99results about How to "Has a purifying effect" patented technology

The invention relates to the field of household appliances, in particular to a washing machine provided with an ultra-fine bubble generating device. The washing machine comprises a case body and an outer tub installed in the case body, wherein an inner tub is rotatably arranged in the outer tub, at least one ultra-fine bubble generating device is arranged between the case body and the outer tub, a gas-liquid mixing outlet of each ultra-fine bubble generating device is communicated with the outer tub, ultra-fine bubbles produced by the ultra-fine bubble generating device enter washing body through the gas-liquid mixing outlet to make a washing agent fully dissolved. The washing ratio of clothes is improved, meanwhile pollutant discharge is reduced, and environmental pollution is reduced.

The invention relates to a source retention and purification system for a composite flat table top of a large and intermediate riverway, wherein, an interception cross trench the cross section of which is a trapezoid wide on the upper part and narrow on the lower part is arranged on a joint of a riverway slope and a composite platform; gravels with different grain diameters are filled into the composite platform layer by layer from far to near according to the distance with the middle of a river to respectively form a round gravel layer, a mediate gravel layer and a fragmental gravel layer; concrete bricks are laid on the top of the composite platform; one side of the composite platform on the waterfront is provided with a slope waterfront; nonfines concrete blocks are laid on the slope waterfront; and planting is performed on the slope waterfront in turn according to the depth and the height of the water to form a submerged plant community, a floating plant community and an emersed plant community. The source retention and purification system has the advantages that: rainfall runoff surface source pollutants can be retained and purified through the action of the interception cross trench, herbal plants, the gravel layers and aquatic plants on the waterfront of the composite platform, thereby a suitable living environment is created and the integration of the paddling amusement function, the flood carrying function, the surface source retention and purification function and the ecological function of a composite riverbed of the large and intermediate riverway is realized. Moreover, the source retention and purification system has the advantages of simple structure, convenient construction, stable function, low cost and convenient use.

The invention relates to a composite constructed wetland used for low pollution water purification treatment of farmlands and villages. The composite constructed wetland comprises a floating plant stabilization pond, a submerged plant oxidation pond and an emergent aquatic plant / hygrophyte ecology gravel bed which are orderly set along a water flow direction, wherein the floating plant stabilization pond is planted with floating plants, the submerged plant oxidation pond is planted submerged plants, and the emergent aquatic plant / hygrophyte ecology gravel bed is planted with emergent aquatic plants / hygrophytes. The composite constructed wetland adopts an ecological engineering processing method, and the operation cost of the composite constructed wetland is low; the total nitrogen removal rate and the total phosphorus removal rate of the low pollution water of farmlands and villages can reach more than 50% and more than 60%. In the composite constructed wetland, the floating plates, the submerged plants, and the emergent aquatic plants / hygrophytes planted in the floating plant stabilization pond, the submerged plant oxidation pond and the emergent aquatic plant / hygrophyte ecology gravel bed are aquatic economic plants which are capable of generating economic benefits and are easy to popularize in rural areas.

The invention discloses a heavy metal ions absorbent prepared by straw stalks. The heavy metal ions absorbent prepared by straw stalks is mainly prepared from, by weight, 50-100 parts of straw stalks, 15-30 parts of corncob, 20-30 parts of modified bentonite, 15-25 parts of modified diatomite, 5-10 parts of green alga, 1-2 parts of blue-green algae, 0.5-1 part of bacillus, 5-10 parts of fruit enzymes, 5-10 parts of soybean protein powder, 5-10 parts of tartaric acid, and so on. By taking the straw stalks as the main raw material of absorbent and performing cellulose and alkali water treatment, the prepared straw stalk powder is synergistic with modified bentonite and modified diatomite, thus the absorbent has significant absorption to heavy metal ions; the straw stalk powder is chelated with soybean protein powder, tartaric acid, oligosaccharide and chitosan to form macromolecule, and the macromolecule is tightly absorbed by silica gel and resin; thus the effect of effectively removing heavy metal ion is reached.

