CN106315858A - Sleeve type microbial dye cell and artificial wetland coupling system suitable for degradation of azo dyes - Google Patents
Sleeve type microbial dye cell and artificial wetland coupling system suitable for degradation of azo dyes Download PDFInfo
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- CN106315858A CN106315858A CN201610879802.3A CN201610879802A CN106315858A CN 106315858 A CN106315858 A CN 106315858A CN 201610879802 A CN201610879802 A CN 201610879802A CN 106315858 A CN106315858 A CN 106315858A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/005—Combined electrochemical biological processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
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Abstract
The invention discloses a sleeve type microbial dye cell and artificial wetland coupling system suitable for the degradation of azo dyes. The system comprises a first water inlet pipeline, an anode area and a sleeve area which are arranged from bottom to top, wherein the anode area is positioned in an anaerobic environment, and an anode electrode is arranged in the anode area; the sleeve area comprises an outer sleeve area, an inner sleeve area and a cathode area; the cathode area is positioned in the inner sleeve area or the outer sleeve area, and a cathode electrode is arranged in the cathode area; the outer sleeve area is internally provided with a second water inlet pipeline; a water outlet area is arranged on the outer sleeve area. According to the sleeve type microbial dye cell and artificial wetland coupling system, water enters the system respectively through the anode area and the cathode area, so that the problem of electron competition between azo wastewater and the anode electrode is effectively reduced, the distance between an anode chamber and a cathode chamber is further shortened, the internal resistance of the system is reduced, and the power output of the system is increased. Furthermore, due to a sleeve structure, the dissolved oxygen concentration of the cathode area is increased; therefore, the chemical oxygen demand (COD) and the by-product concentration in the effluent are effectively reduced, and the power output and the effluent quality are further improved.
Description
Technical field
The invention belongs to the energy and water treatment field, be specifically related to a kind of micro-life of sleeve type being applicable to Degradation of Azo Dyes
Thing dye cell and artificial swamp coupled system.
Background technology
In recent years, along with the raising of people's quality of the life, printing and dyeing develop rapidly with dye industry, the quantity of dyestuff and product
Plant and constantly increase, dyeing waste water the environmental pollution caused is the most serious.It is reported, during producing and using, about
The dyestuff of 20% ~ 30% is released in environment (Babu B R, Parande A K, Raghu Set al. Cotton textile
Processing:Waste generation and effluent treatment [J] .J Cotton Sci, 2007,11:
141.153.).The features of pollution of azo dye is that contaminant capacity is big, even if concentration is the lowest, it is possible to so that the light transmittance of water body reduces,
The broken ecosystem changing water body, and the aromatic amine compounds that azo dye decomposes out has potential carcinogenecity to human body.
Azo dye Stability Analysis of Structures, has antiacid, alkali resistant, antimicrobial and the characteristic such as anti-light, can be detained in the environment for a long time,
Therefore there is long-term harm (Estevam V S, Jorge M V. liquid-phase hydrogenation of
benzene to cyclohexene catalyzed by Ru/SiO2 in the prensence of water-organic
mixtures [J].Catalysis Communication,2003,4:1-96)。
Microbiological fuel cell (MFC) technology is widely developed in recent years due to novelty and environmental benefit.And,
Research finds that azo dye can be degraded in MFC, reclaims electric energy simultaneously.At the anode of MFC, Organic substance is micro-in electrochemistry
Aoxidizing under biological effect, the electron transmission of oxidation to anode, is transmitted Zhiyin by external circuit by electrochemistry microorganism further
Pole thus produce electric current.Meanwhile, proton is transferred to negative electrode by ion exchange membrane and is combined with azo dye and electronics, so that
Azo bond ruptures, the aromatic amine material of dye decolored generation bio-degradable (Frijters C T M J, Vos R H,
Scheffer G, et al Decol-orizing and detoxifying textile wastewater, containing
Both soluble and insoluble dyes, in a full scale combined anaerobic/aerobic
System ［ J ］ .Water Research, 2006,40 (6): 1249-1257).
