232 results about "Chlorine dioxide" patented technology

The invention belongs to the technical field of oil and gas development, and particularly relates to an oil and gas well blocking remover and a preparation method thereof. The blocking remover comprises the following components: 5-8% of low-carbon composite organic acid, 5-7% of fluoboric acid, 6-9% of ammonium bifluoride, 4-6% of an anti-acid sludge mutual solvent, 2-4% of a corrosion inhibitor, 2-4% of polyoxypropylene polyoxyethylene propylene glycol ether, 8-12% of a permeation dispersion surfactant, 2-5% of a sulfur dissolving agent, 2-5% of a stable chlorine dioxide solution and the balance of water. The preparation method comprises the following steps: adding the low-carbon composite organic acid, the fluoboric acid and the ammonium bifluoride into water and stirring; adding an acid sludge resisting mutual solvent and a sulfur dissolving agent, and stirring; adding the corrosion inhibitor, the polyoxypropylene polyoxyethylene propylene glycol ether and the permeation dispersion surfactant, and stirring; and finally, reducing the stirring speed, adding the stable chlorine dioxide solution, and stirring to uniformly mix. The blocking remover provided by the invention is comprehensive in blocking removal function, very good in dissolving and dispersing performance on complex blocking substances, very small in corrosion damage to a shaft pipe wall and wide in applicability.

The invention discloses a material supplementing mechanism, and relates to the technical field of air disinfection machines, the material supplementing mechanism comprises a box body assembly, the box body assembly is internally provided with the material supplementing mechanism, the material supplementing mechanism is convenient to disassemble and assemble through a shifting ring and an embedded ring which are clamped and arranged on the material supplementing mechanism, so that a chlorine dioxide tablet consumable bag can be conveniently installed on the embedded ring, and the material supplementing mechanism is convenient to use. When the stirring ring is stirred by the feeding assembly for feeding, the embedded ring in the stirring ring also rotates along with the stirring ring, so that the chlorine dioxide tablets in the consumable bag can be conveyed to the feeding position, the automatic feeding function is achieved, the requirement for storing the chlorine dioxide tablet consumable bag is met, meanwhile, automatic feeding can be carried out when the chlorine dioxide tablet consumable bag is used again after one-time use is finished, and the feeding efficiency is improved. Therefore, after a chlorine dioxide tablet consumable bag is put into the device, materials can be automatically supplemented for subsequent multiple sterilization operations, the use function of the device is further expanded, and great convenience is provided for a user.

The invention discloses a preparation method of a slow-release solid preservative, and relates to the field of fruit preservation, and the preservative is prepared from the following raw materials in parts by weight: 5-8 parts of chitosan, 2-4 parts of carrageenan, 1-5 parts of sodium citrate, 2-3 parts of silicon dioxide, 3-4 parts of 1-methylcyclopropene, 2-3 parts of chlorine dioxide, 1-2 parts of water and 3-6 parts of baking soda. The preservation method of the slow-release solid preservative comprises the following steps: loading the solid preservative in a non-woven bag, placing the non-woven bag in a foam box or a packaging bag loaded with fruits, and sealing the foam box or the packaging bag. The baking soda in the preservative releases carbon dioxide, 1-methylcyclopropene and chlorine dioxide, and meanwhile, the physiological metabolism of the fruits and the generation of ethylene are effectively inhibited, and pathogenic bacteria are killed, so that the shelf life of the fruits is prolonged.

The present application relates to the technical field of disinfection robot, especially to a gaseous chlorine dioxide air disinfection robot working method, comprising S1, the robot is powered on and is in standby state; S2, the robot receives control instruction and enters working mode; S3, the controller controls the fan to enter the set power work, extracts the set volume of liquid in the main water tank 1 into the reaction pool through the second water pump, puts the set dose of chlorine dioxide solid medicament into the reaction pool through the medicament putting mechanism, releases the gas into the liquid in the reaction pool through the air pump, and the fan and the air pump work for the set time; S4, after the robot works for the set time, the controller controls the fan to run at low speed or be closed, the air pump is closed, all the liquid in the reaction pool is extracted into the main water tank through the first water pump, and the robot enters the standby state. Through the method, the space is actively disinfected in all directions, the environment is completely disinfected, and the disinfection efficiency is improved.

