77results about How to "HEPA" patented technology

The invention relates to an integrated sewage treatment device with high efficiency and low consumption and a treatment method, and belongs to the field of sewage treatment. The integrated sewage treatment device comprises a pretreatment unit, a multi-oxidation-deoxidation environment coupling biological reaction pond unit and a deep treatment unit sequentially connected. The multi-oxidation-deoxidation environment coupling biological reaction pond unit adopts a three-stage anoxia-aerobiotic alternating reaction pond filled with a circular composite glass ball porous microbial carrier. The deep treatment unit comprises a filter cloth dynamic film biological reaction pond and first and second dynamic films. Sewage is treated through the devices sequentially. The device provided by the invention cannot only remove carbon containing organic matters, but also has good nitrogen and phosphorus removal capacity.

The invention discloses a design of a reflective wave strip sheet with a single-stage diffraction characteristic and a manufacturing method thereof. The reflective wave strip sheet comprises a transparent substrate; and multiple high-reflectivity circular elements which are formed on the aforementioned transparent substrate. The aforementioned circular elements are randomly distributed in elliptical rings of the reflective wave strip sheet and are not intersected. Radiuses of the circular elements change along with size of width of the elliptical rings. The range of the radiuses of the elements arranged between the (n-1)th and nth (n is an integer greater than 1) rings is [rnmax, rnmin], wherein rnmax=(an-an-1) / 2, rnmin=(bn-bn-1) / 2, an in the formula is the long axis of the nth ring line, and bn is the short axis of the nth ring line. The reflective wave strip sheet only has zero-order and positive and negative one-order diffraction so that high-order diffraction can be effectively inhibited and harmonic pollution can be eliminated. Meanwhile, the reflective wave strip sheet has a binary structure characteristic so that the reflective wave strip sheet is easy to manufacture and realize. The reflective wave strip sheet with the single-stage diffraction characteristic has characteristics of integrating dispersion, focusing and higher harmonic inhibition so that the reflective wave strip sheet can act as an optical element for leading edge science, such as soft X-ray light source focusing, monochromatization and spectral analysis.

The invention discloses an improved-canny-operator-based part image edge extraction method. A part color image is obtained and the obtained part color image is converted into a grey-scale map; frequency-domain filtering is carried out on the grey-scale map by using Fourier transform; with prewitt operator templates in four directions, convolution sharpening is carried out on the filtered grey-scale map to obtain a maximum gradient graph of the image; a grey level histogram of the maximum gradient graph is calculated, a threshold T is obtained by using a lowest point method, the grey-scale map is divided into two regions by using the threshold T, the two regions are processed by using an OTSU method to calculate a high threshold and a low threshold; and then binarization of the grey-scale map is carried out based on the high threshold and the low threshold, with a binary image generated by the high threshold as an edge base, edge base connection is carried out by using a binary image generated by the low threshold to obtain a complete edge binary image. Therefore, the edge extraction precision is improved; the high and low thresholds are generated adaptively; and the efficiency is improved.

The present invention discloses a function ceramic material for efficiently filtering radioactive iodine and cesium, and a preparation method thereof. The material is prepared through the following steps that: industrial sludge and clay are adopted as main materials, active carbon or wood chips, calcium hydroxide or calcium carbonate, iron powder or iron oxide powder, liquid paraffin and other auxiliary materials are matched, processes of mixing, stirring, granulation and the like are performed, and sintering in performed in an oxygen deficiency atmosphere or a reduction atmosphere to prepare the material. The function ceramic material has characteristics of porous property, rich pores, large specific surface area, strong absorption capacity, high water filtration flow, efficient removal and immobilization of radioactive iodine and cesium in nuclear wastewater, and easy shape and size adjustment, and can be used for purification treatments of nuclear wastewater and medical radioactive wastewater.

The invention discloses a multifunctional polypropylene melt-blown material and a preparation method thereof. The multifunctional polypropylene melt-blown material is prepared from the following raw materials: 97.8%-99.5% of polypropylene, 0%-0.3% of an electret, 0%-0.2% of an antibacterial agent, 0.5%-1% of an initiator, 0%-0.3% of a compatilizer, 0%-0.2% of an antioxidant and 0%-0.2% of a lubricant. The preparation method comprises the following steps: mixing the above raw materials, conducting stirring at a high speed until the raw materials are uniformly mixed, extruding the formed mixtureand the initiator by a double-screw extruder, and carrying out granulating to obtain the multifunctional polypropylene melt-blown material. According to the preparation method of the multifunctionalpolypropylene melt-blown material, electret master batch does not need to be additionally added, the burdening and mixing links of the melt-blown material and the electret master batch are omitted, the problem of uneven dispersion of the electret master batch is avoided, and electret and antibacterial effects are improved. The multifunctional polypropylene melt-blown material disclosed by the invention has efficient and long-term electret and antibacterial functions, and is suitable for a melt-blown process.

