108 results about "Biofuel Cells" patented technology

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 belongs to the technical field of biological fuel cells, and particularly relates to an enzyme biological fuel cell system for detecting sugarcane pokkah boeng disease through three signals as well as a preparation method and application of the enzyme biological fuel cell system. The enzyme biological fuel cell system comprises an enzyme biological fuel cell and a photothermal conversion solution TiO2 (at) Au, the enzyme biological fuel cell comprises a biological anode, a biological cathode and an electrolyte, the biological anode is MWNT (at) ZIF-8 / AuNPs / GOD, and the biological cathode is an MWNT (at) ZIF-8 / AuNPs / DNA chain. According to the invention, false positive signals of detection results can be effectively calibrated; through combined use of three detection modes, high sensitivity, selectivity and real-time monitoring capability can be realized, and the method can be used for accurate detection of the sugarcane pokkah boeng rot.

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 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 discloses a method and a system for degrading RDX wastewater by using a microbial fuel cell, which are characterized in that three MFC devices (classical double-chamber, external photocatalysis combination and photo-anode MFC) are constructed, and TiO2 nanotube photocatalysis material preparation, gradient microbial acclimation and process optimization are combined, so that RDX efficient degradation and electric energy recovery are realized. The RDX molecular structure is destroyed through photocatalysis, and the toxicity is reduced; intermediate products are thoroughly mineralized through microbial metabolism; and the flora adaptability is enhanced by gradient domestication. The embodiment shows that the photo-anode MFC shortens the complete degradation time of the RDX to 7 days, and the electricity generation stability is remarkably improved. The method has high efficiency, economical efficiency and environmental friendliness, and is suitable for energy-containing wastewater treatment and resource utilization.

The present invention provides a conductive hydrogel and its derivatives, carbon nanomaterials, and enzyme bioelectrodes and their applications. The designed and synthesized conductive hydrogel and its derivatives can serve as electrolytes for flexible / rechargeable enzyme biofuel cells, ensuring ion conduction between the enzyme bioanode and enzyme biocathode while also serving as a fuel tank. Furthermore, the use of the hydrogel simplifies and facilitates the assembly of the biofuel cell, allowing the enzyme bioanode and enzyme biocathode to be directly pressed onto the sides of the hydrogel electrolyte plate, thereby eliminating the cumbersome battery assembly and packaging issues. The present invention uses a catalyst to activate asphalt to produce RADC and enzyme bioelectrodes prepared using RADC. The biofuel cell / capacitor hybrid biodevice assembled based on the conductive hydrogel electrolyte and enzyme bioelectrode outputs up to 0.64V OCP and 1.01μW·cm ‑2 It has the maximum power density and has high stability, excellent self-healing, ductility, adhesion, puncture resistance and plasticity.

The present invention relates to a device and method for controlling algae abundance in natural water bodies based on dual photosynthesis. The device is used to monitor and regulate the abundance of microalgae in the water body. The device comprises a photocatalytically coupled dual-chamber microalgae biofuel cell and a water quality monitoring sensor. The photocatalytically coupled dual-chamber microalgae biofuel cell comprises an anode chamber and a cathode chamber, which are connected by a connecting assembly. The anode chamber is equipped with a photocatalytic microalgae composite anode, a light source, and a stirring paddle, while the cathode chamber is equipped with a microalgae biocathode, algae liquid, and a stirring paddle. The connecting assembly includes a proton exchange membrane. One end of the water quality monitoring sensor is connected to the water body, and the other end is connected to the cathode chamber. The water quality monitoring sensor is used to monitor the abundance of microalgae in the water body and the cathode chamber. The device purifies natural river water and alleviates microalgae outbreaks in river water. The device can dynamically control the abundance of microalgae 24 hours a day.

This invention provides a fluidized bed multi-stage anaerobic process synergistic wastewater treatment and energy recovery system, belonging to the field of wastewater treatment and energy recovery. The system includes a pretreatment module for synergistic wastewater treatment via ultrasonic crushing and enzymatic hydrolysis, a dark fermentation module, an anaerobic digestion module, a microbial fuel cell module, a gas collection module for collecting gases generated by each module, an electrical energy regulation module for applying electrical energy generated by the microbial fuel cell to the dark fermentation and anaerobic digestion modules to form a non-uniform potential field, and a comprehensive regulation module for receiving detection signals and regulating the gas supply. The discharge end of the dark fermentation module is connected to the feed ends of both the anaerobic digestion and microbial fuel cell modules, forming two series paths: dark fermentation-anaerobic digestion-microbial fuel cell and dark fermentation-microbial fuel cell-anaerobic digestion. This invention achieves deep purification of wastewater and synergistic recovery of multiple forms of energy, including hydrogen, methane, and electricity.

