54results about How to "Reduce pollution levels" patented technology

Methods, systems, computer-readable media, and apparatuses for obtaining accurate gas sensor data are presented. A mobile device may receive gas sensor data from at least one gas sensor. The mobile device can include the at least one gas sensor and at least one environmental component. Additionally, the mobile device may receive environmental data from the at least one environmental component. Subsequently, the mobile device may calibrate the received gas sensor data based on the received environmental data and one or more reference characteristic curves. In one or more arrangements, the gas sensor can be a Metal Oxide Semiconductor (MOS) gas sensor or an electrochemical gas sensor configured to sense carbon monoxide.

The invention relates to an aflatoxin adsorbent and a method for removing aflatoxins in edible vegetable oil. An aflatoxin adsorbent is prepared through the steps of: under the action of a coupling agent, stirring oxidized graphene and aminopropyl silicagel microspheres at a temperature of 20-30 DEG C in a faintly acid environment so as to carry out amide coupling reaction; carrying out post-processing so as to obtain an oxidized graphene / aminopropyl silicagel microsphere composite material; and under the action of the coupling agent, stirring the obtained composite material and aflatoxin antibodies at a temperature of 0-4 DEG C in a faintly acid phosphate buffer solution so as to carry out the amide coupling reaction, and then carrying out post-processing to obtain the aflatoxin adsorbent. The aflatoxin adsorbent is good in adsorption effect, and can be used for adsorbing various aflatoxins; the aflatoxin adsorbent is granular, thereby facilitating the separation of the aflatoxin adsorbent after being used; and the aflatoxin adsorbent is applied to the removal of the aflatoxins in the edible vegetable oil, and can effectively reduce the pollution level of the aflatoxins in the edible vegetable oil.

The invention discloses a dust-suppression and haze-reduction bituminous mixture which is a composite material and comprises mineral aggregate and dust-suppression and haze-reduction asphalt, wherein the dust-suppression and haze-reduction asphalt comprises matrix asphalt and a dust-suppression and a haze-reduction asphalt modifier; the dust-suppression and haze-reduction asphalt modifier comprises a dust-suppression component and an anti-stripping component; the dust-suppression component comprises one or more of calcium chloride, ferric chloride, aluminium chloride, calcium oxalate and potassium oxalate; the anti-stripping component comprises one or more of calcium lignosulphonate, sodium lignosulphonate and petroleum resin. The invention further discloses a preparation method of the dust-suppression and haze-reduction bituminous mixture. The preparation method comprises the following steps: preparing the dust-suppression and haze-reduction asphalt and mixing and stirring the dust-suppression and haze-reduction asphalt and mineral aggregate at certain temperature. The dust-suppression and haze-reduction bituminous mixture can absorb moisture in air and forms a water film on a road surface to increase moisture content of dust, so that the dust cannot be raised by passing vehicles easily, and the dual effects of dust-suppression and haze-reduction and water conservation are realized.

The invention discloses an ambroxol hydrochloride liquid preparation and a preparation method thereof. The method comprises the steps: dissolving ambroxol hydrochloride, stabilizing agent and osmotic pressure regulator into water used for injection, and evenly mixing together to obtain solution I; then, filtering the solution I, and obtaining the ambroxol hydrochloride liquid preparation. The preparation method does not introduce active carbon, so as to avoid the danger of hurting human body since active carbon particle is introduced into the preparation; meanwhile, the active ingredients in the preparation is ensured to be stable, and the safety (namely, the chemical stability of the ambroxol hydrochloride can be effectively improved, the particle content in the preparation is reduced, and the purity of the preparation is improved) of the finished product can be guaranteed.

Disclosed is a sealant composition for a liquid crystal display device, the sealant composition including a (meta) acrylate compound as expressed in Chemical Formula 1 below.