The utility model discloses a grain storage system applying chlorine dioxide, which comprises a granary, a first gas dispersion mechanism, a second gas dispersion mechanism, a circulation pipeline and a chlorine dioxide generator, the first gas dispersion mechanism comprises a main gas pipe and a plurality of gas dispersers, the main gas pipe is arranged at the top in the granary, one end of each gas disperser is connected with the main gas pipe, and the other end of each gas disperser is connected with the circulation pipeline. An air outlet pipe is arranged at the other end; the second gas dispersion mechanism comprises a conveying pipeline and a plurality of dispersion pipelines, the conveying pipeline is arranged at the bottom in the granary and distributed along the inner circumferential wall of the granary, the dispersion pipelines are arranged at the bottom in the granary, the conveying pipeline is arranged around the dispersion pipelines, the two ends of the dispersion pipelines communicate with the conveying pipeline, and the dispersion pipelines are provided with a plurality of gas outlet ports; one end of the circulation pipeline communicates with the main air pipe, the other end of the circulation pipeline communicates with the conveying pipeline, and the circulation pipeline is provided with a circulation fan. The grain storage system applying chlorine dioxide provided by the embodiment of the utility model can improve the gas diffusion efficiency.

The invention discloses an intelligent quintuplet cooperative plasma self-purification robot long-term storage system and a self-adaptive disinfection control method. According to the system, cold plasma, ozone, chlorine dioxide, self-generated nitric oxide and a charge self-purification jump effect are fused, and a dynamic self-purification system with an electric field-gas field-chemical field-intelligent field-thermal field five-dimensional synergistic energy field is constructed. The robot adopts a three-section structural layout and a multi-mode self-adaptive propulsion mechanism, environmental parameters are sensed through AI, discharge power and oxidant release are intelligently regulated and controlled, and precise sterilization, toxicity reduction and mildew prevention in a multi-medium environment are achieved. The system can generate various high-energy active species containing. OH, O, NO, ClO, ONOO and the like, chain splitting decomposition and oxidation mineralization are carried out on mold spores, bacterial cells, aflatoxin and the like, the sterilization rate reaches 99.995%, and the toxin degradation rate exceeds 98%. The system has the characteristics of no residue, low energy consumption, long-acting self-maintenance and the like, is suitable for multiple scenes of grain storage, traditional Chinese medicinal materials, cold chains, farmland, public health and the like, and realizes an intelligent, continuous and chemical-additive-free green storage and dynamic purification system.

The utility model discloses a chlorine dioxide solution filling device, and particularly relates to the technical field of solution filling, the chlorine dioxide solution filling device comprises a rack, a conveying belt is arranged on one side of the rack, a supporting frame is fixedly arranged on the top of the rack, an adjusting mechanism is arranged at the bottom of the supporting frame, and the adjusting mechanism comprises an electric telescopic rod fixedly arranged at the bottom of the supporting frame; a movable plate is fixedly arranged at the output end of the electric telescopic rod, T-shaped sliding blocks are fixedly arranged on the two sides of the movable plate, a sliding groove is formed in the supporting frame, the T-shaped sliding blocks are slidably connected with the sliding groove, a distribution box is fixedly arranged at the bottom of the movable plate, and a plurality of filling heads are arranged at the bottom of the distribution box in a penetrating mode. The automatic filling device can be flexibly matched with containers with different heights, the filling amount is accurately controlled, all the components cooperate to achieve automatic filling, the production efficiency and the filling quality are effectively improved, a filling bottle can be stably fixed, three-dimensional stirring of a solution is achieved, and it is ensured that the concentration is uniform.

The utility model relates to the technical field of chlorine dioxide equipment, in particular to a chlorine dioxide generating device which comprises a reaction tank, a first accommodating part, a second accommodating part, a liquid level sensor and a controller, the first accommodating part and the second accommodating part convey corresponding solutions to the reaction tank; the liquid level sensor measures the liquid levels of solutions in the first containing part and the second containing part in real time and sends the liquid levels to the controller in real time; the controller receives data of the liquid level sensor and judges whether the hydrochloric acid solution and the sodium chlorate solution are conveyed normally or not according to a preset threshold value or a proportional relation, and when the controller detects that the liquid level data are abnormal, the controller can control the alarm unit to send out an alarm signal, so that workers are reminded to debug, maintain or replace equipment; the liquid level of hydrochloric acid and sodium chlorate solutions is monitored in real time through the liquid level sensor, problems are found in time, accurate conveying of hydrochloric acid and sodium chlorate is ensured, the synthesis efficiency of chlorine dioxide is improved, and raw material waste caused by unbalanced conveying proportion is reduced.