Artificial swamp (CW) is due to the effect of self structure, substrate and plant so that the not coordination of CW built-in system
Being equipped with different oxidation-reduction potentials, this characteristic of CW system makes it couple with microbiological fuel cell to become a reality.
Artificial swamp stromal surface perches a large amount of microorganism, and the decolored degradation for azo dye has established good biological basis.People
Work wetland surface kind has well developed root system, secretes oxygen emergent aquactic plant of good performance, and the degraded for aromatic amine material provides well
Aerobic environment.System after coupling has widened the kind of artificial wetland treatment pollutant, increases the process rule of MFC system simultaneously
Lattice.
Existing coupled system, when processing azo dye, takes the Co metabolism pattern with glucose as carbon source.Containing even
Adding glucose in the waste water of nitrogen dyestuff, this mixed solution enters the anode region of coupled system via peristaltic pump and decolours
Reaction；The decolouring of 54.91% azo dye occurs at anode region, and cathode zone is only the glucose in 1.71%, and water inlet
Carrying out that concentration is reacted along with Azo dye decol and decrease (Performance of microbial fuel cell
coupled constructed wetland system for decolorization of azo dye and
bioelectricity generation).It follows that enter aqueous humor glucose to be primarily involved in the fracture of azo bond, only have portion less
Divide and utilized by product electricity bacterium.
Muetal finds to add acid orange 7 as electron acceptor at negative electrode, it is possible to achieve 501 ± 6 g/ (m3 d1)
Percent of decolourization (Decolorization of azo dyes in bioelectrochemical systems. Environ.
Sci. Technol. 43, 5137–5143.)。
Liu et al finds methyl orange, orange alpha-naphthol double-chamber fuel cell negative electrode be successfully realized decolored degradation (Liu,
L., Li, F.B., Feng, C.H., Li, X.Z., 2009. Microbial fuel cell with an azo-
dye-feeding cathode. Appl. Microbiol. Biotechnol. 85, 175–183.)。
The spacing of CW-MFC system Anodic and negative electrode can affect the internal resistance of system thus change the electricity generation performance of system.
Electrode spacing is adjusted to 10,20,30 and 40cm by Li Xianning et al. respectively, test result indicate that the increasing producing electricity with electrode spacing
Add first to rise and decline afterwards.When electrode spacing is 20cm, system COD clearance, power density, coulombic efficiency all reach the highest
Value, according to the internal resistance of the range of linearity estimating system of polarization curve, when electrode spacing is 20cm, system internal resistance is minimum.With
Yoong-Ling Oon of sample et al. research find coulombic efficiency reduce with the increase of electrode spacing (microbiological fuel cell-
Artificial swamp coupled system progress).
Traditional coupled system is when processing containing azo dye wastewater, and anode region is main bleaching section.In water
Carbon source anode region degraded produce substantial amounts of electronics, the azo dye of anode region all can be subject to as electronics with its electrode
Body, experimental studies results shows the decolouring for azo dye of most of electronics, and only small part electronics participates in producing electricity；Work as azo
Dye decolored occasion occurs when cathode zone (for anaerobic environment), and azo dye accepts to complete decolouring from the electronics of anode,
Reduce the output producing electricity that the electronics with anode electrode is competed and improved whole system.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to provide a kind of sleeve type being applicable to Degradation of Azo Dyes
Microbial dye battery and artificial swamp coupled system, this system further increases the fall of azo dye while improving electricity
Solve efficiency.
For solving prior art problem, the technical scheme that the present invention takes is:
A kind of sleeve type microbial dye battery being applicable to Degradation of Azo Dyes and artificial swamp coupled system, including by lower
On the first inlet channel, anode region and sleeve section, described anode region is in anaerobic environment, is provided with in anode region
Anode electrode, described sleeve section includes urceolus region, higher than the inner core region in urceolus region and cathode zone, described cathode chamber
Territory is positioned at cylinder region in or beyond inner core region, is provided with cathode electrode in described cathode zone, is provided with in described urceolus region
Two inlet channels, urceolus region is provided with and outlet area.
