47results about How to "Good sterilization" patented technology

The invention provides a carbon-based wastewater purifying agent which is a purifying agent formed by mixing biomass carbon powder, wood vinegar and synergist with a certain quantity, wherein the harmful substances in polluted water body are adsorbed, flocculated, converted, separated and deposited due to the porosity of the biomass carbon and the deodorization, sterilization, antibiosis and flocculation functions of the wood vinegar, so that the purifying agent is good in sterilization, antibiosis, deodorization and decoloring functions, and the pollutants in the polluted water body can be effectively removed, therefore, the water body can be purified. According to the invention, a novel purifying treating technological approach is provided for the wastewater which can not be purified by a wastewater treatment apparatus in the emergency such as the pollution of the polluted channel, river, lake, water and the like; the purifying agent provided by the invention can be directly splashed into the wastewater to purify the wastewater in the condition that the wastewater treatment apparatus does not need, so that the purifying agent is convenient, quick and economical to use; the carbon-based wastewater purifying agent provides a convenient and economical treatment mode for purifying the discharged wastewater which has no the wastewater treatment apparatus momentarily; and the carbon-based wastewater purifying agent is non-toxic and harmless to use, and is wide in application range.

The invention discloses a novel antibacterial mask fabric comprising an outer fabric layer. A first filtering adsorbent fiber layer is arranged on the inner surface of the outer fabric layer; a first antibacterial fabric layer is arranged on the inner surface of the first filtering adsorbent fiber layer; a second filtering adsorbent fiber layer is arranged on the inner surface of the first antibacterial fabric layer; a second antibacterial fabric layer is arranged on the inner surface of the second filtering adsorbent fiber layer; and an inner fabric layer is arranged on the inner surface of the second antibacterial fabric layer. According to the scheme, the novel antibacterial mask fabric has excellent filtering adsorbent property and brilliant antibacterial and bactericidal performances, and can meet requirements of masks used for various places.

The invention discloses a ginger-powder blue algae treating agent. The ginger-powder blue algae treating agent is characterized by being prepared from the following raw materials in parts by weight: 20 to 30 parts of attapulgite, 15 to 20 parts of zeolite powder, 5 to 10 parts of ginger powder, 3 to 5 parts of basil powder, 2 to 4 parts of sodium caseinate, 2 to 4 parts of propylene glycol alginate, 0.5 to 1 part of litsea cubeba oil, 0.3 to 0.5 part of eucalyptus oil, 0.1 to 0.2 part of nepeta oil, 1 to 2 parts of linseed oil, 0.3 to 0.5 part of polysorbate-80, 1 to 2 parts of aluminum chloride, and 10 to 15 parts of modification addition agent. The blue algae treating agent provided by the invention not only can be used for effectively adsorbing and removing blue algae in a water body and inhibiting the growth of algae, but also has favorable effects of sterilizing and removing organic matters, nitrogen, phosphorus and heavy metal, is rich in sources of the raw materials, low in price and good in economical efficiency, moreover, has favorable biodegradability and environmental compatibility, is environment-friendly and nuisanceless, is a little in dosing quantity, quick in algae removing speed and high in practicability, and the water body and bed mud are purified effectively.

The invention discloses a mixed extract of rhizoma atractylodis lancea and hyperforin perforatum as well as a preparation method and application of the mixed extract. The method comprises: (1) raw material pretreatment; (2) enzymolysis; (3) high-pressure homogeneous extraction; (4) concentrating; (5) purification. The rhizoma atractylodis lancea and hyperforin perforatum mixed extract contains bioactive molecules, can effectively inhibit the biological activity of chitinase, achieves good acarus killing and inhibiting effects, and is mild and non-irritant to the skin. When the acaricide is applied to daily chemicals, skin acarid breeding can be prevented, symptoms such as pruritus, acne and epifolliculitis caused by acarid of the skin can be improved, and the healthy skin state can be recovered.

The invention provides a green and safe cleaning preservative for fruits, vegetables, eggs and meat and a preparation method of the cleaning preservative. The preservative is prepared from 20%-30% ofalkyl polyglucoside 0814, 1%-3% of polysorbate 80, 2%-7% of lactic acid, 2%-4% of citric acid, 2%-4% of malic acid and the balance of sterile water for injection. The preparation method comprises thefollowing steps: firstly, a certain amount of sterile water for injection is added to a liquid preparation tank, and lactic acid, citric acid and malic acid are added sequentially in proportion and stirred to be dissolved; then polysorbate 80 is added, and the substances are stirred and mixed uniformly; alkyl polyglucoside 0814 is added, the substances are stirred and mixed uniformly, and the sterile water for injection is supplemented to total amount. Natural and green substances are used as raw materials, a prescription having a killing effect on pathogenic bacteria is screened out with a compounding method, and the cleaning preservative can effectively remove pesticide residues and dust on surfaces of fruits and vegetables and kill the pathogenic bacteria on surfaces of fruits, vegetables, eggs and meat and has a good fresh keeping effect.

