316 results about "Microbial fuel cell" patented technology

Improved performance ion exchange membranes for use in REM, AEM and DMFC fuel cells, buffered fuel cells, hydrolysis, other applications comprise a molecular matrix of homopolymers, di-monomer, heteropolymers, copolymers, or block-polymers of fluorocarbon and hydrocarbon compounds combined with (i) skeletal support grid to improve durability, handling, reduce membrane swelling, and sequester dopants and nanoparticles from leakage; (ii) microporous membrane formed using a sacrificial filler process enhancing conductivity and limiting fuel crossover; (iii) hetero-ionomeric matrix of two-or-more membrane-bound acids e.g. sulphonic and phosphonic acid expanding usable range; (iv) permanent fillers enhancing conductivity and porosity including nanoparticles, metal-oxides, zeolites, silicates, GOs, CNTs, MOFs, POSS, and others; (v) ionic liquid doping to enhance membrane conductivity; (vi) membrane nanocoating preventing H2O2 diffusion; and / or (vii) catalytic nanocoating with metals, metal-oxides, and MOFs preventing atmospheric toxin catalyst poisoning. Combined with a heterogenous GDI, the IEM is integrated into iBFC power blade and energy bank applications.

The invention provides a low-cost metal modified electrode material, a preparation method and application, solves the problems that a carbon nitride material is difficult to recover and poor in sustainability, and improves the photoelectrocatalysis capability of an active carbon material. Further constructing a packed bed cathode coupled microbial fuel cell system; the treated industrial wastewater is high-salt coking wastewater from Anshan steel, a PEC-MFC system filled with electrogenesis microorganisms is used for realizing wastewater recycling and harmlessness, and energy-saving, high-efficiency and one-step treatment of the industrial wastewater is completed.

The invention discloses a multistage sewage treatment device and method combining biological treatment and electro-Fenton, and relates to the field of water pollution control, the device is composed of a three-chamber microbial fuel cell reactor, and the three-chamber microbial fuel cell reactor is sequentially composed of a microbial anode chamber, an electro-Fenton cathode chamber and a photosynthesis chamber from left to right. The biological anode chamber consists of filled anaerobic granular sludge and a carbon brush electrode serving as an electron collector; and the core structure of the electro-Fenton cathode chamber is a gas diffusion cathode loaded with nano FeCo2O4. The microbial anode chamber and the electro-Fenton cathode chamber are isolated by a proton exchange membrane, and the gas diffusion electrode separates the electro-Fenton cathode chamber and the photosynthesis chamber at the same time. According to the invention, the combination of two clean energy sources, namely microbial energy and light energy, is realized, the efficient removal capability of aerobic and anaerobic biological treatment technologies and the synergistic mechanism of microorganisms and algae for purifying sewage are combined, the efficiency of the microbial fuel cell is further optimized, and the removal of ammonia nitrogen and refractory organic pollutants in the sewage is realized.

The invention discloses a sulfur autotrophic denitrification filter material enhanced constructed wetland microbial fuel cell sewage treatment system and method, and the treatment system comprises a container main body, the container main body sequentially comprises a gravel water distribution layer, a granular activated carbon anode layer, a sulfur autotrophic denitrification filter material layer, a middle gravel layer, a granular activated carbon cathode layer and a wetland plant layer from bottom to top, anodes are embedded in the granular activated carbon anode layer, cathodes are embedded in the granular activated carbon cathode layer, and the wetland plant layer is arranged in the middle gravel layer. A lead penetrates through the granular activated carbon anode layer and the granular activated carbon cathode layer to connect the anode with the cathode, a water inlet is formed in the gravel water distribution layer, and a water outlet is formed in the wetland plant layer. The constructed wetland microbial fuel cell and the sulfur autotrophic denitrification technology are combined, the dual effects of pollutant removal and electric energy generation are achieved, a new thought is provided for combination of the constructed wetland microbial fuel cell and the sulfur autotrophic denitrification technology, and meanwhile, a new direction is provided for removal of river sewage.