The invention discloses dust-suppression and haze-reduction asphalt. The dust-suppression and haze-reduction asphalt is a composite material and comprises matrix asphalt and a dust-suppression and haze-reduction asphalt modifier, wherein the dust-suppression and haze-reduction asphalt modifier comprises a dust-suppression component and an anti-stripping component, the dust-suppression component comprises one or more of calcium chloride, ferric chloride, aluminium chloride, calcium oxalate and potassium oxalate, and the anti-stripping component comprises one or more of calcium lignosulphonate, sodium lignosulphonate and petroleum resin. The invention further discloses a preparation method of the dust-suppression and haze-reduction asphalt. The method comprises steps as follows: the matrix asphalt is heated to the mixing temperature; the dust-suppression and haze-reduction asphalt modifier is added to the matrix asphalt for mixing; a mixture of the mixed matrix asphalt and the dust-suppression and haze-reduction asphalt modifier is placed in an oven for development. The dust-suppression and haze-reduction asphalt has water absorption and moisture retention performance, the preparation method is simple, the production cost is low, the prepared dust-suppression and haze-reduction asphalt has dust suppression and haze reduction effects, and other properties of the asphalt are not affected.

The present invention discloses a sealant composition for liquid crystal display device, the sealant composition including a monomer as expressed in Chemical Formula 1 below wherein X is O, S, or NH, R1 is H or CH3, and R2 is an alkyl group or an aryl group of C2-30.

The invention relates to a triazolone-containing pesticide composition for preventing and treating wheat gibberellic diseases. In each Mu, 1-100 parts of validamycin by weight and 1-80 parts of triazolone by weight are used. The pesticide composition provided by the invention has an obvious synergistic effect of preventing and treating the wheat gibberellic diseases, the effect of preventing and controlling the gibberellic diseases can be remarkably improved, and the capability of manually preventing and controlling the wheat crop gibberellic diseases is improved; the pollution level of grain DON toxins is remarkably reduced; the drug use amount is reduced, the cost is reduced, and the environmental pollution and pesticide residues are reduced; the drug resistance to the triazolone by wheat pathogenic fungi is delayed and the wheat gibberellic diseases are prevented and controlled; the lasting period of the validamycin is prolonged, the drug use frequency is reduced and the triazolone-containing pesticide composition can be used for treating wheat powdery mildew, rust diseases, leaf blight and banded sclerotial blight, and the manual cost of using pesticides is reduced; and the dosage of chemical pesticides is greatly reduced and the triazolone-containing pesticide composition is environmentally friendly.

The invention relates to an energy-saving hot water system for a refrigeration device in a ship's cold storage, belonging to the technical field of refrigeration and ship engineering. The invention includes a condenser, an expansion tank, a hot water stop valve, a one-way valve, a thermometer, a flow meter, a programmable controller, a replenishment valve, a circulating water pump, a return water stop valve, a seawater cooling circuit, a three-way valve, a float valve, hot water tank. According to the change of water temperature and water level in the hot water tank, through the adjustment of the programmable controller, the entire energy-saving hot water system can operate normally, and the seawater cooling circuit can ensure that the refrigeration system of the ship's cold storage is in a favorable working state and can be used to the maximum extent. The waste heat discharged from the refrigeration device makes domestic hot water use no additional energy consumption at all, which reduces the energy consumption and emission level of the whole ship. It is a waste heat utilization system that can operate stably for a long time and has reliable performance, and has significant economic benefits. and social benefits.

The invention relates to aflatoxin-adsorbing filter cloth, and a preparation method and application thereof. The aflatoxin-adsorbing filter cloth disclosed by the present invention is a reduced graphene oxide / poly(vinyl formal) vinylon filter cloth composite material, has a regular structural morphology, and is obtained by a hydrothermal reduction of graphene oxide and food-grade poly(vinyl formal) vinylon filter cloth. The filter cloth can absorb a variety of aflatoxins, and is used for removing aflatoxins in edible vegetable oil, has good adsorption effect, can effectively reduce the pollution level of aflatoxins in edible vegetable oil, and can be reused with simple and convenient operation.

The invention relates to a strengthening method for remedying soil contaminated by metal strontium through ryegrass and an application. Two strengthening steps of adding a saponin solution and mowingare combined, so that the problems that the growth rate of the ryegrass is low, the biomass of the ryegrass is small, and the concentration of the enriched metal strontium is low are solved, meanwhile, the biomass of the ryegrass can be effectively increased, the remediation time of the ryegrass for the soil contaminated by strontium is shortened, and the level of strontium contamination in the soil is reduced. The strengthening method is wide in raw material source, simple in technology and low in cost.

