1278 results about "Diatom" patented technology

The invention provides a soil improvement type straw compound organic fertilizer and a preparation method of the soil improvement type straw compound organic fertilizer. The soil improvement type straw compound organic fertilizer is prepared from the following raw materials in parts by weight: 30 to 35 parts of rice straw, 25 to 30 parts of animal excrement, 20 to 25 parts of biological charcoal, 10 to 15 parts of soybean meal, 5 to 10 parts of cassava residue, 5 to 10 parts of diatom ooze, 2 to 2.5 parts of plant ash, 2 to 2.5 parts of turfy soil, 2 to 3 parts of zeolite powder, 3 to 4 parts of a microorganism bacterium agent, 2 to 3 parts of sodium benzoate, 2 to 3 parts of ammonium monohydrogen phosphate, 1 to 2 parts of calcium chloride, 1 to 2 parts of amino acid, 1 to 2 parts of starch, 1 to 2 parts of molasses powder and 1 to 2 parts of humic acid. The soil improvement type straw compound organic fertilizer takes plant wastes as raw materials; the quality of soil can be easily improved and the production cost can also be reduced, so that the physicochemical properties of the soil are improved, and the structure of the soil is comprehensively improved, and furthermore, the soil quality has the effects of softness, air permeability, water retention and fertilizer conservation; the aim of producing an environment-friendly high-quality organic fertilizer through preferably selecting heavy metal capable of being passivated, the biological charcoal capable of improving the fertilizer efficiency of the organic fertilizer, and conversion products of organic wastes including the biological humic acid and the like as composting base materials, and optimizing a composting process.

A xerogel film exhibiting antifouling properties. The films are made using long-chain alkyltrialkoxysilanes, short-chain alkyltrialkoxysilanes, aminoalkyltrialkoxysilanes, alkylaminoalkyltrialkoxysilanes, dialkylaminoalkyltrialkoxysilanes, and perfluororalkyltrialkoxysilanes as sol-gel precursors. The films can be used as coatings on surfaces to reduce or eliminate fouling resulting from attachment and/or growth of biofoulants such as algae, diatoms, bacteria, barnacles, and biofilms.

A system and methods for enhancing mass production of algae, diatoms or other photosynthetic organism is described. The system and methods are useful in applications such as energy production, fuels, foods, pharmaceuticals, plastics, and CO₂ fixation. The system and methods involve the use of a submersed rotating pole(s) on which lights are branched out at strategic intervals in order to appropriately increase contact between photosynthetic water-based organisms and light. Rotation can timed so as to disperse light and/or nutrients when the organism is in a receiving mode. A process flow system is also described which can be scaled for the mass production of photosynthetic based organism. This process system makes use of centralized automatable controls and linear or parallel growth tanks. The system can be used for continuous or batch methods of production of bio-mass whose values such as lipids or carbohydrate can be extracted for the production of fuels or other byproducts.

The invention discloses environment-friendly diatom ooze wall material powder and a wall material as well as a preparation method and application thereof. The diatom ooze wall material with macromolecule sieve structure is prepared by taking a plurality of natural environment-friendly non-metal material having strong adsorbability and good plasticity as main materials through a simple process. The environment-friendly diatom ooze wall material powder has the advantages of low cost, air purification, moisture absorption, deodorization, inflaming retarding, heat insulation, easy popularization,and the like.

The invention discloses a nano composite diatom ooze paint, which is prepared by mixing and stirring a diatom ooze powder material and water according to a mass ratio of 1:0.9 to obtain a diatom ooze material, wherein the diatom ooze material is used for scrapping a bottom layer; and adding a diatomite-loaded nano TiO2 material to the diatom ooze material, mixing and stirring, and then using for coating texture shaping construction, wherein 6 g of diatomite-loaded nano TiO2 material is added to each kg of the diatom ooze material, and the diatom ooze powder material is prepared by stirring 20-50% of selected diatomite, 20-35% of quartz sand, 10-40% of ash calcium powder, 0.1-0.8% of white carbon black, 5-15% of heavy calcium carbonate powder, 0.6-3% of redispersible rubber powder, 0.5-1% of cellulose ether and 1-3% of negative ion powder. In the invention, the diatomite-loaded nano TiO2 material is easy to disperse in powder, does not generate secondary agglomeration, can completely exert proper action, and has low cost.

