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440results about How to "Lower pH value" patented technology

Saline-sodic land reclamation and control method

The invention relates to a saline-sodic land reclamation and control method. Wide and deep research is long developed on the reclamation of saline-sodic land at home and abroad, and more focuses on engineering measures than applies biological techniques; although achievement has been made, some insurmountable difficulties still exist. The saline-sodic land reclamation and control method comprises the following steps: bulk deep loosening, applying soil deep loosening agents and saline-sodic soil improvement agents to deep loosening soil, purposefully and proportionally applying biologically organic fertilizer according to the composition of soil detected by adopting a nutrient balance method and a nitrogen phosphorus and potassium proportioning method which both comprise the following steps: subtracting soil nutrient-supplying amount from the fertilizer requirement of target yield, supplementing the balance through fertilizing, hathpace ridge forming, draining water and controlling salt, planting green manure-saline alkali tolerant high-yielding grass crop jerusalem artichoke to thoroughly improve the soil.
Owner:王彤

Magnesium oxysulfate cement board and method for preparing same by using semidry method

The invention relates to a magnesium oxysulfate cement board and a method for preparing the same by using a semidry method. The magnesium oxysulfate cement board comprises a heat insulation core layer and strength structure layers respectively compounded on the two surfaces of the heat insulation core layer. The heat insulation core layer is a layer structure formed by stirring and pressing magnesium oxysulfate which is used as a gelatinizing agent and a light material which is used as a filler. Each strength structure layer is a layer structure formed by the magnesium oxysulfate which is used as the gelatinizing agent. The magnesium oxysulfate cement board disclosed by the invention has the outstanding substantive characteristics that a plate material with a multilayer composite structure is formed by mixing the magnesium oxysulfate utilized as the gelatinizing agent with the light material and / or a reinforcing fiber; the structure of the core layer has the characteristics of light weight and good heat preservation and heat insulation effects; the strength structure layers on the two surfaces of the core layer have the characteristics of bending resistance and high compression strength; and meanwhile, the magnesium oxysulfate cement board is low in PH value and has no chlorine content. Therefore, the occurrence of the moisture absorption and the halogenation are avoided; the corrosion on materials, such as plant fibers, metal pieces and the like, is avoided; and the application range is widened and the service life is prolonged.
Owner:NG TERASUN AIR DUCT

Anti-stress anti-diarrhea growth-promotion Chinese herbal medicine feed additive for weaned pig and preparation

The invention discloses an anti-stress anti-diarrhea growth-promotion Chinese herbal medicine feed additive for a weaned pig, which is obtained by carrying out the superfine grinding and mixing on the following components at the mass ratio: 1-5 parts of Astragalus mongholicus, 1 part of Scutellaria baicalensis, 1 part of malt, 1 part of liquorice, 1-5 parts of dangshen, 1-5 parts of poria cocos and 1-5 parts of largehead atractylodes rhizome. According to the Chinese herbal medicine feed additive disclosed by the invention, the weaned pig growth performance can be improved, and the Chinese herbal medicine feed additive has the anti-diarrhea effect; the gastrointestinal tract development of the weaned pig can be promoted; the activity of the digestive enzyme of the gastrointestinal digestive tract of the wigged pig can be improved to promote the development of the pig digestive enzyme system; the micro-ecological environment of the digestive tract of the pig can be regulated and stabilized to accelerate the pig to grow; the antioxidation function of the wigged pig organism can be improved so as to improve the compensatory capability of the wigged pig organism on external irradiation; the intestinal mucosa form of the wigged pig can be improved so as to alleviate the intestinal villus withering of the wigged pig and promote the tract of the wigged pig to restore; and the immunologic function of the intestinal mucosa of the wigged pig can be regulated.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Decomposition maturing agent for fast decomposition-maturing straw

