331results about How to "Improve water purification ability" patented technology

A treatment system provides treated or softened water to a point of use by removing at least a portion of any undesirable species contained in water from a water source. The treatment system can be operated to reduce the likelihood of formation of any scale that can be generated during normal operation of an electrochemical device. The formation of scale in the treatment system, including its wetted components, may be inhibited by reversing or substituting the flowing liquid having hardness-causing species with another liquid having a low tendency to produce scale, such as a low LSI water. Various arrangements of components in the treatment system can be flushed by directing the valves and the pumps of the system to displace liquid having hardness-causing species with a liquid that has little or no tendency to form scale.

The invention supplies a new type adsorbent--mixed oxide of iron and manganese / diatomite preparation, use and regeneration method, belongs to the treatment of technology. The method used the soluble ferrous permanganate and salt as raw materials, respectively prepared the solutions, after adequate lye into permanganate solution, mixed two salt solutions, by adding diatomite particles, full oscillation, standing aging, neutralize, washing and drying to get the manganese oxide / silicon algae absorbent. The adsorbent is larger than the surface area and good adsorption properties can be used to remove arsenic in water pollutants (especially tervalence arsenic), and the adsorption surface activity of the saturated absorption of pollutants can be directly passed to load manganese oxide compound to regeneration.

The invention discloses nano biological filler for purifying aquaculture wastewater in a biological filter tank and a preparation method of the nano biological filler. The biological filler comprises an EM rejuvenation solution and an adsorption carrier of the EM rejuvenation solution, wherein the EM rejuvenation solution is a product obtained by performing mixed fermentation on an EM stock solution, molasses and deionized water; the adsorption carrier is obtained by performing mixed pressing on composite nano powder, kaolin powder and modified bentonite; the composite nano powder is a product obtained by performing mixing and high-temperature sintering on nano-level aluminum oxide, titanium dioxide and silicon dioxide; modified bentonite is prepared from sodium diethyldithiocarbamate modified original soil. The preparation method comprises the following steps: pressing adsorption carrier particles; fermenting to obtain the EM rejuvenation solution; dipping the EM rejuvenation solution by using the adsorption carrier to obtain the nano biological filler. The obtained nano biological filler is high in pore volume, high in cell adsorption capacity, large in specific surface area and strong in stability, has a good treatment effect on aquaculture sewage, and can be used for rapidly removing ammonia nitrogen, phosphorus and heavy metal ions in an aquaculture water body.

The invention relates to a microbial agent for purifying river wastewater and a preparation method of the microbial agent. The microbial agent comprises the following components in parts by weight: 20-40 parts of bacillus natto, 10-30 parts of nitrobacteria, 5-15 parts of white-rot fungi, 5-15 parts of pseudomonas and 10-40 parts of photosynthetic bacteria. The microbial agent is well-adapted and has the capabilities of fast forming dominant bacterial communities and replenishing indigenous rhizobia to the water body; and the microbial agent can be used for reducing the COD (Chemical Oxygen Demand), NH3-H, total nitrogen, TP (Total Phosphorus) and the like, removing odor and color and producing high-activity bio-enzyme to suppress the growth of harmful bacteria and acceleratively decompose residual baits as well as animal and plant residues, and a remarkable water quality purifying effect is achieved.

The invention provides a paddy field recession water purification device placed in a ridge of a field. The paddy field recession water purification device is characterized in that a framework of a single water purifying device is constructed by using reinforcing steel bars with the diameter of phi10, plastic plates are arranged at two sides of the framework, steel wire meshes are arranged at the other four faces of the framework, a plastic gate is arranged at the front end of the framework, the interior of the device is partitioned into a part A and a part B by steel wire meshes with fine density, the volume ratio of the part A to the part B is 2: 1, the steel wire mesh of the part A is a high-density steel wire mesh and is filled with bio-filler balls, the steel wire mesh of the part B is a fine-density steel wire mesh and is filled with activated carbon, the front and rear faces of the single water purifying device are designed to be openable, and the single water purifying device or two single water purifying devices are placed in the ridge of a drainage end of the paddy field and are fixed by wood piles. The paddy field recession water purification device has the advantages that the traditional drainage manners that the traditional paddy fields directly drain paddy field recession water through opening gates and the water is not purified are improved, and harmful substances, such as nitrogen, phosphorus, organic substances and hardly-biodegradable pesticide residues, can be effectively trapped from recession water of cultivated field.

