57results about How to "Address acidification" patented technology

The invention relates to a method for producing an acid soil modifier by using agricultural waste. The method comprises: crushing agricultural waste, and heating one part of the crushed agricultural waste in the absence of air to obtain biomass carbon powder; and mixing the biomass carbon powder, the other part of the crushed material, and limestone powder, and uniformly stirring to obtain the finished product. With application of 50-500 kg of the soil modifier on per mu of soil, soil acidity can be effectively reduced, physical and chemical properties of soil can be improved, and economic values of crops can be increased. In addition, the acid soil modifier has characteristics of wide raw material source, low product cost, simple production process, no toxicity and no harm, is a green soil modifier, and has good ecological and social benefits.

The invention relates to a method for remedying acidified arsenic contaminated soil by biochar-loaded nano-scale zero-valent iron cooperated with bacteria. The method includes selecting Pseudomonas putida strain MnB1 (ATCC23483); carrying out enrichment culture on the Pseudomonas putida strain in enrichment culture media; inoculating strains in culture media with divalent manganese and carrying out culture on the strains to obtain active metabolites; adding the active metabolites and the green synthetic biochar-loaded nano-scale zero-valent iron into the acidified arsenic contaminated soil anduniformly stirring the active metabolites, the biochar-loaded nano-scale zero-valent iron and the acidified arsenic contaminated soil; carrying out a series of physical-chemical reaction on active manganese oxide, zero-valent iron, biochar and trivalent arsenic or pentavalent arsenic in the soil; converting the arsenic in exchangeable forms into arsenic in residual forms. The method has the advantages that the arsenic in the soil can be effectively immobilized, the pH (potential of hydrogen) of the soil can be increased, and the double purposes of remedying soil acidification and arsenic contamination can be simultaneously achieved; the method is short in remediation time, high in efficiency, wide in treatment range and free of secondary pollution, and stable effects can be realized.

The invention belongs to the field of soil conditioning methods, in particular to a prescription and preparation method of an acidified soil conditioner. The method comprises the following steps of: proportionally stirring and mixing vegetable oil waste, such as waste activated clay, soybean meal and the like, with a potassium hydroxide solution, and regulating the pH value of the materials to be 8-12; then, indirectly heating and stirring the obtained materials to obtain an organic and inorganic alkaline mixture; and finally, dewatering and drying the obtained mixture to obtain organic and inorganic mixed soil conditioner powder. By means of the acidified soil conditioner provided by the invention, the soil acidification problem and other types of acidification problems caused by using chemical fertilizers in old orchards and old vegetable gardens for years are effectively solved, and the situations of resource waste and environment pollution due to the landfill of the waste activated clay are avoided.

The invention relates to a weak alkaline solid water soluble fertilizer for improving acid soil and a preparation method thereof. The weak alkaline solid water soluble fertilizer is prepared from the following raw materials according to mass percent: 5 to 15% of mineral resource fulvic acid, 5 to 20% of biochemical fulvic acid, 2 to 6% of compound amino acid, 5 to 15% of sodium metasilicate, 40 to 60% of nitrogen containing alkaline fertilizer, 8 to 10% of monopotassium phosphate, 0.05 to 0.1% of zinc, 0.01 to 0.03% of copper, 0.05 to 0.1% of boron, 0.005 to 0.03% of molybdenum and 0.1 to 1.0% of fungicides. The invention further provides a preparation method of the solid water soluble fertilizer. The fertilizer integrally shows alkalinity or physiological alkalinity, iron and manganese elements which are toxic to crops in an acid soil environment are avoided during trace elements selection, various nutrients such as organic matter, inorganic salt, beneficial bacteria and the like are supplied, and additionally, alkaline factors are released, so that the fertilizer is suitable for facility vegetable soil with severe acidification.

The invention relates to a technology for processing indissolvable and nondegradable organic waste gas by integrated composite organisms, and the technology is applicable to the purification of low-density, indissolvable and nondegradable organic waste gas. A high-density low-speed air suction way and a domestication way of low flow-rate circuiting liquid are adopted; and during the domestication process, a fungus-bacteria composite organism system with pseudomonas as a dominant bacterium is constructed by use of a pH changing way. A composite organism tower combines two microorganisms of fungus and bacteria, and the diversity of microorganisms can be effectively applicable to the requirements of various indissolvable and nondegradable organics on different bacteria; system resistance is reduced by the introduction of a fungus system; water film resistance is reduced effectively and the mass transfer process of the organic waste gas is accelerated by means of low circuiting flow-rate; an integrated type technological structure is adopted to the fungus and the bacteria, so the processing technology is simplified and the investment cost and operating cost are reduced. The system is high in efficiency of removing the indissolvable and nondegradable organic waste gas and load, and has an extensive applicability.

