastbacteria spreads, and this device includes phragmites communis tower, Microbial fuel cell type artificial swamp and electricity
Chemical reaction zone；Described phragmites communis top of tower side is provided with phragmites communis tower water inlet, described phragmites communis tower be sequentially provided with from top to bottom phragmites communis,
First reaction tank, the second reaction tank, the 3rd reaction tank, the 4th reaction tank and the first tank；Described first tank lower end is provided with
First outlet, described first outlet and the second tank be connected, and described second tank is provided with the second outlet, and described second
Outlet is connected with Microbial fuel cell type artificial swamp, and described Microbial fuel cell type artificial swamp depends on from top to bottom
Secondary it is provided with water plant, cathode electrode, the first filler, anode electrode, the second filler；Described Microbial fuel cell type Manual moist
Upper end, ground is provided with the 3rd outlet, and described 3rd outlet and the 3rd tank are connected, and described 3rd tank lower end is provided with the 4th
Outlet, described 4th outlet is connected with electrochemical reaction district, is provided with anode and negative electrode, institute in described electrochemical reaction district
The anode stating electrochemical reaction district is connected with Microbial fuel cell type artificial swamp cathode electrode by wire, electrochemistry
The negative electrode of reaction zone is connected with Microbial fuel cell type artificial swamp anode electrode by wire, constitutes complete Guan Bi and returns
Road, described electrochemical reaction district is arranged over discharge outlet.
Further, have bottom described first reaction tank, the second reaction tank, the 3rd reaction tank, the 4th reaction tank and set respectively
There is one group of aperture, and the height of each reaction tank is 10cm, it is desirable to only root of phragmites communis pastern divides in reaction tank, stem and leaf portion
It is stretched over outside pond by the hole of each reaction tank both sides.
Further, described second and third respectively opens a hole with four reaction tank both sides at high 7cm.
Further, described water plant, winter-spring season plantation Herba Oenanthes Javanicae, plant water harmony dish summer and autumn.
Further, the first filler and the second filler be the most respectively particle diameter be 1～2mm sandstone and particle diameter be 10～
The zeolite of 20mm.
Further, the anode electrode in described electrochemical reaction district uses graphite, and cathode electrode uses rustless steel steel bar.
Above-mentioned a kind of strengthened artificial wet land remove drug residue and prevent fastbacteria from spreading device in environmental improvement
With the application in terms of protection.
Above-mentioned device carries out strengthened artificial wet land and removes drug residue the method that prevents fastbacteria from spreading, sewage from
Phragmites communis tower water inlet enters phragmites communis tower, sequentially passes through first, second and third and four layers of reaction tank, and phragmites communis root system is more flourishing can be divided
Secreting substantial amounts of Organic substance, i.e. root exudates, the low molecule such as saccharide in phragmites communis root exudates, organic acid, aminoacid is organic
Thing and plant mucilage become the important organic carbon source in root system microenvironment, are then entered the second water by phragmites communis tower the first outlet
Groove, flows in Microbial fuel cell type artificial swamp through the second tank, micro-in Microbial fuel cell type artificial swamp
Biological easily biodegradable organics the final inorganic mineralising of being converted into by medicine, produces electronics and proton, electricity during degraded medicine
Son is sent to Microbial fuel cell type artificial swamp anode surface by carrier, by Microbial fuel cell type artificial swamp sun
Pole is delivered to the negative electrode in electrochemical reaction district, then is delivered to the anode in electrochemical reaction district, warp by the negative electrode in electrochemical reaction district
External circuit is delivered to Microbial fuel cell type artificial swamp negative electrode, Microbial fuel cell type artificial swamp and electrochemical reaction
Form the loop of Guan Bi between district, produce electric current；Proton moves to Microbial fuel cell type artificial swamp negative electrode by solution,
At Microbial fuel cell type artificial swamp cathode surface, be combined generation reduction reaction with material and the electronics of oxidation state.Wherein
The sewage flowed in Microbial fuel cell type artificial swamp contains substantial amounts of root exudates, easy due in root exudates
Degradation material can promote to produce electricity as producing electricity co-substrate, has three usefulness: one is to promote Microbial fuel after promoting to produce electricity
The product electricity bacterium removal to medicine of cell type artificial swamp；Two is the generation producing the electrical effect internal fastbacteria of suppression wetland；Three are
Produce electricity and can strengthen the bactericidal action in electrochemical reaction district, reduce the pathogen in water outlet and fastbacteria quantity further.Furthermore, reed
Reed Radial Oxygen Loss from Root ability is relatively strong, by the nature oxygen therapy effect of phragmites communis root system, for providing aerobic, anaerobism and anoxia in packing area
The environment of cycle alternation, can increase the removal ability to drug residue further.