The invention belongs to the technical field of printing and dyeing wastewater treatment, in particular to a printing and dyeing wastewater treatment device which comprises a water filtering tank and a rotary filtering mechanism. A tank bottom filter screen is arranged at the bottom of the water filtering tank, the rotary filtering mechanism comprises a rotating shaft and centrifugal filter screen blades fixedly connected onto the rotating shaft, each centrifugal filter screen blade includes a solid blade area and a filter screen area, the solid blade area is arranged at one end of each centrifugal filter screen blade connected with the rotating shaft, and the filter screen area is arranged at the tail end of each centrifugal filter screen blade. The printing and dyeing wastewater treatment device is compact in structure, space occupancy is decreased, blocking of the filter screen can be avoided, and printing and dyeing wastewater can be efficiently pretreated.

The invention relates to an air conditioner based on bionics which aims to solve the problem that an existing air purifier has great limitation. According to the air conditioner based on the bionics, the structure of a two-layer filter screen is utilized for simulating the human body nasal cavity, macromolecule particles are filtered out, the filter screen is easy to replace, the service life is more than 15 years, wind resistance is small and is about one tenth that of a common filter screen purifier, and the energy efficiency ratio is over 4.0. A sterilization tank is utilized for humidification and sterilization, viruses, bacteria and microorganisms in air are filtered out efficiently, the filtration rate is up to 99.97%, and the cost is low. A heat emitting lamp heats the air, supplied wind is warm, wet, clean and suitable for human body breathing, the whole device simulates the human body breathing technology, and the warm, wet and proper wind and the suitable air are supplied to people.

The invention discloses an oil fluid filter with a magnetic adsorption mechanism. The oil fluid filter comprises a shell, a filter cartridge and a magnetic adsorption mechanism, wherein the outer part of the shell is wrapped by the magnetic adsorption mechanism; the magnetic adsorption mechanism sequentially comprises a first magnetic shielding sleeve, a magnet and lifting mechanisms from inside to outside; and the outer part of the magnet is wrapped by a second magnetic shielding sleeve. Due to the matching of all the parts, influences of the magnetic field of the magnet to other surrounding equipment can be avoided while iron wear debris in an oil fluid can be efficiently eliminated, and the aims of backflushing the filter cartridge and ensuring the filtering effect of the filter cartridge can also be achieved while the iron wear debris adsorbed on the shell can be automatically eliminated.

The invention discloses a novel photocatalytic air purifier which comprises an air purifier body. The air purifier body comprises a shell. The shell is provided with an air inlet and an air outlet. A primarily efficient filter screen, a high-performance nanofiber filter screen, a visible LED light source, a visible light response photocatalyst filter screen, a circulation fan and a humidification device are sequentially arranged in the shell in the air flowing direction. The air inlet is formed in the side wall of the shell, and the air outlet is formed in the top of the shell. The humidification device is arranged below the air outlet. An electrical circuit and an external power line are further arranged in the shell. According to the purifier, particulate pollutants and virosome of different sizes in air can be efficiently filtered out and intercepted, VOCs of different kinds in the air can be effectively degraded and mineralized, and the humidity of the purified air can be adjusted.

The invention provides a composite light conversion layer substrate for a Micro-LED array device and a preparation method of the composite light conversion layer substrate, and relates to the technical field of Micro-LED display. The substrate comprises a first substrate body, a filter film layer arranged on the first substrate body, a PDMS film layer arranged on the filter film layer, photoresistisolation gates arranged on the PDMS film layer, red light quantum dot film layers and green light quantum dot film layers, wherein the red light quantum dot film layers and the green light quantum dot film layers are arranged in grooves between the photoresist isolation gates respectively. According to the composite substrate, blue light emission of the Micro-LED blue light excitation light source can be effectively filtered out; meanwhile, due to the introduction of the flexible PDMS film layer in the composite substrate, the coffee ring effect occurring after ink-jet printing of a low-concentration quantum dot solution is effectively solved, the substrate is inverted above the blue light Micro-LED array, and full-color display based on the blue light Micro-LED array is achieved.