The invention relates to composite probiotic for crops and trees planting. The probiotic can be applicable to soil conditioning, microorganism bacterial manure preparation, irrigation, foliage spray, ground spray, air atomizing disinfection and the like, thus improving crops and trees yield, quality and disease resistance.

The invention discloses post-acidification resistant fermented yogurt and a preparation method thereof, belongs to the technical field of microbial fermentation, and solves the problem of yogurt fermentation post acidification. The post-acidification resistant fermented yogurt is prepared by the following preparation method: activating Lactobacillusrhamnosus for 3-4 times to get an activated strain, then inoculating the activated strain to fresh milk added with monosaccharide and a stabilizer for constant temperature fermentation to obtain fermented yogurt, namely the post-acidification resistant fermented yogurt; wherein taking 100g of the fresh milk as a reference, 0.8-1g of the monosaccharide is added, 0.18-0.24g of the stabilizer is added, and the Lactobacillusrhamnosus volume is 2-3% of the fresh milk volume. The post-acidification resistant fermented yogurt solves the problem of yogurt fermentation post acidification, and is good in taste and long in shelf life.

The invention relates to a compound microbial fermented soil conditioner including the following raw materials in parts by weight: 290-315 parts of urea, 290-315 parts of a nitrogen and potassium compound fertilizer, 235-260 parts of ammonium dihydrogen phosphate, 40-60 parts of potassium pyrophosphate, 1-3 parts of chelated iron, 3-5 parts of chelated zinc, 80-100 parts of a fermented product oflignite or weathered coal and a microbial agent, and 900-1100 parts of an anticaking agent. The compound microbial fermented soil conditioner provided by the invention comprises humic acid rich in mineral sources, solves the problems of soil hardening, acidification, salinization and the like, also has a good role in promoting plant root systems, and greatly improves other corresponding agronomictraits. The microbial agent has the abilities of nitrogen fixation, phosphorus removal, potassium removal, plant hormone production or antibiotic secretion, promotes the material circulation and nutrient supply in soil, and improves the soil fertility and the fertilizer utilization rate.

The invention relates to compound probiotics for planting kiwi fruits. The compound probiotics can be applied to soil remediation, bacterial manure fabrication, irrigation, foliar application, spraying on the ground, air atomizing sterilization and the like. Thus, the yield, the quality and the disease resistance of the kiwi fruits are improved.

The invention discloses cupriavidus, a cupriavidus preparation, and application of the cupriavidus preparation in heavy metal contaminated soil remediation. The cupriavidus sp. is resistant to heavy metal ions, and capable of adsorbing the heavy metal ions, increasing pH of the soil water phase micro-environment and producing struvite with a nitrogen and phosphorus slow controlled-release fertilizer function; when the cupriavidus is used for heavy metal contaminated soil remediation, in particular to cadmium contaminated soil remediation, cadmium ions in soil can be fixed through adsorption and deposition, the bioavailability of soil cadmium is reduced, the soil fertility can be improved, and the technical problems such as soil acidification are solved.

The invention relates to compound probiotics for strawberry planting. The probiotics can be applied through soil treatment, manufacturing of bacterial manure, irrigation, foliage spray, ground spray and air atomization and bacteria removal. The yield, quality and disease resistance of strawberries are improved.

The invention relates to compound probiotics for cherry planting. The probiotics can be applied through soil management, microbial bacterial fertilizer, irrigation, foliage spray, ground spray, air atomization disinfection and the like. The output, quality and disease resistance of cherries are improved.

The invention discloses a soil conditioner. The conditioner comprises ammonium bicarbonate, oyster shell power, potash feldspar ore powder, 3,4-dimethylpyrazole phosphate, ammonium humate, chitin and other conditioning components. The acidity can be reduced, the pH value is improved, the utilization rate of nitrogen fertilizers can be fundamentally improved, the nitrate accumulation is reduced, the heavy metals can be immobilized, harmful pathogenic bacteria are inhibited, and calcium, silicon and other beneficial elements are provided for soil microbes and crops.