The utility model relates to the technical field of environmental protection and new energy, and particularly discloses a microalgae-mediated power generation energy storage and sewage purification coupling device which comprises a microalgae sewage treatment mechanism and a microalgae biological fuel cell coupling mechanism assembled on one side of the microalgae sewage treatment mechanism, the microalgae sewage treatment mechanism comprises a supporting frame and a supporting seat, an S-shaped glass tube is fixedly mounted on the inner wall of the supporting frame, reflecting covers corresponding to the S-shaped glass tube are fixedly mounted at the front end and the rear end of the supporting frame, and a reactor is fixedly mounted at the top of the supporting seat; pollutants in sewage can be absorbed in the snakelike glass pipeline through microalgae to purify the sewage, meanwhile, the treated microalgae biomass is conveyed into the microalgae biofuel cell coupling mechanism, chemical energy is converted into electric energy, power can be generated in the sewage treatment process, and the sewage treatment efficiency is improved. Economical and efficient sewage purification and energy production are effectively realized.

The present application is directed to the problem of small specific surface area, low active site density and limited active material loading of the electrode surface of the conventional glassy carbon electrode, and provides a three-dimensional flexible carbon-based material and a preparation method thereof, comprising: weighing SEBS and adding it into a toluene solution to stir into a uniform solution; taking carbon nanotubes, graphene powder, graphite powder, sodium bicarbonate and white sugar and stirring uniformly; taking the toluene solution of SEBS, adding it into the mixed powder, adding toluene solution, stirring until mixed uniformly to obtain carbon slurry; taking the carbon slurry, transferring it into a corresponding mold for shaping, transferring the shaped slurry into anhydrous ethanol for soaking to solidify the carbon slurry; after the solidified carbon slurry material is dried, it is immersed into a hydrochloric acid solution to obtain a three-dimensional carbon-based material with a porous structure. The present application synthesizes a three-dimensional, porous, flexible and conductive carbon-based material, which is applied to a biological sensing electrode or a biological fuel cell to effectively increase the specific surface area and active material attachment sites of the electrode.

This invention discloses an anti-clogging biofiltration device coupled with a microbial fuel cell, applied in the field of biofiltration technology. It includes: a biofilter consisting of a porous media coarse filter layer, a cathode region, and an anode region arranged sequentially from top to bottom; a Helmholtz coil array deployed around the biofilter; and an external circuit that, together with the anode and cathode regions, constitutes the microbial fuel cell. The microbial fuel cell provides self-sufficient power to the cathode region, anode region, and Helmholtz coil array for anti-clogging biofiltration. This invention effectively solves the problems of accumulated clogging in EPS (expanded power filters) and the inability to clean the bottom filter media, and realizes self-generated electricity for the microbial fuel cell.

The invention discloses a preparation method of an AB-N-P-x microbial fuel cell (MFCs) air cathode catalyst, relates to a preparation and modification method of a microbial fuel cell cathode catalyst, and solves the problem of low electricity generation performance of an existing air cathode. The method comprises the following steps: pretreating straws by using melamine, KOH and KHCO3, then calcining in a programmable tubular furnace at 900 DEG C for 2 hours to obtain a black product, and pickling, washing and drying the black product in 1M hydrochloric acid. And putting NaH2PO4 into the upstream of a programmable tubular furnace, putting the dried black product into the downstream of the programmable tubular furnace, and calcining at 350 DEG C for 2 hours to complete the preparation of the AB-N-P-x microbial fuel cell cathode catalyst. According to the modified cathode catalyst obtained by the invention, through the synergistic effect of heteroatoms P and N, the performance of active sites is enhanced, and the electrode power generation efficiency is improved, so that the performance of the microbial fuel cell is improved.

