237 results about "Clinoptilolite" patented technology

Efficient removal of mercury from the exhaust gases of an industrial process or combustion process can be achieved using an adsorbent that can be regenerated by a simple and efficient method. The mercury is contacted with a sorbent material, the sorbent material being hydrogen mordenite or hydrogen clinoptilolite, for adsorbing mercury and causing the mercury to react with the sorbent material to produce mercury-laden sorbent material. The mercury-laden sorbent material can be heated to a temperature of at least about 400° C. so as to remove mercury from the mercury-laden sorbent material and to regenerate the sorbent material to allow reusing of the sorbent material for mercury removal.

The invention extends the connotation range required to be protected on the basis of a previously issued patent ZL200710025045.4, i.e., a nanometer microcrystalline composite filter material and a preparation method thereof, belonging to the field of a water disposal technique material. According to weight percentage, the nanometer microcrystalline composite filter material comprises 3-95 percent of attapulgite clay, 5-80 percent of sepiolite clay, 2-25 percent of kaolinite clay, 2-97 percent of tubular halloysite, 5-75 percent of diatomite, 5-75 percent of natural zeolite (clinoptilolite, mordenite and the like), 0-25 percent of pillared montmorillonite, 0-50 percent of expanded vermiculite, 0-5 percent of expanded perlite and 0-50 percent of active carbon or bamboo carbon powders. All raw materials which are powder shapes are mixed according to proportion and stirred to granulate by adding an inorganic adhesive, then sintered and activated at the temperature of 900-500 DEG C (inert gas is required for sintering and activating the filter material added with active carbon). The nanometer microcrystalline composite filter material has smooth shape, rough surface and uniform particle size, with the diameter of 1-10mm, and is used for biological filter tanks and high-class adsorption filter materials in deep purification systems of drinking water and reclaimed water sewage disposal systems.

The invention provides a magnetic zeolite, and a preparation method and an application thereof and particularly relates to a use method in sewage treatment and polluted-soil remediation. The magnetic zeolite consists of natural clinoptilolite, wherein the surface of the natural clinoptilolite is covered with magnetic iron powder. The magnetic zeolite has high adsorbing affinity and adsorbing capacity for heavy metals, not only can be used for remediating a water body polluted by the heavy metals, but also can be used for remediating the soil polluted by the heavy metals. The preparation method is simple in step and easy in operation, and can be used for large-scale industrial production; simultaneously, the magnetic zeolite is simple in use, high in efficiency and low in cost; and after remediation, secondary pollution can not be caused, and the safe and reliable effects are achieved.

The invention belongs to the technical field of waste water processing. An inorganic-organic compound-type adsorbent is prepared by compositing three natural materials of natural clinoptilolite, humic acid and chitosan. The method comprises the following specific steps of: performing pre-activation modification on the natural clinoptilolite, performing insolubility processing on humic acid, sufficiently mixing the processed clinoptilolite, insoluble humic acid and acidic chitosan solution according to a certain proportion, heating and drying through microwave, grinding and screening to prepare the inorganic-organic compound-type adsorbent with a loose porous structure, high surface activity and high ion exchanging performance. The prepared adsorbent is used for processing the industrial waste water with the concentration of Cr(VI) lower than 100mg / L, wherein the concentration of effluent Cr(VI) is lower than 0.5mg / L, which meets the requirement of the maximum permissible discharge concentration of the first type of pollutant in the national waste water comprehensive discharge standard. The method has easily obtained materials, simple processing technique and high processing efficiency, and is suitable for large-scale production.

The invention relates to a ceramic ball for purifying the water quality and a preparation method thereof. The ceramic ball for purifying the water quality is formed by sintering 30 percent of tourmaline, 15 percent of Brazilian tourmaline, 15 percent of clinoptilolite, 15 percent of medical stone, 5 percent of selenolite, 10 percent of diatomite and 10 percent of caking agent together, wherein the tourmaline, the Brazilian tourmaline, the clinoptilolite, the medical stone and the selenolite are all crushed into over 6,000 meshes; and the diatomite and the caking agent are crushed into over 2000 meshes. The ceramic ball for purifying the water quality has good activation, high degree of mineralization and long service life; and in addition, the activated water can reach the standard of high quality drinking water, is easier to absorb by the human body and is beneficial to the health of the human body.

