777results about How to "Reduce leaching" patented technology

A method for treating wood, characterized by impregnating wood with a metal-containing treating agent containing lignin and/or lignin derivatives and a metal, a metal compound, and/or a metal ion and oxidizing and/or macromolecularizing of the lignin and/or lignin derivatives in the wood to fix the metal component in the wood, and wood and woody materials obtained by the treating method. According to the method of the present invention, while effectively utilizing lignins, lignosulfonic acids, or lignosulfonic acid salts, leaching of the metal component can be suppressed to a low level to thereby retain the effects due to the incorporation of the metal components for a prolonged period.

A full nutrition fertilizer of biology type and its producing method belongs to organic complex fertilizer field in biology type. The components of the full nutrition fertilizer is 20-50% of organic waste liquid, 10-30% of urea, 8-15% of diammomium phosphate, 10-25% of potassium sulfate, 5-20% of medium trace element, 1-5% of microbial inoculum, 0-0.2% of root-promoting agent; 0-2% of solutizer, effective viable count content of the microbial inoculum of more than 1010/g. The fertilizer is produced by adding the urea, diammomium phosphate, potassium sulfate, medium trace element, root-promoting agent, solutizer into organic waste liquid and blending uniformly, then adding microbial inoculum. The invention uses the wastes to produce fertilizer with a low cost a high availability and a good prospect in the fertilizer industry. The fertilizer can be widely applied to the vegetables, melon and fruits, food, tobacco, forests and different commercial crops.

The invention provides a biomass charcoal-based organic fertilizer and a preparation method thereof. The biomass charcoal-based organic fertilizer comprises, by weight, 30 to 60 parts of biomass charcoal, 10 to 30 parts of mould-free chicken manure, 5 to 10 parts of bone meal, 6 to 11 parts of bentonite, 2 to 5 parts of refined wood vinegar liquid, 2 to 4 parts of a trace element additive and 0.5 to 1 part of a beneficial bacterial agent. Usage of the biomass charcoal-based organic fertilizer is beneficial for improving water-retention and fertility-retention capability of conventional soil, effectively enhancing soil fertility and purifying the growing environment of crops.

The invention relates to saline-alkali soil paddy rice special-purpose carbon-based organic fertilizer. The saline-alkali soil paddy rice special-purpose carbon-based organic fertilizer has a low cost and high fertilizer efficiency, is economic and environmentally friendly, improves a soil water binding capacity and permeability, and has functions of keeping fertility, slowly releasing fertilizer and reducing paddy rice salinization. The saline-alkali soil paddy rice special-purpose carbon-based organic fertilizer comprises biomass charcoal, chicken manure, pyroligneous liquor, fermented soybean meal and potassium humate. The biomass charcoal is prepared by thermal cracking charring of biomass raw materials under anoxic conditions. The saline-alkali soil paddy rice special-purpose carbon-based organic fertilizer can be used for paddy rice plantation, can improve a saline-alkali soil environment and can improve an organic paddy rice yield.

The invention discloses a controlled-salinity cultivation method for plating crop on moderate and medium and severe saline-alkali soil, comprising: before sowing, irrigating saline-alkali soil for pressing salt and making soil moisture with fresh water; applying base fertilizer based on the principal of organic fertilizer into the saline-alkali soil; meanwhile, applying compound fertilizer suitable for the saline-alkali soil as the assistant material; then, ploughing soil, and raking with a leveller to preserve soil moisture; furrowing and making a ridge; covering films and sowing on the high position of the ridge; carrying out close planting; and spraying growth regulator. The cultivation method has the advantages of strong adaptability and high crop output, can be used for improving the utilization ratio of the fertilizer, quickeing the soil fertility cultivation process and bringomg high agricultural use benefits.

A wood preservative composition comprising micronized particles of organic biocide is provided. The composition comprises a dispersion comprising particles in the range of 0.001 to 25 microns. Also provided is a method for the application of the preservative composition to wood. In addition, wood products which have been treated with the preservative composition are also provided.

The invention discloses a clay-based heavy metal thermal curing agent and its method for curing heavy metal. The clay-based heavy metal thermal curing agent comprises, by weight, 40-60% of clay, 5-15% of iron oxide, 20-30% of fly ash and 15-25% of stone flour. The method provided by the invention comprises the following steps of: uniformly mixing the clay-based heavy metal thermal curing agent and a heavy metal pollutant according to the mass ratio of 1: 5-10: 1, carrying out extrusion moulding on the mixed sample at the pressure of 300-1000Mpa, and sintering the molded sample at the temperature of more than 800 DEG C for 2-5 h to obtain a recycled material. According to the invention, heavy metal is coalesced by absorption of clay to heavy metal; fly ash and stone flour are used to fully mix heavy metal with the clay-based heavy metal thermal curing agent during the mixing process; iron oxide and alumina components in the clay-based heavy metal thermal curing agent react with heavy metal at the temperature of more than 800 DEG C for high-temperature fusion glass transition so as to form a spinel structure; and heavy metal in the form of spinel and feldspar crystal structural components is fixed in the heavy metal thermal curing agent to form the recycled material.