The present invention relates to a purified, easily produced poly-beta-1->4-N-acetylglucosamine (p-GlcNAc) polysaccharide species. The p-GlcNAc of the invention is a polymer of high molecular weight whose constituent monosaccharide sugars are attached in a beta-1->4 conformation, and which is free of proteins, and substantially free of single amino acids, and other organic and inorganic contaminants. In addition, derivatives and reformulations of p-GlcNAc are described. The present invention further relates to methods for the purification of the p-GlcNAc of the invention from microalgae, preferably diatom, starting sources. Still further, the invention relates to methods for the derivatization and reformulation of the p-GlcNAc. Additionally, the present invention relates to the uses of pure p-GlcNAc, its derivatives, and/or its reformulations.

The invention discloses a seashell-diatom ooze wall surface decoration wall material and a production and construction method thereof. The decoration wall material comprises: 20 to 98 parts of shell powder, 8 to 30 parts of silica, 4 to 100 parts of kieselguhr, 2 to 20 parts of medical stone, 3.8 to 48 parts of mica powder, 2 to 10 parts of magnesium-rich silicate, 6 to 26 parts of scolecite, 1.5to 36 parts of hydrosilicate, 0 to 50 parts of titanium dioxide powder, 2 to 50 parts of calcium carbonate, 0.1 to 0.3 part of vegetable fiber, 1 to 30 parts of pigment, 4.8 to 40 parts of kelp powder, 1 to 30 parts of cold soluble polyvinyl alcohol powder and 1 to 20 parts of hydroxypropyl methyl cellulose. The production and construction method comprises: placing the raw material components into a stirrer for uniform stirring; filling the mixture in bags, packing the bags in boxes, sealing the boxes and storing the boxes in a storehouse; adding water into the mixture and stirring the mixture uniformly; and pasting the mixture on a wall surface to be decorated to make various texture patterns. The seashell-diatom ooze wall surface decoration wall material has the advantages of: (1) soft texture and no toxicity, fading nor stripping; (2), characteristics of eliminating indoor pollution, regulating indoor humidity, eliminating odor, isolating noises and offering high skin texture feel; (3) fire proofing and flame retarding; and (4) rich color.

Representative embodiments provide a liquid or gel separator utilized to separate and space apart first and second conductors or electrodes of an energy storage device, such as a battery or a supercapacitor. A representative liquid or gel separator comprises a plurality of particles, typically having a size (in any dimension) between about 0.5 to about 50 microns; a first, ionic liquid electrolyte; and a polymer. In another representative embodiment, the plurality of particles comprise diatoms, diatomaceous frustules, and/or diatomaceous fragments or remains. Another representative embodiment further comprises a second electrolyte different from the first electrolyte; the plurality of particles are comprised of silicate glass; the first and second electrolytes comprise zinc tetrafluoroborate salt in 1-ethyl-3-methylimidalzolium tetrafluoroborate ionic liquid; and the polymer comprises polyvinyl alcohol (“PVA”) or polyvinylidene fluoride (“PVFD”). Additional components, such as additional electrolytes and solvents, may also be included.

The invention relates to a method for preparing a roll-coating type diatom ooze environment-friendly inner-wall coating, which includes steps of: firstly choosing 30 parts of kieselguhr of 300 meshes to 350 meshes, 10 parts of rubber powder, 0.3 part of methyl fiber, 10 parts of talcum powder of 700 meshes to 900 meshes, 14.3 parts of heavy calcium carbonate powder of 400 meshes to 600 meshes, 5 parts of white cement of 300 meshes to 350 meshes, 5 parts of kaolin of 700 meshes to 900 meshes, 5 parts of concave-convex rod powder of 500 meshes to 700 meshes, 5 parts of titanium dioxide, 15 parts of calcium carbonate of 1250 meshes and 0.4 part of wood fiber. The materials are added accurately according to proportion and then placed in a horizontal high-speed disperser for evenly dispersing. The method mainly aims at solving the problems in the background technology, is easy to construct and cannot affect functions of diatom ooze.