The invention discloses an environment-friendly asphalt mixture capable of actively inhibiting flying dust on a road surface. The environment-friendly asphalt mixture comprises aggregates and environment-friendly asphalt capable of actively inhibiting flying dust on the road surface; the environment-friendly asphalt capable of actively inhibiting flying dust on the road surface comprises asphalt and an environment-friendly asphalt additive capable of actively inhibiting flying dust on the road surface; the environment-friendly asphalt additive capable of actively inhibiting flying dust on theroad surface comprises a component for actively inhibiting dust and a tackifying and plasticizing component; the component for actively inhibiting dust comprises one or more of zeolite powder, montmorillonite powder, sepiolite powder and nest-like ore powder; and the tackifying and plasticizing component comprises one or more of polyester fibers, glass fibers and rubber fibers. The environment-friendly asphalt mixture capable of actively inhibiting flying dust on the road surface, disclosed by the invention, is free of pollution to surrounding environments and can actively adsorb water in theair to form a water film on the road surface to increase the weight of the dust, so that the double effects of actively inhibiting flying dust on the road surface and saving water sprayed for inhibiting dust on a road.

The invention relates to a pesticide composition for preventing and treating wheat head blight. The pesticide composition contains 1-150 parts of validamycin and 1-20 parts of propiconazole. The pesticide composition has an obvious synergistic effect when being used for preventing and treating wheat head blight; the prevention and treatment effect on the wheat head blight can be obviously improved; the capability of human for preventing and controlling the gibberellic disease of triticeae crops is improved; the pollution level of cereal DON toxin is significantly reduced; the dosage is reduced; the cost is reduced; the environment pollution and the pesticide residue are reduced; the medicine resistance of pathogenic fungus on propiconazole is relayed; the fusarium blight is prevented and treated; the lasting period of validamycin is shortened; powdery mildew, a rust disease, leaf blight and banded sclerotial blight are treated; the labor cost of application of the pesticide is reduced; the dosage of the chemical pesticide is greatly reduced; and the pesticide composition is friendly to environment.

The invention discloses a nano ganciclovir freeze-drying preparation for injection and a preparation method thereof. The nano ganciclovir freeze-drying preparation for injection comprises the following components in parts by weight: 100-400 parts of ganciclovir, 10-50 parts of dextran 40, 5-50 parts of solubilizer, 10-100 parts of nano carrier material and 10-80 parts of freeze-drying skeleton agent. The preparation method comprises the following steps of: sequentially adding dextran 40, solubilizer, ganciclovir, nano carrier material and freeze-drying skeleton agent into water for injection to be dissolved, filtering a solution step by step, and carrying out freeze-drying, thus a freeze-drying preparation is obtained. According to the preparation method, no activated carbon is introduced, thus a risk that damage is done to a human body when activated carbon particles are introduced into the preparation as the activated carbon is used is avoided; besides, pH of the nano ganciclovir freeze-drying preparation for injection is 6-8 and close to that of plasma, and local irritation produced to the human body owning to overhigh alkalinity is avoided.

The present invention relates to a high-concentration domestic sewage processing system which mainly comprises a primary filtering device, an oxygen-deficient biochemical treatment fluid bed, an anaerobic biochemical treatment fluid bed and an aerobic biochemical treatment fluid bed that are connected in series, the primary filtering device is composed of a plurality of filtering modules, the oxygen-deficient biochemical treatment fluid bed is arranged with a plurality of oxygen-deficient biochemical processing modules, the anaerobic biochemical treatment fluid bed is arranged with a plurality of anaerobic biochemical treating modules, and the aerobic biochemical treatment fluid bed is arranged with a plurality of aerobic biochemical treating modules. The system is suitable for executing the procession of the small-scale high-concentration domestic sewage and has the advantages of excellent processing effect, compact structure, flexible installation and small accommodation area. The system of the invention is suitable for the sewage processing of the resident living area.

The present invention relates to a high-concentration organic sewage processing system which mainly comprises a chemical deposition device, an oxygen-deficient biochemical treatment fluid bed, an anaerobic biochemical treatment fluid bed and an aerobic biochemical treatment fluid bed that are connected in sequence, the primary filtering device is composed of a plurality of filtering modules, the chemical deposition device is composed of a plurality of chemical deposition unit, the oxygen-deficient biochemical treatment fluid bed is arranged with a plurality of oxygen-deficient biochemical treatment modules, the anaerobic biochemical treatment fluid bed is arranged with a plurality of anaerobic biochemical treatment modules, and the aerobic treatment fluid bed is arranged with a plurality of aerobic treatment modules. The system is suitable for executing the processing of the small-scale high-concentration organic sewage and has the advantages of excellent processing effect, compact structure and small accommodation area, is suitable for the organic sewage processing of organic chemical plant, pharmaceutical factory, hide manufacturing and the like occasions.

