19 results about "Bone char" patented technology

The invention relates to the technical field of planting fertilizers, in particular to a multifunctional organic planting fertilizer and a preparation method thereof.The multifunctional organic planting fertilizer comprises an organic base material, a heavy metal passivation system, a slow release system, a microbial system and a function strengthening system, and is characterized in that the organic base material comprises, by weight, 20-30 parts of decomposed sheep manure; 15 to 20 parts of soybean meal; 10 to 15 parts of corn straw powder; the heavy metal passivation system comprises the following raw materials in parts by weight: 8-12 parts of attapulgite clay; 5 to 8 parts of humic acid; and 3-5 parts of bone black. The organic base material and the mineral material synergistically passivate heavy metals, the soil pollution risk is reduced, a slow release system is combined with microbial metabolism, long-term stable supply of nutrients is guaranteed, function strengthening components naturally expel insects, dependence on chemical pesticides is reduced, the decomposition degree and flora activity are accurately controlled in the whole-process technology, and it is ensured that the fertilizer is safe and efficient; compared with a traditional fertilizer, the fertilizer and the preparation process thereof have the functions of ecological restoration, nutrient long-acting and biological prevention and control.

The application relates to the technical field of soil remediation, and particularly discloses a composite soil remediation agent, a preparation method and application thereof.A composite soil remediation agent comprises modified calcined oyster shell, plant biomass carbon, bone charcoal, compost, microbial preparation and ferrous sulfide; the preparation of the modified calcined oyster shell comprises the following steps: crushing, calcining oyster shell, and then adding a modified solution prepared from urea, rhamnolipid, iminodisuccinic acid tetrasodium and sodium dodecylbenzenesulfonate to modify the calcined oyster shell, so that the modified calcined oyster shell is obtained.The composite soil remediation agent can effectively adsorb and fix heavy metals in slightly heavy metal contaminated soil, reduce the mobility and bioavailability of the heavy metals, and thus reduce the harm of the heavy metals to soil and crops.

This invention relates to the fields of environmental protection, resource utilization, and agricultural biotechnology, specifically to a method for converting insoluble phosphorus using *Enterobacter horneri* microorganisms, as well as a highly efficient phosphorus-solubilizing agent and its applications. The highly efficient phosphorus-solubilizing agent comprises phosphorus-solubilizing bacteria, bone char, and a culture medium; the phosphorus-solubilizing bacteria is *Enterobacter horneri* HS-6. By combining *Enterobacter horneri* HS-6 with bone char, both the phosphorus-solubilizing ability of *Enterobacter horneri* HS-6 and the phosphorus resources of bone char can be fully utilized. The surface of bone char provides a carrier for the growth and reproduction of the microorganisms, and its insoluble phosphorus can be converted into soluble phosphorus. This phosphorus-solubilizing agent shows great promise in the preparation of bio-fertilizers, agricultural soil improvement, bone char phosphorus resource recovery, and the promotion of crop growth. This method for converting insoluble phosphorus using *Enterobacter horneri* microorganisms not only effectively improves the utilization efficiency of phosphorus resources and reduces dependence on limited phosphate rock resources, but also has significant implications for promoting sustainable agricultural development.

The invention discloses a method for converting phosphorus in bone black into soluble phosphorus by adopting penicillium desert, and belongs to the technical field of waste conversion and utilization. According to the method, the indissolvable phosphorus in the bone black is efficiently and stably converted into the soluble phosphorus by utilizing the specifically preserved Penicillium desertorum, the phosphorus dissolving amount within 10 days is up to 2187.50 mg / L, the process is environment-friendly, the raw material adaptability is high, and a feasible microbial conversion way is provided for high-valued utilization of bone black phosphorus resources.

The invention belongs to the technical field of ceramic materials, and particularly relates to pearl porcelain based on pearl microelement coloring and a preparation method of the pearl porcelain. The colored pearl porcelain based on pearl trace elements is prepared from the following raw materials in percentage by mass: 25%-33% of natural colored pearl powder, 16%-24% of synthetic bone black, 16%-20% of Longyan soil, 10%-14% of Datong soil, 8%-10% of potassium feldspar, 6%-8% of quartz and 4%-6% of calcined talc. The natural colored pearl powder contains zinc, strontium, copper, chromium, cobalt and other trace elements. According to the preparation method of the pearl porcelain based on pearl microelement coloring, provided by the invention, the natural colored pearls are added into the formula of the ceramic body, and unique color and luster which are healthy, environment-friendly and rich in cultural connotation are created on the ceramic body by utilizing the inherent microelements of the pearls and through a high-temperature furnace transmutation firing process. The pearl-like optical appearance is realized.