The invention discloses a solar power nitrogen and phosphorus removal biological box array used for in-situ purification for eutrophic slow flow water body. The biological box array uses longitudinal array or other array combination, and the biological box array is composed of different functions of biological box monomers with similar shape. The biological box monomer comprises a body framework, a floating body, a photovoltaic power system, an aeration or flow pushing facility and a biological box; the biological box body is a stainless steel box body or a plastic mesh cage, and combined biological carrier is filled in the box body. The biological boxes are divided into aerobic biological boxes and anoxic biological boxes which are combined into the array in a certain mode. An aeration plate is arranged at the bottom of each aerobic box body, and the arrangement of the flow pushing facility is determined according to the water flow. The solar power nitrogen and phosphorus removal biological box array used for the in-situ purification for the eutrophic slow flow water body uses the combined biological carrier with special proportion and uses step-by-step nitrification and denitrification, the filler use ratio can be effectively improved, and accordingly the purification efficiency can be improved. The solar power nitrogen and phosphorus removal biological box array does not depend on the plant, and the disadvantage that a plant type floating island is difficult to manage is avoided. The solar power nitrogen and phosphorus removal biological box array is not limited by the power supply condition by means of using solar clean energy.

The invention discloses a purifying device of backwash, aeration type hidden flow marshland water body and a method of purifying water body, wherein the whole purified pool display cube box; the separating pool separate the pool as downward pool and upper pool; the filling base material pack evenly in the pool; planting amphibious plant on the upper; setting cloth water pipe on the upper of the upper pool; making the upper of adjusting pool higher than purifying pool; setting inlet pipe and water-feed pump on the one side of the adjusting pool; setting admitting pipe and admitting pipe on the upper of the upper pool; setting aeration machine on one side of the purifying pool. The invention possesses high load factor, small plot area and good treatment effect, which can improve treatment effect.

The present invention relates to sewage treatment and urban water supply treatment, in the concrete, it is an ecological safe composite high-effective flocculant which can be serially used for making pretreatment before water supply, industrial waste water treatment and domestic sewage treatment. The flocculant uses iron salt, starch, anhydrous ethyl alcohol and sodium hydroxide as raw material, in which the iron salt and corn starch are main component, anhydrous ethyl alcohol or water can be used as reaction solvent, the sodium hydroxide can be used for making modification of corn starch, the mass ratio of iron in the iron salt and starch is 1:1-1:100. Its preparation method includes: (1) modification of corn starch and (2) compounding reaction to obtain whitish yellow or reddish brown emulsion-live flocculant.

The invention provides a high efficiency fluidization upward flow multilayer composite filter material biological filter tank coupled with ozonation and a water treatment method thereof, relating to a biological filter tank and a water treatment method using the biological filter tank. The biological filter tank is composed of an upper filter material, a medium filter material, a lower filter material and a supporting layer, wherein the upper filter material is active carbon, anthracite or biological ceramsite, the medium filter material is modified zeolite, natural zeolite or synthetic zeolite and the lower filter material is a phosphorus functional material. The filter tank is characterized by fast start, a complex and stable biological phase, great biomass, high activity, strong impact resistance, a filter material expansion rate of 0% to 50%, small resistance at the head of the filter tank, high mass transfer efficiency of materials, oxygen and pollutants, a high utilization rate of filter layers and filter materials and small possibility of occurrence of hardening of the filtering materials. The filter tank is applicable to treatment of raw water in which the concentration of water source phosphorus, ammonia nitrogen and organic pollutants fluctuates and can stably operate at a low temperature.

The invention discloses a submerging bed-floating bed coupled water purifying device. The submerging bed-floating bed coupled water purifying device comprises a submerging bed and a floating bed which are made of UPVC (hard polyvinyl chloride) tubes, wherein the submerging bed comprises upper and lower rectangular frames which are the same in shape; a plurality of perpendicular connecting tubes are arranged between the two rectangular frames; a plurality of horizontal connecting tubes are arranged in the lower rectangular frame; the frames are internally communicated; a floating block capable of being spliced is embedded into the lower rectangular frame, and a planting pot in which submerged plants are planted is arranged on the floating block; a floating block capable of being spliced is also embedded into the floating bed, a planting pot in which emergent aquatic plants are plants is arranged on the floating block, and artificial seaweeds are suspended between adjacent floating blocks of the floating bed; the submerging bed is placed on the center of the inner outline of the floating bed; a connecting rope is arranged between the submerging bed and the floating bed. According to the submerging bed-floating bed coupled water purifying device disclosed by the invention, positions, in water, of submerged plants are regulated by internally watering and pumping the submerging bed, so that the positions of the submerged plants are changed along with ecological niches of water level, transparency and the like, and a natural water environment is simulated to a greatest extent. The water plant planting amount is large, the varieties are rich, the survival rate is high, and the restoration of water body ecological community is facilitated.