The invention discloses a farm fertilizer produced by biologic technology, in particular a decomposing agent for rapidly decomposing straws at low cost, the mixture ratio of which is aerobic bacillus subtilis Cohn 20%, Bacillus licheniformis 10%, aspergillus flavus 20%, chaetomiaceae 20%, absidia corymbifera 20%, and saccharomycetes 10%. The production procedures are: extracting different beneficial decomposed bacteria from organics from different environments, purifying, rejuvenating, breeding and culturing; inoculating the cultured bacterial strains into disinfected solid culture medium; fermenting for 4-5 days under 25-50 DEG C, airing dry so that the residual moisture in the bacterial strains is 25%; mixing, agitating evenly and packing the aired solid bacterial strains into solid decomposing agent. As the invention is made by using a unique optimization and combination of aerobic bacterial group and a high and new technology and production process, the invention is a pure biologic product, is free from smell and harm for making organic fertilizer by effectively decomposing wastes in the countryside, and the fermenting speed is high, the cost is low, and the source of raw material is wide. The invention has improved the soil structure and reduces environmental pollution.
Owner:李海泉

Saline-alkali soil conditioner

InactiveCN104591926AImprove deficiency symptomsEnhance salt-alkali resistanceSuperphosphatesMagnesium fertilisersPlant rootsSodium Bentonite
The invention relates to a composition for improving soil, in particular relates to a saline-alkali soil conditioner. The saline-alkali soil conditioner is prepared by mixing the following components by weight percent: 20%-35% of sulfur powder, 20%-30% of humic acid, 5%-10% of bentonite, 20%-25% of magnesium sulfate heptahydrate, 8%-12% of calcium superphosphate, 1%-2% of zinc sulfate heptahydrate and 2%-3% of boric acid. The saline-alkali soil conditioner can be used for regulating acid-base level of the soil, and effectively supplementing microelements in the soil, improving the nutritional deficiency symptom of crops, chelating harmful heavy metal elements in the soil, reducing saline and alkali degree, promoting the soil to form a granular structure, improving root growth environment of crops, enhancing saline and alkali resistance of crops, disease resistance and cultivation of resilience, reducing the harm of saline and alkali to plant roots, and releasing the effective phosphorous solidified by the soil, increasing soil fertility, holding water and saving fertilizer so as to finally and completely improve the soil, recover the soil fertility, increase both production and income and improve crop quality and utilization rate of the fertilizer.
Owner:SHANDONG JINHUANGYU BLUE SOIL MODIFIED ORGANISMS CO LTD

Organic-inorganic improvement fertilizer for saline-alkali soil and preparation method thereof

The invention discloses an organic-inorganic improvement fertilizer for saline-alkali soil and a preparation method thereof. The organic-inorganic improvement fertilizer is prepared from, 20-30 parts of bentonite, 20-30 parts of zeolite, 20-30 parts of flue gas desulfurization gypsum, 10-20 parts of dehydrated sludge, 20-30 parts of humic acid, 10-20 parts of coal ash, 20-30 parts of ardealite, 10-20 parts of peat, 10-20 parts of straw meal, 10-20 parts of animal waste, 2-8 parts of microbial inoculation bacteria and 2-5 parts of emulsified asphalt. The invention further provides a preparation method of the organic-inorganic improvement fertilizer for saline-alkali soil. According to the organic-inorganic improvement fertilizer, the physicochemical character of soil can be improved, soil permeability and moisture and fertilizer preservation can be improved, the soil ion exchange rate can be improved, the PH value can be buffered, the chemical fertilizer consumption can be reduced, the crop yield can be improved, the product quality can be improved, the soil improvement effect can be improved, and the soil improvement cycle can be shortened.
Owner:SHANDONG SUNWAY LANDSCAPE TECH