The invention discloses a humic acid mediated light-microbial electro-Fenton method for degrading pollutants in sludge. The method comprises the following steps: constructing a double-chamber microbial fuel cell; a biological reaction raw material is added into the anode chamber of the double-chamber microbial fuel cell, and the biological reaction raw material can generate biological reaction to release electrons; adding sludge containing pollutants, humic acid and ferrous ions into a cathode chamber of the double-chamber microbial fuel cell; the anode and the cathode of the microbial fuel cell are connected under the illumination condition, so that a reaction is carried out in the cathode chamber, and pollutants in the sludge are degraded. According to the method, the pollutants in the sludge are degraded by adopting a humic acid mediated light-microbial electro-Fenton method, so that on one hand, a Fenton reaction is promoted to generate a large number of free radicals with relatively strong oxidizing capacity to promote degradation, and on the other hand, growth and metabolism of hosts of the pollutants in the sludge are inhibited to reduce abundance of the pollutants; the synergistic effect of the two can effectively improve the degradation effect.

The invention discloses a constructed wetland microbial fuel cell coupling device based on a novel three-dimensional electrode, and belongs to the technical field of sewage treatment, the device comprises a shell, and a bottom layer, an anode layer, a middle layer and a cathode layer are sequentially arranged in the shell from bottom to top. Wherein the bottom layer is filled with coarse gravels, and the middle layer is filled with fine gravels; the anode layer consists of a plurality of titanium tubes which are horizontally arranged and a titanium mesh for connecting the titanium tubes in parallel; openings are formed in the two ends of the titanium tube, through holes are formed in the titanium tube in an array mode, and the titanium tube is filled with a graphite felt core formed in a curled mode. The graphite felt core body can be used for a conductive material strengthening process and can also be used as a supporting material, and compared with an anode cage structure formed by a stainless steel net, the bearing strength is higher; the resistance of the metallic titanium is lower than that of the stainless steel mesh, so that electron transmission and improvement of electron transfer efficiency are facilitated, and the energy recovery efficiency and pollutant removal efficiency of the constructed wetland microbial fuel cell coupling device can be effectively improved.

The invention relates to the technical field of sewage treatment and resource utilization, in particular to a sludge treatment system with an integrated microbial fuel cell and a treatment method of the sludge treatment system. A first cathode plate matched with the sludge compression chamber is arranged at the other end in the sludge compression chamber in a sliding mode, a driving mechanism used for driving the first cathode plate to be close to or away from the first anode plate is arranged on the sludge compression chamber, and a sludge discharge port is formed in the lower portion of the sludge compression chamber. The chlorine salt and the tannic acid are added into the sludge in the pretreatment barrel, the chlorine salt is used for improving the electrochemical wall breaking effect of the sludge, the tannic acid is used for improving the dewatering performance of the sludge and reducing the hydrothermal dewatering temperature, the chlorine salt and the tannic acid are mixed in the pretreatment barrel and then enter the fuel tank for chemical reaction, electric energy is generated, and electric power is provided for the storage battery; the microorganisms can degrade organic matters in the sludge.

The invention discloses a microbial fuel cell coupling system for industrial wastewater treatment and energy regeneration, and the system comprises a wastewater treatment and energy conversion module which is used for introducing industrial wastewater into a microbial fuel cell, realizing efficient decomposition of organic matters under the metabolism effect of microbiota in an anode chamber, generating purified water reaching the standard, and recovering clean energy; the intelligent parameter control module is used for dynamically adjusting operation parameters of each unit through an MLP model; and the dynamic monitoring feedback module carries a high-precision sensor array and an internet-of-things transmission device, acquires parameters in the fuel cell in real time, provides a predictive regulation and control strategy for the system by applying an MLP model, and forms closed-loop optimization through an energy-material-information three-flow coupling mechanism. Through cooperative work of all the modules, efficient and stable operation of the system is achieved, the prospect in the field of industrial wastewater treatment is wide, the resource utilization efficiency can be remarkably improved, and the cost is reduced.

