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66 results about "Bone char" patented technology

Bone char (Latin: carbo animalis) is a porous, black, granular material produced by charring animal bones. Its composition varies depending on how it is made; however, it consists mainly of tricalcium phosphate (or hydroxylapatite) 57–80%, calcium carbonate 6–10% and carbon 7–10%. It is primarily used for filtration and decolorisation.

Fish bone charcoal adsorbent and preparation method and application thereof

The invention relates to fish bone charcoal adsorbent, a preparation method thereof and application to heavy metal waste water. The preparation method includes the following steps of 1 impurity removing, wherein an obtained fish bone raw material is stirred and scalded in water to remove impurities; 2 drying, wherein the fish bones are put into a drying oven to be dried after the impurities are removed; 3 pulverizing, wherein the dried fish bones are pulverized in a pulverizer, and obtained fish bone dust serves as an adsorbent raw material; 4 high-temperature roasting, wherein the prepared fish bone dust is roasted and carbonized at high temperature, naturally cooled to the room temperature and then taken out to obtain the fish bone charcoal adsorbent. The preparation method has the following advantages that fish processing waste is low in price and easy to obtain, as the fish processing waste is prepared into fish bone charcoal, the potential value of the fish processing waste can be developed further, and the environmental pollution caused by discarding the fishing processing waste can be effectively reduced. In addition, the prepared bone charcoal is high in stability and adsorbability, easy to regenerate after absorption and reusable.
Owner:WUHAN UNIV OF TECH

Preparation method of high-performance bone black

InactiveCN103121681ALarge specific surface areaStrong adsorption and purification abilityCarbon compoundsFurnace temperatureAqueous solution
The invention discloses a preparation method of high-performance bone black. The preparation method comprises the following steps of: firstly, crushing animal bone which is subjected to de-fatting and degumming into grains of 1-5mm; secondly, feeding the granular animal bone into a carbonizing and activating furnace, raising the furnace temperature to be at 500-550 DEG C in velocity of 5-10 DEG C / min; subsequently adding a composite activating agent; continuously raising the temperature to be at 650-750 DEG C and keeping the constant temperature for 1-3hours; rapidly cooling the furnace temperature to be at 150-180 DEG C and stopping feeding the composite activating agent, and discharging when the furnace temperature is reduced to be at 100 DEG C; adding the carbonized and activated bone black into an alkali water solution, and introducing steam to boil and wash for 5-10 times; putting the boiled and washed bone black into a carbon dioxide water solution to be washed for 5-10 times so as to adjust the pH value to be at 7.0-8.0; and fishing out the bone black after being washed, drying in air or drying in an oven so as to obtain a finished product, namely, the high-performance bone black. The preparation method has the characteristics of simple process and low cost, and the prepared bone black is strong in adsorption and purification capability.
Owner:BEIJING ZHONGSHIHONG INSTALLATION ENG

Preparation method of bone char fluoride removal agent loaded with aluminium ions

The invention relates to a preparation method of a bone char fluoride removal agent loaded with aluminium ions, belonging to the field of drinking water fluoride removal treatment. In the method, bone char of certain mass is put into an aluminium salt solution of certain volume; the mixture of the bone char and the aluminium salt solution is oscillated for certain time under certain condition; the bone char is taken out, washed by clear water and dried under room temperature. The mass ratio between the bone char and the aluminium salt solution is 1:8-1:12. The condition of the oscillation is as follows: the bone char and the aluminium salt solution is fully mixed in the process of oscillation, the time of oscillation is not less than 24h, the temperature of the mixture is kept at 20-40 DEG C during oscillation. Batch adsorption tests show that the adsorption capacity of the aluminium-loaded bone char fluoride removal agent is 60% higher than that of ordinary bone char fluoride removal agents. Used in the areas taking high-fluoride ground water as drinking water resource, the fluoride removal agent can effectively ensure the residents with drinking water safety, reduce the cost for producing water and the workload of daily maintenance of water supply engineering simultaneously.
Owner:TSINGHUA UNIV