The present application relates to the field of environmental management technology, and discloses a kind of emergent aquatic plant-sediment microbial fuel cell synchronous remediation water body method, comprising the following steps: S1, constructs emergent aquatic plant-SMFC coupling system, emergent aquatic plant-SMFC coupling system includes emergent aquatic plant and SMFC, SMFC includes anode electrode, modified cathode electrode and external resistance;Emergent aquatic plant is planted around anode electrode, so that anode electrode is contacted with bottom mud;S2, preparation modified cathode electrode, and the catalytic activity of cathode electrode is enhanced by electrochemical oxidation modification;S3, domestication electric active microorganism, emergent aquatic plant-SMFC coupling system is placed in room temperature domestication, and the electricity generation capacity of anode electrode is improved by introducing bottom mud rich in organic matter or exogenous inoculation microorganism;S4, start and run system, and the concentration change of chlorophyll a, ammonia nitrogen, total nitrogen and total phosphorus in water body is monitored in real time.The present application provides a kind of green, economic and efficient algal bloom water remediation technology, and is suitable for the ecological management of algal bloom water.

The application discloses a modified anode for a marine sediment microbial fuel cell and a preparation method of the modified anode and the marine sediment microbial fuel cell, and the preparation method comprises the following steps: S1, obtaining a primary anode; S2, nitrogen is introduced into a first PBS buffer solution to perform nitrogen exposure treatment, and dopamine hydrochloride is added to obtain a first electrolyte; S3, the primary anode is immersed into the first electrolyte, and electro-deposition is performed on the primary anode by a first cyclic voltammetry scanning method to obtain a PDA modified anode; S4, Fe3O4 powder is added into a second PBS buffer solution to obtain a second electrolyte; and S5, the PDA modified anode is immersed into the second electrolyte, and electro-deposition is performed on the PDA modified anode by a second cyclic voltammetry scanning method to obtain a PDA / Fe3O4 modified anode. The PDA / Fe3O4 composite is used to modify the anode, the electrochemical performance of the anode is improved, and a proper amount of amino acid is added into the sediment, so that the organic matter conversion and electron transmission efficiency of the microbial fuel cell are improved, and the electricity generation performance of the microbial fuel cell is improved.

The utility model discloses a sulfur autotrophic denitrification filter material reinforced constructed wetland microbial fuel cell sewage treatment system which 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. According to the utility model, the constructed wetland microbial fuel cell and the sulfur autotrophic denitrification technology are combined, so that the dual effects of pollutant removal and electricity generation are realized, a new idea is provided for the combination of the constructed wetland microbial fuel cell and the sulfur autotrophic denitrification technology, and meanwhile, a new direction is provided for the removal of river sewage.

A biofuel cell generates electricity by an oxidation-reduction reaction catalyzed by an enzyme, wherein the enzyme is immobilized on at least one of an anode and a cathode, the anode comprises a conductive material (1) and an electrode binder (1), the cathode comprises a conductive material (2) and an electrode binder (2), at least one of the electrode binder (1) and the electrode binder (2) comprises a polymer (A), the polymer (A) comprises a first structural unit derived from a nonionic ethylenically unsaturated monomer (a1), a second structural unit derived from an anionic ethylenically unsaturated monomer (a2), and a third structural unit derived from a crosslinking agent (a3), and the crosslinking agent (a3) has two or more ethylenically unsaturated bonds in one molecule.

According to the present disclosure, provided is an electrode for a microbial fuel cell, the electrode comprising a tube-shaped container. The tip end of the container is sealed by a semipermeable membrane. At least a portion of the interior of the container is filled with an aqueous solvent. A cathode is inserted into the distal end of the container. The cathode is at least partially immersed in the aqueous solvent inside the container.

The invention discloses a microbial fuel cell based on bacillus pasteurii as well as a construction method and application thereof, and relates to the technical field of biological fuel cells. The microbial fuel cell comprises a single-chamber reactor, an anode, a cathode and a wire, the cathode is positioned on the upper layer of the single chamber of the single-chamber reactor and is in contact with air; the anode is positioned at the single-chamber bottom layer of the single-chamber reactor; the lead is connected with the anode and the cathode; a cavity of the single-chamber reactor is filled with soil or an electrolyte solution; the surface of the anode is loaded with a bacillus pasteurii biological membrane; the bottom layer of a single chamber of the single-chamber reactor is loaded with a urea-containing culture medium. The microbial fuel cell provided by the invention can realize collaborative implementation of soil heavy metal remediation and electric energy recovery, and has the advantages of simple preparation process, stable electricity generation performance, high heavy metal removal efficiency, wide application range and the like.

