151results about How to "Improve acidification" patented technology

Sandstone formations of oil and gas and geothermal wells are effectively stimulated when a buffered HF-sandstone acidizing solution is employed without the prior introduction of an acid containing preflush solution. By not using a preflush solution, buffered HF-sandstone acidizing solutions are highly effective in dissolving and removing siliceous material while minimizing the formation of calcium fluoride.

The invention relates to the field of soil fertilizer and provides a biological organic repairing agent for soil pollution and its application and preparation method. The biological organic repairing agent of the invention is composed of, by weight, 1.5-3 parts of eymogenic bacterium, 1-1.5 parts of wheat bran, 1.5-2 parts of molasses meal, 45-50 parts of ammonium humate, 45-50 parts of hydrolase dregs, 150-200 parts of soybean meal, 100-150 parts of humic acid powder, 80-100 parts of zeolite powder, 25-40 parts of a calcium magnesium phosphate fertilizer, 150-200 parts of cattle and sheep manure, 150-204 parts of plant straw, 25-40 parts of potassium humate, 1.5-3 parts of bacillus mucilaginosus, 1-1.5 parts of Gliocladium roseum, 1.5-2 parts of Streptomycesvinaceus-drappus, 1-1.5 parts of trichoderma spp, 1-1.5 parts of Paecilomyces lilacinus, 1-1.5 parts of bacillus subtilis and 1-1.5 parts of micrococcus. According to the invention, soil pollution control, improvement and nutrition are integrated.

An improved acidization method is provided in which an aqueous solution comprising one or more esters or polyesters of lactic acid or of glycerol is placed in a well where the esters or polyesters undergo hydrolysis. The hydrolysis of the esters or polyesters occurs at a slower reaction rate than that of several other known acidization esters, such as diethyleneglycol diformate, at temperatures higher than 60° C. or even higher than 100° C. Thus, the solution may be distributed substantially throughout a region in the well where acidization is required before hydrolysis is completed, despite being exposed to relatively high temperatures. The hydrolysis may result in the slow release of an acid that is capable of consuming all or most of an undesirable substance in the well, e.g., a filter cake.

The invention relates to a soil conditioner and preparation and application methods thereof. The soil conditioner is prepared from the following ingredients in percentage by weight: 30% to 35% of overrotten organic fertilizer, 35% to 40% of fruit tree branch charcoal, 14.5% to 19.5% of oyster shell powder, 8% of pyroligneous liquor, 6.0% of natural humus acid, and 1.5% of titanium oxide. The conditioner has effects of loosening soil, improving soil acidification and removing soil hardening, and has effects of improving water and nutrient retention capacity of soil, supplementing trace elements in soil calcium and magnesium and reducing crop diseases and pests. The soil conditioner can replace slaked lime, an organic fertilizer and the like as the soil conditioner to be applied to the planting industry.

Belonging to the technical field of acidified soil treatment and remediation, the invention provides a nutritional type tobacco field soil acidification modifier formula and a use method thereof. The nutritional type tobacco field soil acidification modifier formula is formed by mixing of dolomite powder, quicklime, biological black charcoal and silicon-calcium powder in proportion. The use method consists of: firstly before ridging of tobacco field farmland, employing 5-point mixing sampling, then analyzing the acid-base property of soil, if the acidification degree is high and improvement is needed, spreading the nutritional type soil acidification modifier on the tobacco field surface before farming and ridging of the tobacco field, and then ploughing the mixture evenly, with the specific dosage and continuous usage time being determined by the soil acidification severity. According to the nutritional type tobacco field soil acidification modifier formula and the use method provided by the invention, the design and formula are reasonable, the use method is appropriate, the tobacco field soil acidification status can be improved significantly, and the tobacco development and disease resistance can be promoted, and the yield and quality of cured tobacco are improved. In addition, the formula and the method also have good effects in improving the stress resistance and yield of afterculture paddy rice.