The invention relates to the technical field of hair-care products, and provides a dandruff removing composition which aims to solve the problem of necessary frequent hair washing caused by a large amount of dandruff due to rapid breeding of bacteria resulted in continuous production of sebum. The technical scheme of the dandruff removing composition is as follows: the dandruff removing composition comprises the following components in parts by mass: 10-18 parts of a fructus forsythiae extract, 11-19 parts of a Chinese arborvitae twig and leaf extract, 10-18 parts of a cortex magnoliae officinalis extract, 7-14 parts of a radix sophorae flavescentis extract, and 8-14 parts of propylene glycol. By using the fructus forsythiae extract, the Chinese arborvitae twig and leaf extract, the cortexmagnoliae officinalis extract and the radix sophorae flavescentis extract in cooperation in specific proportion, the prepared dandruff removing composition has relatively good oil control and sterilization effects. Being added into the shampoo products, the dandruff removing composition is capable of effectively reducing sebum and bacterium contents on the scalp after hair washing, thereby destroying breeding environment of bacteria and reducing number of bacteria so as to decrease production of dandruff.

The invention belongs to the technical field of bacterium-containing wastewater, and particularly relates to an activated carbon loaded titanium dioxide composite photocatalyst and a preparation method thereof. The preparation method comprises the steps of adding activated carbon in distilled water; stirring for 3-8 minutes; cleaning for 20-40 minutes with ultrasonic waves; then adding activated carbon in an HCl solution; stirring for 20-40 minutes; standing; filtering; and washing to a neutral state; baking activated carbon for 1-3 hours; cooling; dissolving tetra-n-butyl titanate in absolute ethyl alcohol; stirring; adding glacial acetic acid and activated carbon; impregnating for 4-6 hours; adding deionized water into the mixed solution; adjusting a pH value to 1-3; stirring for 8-20 hours; drying for 2-3 hours at a temperature of 6-575 DEG C; and calcining for 2-3 hours at a temperature of 300-700 DEG C. The photocatalyst has high porosity, good sterilization property and high recovery rate, can be separated easily, can be used repeatedly, and reduces production cost of water treatment. The method is in no need of protection of an inert gas, and is simple and easy to operate.

The invention belongs to the field of farm chemicals and discloses a bactericidal composition containing fluazinam and azoxystrobin and the application of the same. The fluazinam and the azoxystrobin serve as effective components of the composition, wherein the total content of the fluazinam and the azoxystrobin in mass percentage is 1% to 80%, and the mass ratio of the fluazinam to the azoxystrobin is 50:1 to 1:30. The composition can be used for the preparation of a bactericide for preventing and treating diseases such as rice blast, pestilence, anthracnose, leaf mold, scab and the like caused by fungi and other pathogens of cereal crops, vegetable and fruit trees, and has the advantages of wide application range, low cost and good effect.

The invention discloses a medical sterilizing pot. The sterilizing pot comprises an electric heater, a sterilizing tank, a rotating door and a steam pipe, wherein the electric heater is fixedly connected to the top end of the sterilizing tank; a water pipe and a process pipe are respectively arranged on two sides of the electric heater; the process pipe is connected with the steam pipe; the steam pipe is arranged on the inner surface of the sterilizing tank; more than one exhaust opening and more than one bent bump are formed in the steam pipe; the rotating door is arranged at the front end of the sterilizing tank; the sterilizing tank comprises more than one separation sieve, a thermometer and a supporting pin; the separation sieve is arranged inside the sterilizing tank; the supporting pin is fixedly connected with the sterilizing tank; a draining opening is formed in the front end of the supporting pin. The medical sterilizing pot can be used for effectively sterilizing and disinfecting by high-temperature steam, and is capable of disinfecting a large amount of medical appliances once since the steam pipe is uniform in heat radiation.