The application discloses a novel bio-photoelectric coupling device, which comprises a shell, a water inlet formed in the bottom of the shell, and a water outlet formed in the top of the shell; an artificial wetland unit, which comprises a shunt layer and an intermediate substrate layer sequentially laid in the shell from bottom to top, and plants planted in the intermediate substrate layer; the water inlet is located at the bottom of one side of the shunt layer; a microbial fuel cell unit, which comprises an anode layer and a cathode layer, and the anode layer and the cathode layer are electrically connected through an external circuit, the anode layer is located between the shunt layer and the intermediate substrate layer, the cathode layer is located above the intermediate substrate layer, the top of the plants penetrates through the cathode layer and extends out of the shell, and the water outlet is located above the cathode layer. The coupling of the microbial fuel cell unit and the artificial wetland unit can not only remove common pollutants, but also remove composite pollutants such as antibiotics and heavy metal substances, improve the pollutant removal capacity, and realize more economical input and output.

The invention provides a complex microbial inoculant and application thereof in degradation of starch and biofuel cells, and belongs to the cross technical field of environmental biotechnology and bioelectrochemistry. According to the invention, a complex microbial inoculant composed of three microorganisms is constructed through a synthetic biological strategy; the complex microbial inoculant comprises genetically engineered Escherichia coli capable of rapidly converting starch into monosaccharide easy to use, shewanella for bearing upstream metabolites and geobacter for generating electricity, wherein the genetically engineered Escherichia coli is used for rapidly converting starch into monosaccharide easy to use; according to the invention, through precise function division of three strains, a complex degradation and power generation process is decomposed into a plurality of sub-steps catalyzed by special strains, so that an efficient'metabolic assembly line 'is formed, the inhibition of intermediate products is reduced, and the overall energy conversion efficiency is improved; the complex microbial inoculant can be used for degrading starch and preparing microbial fuel cells, realizes wastewater purification and recovery of bioelectric energy at the same time, and has remarkable environmental and economic benefits.

The invention discloses a PTFE anion exchange membrane-based biological fuel cell, which comprises an anode chamber, a cathode chamber, an anion exchange membrane and an external circuit system, the anion exchange membrane is a PTFE membrane grafted with quaternary ammonium groups and is arranged between the anode chamber and the cathode chamber, the anode chamber is internally provided with an anode, an anolyte and anaerobic sludge, the anode is attached with anaerobic electrogenesis microorganisms, and the cathode chamber is provided with an anode and an anode liquid. The anaerobic electrogenesis microorganisms decompose organic matters in the anode chamber and generate H < + >, CO2 and electrons; a cathode, a salt buffer solution and O2 are arranged in the cathode chamber, the cathode is conductively connected with the anode through an external circuit system, and OH <-> in the cathode chamber is transferred into the anode chamber through the anion exchange membrane. The biological fuel cell provided by the invention adopts the PTFE membrane grafted with quaternary ammonium groups as the anion exchange membrane, so that OH <-> in the cathode chamber is transferred into the anode chamber through the anion exchange membrane to maintain pH balance of the anode chamber, reduce ion deposition on the surface of the cathode and reduce charge transfer resistance, thereby obtaining higher power density and coulombic efficiency.

The present application relates to the technical field of groundwater ecological restoration, and particularly is a method for precise recharge of multi-layer aquifer in groundwater overexploitation area, which aims at the problems of uneven recharge, well blockage, disconnection of well group regulation and control, and single monitoring in traditional recharge technology. The method first carries out hydrogeological survey to determine the parameters of recharge well, and lays out integrated monitoring array. Independent recharge is realized by layered sealing, and uniform recharge is realized by using degradable biological gel to temporarily block the dominant seepage channel. A digital twin platform is constructed to complete the intelligent regulation and control of well group, and the permeability of aquifer is enhanced by magnetic fluid. The parameters are dynamically adjusted in real time during the recharge process, and pulse gas-liquid-solid three-phase backwashing is used to clear the blockage, and in-situ purification and system self-power supply are realized by combining microbial fuel cell. Finally, the recharge scheme is optimized through comprehensive evaluation. The present application can precisely and efficiently recharge multi-layer aquifer, control land subsidence, reduce operation cost, and is suitable for restoration of various groundwater overexploitation areas.