Anticorrosion and antibacterial aluminium alloy surface treating agent

The invention discloses an anticorrosion and antibacterial aluminium alloy surface treating agent which comprises a component A and a component B, wherein the component A comprises the following materials in parts: 0.5-1 part of benzalkonium bromide, 0.4-1 part of flaxseed gum, 0.4-1 part of sodium N-lauroylsarcosinate, 2-4 parts of diethylene glycol, 3-4 parts of sodium phosphate, 0.9-1.5 parts of 3-methoxybutyraldehyde dimethyl acetal, 2-3 parts of glycerinum, 2-3 parts of silane coupler KH-858 and 40-50 parts of deionized water; the component B comprises the following materials in parts: 0.4-1 part of 1-methyl-2-pyrrolidinone, 1-2 parts of potassium iodide, 0.3-1 part of bone black, 1-2 parts of ammonium polyphosphate, 0.3-0.6 part of magnesium fluoride, 2-4 parts of a coalescing agent, 10-12 parts of a silane coupling agent KH560 and 70-90 parts of deionized water. According to the invention, a film formed on the surface of aluminium alloy by the surface treating agent is excellent in corrosion resistance, antibacterial property, acid-base resistance, salt frog resistance and high in rust resisting property; the film layer is firm, excellent in compactness, uniform in shape and high in adhesive force.
Owner:铜陵创能动力机械有限公司

Production method of iron and aluminium compound bone char fluorine removal agent and produced fluorine removal agent

The invention provides a production method of an iron and aluminium compound bone char fluorine removal agent and the produced fluorine removal agent. The production method comprises the following steps of (1) thoroughly washing the surfaces of livestock bones, and at 400-450 DEG C, conducting carbonization for 1.5-2 h to obtain bone char; (2) grinding and sieving the bone char obtained in the step (1) after cooling the bone char obtained in the step (1), and conducting drying after conducting washing to obtain bone char particles; and (3) soaking the bone char particles obtained in the step (2) in a Fe2(SO4)3 solution in a mass percentage concentration of 2-8% according to a solid to liquid ratio of 1 to (2.5 to 10) for 0.3-0.7 h, conducting drying after conducting washing, then accordingto a solid to liquid ratio of 1 to (3 to 8), soaking the bone char particles in a Al2(SO4)3 solution in a mass percentage concentration of 3-10% for 0.5-1.5 h, and conducting drying after conductingwashing to obtain the Al2(SO4)3-Fe2(SO4)3 compound bone char fluorine removal agent. The adsorption capacity of the iron and aluminium compound bone char fluorine removal agent is 8.5 times of that ofbone char which is not loaded with iron and aluminium ions, so that a fluorine removal effect is excellent.
Owner:NANJING RONGZHONG ENVIRONMENTAL ENG RES INST CO LTD

Preparation method of composite permeable bricks

The invention relates to a preparation method of composite permeable bricks, belonging to the technical field of building materials. Coal gangue and blast furnace slag are used as basic materials; particles are activated by using hydrochloric acid to removing impurities, carrying out expanded void treatment and using a surfactant and a physical grinding-aid method; the activated particles with improved activity are then mixed with sea mud, animal bone powder and the like; a dispersing agent is used for improving the sufficient dispersing and mixing of the raw materials; in a calcination process, the sea mud is firstly enabled to form ceramic-like particles, and the gas generated by the decomposition of bamboo chips and additives in auxiliary agents is used for pore formation so as to formpores; secondly, bone char is formed by the animal bone powder, so that the biological activity and the water permeability are improved; finally, hydroxyl calcium phosphate is combined with calcium carbonate in the raw materials so as to form synthetic bone char, so that the activity is further improved; furthermore, tetrabutyl titanate is decomposed to generate dioxide silicon, so that the self-cleaning effect of the permeable bricks is improved; part of iron elements are loaded, so that the pore cleaning ability and the water permeability are improved.
Owner:FOSHAN WANHE NEW ENERGY TECH CO LTD

Stevia rebaudianum organic fertilizer and preparation technology thereof

The invention discloses a stevia rebaudianum organic fertilizer and a preparation technology thereof. The organic fertilizer is prepared from, by weight, 15% of stevia rebaudianum fermentation powder, 9% of potassium sulfate, 10% of diammonium sulfate, 13% of cottonseed cakes, 22% of sesame meal, 18% of monosodium glutamate offal, 5% of fish meal, 4% of silkworm chrysalis and 13% of bone black; the N content of above raw materials is not lower than 8%, the P content of the raw materials is not lower than 7%, the K content of the raw materials is not lower than 4%, and the total content of organic matters is not smaller than 65%. The preparation technology comprises the following steps: screening all the raw materials, and detecting the respective content of components; respectively drying and crushing the raw materials; and stirring and mixing the raw materials in a V-shaped vacuum sealing tank according to above formula proportions, compacting the obtained mixture by a granulator to prepare particles, sieving the particles, and cooling and packaging the sieved particles to form a product. The fertilizer can improve the self immunity of plants, improves the growth of beneficial microbes in soil, improves the components of the soil, prevents soil ageing and continuous plowing work soil fatigue, decomposes chemical pesticides residual on crops and in soil, improves the quality of the crops, and can be applied to greenhouse vegetables, fruits, grain crops and other crops.
Owner:QINGDAO WEIYE FORGING & STAMPING MACHINERY CO LTD