The invention relates to the field of agricultural chemistry, in particular relates to a carbon-based controlled-release fertilizer special for potato and a preparation method thereof. The environment-friendly efficient carbon-based controlled-release fertilizer special for the potato is a long-acting granular-carbon-based compound fertilizer which is prepared from waste agriculture and forestry biomasses such as corn core, peanut shell, rice shell, edible fungi substrate and the like, wherein the biological granular carbon is black carbon powder granules (carbon black) which is formed by imperfect combustion of biomasses under anaerobic condition and has various features similar to those of soil humus (acid); and the biological granular carbon has strong capabilities of absorbing and retaining nutrition and moisture, can stimulate growth of crops and has good controlled-release effect on NPK, thus the prepared controlled-release fertilizer only needs to be applied once in the full growth and development period of potatoes, has the characteristics of increasing soil fertility, improving soil structure and the like, is efficient and environment-friendly, and has a wide application prospect.

A multi-layer protective wrap system for wood or metal pilings and poles comprising multiple organic polymer layers (an inner seal wrap, an optional foam conformation layer, and an outer compression shell) secured to the pilings by a bar-and-band system provides resistance to decay, thereby extending the life of pilings/poles in both new and retrofit installations. The 2- or 3-layer wrap system not only extends the life of pilings/poles by protecting them from new infestation by organisms, but also starves existing organisms of the oxygen they require to survive. In addition, because the inventive wrap system seals the piling/poles, it prevents leaching of creosote or other protective coating materials into the environment, reducing the threat of toxicity. This permits industry current standard practice of impregnating pilings with creosote to act as a third or fourth layer inside the 2-3 layers of the inventive wrap system.

A system and method of packaging a bone allograft for use in a future medical procedure in which the bone allograft is stored in a saturated saline solution in an airtight container. The saline solution keeps the allograft hydrated and may be saturated with a combination of calcium, phosphate, or magnesium to inhibit mineral leaching out of the allograft during storage. The container may be deformable to conform to the shape of the allograft material as the container is “shrink-fitted” to the allograft. Optionally, the bone allograft may also be freeze-dried prior to placement in the container.

The present invention relates to a multiple-component material including a substrate and a film layer on the substrate. The film layer includes a color-changing composition to indicate a change in condition, such as a change in pH. The color-changing composition includes a water-insoluble, film-forming polymer, a charged surfactant, a charged colorant and a pH adjuster.

The invention discloses an efficient green micro-crystallized mineral-biological compound fertilizer and a production method thereof. The compound fertilizer comprises the following components in parts by mass: 7-9 parts of N, 7-9 parts of P2O5, 7-9 parts of K2O, 25-30 parts of organic matters, 8-12 parts of humic acid, 3-6 parts of amino acid and 15-20 parts of chemical elements such as calcium,silicon, magnesium, selenium, molybdenum, boron and zinc, as well as not less than 0.02 billion/kg of available active bacteria. The efficient green micro-crystallized mineral-biological compound fertilizer has the beneficial effects of being capable of adapting to acidic-alkaline soil and neutral soil in various regions, improving the soil, enhancing the adsorption ability of the soil on nutrients, preventing nitrogen and potassium from being washed away by water due to a large amount of rainfall, reducing formation of insoluble phosphate and improving fertility of the soil; and in addition,nitrogen, phosphorus and potassium in the original soil can be activated to be absorbed by crops by virtue of microelements contained in the fertilizer, and the supply capability of the deep soil nutrients can be enhanced, thus the physiochemical indexes and biological environment of the soil can be improved in case of long-term application, hardened soil can be reduced, and the quality of crops can be obviously improved.

A method is provided for stabilizing toxic materials in a waste matrix and in the pore water of the waste matrix. The method includes the steps of combining with the waste matrix (and pore water) an agent for controlling the oxidation-reduction potential of the matrix/water, an agent for controlling the pH of matrix/water, and an agent for adsorbing or coprecipitating the toxic material in the matrix/water.

A coating composition comprising cationic colloidal silicas and ink jet recording sheets prepared from such coatings is described. The coating comprises binder and polydispersed cationic colloidal silica. The cationic colloidal silica preferably has an average particle size in the range of about 1 to about 300 nanometers. It has been discovered that if a cationic polydispersed colloidal silica is employed in a glossy coating formulation, the coating provides a specular gloss of at least 30 at 60° C., even at a relatively high silica solids to binder solids ratio of 1:1 or greater, but also a coating having good to excellent printability characteristics.

