93 results about "Electrolysis - action" patented technology

In a solid polymer fuel cell series, various circumstances can result in the fuel cell being driven into voltage reversal. For instance, cell voltage reversal can occur if that cell receives an inadequate supply of fuel (for example, fuel starvation). In order to pass current during fuel starvation, reactions other than fuel oxidation may take place at the fuel cell anode, including water electrolysis and oxidation of anode components. The latter may result in significant degradation of the anode. Such fuel cells can be made more tolerant to cell reversal by promoting water electrolysis over anode component oxidation at the anode. This can be accomplished by incorporating a catalyst composition at the anode to promote the water electrolysis reaction, in addition to the typical anode electrocatalyst for promoting fuel oxidation.

The invention relates to an integrated electrolysis nitrogen and phosphorus removal wastewater treatment method, which realizes to remove the nitrogenous and phosphorus nutrition salt and organic pollutants in wastewater in same electrolytic tank. The invention adopts graphite and iron plate as electrodes, alternates electrolysis phosphorus removal and electrolysis nitrogen removal process by alternating the electrode polarities to remove the nitrogenous and phosphorus nutrition salt and organic pollutants in wastewater. The invention performs optimization and integration according to the change characteristics of the parameters including electrolysis time, current density, pH value, pollutants removal rate in the electrolysis phosphorus removal and electrolysis nitrogen removal process, can remove the nitrogenous and phosphorus nutrition salt and organic pollutants in wastewater in high efficiency in short time without adding any medicament in the process, achieves the advantages of small occupation area, short treatment time and high pollutants removal efficiency.

The invention relates to a method for recovering nickel from electroplating centralized control wastewater. The method comprises the following steps in sequence: a, collecting; b, filtering; c, adsorbing, i.e., enabling filtrate obtained in the step b to pass through an adsorption device filled with nickel high-selectivity resin; d, regeneration, i.e., washing out nickel ions adsorbed on the resin by acid liquid to obtain regenerated liquid; e, impurity removal, i.e., sequentially carrying out oxidation sedimentation and resin adsorption processing on the regenerated liquid; f, electrolysis, i.e., using a rhodanized titanium plate as an anode, using a titanium plate as a cathode and carrying out electrolysis under the current density of 150 to 300A/m<2> to obtain a nickel plate. According to the invention, due to adoption of Tulsion CH-90 resin, nickel solution with relatively high concentration can be obtained; the method is beneficial for reducing electrolysis cost of subsequent electrolysis; interference ions with serious influence on nickel electrolysis are removed by three impurity removal processes; the method also improves the electrolysis rate of nickel ions and improves the recovery rate of nickel by selecting the suitable anode and cathode, does not generate sludge and not only is environmental-friendly, but also effectively reduces treatment cost.

The invention discloses a new bipolar film and utility in the ferrate, which comprises the following steps: adopting 3 percent sodium carboxymethylcellulose aqueous solution; stirring; heating; decompressing; decolouring; proceeding doctor-blade casting process on the glass board; drying to form film; immersing in the FeCl3 solution for several min; drying to produce positive electrode film; dissolving chitose through 2 percent acetate aqueous solution to prepare chitose acetate aqueous solution; stirring; decompressing; decolouring; proceeding doctor-blade casting process on the glass board; drying to form CS-CMC polymeric bipolar film of negative and positive electrode; utilizing the prepared CS-CMC polymeric bipolar film as negative and positive electrode to electrolyze ferrate at 30-40mA .cm-2 condition. The invention modifies chitose into insoluble negative ion exchanging film, which satisfies high-current density working need.