Preparation method of fluorion adsorbent

The invention provides a preparation method of a fluorion adsorbent, and belongs to the technical field of adsorbents. The preparation method comprises the following specific preparation processes: cleaning natural zeolite with deionized water until no suspended impurities are generated, and then drying; putting the dried natural zeolite in an aluminium sulfate solution for soaking, then adding aNaOH solution, stirring and then performing vacuum filtration, and calcining a solid after vacuum filtration; uniformly mixing the calcined modified zeolite, kaolin, zirconium oxychloride and bone char; adding an acetic acid solution in the mixture to perform acidification; then adding a cerous nitrate solution and a titanium sulfate solution; and regulating the pH value of the solution until thesolution is alkaline, then standing, filtering, washing a filtered-out material with deionized water until the filtered-out material is neutral, and drying to prepare the fluorion adsorbent. The preparation method is low in cost, environmental-friendly and harmless, natural zeolite is modified with Al2O3, natural zeolite is combined with kaolin, zirconium oxychloride and bone char that have relatively strong fluorine ion adsorption capacity, and the synergistic interaction effect of bone char and other substances are used, so that the prepared product is high in fluorine ion adsorbability andhigh in fluorine ion adsorption capacity.
Owner:SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH

Preparation method and application of co-pyrolyzed biochar of pig bones and bamboo wood

The invention relates to the technical field of biochar, in particular to a preparation method and application of co-pyrolyzed biochar of pig bones and bamboo wood. The preparation method comprises the following steps: (1) impurity removal: stirring and scalding the pig bones and the bamboo wood respectively in water of a certain temperature to remove impurities; (2) drying: drying the pig bones and bamboo wood after the impurities are removed at a certain temperature; (3) pulverizing: pulverizing the dried pork bones and bamboo wood respectively to obtain pork bone powder and bamboo powder; (4) co-pyrolysis: mixing the prepared pork bone powder with the bamboo powder in a certain ratio, then co-pyrolyzing at a certain temperature, and then cooling to room temperature to obtain the co-pyrolyzed biochar. The preparation method provided by the invention is simple, the raw materials are easy to obtain, the method is high in stability, the repeatability is high, the industrial production is facilitated, and the prepared co-pyrolyzed biochar of the pig bones and the bamboo wood combines the advantages of bone charcoal and bamboo charcoal, so that the effect of effectively treating mixedwastewater can be realized, and the effect is higher than that of single bone charcoal or bamboo charcoal.
Owner:WUHAN UNIV OF TECH

Bone black capable of efficiently oxidizing trivalent arsenic in water and application of bone black

The invention discloses bone black capable of efficiently oxidizing trivalent arsenic in water and application of the bone black. The bone charcoal is prepared by the following steps: crushing ox bones into particles with the particle size of less than 0.5 cm, then cleaning ox bone powder with water, and drying the ox bone powder; putting the ox bone powder into a vacuum tube furnace, heating to 500-1100 DEG C under the protection of nitrogen or inert gas, and keeping for 1-3 hours to obtain bone black before acid treatment; soaking the prepared bone black before acid treatment in an acid solution, then washing with water until the pH value of the solution does not change and finally drying to obtain the bone black capable of efficiently oxidizing trivalent arsenic in water. The bone blackhas an ultra-large specific surface area (more than 1000m < 2 >/g) and can directly utilize oxygen to generate reactive oxygen species so that rapid oxidation of As (III) is realized, no additional chemical oxidation reagent is needed, an effective material can be provided for trivalent arsenic pollution remediation in environments such as water bodies, and the bone black is beneficial to application in practical engineering.
Owner:GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI

Mill tailing air-entraining brick

The invention discloses a mill tailing air-entraining brick. The mill tailing air-entraining brick is composed of the following raw materials of, by weight, 0.8-2 parts of molybdenum oxide, 0.1-0.2 part of titanous sulfate, 4-6 parts of sea-foam stone powder, 10-20 parts of mill tailings, 1-2 parts of potassium zirconium carbonate, 0.1-0.4 part of dimethylethanolamine, 2-3 parts of bone charcoal, 2-3 parts of high-boron calcium borate, 4-6 parts of celestite powder, 2-3 parts of volcanic ash, 0.2-0.4 part of aluminum sulfate, 260-300 parts of pulverized coal, 42-46 parts of quick lime, 0.3-0.5 part of aluminum powder, 37-40 parts of ordinary portland cement and 5-10 parts of a biomass resistance enhancement agent. According to the mill tailing air-entraining brick, the biomass resistance enhancement agent is added, waste resource barks and coconut shells are adopted as biomass raw powder, after enzyme treatment and alkali treatment, fiber materials with good pliability can be obtained, the fiber materials are blended with methylacrylic acid glycidyl ester and subjected to modification, the surface resistance is improved, then the modified substance is mixed with saline solutions, polyving alcohol and the like and dried, so that the effective recycle of resources is achieved, and meanwhile the stability of promoters is also improved.
Owner:合肥蓝科新材料有限公司

Making method of fish bone charcoal fluoride removal electrode

The invention discloses a making method of a fish bone charcoal fluoride removal electrode. According to the method, fish bone is cleaned and dried, is subjected to primary pulverization, and is put into a grinding machine to be ground into fish bone powder; the fish bone powder is put into a vacuum tubular furnace to be carbonized to obtain fish bone charcoal; the fish bone charcoal, PVDF and carbon black are taken and are uniformly stirred so that the materials are fully mixed to obtain a mixture; N,N-dimethylacetamide is added into the obtained mixture while the stirring is performed till slurry is obtained; the slurry is stirred and mixed for 2 to 4h; the stirred slurry is uniformly coated on an electrode plate; the electrode plate coated with the slurry is put into a drying oven to be dried; the fish bone charcoal fluoride removal electrode is obtained. The major ingredient of the fish bone charcoal is hydroxyapatite; a porous structure is realized; the fluoride can be removed in modes of in exchange, adsorption, dissolution precipitation and the like. The fish bone charcoal fluoride removal electrode can effectively remove fluoride ions under the condition of low energy consumption. Therefore the fish bone charcoal fluoride removal electrode has the promotion value in the fluoride-containing sewage treatment aspect.
Owner:WUHAN UNIV OF TECH

Rural small well water defluorination device and application method thereof

The invention relates to a small-scale rural well water defluorination device and an application method thereof, belonging to the technical field of water treatment. The present invention is placed at the wellhead, and the well water is connected with a small electric pump through a pipeline, and the small electric pump pumps the well water into the defluoridation pretreatment part, and the well water is filtered through a filter net after being treated by the pretreatment filter element and enters the defluorination part, and the well In the defluoridation part, the water is treated by the defluoridation filter element to remove fluoride, and then filtered through the filter screen into the water storage tank, and finally discharged from the faucet. The device of the invention is simple in structure, and the only energy consumption is a small electric pump, so that it can be applied in remote areas, easy to operate, and does not need human control. When water is needed, the electric pump can be turned on. The materials used in the invention are mainly activated alumina and bone charcoal. These two materials are low in price and have a good defluorination effect. They are also easy to obtain in remote rural areas. Even in remote areas, the materials in the device can be replaced, which expands the scope of the present invention. application range.
Owner:常州水精灵环保设备有限公司

Environmental remediation method for removing chlorohydrocarbon by catalyzing Fe(OH)2 through in-situ constructed bone black

The invention relates to the technical field of environmental governance, in particular to an environmental remediation method for removing chlorohydrocarbon by catalyzing Fe(OH)2 through in-situ constructed bone black. The method comprises the following steps of pouring a bone black suspension, a bivalent ferric salt solution and an alkaline solution into a target contaminated site, or mixing thebone black suspension, the bivalent ferric salt solution and the alkaline solution to obtain a bone black catalyzed Fe(OH)2 composite remediation material, pouring the bone black catalyzed Fe(OH)2 composite remediation material into the target contaminated site, constructing a bone black catalyzed Fe(OH)2 reaction system in situ, and carrying out in-situ remediation. According to the method, chlorohydrocarbon in soil and underground water is subjected to reductive dechlorination degradation by using a bone black catalyzed Fe(OH)2 reaction system, the remediation system is simple and effective, the chlorohydrocarbon can be quickly dechlorinated and degraded, and the removal efficiency is high; the method is used for in-situ remediation, has a good mass transfer effect, has no special limitation on an application method, is easy to implement, is slightly influenced by temperature and pH in the reaction process, and has a wide application range, so that the method has higher popularization value.
Owner:JINAN UNIVERSITY
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