Saline-alkali soil conditioner and preparation method thereof

InactiveCN101659867AMiao QiSeedlings turn green quicklyAgriculture tools and machinesOther chemical processesChemistryAlkali soil
The invention relates to a saline-alkali soil conditioner and a preparation method thereof. The saline-alkali soil conditioner is constituted by glacial acetic acid, citric acid, oxalic acid and tap water. The preparation method comprises the following steps: weighing the tap water, citric acid and oxalic acid according to weight ratio and placing in a reaction kettle; starting stirring, warming up to 40 DEG C to 60 DEG C for 0.5 hour to 1 hour; weighing the glacial acetic acid according to weight ratio and placing in the reaction kettle; stirring, warming up to 50 DEG C to 60 DEG C for 0.5 hour to 1 hour; cooling down to 25 DEG C to 40 DEG C; carrying out measurement packaging after the samplings pass the inspection to obtain the finished product of saline-alkali soil conditioner. The saline-alkali soil conditioner in the invention is simple in manufacturing process, low in raw materials and production cost, and can realize the improvement of soil physicochemical property, inhibit theascending of saline matter and neutralizing the alkalinity of the soil.
Owner:路振国

Method for making fermenting bed for ecological pig breeding by using composite strain culture

InactiveCN101565684AShort degradation cycleStrong bacterial activityFungiBacteriaMicroorganismStart time
The invention discloses a method for making a fermenting bed for ecological pig breeding by using composite strain culture, in particular relates to a method for making the fermenting bed by using a plurality of microorganisms. The invention comprises the steps of preparing the culture and making the fermenting bed. In the invention, the culture is mainly prepared by microzyme, lactobacillus, actinomycetes, photosynthetic bacterium and mycelial fungus according to proportion. The culture after being activated is stirred uniformly with organic padding pro rata, piled, fermented, prepared into the fermenting bed, and then can be used for breeding live pigs. The method solves the problems of long fermenting starting time of the organic padding, unstable microbial inoculum, strict requirements on the fermenting conditions and materials as well as short service life in the existing ecological pig breeding method. The method uses the composite strain culture to build ecological colony house; the fermenting starting time of the organic padding is short, which can be 1 to 2 days in summer and 3 to 5 days in winter; the strain activity is strong; the decomposing process can be finished in 1 to 3 days; the effect lasts for long; and the fermenting bed can be continuously used for 5 to 8 years. Moreover, the method is green and environmental friendly.
Owner:千智伟

Industrial sludge treatment method and method for preparing various fertilizers by using treated industrial sludge

The invention discloses an industrial sludge treatment method and a method for preparing various fertilizers by using the treated industrial sludge. The industrial sludge treatment method comprises the following steps of: after industrial sludge is diluted, adding a heavy metal ion capturing and precipitating agent DTCR and reacting the agent with heavy metal ions in waste solution so as to generate water-insoluble chelated salt; adding a polyacrylamide flocculating agent to ensure that the chelated salt forms flocculent precipitates; and removing the flocculent precipitates to obtain sludge water, and adding potato water into the sludge water to ferment the sludge. The method for preparing various fertilizers by using the treated industrial sludge comprises the following steps of: preparing a powdery biological bacterial fertilizer by taking the sludge water obtained from the treated sludge as a raw material; and preparing a granular organic fertilizer and a fertilizer for changing saline and alkaline lands into fertile farmlands by taking the powdery biological bacterial fertilizer as a raw material. The industrial sludge treatment method has low cost and does not cause secondary pollution to the environment. The biological bacterial fertilizer and the granular organic fertilizer which are produced by the invention are used in lands of various areas, the yield is improved by 15 to 20 percent; and the fertilizer for improving the saline and alkaline lands has extremely obvious saline and alkaline transformation effect.
Owner:LIAOCHENG JINTAIYANG BIOCHEM