The invention discloses a wireless vehicle-mounted air purifier. The wireless vehicle-mounted air purifier comprises a purifier main body and one or a plurality of air quality sensors, wherein the purifier main body is connected with the air quality sensors in a wireless mode; the air quality sensors are used for sensing quality data of air and transmitting the sensed quality data to the purifier main body; the purifier main body treats air correspondingly according to the quality data of the air; the purifier main body comprises a first wireless communication module; each air quality sensor comprises a second wireless communication module; the vehicle-mounted air puffier is also connected with a vehicle-mounted terminal platform; the vehicle-mounted terminal platform comprises a third wireless communication module; and the purifier main body is respectively connected with the air quality sensors and the vehicle-mounted terminal platform through the first wireless communication module of the purifier main body. By the wireless vehicle-mounted air purifier, quality parameters of air at various positions in a vehicle can be acquired, and corresponding measures can be taken well according to the environment in the vehicle.

The invention discloses a non-self-consumption electric arc smelting preparing method of a tungsten alloy. The method comprises the steps of tungsten powder preliminary purifying, cold pressing molding, prefabricated block preparing, vacuum pumping, argon leading and electric arc smelting. Compared with the prior art, the method is simple in process, high in efficiency and low in cost, the purification effect is achieved, the tungsten alloy (the tungsten proportion content can reach 99.7% to 99.9%, and the proportion can reach up to 19.11) which is high in purity, free of obvious air holes, high in compactness (98.1% to 99.2%) and ultrahigh in proportion can be prepared, and the method can be applied to the fields of the electronic industry, the nuclear industry, aerospace and dynamic high-pressure physics and the like.

The invention discloses a melting device for plastic processing. The melting device comprises a melting tank, wherein one side of the top of the melting tank is fixedly connected with a charge hopper;the top of the charge hopper is equipped with a first sealing cover; a discharge hole is formed in the bottom of the melting tank; a second sealing cover is arranged inside the discharge hole; the bottom of the outer wall of one side of the melting tank is fixedly connected with an electromagnetic heater; a ring-shaped slot is formed in the bottom inside the melting tank; one side of the electromagnetic heater is fixedly connected with a heating tube which is spliced into the ring-shaped slot; one end of the heating tube is fixedly connected with a ring-shaped heating plate; and the top of one side of the melting tank is fixedly connected with a liquid storage box. The melting device can melt plastic at a high temperature, stirs plastic through a packing auger, increases melting speed, discharges poisonous gas into a medicament, purify the poisonous gas, utilizes an active carbon adsorption block to adsorb impurities and water vapor in gas, and has purifying effect.

The invention relates to a preparation method of a ceramic alloy composite wear-resistant material for a brake block. All ceramic fine powder, all silicon carbide fine powder, all titanium carbonitride fine powder, all chromite fine powder and half molybdenum tungsten rare earth alloy powder are evenly mixed, a binder is added to prepare slurry, and spraying mist drying and prilling are carried out; and a special die capable of conducting chamfering is used for hot press molding, a pressing material is obtained, half of remaining molybdenum tungsten rare earth alloy powder is used for spraying all surfaces of the pressing material, sintering is carried out after spraying, repeated spraying is carried out, sintering is carried out multiple times until a molybdenum tungsten rare earth alloy layer is formed on the surface, and the ceramic alloy composite wear-resistant material for the brake block is manufactured. According to the preparation method of the ceramic alloy composite wear-resistant material for the brake block, the brake block manufactured through the method has the beneficial effects of high temperature resistance, corrosion resistance, comfortable braking, environmental protection and noise reduction, and the problems of brake failures, large brake noise, serious abrasion and the like caused by brake block heat fading are solved.

The invention relates to a method for separating pigment molecules from hirudin fermentation broth and belongs to separation and purification of biological medicine. The method comprises steps as follows: a hydrophobic chromatographic packing material is added to the hirudin fermentation broth for adsorption, and after adsorbed precipitates are eluted, hirudin protein of separated pigment molecules is obtained. The whole adsorption and elution process is simple to operate, a certain purification effect is achieved while pigment is separated, and the recovery rate of the hirudin protein can reach 70%.