The invention relates to a process for preparing diatom earth loading nanometer Ti2O material for purifying water and air, which belongs to the field of material process and environmental treatment. Diatom earth raw ore is filled with water and is churned and scattered, is screened, is sunken by gravity, and is eccentrically sunken, sulfuric acid is adopted to dissolve clay-type foreign matters which are left in pore passages after ores which mutually grow with diatom earth like quartz, feldspar, mica, and clay and the like and organic matters which are mixed such as grass roots and barks and the like are removed, and diatom fine soil is attained. Further, diatom fine soil is filtered, dried, and baked, and diatom fine soil after baked is filled with water, and is churned, and is filled with acid to regulate the PH value, and is filled TiCl4 solution, and is filled with ammonia sulfate solution to proceed hydrolytic decomposition deposition reaction, and product yield after the reaction is filtered, washed, dried, and baked to attain the nanometer Ti2O material.

The invention belongs to the technical field of environmental protection materials and relates to multi-functional photocatalyst diatom purification particles and a preparation method thereof. The preparation method includes the following steps of: uniformly stirring 50-70 parts of diatomite, 5-15 parts of attapulgite, 10-20 parts of zeolite powder, 5-10 parts of sepiolite, 5-8 parts of negative ion powder, 3-5 parts of far infrared ceramic powder, 20-30 parts of kaolin, 5-15 parts of nano-photocatalysts and proper deionized water, and then pelletizing the mixture; perform primary drying on pellets in a low-temperature drying furnace for 3-4 hours at a drying temperature of 100-300 DEG C; and activating the pellets in a high-temperature activating oven at a constant activation temperature of 550-650 DEG C for 2 hours. The prepared multi-functional photocatalyst diatom purification particles have higher porosity than activated carbon, and can decompose harmful substances such as formaldehyde, overcome the technical disadvantage that the activated carbon and other products only can adsorb but cannot decompose harmful substances and release negative oxygen ions and far infrared rays beneficial to a human body.

The fruit and vegetable fresh-keeping agent is placed in the paper bag or cloth bag. Its composition includes (1) active adsorbent, 0.5-5 portions, it is active carbon in which the potassium permanganate is adsorbed, active clay, attapulgite or diatoms; (2) oxygen absorbent, 0.5-5 portions, it is iron powder, (3) ethylene absorbent, 0.5-5 portions, it is zeolite or bentonite; (4). CO2 adsorbent, 0.5-5 portions, it is lime hydrate or coke molecular sieve; (5) antimicrobial agent, 1 portion, it is sodium benzoate; and (6) auxiliary agent, 1-10 portions, it is mixture formed from equi-mass sodium chloride and crystal sodium carbonate or mixture formed from equi-mass calcium chloride and crystal sodium carbonate. The adoption of said fresh-keeping agent can obtain obvious fresh-keeping effect.

The invention discloses a benthic diatom culture method for growing seedlings and an abalone fry culture method, which relate to an abalone culture technology. The invention is characterized by comprising the following steps: (1) starting culturing algaes 45 days before pulling seedlings, keeping the culture water temperature at 14 DEG C and the illuminance between 20001 and 30001x, controlling the light between 10001 and 15001x at the last culture after screening and eliminating algae culture for one and half a month, and laying ovum after 7 days; (2) adding nutrient salt at primary culture,wherein the adding ratio of N:P:Si:Fe is 5:1:1:1(ppm); (3) laying ovums about 5 millions for each pool and carrying out micro inflation; (4) changing water regularly after the ovums are laid and changing water twice a measuring range which is 24 hours; (5) carrying out running water culture after the ovums swim for 5 to 6 days and are adhered; (6) controlling the illuminance within 10001x after larvas metamorphose; and (7) dumping the pool after treating copepods at about 30 days of the culture period, adjusting the illuminance between 15001 and 20001x and peeling off baby abalones after about45 days. The methods have the advantages of improving the yield and preventing and treating a plate stripping disease.