The invention discloses a device for improving the yield of methane produced from kitchen waste through anaerobic digestion and a method for producing the methane, relates to the technical field of treatment on kitchen waste, and belongs to the technical field of solid waste recycling. A stirring paddle connected with a transmission shaft of an engine is arranged inside a fully-mixing reaction chamber, the outlet end of an alkaline liquor box is connected with one end of an alkaline liquor pipe, the other end of the alkaline liquor pipe is positioned at the upper end face of the fully-mixing chamber, a U-shaped pipe is serially connected onto the alkaline liquor pipe, an electromagnetic valve is arranged on the alkaline liquor pipe between the U-shaped pipe and the alkaline liquor box, a pH electrode probe and the electromagnetic valve are respectively connected with a signal processing and controlling device through a wire, a first sampling pipe, a second sampling pipe and an alkaline liquor discharging pipe are respectively arranged on the side wall of the fully-mixing reaction chamber, a water bath chamber is arranged at the periphery of the fully-mixing reaction chamber, and a recirculated water inlet pipe and a recirculated water outlet pipe are respectively arranged on the side wall of the water bath chamber. Through the device, the purposes of being simple in process and structure, high in automation degree and easy to operate, and capable of increasing the yield of the methane are achieved.

The invention discloses a soil conditioner for continuous cropping of strawberries and an application thereof. The soil conditioner comprises the following components in parts by mass: 15-25 parts of peat, 8-15 parts of decomposed manure, 10-15 parts of leguminous plant root, stem, leaf and shell wastes, 10-14 parts of quicklime, 15-20 parts of montmorillonite, 5-10 parts of sodium bicarbonate, 4-6 parts of sodium citrate, 5-10 parts of domestic fungus dregs, 5-8 parts of a traditional Chinese medicine extract product, 3-6 parts of vinasse, 10-20 parts of microbial fermentation broth, 5-12 parts of a soil disinfectant, and 10-30 parts of an organic fertilizer. The product can be reasonably applied to improvement of continuous cropping soil of strawberries, and can effectively solve continuous cropping problems of salination, acidifying, deletion and unbalance of nutrition as well as insect diseases, and the like existed in continuous cropping soil; after the soil conditioner is used for conditioning the soil which is used for plantation of strawberries, plant death rate is reduced, yield is increased, generation probability of insect diseases is reduced, and the big problem of sustainable plantation of strawberries is solved with significant meaning.

The invention relates to a restoration method for an ion type rare earth ore non-ammonium system ore leaching site. The restoration method comprises the following steps: leaching ion type rare earth ore by adopting a leaching agent containing magnesium sulfate; carrying out primary leaching on obtained rare earth tailings by adopting clear water; carrying out secondary leaching on the obtained rare earth tailings subjected to primary leaching by adopting a calcium-containing alkaline aqueous solution or slurry; and returning leacheate obtained by leaching twice to the next ion type rare earth ore for ore leaching. According to the restoration method, the rare earth tailings are subjected to primary leaching with clear water and secondary leaching with the calcium-containing alkaline aqueous solution or slurry, so that the content of calcium and magnesium nutrient elements in an ore leaching site can be quickly controlled and adjusted, part of the rare earth tailings is solidified in situ, the requirement for the nutrient ratio of soil is met, the problem of acidification of tailings soil is solved, the used leaching water amount is small, the leaching period is short, the process is simple, the cost is low, and a solid technical guarantee can be provided for eco-friendliness in the mining process of the ion type rare earth ore.

The invention belongs to the technical field of an organic fertilizer, and particularly relates to an organic fertilizer suitable for acidic soil, and a preparation method thereof. The organic fertilizer comprises the following raw materials in percentage by weight: 15 to 30 percent of silicon humate, 20 to 30 percent of biological carbon black, 20 to 30 percent of water-quenched slag, 20 to 30 percent of an organic fertilizer, 2 to 5 percent of an amino acid micro-element fertilizer and 0.1 to 0.5 percent of BMC composite biological bacteria. The organic fertilizer provided by the invention not only can improve the acidic soil environment, but also can improve the fertilizer effect and the activity of soil.