The invention discloses a health wine and its preparing method, using honey / honey spores, bee pollen / fallen fine bee pollen and haw as main raw material to ferment and make it, and its raw materials in weigh proportion: honey / honey spores 350-650 g, bee pollen / fallen fine bee pollen 175-325 g, refined honey 350-650 g, haw 175-325 g, red yeast 200-500 g, and water 7000-13000 g, and includes the process steps as preparing raw materials, mixing and fermenting, filtering fermentation liquor and making aged semi-finished product, checking the finished product, pouring and sealing. It maintains effective components of the raw materials, and has evident efficacies of nourishing spleen, promoting digestion, improving sleep, etc. If drunk for a long time, it is beneficial to human body.

The invention discloses a rotary sponge body synchronous sewage interception and cleaning operation method, which is characterized in that a rotary sponge body device is respectively installed on thetwo sides of a road or at the tail end of a community rainwater pipe network in series or parallel, and a water outlet of a baffle is connected with a municipal rainwater pipe network and nearby urbanwater or a recycling water pool; a water inlet of the baffle is connected with a nearby clean water source, a fire pool or a water supply pipe network through a water pump, and a driving mechanism isconnected with a programmable logic controller to achieve rainwater runoff synchronous sewage interception and cleaning. Compared with the prior art, the method has the advantages that the structureis simple, the use is convenient, filler blockage can be effectively prevented while efficient rainwater runoff pollutant interception is realized, a purification effect is achieved on rainwater runoff pollution, and the problem of black and odorous urban water caused by runoff pollution is effectively prevented.

The invention discloses a river sediment resource utilization method. River sediment is obtained and subjected to gravity sedimentation and concentration in a concentration pool; the concentrated sediment is conveyed to a hydrothermal closed reaction tank for a hydrothermal reaction; after the hydrothermal reaction is finished and the reaction mixed liquid is cooled, the reaction mixed liquid is discharged to a regulating tank, CaO is added, dehydration treatment is carried out, and a hydrothermal solution and a hydrothermal solid product are obtained through separation; a zero-valent iron Fenton reaction is carried out on the obtained hydrothermal solution, organic matter and heavy metals released in the hydrothermal liquid in the hydrothermal process are removed, and the treated water returns to a river channel water body; the obtained hydrothermal solid product is re-put into the river channel water body and is used for adsorbing nitrogen, phosphorus and the heavy metals in the water body, and the water-heat solid product can be enriched with microorganisms so as to further purify the water body. According to the method, the resource utilization of the sediment can be achieved while the river sediment is treated, little waste is generated, the operation is simple, and a feasible method is provided for the resource utilization of the river sediment.

The invention discloses a modular rotary sponge body device based on synchronous sewage interception and cleaning. The device is characterized by consisting of a sewage interception system and a tubular cleaning system which are arranged on a driving mechanism, wherein the tubular cleaning system is sleeved in the sewage interception system, the tubular cleaning system is turned over by 90 degreesevery time by a driving mechanism, to form a rotary sponge body for synchronous sewage interception and cleaning, and the sewage interception system is a long and thin sponge body with a square section formed by a modular baffle, a flow guide net cover, a mixed filler and water-permeable geotextile. Compared with the prior art, the device has the advantages of simple structure, convenience in use, capability of effectively preventing filler blockage while realizing efficient interception of rainwater runoff, high stability, simplicity and convenience in maintenance, long service life and thelike, has a purification effect on rainwater runoff pollution, and effectively prevents the urban water body black and odorous problem caused by runoff pollution.