The invention discloses an electrochemical preparation method of graphene. The preparation method comprises the following steps: providing an electrode with the electrolysis action, and pretreating the electrode with the electrocatalysis action; dropping a graphene oxide solution onto the surface of the pretreated electrode with the electrocatalysis action, and drying to obtain a graphene oxide modified electrode; and soaking the graphene oxide modified electrode into a 10mmol/L-500mmol/L salt solution with the pH value of 7, regulating the potential of the electrode to be -1.2V to -2V and reacting for 1s to 1h, so as to obtain needed graphene. According to the electrochemical preparation method of the graphene, by matching the electrode with the electrocatalysis action with the salt solution with the pH value of 7 for use, the reduction action of graphene oxide can be activated with relatively low voltage, the neutral salt solution is green, simple to prepare, and low in price. Compared with a traditional electrochemical preparation method of the graphene, the electrochemical preparation method of the graphene is lower in preparation cost and difficulty.

The invention relates to a granular active carbon circulating micro-electrolysis reactor, comprising a micropore aeration pipe, a granular active carbon separating chamber, wherein the micropore aeration pipe is connected with a total aeration pipe and positioned at the bottom of the reactor; positive poles of a plurality of scrap iron plates are uniformly distributed on the upper middle of the reactor at equal intervals; a support beam I and a support beam II which are fixed on the inner lateral wall of the reactor and processed with corrosion resisting materials are provided with a fixed clamping groove I and a fixed clamping groove II, and the left end, the right end, the upper end and the lower end of the positive poles of the scrap iron plates are vertically fixed in the fixed clamping groove I and the fixed clamping groove II; waste water enters in the reactor through a water inlet pipe; micro-bubbles generated by the micropore aeration pipe provide rising power for granular active carbon so that the granular active carbon rises among the positive poles of the scrap iron plates so as to form a granular active carbon rising area; the gravity of the granular active carbon is reduced in a non-aeration area so as to realize the granular active carbon circulating in the reactor; and the water enters in the granular active carbon separating chamber through an overflow weir after being processed and is discharged by a water outflow pipe. The invention solves the problems of scrap iron hardening, waste water channeling, micro-electrolysis positive pole inactivating which is puzzled for a long time and the problem that redox sediments are attached to positive and negative poles.

The present invention relates to a microwave plasma oxidation water treatment method and its application. Said invention includes the following steps: feeding industrial waste water, utilizing mixture of iron discharge body and active carbon to adsorb organics in the waste water; utilizing plasma produced by using microwave to excite iron discharge body to oxidate organics adsorbed on the surface of active carbon, at the same time internal electrolysis action produced between iron discharge body, active carbon and organics can be used for degrading organics, after the organics are oxidated and degraded, making the waste water be reached to reuse and discharge standard.

The invention discloses an air purification device and a purification method, and belongs to the technical field of air purification. By the aid of the electrolytic action, the piezoelectric effect and the pyroelectric effect of tourmaline, particularly, by the aid of the piezoelectric effect and the pyroelectric effect of the tourmaline, the tourmaline can release a large number of negative ions by the piezoelectric effect and the pyroelectric effect generated under flow of constant temperature water, so that air is purified. Compared with a pure tourmaline material air purification method, the method has the advantages of high air purification efficiency, wide application scope, fine effect and the like. Besides, PM2.5 (particulate matters 2.5) can be degraded, harmful gas and undesirable odor are eliminated, bacteria are resisted, humidification is realized, human metabolism is promoted, human immunity is improved, physical and psychological health of humans is protected, and the air purification device has the advantages of safety, environmental protection, non-toxicity, no odor, no radiation, long service life, convenience in use and the like.

The invention discloses an electrolysis treatment process and device for low-content organic pollutants in high-salinity rare earth wet smelting wastewater. The electrolysis treatment process comprises the following main steps: (1) oil removal of the wastewater; (2) pH regulation and coagulating sedimentation for heavy metal removal of the wastewater; (3) chlorine peroxidation treatment of the wastewater; (4) electrolysis treatment of the wastewater; (5) reduction, flocculation and sedimentation of the wastewater; (6) activated carbon filtration treatment of the wastewater. According to the electrolysis treatment process and device, aiming at the refractory characteristic of organic matter in the high-salinity rare earth wet smelting wastewater, the organic matter is decomposed and mineralized under the electrolysis action and the strong oxidation action of produced chlorine, and up-to-standard discharge of the wastewater is realized.