The invention relates to a preparation method of an antifouling material having a crossed regular microstructure on the surface. The method comprises the following steps of: etching a microstructure with a crossed pattern on a photomask, and arranging crossed cylindrical basic units with conical tail ends in a staggered way to form an array; forming a microstructure of a specified depth on the surface of a silicon chip by adopting a plasma deep silicon etching process; and preparing the antifouling material with themicrostructure by adopting a method for rolling over and copying polydimethylsiloxane. Due to the adoption of the crossed pattern of the microstructure and the arrangement mode, the contact area between a fouling organism and the material is reduced, the surface hydrophobicity of the material is enhanced, and adhesion of fouling organisms such as ulva spores, diatoms, barnacle larvae and the like can be effectively prevented. According to the material, an antifouling effectis achieved by using the microstructure on the surface, and loss is avoided; and moreover, the antifouling material can be self-cleaned under the action of water current erosion, is an environmentally-friendly antifouling material, and can be used for preventing and eliminating bio-fouling on the surfaces of ships and marine structural objects under marine environment.

The invention discloses a diatom ooze decorative wall material modified by silicate mineral powder, and relates to the technical field of interior decoration materials. The diatom ooze decorative wall material is prepared from the following raw materials in percentage by weight: 30-35% of diatomite (325-800 meshes), 10-15% of clay sepiolite (200-300 meshes), 0.4-0.6% of sodium-based bentonite (200-400 meshes), 0.3-0.4% of fibrous sepiolite, 35-45% of sierozem (calcium content: 95%),10-20% of natural colored sand (5-10 meshes), 0.15-0.17% of high-strength adhesive, 0.01-0.05% of water-retention and thickening plasticizer, 0.01-0.1% of ecological pigments, 0.005-0.01% of wetting dispersant, and 0.03-0.04% of nano titanium dioxide diatomite composite photocatalytic material. The wall material disclosed by the invention has the advantages of simple production process, easily-purchased raw materials, low cost, simple construction, low cost, strong adsorption, easiness for maintenance, and capability of preventing dust retention and degrading formaldehyde, and the like.

The present invention involves growing diatoms on a surface for the purpose of forming nanoscale-sized siliceous structures on the surface. In accordance with the invention, diatom films are grown on various substrates, which are then fired to remove all organic material from the diatoms and produce a surface coated with intricate, nanoscale-sized structures. The nanoscale-sized structured surface is subsequently treated with a hydrophobic film-forming agent to form a structured self-cleaning surface.

The invention provides a method for detecting microalgae oil, belonging to the field of oil detection. The method solves the technical problems that the needed sample is large and the consumed time is long in the existing weighing method. The method comprises the following steps: 1, diluting microalgae culture solution to obtain diluent; 2, detecting the fluorescence intensity of the dyed diluent; 3, centrifuging the diluent, and detecting the fluorescence intensity of the dyed supernate; 4, detecting the fluorescence intensity of the undyed diluent; and 5, computing the maximum difference of the fluorescence intensity, and computing the content of the microalgae oil according to a fluorescence intensity-oil content standard curve. The method is applied to detecting the unicellular algae such as the chlorella, the scenedesmus, the spirulina, the diatom, the dinoflagellate, the chrysophyceae, the euglenophyta, the stonewort and the like, and is applied to detecting the macro algae which is preprocessed by cell discruption.