The invention relates to a novel preparation process for a thermal barrier coating. The novel preparation process comprises the following steps: generating a metal bonding bottom layer on the surfaceof a matrix; generating an in-situ thermal growth oxide layer (TGO); and generating a ceramic heat-insulating surface layer, wherein the TGO layer is pre-grown before the matrix serves. The TGO layercomprises alpha-aluminum oxide. A compact and continuous TGO layer which takes alpha-aluminum oxide as the principal component is preset through large-particle dry ice jetting and purifying rougheningtreatment and pre-vacuum argon gas oxidizing treatment. An oxide film has very good high-temperature oxidization resistance, prevents quick oxidization, reduces a layer thickness increase rate of theTGO layer, and achieves the purpose of reducing thermal barrier coating peel-off probability.

The invention discloses a making method of a pumice material used for an artificial floating island and relates to pumice materials. The main making technology includes the steps that glass powder and sodium nitrate are mixed evenly, a mixed batch is prepared and then put into a mold to be spread flat, both the mixed batch and the mold are put into a muffle furnace, and then the environmentally-friendly pumice is prepared after constant-temperature preheating, temperature-rising heating, constant-temperature foaming and rapid cooling are carried out, and cooling annealing is carried out till room temperature is reached. Compared with the prior art, the pumice material made through the making method is free of toxin and harm, does not volatize and will not have a chemical reaction even if the pumice material is soaked in water for a long term, and is an environmentally-friendly material; meanwhile, the porosity is high, pores are moderate in size, and the pumice material is suitable for biofilm formation and proliferation of microorganisms and has a certain purification effect. A pumice body is firm, will not crack even under severe weather, and long in service life.

The invention discloses a method for carrying out water circulation air purification and plant water cultivation based on street lamp bodies, and belongs to the field of air purification. The air purification and plant water cultivation process of the method comprises the steps that an air exchange mechanism is firstly started, and outside air is introduced; a large water mist sprayer is utilizedfor spraying water mist, air is firstly subjected to spraying of the large water mist sprayer, and pollutants in the air are adsorbed by water drops and are discharged together along with converged water; the water mist is discharged through drainage openings in a bottom disc to enter inner cavities of flowerpot inner containers in electrostatic water cultivation mechanisms to be used as a nutrient solution for plant growing; the water finally flows into a water storage pond of a heat storage and supply mechanism; and water is supplied to the large water mist sprayer through a water inlet pipe, and cyclic utilization of purified water is achieved. According to the method, arranged water mist sprayers are used for spraying the water mist to purify the air, dirt water is fed to the electrostatic water cultivation mechanisms for plant growing, meanwhile, the dirt water is purified, and cyclic utilization can be achieved; and the aims of air purification and environment beautifying are achieved.

The invention provides a high-level rainwater flower bed for sponge city rainwater storage and purification. The high-level rainwater flower bed is arranged on one side of a building external wall and comprises a vegetation region, a flower bed base layer, a flower bed compacting soil layer and an overflow pipe. The flower bed base layer comprises a vegetation cultivation layer, a middle rubble layer and a water storage layer which are laid from top to bottom, the vegetation cultivation layer and the middle rubble layer are isolated by a permeable geotextile, and the overflow pipe penetrates the vegetation region and the flower bed base layer and is vertically communicated with an upper drainage pipeline and a bottom drainage pipeline, parallel to the outer wall of the flower bed and perpendicular to the ground. The rainwater flower bed is standard and practical, can effectively realize rainwater resource utilization and has the advantages of water-saving, energy-saving and land-saving properties and the like required by contemporary green buildings.

The invention discloses a vegetated ditch rainwater drainage pipe gallery system. The vegetated ditch rainwater drainage pipe gallery system comprises roadbed stones, a grading soil layer, geotechnical cloth, grading packing, rainwater perforated strainers, double-wall corrugated pipe inspection wells, arched regulation and storage equipment, an anti-seepage film and mud disposal equipment. The multiple roadbed stones are located at the upper ends of the left side and the right side of a vegetated ditch correspondingly. A foundation pit is longitudinally excavated in the lower end of the middle of the vegetated ditch. The arched regulation and storage equipment is longitudinally mounted in the foundation pit. One set of mud disposal equipment and one double-wall corrugated pipe inspectionwell are mounted at the lower end and the upper end of the arched regulation and storage equipment every multiple meters. Each rainwater perforated strainer is mounted at the upper end of the corresponding double-wall corrugated pipe inspection well. The anti-seepage film and the grading packing are sequentially laid at the upper end of tamped soil. The geotechnical cloth and the grading soil layer are sequentially laid at the upper end of the grading packing. Green plants are planted on the grading soil layer. A construction method of the vegetated ditch rainwater drainage pipe gallery systemcomprises the following steps of 1, excavation of the foundation pit; 2, construction of a geotechnical material; 3, mounting of the arched regulation and storage equipment, and laying of the gradingpacking; and 4, construction of a plantation layer. By means of the vegetated ditch rainwater drainage pipe gallery system and the construction method, rainwater can be effectively utilized.