Beneficial effect: the present invention compared with the existing technology, has the advantage that
1) phragmites communis Radial Oxygen Loss from Root ability is relatively strong, by the nature oxygen therapy effect of phragmites communis root system, for phragmites communis tower provide aerobic,
Anaerobism and Anoxic environment alternately, can increase the removal ability to drug residue further.
2) phragmites communis root exudates can promote to produce electricity as a kind of natural organic matter, has three benefits after promoting to produce electricity:
One is the product electricity bacterium removal to medicine promoting Microbial fuel cell type artificial swamp；
Two is the generation producing the electrical effect internal fastbacteria of suppression wetland；
Three is to produce electricity to strengthen the bactericidal action in electrochemical reaction district, reduces the pathogen in water outlet and fastbacteria further
Quantity.
3) this system is while purifying water to greatest extent, creates electric energy, and electric energy for remaining in sewage
Killing of pathogenic bacteria body and a small amount of drug-resistant bacteria.
4) this system not only makes full use of the multiple mechanism strengthenings such as ecology, microbiology, electrochemistry, bio electrochemistry
Except medicine, and required electric energy and organic substrates are entirely from system itself, it is not necessary to consume any fossil energy or
Chemical agent.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the embodiment of the present invention；
Fig. 2 is phragmites communis tower apparatus axonometric chart of the present invention.
Detailed description of the invention
Embodiment 1:
As it is shown in figure 1, a kind of strengthened artificial wet land of the present invention removes drug residue the dress preventing fastbacteria from spreading
Putting, this device includes phragmites communis tower, Microbial fuel cell type artificial swamp and electrochemical reaction district；Phragmites communis top of tower side is provided with
Phragmites communis tower water inlet 1, phragmites communis tower be sequentially provided with from top to bottom phragmites communis the 2, first reaction tank, the second reaction tank, the 3rd reaction tank,
Four reaction tank 3 and the first tanks 4；First tank 4 lower end is provided with the first outlet 5, the first outlet 5 and the second tank 6 phase
Connection, the second tank 6 is provided with the second outlet 7, and the second outlet 7 is connected with Microbial fuel cell type artificial swamp, micro-
Biological fuel cell type artificial swamp is sequentially provided with water plant 8, cathode electrode the 9, first filler 10, anode electrode from top to bottom
11, the second filler 12；Microbial fuel cell type artificial swamp upper end is provided with the 3rd outlet 13, the 3rd outlet 13 and the 3rd
Tank 14 is connected, and the 3rd tank 14 lower end is provided with the 4th outlet 15, and the 4th outlet 15 is connected with electrochemical reaction district,
Being provided with anode 16 and negative electrode 17 in electrochemical reaction district, the anode 16 in electrochemical reaction district is by wire and microbiological fuel cell
Type artificial swamp cathode electrode 9 is connected, and the negative electrode 17 in electrochemical reaction district is artificial with Microbial fuel cell type by wire
Wetland anode electrode 11 is connected, and constitutes complete closed-loop path, and described electrochemical reaction district is arranged over discharge outlet 18.First
One group of aperture it is respectively equipped with bottom reaction tank, the second reaction tank, the 3rd reaction tank, the 4th reaction tank 3, and each reaction tank
It is highly 10cm, it is desirable to only root of phragmites communis pastern divides in reaction tank, and stem and leaf portion are stretched by the hole of each reaction tank both sides
Open up outside pond.Second and third and four reaction tank both sides respectively open a hole at high 7cm.Water plant 8, winter-spring season plantation Herba Oenanthes Javanicae, the summer
Plant water harmony dish autumn.First filler 10 and the second filler 12 are that particle diameter is 1～2mm sandstone and particle diameter is 10 the most respectively
～the zeolite of 20mm.Anode 16 electrode in electrochemical reaction district uses graphite, and negative electrode 17 electrode uses rustless steel steel bar.