The invention relates to a nano SiO2 modified PTFE needle blend filter material and a preparation thereof and application thereof. The nano SiO2 modified PTFE needle blend filter material is obtainedby opening, mixing, combing, lapping, pre-needling and main-needling nano SiO2 modified PTFE short fibers and fibers A. The preparation method comprises the steps of preparing the nano SiO2 modified PTFE short fibers and preparing the nano SiO2 modified PTFE needle blend filter material. The nano SiO2 modified PTFE needle blend filter material possesses excellent friction electrification auxiliaryperformance so that fine particulate matters can be effectively captured; and the nano SiO2 modified PTFE needle blend filter material has the advantages of high efficiency, low resistance, stable physical and chemical property, long service life and the like.

The invention belongs to the technical field of printing and dyeing wastewater treatment and particularly relates to a wastewater treatment device. The wastewater treatment device comprises a water filtering tank and a rotary filtering mechanism, wherein the bottom of the water filtering tank is provided with a bottom filter screen; the rotary filtering mechanism comprises a rotating shaft and centrifugal filter screen blades fixedly connected to the rotating shaft; every centrifugal filter screen blade is composed of a solid blade area and a filter screen area, the solid blade area is arranged at one end of the centrifugal filter screen, which is connected to the rotating shaft, and the filter screen area is arranged at the tail end of the centrifugal filter screen blade. The wastewater treatment device is compact in structure, reduces space occupation, avoids blocking of the filter screen and effectively preprocess printing and dyeing wastewater.

The invention relates to a water membrane activated carbon filter tank, which is characterized by comprising a shell, an air inlet, an air outlet, a spraying pipe, water membrane filter plates, a water inlet, a water collecting sump, a water outlet and an activated carbon filter. The shell is used for accommodating the spraying pipe, the water membrane filter plates, the water collecting sump and the activated carbon filter plate; one end of the shell is provided with the air inlet, and the other end is provided with the air outlet; the membrane activated carbon filter tank is mounted to an exhaust pipe through the air inlet and the air outlet; on the side near the air inlet, the shell is sequentially provided with the spraying pipe and two layers of water film filter plates; the upper part of the spraying pipe is provided with the water inlet; the bottoms of the two layers of water film filter plates are provided with the water collecting sump; the outlet of the water collecting sump is provided with the water outlet; and on the side near the air outlet, one end face of the shell is provided with a notch, and the activated carbon filter plate is inserted in the notch. The invention can be widely applied to flame retardant protective performance test of clothing.

The invention discloses a fiber cladding power filter, which comprises a double-cladding fiber, the cladding light of which is to be filtered, and a heat sink. The heat sink is internally provided with an inner hole; a water channel layer is arranged around the inner hole; the side wall of the heat sink is provided with a water inlet and a water outlet communicated with the water channel layer; the two ends of the heat sink are respectively provided with a fiber fixation member; and the fiber fixation members enable a fiber, one section of which is stripped to expose an inner cladding, in the double-cladding fiber, the cladding light of which is to be filtered, to be placed and sealed in the heat sink. The manufacturing method of the fiber cladding power filter comprises the following steps: S1) stripping one section of an outer cladding of the double-cladding fiber, the cladding light of which is to be filtered, to expose the inner cladding; S2) processing the exposed inner cladding; S3) heating the exposed inner cladding processed in the step S2); and S4) packaging the double-cladding fiber obtained after heat diffusion treatment in the step 3) into the heat sink. The cladding refractive index of the double-cladding fiber is modified, and laser in the cladding can be filtered efficiently and reliably.

The invention relates to an image-based wood region and main color extraction method. Through sample collection, proper parameters can be generated according to different production environments and shooting conditions, and a tedious parameter adjustment process is not needed. According to the method, pixel-level and irregular target area extraction can be achieved, irrelevant colors are efficiently filtered out, and therefore wood main color extraction is achieved.