The invention disclosed a method for preparing, using and regenerating novel antimony removing adsorbent-Fe-Mn-Al composite oxide / zeolite antimony removal adsorbent, belonging to the technical field of water treatment application. The Fe-Mn-Al composite oxide / zeolite antimony removal adsorbent also has oxidation and adsorption properties and has a moderate pore structure and rich active adsorption sites, therefore, excellent adsorption efficiency is provided to trivalent antimony and pentavalent antimony in a broad-spectrum pH range. The material can be used for removing antimony after being filled into an adsorption reactor and can be regenerated through a simple method after adsorption is saturated, and the operation is simple and practical.

The invention provides an on-site purification system for urban black and smelly inland rivers, wherein a riverbed is directly used as a treatment space of polluted river water, a section of concrete embankment is arranged in a riverway along the flow direction, and the riverway is separated into two parallel areas of an area for river water treatment and an area for emergency drainage or passing, wherein in the area for river water treatment, four treatment units of a lift pump well, a reaction area, a sediment area and an aeration area are arranged and are communicated with one another along the flow direction, so a complete water treatment facility is formed, the reaction area consists of an ozone contact oxidation zone and a flocculation zone, and the tail end of the aeration area adopts a drop dam mode; and the area for emergency drainage or passing is used as an emergency drainage channel for a flood period and also serves as a passing channel of a pump dredger. The on-site purification system utilizes the treatment facility which is built in the riverbed to on site purify the quality of the urban inland rivers which are black and smelly due to the gathering of a large amount of domestic sewage, has a simple method and a simple structure, does not occupy lands, does not influence flood flowing, and has a good treatment effect.

The invention discloses a wastewater treatment process. The method comprises the following steps: adding limestone into a water sample, stirring, adjusting the pH value, and removing precipitates by filtering; adding an oxidizing agent for decoloration into the filtered wastewater, adding a composite flocculant, stirring, standing, and carrying out settling separation; and filtering the wastewater again, adding activated carbon for filtration, and filtering the obtained product again. The process disclosed by the invention is simple; due to the adoption of the composite flocculant, the cost is reduced, and the treatment effect is improved; and the process is convenient in raw material source, high in wastewater treatment efficiency, good in water purification effect, rapid in flocculation speed, and easy to operate. In the process of treating high-concentration organic wastewater subjected to combined discharge, the COD removal rate can reach 35-70%, therefore, the process disclosed by the invention has a great popularization and application value in the aspect of purification treatment of wastewater.

The invention provides an efficient compound iron-based phosphorous-removing adsorbent as well as a preparation method, an application method and a regeneration method thereof, relates to a solid adsorbent composition, and particularly relates to a solid adsorbent composition for adsorbing phosphorous. The invention aims at providing the efficient compound iron-based phosphorous-removing adsorbent which is simple to prepare, has a good adsorption effect and is convenient to regenerate, as well as the preparation method, the application method and the regeneration method thereof. The efficient compound iron-based phosphorous-removing adsorbent comprises an iron-based oxide and a carrier; the mass ratio of the iron-based oxide to the carrier is (1-10) to 100. The preparation method provided by the invention is simple and easy to operate; the prepared efficient compound iron-based phosphorous-removing adsorbent has good adsorption efficiency on phosphorous in a wide spectrum pH value range; good phosphorous-removing capability can be recovered through simple regeneration operation. The efficient compound iron-based phosphorous-removing adsorbent can be used for the field of materials for removing pollutants including phosphorous in domestic sewage and industrial sewage through an adsorption method.