The invention discloses a pure water storage device which comprises a water bucket. A bucket cover is arranged on the top of the water bucket. A through hole is formed in the bottom of the water bucket. The pure water storage device further comprises a water storage bag. The top of the water storage bag is fixed to the bucket cover, and the bottom of the water storage bag is fixed into the through hole in the bottom of the water bucket. A water drainage / exhaust pipe is communicated with the top of the water storage bag and provided with a check valve. A water inlet / outlet pipe is communicated with the bottom of the water storage bag. The bottom of the water storage bag is communicated with a liquid level sensor arranged outside the water bucket. The water storage bag is a sealed plastic bag made of medical or food grade materials such as PE-polyethylene. According to the pure water storage device, the one-time replacement way replaces periodic cleaning and disinfection, meanwhile, exhaust and overflowing prevention purposes are achieved, and the effect basically equal to the effect of an open container is achieved. By using the medical or food grade plastic bag (such as PE) which is widely applied at present, the most visual and feasible purpose that the materials are reliable and controllable is achieved, and the surface smooth finish can reach the extremely high level.

The invention discloses a dust-suppression and haze-reduction asphalt modifier. The modifier is a composite material and comprises a dust-suppression component and an anti-stripping component, wherein the dust-suppression component comprises one or more of calcium chloride, ferric chloride, aluminium chloride, calcium oxalate and potassium oxalate, and the anti-stripping component comprises one or more of calcium lignosulphonate, sodium lignosulphonate and petroleum resin. The invention further discloses a preparation method of the dust-suppression and haze-reduction asphalt modifier. The method comprises steps as follows: weighing out the dust-suppression component and the anti-stripping component in a certain proportion; loading the dust-suppression component and the anti-stripping component into mixing equipment for mixing. The dust-suppression and haze-reduction asphalt modifier can be directly used as one component of a road material and is added to matrix asphalt for preparation of dust-suppression and haze-reduction asphalt, then the dust-suppression and haze-reduction asphalt is used as a cementing material for paving of a road, dust suppression and haze reduction effects are realized, and other properties of the asphalt road are not affected.

The invention relates to a plant growth regulation complexing agent for strengthening perennial ryegrass to restore cadmium-polluted soil and application of the plant growth regulation complexing agent. The plant growth regulation complexing agent is prepared from the following raw materials: 12.5 to 41 parts of polyamine, 4 to 41 parts of salicylic acid, 8 to 60 parts of sodium nitroprusside, 0.8 to 10 parts of sodium selenite, 50 to 75 parts of Tween and 100000 to 150000 parts of water. A traditional single exogenous plant growth regulating substance is broken through, the plant growth regulating complexing agent is compounded by various exogenous substances including polyamine, salicylic acid, sodium nitroprusside and sodium selenite, various exogenous substances are organically combined, the enrichment rate of ryegrass to cadmium can be increased, the cadmium content of ryegrass can be increased, and the cadmium content of ryegrass can be increased. Meanwhile, the capability of the ryegrass on stress of other organisms and abiotic organisms is enhanced, and the problem that the biomass of the ryegrass is small is solved. The plant growth regulating complexing agent is used for strengthening the perennial ryegrass to restore the cadmium-polluted soil, the characteristics that the perennial ryegrass is harvested for multiple times in one year and the harvesting interval is short are fully utilized, the time for phytoremediation of the cadmium-polluted soil is shortened, and the cadmium pollution level in the soil is reduced.

The invention discloses an isosorbide mononitrate liquid preparation and a preparing method thereof. The method comprises the steps: dissolving isosorbide mononitrate, stabilizing agent and osmotic pressure regulator into water used for injection, and evenly mixing together to obtain solution I; then, filtering the solution I, and obtaining isosorbide mononitrate injection. As active carbon is notintroduced into the preparing method, the active carbon particles are prevented from being introduced into the preparation to be harmful to the human body, and the stability of the active ingredientsin the preparation as well as the safety of the finished product can be ensued (namely, the chemical stability of the isosorbide mononitrate is effectively improved, the particulate content in the preparation is reduced, and the purity of the preparation is increased).