The invention relates to a treatment method of recirculation aquaculture system, relating to the aquaculture treatment, which solves the problem about high density aquaculture water treatment device integration. The invention adopts filling type bio-flocculation sedimentation, biological film filtering and water quality stabilizing adjusting, the invention is characterized in that: the 2 / 3 of the upper part of the filling type bio-flocculation sedimentation is filled with polyolefin and polyamide composite filling layer for removing the organic substances, suspended substances, nitrogen, and phosphor, the 1 / 3 of the lower part of the filling type bio-flocculation sedimentation is the sludge collection area; the 2 / 3 of the upper part of the biological film is filled with a filtering filling layer made of poly(4-vinylpyridine)-halide for realizing deep purification of aquaculture, the 1 / 3 of the lower part of the biological film is the micro-oxygen aeration / sludge collection area, the sludge enters the sludge collection area of the filling type bio-flocculation sedimentation from the bottom of the biological film filtering unit; the water quality stabilizing adjusting unit filled with a filling layer mixed by clinoptilolite, vermiculite, shale and limestone for realizing caustic balance and ion compensation of aquaculture water quality. The invention is used for aquaculture integrated biological treatment.

The invention relates to a preparation method of an ion exchanger. A preparation method of a modified clinoptilolite ion exchanger is characterized by comprising the following steps: 1), putting 10-80-mesh natural clinoptilolite into a microwave oven, and performing microwave radiation for 5-8min at 800W; 2), dissolving sodium chloride into ammonia-free water to prepare a solution with the concentration of 0.5-1.5mol / L; 3) uniformly mixing the clinoptilolite and the solution, and modifying to obtain a mixture, wherein the mass ratio of the clinoptilolite to the solution is 1: 6-1: 12; and 4), filtering the mixture, collecting solid substances in the mixture, rinsing the solid substances with ammonia-free water cleanly, and drying the solid substances to prepare the modified clinoptilolite ion exchanger. The prepared modified clinoptilolite ion exchanger can remove ammonia and nitrogen in secondary effluent of a municipal sewage treatment plant and low-concentration ammonia nitrogen wastewater, with the removing rate of 88.66-99.24 percent. The preparation method of the modified clinoptilolite ion exchanger is simple, easy to operate, economical, feasible, and low in sewage treatment cost and the investment.

Efficient removal of mercury from the exhaust gases of an industrial process or combustion process can be achieved using an adsorbent that can be regenerated by a simple and efficient method. The mercury is contacted with a sorbent material, the sorbent material being hydrogen mordenite or hydrogen clinoptilolite, for adsorbing mercury and causing the mercury to react with the sorbent material to produce mercury-laden sorbent material. The mercury-laden sorbent material can be heated to a temperature of at least about 400° C. so as to remove mercury from the mercury-laden sorbent material and to regenerate the sorbent material to allow reusing of the sorbent material for mercury removal.

The invention relates to a series of nano-particle water purification materials, which take quartz sand or zeolite particle as a substrate, nano-meter aluminum (iron) oxide or nano-meter aluminum (iron) oxidized hydrogen oxide as a modified filtration coating, and can effectively and completely remove a plurality of heavy metals from wastewater. The invention also relates to a preparation method of the nano-particle water purification materials. In the preparation method, acidic solution with 16 to 80 meshes of quartz sand or 20 to100 meshes of clinoptilolite is poured into secondary deionized water, uniformly mixed and heated, nano-aluminum powder, aluminum nitride powder or iron powder is poured into the acidic solution and ultrasonically mixed and ethanol solution of ester is then poured into the mixed acidic solution, ultrasonically mixed again, filtrated and dried so as to gain nano-fibriform AlO(OH) or FeOOH which is the particle water purification materials of filtration coating which are further roasted so as to gain Gamma-Al2O3 or Fe2O3 which is the particle water purification materials of filtration coating. The nano-particle water purification materials of the invention have the advantages of strong removal ability, high cleanliness, great saturated adsorption capacity, etc.