The invention belongs to the technical field of microbial fuel cells, and particularly relates to a microbial fuel cell, a carbon-based anode and a preparation method of the carbon-based anode. Preparing a polyaniline / dopamine modifier from an aniline monomer and dopamine hydrochloride, and modifying the polyaniline / dopamine modifier on a carbon felt electrode to form a PANI-DA / CF anode; the preparation method comprises the following steps: preparing flower-like Fe2O3 nanoparticles by adopting a hydrothermal method, and electrochemically depositing the flower-like Fe2O3 nanoparticles on a PANI-DA / CF electrode to prepare a Fe2O3 / PANI-DA / CF anode; according to the microbial fuel cell disclosed by the invention, the maximum power density of the phenol wastewater anolyte reaches 4594 + / -97 mW / m < 2 > and is improved by 83.1% compared with that of a carbon felt anode MFC (Microbial Fuel Cell); after operation for 96 hours, the phenol degradation rate reaches 99.4%; and the electricity generation performance is still kept stable after three months of operation. The Fe2O3 / PANI-DA / CF anode provided by the invention improves the power density output of the microbial fuel cell and the wastewater treatment efficiency.

The invention discloses a sediment microbial fuel cell sensor and method for monitoring methane emission. The sediment microbial fuel cell sensor comprises an anode, an external resistor, a reference electrode, a reference electrode chamber, a data collector and a monitoring terminal, the anode is buried in wetland bottom mud and is connected in series with the external resistor and the reference electrode; the reference electrode chamber floats in overlying water of wetland bottom mud, the reference electrode chamber is of a hollow cylindrical structure with an open bottom and a sealed top, the bottom of the reference electrode chamber is isolated from the overlying water by adopting a proton exchange membrane, an electrolyte solution is filled in the reference electrode chamber, and the reference electrode penetrates through the top of the reference electrode chamber and is inserted into the electrolyte solution; the external resistor is connected in parallel with a data collector, and the data collector sends collected electric signals to a monitoring terminal. Based on existing researches, the number of electrogenic bacteria in soil and the number of methanogens are found to have high correlation, so that the voltage of the sediment microbial fuel cell can be used as a monitoring index for monitoring the methane emission flux of the methanogens.

The invention provides a pulsating anaerobic microorganism multi-phase fluidized bed hydrogen-electricity combined supply system and a use method, and belongs to the technical field of sewage treatment. The system comprises a constant-temperature liquid storage tank, an anode chamber, a hydrogen production reaction chamber and other key components, and smooth flowing of liquid and gas is achieved through pipeline connection. In order to improve the reaction efficiency, key components such as a distributor, a particle confinement network and a bubble generator are arranged in the system. According to the system, microorganisms such as escherichia coli and shewanella are inoculated to form an efficient biological membrane, and a nano Fe3O4 microbial membrane is added. The system combines pulsation and stable liquid flow, efficiency is improved, and energy consumption is reduced. And the electric energy of the microbial fuel cell is introduced into the hydrogen production reaction chamber and the super capacitor, so that the electric energy is utilized and recycled. And meanwhile, the monitoring computer and the water quality detector are used for monitoring the generated voltage and water quality in real time. Chemical energy in sewage can be fully utilized, the energy conversion efficiency is improved, application with higher requirements is met, and meanwhile the reaction energy consumption is low.

The invention belongs to the technical field of new energy materials and bioelectrochemistry, and particularly relates to an iron-based multi-metal sulfide composite carbon anode material and a preparation method of the iron-based multi-metal sulfide composite carbon anode material. The preparation method is simple in process flow, convenient to operate, easy for large-scale production, wide in raw material source, low in cost and environment-friendly, and can be used for preparing the three-dimensional porous carbon matrix which is formed by foaming and carbonizing polyvinylpyrrolidone and is provided with interconnected carbon nanosheets. Through reasonable composition design and structural regulation, and optimization of metal ratio and vulcanization conditions, accurate regulation of material performance can be realized, electrochemical performance and biocompatibility are significantly improved, electricity generation performance and operation stability of a microbial fuel cell are improved, and good industrial application prospects are achieved.