The invention discloses a composition for a sterilizing and corrosion inhibiting agent. The composition for the sterilizing and corrosion inhibiting agent contains beta-lactam antibiotics and bivalent tin salt. The invention also discloses an application of the composition for the sterilizing and corrosion inhibiting agent to treatment of circulating cooling water. According to the technical scheme, relatively good sterilizing and corrosion inhibiting effects can be simultaneously achieved when the composition for the sterilizing and corrosion inhibiting agent disclosed by the invention is used in a circulating cooling water system.

The invention discloses a device for generating small-particle-size hydrated negative ions by utilizing ultraviolet enhanced ionization. The device comprises an ultrasonic atomization ionization humidifier; an ultraviolet lamp tube; a carbon nano composite release electrode; a small-particle-size hydrated negative ion selector used for selecting hydrated negative oxygen ions with the crystal waterquantity n of 6 to 12 to pass through; a negative high-voltage power supply; and a control device. According to the device for generating the small-particle-size hydrated negative ions through ultraviolet enhanced ionization, the photoelectric effect of ultraviolet on water molecules is used for energizing, the number of water molecule clusters is reduced, and the effects of disinfection and sterilization are achieved; the water molecules are ionized through ultrasonic atomization, the binding degree of bound water is reduced, and a small-particle-size carrier with enough propagation distanceis provided for the negative ions; released electrons are more and more uniform, the functions of humidifying and generating high-concentration hydrated negative ions are achieved, the negative ionsare generated by a negative ion generator and a carbon nano composite release electrode, harmful substances such as nitric oxide and ozone cannot be generated, and the safety index is increased.

The invention provides a preparation method of a complex layer non-woven fabric and a non-woven fabric product. When the complex layer non-woven fabric is prepared, a non-woven fabric base layer is prepared, and then a calcium hydroxide particle plated layer is plated on at least one surface of the non-woven fabric base layer. Calcium hydroxide particles have very strong sterilizing and anti-bacterial effects and can strongly damage proteases in bacterium bodies, so that the proteases lose activity and bacteria die. After the bacteria are killed by the calcium hydroxide particles, the calcium hydroxide particles are in contact with other bacterial colonies, the above process is performed repeatedly, and continuous sterilizing and anti-bacterial effects are achieved. Therefore, the calcium hydroxide particle plated layer is plated on one or two surfaces of the non-woven fabric base layer, the bacteria and viruses gathered on the surface can be killed, and the complex layer non-woven fabric has high sterilizing and anti-bacterial effects. Meanwhile, the product produced by using the complex layer non-woven fabric also has continuous sterilizing and anti-bacterial abilities. Compared with silver ions, the calcium hydroxide particles have the advantage that the cost is greatly reduced, and sterilizing and anti-bacterial application cost of the non-woven fabric is reduced.

The invention relates to an antimicrobial and sweat-absorbing T-shirt. The T-shirt comprises a T-shirt body (1). Armpits portion, a front chest portion and a back portion of the T-shirt are provided with a piece of sweat-absorbing clothes (2), wherein the sweat-absorbing clothes (2) are installed in the inner layer of the T-shirt body (1). The sweat-absorbing clothes (2) are made of knitted fabric. The T-shirt body (1) is sewed with fabric. The fabric is coated with a fungicidal coating layer. The T-shirt has the advantages of absorbing perspiration effectively and enabling users to be comfortable in wearing by the way that the armpit portions, the front chest portion and the back portion of the T-shirt are provided with sweat-absorbing clothes. The T-shirt also has the advantage of being antimicrobial.

The invention discloses an antibacterial and disinfectant ultra-soft floor wet wipe and a preparation method thereof. Antibacterial and disinfectant liquid prepared by uniformly mixing cetyl pyridinium chloride, phenoxyethanol, glycerol, benzalkonium chloride, chamomile extracting solution, olive oil, citric acid and deionized water has god sterilization and disinfection effects; meanwhile, a carding fiber net, a modified hot melt fiber net, a hot rolled fiber net absorption layer and a water absorption fiber layer are subjected to spunlace reinforcement so that the winding of the whole is firm; no layering phenomenon occurs; and a prepared semi-finished product wet wipe has good permeability and softness. The antibacterial and disinfectant liquid at the bottom of a dip dyeing box is pumped by a water pump and is discharged to a connecting pipe through a liquid extraction pipe; the antibacterial and disinfectant liquid enters a liquid discharging pipe through the connecting pipe; an output shaft of a second motor drives a driving shaft to rotate; the driving shaft drives a shaft sleeve arranged on the surface to rotate; the shaft sleeve drives a stirring rod to stir the antibacterial and disinfectant liquid; and meanwhile, a scale removal pad is driven to remove scales on the inner wall of the liquid discharging pipe.