The invention discloses a biological diatom water treatment agent, which comprises diatomite, flocculant, activated carbon and water treatment engineering bacteria. The content of flocculant is 20 percent to 50 percent of the mass of diatomite; the content of activated carbon is 1 percent to 5 percent of the mass of diatomite; the content of water treatment engineering bacteria is 0.1 percent to 1 percent of the mass of diatomite. On one hand, the biological diatom water treatment agent of the invention has good absorption ability for the pollutant in the water; on the other hand, the denitrification capability of the immobilized microorganism improves the deficiency of denitrification capability of the diatomite. The invention can also increase the water treatment efficiency; the invention has a compact equipment structure, easy operation and high and stable water quality.

The invention discloses a preparing method of organic polymer-diatom earth composite coagulant, which comprises the following steps: pre-proceeding diatom earth raw material firstly; compositing with organic macromolecular flocculant; getting the organic polymer-diatom earth composite coagulant.

The invention discloses a method for treating aquaculture wastewater. The method comprises the following steps of: performing modular processing on wastewater by using microalgae and beneficial bacteria; and throwing snails, filter-feeding fishes and other aquatic animals into a water body to realize self-purification of an aquaculture water environment after the modular processing. Dominant and beneficial microalgae such as diatom, green algae and the like capable of absorbing nitrogen and phosphor in the aquaculture water body are screened out, inoculated, rapidly cultured and put into the aquaculture water body; the water color is regulated and the alga concentration is controlled by the methods of rational fertilization and rotifer inoculation; the beneficial bacteria are bacillus and photosynthetic bacteria capable of degrading organic matters and ammonia nitrogen in the water body; the beneficial bacteria and feed are proportionally mixed before the feed is put into the water body; after the feed is put into the water body, an underwater biomembrane taking the feed as a matrix is formed; the nitrogen, the phosphor and other harmful pollutants in the aquaculture water body can be effectively removed by jointly using the microalgae and the beneficial bacteria; simultaneously, the utilization efficiency of the feed can be improved by mixing the beneficial bacteria and the feed; and the water body is processed by using the microalgae and the beneficial bacteria, and then the snails and the filter-feeding fishes are put into the water body to prevent excessive multiplication of phycomycete, so that the self-purification of the aquaculture water environment can be realized.

The invention discloses a diatom ooze coating which is made of raw materials comprising, by weight, 15-25 parts of water, 0.6-2.6 parts of lignin or lignin derivatives, 10-15 parts of tourmalines, 0.1-0.3 part of silver oxide, 10-15 parts of titanium dioxide, 3-6 parts of precipitated barium sulphate, 5-15 parts of kaoline, 5-10 parts of sea-foam stone powder, 30-45 parts of nano diatomite, 0.5-1.5 parts of palladium, 5-10 parts of nanometer titania, 0.4-0.6 part of leveling agents, 1.5-4 parts of thickening agents, 0.6-1.2 parts of mildew preventives, 1-5 parts of active carbon nanoparticles, 0.5-3 parts of net-flavor emulsions, 8-15 parts of dispersible adhesive powder and 0-3 parts of pigment. The diatom ooze coating is excellent in breathability and moisture absorption, gas ion negatively charged can be released, human body synthesis and vitamin storage can be promoted, and human immune ability is improved; functions of sterilization, mold prevention, deodorization, air purification and fire prevention are achieved; the preparation method is simple, easy to operate and convenient for large-scale production.

The invention relates to the field of Rapana venosa artificial breeding, in particular to a Rapana venosa ecological breeding method. The method comprises: transferring egg bags into a plastic basket or net cage (10-20mesh) for suspended hatch in a nursery pond and charging air continuously, wherein the density of the egg bags is 5,000 to 8,000/m<3>; breeding larvae at a density of 1/ml with bait made of chlamydomonas (diatom and tetraselmis are preferred) in an amount of 1.0 to 12.0*10<4>/ml every day at a water temperature of 22 to 26 DEG C; continuously charging air, changing 1/2 of water every day; and when the larvae grow three whorls to a size of 700 to 800 micrometers, placing the larvae in to 60-mesh net bags, cages or tanks together with double-shell spats (animal baits for transformed Rapana venosa) for sea breeding.