The specific works process of this device is as follows:
A kind of strengthened artificial wet land that carries out removes drug residue the method preventing fastbacteria from spreading, and sewage is from phragmites communis tower
Water inlet 1 enters phragmites communis tower, sequentially passes through first, second and third and four layers of reaction tank 3, phragmites communis root system is more flourishing can secrete big
The Organic substance of amount, i.e. root exudates, the low molecule organic matter such as saccharide in phragmites communis root exudates, organic acid, aminoacid and
Plant mucilage becomes the important organic carbon source in root system microenvironment, is then entered the second tank 6 by phragmites communis tower the first outlet 5,
Flow in Microbial fuel cell type artificial swamp through the second tank 6, the micro-life in Microbial fuel cell type artificial swamp
Medicine is converted into easily biodegradable organics final inorganic mineralising by thing, produces electronics and proton, electronics during degraded medicine
It is sent to Microbial fuel cell type artificial swamp anode electrode 11 surface, by Microbial fuel cell type Manual moist by carrier
Ground anode electrode 11 is delivered to the negative electrode 17 in electrochemical reaction district, then it is anti-to be delivered to electrochemistry by the negative electrode 17 in electrochemical reaction district
Answer the anode 16 in district, be delivered to Microbial fuel cell type artificial swamp cathode electrode 9, Microbial fuel cell type through external circuit
Form the loop of Guan Bi between artificial swamp and electrochemical reaction district, produce electric current；Proton moves to microorganism by solution and fires
Material cell type artificial swamp cathode electrode 9, on Microbial fuel cell type artificial swamp cathode electrode 9 surface, with oxidation state
Material and electronics combine and reduction reaction occur.
Claims (8)
1. a strengthened artificial wet land removes drug residue the device preventing fastbacteria from spreading, it is characterised in that this device
Including phragmites communis tower, Microbial fuel cell type artificial swamp and electrochemical reaction district；Described phragmites communis top of tower side is provided with phragmites communis
Tower water inlet (1), described phragmites communis tower is sequentially provided with phragmites communis (2), the first reaction tank, the second reaction tank, the 3rd reaction from top to bottom
Pond, the 4th reaction tank (3) and the first tank (4)；Described first tank (4) lower end is provided with the first outlet (5), and described first
Outlet (5) is connected with the second tank (6), and described second tank (6) is provided with the second outlet (7), described second outlet
(7) being connected with Microbial fuel cell type artificial swamp, described Microbial fuel cell type artificial swamp is the most successively
It is provided with water plant (8), cathode electrode (9), the first filler (10), anode electrode (11), the second filler (12)；Described microorganism
Feulcell prototype artificial swamp upper end is provided with the 3rd outlet (13), and described 3rd outlet (13) is connected with the 3rd tank (14)
Logical, described 3rd tank (14) lower end is provided with the 4th outlet (15), described 4th outlet (15) and electrochemical reaction district phase
Connection, is provided with anode (16) and negative electrode (17) in described electrochemical reaction district, the anode (16) in described electrochemical reaction district passes through
Wire is connected with Microbial fuel cell type artificial swamp cathode electrode (9), and the negative electrode (17) in electrochemical reaction district is by leading
Line is connected with Microbial fuel cell type artificial swamp anode electrode (11), constitutes complete closed-loop path, described electrochemistry
Reaction zone is arranged over discharge outlet (18).
A kind of strengthened artificial wet land the most according to claim 1 removes drug residue the dress preventing fastbacteria from spreading
Put, it is characterised in that: described first reaction tank, the second reaction tank, the 3rd reaction tank, the 4th reaction tank (3) bottom are respectively equipped with
One group of aperture, and the height of each reaction tank is 10cm, it is desirable to phragmites communis only has root system part in reaction tank, and stem and leaf portion lead to
The hole crossing each reaction tank both sides is stretched over outside pond.
A kind of strengthened artificial wet land the most according to claim 1 removes drug residue the dress preventing fastbacteria from spreading
Put, it is characterised in that: described second and third respectively opens a hole with four reaction tank both sides at high 7cm.
A kind of strengthened artificial wet land the most according to claim 1 removes drug residue the dress preventing fastbacteria from spreading
Put, it is characterised in that: described water plant (8), winter-spring season plantation Herba Oenanthes Javanicae, plant water harmony dish summer and autumn.
A kind of strengthened artificial wet land the most according to claim 1 removes drug residue the dress preventing fastbacteria from spreading
Put, it is characterised in that: the first filler (10) and the second filler (12) be the most respectively particle diameter be 1～2mm sandstone and particle diameter
It it is the zeolite of 10～20mm.