As improving, at least provided with 1 outlet pipe in described outlet area.
As improving, between described anode region and sleeve section, it is provided with the first cobblestone layer, the first cobblestone layer
Thickness be 50mm, be provided with the second cobblestone layer between described urceolus region and outlet area.
Improving further, the cobblestone particle diameter of described first cobblestone layer and the second cobblestone layer is 8-16mm.
As improving, filling activated carbon parcel anode electrode in described anode region, the thickness of described activated carbon is
60mm, particle diameter is 3-5mm, and described anode electrode is carbon-point.
As improving, described inner core region includes the 3rd cobblestone layer, cathode zone and covering the most successively
Layer, fills activated carbon parcel cathode electrode in described cathode zone, the thickness of described activated carbon is 210mm, and particle diameter is 3-5mm,
Plant on described cover layer and have emergent aquactic plant.
As improving, the thickness of the 3rd described cobblestone layer is 60mm, and the thickness of described cover layer is 200mm,
Covering layer material is haydite, and the particle diameter of described haydite is 5-8mm.
As improving, being filled with the haydite that thickness is 440mm in described urceolus region, the particle diameter of described haydite is 5-
8mm。
Beneficial effect
Coupled system of the present invention, by intaking negative electrode and anode region respectively, effectively reduces between dye wastewater and anode electrode
Electronics race problem, anode region water inlet is glucose solution, provides electronics and proton for negative electrode, and negative electrode water inlet is for containing azo
The waste water of dyestuff；Shorten the anode chamber and the cathode chamber spacing, group in minimizing system further, increase system charge output;The sleeve structure of system
Type increases cathode zone oxyty, effectively reduces COD content and by-product concentration in water outlet.Process at azo dye wastewater
On, after optimization, system more traditional single chamber coupled system is further improved in electricity output and effluent quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of coupled system of the present invention, and wherein, 1 is the first inlet channel, and 2 is anode region, and 3 are
Sleeve section, 4 is anode electrode, and 5 is urceolus region, and 6 is inner core region, and 7 is outlet area, and 8 is the second inlet channel, and 9 are
Cathode zone, 10 is the first cobblestone layer, and 11 is the second cobblestone layer, and 12 is the 3rd cobblestone layer, and 13 is cover layer, and 14 is cloudy
Pole electrode.
Detailed description of the invention
Embodiment 1
A kind of sleeve type microbial dye battery being applicable to Degradation of Azo Dyes and artificial swamp coupled system, including by lower
On the first inlet channel 1, anode region 2 and sleeve section 3, described anode region 2 is in anaerobic environment, anode region 2
Inside being provided with anode electrode 4, described sleeve section 3 includes urceolus region 5, higher than the inner core region 6 in urceolus region 5 and cathode electrode
9, described cathode electrode 9 is positioned at a region 5 in or beyond inner core region 6, is provided with the second inlet channel 8 in described urceolus region 5,
Urceolus region 5 is provided with and outlet area 7.Wherein, 4 outlet pipes it are provided with in outlet area 7；Anode region 2 and sleeve section 3
Between be provided with the first thick cobblestone layer 10 of 50mm, be provided with the second cobblestone layer between described urceolus region 5 and outlet area 7
11, and cobblestone particle diameter is 8-16mm；The activated carbon parcel anode electrode 4 of filling thickness 60mm, institute in described anode region 2
Stating activated carbon particle size is 3-5mm, and described anode electrode 4 is carbon-point；Described inner core region 6 includes thickness 60mm the most successively
The 3rd cobblestone layer 12, cathode zone 9 and be paved into, by the haydite that particle diameter is 5-8mm, the cover layer 13 that thickness is 200mm, described
In cathode zone 9, filling thickness is 210mm, and particle diameter is the activated carbon parcel cathode electrode 14 of 3-5mm, and described cathode electrode 14 is
Carbon-point, described cover layer 13 is planted and has emergent aquactic plant；Be filled with in urceolus region 5 thickness be 440mm particle diameter be the pottery of 5-8mm
Grain.