The invention discloses a blue-green algae separation apparatus for sewage treatment. The blue-green algae separation apparatus for sewage treatment is characterized in that the separation apparatus comprises a separation pipe, a pulse vibrator and an algae collection pipeline, filter pipes are arranged in the separation pipe in a sleeving manner, the pulse vibrator is fixed on the pipe wall of the separation pipe, the algae collection pipeline also comprises algae collection branch pipes which communicate with the separation pipe, and the algae collection pipeline realizes pipeline communication with a main through the algae collection branch pipes. An adopted novel method combining pulse electromagnetic valves with pulse vibration can efficiently filter blue-green alga in a water body when the algal bloom of the blue-green alga breaks out. During use, sewage is directly introduced into through a water inlet, and is discharged out after being filtered, and blue-green alga can be effectively filtered. Moreover, operation is convenient, and workers only need to collect blue-green alga on time. The apparatus provided by the invention has a remarkable significance in application and popularization for the large-scale treatment of blue-green algae sewage.

The invention relates to a novel antibacterial far infrared mask which comprises an inner layer of anion fibers, a middle layer of N95 filter materials and an outer layer of antibacterial fibers, wherein the upper part of the middle layer of the N95 filter materials is provided with the outer layer of the antibacterial fibers, while the lower part of the middle layer of the N95 filter materials is provided with the inner layer of the anion fibers; and the inner layer of the anion fibers, the middle layer of the N95 filter materials and the outer layer of the antibacterial fibers are pressed and compounded. The mask at least has the following advantages of small breathing resistance, light weight, sanitary wearing and convenience for maintenance. In the invention, the middle layer is made of the N95 filter materials and can be used for efficiently filtering out various powders, bacteria and germs in the air; the inner layer is made of the negative oxygen ion fibers containing 4,400 negative oxygen ions / cubic centimeter and can be used for increasing the oxygen content, and after being used for a long term, the mask is not stifling and oppressed, and the oxygen content is high; and the outer layer is made of the antibacterial fibers and can be used for effectively stopping bacteria and germs from migrating and penetrating through fiber air gaps, meanwhile, the purpose of killing bacteria and germs can be achieved through breaking the metabolism of bacteria.

The invention discloses a preparing method of a green compound filter core material for an indoor air purifier. The preparing method includes the following steps that 1, non-wood fiber pulp and mercerized pulp are obtained through pulping; 2, the non-wood fiber pulp is made into an upper layer filter core material; 3, the mercerized pulp is made into a lower layer filter core material; 4, an interlayer wet method compound process is adopted to press and compound the upper layer filter core material and the lower layer filter core material into the composite filter core material in a moistened state; 5, the composite filter core material in a moistened state is dried and formed to obtain the green compound filter core material for the indoor air purifier, wherein the pore diameter of the green compound filter core material is 0.5-0.75 micrometers. 100% of plant fibers of different types are adopted, the filtering quality of the filter material is improved to the maximum, the green compound filter core material which is used for the indoor air purifier and is balanced in comprehensive filtering performance, high in biodegradability, environmentally friendly and excellent is trial-produced, which is of great significance in research and development of domestic compound filter core materials.

The invention relates to a preparation method of ligustrum lucidum polysaccharide; the process takes dry residue after ligustrum lucidum extracts triterpenoid as the raw materials, soaked in 30 to 50DEG C warm water with 3 to 5 times of amount every time (V / M) for 1 to 2h, repeatedly pressed for 2 to 3 times; the combined pressed liquid is concentrated into extract at low pressure and washed by absolute ethyl alcohol for 3 times, to prepare solid deionized water to be re-dissolved; and protein is removed through a Sevage method, deproteinized solution is concentrated by an ultrafilter film, to prepare the product. The process has the advantages of simple operation, lower cost, higher purity and facilitation to mass production operation.

The invention relates to a preparation method of mannitol. The technique comprises the following steps: extracting glossy privet leaf of triterpenic acid as a raw material, using 15-20 times (V / W) of deionized water to extract for 1.5-2 hours, carrying out ultrafiltration on extracting solution by an ultrafiltration membrane system with molecular weight cut off of 20000, heating and concentrating permeate till the relative density is 1.30-1.32, standing and crystallizing, using the deionized water to dissolve coarse crystal, boiling for 5 minutes, filtering with heat, recrystallizing for three times, using ether to clean, and drying at the temperature of 80-90 DEG C to obtain a product. The technique has simple operation, lower cost and higher purity and is beneficial to large-scale production operation.