The invention discloses a self-generating water body electroreduction module, applied to a water body containing oxidizing substances. The self-generating water body electroreduction module comprises a hollow tube, a self-generating unit and an electrolysis unit, wherein the self-generating unit is arranged in the hollow tube and coupled to the electrolysis unit. When the water body circulates in the hollow tube, the water body drives the self-generating unit to generate electric power and transmit the electric power to the electrolysis unit which receives the electric power and performs an electrolysis action on the water body circulating to the electrolysis unit, so that the oxidizing substances in the water body are subjected to a reduction reaction.

The invention belongs to the technical field of water treatment, in particular to a micro-electrolysis device capable of producing active oxygen. The device comprises a water injector, an ultrasonic generator, a dissolved oxygen and ultrasonic reactor, a micro-electrolysis generator, a micro-electrolysis reactor and a micro-electrolysis controller. The ultrasonic wave produced by the ultrasonic generator plays a role in the dissolved oxygen and ultrasonic reactor, activates and produces active oxygen substance; and the micro-electrolysis generator produces the active oxygen substance in the micro-electrolysis reactor through the action of an electric field between electrodes under the control of the micro-electrolysis controller. The device uses the interaction of the ultrasonic wave and a micro-electrolysis battery, can kill bacteria and degrade organic matter, and finally achieves the purpose of purifying water quality.

The invention discloses an internal-circulation type iron-carbon micro-electrolysis reactor. The reactor structurally comprises a cylinder body (1), a water inlet pipe (2), a water distributor (3), an air inlet pipe (4) and an internal circulation pipe (5); waste water flows through the water inlet pipe (2) and the water distributor (3) in sequence and is dispersed into iron-carbon filler (a) which is located on the lower portion of the cylinder body (1), and in the process of being in contact with the iron-carbon filler (a), the waste water is purified unceasingly till post-purification water is formed and drained out of a water outlet (6) of the cylinder body; air enters the iron-carbon filler (a) at the bottom of the cylinder body (1) through the air inlet pipe (4), and aeration bubbles moving upward are formed; the aeration bubbles drive the iron-carbon filler (a) to pass through the internal circulation pipe (5) and be discharged into the post-purification water; the iron-carbon filler (a) keeps on being sedimentated till falling back to an accumulation bed of the iron-carbon filler (a), thereby an aeration cycle of the iron-carbon filler (a) is formed. It is thus clear that by means of the internal-circulation type iron-carbon micro-electrolysis reactor, the energy consumption is low, the abrasion is little, the operation is simple, and the waste water can be disposed in a continuous and highly-efficient mode.

The invention provides an industrial wastewater treatment method by internal electrolysis intensified by microwave plasma oxidation technology comprising the steps of, absorbing the organic contaminant in industrial sewage by using the mixture of irony electric discharging body and activated charcoal, oxygenizing the adsorbed organic contaminant under the internal electrolysis action produced by the mixture, the microwave energizing the irony electric discharging body to produce plasma under wet state, thus degrading the absorbed organic contaminant and regenerating activated charcoal rapidly, finally discharging the cleaned industrial sewage.

The invention relates to an electric spark and electrolytic continuous machining method and tool for efficient plane milling, and belongs to the field of electric spark and electrolytic machining. A cathode of the tool is mainly formed by combining a copper-tungsten alloy electric spark electrode and a stainless steel electrolytic electrode. The initial machining gap of the copper-tungsten alloy electric spark electrode and the to-be-machined surface of a workpiece is set to be a small value, when a large voltage is applied, air in the machining gap is subjected to breakdown, generated electric sparks rapidly remove an oxidation layer and a large number of metal bodies on the surface of the alloy workpiece in a corrosion manner, and the time needed for oxidization layer removal in subsequent electrolytic machining is saved; and then materials are further efficiently removed by the electrolytic electrode through the electrolytic function, and the uneven surface subjected to electric spark machining is subjected to electrolytic machining to be level and smooth. Through electric spark and electrolytic continuous machining, titanium alloy materials can be efficiently removed, and the significance on improving the titanium alloy machining efficiency is achieved.