Embodiment 2
The water polluted by reactive brilliant red x-3b, wherein, reactive brilliant red x-3b is processed with acid orange 7 with the coupled system of embodiment 1
Being 100-300mg/L with the concentration of acid orange 7, glucose as co-metabolic substance, the concentration of the glucose in water inlet is
120mg/L。
Reactive brilliant red x-3b chemical constitution:
Acid orange 7 chemical constitution:
Coupled system runs: the water inlet containing glucose is pumped into coupled system, containing azo by peristaltic pump from the first inlet channel 1
The waste water of dyestuff pumps into inner core sections bottom, anode electrode 4 and cathode electrode 14 via peristaltic pump from the second inlet channel to be passed through
External wire couples together, and the outer meeting resistance of external circuit is 1000 ohm.The anode region major function of native system is for for cloudy
Territory, polar region provides electronics and proton, and both materials have product electricity bacterium consumption of glucose gained, and electronics passes through water by wire, proton
Flow to reach negative electrode, accept the electronics from anode and proton at cathode zone azo dye as electron acceptor, complete self
Construct a full current loop while decolored degradation and export certain electricity.
From result, process sewage with coupled system of the present invention, the percent of decolourization of azo dye and COD clearance all up to
More than 90%, coupled system voltage export relatively legacy system and have a rising of about 5% ~ 8%, but acid orange 7 in electricity output
It is better than reactive brilliant red x-3b.
Claims (8)
1. being applicable to sleeve type microbial dye battery and the artificial swamp coupled system of Degradation of Azo Dyes, its feature exists
In, including the first inlet channel (1) from bottom to top, anode region (2) and sleeve section (3), described anode region (2) is in
In anaerobic environment, being provided with anode electrode (4) in anode region (2), described sleeve section (3) include urceolus region (5), higher than outward
The inner core region (6) of cylinder region (5) and cathode zone (9), described cathode zone (9) is positioned at cylinder district in or beyond inner core region (6)
In territory (5), it is provided with cathode electrode (14) in described cathode zone (9), in described urceolus region (5), is provided with the second inlet channel
(8), urceolus region (5) are provided with and outlet area (7).
A kind of sleeve type microbial dye battery being applicable to Degradation of Azo Dyes the most according to claim 1 and Manual moist
Ground coupled system, it is characterised in that at least provided with 1 outlet pipe in described outlet area (7).
A kind of sleeve type microbial dye battery being applicable to Degradation of Azo Dyes the most according to claim 1 and Manual moist
Ground coupled system, it is characterised in that be provided with the first cobblestone layer (10) between described anode region (2) and sleeve section (3), the
The thickness of one cobblestone layer (10) is 50mm, is provided with the second cobblestone layer between described urceolus region (5) and outlet area (7)
(11).
A kind of sleeve type microbial dye battery being applicable to Degradation of Azo Dyes the most according to claim 3 and Manual moist
Ground coupled system, it is characterised in that the cobblestone particle diameter of described first cobblestone layer (10) and the second cobblestone layer (11) is
8-16mm。
A kind of sleeve type microbial dye battery being applicable to Degradation of Azo Dyes the most according to claim 1 and Manual moist
Ground coupled system, it is characterised in that fill activated carbon parcel anode electrode (4) in described anode region (2), described activated carbon
Thickness is 60mm, and particle diameter is 3-5mm, and described anode electrode (4) is carbon-point.
A kind of sleeve type microbial dye battery being applicable to Degradation of Azo Dyes the most according to claim 1 and Manual moist
Ground coupled system, it is characterised in that described inner core region (6) includes the 3rd cobblestone layer (12), cathode chamber the most successively
Territory (9) and cover layer (13), fill activated carbon parcel cathode electrode (14), the thickness of described activated carbon in described cathode zone (9)
Degree is 210mm, and particle diameter is 3-5mm, and upper kind of described cover layer (13) has emergent aquactic plant.