The invention discloses a system for repairing underground water by utilizing a microalgae microbial fuel cell, the system comprises an anode module, a cathode module and a pumping module, the anode module comprises an anode reactor, a first electrode and a velvet net, the cathode module comprises a cathode reactor and a second electrode, and the pumping module is connected with the first electrode and the second electrode. The pumping module comprises a first peristaltic pump, a second peristaltic pump and a third peristaltic pump, a first electrode is arranged in the anode reactor, the surface of the first electrode is wrapped with a velvet net, a second electrode is arranged in the cathode reactor, and the first electrode and the second electrode are connected through a metal wire. According to the invention, the microalgae microbial fuel cell is directly placed in the to-be-repaired underground water in situ, so that the remediation efficiency of the underground water is improved by utilizing microalgae microorganisms, and meanwhile, the traditional aeration oxygen supply is replaced by microalgae photosynthesis, so that the power generation performance of the microbial fuel cell is improved, and the energy consumption is reduced; and the process cost of the microbial fuel cell is reduced based on the biochemical characteristics of the microalgae.

The invention provides a synthetic microbial community and application thereof in degradation of trehalose and biofuel cells, and belongs to the technical field of synthetic microbiology and biological energy. A synthetic microbial community is constructed by means of synthetic biology, the synthetic microbial community comprises genetic engineering escherichia coli and shewanella, and the synthetic microbial community can realize a complete metabolic pathway from trehalose to acetic acid and an efficient electron transport chain; the method can be used for treating trehalose-rich wastewater or wastes and the like; the synthetic microbial community can be used for a microbial fuel cell, can stably generate current density and power density which are higher than those of a single strain or a natural mixed flora in the microbial fuel cell, and has good practicability.

The invention provides an electrode assembly for a submarine microbial fuel cell, a preparation method and a device, belongs to the technical field of fuel cells, and solves the technical problem of low synergistic energy supply efficiency of a cathode and an anode of a fuel cell. The co-treatment anode is treated by urea and sodium persulfate; the ternary composite cathode is electrically connected with the co-processing anode through a wire; the co-processing anode releases electrons in seabed sludge through an oxidation reaction of microorganisms on organic matters, and the electrons are transmitted to the ternary composite cathode through a wire; a seabed sludge and seawater interface is used as a natural proton exchange membrane to realize a proton and electron transfer path between the anode and the cathode; the electrode assembly generates a potential difference through electron transfer and redox reaction and outputs energy. The method is suitable for preparing the electrode of the submarine microbial fuel cell.

The utility model relates to application of a microbial fuel cell, in particular to a microbial fuel cell small-scale test device for wastewater treatment. Comprising a box body of a single-chamber structure, an anode and a cathode, the anode and the cathode are arranged in the box body, supports which are horizontally distributed at intervals are arranged in an inner cavity of the box body, transmission shafts which are driven by a transmission device to rotate are arranged on the upper portions of the supports in the horizontal direction, and cathode carbon felts are axially arranged on the transmission shafts at intervals. Anode carbon felts are horizontally distributed and longitudinally arranged on the support below the transmission shaft at intervals, the anode carbon felts are in conductive connection with the cathode carbon felts through adjustable resistors and the transmission shaft, and a water inlet, a water outlet and a sludge discharge port are formed in the box body. The device effectively solves the problem that the prior art is difficult to be applied to the field of wastewater treatment, and has the advantages of effectively expanding the equipment scale, being simple in structure, wide in part source, low in cost, wide in application range and the like.

A biological substance cumulative amount measurement device 1 for measuring a cumulative amount of a biological substance generated in a living body, said device including: a biofuel cell 20 for generating power using a specific biological substance 13 as a substrate; a power storage unit 40 for storing electric energy generated through power generation by the biofuel cell 20; and a communication unit 50 for outputting information on the electric energy stored in the power storage unit 40 in response to a trigger from the outside.

The invention relates to the technical field of water pollution control and resource utilization, in particular to a microbial fuel cell and a method for removing nitrogen and phosphorus by using a cell anode chamber. According to the microbial fuel cell, an anode of the microbial fuel cell is a carbon felt with an iron wire as a support, a cathode of the microbial fuel cell is a carbon brush, and anaerobic sludge is inoculated in an anode chamber. The invention provides a system for synchronously recovering nitrogen and phosphorus in urine based on a microbial fuel cell and a biochemical reaction, so as to realize efficient nitrogen removal and phosphorus recovery. According to the invention, triple functions of power generation, denitrification and phosphorus recovery of the microbial fuel cell are integrated, an innovative technical path of pollution control, energy regeneration and resource high value is formed, and a solution is provided for phosphorus recovery and wastewater treatment.