The invention provides a method for processing vanadium ammonia nitrogen contained waste water by a natural clinoptilolite. The method comprises the steps: the waste water of which the pH value is between 4 and 7, the temperature is between 20 and 25 DEG C and the ammonia nitrogen concentration is between 20mg / L and 600 mg / L passes through an ion exchange column filled with the natural clinoptilolite at a flow rate of between 10 and 80ml / min; after the ammonia nitrogen concentration in yielding water is reduced to 8mg / L below, NaCl and NaOH are prepared into mixed solution the concentration of which is 5g / L according to the mass ratio of between 2 and 5 to between 5 and 9, then the mixed solution passes through a clinoptilolite adsorption column which adsorbs the ammonia nitrogen and reaches the breakthrough point at a flow rate of between 8 and 20ml / min, and the regeneration is performed for 2 to 5 hours for 2 to 4 times to obtain filtrate of ammonium chloride and the clinoptilolite which is eluted and adsorbs the ammonia nitrogen. The regenerated clinoptilolite is dried at a temperature of 105 DEG C for recycling, and the filtrate of the ammonium chloride is concentrated for recycling. The method has the advantages of low cost of waste water treatment, less investment and large waste water processing quantity; besides, the operation is simple, the ammonium chloride can be recycled, thus the method is an economical and feasible approach for processing the vanadium ammonia nitrogen contained waste water.

The invention relates to a method for preparing potassium chloride from seawater. The method mainly comprises a potassium ion adsorbing and eluting process, an evaporating and concentrating process, a heat preserving and settling process, a cooling and crystallizing process and the like. The method comprises the following specific steps of: introducing the seawater serving as a raw material into an ion exchange column which is filled with sodium clinoptilolite at room temperature for adsorbing until potassium ions fully undergoes an exchange reaction with sodium ions on the clinoptilolite, namely, adsorption of the potassium ions reaches a saturated state; washing off the seawater in the ion exchange column with water; introducing an eluent which contains ammonium chloride and sodium chloride into the ion exchange column, wherein the ammonium chloride accounts for 15 to 25 mass percent of the eluent and the sodium chloride accounts for 10 mass percent of the eluent; eluting the potassium ions on the clinoptilolite to obtain potassium-rich fluid; evaporating and concentrating the potassium-rich fluid to obtain supernate; cooling the supernate and introducing ammonia into the cooled supernate; and separating ammonia out and crystallizing the supernate to obtain the potassium chloride. The method has the advantages of simple technical process, no discharge of waste liquid in the technical process and capability of further lowering the cost by recycling the clinoptilolite, ammonia water and saline water, enhancing economic benefit and breaking a new path for national supply of agricultural potassium fertilizers.

The invention relates to a conditioner used for restoring polluted soil, in particular to an efficient conditioner used for restoring cadmium-arsenic composite polluted soil and an application method of the efficient conditioner. The efficient conditioner is composed of, by weight, 30-50 parts of hydroxyapatite, 10-30 parts of zeolite and 25-55 parts of modified carbonization straw. According to the hydroxyapatite, the whiteness is larger than or equal to 90, the particle size is larger than or equal to 300 meshes, the calcium content is 22-27%, and the phosphorous content is 9-12%; the zeolite is clinoptilolite, and contains 62-70% of SiO2, 13-17% of Ai2O3, 1-2% of Fe2O3, 3.5-6% of CaO and 1-3% of Na2O, and the particle size of the zeolite is larger than or equal to 100 meshes; and the rice straw is the straw of early rice or late rice. According to the different pollution extents of cadmium and arsenic in the soil, the soil efficient conditioner is reasonably used, and the content of the cadmium and arsenic in the coarse rise can reach the national food pollutant limit standard.

The invention discloses a method for treating water of a polluted water source by using a double-stage aeration bio-filter, which relates to a method for treating the water of the polluted water source. The method solves the problems of easy blockage, easy production of secondary pollution and poor removal effect in the conventional method for treating the water of the polluted water source by using an aeration bio-filter process. The method comprises the following steps: allowing the water of the polluted water source to be treated to enter the double-stage aeration bio-filter, making the water flow upwards and aerating at the same time, controlling the hydraulic retention time so as to realize the treatment for the water of the polluted water source. When the water of the polluted water source is treated and the lightweight carrier of the lower stage is in a fluidized state, organic substances and intercepted suspensions can be efficiently removed, so the problem that the filler of the upper stage is easy to block due to small grain diameter is solved; meanwhile, because the natural clinoptilolite at the upper stage has large specific surface area, the removal rate of ammonia nitrogen is high, and the purpose of efficiently removing the ammonia nitrogen and the organic substances at the same time can be achieved; and moreover, the back flushing period is long and the secondary pollution cannot be caused.