The invention relates to the technical field of chlorine dioxide monitoring, and discloses a disinfection tank monitoring point selection method which comprises the following steps: arranging a disinfection tank containing dosing pipes in different forms and a simulation model of water flow flowing and chlorine attenuation in the disinfection tank; simulating each simulation model to obtain a concentration cloud picture of each simulation model; dividing the galleries of the disinfection tanks with the chlorine decay speed exceeding a set decay threshold value in each simulation model into a plurality of monitoring point areas to be selected in equal proportion; based on the concentration cloud pictures of the plurality of to-be-selected monitoring point position areas, selecting the to-be-selected monitoring point position area with the minimum chlorine concentration range as an initial monitoring area; comparing the initial monitoring areas of the dosing pipes in various forms, and selecting the initial monitoring area of the dosing pipe with the minimum chlorine concentration range as a final monitoring area; and changing the parameters of the dosing pipe corresponding to the final monitoring area, so that the chlorine concentration range of the final monitoring area is converged. According to the invention, the monitoring point position of the disinfection tank can be scientifically selected.

The utility model relates to the field of disinfectant production and processing, in particular to an online chlorine dioxide generator. The utility model provides an on-line chlorine dioxide generator capable of enabling reaction ions to fully collide to participate in reaction. The chlorine dioxide on-line generator comprises a reaction kettle and a PLC (Programmable Logic Controller), and the PLC is arranged at the upper part of the front side of the reaction kettle; the PLC is connected with all the mechanisms through the wires; the two sides of the reaction kettle penetrate through the kettle wall and are provided with the vibration mechanisms capable of enabling reaction liquid in the reaction kettle to collide with each other through vibration; the upper parts of the left side and the right side of the reaction kettle penetrate through the kettle wall and are provided with the electric control proportional valves capable of accurately controlling the total amount of reaction raw materials and the ratio of the raw materials. During use, the electronic control proportional valve accurately controls the total amount and proportion of raw materials, and meanwhile, the vibration mechanism drives reaction liquid in the reaction kettle to collide with each other, so that the reaction degree within a certain time is improved.

The invention provides chlorine dioxide nano-carrier encapsulation integrated equipment and an operation method thereof, and belongs to the technical field of mechanical equipment. The problems that the manufacturing procedure cannot be completed in the one-time conveying process in the existing nano-carrier production, and the production time is long are solved. According to the chlorine dioxide nano-carrier encapsulating integrated equipment and the operation method thereof, the integrated equipment comprises mixing and stirring equipment and encapsulating equipment, the mixing and stirring equipment is arranged on the left side of the encapsulating equipment, and raw materials are mixed, stirred and processed through the mixing and stirring equipment and then encapsulated through the encapsulating equipment. The method has the advantage that the machining efficiency is improved.

The utility model provides an organic wastewater advanced treatment system based on Fenton oxidation reaction, and relates to the field of wastewater treatment. The organic wastewater advanced treatment system based on the Fenton oxidation reaction comprises a Fenton oxidation module, an advanced oxidation module, a neutralization and flocculation module and a precipitation module which are connected in sequence, the Fenton oxidation module is communicated with the deep oxidation module through a pipeline, the Fenton oxidation module is provided with a water inlet pipe, a first adding point and a second adding point, the first adding point is used for adding ferrous sulfate, the second adding point is used for adding hydrogen peroxide, the deep oxidation module is provided with a third adding point, and the third adding point is used for adding chlorine dioxide; the deep oxidation module, the neutralization and flocculation module and the precipitation module are co-constructed, and the common wall slots of every two adjacent modules are communicated. The system can effectively remove non-biodegradable substances in wastewater in industries such as printing and dyeing, pulping and papermaking and the like, and reduces the generation of chemical sludge at the same time.

Disclosed in the present invention are a pharmaceutical chlorine dioxide antimicrobial liquid agent, a preparation method therefor, and use thereof. The pharmaceutical chlorine dioxide antimicrobial liquid agent comprises: a solvent and chlorine dioxide gas infused into the solvent, wherein the concentration of chlorine dioxide in the pharmaceutical chlorine dioxide antimicrobial liquid agent is 5000 mg / L-10000 mg / L. According to the pharmaceutical chlorine dioxide antimicrobial liquid agent, the preparation method therefor, and the use thereof provided by the present invention, the obtained pharmaceutical chlorine dioxide antimicrobial liquid agent has high concentration, good stability, and high purity, meeting the requirements for the use of the pharmaceutical chlorine dioxide antimicrobial liquid agent as a pharmaceutical product.