The invention provides an energy saving hot water system of a refrigerating device of a ship refrigeratory and belongs to the technical field of refrigeration and ship engineering. The invention comprises a condenser, an expansion water tank, a hot water disconnecting valve, a one-way valve, a thermograph, a flow rate meter, a programmable controller, a water charging valve, a circulation water pump, a water returning disconnecting valve, a seawater cooling loop, a three-way valve, a floater valve and a hot water tank. According to the change of water temperature and the water level of the hotwater tank, the whole energy saving hot water system can operate naturally with the regulation of the programmable controller; the seawater cooling loop is adopted to guarantee that the refrigeratingsystem of the ship refrigeratory is in a favored working state; waste heat discharged by the refrigerating device can be taken use of in maximum so that hot water for life has no requirement for additional energy consumption completely and energy consumption and the discharging level of the whole ship are reduced; the invention is a waste heat utilizing system with long-term stable operation andreliable performance and has significant economic benefit and social benefit.

The invention relates to a new application of a pesticide composition for preventing and treating fusarium blight. 1-150 parts by weight of validamycin and 1-20 parts by weight of prothioconazole are used for preventing and treating fusarium blight per mu and have obvious synergism, the effect of preventing and treating the fusarium blight can be improved remarkably, and abilities of human in prevention and control of the fusarium blight of triticeae crops are improved; and the validamycin and prothioconazole composition is used for preventing and treating the fusarium blight of the triticeae crops, pollution level of grain DON toxin can further be reduced remarkably, pesticide dosage is reduced, cost is lowered, environmental pollution and pesticide residue are reduced, and development of pesticide resistance of pathogenic fungi of wheat is delayed; meanwhile, the new application of the pesticide composition for preventing and treating fusarium blight has the advantages that the lasting period of the validamycin is prolonged, using frequency of pesticide is reduced, powdery mildew of cereals, rust disease, leaf blight and sheath blight can also be treated, and pesticide use cost and labor cost are reduced; and use dosage of chemical pesticide is greatly reduced, and the pesticide composition is environmentally friendly.

The invention relates to a new application of a pesticide composition for preventing and treating fusarium blight. 1-150 parts by weight of validamycin and 1-20 parts by weight of prothioconazole are used for preventing and treating fusarium blight per mu and have obvious synergism, the effect of preventing and treating the fusarium blight can be improved remarkably, and abilities of human in prevention and control of the fusarium blight of triticeae crops are improved; and the validamycin and prothioconazole composition is used for preventing and treating the fusarium blight of the triticeae crops, pollution level of grain DON toxin can further be reduced remarkably, pesticide dosage is reduced, cost is lowered, environmental pollution and pesticide residue are reduced, and development of pesticide resistance of pathogenic fungi of wheat is delayed; meanwhile, the new application of the pesticide composition for preventing and treating fusarium blight has the advantages that the lasting period of the validamycin is prolonged, using frequency of pesticide is reduced, powdery mildew of cereals, rust disease, leaf blight and sheath blight can also be treated, and pesticide use cost and labor cost are reduced; and use dosage of chemical pesticide is greatly reduced, and the pesticide composition is environmentally friendly.

The invention relates to a pesticide composition used for preventing and treating wheat head blight. The pesticide composition is prepared from the following components in parts by weight: 1-150 parts of validamycin and 1-20 parts of epoxiconazole. The pesticide composition provided by the invention has a remarkable synergistic effect when used for preventing and treating wheat head blight, the effect of preventing and treating head blight can be remarkably improved, and the capability of preventing and controlling wheat head blight of human beings is improved; the pollution level of DON toxins of grains is remarkably reduced, the chemical consumption is reduced, the cost is reduced, the environmental pollution and the pesticide residue are reduced, the pesticide resistance on epoxiconazole of wheat pathogenic fungi is delayed, and wheat head blight is prevented and treated; the lasting period of validamycin is prolonged, the frequency of pesticide application is reduced, wheat powdery mildew, rust disease, leaf blight and banded sclerotial blight can also be treated, the use cost of pesticides is reduced, the use dosage of chemical pesticides is greatly reduced and the epoxiconazole-containing pesticide composition is environmentally friendly.