A kind of strengthened artificial wet land the most according to claim 1 removes drug residue the dress preventing fastbacteria from spreading
Put, it is characterised in that: anode (16) electrode in described electrochemical reaction district uses graphite, and negative electrode (17) electrode uses rustless steel
Steel bar.
7. a kind of strengthened artificial wet land described in any one of claim 1 ~ 6 is removed drug residue and prevents fastbacteria from spreading
Device application in terms of environmental improvement with protection.
8. the device described in any one of claim 1 ~ 6 carries out strengthened artificial wet land removal drug residue and prevents fastbacteria from expanding
The method dissipated, it is characterised in that sewage enters phragmites communis tower from phragmites communis tower water inlet (1), sequentially passes through first, second and third and four layers
Reaction tank (3), the more flourishing substantial amounts of Organic substance, i.e. root exudates can secreted of phragmites communis root system, in phragmites communis root exudates
Saccharide, organic acid, aminoacid low molecule organic matter and plant mucilage become the important organic carbon source in root system microenvironment, then
Entered the second tank (6) by phragmites communis tower the first outlet (5), flow into Microbial fuel cell type through the second tank (6) artificial
In wetland, medicine is converted into easily biodegradable organics final inorganic ore deposit by the microorganism in Microbial fuel cell type artificial swamp
Changing, produce electronics and proton during degraded medicine, electronics is sent to Microbial fuel cell type artificial swamp by carrier
Anode surface, is delivered to the negative electrode (17) in electrochemical reaction district by Microbial fuel cell type artificial swamp anode electrode (11),
It is delivered to the anode (16) in electrochemical reaction district again by the negative electrode in electrochemical reaction district, is delivered to Microbial fuel electricity through external circuit
Pond type artificial swamp cathode electrode (9), forms Guan Bi between Microbial fuel cell type artificial swamp and electrochemical reaction district
Loop, produces electric current；Proton moves to Microbial fuel cell type artificial swamp cathode electrode (9) by solution, in microorganism
Feulcell prototype artificial swamp cathode electrode (9) surface, is combined generation reduction reaction with material and the electronics of oxidation state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351628.0A CN104961236B (en) | 2015-06-23 | 2015-06-23 | Device for enhancing drug residue removal of constructed wetland and preventing spreading of drug-resistant bacteria |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351628.0A CN104961236B (en) | 2015-06-23 | 2015-06-23 | Device for enhancing drug residue removal of constructed wetland and preventing spreading of drug-resistant bacteria |
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| Publication Number | Publication Date |
|---|---|
| CN104961236A CN104961236A (en) | 2015-10-07 |
| CN104961236B true CN104961236B (en) | 2017-01-11 |
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| CN201510351628.0A Active CN104961236B (en) | 2015-06-23 | 2015-06-23 | Device for enhancing drug residue removal of constructed wetland and preventing spreading of drug-resistant bacteria |
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| CN108751644B (en) * | 2018-05-29 | 2023-09-15 | 榆林学院 | Urban sludge cracking and energy conversion device and urban sludge treatment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001259671A (en) * | 2000-03-22 | 2001-09-25 | Matsushita Seiko Co Ltd | Water purifying device |
| CN103523984A (en) * | 2012-10-18 | 2014-01-22 | 赵利群 | Landscape-type multifunctional three-dimensional artificial wetland |
| CN103755031A (en) * | 2014-01-03 | 2014-04-30 | 东南大学 | Thin plant packed bed and hydroponic plant bed superimposed wetland processing sewage system |
| CN104003580A (en) * | 2014-06-04 | 2014-08-27 | 东南大学 | System for treatment of wetland-produced electricity from domestic sewage and electrochemical disinfection of wetland effluent |
-
2015
- 2015-06-23 CN CN201510351628.0A patent/CN104961236B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001259671A (en) * | 2000-03-22 | 2001-09-25 | Matsushita Seiko Co Ltd | Water purifying device |
| CN103523984A (en) * | 2012-10-18 | 2014-01-22 | 赵利群 | Landscape-type multifunctional three-dimensional artificial wetland |
| CN103755031A (en) * | 2014-01-03 | 2014-04-30 | 东南大学 | Thin plant packed bed and hydroponic plant bed superimposed wetland processing sewage system |
| CN104003580A (en) * | 2014-06-04 | 2014-08-27 | 东南大学 | System for treatment of wetland-produced electricity from domestic sewage and electrochemical disinfection of wetland effluent |
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| CN104961236A (en) | 2015-10-07 |
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