The invention belongs to the field of disinfection and control of plant seed-borne diseases, particularly relates to disinfection, prevention and treatment of watermelon bacterial fruit blotch, and discloses a novel compound disinfectant.The disinfectant comprises chlorine dioxide (ClO2) mainly having a disinfection effect, sodium hypochlorite (NaClO) mainly having a germination promoting effect, and potassium iodate (KIO3) mainly having an effect of stabilizer By means of the disinfectant, detected watermelon seeds with bacterial fruit blotch bacteria and artificial simulating watermelon seeds with bacterial fruit blotch bacteria are processed, the germination rate and germination potential of seeds are promoted, and the disinfection effect is remarkable and is obviously better than that of a reported existing bacterial fruit blotch disinfectant and a reported existing disinfecting method.The disinfection method can easily, rapidly and thoroughly kill bacterial fruit blotch bacteria carried by watermelon seeds, is easy to operate, free of toxin and pollution and has huge actual application value.

The invention belongs to the field of farm chemicals and discloses a bactericidal composition containing fluazinam and cyprodinil and the application of the same. The fluazinam and the cyprodinil serve as effective components of the composition, wherein the mass ratio of the fluazinam to the cyprodinil is 40:1 to 1:30, and the total content of the fluazinam and the cyprodinil in mass percentage is 5% to 70%. The composition can be used for preventing and treating diseases such as rice blast, pestilence, anthracnose, leaf mold, scab and the like caused by fungi and other pathogens of cereal crops, vegetable and fruit trees, and has the advantages of wide application range, low cost and good effect.

The invention discloses a household sterilizing, cleaning and acarus killing wet tissue which comprises a wet tissue body and wet tissue liquid sprayed and dripped on the wet tissue body, and the wet tissue emulsion is sterilizing and acarus killing emulsion and comprises plant acarus killing essential oil, alkyl glycoside, polyaminopropyl biguanide, benzalkonium chloride, isopropanol, PEG-40 hydrogenated castor oil, iodopropynyl butyl carbamate, a plant acarus killing agent, a plant anti-allergy agent and deionized water. The mass ratio of the alkyl glycoside to the polyaminopropyl biguanide to the benzalkonium chloride to the iodopropynyl butyl carbamate is (0.08-0.3): (0.5-0.9): (0.2-0.3): (0.1-0.2). The household sterilizing, cleaning and acarus killing wet tissue is high in cleaning capacity and good in sterilizing and acarus killing effects, meanwhile, the compatibility problem of emulsion and floor plastic is solved, damage to a floor in the cleaning process is avoided, and the household sterilizing, cleaning and acarus killing wet tissue is wide in application.

The invention discloses a preparation method for an antimicrobial peptide formula for a dental implant, especially for the dental implant with different layers of coatings. The coatings are arranged as molecular coatings which are formed and sequentially arrayed on the solid surface of the dental implant under the electrostatic attraction effect between positive ions and negative ions. Chitosan and hyaluronic acid coatings are made from the biological materials with excellent biological degradability and biocompatibility. Due to the existence of a surface chondroitin sulfate layer-antimicrobial peptide layer compound structure, the antimicrobial peptide formula has the advantages of long-lasting effect, efficient sterilization, anti-infection capability, anti-microbial and anti-apoptosis activity, capability of supporting conglutination, survival, growth and differentiation of various cells (such as osteoblast and chondrocyte) and wide application prospect.

The invention belongs to the field of farm chemicals and discloses a bactericidal composition containing fluazinam and validamycin and the application of the same. The fluazinam and the validamycin serve as effective components of the composition, wherein the total content of the fluazinam and the validamycin in mass percentage is 5% to 70%, and the mass ratio of the fluazinam to the validamycin is 50:1 to 1:30. The composition can be used for preventing and treating diseases such as rice blast, rice sheath blight, wheat leaf blight, wheat rust disease, peanut leaf spot, peanut net blotch, late blight of tomato and potato, gray mold, powdery mildew and anthracnose of cucumber, and apple scab caused by fungi and other pathogens of cereal crops, vegetable and fruit trees, and has the advantages of wide application range, low cost and good effect.