The invention relates to the food industry, particularly to the dairy industry, and can be used for putting into use some new food technologies and producing a large number of new food products noted for improved properties. The invention is directed to raising the physiological activity of food products, particularly of fermented milk products and to improving other properties thereof. In accordance with the invention, the proposed process for producing a product (variants) comprises: (1) combining a food base or at least one of its components with at least one physiologically acceptable carrier and/or with at least one its starting component, precursor; (2) combining the food base or at least one of its components with at least one microorganism or other biological system; (3) forming at least one "carrier-biocatalyst" system; (4) participation of at least part of the microorganisms and/or other biological systems of an immobilized biocatalyst in obtaining the final product due to metabolic processes, for example, due to microbial synthesis and/or transformation of the food base (substrate); (5) providing the presence of at least one formed immobilized biocatalyst in the composition of the product. The invention discloses also products obtained in accordance with the claimed process, that are called "biocatalyzed products", as well as starters for obtaining such products.

The invention discloses a gas-containing-coal multistage permeability increasing method. The gas-containing-coal multistage permeability increasing method includes the steps that firstly, the geological conditions of a coal seam hosting region, the coal metamorphism degree, the coal class and gas parameters are determined; secondly, according to whether a coal seam is located at a fault portion or a fold portion, different schemes are adopted to achieve first-stage permeability increasing of gas containing coal and detect the permeability increasing effect, and if a preset effect is achieved, permeability increasing of the whole coal seam is carried out with the first-stage permeability increasing scheme; thirdly, if the preset effect is not achieved, on the basis of the first-stage permeability increasing, second-stage acidification permeability increasing is carried out on the gas containing coal; finally, after the second-stage acidification permeability increasing is completed, gas extraction is carried out on the gas containing coal. According to the gas-containing-coal multistage permeability increasing method, different permeability increasing schemes are formulated according to the geology of different coal-seam hosting regions, and high pertinence is achieved; meanwhile, after multistage permeability increasing is adopted, the gas permeability of the coal seam is greatly improved, and the gas extraction rate is increased.

The invention relates to a functional fertilizer for regulating a micro-ecological environment of soil. 50-80% of nanometer dolomite dust, 5%-15% of sugar alcohol, 5%-15% of potassium metasilicate, 5-10% of charcoal and 5%-10% of biochemical potassium fulvic acid are utilized to prepare the functional fertilizer according to the following steps: A) preparing raw materials; B) preparing nanometer dolomite dust; C) preparing a sugar alcohol water solution; D) chelating nutrients; E) pelleting for the first time; F) pelleting for the second time; G) drying. The functional fertilizer can be used for improving soil hardening, regulating soil PH and regulating soil acidification; the functional fertilizer can be used for supplementing organic matters and various medium trace elements for the soil, regulating the saturability of soil base, cation exchange capacity and nutrient balance, reducing aluminum and manganese toxicity damage and improving soil salinization; the functional fertilizer can be used for absorbing passivated heavy metal and repairing soil heavy metal pollution; the functional fertilizer also is capable of creating an excellent living environment for soil beneficial microorganisms, boosting the growth and reproduction of the microorganisms and recovering the excellent micro-ecological environment of soil.

The invention discloses a heavy metal bioremediation agent containing alga oligosaccharides and a preparing method of the agent, and relates to the technical field of heavy metal bioremediation application. The heavy metal bioremediation agent containing the alga oligosaccharides comprises, by mass percentage, 5% to 15% of the alga oligosaccharides, 10% to 20% of bacillus subtilis fermented liquid and 65% to 85% of paecilomyces lilacinus solid leavening, wherein the effective viable count is larger than or equal to 2 hundred million CFU/g. The preparation method comprises the steps that the bacillus subtilis fermented liquid is prepared; the paecilomyces lilacinus solid leavening is prepared; and the alga oligosaccharides, the bacillus subtilis fermented liquid obtained in the first step and the paecilomyces lilacinus solid leavening obtained in the second step are mixed, and the heavy metal bioremediation agent containing the alga oligosaccharides is obtained. Bacillus subtilis and paecilomyces lilacinus have the higher tolerance on multiple kinds of heavy metal and can directly adsorb heavy metal ions, and the bacillus subtilis and the paecilomyces lilacinus do combined action with the alga oligosaccharides so as to be capable of passivating the heavy metal in the soil. Preparation is simple, the repairing effect on the heavy metal in the soil is good, and safety and environmental protection are achieved.