A power generating device and a power supplying method thereof are provided. The power generating device includes a battery set, a charge storage device, a charger and a voltage converter. The battery set has microbial fuel cell and / or solar battery, and is configured to generate a supply voltage. The charger generates a charging voltage according to the supply voltage, and provides the charging voltage through a first resistor to charge the charge storage device. The voltage converter converts a storage voltage provided by the charge storage device to generate a driving voltage, and provides the driving voltage to drive a load.

The invention discloses a nitrogen / boron-doped non-noble metal-based material, a synthesis method thereof and application of the nitrogen / boron-doped non-noble metal-based material in a microbial fuel cell. According to the method, a carbon fiber brush is used as a substrate, urea and sodium borohydride are used as a nitrogen source and a carbon source respectively, and the nitrogen / boron doped non-noble metal-based material is synthesized through a hydrothermal method. The electrostatic interaction between graphene oxide and FeCoNi-LDH is utilized to realize tight combination, so that FeCoNi-LDH nanosheets are uniformly dispersed on the surface of the carbon fiber brush, and the problems that LDHs are easy to agglomerate and poor in conductivity are solved; in the boron / nitrogen co-doping process, an efficient electron transmission channel is constructed by adjusting the electronic structure of the composite material, and the material is endowed with excellent electron transmission capability and oxygen reduction performance. In an MFC (Microbial Fuel Cell) test constructed by taking a nitrogen / boron-doped non-noble metal-based material as a cathode, the output voltage and the maximum power density are several times of those of commercial Pt / C and a blank carbon fiber brush, and the carbon fiber brush has a wide application prospect in the field of microbial fuel cells.

The utility model discloses a garbage biogas gasification treatment device capable of generating electricity, which relates to the technical field of garbage treatment equipment and comprises a reaction chamber, two conductive parts and a resistor or an energy storage element, a low-oxygen or oxygen-free environment can be kept in the reaction chamber, and a liquid inlet, a liquid outlet, a gas outlet and two fixing ports are arranged on the reaction chamber; the two conductive parts respectively extend into the reaction chamber through the two fixing ports to form two electrodes; the resistor or the energy storage element is arranged outside the reaction chamber; the resistor or the energy storage element is electrically connected with the two conductive pieces and enables the two electrodes to respectively form an anode and a cathode. According to the device, a microbial fuel cell and an anaerobic fermentation process are integrated in one set of device, so that the microbial fuel cell and the anaerobic fermentation process are highly and effectively integrated, the removal rate of organic matters in garbage is high, the occupied space is small, the proportion of CH4 in biogas is high, and electric energy is generated.

The invention discloses a method for monitoring acid-alkali wastewater by using a sediment microbial fuel cell sensor matrix, which comprises the following steps of: arranging the sediment microbial fuel cell sensor matrix in a water body to be detected, and recording the voltage, the conductivity and the dissolved oxygen of each sediment microbial fuel cell sensor in real time and on line through a monitoring terminal; the pH value of the water body at the monitoring position of each sediment microbial fuel cell sensor is calculated through a formula, and a heat map is drawn to display the dynamic change of the pH along with time, so that the diffusion range of the acid-alkali wastewater is monitored, and pollutants are traced. According to the method, the pH and the diffusion range of the sewage can be remotely monitored online in real time, the source tracing of acidic and alkaline sewage is realized, the monitoring result is intuitively presented in a dynamic heat map form, the sensor is light, the labor is saved, the cost is low, and the monitoring process is pollution-free.

The invention relates to the technical field of wastewater treatment, in particular to a wastewater treatment system and a wastewater treatment method, which realize a closed-loop system of'wastewater treatment-energy recovery-resource regeneration 'cooperative treatment by combining a microbial fuel cell with a sludge pyrolysis technology. According to the system, organic matters in wastewater are converted into electric energy by utilizing a microbial fuel cell system, meanwhile, the concentration of pollutants is reduced, generated sludge is subjected to two-stage pyrolysis after being subjected to dehydration pretreatment to prepare biochar, the biochar can be used for soil improvement, water purification and the like, and synthesis gas generated by pyrolysis is used for power generation to supplement energy consumption of the system. The resource utilization rate is effectively increased, the sludge yield is reduced, the treatment cost is reduced, and good environmental benefits and economic benefits are achieved.