The present application provides a composition containing chlorine dioxide and a method for preparing chlorine dioxide tablets. The composition comprises a chlorine dioxide precursor, a stabilizer, and a corrosion inhibitor. The stabilizer is selected from one or more of hydroxypropyl-β-cyclodextrin, sodium hexametaphosphate, sodium silicate, and boron nitride. After the composition is made into tablets and activated, the resulting solution has good stability and can be stored stably for 6 months, and has low corrosion to metals, which can well solve the problems that the solution after activation of existing chlorine dioxide tablets is not easy to store and has strong corrosion to metals.

The present application relates to a kind of mixing device, belong to slow-release purification technical field.The mixing device includes container main body, bottle body and medicament bin arranged in order from below to above in container main body inside, and adjusting piece and upper cover arranged in order from below to above in the upper portion of container main body outside;Liquid medicament is contained in bottle body;Medicament bin contains solid powder medicament, liquid medicament and solid powder medicament mix to produce the gas needed to use.The mixing device is stored and placed by ingenious structure design when not being used, solid powder medicament and liquid medicament can be stored for a long time;When using, only need to press simply, the mixing of solid powder medicament and liquid medicament can be realized quickly, present preparation present use, simultaneously open gas passage, slowly release gas to outside, realize sterilization, remove aldehyde, remove peculiar smell and other functions.The opening of the mixing device can be adjusted.The overall structure is simple and ingenious, effectively prolongs service life;Especially suitable for chlorine dioxide.

The invention relates to an impurity removal method of a chlorine dioxide vertical generator, which comprises the following steps: adding first pure water and a sodium hypochlorite solution into the chlorine dioxide vertical generator, continuously boiling under a vacuum condition, cooling and discharging liquid; washing with second pure water and discharging liquid; the boiling temperature is lower than 80 DEG C. Different from the prior art, the technical scheme provides a mode for efficiently removing impurities in a mode that the sodium hypochlorite solution is boiled at the temperature lower than 80 DEG C, the boiling temperature in the mode is lower than the efficient decomposition temperature 80 DEG C of hypochlorite, the hypochlorite is high in stability, the decomposition amount is small although the hypochlorite is boiled, and therefore the impurity removing efficiency is higher; the chlorine dioxide vertical generator impurity removal device has the advantages of simple and effective impurity removal of the chlorine dioxide vertical generator, no residue, reduction of the decomposition of chlorine dioxide, and improvement of the production efficiency and the production safety.

To provide an apparatus for generating chlorine dioxide capable of reducing components to be used.SOLUTION: In an apparatus for generating chlorine dioxide 1, a sodium chlorite solution 5 and fumed silica 7 are mixed in a container 3 to generate chlorine dioxide.SELECTED DRAWING: Figure 2

The invention relates to a remediation material for degrading organic contaminated soil by coupling manganese dioxide loaded biochar with chlorine dioxide and a preparation method and a remediation method of the remediation material, and belongs to the technical field of soil remediation, the remediation material comprises a biochar carrier and manganese dioxide nanoclusters loaded on the biochar carrier. Compared with the prior art, the manganese dioxide loaded biochar catalyst has excellent physical and chemical properties, the high specific surface area and the porous structure of the biochar provide a large number of active sites for MnO2 nanoparticles, and meanwhile, the adsorption performance of the biochar can effectively shorten the distance between the catalyst and pollutants and improve the reaction efficiency.

The present invention discloses a treatment system and treatment process for sodium methoxide solid waste, which belongs to the field of hazardous waste treatment technology. The system comprises a hydrolysis reactor, an oxidation reactor, a neutralization reactor and a solid-liquid separator connected in sequence; the hydrolysis reactor is connected to an inert gas tank; the oxidation reactor is connected to an ozone generator and a chlorine dioxide generator; the neutralization reactor is connected to a manganese chloride solution storage tank and a sodium hydroxide solution storage tank; the hydrolysis reactor, the oxidation reactor and the neutralization reactor are all connected to an exhaust gas treatment system. The sodium methoxide solid waste treatment process of the present invention can achieve complete and safe disposal of sodium methoxide solid waste, and effectively collects and treats the three wastes of the system throughout the reaction process. At the same time, the sodium methoxide solid waste treatment system of the present invention is built based on the above-mentioned treatment process. Ultimately, the present invention aims to achieve safe disposal of sodium methoxide solid waste while ensuring the safety of the operating environment.