The invention relates to a postpartum vulva cleaning fluid, preparation method thereof and an application, wherein the postpartum vulva cleaning fluid comprises Chinese herb extracts, sodium lauroyl oat amino acids, dextrin, resveratrol three phosphate sodium, sorbitol, compound essential oil, 2,4,4'-trichloro-2'-hydroxydiphenyl ether, ethylene glycol-100 (PEG-100) stearate, surface active agents and 1, 4 - butyl alcohol and deionized water. The postpartum vulva cleaning fluid shows up excellent bacteriostatic effect and anti-inflammatory effect through selection of specific components and unique use of the preparation method and the like, reduces even obviously reduces performance when components are changed or the preparation method is changed, and has wide industrial application prospects and market value particularly in the field of obstetrics.

The invention discloses an automotive air conditioner cleaning agent. The automotive air conditioner cleaning agent is prepared from, by weight, 100 parts of water, 15-25 parts of sodium dodecyl benzene sulfonate, 15-20 parts of polyoxyethylene lauryl ether, 1-5 parts of ethylene diamine tetraacetic acid, 3-5 parts of glycol stearate, 1-5 parts of isopropyl palmitate, 1-3 parts of dipropylene glycol mono-n-butyl ether, 5-10 parts of scented water and 1-3 parts of bactericide. The automotive air conditioner cleaning agent is simple in preparation process, good in decontamination and cleaning effect and high in bactericidal activity, and after use, extraneous smells are avoided, and mould breeding is avoided. The raw materials are simple and easy to obtain, and quantitative production can be achieved.

The invention relates to the field of water treatment and discloses a composition for corrosion and scale inhibition and sterilization and an application thereof. The composition contains a water-soluble tin salt, an organic phosphonic acid, hydroxy carboxylate, a nitrogen-containing heterocyclic compound and a copolymer, wherein the copolymer comprises a structural unit provided by 2-acrylamide-2-methyl propane sulfonic acid; on the basis of the gross of the copolymer, the weight percent of the structural unit provided by the 2-acrylamide-2-methyl propane sulfonic acid is greater than or equal to 20%, wherein the weight ratio of the water-soluble tin salt to the organic phosphonic acid to the hydroxy carboxylate to the nitrogen-containing heterocyclic compound to the copolymer is 1:(1-20):(0.5-6):(0.5-6):(1-20); and the weight of the water-soluble tin salt is calculated according to tin ions. The composition for corrosion and scale inhibition and sterilization has relatively good corrosion inhibition property, scale inhibition property and sterilization property and is relatively low in dosage in use.

The invention discloses a phosphorus-containing water treatment agent composition. The composition contains a dithiocarbamate bactericide, an organic phosphonic acid anticorrosion agent and a sulfo group-containing copolymer. The invention also discloses an application of the phosphorus-containing water treatment agent composition in industrial circulating cooling water treatment. The water treatment performance evaluation of the phosphorus-containing water treatment agent composition indicates that a small dose of the composition has relatively high calcium carbonate scale inhibition rate, zinc inhibition rate and sterilizing rate and slow carbon steel sheet corrosion rate during water treatment. As a result, the phosphorus-containing water treatment agent has the advantages of excellent water treatment effect, low dosage, low phosphorus content and the like.

The present invention discloses a water treatment agent composition, which contains an amino acid having a scale inhibiting and corrosion inhibiting effect, a beta-lactam antibiotic having a sterilization effect, and an enzyme cooperating with the amino acid and the antibiotic and providing a synergy effect. The present invention further discloses applications of the water treatment agent in water treatment. According to the present invention, the performance evaluation results of the water treatment agent show that the calcium carbonate scale inhibiting rate is more than 99%, the corrosion rate of the dynamic simulation test is 0.022 mm / a, and the number of the 72 h heterotrophic bacteria can minimally achieve 1.5*10<2> / ml; and the composite agent has characteristics of low use amount, no phosphorus, strong scale inhibiting capacity, good corrosion inhibiting performance, excellent sterilizing effect, and long lasting time.

The embodiment of the invention provides a disinfection and sterilization liquid and a preparation method thereof. The disinfection and sterilization liquid is prepared from mixed sodium hypochlorite and weak acid. The effective chlorine concentration of the disinfection and sterilization liquid is greater than 25 ppm and less than or equal to 200 ppm, and the effective chlorine of the disinfection and sterilization liquid is only from hypochlorous acid. The redox potential of the disinfection and sterilization liquid is 1100 to 1500 millivolts. The disinfection and sterilization liquid provided by the embodiment of the invention has better sterilization capability and sterilization speed, and is non-toxic and non-irritant to organisms.