The invention discloses a method for enhanced removal of VOCs (volatile organic compounds) and synchronous power generation by a biological filter bed coupled microbial fuel cell system. According to the method, VOCs are introduced into a cathode chamber of a microbial fuel cell and then upwards penetrate through a filler layer of a fungus-bacterium coupled biological filter bed, in the stage, hydrophobic VOCs are adsorbed by fungal hyphae and then are aerobically degraded by bacteria to generate metabolic intermediates, hydrophilic VOCs can be directly degraded by aerobic bacteria, the purified VOCs are discharged from the top, and the purified VOCs are discharged from the bottom of the microbial fuel cell. Hydrophilic VOCs and metabolic intermediates which are not degraded in time can enter an anode chamber of the microbial fuel cell along with the nutrient solution, and the hydrophilic VOCs and the metabolic intermediates are further degraded as power generation substrates and generate electrons (e <->). According to the invention, the fungus-bacteria mixed biological filter bed is coupled with the microbial fuel cell system for treatment, so that enhanced removal is realized, and high-efficiency power generation is also realized.

The invention discloses a preparation method of a layered double hydroxide combined cobalt disulfide and nickel tetrasulfide combined multi-walled carbon nanotube catalyst, which comprises the following steps: firstly, preparing cobalt disulfide and nickel tetrasulfide combined multi-walled carbon nanotubes through a two-step hydrothermal method; and then successfully preparing the ferro-nickel layered double hydroxide and nickel dicobalt tetrasulfide combined multi-walled carbon nanotube. The invention also discloses an application of the ferro-nickel layered double hydroxide and nickel dicobalt tetrasulfide combined multi-walled carbon nanotube as a microbial fuel cell cathode catalyst. The prepared material has higher porosity, more reaction sites, better electrochemical stability and higher conductivity, so that when the material is used as a cathode catalyst of the microbial fuel cell, the efficiency of electric ion flow is improved, the stability of electrode circulation and the power generation efficiency are ensured, and the performance of the microbial fuel cell is improved.

The invention discloses a constructed wetland microbial fuel cell coupled photocatalytic system for treating fluorine-containing caprylic acid wastewater, and relates to a constructed wetland microbial fuel cell coupled photocatalytic system. The invention aims to solve the problem that CW-MFC and photocatalysis are not combined to improve the removal rate of PFOA at present. The device comprises a reactor shell, a bottom filler layer, an anode region, a middle filler layer, a cathode region, wetland plants and an outer resistor, the bottom packing layer, the anode region, the middle packing layer and the cathode region are sequentially overlapped in the reactor shell from bottom to top, the cathode region loaded with a photocatalyst is connected with the anode region through an external resistor to form a circuit, a water inlet is formed in the lower part of the reactor shell, and a water outlet is formed in the upper part of the reactor shell. And the roots of the wetland plants penetrate through the cathode region and are planted in the middle filler layer. The invention belongs to the technical field of perfluorinated compound pollution remediation.

The present disclosure provides a copper-metal organic framework anchored Cu foil (Cu-MOF / Cu-Foil) anode for a Microbial Fuel Cell (MFC), wherein the MFC uses a Cu foil cathode wherein the MFC helps in hexavalent Chromium (Cr (IV)) bioremediation, and power generation The Cu-MOF gets transformed to Cu2O nanoflowers in-situ under the operation conditions of MFC, which extends the electrocatalytic activity and stability. The MFC achieves bioremediation of 26 mg / l of Cr (VI) within a day, and the complete bioremediation within 5 days. The open circuit voltage (OCV), current density, and power density of the MFC are 0.983 V, 800 to 1027 mA / m2, and 980 to 1049 mW / m2 respectively. The coulombic efficiency attained by the MFC is 39.2% whereas the energy efficiency of the MFC is 35.42%. A method of preparation of the Cu-MOF / Cu-Foil anode is provided.