The invention discloses preparation method of nanomaterial-modified zeolite. The preparation method of nanomaterial-modified zeolite comprises the following steps: 1) performing acid pickling, drying and sieving on natural clinoptilolite to be used as a carrier; 2) adding the carrier into 0.12-0.36 M FeC13.6H2O aqueous solution, adjusting the pH of the obtained suspension system to 3-5, performing ultrasonic treatment for 20-40 minutes, and then adding a surfactant solution for continuing to stir; 3) adding 0.9-1.02M NaBH4 aqueous solution o the mixed solution, and stirring for 22-26 hours at atmospheric pressure; and 4) filtering the suspension to obtain black solid, washing the black solid sequentially with 0.05-0.15M HCl, oxygen-free distilled water and anhydrous ethanol, and separating to obtain nanomaterial-modified zeolite. The nanomaterial-modified zeolite can be used for environment restoration, and has better adsorption effect on arsenic, cadmium and lead.

The invention relates to a biofertilizer used for aquiculture pond and a preparation method thereof. The biofertilizer comprises the following components in parts by weigh: 100-200 parts of sodium humate, 100-200 parts of urea, 100-200 parts of calcium superphosphate, 100-200 parts of Bacillus subtilis and 200-600 parts of clinoptilolite powder; and the biofertilizer is prepared by mixing the above components. The biofertilizer can quickly act, adjust the water quality, and improve the substrate by reasonable formula; in addition to direct utilization by the aquatic organisms, the biofertilizer can combine with the hazardous materials in the water body substrate to detoxicate, and improve the metabolism of the algae at the same time, and increase the dissolved oxygen of the water body; and the preparation method is simple and is suitable for the requirement of large-scale industrial production.

The invention provides a composition for removing moss and a preparation method of the composition. The composition is constituted by a biological algae inhibiting element, plant ash and clinoptilolite powder in parts by weight: 0.2-1 part of biological algae inhibiting element, 100-500 parts of plant ash and 500-900 parts of clinoptilolite powder; the above components are mixed uniformly to form the composition; through reasonable formulation, the composition for removing the moss can be used as a substituent of prometryn to kill filamentous algae such as spirogyra, hydrodictyon, chaetophora and bottleneck algae, and has preventing efficiency on filamentous algae diseases produced in sea cucumber cultivation to a certain extent. The algae killing effect of the composition provided by the invention is far superior to that of compounds such as copper sulfate, potassium permanganate, potassium ferrate and sodium ferrate, the pesticide effect is high and the dosage is extremely small, the environment is not damaged, the residual problem of existing chemicals is resolved, the use is safe, and the composition is an environment-friendly product; and the preparation method is simple and is suitable for the need of large-scale industrial production.

The invention relates to a disinfectant for a pond water body, comprising the following components in parts by weight: 10-100 parts of potassium ferrate, 100-300 parts of polymeric aluminium, 200-500 parts of polymeric ferric sulphate and 100-700 parts of clinoptilolite. Ferrate used in the invention is taken as a non-chlorine water treatment agent, bacteria, viruses and algaes in water can be rapidly killed, organic matters, inorganic matters and heavy metal ions in the water also can be removed, and the effects of disinfection, decolourization, deodorization and coagulation assistant can be realized. The disinfectant for the pond water body disclosed by the invention has reasonable components and low cost, is simple to prepare and is convenient to use, development and application curative effects are assured, toxic and side effects are small, and application range is wide.