The invention discloses a ceiling fan, and belongs to electric fans. An existing ceiling blade fan blade is prone to ash adhering, the coverage range is narrow, and airflow cannot circulate in the whole space. An annular slit facing the surrounding lower portion is arranged in a shell to serve as an air outlet, during work, 360-degree annular air outflow is formed, the airflow coverage range is wide, and air of the whole space can be promoted to circulate. Meanwhile, a wind wheel is located in the shell, a filter device shielding an air inlet is assembled at the air inlet position of the shell, wind wheel accumulated dust is reduced, meanwhile, blown air is clean, and the purification function is achieved for indoor air. Furthermore, an LED lamp can be arranged in a circular containing cavity of the shell, and the fan and the LED lamp are integrated. Meanwhile, the heat dissipation and lighting functions are achieved, the ceiling fan can serve as a heat dissipation substitute product when an air conditioner is not needed, the indoor air circulates, and the purposes of air purification and heat dissipation are achieved.

The invention discloses high-purity ultra-coarse particle ammonium paratungstate, and relates to the technical field of ammonium paratungstate, the total content of impurities is less than or equal to0.007%, the Fisher particle size is greater than 60 mu m, and the proportion of the Fisher particle size greater than 75 mu m in particle size distribution is greater than 70%; the invention also discloses a preparation method of the high-purity ultra-coarse particle ammonium paratungstate. The method comprises the following steps: by using the ammonium paratungstate solution produced by the extraction technique as the raw material, adding the ammonium paratungstate solution into continuous evaporative crystallization equipment, stirring at 1000-1400 r / min, and carrying out evaporative crystallization while controlling the crystallization temperature at 90-100 DEG C, vacuum degree at 0-10 KPa and steam pressure at 0.1-0.4 MPa. The method has the beneficial effects that a continuous evaporative crystallization method is adopted, the total content of 23 impurity elements required by the national standard of the prepared ammonium paratungstate is smaller than 0.007%, the Fsss particle size is larger than 60 microns, the proportion of the impurity elements larger than 75 microns in particle size distribution exceeds 70%, the apparent density is 2.4-2.6 g / cm < 3 >, and the fluidity issmaller than 35 s / 50 g.

The invention discloses a method for determining nitroimidazole drug residues in a blood sample. The method is characterized by comprising the following steps: (1) preparing a supermolecular solvent:n-octyl alcohol, tetrahydrofuran and water are adopted, stirred and centrifuged, and an upper organic phase is taken; (2) pretreating the sample: the blood sample is placed in the supermolecular solvent, vibrating extraction and centrifugation are performed, an upper liquid filtering membrane is taken, a filtrate is placed into a micro-sampling bottle, methanol is added, and a to-be-tested solution is obtained by uniform mixing; (3) determining the nitroimidazole drug residues in the to-be-tested solution with ultra-performance liquid chromatography-tandem mass spectrometry. The method is simple, fast, accurate and reliable and can be used for analyzing and detecting the nitroimidazole drug residues in the blood sample.