The invention relates to the technical field of sewage treatment, and discloses a sewage biotoxicity detection system. The system comprises a reaction module, a detection module and a data processing module, the reaction module, the detection module and the data processing module are connected in sequence; the reaction module is used for providing a metabolic environment for the sewage to be detected and nitrifying bacteria; the detection module is used for detecting activity data in a metabolic environment; the activity data comprises at least one of ammonia nitrogen concentration, microbial fuel cell current and active oxygen fluorescence signal intensity; and the data processing module is used for determining the toxicity of the sewage to be detected based on the activity data. According to the present invention, with the nitrifying bacteria as the indicator organism of the sewage toxicity, the accurate evaluation of the sewage biological toxicity is achieved based on the detected multi-dimensional activity data such as the ammonia nitrogen concentration, the microbial fuel cell current, the active oxygen fluorescence signal intensity and the like.

The invention discloses a microbial fuel cell with a conductive dynamic membrane separator and application of the microbial fuel cell. The microbial fuel cell comprises a reaction chamber, a conductive dynamic membrane separator is arranged in the reaction chamber, the conductive dynamic membrane separator divides the reaction chamber into a cathode chamber and an anode chamber, and the conductive dynamic membrane separator is electrically connected with the cathode chamber or the anode chamber; the conductive dynamic membrane separator sequentially comprises a dynamic membrane, a metal power collection net and an oxygen isolation layer from inside to outside, the dynamic membrane comprises a frame material and a basement membrane, the frame material is used for supporting the basement membrane, and the basement membrane is made of a conductive porous material. The metal power collection net serves as a framework, the supporting function is achieved, and the power collection function is achieved. The ingenious design of the fuel cell structure in the scheme of the invention not only significantly improves the effluent quality and the oxygen isolation effect, but also reduces the manufacturing cost of the exchange membrane, and shows wide application potential in the fields of sewage treatment and reclaimed water reuse.

The invention relates to a polling type microbial fuel cell energy collection device with multichannel independent maximum power tracking, which takes a microbial fuel cell as an energy source and performs independent maximum power point tracking on each microbial fuel cell accessed into a system by using a polling working mode. Therefore, the overall output power of the microbial fuel cell is improved, and the conversion efficiency is improved.

This invention discloses a CO2 direct air capture system and method for increasing CO2 partial pressure. The system includes a first air pump, a second air pump, a microbial fuel cell device, a CO2 capture device, a rich liquid desorption unit, and a CO2 storage unit. The microbial fuel cell device includes a reactor housing, a proton exchange membrane, wires, and external circuitry. The first air pump is located outside the microbial fuel cell device and pumps ambient air into the cathode chamber. A jacket is provided outside the reactor housing to enclose the reactor housing. The CO2 capture device is a sealed housing with a liquid inlet, a liquid outlet, an air inlet, and an air outlet. The air outlet of the cathode chamber of the microbial fuel cell device is connected to the air inlet of the CO2 capture device via a pipe, and a second air pump is installed on the pipe. The rich liquid desorption unit includes a battery waste heat heating device and an electrically heated desorber. The CO2 storage unit includes a CO2 compressor and a CO2 storage container.

This invention discloses a bioelectrochemical denitrification system using a slow-release carbon source as the anode fuel, belonging to the field of microbial fuel cell technology. It comprises an anode chamber, a cathode chamber, an anode, a cathode, wires, and a separating membrane between the anode and cathode chambers. Electrochemically active microorganisms grow on the anode in the anode chamber, and anaerobic fermentation bacteria are present in the solution. An electrolyte and hydrogel particles with slow-release carbon function are added to the anode chamber. Electrochemically active denitrifying bacteria grow on the cathode in the cathode chamber. The hydrogel-released carbon serves as the solid fuel at the anode, providing a continuous electron donor to the cathode. Simultaneously, the selective permeation membrane controls the transmembrane transport of small organic molecules to the cathode, providing a carbon source for the denitrifying bacteria. The combined supply of electrons and carbon enhances denitrification by the denitrifying microorganisms at the cathode. This system is suitable for enhanced denitrification of polluted water bodies with low C / N ratios.