The invention relates to nano-scale electric jet-flow spray head equipment, in particular to a method for manufacturing a nano-scale electric jet-flow spray head based on a SU-8 glue electrolytic process. The method is characterized by comprising the following steps: adopting SU-8 glue as an electric jet-flow spray needle material, and creating necessary conditions for forming nano cracks throughan incomplete drying and over-exposure way; taking a graphene straight line as an induced graph, and forming a linear nano channel with a relatively uniform dimension below the induced graph under electrolytic action of high-voltage electricity; and forming the final nano-scale electric jet-flow spray head through steps of thermo-compression bonding, ultra-violet lithography and electrode manufacturing.

The invention relates to a PVA production apparatus wastewater treatment method. The method comprises the following steps: 1, adjusting the pH value of production apparatus wastewater to 2-4; 2, allowing the production apparatus wastewater to enter an iron-carbon micro-electrolysis reaction tank and to react; 3, allowing the production apparatus wastewater to enter a Fenton oxidation reaction tank and to react; 4, adding an alkali to yielding water discharged from the Fenton oxidation reaction tank to flocculate and settle iron ions in the yielding water; 5, allowing the yielding water discharged from the Fenton oxidation reaction tank to enter a primary aerobic reaction tank and to react; and 6, allowing yielding water discharged from the primary aerobic reaction tank to enter a secondary aerobic reaction tank and to react, settling yielding water discharged from the secondary aerobic reaction tank through a secondary sedimentation tank, and discharging standard reaching water. The treatment method adopts a combination technology to solve the defect of incomplete removal of COD from the PVA production apparatus wastewater by adopting single technologies, finally realizes standard reaching discharge of the PVA production apparatus wastewater through advanced treatment of the PVA production apparatus wastewater, and has the advantages of substantial treatment effect, simple maintenance, less investment and low cost.

The invention discloses a subcritical or supercritical water electrochemistry reinforced liquid phase catalytic biomass pyrolysis method. The method takes subcritical or supercritical water as a medium to process the biomass in presence of a catalyst, by electrolyzing water to produce hydrogen, the biomass is pyrolyzed and dissolved, and the solid biomass is decomposed and converted to low molecular weight biological oil; on one hand, the subcritical or supercritical water transfers heat to the biomass, on the other hand, free hydrogen is released under an electrolysis function, free radical chain reaction is timely blocked, yield of liquid fuel is effectively increased and quality is improved; the biomass is uniformly heated, a chemical bond of lignocellulose is ruptured, an ion pair intermediate is generated and is stimulated by an electric field, a pyrolysis rate is quickened, efficiency is high, a process is easy to control and a use rate of the biomass is improved.

The invention discloses a treatment method for carton packaging and printing production wastewater. The treatment method comprises the following steps of: a, adjusting the pH value of the carton packaging and printing production wastewater to be between 2 to 4, performing acid precipitation reaction, and eliminating floating dross; b, performing aeration micro-electrolysis reaction on the wastewater after acid precipitation; c, adding alkali in the wastewater after micro-electrolysis, adjusting the pH value to be between 8 to 9 and generating a precipitate, and removing the precipitate generated by the reaction; d, conveying the wastewater after precipitation in an aerobiotic treatment pond and performing biochemical treatment; and e, precipitating the wastewater after the biochemical treatment and then draining to the outside, wherein the aeration micro-electrolysis reaction performs a strong oxidation reaction in an aeration micro-electrolysis reactor; fillers in the aeration micro-electrolysis reactor are waste iron scraps and active carbon; the mass ratio of the waste iron scraps to the active carbon is (1 to 3): 1; and the wastewater after the biochemical treatment is precipitated in an SBR (sequencing batch reactor) pond, and the supernatant is drained after reaching the standard. The treatment method disclosed by the invention is low in construction and use costs, and capable of preventing the sludge bulking of an SBR system and guaranteeing the stable running of the system.