To provide an active treatment agent for laver aquaculture containing oxalic acid dihydrate.SOLUTION: The present invention relates to an active treatment agent for laver aquaculture containing oxalic acid dihydrate, wherein a first active treatment agent containing oxalic acid dihydrate is superior in pitch removal capability, green laver removal capability, copepod removal capability, and cadmium removal capability, and, when mixed with a second active treatment agent that is activated chlorine dioxide aqueous solution, by confirming that harmful microorganisms belonging to the genus Pseudoalteromonas, which soften laver tissue, are markedly reduced, an active treatment agent for laver aquaculture that is environmentally friendly and excellent is provided.SELECTED DRAWING: Figure 1

The utility model discloses a concentrated sulfuric acid distributor for preparing chlorine dioxide, which comprises an outer tantalum tube, an inner tantalum tube and a spray head, two ends of the outer tantalum tube are respectively provided with an outer tantalum tube flange, one end of the inner tantalum tube is arranged on the outer side of the outer tantalum tube, the other end of the inner tantalum tube is arranged on the inner side of the outer tantalum tube, and an inner tantalum tube flange is arranged at one end of the inner tantalum tube. The nozzle is arranged in the outer tantalum tube and is coaxial with the outer tantalum tube, the nozzle comprises a first cone and a second cone which are coaxially arranged, a sealing plate is arranged on the top surface of the second cone, the second cone is fixedly connected with the inner wall of the outer tantalum tube through a plurality of rib plates, and a plurality of small holes are uniformly distributed in the surface of the second cone between two adjacent rib plates. According to the utility model, the flow velocity of reaction liquid can be effectively utilized, so that a concentrated sulfuric acid solution is uniformly distributed, the condition that chlorine dioxide is decomposed due to overhigh local acidity is avoided, and the chlorine dioxide yield of the device is further improved.

The invention belongs to the technical field of pulp paper production, and particularly relates to a preorder pulp screening and washing process for reducing alkali loss and bleaching chlorine dioxide consumption. The method comprises the following steps: pre-impregnating and cooking a wood chip sample in sequence to obtain coarse pulp; then the coarse pulp is sequentially subjected to joint removal, pressure screening, primary washing, secondary washing, oxygen bleaching, degassing condensation, third washing and fourth washing, and the efficiency of the pulp washer can be effectively improved; meanwhile, multiple times of washing are matched, so that the pulp washing efficiency is maximized, the pulp washing quality is improved, and the alkali loss and the pulp COD (Chemical Oxygen Demand) are greatly reduced. Therefore, according to the technical scheme provided by the invention, the washing alkali loss can be reduced, and the recovery amount of alkaline chemicals is increased; and the COD content in the slurry entering the chlorine dioxide bleaching section can be reduced, and the consumption of a subsequent bleaching oxidant chlorine dioxide is reduced.

The present invention provides a composite disinfectant containing chlorine dioxide and its preparation process, belonging to the technical field of composite disinfectant preparation; the preparation process includes the following steps: preparation of a carrier stabilizer; preparation of modified carboxymethyl chitosan; preparation of slow-release gel microspheres; preparation of modified chitosan derivatives; preparation of a chlorine dioxide composite disinfectant. The chlorine dioxide composite disinfectant prepared by the present invention can avoid the initial burst release of the slow-release gel microspheres, enable the slow and stable release of the chlorine dioxide component, play a lasting and efficient disinfection and antibacterial role, and can reduce the corrosion of chlorine dioxide to metals.

The utility model relates to the technical field of chlorine dioxide generation, and discloses a protective chlorine dioxide generator which comprises a generator body, metering pumps are installed on the two sides of the generator body, and a sodium chlorate storage tank is installed on one side of the metering pump on the left side of the generator body. A hydrochloric acid storage tank is mounted on one side of the metering pump on the right side of the generator main body, and guide grooves are formed in the exteriors of guide rods and are formed in the two sides of the front end and the rear end in the generator main body. According to the utility model, the components such as the rubber protection plate, the spring, the guide rod and the guide groove are arranged, and when the generator main body is used, a protection structure formed by the components is additionally arranged at the front end and the rear end of the generator main body, so that the generator main body has a certain protection property; when external impact force is encountered, the protection structure formed by the components can reduce the external impact force to protect the generator main body.