This invention discloses a simultaneous nitrogen and phosphorus removal system for constructed wetlands based on a sulfur-bone char-limestone-ceramsite composite packing material and its application method. It relates to the fields of wastewater ecological treatment and constructed wetland enhancement. This invention constructs a quaternary composite packing material system of sulfur-bone char-limestone-ceramsite, integrating three mechanisms: autotrophic denitrification, heterotrophic denitrification, and crystallization precipitation, to achieve efficient simultaneous removal of nitrogen and phosphorus from wastewater. In an anaerobic environment, sulfur acts as an electron donor to drive autotrophic denitrification, eliminating the need for an external carbon source. Hydroxyapatite in the bone char induces phosphorus formation and precipitation for phosphorus removal, and its residual organic matter further enhances heterotrophic denitrification. Ceramsite provides biofilm attachment sites to ensure synergistic reactions. Limestone replenishes alkalinity, neutralizes acidic substances, stabilizes the substrate pH to suit microbial activity, and optimizes packing porosity and hydraulic mass transfer efficiency. Furthermore, molten sulfur acts as a binder to prevent bone char pulverization and loss, improving packing stability and extending system operating cycles.

The utility model belongs to the technical field of wastewater treatment, and particularly relates to a high-density sedimentation tank for removing fluorine and heavy metals, which comprises a high-density sedimentation tank, a dosing tank is fixedly mounted on the left side of the high-density sedimentation tank, an adsorption tank is fixedly mounted on the right side of the high-density sedimentation tank, calcium salt, sodium carbonate and a PAM (polyacrylamide) flocculant are added into the dosing tank, and the adsorption tank is fixedly mounted on the right side of the high-density sedimentation tank. After being stirred and mixed by the mixing assembly, the wastewater enters the high-density sedimentation tank and begins to settle, one part of sludge generated by sedimentation is sent back to the dosing tank by the sludge return pump, the most part of the sludge is discharged by the sludge discharge pump, and the sludge scraping assembly is installed to avoid sludge accumulation; according to the high-density sedimentation tank, residual fluorine ions and heavy metals in wastewater are continuously treated by adding adsorbents such as activated aluminum oxide, bone black and zeolite, after the adsorbents are saturated in adsorption, materials are rapidly changed through the material changing assembly, and the high-density sedimentation tank improves the treatment effect on large-scale fluorine and heavy metals by combining a chemical precipitation method and an adsorption method.

A method of manufacturing a bone char absorbent includes the following steps. A drying step is performed on an initial bone material to form dried bone material. A torrefaction step or a co-torrefaction step is performed on the dried bone material to form torrefied bone material or a co-torrefied mixture, in which the torrefaction step and the co-torrefaction are performed at a heating rate of 10° C. / min to 20° C. / min to a torrefied temperature or a co-torrefied temperature of 175° C. to 300° C. for 15 minutes to 60 minutes. A cooling step is performed on the torrefied bone powders or the co-torrefied mixture to form the bone char absorbent. The mineral phase of the bone char absorbent includes carbonated hydroxyapatite, thereby enhancing the adsorption capacity for trivalent arsenic ions.

The application discloses a kind of cerulean Ru porcelain ceramic products and preparation method thereof, belong to the technical field of ceramics.Cerulean Ru porcelain ceramic product, including ceramic body and glaze layer composition, the glaze layer is attached to the surface of the ceramic body, the glaze layer includes the following components: potassium feldspar, hubei feldspar, silica, stalactite, calcined talc, datong soil, barium carbonate, bone charcoal, tin oxide and colorant 1.9~2.1 parts.The prepared cerulean Ru porcelain ceramic product has excellent glaze strength, and high gloss, and good visual effect of glaze.