The invention relates to a diatomite forming composition with hygroscopic and deodorization functions and a preparation method thereof. The diatomite forming composition is prepared from the following components in percentage by weight: 5% to 40% of diatomite, 5% to 20% of tourmaline powder, 1% to 5% of inorganic cleaning agent, 0.1% to 1.0% of acrylic resin adhesive, and the balance of gypsum powder; the inorganic cleaning agent is composite powder prepared by attaching precious metal catalysts to layered inorganic functional materials. According to the diatomite forming composition with the hygroscopic and deodorizing functions and the preparation method thereof, the diatomite forming composition can effectively eliminate harmful gases when the concentration of harmful aldehydes, ammonia and benzene gases is relatively low, instant effectiveness is good, and the purpose of purification in a short time can be achieved; the diatomite forming composition has a relatively strong adsorption capacity of moisture and a strong hygroscopic effect; the diatomite forming composition has a simple production process and a strong purification effect, and is easy to industrial production.

The invention discloses a river bottom mud stabilizing and recycling method. The river bottom mud stabilizing and recycling method is characterized by comprising the following steps: settling and concentrating river bottom mud by virtue of gravity, performing hydrothermal reaction for a given time at a given temperature, cooling after the reaction is ended, and dehydrating, thus obtaining a hydrothermal solid product and a hydrothermal solution; re-feeding the hydrothermal solid product into a river to adsorb nitrogen, phosphorus and heavy metals in a water body and gradually load microorganisms, thereby further purifying the river water body; adding polymeric ferric aluminum chloride and NaOH into the obtained hydrothermal solution, performing the secondary hydrothermal reaction, removingorganic matters and heavy metals released in the hydrothermal solution in the hydrothermal process of the bottom mud, and returning treated supernatant to the river water body. By adopting the method, while the stabilization and harmless treatment of the river bottom mud are realized, the bottom mud can be recycled. The method has the advantages of simple operation, easy engineering, and capability of providing a feasible method for stabilizing and recycling the river bottom mud.

The invention relates to a method for concentrating hirudin in fermentation broth and belongs to the technical field of biological medicines. The method comprises the steps of adding reversed-phase chromatography filler in hirudin fermentation broth for adsorption, performing eluting adsorption precipitation, and collecting effluent, namely hirudin concentrated solution, wherein the reversed-phase chromatography filler is formed by bonding hydrophobic groups to the surface of silica gel substrate. The whole process of adsorption and elution is simple to operate, a purification effect is also achieved while concentration is performed, and the hirudin egg white recovery rate is 70% or above.

The invention discloses a tail gas heat exchanger of a diesel engine. The tail gas heat exchanger comprises water collection chambers, expansion joints, a thermal insulation shell, heat exchange tube components, elbows and a support. The left end faces of the heat exchange tube components are in sealed connection with the water collection chambers through the expansion joints, and the right end faces of the heat exchange tube components are in sealed connection with the water collection chambers directly so as to form heat exchanger units. The thermal insulation shell is arranged on the support, and the thermal insulation shell of a three-way structure is transversely provided with two heat exchanger units with the same specification in an inner chamber between a tail gas inlet and a tail gas outlet in parallel. The water collection chambers connected to both ends of the heat exchanger units are exposed out of the thermal insulation shell, connecting pipes of the two adjacent water collection chambers at the left end are respectively taken as introduction or drainage water flow passages, and connecting pipes of two adjacent water collection chambers at the right end are connected to form an integrated structure through an elbow string. According to the invention, through heat exchange of circulating cooling water and waste gas, the waste heat is utilized, and the national energy conservation and emission reduction policy is realized. The invention is particularly matched with a high-power diesel engine fixed by a working position.

The invention provides a method for preparing a plasma-oriented tungsten coating used in a fusion reactor by using tungsten carbonyl as precursor and using a plasma-enhanced metal organic chemical vapor deposition method. During a deposition reaction, the interlayer of a reactor is cooled through always introducing cooling water to the interlayer, the pressure is constant to be 150-250Pa, and thetemperature of a base is controlled to be 200-600 DEG C; saturated tungsten carbonyl vapor of which the purity is 99.9% is introduced, wherein the air flow is controlled to be 1.0-3.0ml / s, and the temperature ranges from 70 to 140 DEG C; and the deposition is carried out for 5-12 hours, and thermal diffusion annealing is carried out 3-6 hours after constant heat insulation. The method disclosed by the invention can be used for preparing tungsten coatings having high bonding strength with a base, and the coatings are less than 5mm in thickness and have the characteristics of low porosity, highpurity, smooth surface and the like. The method is relatively simple in process, has high reliability and can prepare large-area tungsten coatings, thereby being widely applied to a fusion reactor experimental facility and the first wall of a future fusion reactor.