The invention discloses a man-machine coexisting chlorine dioxide disinfection method, and relates to the technical field of chlorine dioxide disinfection, in an unmanned state, a chlorine dioxide disinfection system is adopted to carry out high-concentration disinfection on a production workshop, and at the moment, the concentration of chlorine dioxide in the production workshop is 1.5-2 ppm; in the presence of a person, the chlorine dioxide disinfection system is adopted to perform low-concentration disinfection on the production workshop, and the concentration of chlorine dioxide in the production workshop is 0.3-0.8 ppm at the moment. Compared with a traditional ozone or ultraviolet disinfection mode, the chlorine dioxide disinfection method realizes man-machine coexistence, does not affect the production efficiency and is safer.

The utility model provides a composite extrusion die for a chlorine dioxide nano slow-release antibacterial material and a PBAT / PLA (poly (butylene adipate-co-terephthalate) / poly lactic acid) film, and belongs to the technical field of preparation of polymer films. The plastic extrusion die solves the problem that the plastic extrusion die in the existing market does not have the functions of lifting and position adjusting. The composite extrusion die for the chlorine dioxide nano slow-release antibacterial material and the PBAT / PLA film comprises an extrusion die body, an extrusion die head, a screw mechanism, an air knife system, a driving mechanism and a roller table, a feeding port is formed in the upper end of the extrusion die body, the extrusion die head is arranged at the front end of the extrusion die body, the roller table is arranged at the lower end of the extrusion die head, and the screw mechanism is arranged at the lower end of the extrusion die head. The air knife system is arranged at the lower end of the extrusion die body, and an adjusting mechanism is arranged at the rear end of the extrusion die body and composed of a machine body base, a rotary disc device and a lifting device. The lifting device has the advantages of being capable of lifting and adjusting the position.

The invention relates to a method and system for the continuous treatment of the water of an aquatic facility using an integrated process control system to control a mixed halogen-based treatment comprising chlorine dioxide and a free halogen. The integrated process control system provides versatile control the chlorine dioxide and / or free halogen while employing in-situ generation of chlorine dioxide.

Ultrafiltration system for drinking water treatment in a domestic installation with - at least two filter modules (1, 2) connected in parallel and operable in filtration and backwashing modes, - Valves (11, 12, 21, 22, 31, 32, 41, 42) which are arranged on the filter modules (1, 2) and in the lines (10, 20) connecting the filter modules (1, 2), - a disinfectant addition device (40) which is connected to at least one supply line (10) of the raw water to the at least two filter modules (1, 2), - a control unit (50) to which sensors (15, 16, 25, 26) are assigned and which is assigned to the valves (11, 12, 21, 22, 31, 32, 41, 42) and via which the valves (11, 12, 21, 22, 31, 32, 41, 42) are opened and closed depending on sensor, flow rate and / or time values, and - a chlorine dioxide generation plant (60) for producing an aqueous chlorine dioxide solution, which is connected to the disinfectant addition device (40).

The utility model discloses an efficient chlorine dioxide generator, which relates to the field of reaction kettle structures, and comprises a reaction kettle body used for accommodating the generation reaction of chlorine dioxide; the appearance of the catalysis part is of a plate-shaped structure, the catalysis part is movably clamped in the reaction kettle body, a gap exists between the catalysis part and the bottom wall of the reaction kettle body, and the catalysis part is arranged to provide a catalyst for the generation reaction of chlorine dioxide; the raw materials for the chlorine dioxide generation reaction can circulate above the catalytic part and in the gap. According to the reaction kettle disclosed by the utility model, the catalytic part is arranged in the reaction kettle body, and the gap is formed between the catalytic part and the bottom wall of the reaction kettle body, so that raw materials for generating reaction of chlorine dioxide can circulate above the catalytic part and in the gap, and the purposes of improving the catalytic efficiency and saving the use amount of reaction sulfuric acid are achieved.

To provide a method for manufacturing a new germicidal disinfectant from sodium hypochlorite degraded during storage.SOLUTION: A method for manufacturing a new germicidal disinfectant from a solution including hypochlorite ion, chloric ion, and chloride ion, includes: a first reaction process of adding sulfuric acid to the solution and generating chlorine gas; a process of reacting the chlorine gas generated in a recovery liquid A with sodium hydroxide or calcium hydroxide and recovering it as hypochlorite ion; a second reaction process of adding sulfuric acid having higher concentration than that in the first reaction process to a reaction mother liquid after the first reaction process and generating chlorine dioxide gas; a process of reacting the generated chlorine dioxide gas with sodium hydroxide and hydrogen peroxide in a recovery liquid B and recovering it as chlorous acid ion; and a process of blending the recovery liquid A with the recovery liquid B to obtain the new germicidal disinfectant.SELECTED DRAWING: None