The invention discloses a shower gel. The shower gel comprises 8-12 parts of fatty alcohol-polyoxyethylene ether sulfate, 5-10 parts of octenyl succinic anhydride starch sugar, 0.2-0.5 part of polyepichlorohydrin dimethylamine, 0.1-2 parts of vitamin E, 1-5 parts of glycerinum, 0.01-1.0 part of citric acid, 0.01-1.0 part of triethanolamine, 3-10 parts of a thickener, 0.2-0.5 part of a preservative, 0.01-0.5 part of essence, and 30-60 parts of deionized water. The technical scheme of the invention provides the shower gel, and the shower gel not only has a better moistening effect, but also hasa better antibacterial effect.

The invention discloses a disinfectant solution for a cowshed. The disinfectant solution is composed of, by weight, 20 to 30 parts of Chinese honey locust, 15 to 20 parts of fleece-flower root, 15 to 20 parts of Chinese soapberry, 20 to 30 parts of Hyssopus officinalis, 5 to 10 parts of common cnidium fruit, 5 to 10 parts of phellodendron bark, 30 to 50 parts of alkyl polyglucoside, 10 to 15 parts of sodium gluconate and 3 to 5 parts of citric acid. The disinfectant solution for the cowshed has no toxicity, no pollution and good decontamination performance, is prepared according to a natural plant bacteriostatic formula and can effectively kill parasites and viruses in the cowshed.

A ventilation and sterilization wardrobe comprises a cabinet body (1) and a wardrobe door (3). It is featured that the inner side surface of the wardrobe door (3) corresponds to each chamber and is provided with a rotary spray head (4). The plurality of infrared dryers (8) are installed inside the cabinet body (1). A suction fan (10) is mounted on the outer bottom of the cabinet body (1)and the air outlet of the suction fan (10) is provided with a dust accumulating chamber (11).An exhaust port (12) is formed on the side of the dust chamber (11), the rear end of the partition plate is providedwith a ventilation dust slot, and the ventilation and dust removal can be quickly realized under the action of the suction fan. The rotary spray nozzle can spray sterilizing and insecticidal liquid into the compartment to achieve good sterilizing and insecticidal effect, meanwhile, the air inside the wardrobe can be dried by the infrared dryer, thereby avoid the breeding of bacteria and the molding of shoes, and greatly improe the sanitary condition inside the wardrobe.

Disclosed is towel cleaning agent. The towel cleaning agent is prepared from raw materials of, by weight part, 12-26 parts of surface active agent, 4-7 parts of citric acid, 6-9 parts of sodium chloride, 3-7 parts of sulfonic acid, 5-10 parts of cocoanut fatty acid diethanolamine, 6-11 parts of tween-80, 18-22 parts of purified water, 4-7 parts of glycerin, 4-8 parts of hydrophilic solvent, 7-9 parts of sorbitol, 5-7 parts of potassium permanganate, 8-16 parts of rhizoma smilacis glabrae, 6-9 parts of radix sophorae flavescentis and 5-10 parts of jasmine flowers. The towel cleaning agent has good clean ability and germicidal activity, is nontoxic and harmless on a human body, and can sterilize deeply.

The invention provides a bacteriostatic water purifier for providing mineral water by using a water purifying agent. The bacteriostatic water purifier comprises a water pump, filter units, an RO (reverse osmosis) membrane treatment unit and a water storage bucket, wherein the filter units and the RO membrane treatment unit are connected with a water inlet pipe in sequence; the water storage bucket is connected with a purified water outlet pipe of the RO membrane treatment unit; a solenoid valve is arranged on a water inlet pipe of the RO membrane treatment unit; the filter units comprise PP (polypropylene) cartridges, activated carbon cartridges and precision activated carbon cartridges; the activated carbon cartridges are made from activated carbon; the water purifying agent is added to the activated carbon; a return pipe is also connected with a wastewater pipe of the RO membrane treatment unit and is connected to the water inlet ends in front of the filter units connected with the water inlet pipe; water outlet pipes are connected with the water outlet ends of the filter units and can be used for directly discharging water coming out of the filter units; the shells of the filter units and the RO membrane treatment unit are made from KDF, activated carbon and medical stone materials. The bacteriostatic water purifier achieves the beneficial effects of prolonging the service life of an RO membrane, simultaneously providing mineral water and purified water, implementing bacteriostasis and reducing the energy consumption and the wastewater output.