A polymer composition containing glass fibers and having an excellent balance of properties is disclosed. The polymer composition exhibits a comparative tracking index of greater than about 400 volts and a dielectric strength of greater than about 4 kV / mm. In addition, the polymer composition can have excellent surface properties even if a part of a longer length is molded. The polymer composition may contain at least one stabilizer in combination with calcium phosphate, such as hydroxy calcium phosphate. In one aspect, calcium phosphate is present in the polymer composition in the form of bone black.

The application discloses a preparation method and application of a heavy metal adsorbent, and belongs to the field of waste resource utilization and water treatment technology. The preparation method comprises the following steps: preparing bone charcoal by taking animal bones as raw materials, modifying the bone charcoal by using a surfactant to prepare modified bone charcoal, and loading magnetic nano-particles on the modified bone charcoal to obtain a magnetic biological adsorbent capable of effectively removing heavy metal ions in sewage. The prepared adsorbent has good adsorption performance and biodegradability, does not cause secondary pollution to the environment, greatly reduces the harm of heavy metal ions in sewage, and the magnetism of the adsorbent itself is beneficial to the collection and recycling of the adsorbent, and the utilization rate of the material is improved.

Systems and processes for treating a contaminated aqueous flow which includes contaminants, such as munitions contaminants including metallic contaminants, energetic material contaminants, and / or propellant contaminants, are disclosed. The systems include an adsorption layer which includes bone char particulates, titanium dioxide particulates and / or aluminum oxide particulates which promotes adsorption of the contaminants upon contact of the contaminated stream and the adsorption layer so as to produce a treated aqueous flow, which is depleted in the munitions contaminants. Optionally, the adsorption layer can be buried in granulates particles so the contaminated aqueous water can percolate down through the earth and towards the adsorption layer, so the treated water can further percolate through the earth. The system can alternatively include more than one adsorption layer, which can be arranged in series or in parallel, in situ or ex situ.

The invention relates to the technical field of carbon material preparation and industrial wastewater treatment, in particular to preparation of a nitrogen-doped bone black catalyst and a method for treating coking wastewater. The preparation process of the nitrogen-doped bone black catalyst comprises the following steps: S1, preparing bone meal slurry; s2, preparing bone black precursor powder; s3, bone pre-carbonization; and S4, preparing the nitrogen-doped bone black catalyst. The nitrogen-doped bone black material is wide in source, does not contain metal components, and is free of secondary pollution; the coking wastewater is economically and efficiently treated by activating peracetic acid with nitrogen-doped bone black, so that the problem that refractory organic matters are difficult to treat in an existing coking wastewater treatment process is solved; the nitrogen-doped bone black catalyst is combined with the membrane, peracetic acid generated in situ can be activated, COD in the coking wastewater is further degraded, the safety problem caused by direct putting of peracetic acid and the effluent acidification problem are avoided, and meanwhile recycling of nitrogen-doped bone black is facilitated.

The invention relates to a method for preparing a phosphorus-doped bone charcoal catalyst and deeply treating coking wastewater, phosphorus-modified animal bone charcoal is formed by doping phosphorus in animal bone charcoal, and the phosphorus-modified animal bone charcoal is used for activating peroxyacetic acid to treat biochemical effluent of the coking wastewater. The phosphorus-doped bone charcoal has the advantages that the micro-nano structure of the bone charcoal is remarkably improved by phosphorus doping, so that the phosphorus-doped bone charcoal has higher specific surface area and porosity than other biochar, and shows an adsorption effect on nonbiodegradable organic matters in coking wastewater superior to that of other bone charcoal. The phosphorus-doped bone charcoal activated peracetic acid is adopted to deeply treat the coking wastewater, compared with an existing carbon material, the phosphorus-doped bone charcoal material is wide in source, the secondary pollution problem caused by a traditional metal-doped bone charcoal material, such as high toxicity of iron sludge and cobalt ions, is solved, the porous bone charcoal is prepared through nonmetal doping, and the application prospect is wide. The specific surface area of the material can be increased, and active sites are increased.