Forest planting method for saline and alkaline lands

The invention discloses a forest planting method for saline and alkaline lands. The forest planting method comprises the steps of digging pits in saline and alkaline land blocks according to the shapes of micro-moist irrigation devices, scattering a compound fertilizer to the bottoms of the pits, placing micro-moist irrigation devices and plants in the pits, and carrying out soil covering and backfilling. By virtue of the special compound fertilizer with microbial activity, the soil fertility can be durably provided, and the micro-moist irrigation devices can be automatically and manually regulated to irrigate, so that the water is saved, and the maintenance is facilitated; the soil condition of a planting region is effectively improved, the pH value is decreased from originally 8.7 to 7.4, the alkalization degree of soil is decreased to about 2.5%, the total porosity of soil is increased to about 50%, and the air permeability is increased to about 15%; and furthermore, the survival rates of plants are all above 95%.
Owner:SHANDONG SUNWAY LANDSCAPE TECH

Silicon wafer cleaning process

The invention discloses a silicon wafer cleaning process. The silicon wafer cleaning process comprises the following steps of (1) using deionized water to clean the surface of a silicon wafer, (2) using an SC-1 cleaning solution to clean the surface of the silicon wafer, (3) using deionized water to clean the surface of the silicon wafer, (4) using a mixed solution containing HF, HCL and H2O to clean the surface of the silicon wafer, and (5) using deionized water to clean the surface of the silicon wafer. According to the silicon wafer cleaning process, due to the fact that the HCL is added to DHF, acidity of the DHF is improved, the metal attachment phenomenon in cleaning fluid cannot easily happen in the high-acidity solution, and the high capacity of removing metal on the surface of the silicon wafer is achieved; compared with a DHF process, the silicon wafer cleaning process has the three advantages that Na, K, Ca, Mg and Al can be further and effectively removed through the HCL; the PH value of the solution of the HCL is lowered, the state of metal complexing ions in the cleaning fluid is controlled, and reattachment of metal is inhibited; the content of Cu2O and the content of CuO on the surface of the silicon wafer can be reduced, and thus the content of Cu on the whole surface of the silicon wafer is controlled.
Owner:SHANGHAI SHENHE THERMO MAGNETICS ELECTRONICS CO LTD

A kind of compound rice seedling raising agent and preparation method thereof

ActiveCN102295482AImprove the overall levelEnhances cold and drought resistanceFertilizer mixturesAmmonium sulfateHumic acid
The invention relates to a composite rice seedling agent and a preparation method thereof. The composite rice seedling agent comprises the following components based on 1000kg: 420-490kg of acidified coal slag, 100-150kg of sulfuric acid, 200-230kg of diammonium phosphate, 70-110kg of ammonium sulfate, 65-85kg of nitro humic acid, 30-40kg of rare earth, 27-35kg of potassium sulfate, 10-12kg of zinc sulfate and 8-10kg of iron sulfate. The composite rice seedling agent provided by the invention can be used for preventing and treating rice seedling blight and improving the disease-resistant capability and development quality of rice seedlings so that the rice seedlings can well thrive.
Owner:SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI

Three-step improvement method for saline alkali soil

The invention discloses a three-step improvement method for saline alkali soil. According to the method, the saline alkali soil is improved through three steps that firstly, the saline alkali soil is treated through ardealite, most of salt is taken away from the saline alkali soil, and the pH value of the saline alkali soil is lowered; secondly, the saline alkali soil is treated through bagasse absorption agents, polysilicon acid ferric sulfate, poly-aluminum ferric silicate sulfate and kieselguhr, the content of the salt and the pH value of the saline alkali soil are further lowered, and the soil structure of the saline alkali soil is improved effectively; thirdly, fermentation materials such as mushroom bran and oil cakes are adopted for treatment, the content of the salt in the saline alkali soil is further lowered, the pH value of the saline alkali soil is lowered, the content and category of microorganisms are increased for the saline alkali soil, and the content of organic matter of the saline alkali soil is increased.
Owner:GUIZHOU KAILIN GRP CO LTD +1

Acid lixiviation based recycling treatment method of aluminum circulating coagulation sludge