A kind of sleeve type microbial dye battery being applicable to Degradation of Azo Dyes the most according to claim 6 and Manual moist
Ground coupled system, it is characterised in that: the thickness of the 3rd described cobblestone layer (12) is 60mm, the thickness of described cover layer (13)
For 200mm, covering layer material is haydite, and the particle diameter of described haydite is 5-8mm.
A kind of sleeve type microbial dye battery being applicable to Degradation of Azo Dyes the most according to claim 1 and artificial coupling
Assembly system system, it is characterised in that be filled with the haydite that thickness is 440mm, the particle diameter of described haydite in described urceolus region (5)
For 5-8mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610879802.3A CN106315858A (en) | 2016-10-09 | 2016-10-09 | Sleeve type microbial dye cell and artificial wetland coupling system suitable for degradation of azo dyes |
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| CN201610879802.3A CN106315858A (en) | 2016-10-09 | 2016-10-09 | Sleeve type microbial dye cell and artificial wetland coupling system suitable for degradation of azo dyes |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516563A (en) * | 2018-11-22 | 2019-03-26 | 中电环保股份有限公司 | Electrode strengthens high-efficiency artificial wetland and the sewage water treatment method based on artificial swamp |
| CN111505068A (en) * | 2020-04-01 | 2020-08-07 | 中国科学院水生生物研究所 | Biosensor method and device for monitoring COD concentration in constructed wetland in real time |
| WO2022168121A1 (en) * | 2021-02-08 | 2022-08-11 | Council Of Scientific & Industrial Research | Earthen membrane based two chambered constructed wetland cum micriobial fuel cell for treatment and detoxification of waste water containing azo dye |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951056A (en) * | 2014-05-20 | 2014-07-30 | 哈尔滨工业大学 | Treatment device capable of intensifying degrading of wastewater containing azo dyes by microbial electric auxiliary system and water treatment method |
| CN105712484A (en) * | 2016-04-28 | 2016-06-29 | 河海大学 | CW-MFC coupling system for azodye degradation and degradation method thereof |
| CN105948221A (en) * | 2016-06-22 | 2016-09-21 | 安徽师范大学 | Dyeing wastewater treatment device and method for treating wastewater by using device |
-
2016
- 2016-10-09 CN CN201610879802.3A patent/CN106315858A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951056A (en) * | 2014-05-20 | 2014-07-30 | 哈尔滨工业大学 | Treatment device capable of intensifying degrading of wastewater containing azo dyes by microbial electric auxiliary system and water treatment method |
| CN105712484A (en) * | 2016-04-28 | 2016-06-29 | 河海大学 | CW-MFC coupling system for azodye degradation and degradation method thereof |
| CN105948221A (en) * | 2016-06-22 | 2016-09-21 | 安徽师范大学 | Dyeing wastewater treatment device and method for treating wastewater by using device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516563A (en) * | 2018-11-22 | 2019-03-26 | 中电环保股份有限公司 | Electrode strengthens high-efficiency artificial wetland and the sewage water treatment method based on artificial swamp |
| CN111505068A (en) * | 2020-04-01 | 2020-08-07 | 中国科学院水生生物研究所 | Biosensor method and device for monitoring COD concentration in constructed wetland in real time |
| CN111505068B (en) * | 2020-04-01 | 2021-07-30 | 中国科学院水生生物研究所 | Biosensor method and device for monitoring COD concentration in constructed wetland in real time |
| WO2022168121A1 (en) * | 2021-02-08 | 2022-08-11 | Council Of Scientific & Industrial Research | Earthen membrane based two chambered constructed wetland cum micriobial fuel cell for treatment and detoxification of waste water containing azo dye |
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Application publication date: 20170111 |