The invention discloses an electrolytic machining tool enabling flow field period fluctuation and a method, and belongs to the technical field of electrolytic machining. Due to the arrangement of a barbed cam mechanism in a device flow channel, the flow and the flow rate of an electrolyte in a machining flow channel fluctuate periodically, the electrolyte is promoted to flush the surface of a workpiece in a wave manner, a machining product is taken away quickly, and the surface quality of electrolytic machining is improved. In addition, spikes distributed throughout the surface of a barbed camcan pierce bubbles generated in the electrolytic action of the workpiece, the influence of the bubbles on later workpiece electrolytic machining is reduced, and the stability and the uniformity of electrolytic machining are improved. The electrolytic machining tool enabling flow field period fluctuation and the method have important significance in improving the electrolytic machining surface quality, machining stability and uniformity.

The invention relates to removable rapid waste water treatment equipment, and belongs to the technical field of waste water treatment equipment. The removable rapid waste water treatment equipment is characterized in that the structure comprises a regulating tank (1), a middle water tank (2), a micro-electrolysis reaction column (3), a catalytic ozonation reaction column (4), and an activated carbon adsorption column (5). The micro-electrolysis reaction column (3) is filled with a regularized micro-electrolysis filter, the catalytic ozonation reaction column (4) is filled with a ferro-manganese-loaded silica-gel carrier as a catalyst, the catalytic ozonation reaction column is connected with an ozonator (6) and an ozone adsorption tank (7), and the activated carbon adsorption column (5) is provided with a return pipe connected with the regulating tank (1). The removable rapid waste water treatment equipment is designed to arrange on a bearing plate with wheels, and is powered by using a diesel generator, has the advantages of high maneuverability, cheap fillers, simple structure, good treatment effects and the like, can effectively remove COD and organic matters in high-concentration waste water, and has higher utilization value when a sudden environmental pollution event of the high-concentration waste water occurs.

The invention relates to a preparation method of a multifunctional composite micro-electrolytic filler, which comprises the following steps: the first step: mixing iron ore powder, carbon powder and binder in proportion to form a semi-finished product; the second step: mixing the mixed semi-finished product with Add water into the reaction kettle to heat once and stir evenly to form a mixture; the third step: put the mixture into a fully enclosed briquette machine and compress it to form a briquette filler; the fourth step: put the briquette filler into a high-temperature reactor for secondary heating to realize the honeycomb briquette Overmolding of fillers. The method of the present invention not only changes the shape of the micro-electrolysis material, but also increases the contact area with the waste water when it treats the waste water, which greatly increases the treatment efficiency. A large number of microporous structures are formed inside, and the problems of fillers being broken and blocking pipes during use can be avoided by adding adhesives, and the problem of loose fillers can be avoided by using the secondary heating reaction of the reactor.

The invention discloses an adding element device and method of making metals, (1) which comprises the following parts: smelter 1, crucible 2, electrolysis bath 5, wire 6, electrolysis power 7, electrode 8, electrode 9, gripper mechanism 10, wherein the method is characterized by the following: the electrolysis bath 5 is connected to crucible 2; the volume of electrolysis bath 5 is 0. 2-15 percent of crucible 2; one end of electrode 8 is connected to electrolysis power 7 through wire 6 and another end inserts into fused salt; one end of electrode 9 is connected to electrolysis power 7 through wire 6 and another end inserts into metal flux; electrolysis bath 5, electrode 8 and electrode 9 are held on the gripper mechanism 10; one of electrolysis bath 5 or crucible 2 is instead of electrode 9, when the bath 5 and crucible 2 in fusion electrolysis device are electric conductor; the device can install electrolyser heater 11, metal flux agitating device 12, molten salt agitating device 13 and other auxiliary devices at the same time. (2) The industrial process of fused salt electrolysis comprises the following: smelting metal in crucible 2 to get metal flux 3; installing electrolysis bath 5 and adding in being electrolyzed salt; installing electrode 8 and electrode 9; using wire 6 to connect to electrolysis power 7; switching the current on to electrolyze; removing leavings; getting metal flux with electrolysis product. The mass of fused salt medium is 0. 2-15 percent of metal flux.