The invention provides an acid lixiviation based recycling treatment method of aluminum circulating coagulation sludge. The method is characterized by comprising the following steps of: dehydrating sludge to reduce water content of the aluminum circulating coagulation sludge to be lower than 80%; drying and baking; carrying out acidifying treatment: adding mixture of water and acid to adjust pH value of sludge slurry to 3, controlling reaction temperature to be 38 DEG C and agitating sludge and acid in mixed liquid so that the sludge and the acid sufficiently contacts; separating and purifying; and finally, filtering, evaporating and crystallizing to obtain crystal aluminum salt with a flocculation effect. According to the acid lixiviation based recycling treatment method of the aluminum circulating coagulation sludge, a large part of water and aluminum in the sludge is converted into a flocculating agent and impurities are further removed by separating to purify the flocculating agent, thereby improving the recycling of an aluminum salt flocculating agent, greatly reducing sludge disposal cost and further reducing COD (Chemical Oxygen Demand), pH value, residual organic matters and chromaticity of the sludge wastewater; and therefore, the aim of recycling is realized, the subsequence biochemical treatment is easy to implement and the damage of wastewater discharging to the environment is reduced.
Owner:NANJING UNIV

Drinking type acidulant and preparation method and application thereof

The invention relates to a drinking type acidulant and a preparation method and application thereof. Each 100ml of the acidulant contains components of 15-25ml of formic acid, 25-35ml of lactic acid,15-25g of citric acid, 5-15g of fumaric acid, 1-8g of calcium formate, 1-8g of sodium butyrate and the balance deionized water, wherein all of the components are 100ml. The preparation method comprises the following steps of performing injection according to the amount of 50-80% of the total amount of water to a stirring tank, starting a power supply, performing stirring at 120r/min, slowly addingthe fumaric acid, then adding the calcium formate and the sodium butyrate, performing stirring for 15min, after the fumaric acid, the calcium formate and the sodium butyrate sufficiently dissolve inthe water, slowly adding the citric acid, the lactic acid and the formic acid separately, and finally, adding the remaining water for uniform stirring so as to obtain products. Compared with the priorart, the drinking type acidulant contains various organic acid and organic acid salts, can regulate the acid of a ration system, can reduce the pH value of the digestive tracts of animals, can improve the activity of digestive enzymes, can promote the digestion of nutrient substances, can effectively control diarrhoea of piggies at the weaning and child care period, can regulate the intestinal microecology balanced, and can promote growth of the piggies at the weaning and child care period. Besides, when the drinking type acidulant is drunk, growth and propagation of pathogenic microorganismsin animal organisms, feeds and environment can be greatly reduced, and the usage amount of antibiotics can be directly reduced, so that drug tolerance, remaining and pollution problems caused by antibiotics can be reduced.
Owner:FUJIAN AONONG BIOLOGICAL TECH GRP CO LTD

Fresh-keeping method for prolonging preservation duration of strawberries

The invention belongs to the field of food preservation, and particularly relates to a fresh-keeping method for prolonging preservation duration of strawberries. The method comprises the following steps: selecting materials, preparing strawberry extracts, preparing a mixed chitosan solution, preparing fresh-keeping liquid, and soaking and air drying strawberries. The main components of the fresh-keeping liquid are supernate extracted from the strawberries and chitosan, raw materials of the supernate and the chitosan can be obtained conveniently, and particularly the supernate of the strawberries can be directly extracted from the bought strawberries, and is not required to be separately bought. According to the method, bacillus subtilis is added into the fresh-keeping liquid, so that growth and reproduction of mycete and botrytis cinerea can be effectively inhibited. Active substances, such as subtilin and gramicidin are produced during the growth of bacillus subtilis cells, and have obvious inhibition effects on the mycete and botrytis cinerea; in addition, the bacillus subtilis quickly consumes oxygen in the environment, and produces organic acids, such as lactic acid, so that the PH value of the environment is reduced, the growth of the mycete and botrytis cinerea is indirectly inhibited, and the storage duration is greatly prolonged.
Owner:HENAN UNIV OF SCI & TECH
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