The invention belongs to the technical field of microbial fuel cells, and relates to preparation of a functional lignin-based biomass charcoal electrode prepared by flash evaporation Joule heat and performance research of the functional lignin-based biomass charcoal electrode. The lignin-based biomass material is subjected to one-step carbonization and functionalization by using a flash evaporation Joule heat technology. According to the preparation method, recycling of biomass waste and preparation of the microbial fuel cell anode are rapidly and efficiently completed, and the extracellular electron transfer rate between the material and microorganisms is effectively promoted through biocompatibility and capacitive performance of the microbial fuel cell anode. The method comprises the following steps: S1, preparing and pretreating ganoderma lucidum mushroom residues; s2, carrying out hydrothermal reaction on the treated ganoderma lucidum mushroom bran, and pre-carbonizing to obtain mushroom bran water carbon; s3, mixing mushroom bran water carbon and ferrocobalt metal salt in equal proportion to obtain a flash evaporation Joule heat precursor; s4, carrying out flash Joule heat treatment on the precursor to obtain ferrocobalt doped mushroom bran graphene; s5, preparing the cobalt-iron doped graphene as an anode material and assembling the microbial fuel cell; compared with an existing microbial fuel cell anode preparation method, the method has the advantages that recycling of lignin biomass waste and preparation of the microbial fuel cell anode are rapidly and efficiently completed, and the extracellular electron transfer rate between the material and microorganisms is effectively promoted through biocompatibility and capacitive performance of the lignin biomass waste.

A method of fabricating carbon quantum dots (CQDs) from camel hair using a bio-char synthetic approach. In an embodiment, the method comprises adding dried camel hair to water to provide a mixture; subjecting the mixture to a hydrothermal treatment in a hydrothermal reactor at a temperature of about 150° C. to about 250° C. for a period of time ranging from about 8 hours to about 13 hours to provide a product including camel-hair derived carbon quantum dots. The camel-hair derived carbon quantum dots can be an effective electrocatalyst in a microbial fuel cell for bioelectricity generation.

The invention discloses a method for monitoring water quality and enhancing pollutant removal performance by using an embedded CW-MFC (Carbon Wave-Microbial Fuel Cell), and belongs to a water environment treatment technology, the method comprises the following steps: embedding a CW-MFC system into a CW system, so that the effluent of the CW system can enter the CW-MFC system from the top of the CW system, and the effluent of the CW system entering the CW-MFC system and the self effluent of the CW-MFC system can be communicated with each other; after being converged at the bottom of the cathode layer of the CW-MFC system, the water is discharged from a water outlet of the CW-MFC system; constructing a fitting equation of coulombic efficiency and bottom inflow organic matter concentration of the CW-MFC system; and according to the fitting equation and the coulombic efficiency calculation formula, on the premise of obtaining the organic matter concentration of the effluent at the bottom of the cathode layer of the CW-MFC system, obtaining the organic matter concentration of the effluent at the bottom of the CW-MFC system. On the basis of the CW-MFC system, the CW-MFC system is embedded into the CW system, so that the pollutant removal performance of the CW system is improved, and meanwhile, the concentration of the organic matters in the inlet water at the bottom of the CW-MFC system is monitored by utilizing the relationship between the concentration of the organic matters in the inlet water and the coulombic efficiency presented by the system.

The invention provides a system driven by a microbial fuel cell and used for synergistically degrading antibiotics through photoelectrocatalysis. The system comprises a photoelectrocatalysis device and a microbial fuel cell system. According to the invention, a confinement packaging photo-anode + MFC self-driving + in-situ H2O2 production synergistic system is adopted, a green self-driving energy system is constructed, a double-chamber MFC is adopted to replace an external bias voltage, electricity is generated by using a microbial degradation photoelectrocatalysis intermediate product, a stable voltage (0.6-0.8 V) is output, the photoelectrocatalysis requirement is met, and no fossil energy is input in the whole process.