The invention provides a zeolite-calamus constructed wetland sewage disposal system as well as a method utilizing the constructed wetland system to treat domestic sewage. The zeolite-calamus constructed wetland sewage disposal system mainly comprises a tank body, a filler filled in the tank body, aquatic plants planted on the surface of the tank body as well as a water distribution pipe and a water collecting pipe distributed in the tank, the filler is mainly clinoptilolite, Nitrobacter opacus Sack and Nitrosomonas monocella Nelson are put into the filler, and the aquatic plants planted on the surface of the tank body are calami. The system and method adopt clinoptilolite which has good ammonia nitrogen removal effects to serve as the filler of the constructed wetland, in order to improve the treatment efficiency of zeolite, special nitrifying bacteria under artificial culture are screened to regenerate the zeolite, and the constructed wetland system has advantages of high ammonia nitrogen removal capacity, low investment and running costs and simple operation.

The present invention relates to amino functionalized hydrophobic zeolite synthesis, particularly to an amino functionalized hydrophobic zeolite, a preparation method and applications thereof. The method comprises: adding natural clinoptilolite to an aminosilane coupling agent solution, carrying out a complete reaction, carrying out suction filtration, rinsing, and drying to obtain the amino functionalized hydrophobic zeolite. According to the present invention, the cheap natural clinoptilolite is subjected to surface modification with the aminosilane coupling agent, such that the zeolite surface simultaneously contains the amino functional group and the hydrophobic hydrocarbon chain; and the amino functionalized hydrophobic zeolite prepared through the method can effectively adsorb heavy metal anions and hydrophobic contaminants.

The invention provides an ammonia nitrogen treatment method of tanning waste water. The method comprises the following step that: a biological filter 1 is filled with clinoptilolite and then autotrophic nitrobacteria are fed in the filter 1 to carry out cultivation and biofilm formation (need to be carried out under the conditions of oscillation or ventilation because the nitrobacteria are aerobes); a biological filter 2 is filled with clinoptilolite and then heterotrophic denitrifying bacteria are fed in the filter 2 to carry out the cultivation and the biofilm formation (can be carried out just under a static condition because the denitrifying bacteria are anaerobes); the tanning waste water is fed in the biological filter 1 first so as to carry out oxygen supply treatment for 40 to 60 minutes; and then, waste water discharged from the biological filter 1 is fed into the biological filter 2 to carry out anaerobic treatment for 40 to 60 minutes. The ammonia nitrogen treatment method has the following main advantages that: COD in the secondary effluent of the tanning waste water can be reduced from 100 to 200mg / L to 40 to 80mg / L, while ammonia nitrogen content is reduced from 40 to 200mg / L to 10 to 35mg / L and total nitrogen is reduced by approximately 60 percent; therefore, the secondary effluent meets the requirements of treatment before the secondary effluent is fed into an urban sewage disposal plant; moreover, the ammonia nitrogen treatment method has large biofilm formation quantity, high ammonia nitrogen removing efficiency and lower cost of equipment and operation.

The invention relates to a nanocomposite for synchronously removing carbon, nitrogen and phosphorus and a preparation method of the nanocomposite. The method specifically comprises the following steps: flushing natural clinoptilolite with deionized water, and drying the natural clinoptilolite; performing constant-temperature turnover impregnation on the dried natural clinoptilolite by use of a soluble calcium salt solution, so as to obtain the pretreated natural clinoptilolite; adding the pretreated natural clinoptilolite into a mixed solution containing soluble calcium salt, alkali and polyethylene glycol, and stirring the mixed solution till uniform dispersion; slowly and dropwise adding an H2O2 solution into the mixed solution, and performing centrifugation and drying to obtain the nanocomposite. Compared with the prior art, the nanocomposite provided by the invention has fairly strong adsorption capacity and oxidation capacity on pollutants, and efficient and synchronous removal of carbon, nitrogen and phosphorus in different types of actually polluted water can be realized; the removal rate of nitrogen and phosphorus can exceed 80% or more, and the removal rate of carbon is 50% or more; and the nanocomposite has the advantages that the synchronous removal effect of carbon, nitrogen and phosphorus is good, the preparation technology is simple, and the like.