The invention relates to a medical sterile water treater which comprises a water inlet, a water outlet, a housing and a rough filtering device, wherein fiber vertical bars are arranged in the rough filtering device, a biological film is connected behind the water inlet, the fiber vertical bars are uniformly distributed behind the biological film, a layer of rough gauze is coated on the fiber vertical bars, a plastic sleeve is coated the rough gauze, the side surface of the housing is provided with the water outlet, and a back washing port corresponding to the water inlet is arranged on the housing. The medical sterile water treater has the advantages of being simple and practical in structure, small in area occupation and suitability for various environments, and the filtered water is clean and reaches the standard of sterile water.

The invention relates to an efficient filtering device for purifying and disinfecting air. According to the device, an electrostatic primary filtering net, a plasma polymerizing filtering layer and a functional ceramic compound filtering net are sequentially arranged in a sealed air flue by layers; an air exchanging device is arranged at one side of the functional ceramic compound filtering net; a combined power supply is used for providing electric power for the electrostatic primary filtering net, the plasma polymerizing filtering layer and the functional ceramic compound filtering net. The three layers of filtering layers are mounted in the sealed air flue provided with the air exchanging device; the efficient filtering device can be used for efficiently filtering inhalable particles in the air and effectively degrading volatile organic compounds in the air and organic chemical components of toxic and harmful gases, and killing bacteria and viruses; the whole device is simple in structure, easy to manufacture, convenient to maintain and high in energy efficiency ratio and can be widely applied to various fixed or movable fields including office buildings, family rooms, industrial and mining enterprises, underground construction, means of transportation and the like.

The invention discloses a high-efficiency machine oil filter, and relates to the technical field of machine oil filters. The high-efficiency machine oil filter mainly consists of a shell, an upper cover, a filter element, a magnet set, a bypass valve, a dirt gathering body and the like. The machine oil filter adopts a special structure formed by three magnet sets, can efficiently filter away magnetic impurities in machine oil, reduces the burden of the filter element, and prolongs the life; and the dirt gathering body is mounted at the bottom of the shell for remaining one part of filtered impurities in the dirt gathering body, so that the impurity passing quantity during opening of the bypass valve is reduced, and the engine damage is reduced.

The invention relates to an air filtering absorber. The air filtering absorber is of a cylindrical combined type structure, and is mainly composed of a filtering absorber housing, a paper filer, and an active carbon adsorption layer; the filtering absorber housing is composed of an internal pore plate, an external pore plate, an internal screen net, an external screen net, a pressing pad, and a sealing plate; the paper filter is composed of a primary efficiency filtering layer, a high efficiency filtering layer, and a paper filter internal pore plate. The air filtering absorber adopts the cylindrical combined type structure, resistance is low, adsorption area is large, multi-stage adsorption is realized, purifying capturing efficiency is high, high efficiency filtering material impregnated activated carbon is adopted, the air filtering absorber is invented based on pure physical principles, no energy consumption is caused, maintenance is simple and convenient. The air filtering absorber is suitable to be used in sealed spaces such as sealed defense works, vehicles, ships, and shelters, can be used for filtering radioactive ash, chemical toxins, and biological toxins, and purifying rate is increased to be 99.999% at a nominal air delivery.

The invention discloses a high pressure disc tube type nanofiltration membrane salt separation system, and relates to the technical field of environmental protection sewage treatment. The high pressure disc type nanofiltration membrane separation system comprises a sewage storage tank, a pre-filter and modules which are connected in sequence; at least one set of the modules is arranged; each module comprises at least one high pressure disc tube type nanofiltration membrane column, the operating pressure of the high pressure disc tube type nanofiltration membrane column is 30 to 120 bar; and the module is respectively connected with a filtration liquid storage tank and a concentrate liquid storage tank. The high pressure disc tube type nanofiltration membrane salt separation system is especially suitable for treating a high salt concentrate containing sodium sulfate and sodium chloride, by use of the characteristic of high pressure operation, the sodium sulfate is efficiently removed and concentrated, and the sodium chloride is efficiently filtered, so that the sodium sulfate and the sodium chloride are separated, the industrial-grade sodium sulfate and the industrial-grade sodium chloride are efficiently recovered respectively, generation of hazardous waste can be reduced, and the recycling of resources is promoted.