This invention relates to the fields of environmental protection, resource utilization, and agricultural biotechnology, specifically to a phosphate-solubilizing bacterial agent with high effective phosphorus conversion, its preparation method, bio-fertilizer, and its applications. The phosphate-solubilizing bacterial agent comprises phosphate-solubilizing bacteria, bone char, and a culture medium. The phosphate-solubilizing bacteria is *Pantotheca acuminata* CT-3. By using bone char to prepare this phosphate-solubilizing bacterial agent with high effective phosphorus conversion, the full utilization of phosphorus resources in bone char can be greatly promoted, achieving efficient dissolution of insoluble phosphorus from bone char. This phosphate-solubilizing bacterial agent with high effective phosphorus conversion combines *Pantotheca acuminata* CT-3 with bone char, utilizing both the phosphorus-solubilizing ability of *Pantotheca acuminata* CT-3 and the phosphorus resources of bone char. This phosphate-solubilizing bacterial agent with high effective phosphorus conversion shows great promise in the preparation of bio-fertilizers, in agricultural soil improvement, in the recovery of phosphorus resources from bone char, and in promoting crop growth.

The application relates to the technical field of agricultural fertilizers, and discloses a method for activating peanut phosphorus and increasing yield by pig bone micro-nano bone charcoal, which applies pig bone micro-nano bone charcoal particles made of defatted pig bone source bone charcoal and potassium fulvate dispersion solution. The potassium fulvate on the surface of the particles can construct a negative charge barrier to inhibit the secondary agglomeration of bone charcoal caused by calcium ion bridging. When applied, the above particles are used as base fertilizer, seed coating or combined with fine sand to be applied into selected plots in a positioning hole, the synergistic effect of the potassium fulvate coating layer on the surface of the bone charcoal and the exogenous organic acid is utilized to drive the bone charcoal to occur a heterogeneous acidolysis reaction to activate phosphorus; and water management in the growth period is combined to induce the peanut root system to grow in the bone charcoal fertilization area. The application solves the problems that the bone charcoal is easily agglomerated and passivated in a complex soil environment and internal phosphorus release is slow, improves the absorption and utilization efficiency of phosphorus, and promotes the yield increase of peanuts.

The invention discloses a method for converting phosphorus in bone black into soluble phosphorus by adopting penicillium fimbriatum, and belongs to the technical field of waste conversion and utilization. According to the method disclosed by the invention, the insoluble phosphorus in the bone black is efficiently and stably converted into the soluble phosphorus by utilizing the specifically preserved Penicillium seckii, the phosphorus dissolving amount within 10 days is up to 1616.71 mg / L, the process is environment-friendly, the raw material adaptability is high, and a feasible microbial conversion way is provided for high-valued utilization of bone black phosphorus resources.

The invention relates to the technical field of industrial wastewater treatment, in particular to a method for preparing a bromine-doped bone black catalyst and treating coking wastewater. The preparation method specifically comprises the following steps: S1, preparing bone meal slurry; s2, preparing a bone black precursor; s3, bone pre-carbonization; and S4, preparing the bromine-doped bone black. The treatment method specifically comprises the following steps: S1, preparing a bromine-doped bone black filter membrane; s2, carrying out a degradation reaction on the coking wastewater. The peroxyacetic acid activating agent has an excellent peroxyacetic acid activating effect, and the bone black has a larger specific surface area and richer active functional groups. Generation of tar in the carbonization process is effectively avoided, and subsequent bromine loading is facilitated; compared with other biochar, the bone black with specific calcium phosphate content is easier to form bromine oxygen sites together with bromine-containing compounds, is more beneficial to improving the concentration of oxygen-series active agents and peroxides, is beneficial to degradation of pollutants in the coking wastewater, and is an efficient, green, universal and low-cost coking wastewater deep treatment method.

The invention provides a method for improving acid black soil in a cold region by using a sustained-release material prepared on the basis of waste livestock bones. According to the method, waste livestock bones are used as a basic raw material, phosphate and attapulgite are mixed for granulation, bone black is prepared after the livestock bones are pyrolyzed, coating liquid is prepared through urea modification, and then the bone black and the coating liquid are compounded into the sustained-release material. The composite material has multiple functions, is rich in multiple nutritional ingredients required by crops, such as N, P, K and organic matters, and also has an excellent slow-release effect. The composite material has the capability of improving the acid black soil in the cold region. The method is easy for industrial production and is environment-friendly. Meanwhile, the method can also be used for reducing and recycling the waste livestock bones, and the preparation cost is reduced.