The invention discloses ferment liquid-state fertilizer. The ferment liquid-state fertilizer is prepared from the following components, in parts by weight: 60-120 parts of apple peel, 60-120 parts ofbanana peel, 60-120 parts of watermelon peel, 50-100 parts of citrus pomace, 50-100 parts of guava leaf, 80-120 parts of plant ash, 25-35 parts of cane sugar, 10-15 parts of medium element, 3-5 partsof microelement, 8-10 parts of polyvinyl alcohol, 8-10 parts of shell powder, 6-8 parts of pectin compound enzyme, 6-8 parts of enzyme microorganism and 3-5 parts of EM (effective microorganism) flora. The ferment liquid-state fertilizer can improve the soil environment, promotes soil microbial metabolism to be vigorous, adsorbs and degrades the soil elements, enhances crops to grow healthily andvigorously, improves the quality and yield of the crops, avoids using of chemical pesticides, and has the advantages of being environmentally friendly, healthy and low-cost planting.

The invention discloses a method for adopting an eluting solution to restore sewage irrigation area soil heavy metal. The eluting solution is composed of nitrilotriacetic acid which is a chelating agent and sodium dodecyl sulfate which is a surfactant, and mole ratio of nitrilotriacetic acid and sodium dodecyl sulfate is 5-15mmol kg-1:1mmol kg-1. On the basis of an optimal experiment, restored soil is eluted by using simulated acid rain, the objective of eluting restoration of lawn planting system sewage irrigation area soil heavy metal pollution is achieved, and the sewage irrigation area soil heavy metal after reaching the standard can continue to be applied to agricultural production.

The invention discloses a fast acidified soil ecological restoration agent for preventing and controlling successive cropping obstacles of melons and a restoration method, the fast acidified soil ecological restoration agent includes the following components by mass: 80-90 parts of silkworm excrement, 10-20 parts of bone meal and 0.1-0.3 part of a yeast agent, the yeast agent comprises Saccharomycopsis fibuligera. The ecological restoration method comprises the following steps: cleaning, spreading materials, preparing lands, ditching, irrigating, coating the surface of the soil layer with a film, keeping close at above 20 DEG for 10-15d, uncovering the film, turning the soil over for planting of the melons. The fast acidified soil ecological restoration agent aiming at the defects of prevention and control technologies in the prior art, from a technical point of view of ecological restoration of soil, soil acidification can be improved in a short period of time, salinization can be reduced, pathogenic microbes in the soil can be effectively killed, controlling successive cropping obstacles of the melons can be eliminated, the normal production of the melons can be ensured.

A method for treating city garbage includes such steps as classifying the garbage into the garbage A able to be biologically decomposed and the combustible garbage B, loading the garbage A in marsh gas pool to generate marsh gas, using the marsh gas to burn the garbage B in incinerator and installing the duster in the chimney of incinerator to remove the dust from fume.

The invention belongs to the technical field of a fertilizer. The invention discloses a biochar-based selenium-rich fertilizer used for camellia sinensis. The fertilizer comprises 40-50 wt% of selenium-rich biochar, 30-40 wt% of a selenium-rich food waste fermented fertilizer, and 3-8 wt% of super-absorbent polymer, with the balance being quartz sand. The selenium element exists in an organic selenium manner, so that in production, processing and application processes, the selenium element is minimum harmful to related persons. The problem that after a selenium-rich fertilizer in the prior artis applied, the selenium content in soil is uneven, crops, such as camellia sinensis, have absorption obstacles, and the utilization rate is not high is overcome. The selenium-rich fertilizer is noteasy to be dissolved in water, and doesn't lose efficacy after being flushed with rain/irrigation water. The selenium-rich fertilizer can improve soil acidification, optimizes soil structure, improvessoil quality, and has the function of clearing, mitigating, and passivating heavy metal in soil.

The invention discloses a method for lowering heavy-metal superstandard risk of soil of perennial continuous cropping facilities. Through applying a heavy-metal passivator and combining the methods ofsoil deep-plowing, moisture regulation and control, catch crop planting and the like, the total amount and availability of heavy metals such as Cd and Cu in topsoil of a facility vegetable plot can be obviously lowered, meanwhile, the air and water permeability of the soil is improved, the phenomena such as secondary salinization and acidification of the soil are improved, and thus, the safe production of facility vegetables is guaranteed. The method is suitable for being applied to the soil of the perennial continuous cropping facilities.