The invention relates to a method for restoring an ionic rare earth ore ammonium salt leaching site, which comprises the steps of carrying out primary leaching by using a calcium and/or magnesium-containing salt solution and carrying out secondary leaching by using a calcium-containing alkaline aqueous solution or slurry, so that reinforced leaching of residual ammonium salt in the ammonium salt ore leaching site, controllable adjustment of the pH value, in-situ chemical curing of sulfate radicals and rapid regulation and control of the content of calcium and magnesium nutrient elements can be achieved, the used leaching water amount is small, the leaching period is short, the leaching effect is good, the technology is simple, the cost is low, and a solid technical guarantee can be provided for ion type rare earth ore ammonium salt leaching site restoration and eco-friendliness.

The invention relates to a method for producing alkaline water-soluble fertilizers by utilizing vegetable wastes. The method comprises the following steps: (1) adding the vegetable wastes into a fermentation tank, carrying out anaerobic fermentation, and filtering to obtain a fermentation base solution; (2) adding a seed solution, calcium carbonate and a defoaming agent into the fermentation basesolution, fermenting, filtering, and sterilizing at high temperature; (3) adding an acidifying agent into the fermentation filtrate, adding potassium phosphate in batches, and monitoring the pH valueof the solution; (4) adding a mixed material consisting of medium trace elements, organic matters and the like, stirring and dissolving; (5) adding acid and alkali to adjust the pH value to a proper pH value; and (6) adding a microbial inoculum, dissolving and uniformly mixing, and customizing alkaline water-soluble fertilizers with different pH values. The method can improve the utilization rateof the vegetable wastes, and the prepared product can realize cyclic planting of crops and improve and fertilize soil.

The invention relates to the technical field of agricultural production fertilizers, especially to a special water-soluble fertilizer for Brassica campestris, and a preparation method thereof, whereinthe raw materials comprise, by weight, 70-74 parts of ammonium sulfate, 15-17 parts of potassium chloride, 8-12 parts of urea, 4-6 parts of monoammonium phosphate, 14-17 parts of potassium fulvate, 3-7 parts of magnesium sulfate, 1-2 parts of a trace element amino acid chelate, 1-3 parts of a seaweed extract, 0.5-0.9 part of compound microorganisms, 0.2-0.6 part of gamma-polyglutamic acid and 0.2-0.6 part of borax. According to the invention, the special water-soluble fertilizer used for Brassica campestris and obtained through pre-mixing and raw material crushing has the reasonable ratio ofnitrogen to phosphorus to potassium to medium and trace nutrient elements according to the growth fertilizer requirement rule of Brassica campestris, can meet the nutrient requirements of Brassica campestris in the whole growth period, and can improve the soil fertility, improve the soil structure and solve the problems of soil acidification and hardening.

The invention discloses a preparation method and an application of a soil conditioner for continuous cropping of the watermelon. The soil condition is prepared from 20%-40% of modified peat soil, 20%-30% of modified bentonite, 5%-8% of quick lime, 5%-20% of dipotassium phosphate, 5%-15% of leguminous plant waste, 1%-3% of a soil disinfector and the balance of organic fertilizer as raw materials. With the reasonable application of the soil conditioner to improvement of continuous cropping soil of the watermelon, the continuous cropping problems of salinization, acidification, nutrition deficiency and imbalance, pest and disease damage and the like of soil are effectively solved; when the soil improved by the soil conditioner is used for watermelon planting, the plant death rate is reduced,the yield is increased, the probability of occurrence of the pest and disease damage is reduced, and the big problem in sustainable planting of the watermelon is solved.

The invention discloses an acid soil modifier. The acid soil modifier is characterized in that the acid soil modifier is prepared from the following components in percentage by weight: (1) 45%-65% ofcoastal saline-alkali earth surface polysaline soil, the coastal saline-alkali earth surface polysaline soil is surface soil from the coastal saline-alkali earth surface to the depth of 5 cm, with thesalt content being 3%-50%, and pH value being 7.5-8.5; (2) 20%-30% of halophyte plant-charcoal, the halophyte plant-charcoal is a product of cracking halophyte after air drying at 300-700 DEG C; and(3) 15%-25% of conch powder. According to the acid soil modifier, the problem of soil acidification is combined with coastal saline-alkali land improvement and treatment and utilization of halophyte resources, through stripping of the coastal saline-alkali earth surface polysaline soil, the total salt content of surface soil of a coastal saline-alkali area can be effectively reduced, the lack of nutrient elements in acid soil can be supplemented by rich calcium, sodium, potassium and other elements in the coastal saline-alkali earth surface polysaline soil, common shells in a coastal area areused as raw materials, and limestone resource consumption in acid soil improvement is saved.