A water quality in-situ purification method in river estuary relates to a water quality purification method in river estuary, especially relates to river estuary of convergence of lakes and rivers. A deposition pond, a aeration oxidation zone, a facultative pond and a floating island biological purification zone are disposed along rivers flowing into the lake direction in turns in river estuary of the horn-mouth shape region where watercourse crossing rivers and lakes, the method is: a, upstream polluted river water flows into the deposition pond for sedimentation, anaerobic decomposition and plant absorption; b, deposited river water flows into the aeration oxidation zone in order for increasing oxygen content; c, then the river water flows from the aeration oxidation zone into the facultative pond for degradation; d, degraded river water flows into the floating island biological purification zone at last, then the polluted water flows into lake by purification treatment. The invention uses in-situ purification method to process river water, no occupation of watercourse side land, resolving problem of rare land resource in river estuary and difficult to build water quality purification establishment. Key point of the invention provided water quality purification is intensifying absorption of natural hydrophyte and metabolism of microorganism for degrading pollutant in water, the water quality purification effect is obvious and brings no secondary pollution.

The invention belongs to the technical field of environment-friendly materials and particularly relates to a multifunctional ceramic material as well as a preparation method and application thereof. The multifunctional ceramic material is prepared from the following raw materials in parts by weight: 20-30 parts of zirconium sodium phosphate, 10-30 parts of hydrogen-enriched water porcelain, 5-10 parts of negative ion powder, 20-30 parts of modified shell powder, 3-5 parts of an inorganic antibacterial agent, 1-3 parts of three-dimensional graphene, 5-10 parts of activated carbon, 5-10 parts ofcalcium sulfite and 5-20 parts of a binder, wherein the inorganic antibacterial agent is nano-zinc oxide, cerium oxide, titanium oxide and silver oxide; and the binders are hydroxy propyl cellulose and bentonite. The multifunctional ceramic material has the functions of preparing weak base water, hydrogen-enriched water and negative potential water and further has the efficacies of resisting bacteria, removing chlorine and purifying water. The preparation method has the characteristics of easiness in industrial production and good economic benefit; and the multifunctional ceramic material iswide in application field and can be applied to water purifiers, water purifying kettles, water cups, dish washers and humidifier products.

The invention relates to water treatment and application, in particular to an adsorbent for removing heavy metal in water and a preparation method thereof. The adsorbent takes titanium salt and manganese salt as raw materials, the pH value of the raw materials is adjusted to 4 to 10, and the ageing is performed, so as to obtain the adsorbent, wherein the molar ratio of titanium to manganese is (9:1)-(1:3). Titanium and manganese composite oxide prepared by the method is aggregate of nano-particles, has a larger specific surface area, is high in adsorption rate, high in adsorption capacity, and environment-friendly, and can be used for removing heavy metal ion pollutants, such as lead, cadmium, arsenic, chrome, copper, nickel, cobalt, zinc and the like in various kinds of water, such as underground water, surface water and the like.

The invention discloses a modified sodium alginate adsorbing material for tetracycline antibiotics adsorption and a preparation method of the material. The method comprises the following steps that 1,sodium alginate and a solvent are mixed and stirred to be uniform according to the mass volume ratio being (1-3):(97-99), the sodium alginate is fully swelled, ultrasonic defoaming and degassing areconducted, and sodium alginate sol is obtained; 2, the sodium alginate sol is dripped into a metal salt solution with the mass concentration being 1-10 wt% at a constant speed, stirring is conducted,a cross-linking reaction is conducted for 2-24 h, filtering is conducted, drying is conducted, and the modified sodium alginate adsorbing material for tetracycline antibiotics adsorption is obtained.According to the obtained adsorbent, the raw materials are cheap and easy to obtain, the absorbent preparation process is simple, the tetracycline antibiotics removing efficiency is high, after the absorbent is used, the absorbent can be subjected to biodegradation and can be regenerated, secondary pollution cannot occur, and the modified sodium alginate adsorbing material has the good applicationprospect.

The invention discloses a construction method of a lake water purification system. The method includes the steps of: (a) site surveying; (b) site construction; (c) precipitation zone configuration; (d) aeration zone configuration; (e) compounding zone configuration; (f) ecological planting zone configuration; (g) floating island unit establishing; and (h) regional beautification. The method provided by the invention has the advantages of simple construction, short construction period and cost saving, and after construction, the purification system has the functions of water storage, flood control, and water and air purification, can protect biodiversity, adjust microclimate and improve environmental quality, thus laying the foundation for water quality improvement of regional lake water.

The invention relates a device for purifying water quality with two water processing technology for air-float and precipitation switch operating. In the invention, a waterflow hole is opened on middle underpart of contact area baffle plate, an intercommunicating valve is fit on contact area baffle plate of waterflow hole, a pounched water collecting pipe is fit on underpart in casing at separating area, outside end of the pounched water collecting pipe is connected with and end of air-float water discharging valve through the casing, the other end of the air-float water discharging valve is connected with air-float water discharging pipe, a through hole is opened on top-part of pounched lattice wall.