A silicone emulsion composition for wood treatment is prepared by emulsifying and dispersing (A) an organopolysiloxane, (B) the reaction product of an amino-containing organoxysilane and an acid anhydride, (C) an epoxy-containing organoxysilane, (D) colloidal silica and/or polysilsesquioxane, and (E) a curing catalyst in water to form a silicone emulsion, and adding and mixing (F) a boron compound with the silicone emulsion.

The invention is directed to compositions comprising at least one agricultural biomass, at least one nitrogen source, at least one organic acid and at least one active agent wherein the agricultural biomass is impregnated with about 5% wt to about 45% wt of the active agent. Methods of their preparation and methods of use are also described. The composition effectively reduces the leaching of, and facilitates the metering of, loaded active agents for plant protection.

The invention relates to a bio-organic fertilizer produced by the use of municipal sludge and a production method thereof. The production method is characterized by comprising the following steps of: using municipal sludge, a quicklime powder, ferrous sulphate, magnesium sulfate, corn straw, a rapid fermentative strain inoculant for bio-organic fertilizers, a decomposing agent for organic materials, lysine, rice bran dry cake, bone meal, ammonium nitrate, monoammonium phosphate, potassium sulfate, triacontanol, compound sodium nitrophenolate, an organic activator and the like as raw materials, uniformly mixing by a twin-shaft paddle mixer, preparing a powder or particles, and packaging to prepare the municipal sludge bio-organic fertilizer product. The product has complete nutrient components, and contains nitrogen, phosphor, potassium and a plurality of trace elements as well as various nutrients such as organic acid which help the growth of crops. The production method has no pollution, requires low cost, has good benefits, and is used to solve the secondary pollution of municipal sludge, protect the environment and save lands. .

The invention discloses a nepouite with the multi-stage reverse-current acid-dipping technology, which comprises the following steps : grinding the nepouite; reacting with mixing the primary immersion liquid and water; reacting the leach residues a plurality of times endlessly; getting the K extract after finishing filtering the reaction of the k times; making the K extract liquor and the K extract react cyclically the k+1 times; regarding the k extract liquor as the extract liquor of the k-1 leaching reaction; regarding a corrosive acid as the extract liquor of the last leaching reaction; regarding the last extract liquor as a liquor containing Ni and Mg after n times reaction (k is between 1 and n and n is not less than 2). The invention reduces the cost, which recovers the Ni and Mg highly effectively.

A method using one or more of certain triazoles in an amount effective to reduce cobalt leaching during a metal working process from a metal working tool comprising cobalt, such as tungsten carbide particles bonded by cobalt, wherein the one or more triazoles comprise at least butyl-benzotriazole, and optionally one or more other benzotriazoles. Also, a composition is provided which comprises a metal working fluid and one or more of these triazoles in an amount effective to reduce cobalt leaching from metal working tools comprising cobalt, such as tungsten carbide particles bonded by cobalt.

The invention relates to a lanthanum-iron modified zeolite phosphorus removal adsorbent and a preparation method and application thereof. Natural zeolite is modified by lanthanum salt and iron salt. At first, a mixed solution of lanthanum and iron is prepared, and then zeolite is added, and that mixture is uniformly mixed, the pH of the solution is adjusted to be alkaline, and a precipitate of lanthanum and iron is formed, so that the precipitate is fully loaded on the surface of the zeolite. Aging, filtering, washing, drying and roasting are performed to obtain the adsorbent. The invention modifies the cheap natural zeolite, improves the phosphorus removal effect of the natural zeolite to a certain extent, and makes up for the defects of the natural zeolite in phosphorus removal.

A method assembling straw biochar with microbe bacteria fertilizer so as to improve saline land relates to the saline land improvement method, and aims to solve the technical problems that an existing saline land cannot plant crops or the crops output is low; the method comprises the following steps: composting and fermenting an organic fertilizer so as to obtain decomposed organic fertilizer, uniformly mixing the straw biochar, the microbe bacteria fertilizer and the decomposed organic fertilizer according to weight ratio: 1-12:1:10-20, and piling up the mixture for preparation; uniformly throwing the straw biochar, the microbe bacteria fertilizer and the decomposed organic fertilizer mixing improvement material on the soil surface 0-2 days before soil working, and appilication amount is 1350kg/mu; doing intersect rotary tillage for 1-2 times after fertilizer application, rotary tillage depth is 12-15cm, immediately suppressing the soil after rotary tillage, and then sowing is carried out. The method is simple, modifiers are straw biochar and manure, the materials are easy to get, so cost is low; the improved saline land is obvious in effect; the method is suitable for saline land improvement.