The invention provides a multi-functional ultra-micro-calcium anion filter screen and a preparation method thereof and aims to solve the problem that an existing air conditioner filter screen is poor in filtration effect. The multi-functional ultra-micro-calcium anion filter screen, from top to bottom, is sequentially provided with a first aluminum alloy filter screen, a superfine fiber static filter screen, a nanometer ultra-micro-calcium far infrared filter layer, an anion filter layer and a second aluminum alloy filter screen, wherein the first aluminum alloy filter screen and the second aluminum alloy filter screen are mutually fixed to form a filter screen frame; the superfine fiber static filter screen, the nanometer ultra-micro-calcium far infrared filter layer and the anion filter layer are all positioned in the filter screen frame; the third layer and the fourth layer each adopt a sheath-core compounding technology; low-melting-point polymer and high-melting-point polymer double-component sheath-core wires are knitted so that the filter screen is adhered at intersected points of warp and weft wires; the intersected points of the warp and weft wires are adhered, so the filter screen is not affected by a friction force during a self-cleaning process, meshes are protected from deformation, stable filtration efficiency is maintained, and resistance is not increased.

The invention provides a webpage information autonomous searching and screening system within the specified demand range. A solution is designed for autonomous searching and screening of the specifieddemand range on the Internet, and firstly, a system solution conforming to the monitoring service characteristics of the specified demand range of the Internet is planned for the working requirementsof autonomous searching and screening of webpage data; secondly, each key technology for autonomously searching and screening the network specified demand range information is researched, developed and realized, and some key technologies are improved and optimized, so that the system better meets the actual demand of the specified demand range monitoring service; thirdly, testing and performanceindex evaluation are carried out on the webpage information autonomous searching and screening system, the practical reliability of the system is verified through analysis of a test conclusion, an expected effect is achieved, and what is proved is that the webpage information autonomous searching and screening system has high practical value and has a good reference value for implementing networkmonitoring work in a specified demand range.

The invention relates to a light noise filtering-out apparatus for an optical water quality measurement system. The light noise filtering-out apparatus comprises: a signal modulation unit for modulating the light intensity of a light signal emitted by a light emitting unit; a reference signal conditioning unit for carrying out shaping and phase shift on the modulated signal copy obtained from thesignal modulation unit to provide a phase-consistent reference signal; a coherent detection unit for receiving the reference signal transmitted by the reference signal conditioning unit and a detection light signal transmitted by a light receiving unit, and filtering out the stationary light noise in the detection light signal; an autocorrelation unit for receiving the signal output by the coherent detection unit and carrying out autocorrelation operation according to a signal period; a dynamic observer for receiving the signal output by the autocorrelation unit, filtering out the non-stationary light noise in the signal, and outputting a current state vector; and an effective light intensity output unit for extracting a light intensity variable from the current state vector, and outputting an effective light intensity after filtering out the stationary light noise and the non-stationary light noise. The light noise filtering apparatus of the present invention can effectively filter out stationary and non-stationary environment light noise.

The invention discloses a sunlight-driven water purifying material and a preparation method and application thereof. The sunlight-driven water purifying material comprises a framework structure made of a hydrophilic material, and polyN-isopropylacrylamide hydrogel is grown on the framework structure and coated with a coating film having molecular or ionic screening effect. By uniformly coating a graphene oxide nanofilm on the periphery of the polyN-isopropylacrylamide hydrogel, the material can be endowed with ability of filtering ions and molecules; a graphene oxide coating can convert incident light into heat energy when receiving sunlight irradiation to heat the hydrogel inside to extrude moisture absorbed by the hydrogel and evaporate the same at the same time, so that water treatmentefficiency of the material is improved greatly.

The invention discloses a portable water purifier. The portable water purifier comprises a bottle body, a bottle cap arranged at the top of the bottle body, and a filter core arranged in the bottle body; the top of the filter core is connected with a water outlet tube; the bottom of the filter core is provided with a water inlet tube; and the filter core sequentially comprises a stainless steel screen, a reverse osmosis membrane, triiodide resin, maifan stones, active carbon, PP cotton and a lower stainless steel screen. The portable water purifier can highly-effectively remove bacteria, and can effectively remove multiple pathogens, bacteria and protozoa cysts, such as Escherichia coli, cholera bacteria and Bacillus anthraci; the portable water purifier highly-effectively filters out organic precipitates, iron rusts, suspensions, dusts and other impurities from water; the portable water purifier effectively removes soluble heavy metals from water, such as lead, mercury and arsenic; the portable water purifier highly-effectively removes residual chlorine from water, improves the mouthfeel, and prevents chronic invasion of trihalomethane and other strong oncogenic substances; and the portable water purifiers highly-effectively softens water and inhibits growth and breeding of microorganisms.