The invention discloses a preparation method high-efficiency water purifying activated carbon, wherein the activated carbon is prepared from the following components by weight percent: 50-70% of petroleum coke, 10-40% of raw coal, 5-20% of a binding agent and 0.5-10% of an activating agent. Specific preparation steps are as follows: (1) respectively weighing petroleum coke and raw coal according to proportion, crushing and uniformly mixing; (2) adding the binding agent according to proportion for briquetting forming to form a briquetting block; (3) performing carbonization treatment in a carbonization furnace; (4) smashing the carbonization material, and uniformly mixing with the activating agent; (5) performing activating treatment; and (6) washing and drying to obtain the high-efficiencywater purifying activated carbon. The preparation method provided by the invention is simple in technological process, and low in operation cost, and the prepared activated carbon product has the advantages of being high in mechanical strength and good in adsorption property, and has a relatively good water quality purifying effect.

The invention discloses field emergency water treatment equipment. The equipment mainly comprises a pre-treater and a drinking water treater, wherein the pre-treater is connected with a suction pipe capable of being put in a water source through a water pump; the rear of the pre-treater is connected to the drinking water treater through a pipeline and at least one drinking water pipe from which clean water can flow out is connected; a filter net capable of filtering to remove visible particles is arranged in the pre-treater; a strainer mainly made of at least one material of a metal net, a non-woven fabric, a plastic and asbestos and capable of filtering big particles is arranged on the head of the suction pipe; and the rear of the pre-treater is connected with the drinking water treater consisting of at least one filtration work chamber, one ultrafiltration work chamber and one ultraviolet sterilization work chamber. The equipment has the characteristics of convenient carrying, simple and convenient filtration, optional moving, no limitation for using environment, realization of filtering function by automatically controlling water pressure without requirements on power supply and water pressure, and the like.

The invention relates to a loach ecological cycle running water culture system. The system comprises a rectangular loach culture pond, a drainage ditch, tubificidae culture ditches, wetland purification trenches and a clean water convergence trench, drainage pipes are arranged on the pool wall of the rectangular loach culture pond, the drainage ditch and the tubificidae culture ditches are arranged at the outer side of one end of the rectangular loach culture pond, and the clean water convergence trench is arranged at the other end of the rectangular loach culture pond. The wetland purification trenches are arranged at one side of the rectangular loach culture pond, and a water body flows through the bottom layers of loach culture pools, the drainage ditch, the tubificidae culture ditches, the wetland purification trenches, the clean water convergence trench and the loach culture pools in sequence. According to the loach ecological cycle running water culture system, by the adoption of the soilless running water culture mode, bottom mud is replaced with submerged plants, the loach inhabiting and ingestion environment is optimized, waste water for culturing loaches is utilized for culturing tubificidaes, living bait is provided for the loaches, a wetland system is utilized for purifying water, the efficient cyclic utilization of the water body is achieved, the loach quality is improved, and the loach output is increased.

The invention provides an active-matrix-reinforced sub-surface flow constructed wetland device and belongs to the technical field of environmental protection. The device comprises a wetland groove and a water-drop aeration step, wherein an opening which is arranged at the front end of the wetland groove is used as a water inlet, an opening which is arranged at the rear end of the wetland groove is used as a water outlet, and the upper end of the water-drop aeration step is connected with the water outlet of the wetland groove. Different pollutant purification functional regions are arranged in the device by segments, and different segments are filled with different active matrixes and equipped with corresponding process conditions so as to comprehensively and greatly improve the efficiency of treating pollutants in slightly-polluted water.

The invention discloses a sewage treatment flocculating agent and a using method thereof. The flocculating agent comprises the following components in part by weight: 690 to 700 parts of alkali solution of which pH range is 8 to 9, 25 to 40 parts of aluminium polychloride, 10 to 15 parts of sodium silicate and 1 part of polyacrylamide. In the sewage treatment flocculating agent and the using method thereof provided by the invention, because the alkali solution of a novel formulation is adopted, the agent cost is reduced, the treatment effect is improved, the preparation process is simple, the raw material source is convenient, the wastewater treatment efficiency is high, the effect of purifying the water is good, the flocculating speed is high, the produced sludge is little, and the flocculating agent and the using method are particularly suitable for treating the mixed discharged sewage in the industries of printing and dyeing, food and the like and have great popularization and application values in the aspects of purification and treatment of printing and dyeing wastewater and other industrial wastewater.