The invention relates to an ecological floating bed device which comprises a wave dissipating device and at least one ecological floating bed. Each ecological floating bed comprises a floating body, apacking layer, aquatic plants and a fixing device, wherein the ecological floating beds are arranged close to the bank side, and the ecological floating bed single bodies are connected through ropes.The floating body comprises a frame structure and a floating ball arranged on the frame structure; the fixing device is a fixing pile; the packing layer comprises an iron wire net, a three-dimensional plant net and packing; the aquatic plants are planted above the filler. The wave dissipating device comprises a steel pipe, an enclosing net and a connecting ring and is designed to be arc-shaped, wherein the enclosing net is connected with the steel pipe. The problem of application of a conventional ecological floating bed in a deep water area is solved, the purpose that floating bed plant seedpropagules can naturally overwinter is achieved, and meanwhile the problem of nutrition limitation of ecological floating bed plant growth is solved.

The invention discloses a pineapple straw wastewater treatment method, and relates to the technical field of ecological environmental protection. According to the present invention, fresh pineapple leaves are subjected to crushing, juicing, fiber rinsing and pressing to obtain a liquid part, the useful biochemical components in the liquid part are adsorbed by a chromatographic column so as to provide purification effect, the water purified by the chromatographic column can be drunk or can be used for washing pineapple leaves or watering, the useful biochemical components adsorbed by the chromatographic column are subjected to desorption purification to obtain a useful biochemical raw material, the adsorbent can be reused after being activated, and the fiber part is used for other purposes,wherein the whole cycle does not discharge waste, the waste is turned into treasure, the pineapple straw resources are completely utilized, and obvious good social, economic and ecological benefits are achieved.

The invention discloses a high-efficiency air purification material and a preparation method thereof. The purification material is prepared from the following raw materials: ferrous titanate, gallium-doped indium zinc oxide, strontium titanate, titanium carbonitride, cerium molybdate, ethylene glycol dimethacrylate, 5-butyl hydantoic acid, pollen pini polysaccharide, polyvinyl alcohol, pseudo-boehmite, tourmaline powder, lanthanum phosphate nanowires, lithium metaaluminate, hafnium hydroxide, konjak mannan, sodium polytungstate, selenium substituted amino acids and polyaluminium ferric sulfate. The air purification material prepared by the invention can achieve an effect of purifying multiple pollutants, has a formaldehyde purification rate of 95% or higher, a benzene purification rate of 90% or higher and an NO purification rate of 85% or higher, has an excellent purification effect, does not cause secondary pollution, and is wide in application range, flexible and convenient to use and wide in market prospects.

The invention discloses a nitrogen-doped porous carbon material adsorbent for treating dye wastewater as well as a preparation method and application thereof. The preparation method comprises the following steps: uniformly mixing walnut shells and a nitrogen source, and grinding to obtain a first mixture; carrying out carbonization treatment on the first mixture in a protective atmosphere, and uniformly mixing and grinding an obtained carbonized product and a potassium salt to prepare a second mixture; and activating the second mixture in a protective atmosphere to obtain the nitrogen-doped porous carbon material adsorbent for treating dye wastewater. The nitrogen-doped porous carbon material adsorbent provided by the invention has a relatively good adsorption effect on malachite green dye, the adsorption efficiency is high, the adsorption capacity within 5min reaches 4001 mg / g, the adsorption capacity is large, the dye removal rate is high, the maximum adsorption capacity is 4500mg / g. The preparation process is simple, the cost is low, and the adsorbent is green and efficient, and has a purification effect on various types of dye, and has potential application value in the aspect of dye wastewater treatment.