The invention relates to an aflatoxin adsorbent and a method for removing aflatoxins in edible vegetable oil. An aflatoxin adsorbent is prepared through the steps of: under the action of a coupling agent, stirring oxidized graphene and aminopropyl silicagel microspheres at a temperature of 20-30 DEG C in a faintly acid environment so as to carry out amide coupling reaction; carrying out post-processing so as to obtain an oxidized graphene / aminopropyl silicagel microsphere composite material; and under the action of the coupling agent, stirring the obtained composite material and aflatoxin antibodies at a temperature of 0-4 DEG C in a faintly acid phosphate buffer solution so as to carry out the amide coupling reaction, and then carrying out post-processing to obtain the aflatoxin adsorbent. The aflatoxin adsorbent is good in adsorption effect, and can be used for adsorbing various aflatoxins; the aflatoxin adsorbent is granular, thereby facilitating the separation of the aflatoxin adsorbent after being used; and the aflatoxin adsorbent is applied to the removal of the aflatoxins in the edible vegetable oil, and can effectively reduce the pollution level of the aflatoxins in the edible vegetable oil.

The invention relates to myclobutanil-contained pesticide composition for preventing wheat head blight and purposes thereof. The myclobutanil-contained pesticide composition contains 1-120 parts of validamycin, and 1-50 parts of myclobutanil. The pesticide composition for preventing wheat head blight has significant effect, and damage caused by head blight can be effectively controlled by only 10-40 grams of effective components per mu. The myclobutanil-contained pesticide composition for preventing wheat head blight has the advantages that pollution level of grain DON toxin can be significantly lowered, food safety is ensured, usage and cost are reduced, and environment pollution and pesticide residue are alleviated; resistance to pesticide is alleviated, effective duration of the validamycin is prolonged, powdery mildew, rust disease, leaf blight and banded sclerotial blight can be treated at the same time, and labor cost of pesticide application is reduced.

The invention belongs to the technical field of environmental protection equipment, and particularly relates to improved multipurpose environmental protection equipment. The upper part of a shell is connected with a photovoltaic panel through a direct current motor, a lead screw and a universal joint; a trolley is arranged in the shell, and a reaction tank, a feeding tank and a discharging tank are stacked on the trolley from top to bottom; the upper part in the reaction tank is connected with a liquid spraying pipe, and the other end of the liquid spraying pipe is connected with the feeding tank through a pump; the lower part of the reaction tank is connected with a liquid return pipe, and the other end of the liquid return pipe is connected with the discharge tank. The device is simple in structure and reasonable in design, meets the requirements of carbon emission indexes, can treat carbon dioxide captured by the atmosphere and atmospheric pollution, solves the bottleneck problem of low solubility of carbide slag slurry, namely calcium hydroxide, in water, and makes it possible that calcium hydroxide replaces sodium hydroxide to remove greenhouse gas. Meanwhile, an ideal treatment method is provided for carbide slag slurry and alkaline wastewater, the method is suitable for being widely popularized and applied, large economic benefits can be brought to enterprises, and meanwhile certain social benefits are achieved.

The invention discloses environment-friendly asphalt capable of actively suppressing rising dust on a road surface. The environment-friendly asphalt is a composite material and comprises matrix asphalt and an environment-friendly asphalt additive capable of actively suppressing rising dust on the road surface. The environment-friendly asphalt additive capable of actively suppressing rising dust onthe road surface comprises a component for actively suppressing rising dust on the road surface and a tackfying and plasticizing component, wherein the component for actively suppressing rising duston the road surface comprises one or more selected from a group consisting of zeolite powder, montmorillonite powder, sepiolite powder and nest-like ore powder, and the tackfying and plasticizing component comprises one or more selected from a group consisting of polyester fibers, glass fibers and rubber fibers. The environment-friendly asphalt capable of actively suppressing rising dust on the road surface in the invention has water absorption and moisture retention properties, and is simple to prepare, low in production cost and capable of suppressing rising dust on a road without any influence on the other properties of the asphalt.

The invention relates to a bactericidal composition containing picoxystrobin and metrafenone. A weight ratio of active ingredients, namely picoxystrobin and metrafenone, is preferably (1-40):(40-1), further perferably (1-20):(20-1); and the bactericidal composition comprises 1-85% by mass of the active ingredients and the balance of auxiliary ingredients allowed to be used and accepted in pesticides. A dosage form of the bactericidal composition is a water dispersible granule, wettable powder, a suspending agent, aqueous emulsion, microemulsion and the like, and the bactericidal composition ismainly used for preventing and controlling wheat scab and wheat powdery mildew.