The invention discloses a mineral culture material which can prevent champignon from absorbing heavy metal and consists of clinoptilolite power with the weight percentage of 50 to 89 percent, limestone powder or gypsum powder with the weight percentage of 9 to 42 percent and magnesium sulfate with the weight percentage of 2 to 8 percent. The invention reduces the content of heavy metal in the cultivated champignon to 10 to 50 percent, which is beneficial for improving the quality and safety of champignon and greatly reducing the heavy metal overweighting rate in champignon. The invention avoids adding sugar, increases the fixation property, ventilation property, water retention property and the function of adjusting the pH value, reduces the occasions of mushroom-stick rotten and damage by disease and insect at high-temperature over-summer period, prolongs the fruiting period, raising the conversion rate of culture material, raises the champignon-stick yield by 3 to 5 percent and increases the yield quantity of champignon by 5 to 8 percent. The invention can provide calcium, magnesium and a plurality of mineral trace elements necessary for champignon growth, has the function of evenly providing nitrogen and regulating nutrient delivery speed, reduces the occurring of deformed champignon and head-damped champignons and raises the high-quality champignon proportion by 8 to 15 percent.

The invention provides a cultivation medium, which comprises the following components in percentage by volume: 38 to 42 percent of Mako Hyuga stone, 16 to 21 percent of clinoptilolite, 5 to 7 percent of infusorial earth, 11 to 16 percent of red jade earth, 6 to 9 percent of allophone, 5 to 10 percent of Kiryu sand. In the invention, the Mako Hyuga stone, after high-temperature treatment, has the basic excellent properties of media, such as permeability, water discharge, insusceptibility to decomposition and breakage and high stability; and due to a chemical inertness, the Mako Hyuga stone can prevent the increase of surface adsorbates of the clinoptilolite exposed in the air for an overlong time and can prolong the service life of the clinoptilolite by 3 to 5 years effectively.

The present invention belongs to the water treatment technical field and particularly relates to the preparation and use of a nitrogen and phosphorus removal carrier. The carrier of the present invention can provide the water environmental protection by the nitrogen and phosphorus removal treatment towards industrial wastewater and living sewage, which contain ammoniacal nitrogen and inorganic phosphorus, and towards pollution source or water in non-point source pollution. The nitrogen and phosphorus removal carrier of the present invention is characterized in that when a dry basis of the finished product is 200kg, and calculating according to weights, the components are as followings: 100kg to 120kg clinoptilolite powder, 90 percent of the exchange capacity over 100 meshes of which is more than 100cmol (plus) / kg; 50kg to 70kg land plaster, 90 percent of which is more than 100 meshes; 10kg industrial salt, the granular size of which is 2cm to 3 cm; 20kg common portland cement (labels of which is from 325 to 525); 2kg sawdust of pine tree; 100kg to 200kg complementary water. The present invention also discloses the preparation method and the application of the carrier.

The invention relates to a water quality activation foil special for a health preserving cup and a preparation method thereof. The water quality activation foil special for a health preserving cup is The invention relates to a water quality activation foil special for a health preserving cup and a preparation method thereof. The water quality activation foil special for a health preserving cup ismade by sintering 30 percent of verdelite, 20 percent of tourmaline, 10 percent of opal, 10 percent of clinoptilolite, 10 percent of Muyu-stone, 10 percent of Feiling clay and 10 percent of kaolin clamade by sintering 30 percent of verdelite, 20 percent of tourmaline, 10 percent of opal, 10 percent of clinoptilolite, 10 percent of Muyu-stone, 10 percent of Feiling clay and 10 percent of kaolin clay together, wherein the verdelite and the tourmaline are nanon powder; and the opal, the clinoptilolite, the Muyu-stone, the Feiling clay and the kaolin clay are superfine nanon powder. The water qualy together, wherein the verdelite and the tourmaline are nanon powder; and the opal, the clinoptilolite, the Muyu-stone, the Feiling clay and the kaolin clay are superfine nanon powder. The water quality activation foil special for a health preserving cup has good activation and high degrees of mineralization and purification; and the water activated by the water quality activation foil can reachity activation foil special for a health preserving cup has good activation and high degrees of mineralization and purification; and the water activated by the water quality activation foil can reachthe standard of high quality drinking water, is easier to absorb by the human body and beneficial to the health of the human body.the standard of high quality drinking water, is easier to absorb by the human body and beneficial to the health of the human body.