The invention relates to a fast growing turf-based controlled/slow-release ecological fertilizer as well as a preparation method and application thereof. The ecological fertilizer contains active components or other beneficial components, wherein the active components include a slow-release fertilizer component, a quick-acting fertilizer component and a cytokinin production bacterial agent. The mass content of total nutrients (N+P2O5+K2O) in the ecological fertilizer is more than or equal to 30%; carrier carbon used in a slow-release fertilizer is fast growing turf; the cytokinin production bacterial agent contains florae of bacillus megatherium, bacillus subtilis, bacillus mucilaginosus and trichoderma. The fast growing turf-based controlled/slow-release ecological fertilizer has the beneficial effects that the quality of the adopted fast growing turf is superior to that of charcoal prepared from traditional agricultural waste: the charcoal yield is high, and the preparation cost of charcoal can be lowered; the prepared fertilizer for paddy fields is beneficial to the sedimentation of charcoal base; the adsorption capacity to nutrient elements is enhanced; and the soil acidification caused by the overusing of a chemical fertilizer can be improved, and meanwhile, the bio-availability can be reduced by passivating heavy metal ions in soil through strong basicity.

A disclosed organic-inorganic compound fertilizer special for carya cathayensis comprises an organic fertilizer and an inorganic fertilizer; in the organic-inorganic compound fertilizer, the organic matter content is 20-25%, and the ratio of N element weight, P element weight in terms of P2O5 and K element weight in terms of K2O is 12-15:3-4:10-12; and the pH value of the organic-inorganic compound fertilizer is 6.5-8. The organic-inorganic compound fertilizer with appropriate usage amount is employed for normally-grown mature carya cathayensis. The compound fertilizer is added with a decomposed organic fertilizer prepared by taking pig manure as a raw material and plant ash prepared by taking rice chaff as a raw material through combustion, and also is added with a trace element fertilizer with a proper ratio, so that the organic-inorganic compound fertilizer is capable of substantially improving the yield of carya cathayensis, and also is capable of improving the acidifying statue of soil.

The invention discloses a nutritional supplement for sows. The nutritional supplement comprises, by weight, 5-20 parts of calcium gluconate, 5-20 parts of calcium lactate, 0.01-1 part of zinc lactate, 5-20 parts of glucose, 5-20 parts of maltose, 5-20 parts of saccharose, 0.2-2 parts of feed acidifiers and 0.03-1.6 parts of scent attractants. The nutritional supplement does not occupy the abdominal volume and convenient to feed, the sows like to eat the nutritional supplement, and the functions of supplementing nutrients, improving the stamina, improving the appetite, helping digestion, preventing constipation, promoting normal peristalsis and constriction of uteri and birth canals, helping eutocia, shortening the birth process and reducing the probability of birth canal injuries are achieved by applying the nutritional supplement before delivery; and by applying the nutritional supplement after delivery, the sows can start eating early, the stamina is good, the milk amount is large, recovery is fast, growing and weight increment of all piglets are facilitated, and arrival of the normal oestrus of the next farrow is facilitated.

The invention relates to an acidified soil conditioner, which contains the following raw materials in parts by mass: 30-60 parts of shell powder, 12-20 parts of carboxymethyl cellulose, 8-15 parts of polymethyl methacrylate, 5-20 parts of calcium cyanamide, and 10-25 parts of nanosilicon dioxide solution. The shell powder is used as a soil structure conditioner, a certain amount of chemical components are added to regulate the pH value of the soil system and kill harmful bacteria in soil and maintain effective microbial community, so that the improvement of the soil structure, microbial environment and pH value can be achieved; in addition, the acidified soil conditioner can also provide essential calcium element and silicon element for soil, and can be effective for a long term after being applied once. The acidified soil conditioner not only achieves the acidified soil conditioning function, but also can improve the soil activity, increase trace elements, inhibit pathogenic bacteria of crops and improve the pH value of the acidified soil to achieve the effects of improving the soil microenvironment and improving the self restoration capability of soil, so that the yield and quality of crops can be remarkably improved.