The invention belongs to the technical field of environmental engineering water treatment, and in particular relates to a method for constructing a wet land park type ecological water purification system. The method comprises the steps of: pretreatment of influent water by a polluted water pretreatment system, further purifying treatment of influent water quality by an ecological purification system, beautification and modification of a water body by a landscape lake wet land system, further degradation of water pollutants and final outlet of water reaching the standards into a river. The method provided by the invention combines a non-ecological water quality purification technology and an ecological water quality purification technology, and is a method with treatment in accordance with local conditions and free combination of design technologies. The method not only can ensure the purifying effect on water quality, but also has good ecological landscape effect, entertainment function and environmental education function, thereby effectively solving the problem of instable treatment effect of polluted water at present, lowering the system operating cost, and simultaneously constructing landscape and beautifying environment in the process of pollutant treatment.

The invention discloses a preparation method of dephosphorisation absorptive material, comprising the following steps: washing manganese ore tailing with clean water, grinding to powder and meshing, adding acid fluid to the meshed manganese ore powder, filtering the solution, taking the solution and adding proper amount of alkali to neutralize till the pH is 6 to 8, adding oxidant solution to the filtrate while agitating, controlling the pH to be 6 to 8 during the reaction process, thoroughly shaking, ageing, neutralizing, washing, filtering and drying to obtain the product. The preparation of dephosphorisation absorptive material using natural manganese ore tailing as raw material has simple process and low cost, and has thye effect of changing wastes into valuables. The absorptive agent can remove the phosphorous well, and the saturated absorption quantity is 12.5mg / g. The absorptive agent has fast absorptive speed, large absorptive volume and good purification effect.

The invention relates to a china clay-baked container, in particular to a carbon ceramic container for containing water and a preparation method thereof. The carbon ceramic container comprises the following components in percentage by mass: 0.05 to 5 percent of high temperature-resistant inorganic antibacterial material, 5 to 55 percent of powdered carbon and 45 to 90 percent of clay. The carbon ceramic container for containing water has the advantages of no production of bacterial plaque when containing water and making tea for a long time or in a humid environment, excellent performance of purifying water quality, and black or dark grey whole body.

The invention relates to a conglomeration and flotation-sink treatment device for sewage produced in oil fields, which consists of a tank, a water inlet section A, a conglomeration and air-flotation section B, a drug mixed reaction section C and an air-flotation settling section D. The tank is designed into a rectangle shape, with top sealed; the water inlet section, the conglomeration and air-flotation section, the drug mixed reaction section and the air-flotation settling section are arranged in sequence from the left side to the right side of the tank; the water inlet section is communicated with the conglomeration and air-flotation section through a water distribution wall of the water inlet section; after the treatment by the conglomeration and air-flotation section, the sewage is communicated with a pipeline mixer of the drug mixed reaction section through a water pump, and then goes into a baffle reactor; after the treatment by the baffle reactor, the sewage is communicated with the air-flotation settling section via an inflow pipe of the air-flotation settling section; and the air-flotation settling section is divided into two chambers, namely, an air-flotation chamber and a sewage storage chamber treated in sequence by the conglomeration and air-flotation section, the drug mixed reaction section and the air-flotation settling section. After treated by the three sections, the sewage enters the sewage storage chamber through an overflow weir of the air-flotation settling section, and then goes to a sewage recycling system through a discharge valve. The conglomeration and flotation-sink treatment device for sewage produced in oil fields has the advantages of simple structure, convenient operation and high treatment efficiency.

The invention discloses a chitosan water-soluble combination agent and application of the chitosan water-soluble combination agent. The chitosan water-soluble combination agent comprises 10-80 parts by mass of chitosan and 20-90 parts by mass of amino acid composition and further comprises 0.01-5 parts by mass of essence. The essence comprises one or a combination of several of natural essence, equivalent natural essence and artificial synthetic essence. The deacetylation degree of the chitosan is larger than 50%, and the purity of the amino acid composition is larger than 90%. The deacetylation degree of the chitosan is preferably larger than 80%. Application of the chitosan water-soluble combination agent comprises the steps that the chitosan water-soluble combination agent is dispersed in water to form a chitosan combination agent water solution, and the chitosan combination agent water solution is applied to the fields of air purification, bacterium inhabitation, moisture preservation, dust prevention, freshness preservation, water quality purification, cosmetics, food and the like.