The invention relates to a series of nano-particle water purification materials, which take quartz sand or zeolite particle as a substrate, nanometer aluminum (iron) oxide or nanometer aluminum (iron) oxidized hydrogen oxide as a modified filtration coating, and can effectively and completely remove bacilli and virus from wastewater and sewage. The invention also relates to a preparation method of the nano-particle water purification materials. In the preparation method, acidic solution with 40 to100 meshes of quartz sand or 60 to120 meshes of clinoptilolite is poured into secondary deionized water, uniformly mixed and heated, nano-aluminum powder, aluminum nitride powder or iron powder is poured into the acidic solution and ultrasonically mixed and ethanol solution of ester is then poured into the mixed acidic solution, ultrasonically mixed again, filtrated and dried so as to gain nano-fibriform AlO(OH) or FeOOH which is the particle water purification materials of filtration coating which are further roasted so as to gain Gamma-Al2O3 or Fe2O3 which is the particle water purification materials of filtration coating. The nano-particle water purification materials of the invention have the advantages of strong removal ability, high cleanliness, great saturated adsorption capacity, etc.

The invention provides a solidification / stabilization method for mercury-containing hazardous waste. (3-Mercaptopropyl)trimethoxysilane is adopted to assemble by self on the surface of natural clinoptilolite to obtain thiol functional zeolite with high adsorption capacity on the mercury. The solidification / stabilization method for the mercury-containing hazardous waste is characterized in that chemical bond phosphate ceramic serves as curing agent, and the thiol functional zeolite serves as stabilizing agent. Under the condition that pH is 4-6, more than 99% of mercury in the mercury-containing hazardous waste is solidified / stabilized at the room temperature, and the mercury leaching concentration is lowered to be below the 0.1mg.L-1 standard value of the leaching mercury concentration in the Chinese national standard GB5085.3-2007. The method disclosed by the invention is simple, is low in cost and has high solidification / stabilization efficiency for the mercury-containing hazardous waste. The solidification / stabilization method for the mercury-containing hazardous waste is suitable for disposing the mercury-containing hazardous wastes, such as soil, deposit sediments and slag and also can be used for processing the mercury-containing hazardous waste, such as other industrial sources, chlorine-alkali production, electric wire equipment and switch manufacture, zinc-copper smelting and gold mine mining.

The invention provides a preparation method of a nano layered clinoptilolite molecular sieve. The method comprises the following steps that firstly, sodium hydroxide or a mixture of sodium hydroxide and potassium hydroxide is mixed with a silicone source, an aluminium source and water, stirring and crystallization are conducted for a certain time period, and then filtering is conducted to obtain asolution II; or the prepared nano layered clinoptilolite molecular sieve is completely dissolved in sodium hydroxide or a mixed solution of sodium hydroxide and potassium hydroxide to obtain a solution III; then, the solution II or the solution III is used as a structure accelerant and added to a synthesis system formed by different silicone sources, sodium hydroxide or the mixture of sodium hydroxide and potassium hydroxide, the aluminium source and the water, crystallization is conducted for 10-96 hours at 80-200 DEG C, cooling is conducted to the room temperature, and through solid-liquidseparation, washing and drying, the nano layered clinoptilolite molecular sieve is obtained. According to the preparation method, the structure accelerant is added, which helps to shorten the crystallization time and lower the crystallization temperature; the obtained nano layered clinoptilolite molecular sieve has the advantages of being high in relative crystallinity, small in grain size and thelike.

The invention relates to modified clinoptilolite, a preparation method thereof and application of the modified clinoptilolite in removal of Pb ions in wastewater, and belongs to the technical field of wastewater purification. The modified clinoptilolite belongs to artificially synthesized low silicon-aluminum ratio clinoptilolite, the frame silicon-aluminum ratio n(Si / Al) is 4-4.5; and the modified clinoptilolite is subjected to Na<+> exchange and calcining modification treatment. The modified clinoptilolite prepared by the method has a Pb<2+> saturated adsorbing capacity reaching 185mg / g; under the condition of coexistence of massive other metal ions, modified clinoptilolite still shows relatively strong selective adsorption for Pb<2+>. The modification method is simple and feasible, has high adsorption capacity, strong selectivity, and can be used for greatly improving the treatment efficiency of Pb<2+> containing wastewater.