36results about How to "Reduce heavy metal toxicity" patented technology

The invention discloses an organic selenium-enriched liquid fertilizer and a preparation method thereof. The organic selenium-enriched liquid fertilizer comprises the following components in percentage by weight: more than or equal to 10 percent of total animal keratin hydrolyzed amino acid, 0.1 to 3 percent of organic selenium in terms of selenium, 2 to 3 percent of surfactant, more than or equal to 1.0 percent of trace element zinc required by plants, more than or equal to 1.0 percent of boron, and the balance of water. The invention also provides the preparation method of the organic selenium-enriched liquid fertilizer. The organic selenium-enriched liquid fertilizer is safe in production and application, can improve the selenium absorption efficiency of farm crops and improve disease and insect resisting, drought and flood resisting and yield increasing capacities of the farm crops, has the characteristics of supplementing the selenium, improving the fruit quality of the farm crops and reducing heavy metal toxicity, and has a storage life of 3 years without deterioration.

The present invention discloses a biological treatment mineralization ecological system for sludge. Said system includes artificial wetland bed which is a pool-shaped structure with four walls, on the four walls and bottom portion a water-proofing layer is respectively laid, on the water-proofing layer a filling material layer is set, said filling material layer includes coarse river sand and turf mixed layer, rice straw layer, large grain size broken stone layer and small grain size broken stone layer which are successively distributed from top to bottom. On the coarse river sand and turf mixed layer several slurry transmission pipes are horizontally laid, in the bottom portion of artificial wetland bed several water discharge pipes are horizontally laid, on the filling material layer the wetland plants can be planted, in its interior the microbe can be added.

The invention provides a method for preparing color blocking layers of liquid crystal display panels. The method includes steps of respectively preparing red quantum dots, yellow quantum dots and green quantum dots; mixing the red quantum dots, the yellow quantum dots and the green quantum dots with one another, dissolving the red quantum dots, the yellow quantum dots and the green quantum dots and centrifugally purifying and treating the red quantum dots, the yellow quantum dots and the green quantum dots to obtain solution of white quantum dots obtained after the red quantum dots, the yellow quantum dots and the green quantum dots are mixed with one another; respectively treating solution of the red quantum dots, solution of the yellow quantum dots, solution of the green quantum dots and the solution of the white quantum dots to obtain red photosensitive dispersion liquid, yellow photosensitive dispersion liquid, green photosensitive dispersion liquid and white photosensitive dispersion liquid; coating the red photosensitive dispersion liquid, the yellow photosensitive dispersion liquid and the green photosensitive dispersion liquid on glass substrates according to preset rules and forming the color blocking layers of the liquid crystal display panels by the aid of exposure and development manufacturing processes. The method has the advantages that the brightness and color expressive force of liquid crystal displays can be effectively improved by the aid of the method, and the color gamut of the liquid crystal displays can be effectively expanded by the aid of the method.

The invention discloses an anti-radiation vital energy tonifying electuary. The electuary is prepared mainly from the following raw materials in parts by weight: 35-55 parts of puer tea, 12-18 parts of astragalus membranaceus, 8-12 parts of medlar, 6-8 parts of fried jujube kernel, 7-10 parts of cape jasmine, and 8-12 parts of radix pseudostellariae. The electuary has the characteristics of good anti-radiation effect and convenience in portability, can play the effect of quick radiation resistance to whole body under the action of oral administration, can be used for strengthening immunity, reducing blood sugar and beautifying, and has a main function of tonifying qi and nourishing blood. Furthermore, puer tea which is common in local areas is used as a main raw material, so that the electuary is a traditional Chinese medicinal preparation which has tea fragrance, can resist radiation, and can be used for tonifying qi and blood when being prepared from the puer tea and other medicinal materials.

The invention discloses a preparation method of a selenium-rich high protein active peptide additive. The method includes: subjecting feed grade sodium selenite and a yeast dry powder solution to fermentation reaction to prepare organic liquid selenium yeast, conducting mixed fermentation on the organic selenium yeast, fermented chicken manure, feather meal, meat and bone meal, eggshell, an enzymepreparation, molasses and the like, controlling the water content of the obtained fermented material at about 70% and breeding housefly larvae for a period of time, then getting the housefly larvae out and performing washing, then subjecting the washed housefly larvae and liquid selenium yeast to mixed fermentation for 24h to obtain a selenium-rich high protein active peptide extracted liquid, using feed grade calcium powder for adsorption, employing a heat pump for drying, and conducting milling to 300-800 mesh, thus obtaining the selenium-rich high protein active peptide additive raw material. The selenium-rich high protein active peptide additive prepared by the method provided by the invention has the advantages of: safety, no residue and no pollution, is a green feed and fertilizer additive capable of replacing antibiotics and pesticides, and has broad application prospects.

The present invention discloses a resource treatment method for urban sludge, which comprises the following steps of: ultrasonically treating the urban sludge, transferring to an expander, sealing, heating until the internal gas temperature reaches 120-160 DEG C and the pressure reaches 2-5 atm, opening the extruder cover, cooling to room temperature and taking out the sludge. The resource treatment method achieves the volume reduction and dewatering of the urban sludge, improves the combustion value of the sludge, simultaneously reduces the secondary pollution of heavy metals, pathogens and other harmful substances in the urban sludge, and achieves volume reduction, harmlessness and resource treatment of the urban sludge.

The invention discloses an organic selenium-enriched liquid fertilizer and a preparation method thereof. The organic selenium-enriched liquid fertilizer comprises the following components in percentage by weight: more than or equal to 10 percent of total animal keratin hydrolyzed amino acid, 0.1 to 3 percent of organic selenium in terms of selenium, 2 to 3 percent of surfactant, more than or equal to 1.0 percent of trace element zinc required by plants, more than or equal to 1.0 percent of boron, and the balance of water. The invention also provides the preparation method of the organic selenium-enriched liquid fertilizer. The organic selenium-enriched liquid fertilizer is safe in production and application, can improve the selenium absorption efficiency of farm crops and improve disease and insect resisting, drought and flood resisting and yield increasing capacities of the farm crops, has the characteristics of supplementing the selenium, improving the fruit quality of the farm crops and reducing heavy metal toxicity, and has a storage life of 3 years without deterioration.

The invention discloses a tea cream capable of resisting radiation and tonifying heart and spleen. The tea cream is mainly prepared from the following raw materials in parts by weight: 30-45 parts of Pu'er tea leaves, 15-20 parts of yam, 12-15 parts of astragalus membranaceus, 5-9 parts of codonopsis pilosula, 6-8 parts of polygonum multiflorum and 4-7 parts of fructus psoraleae. The tea cream disclosed by the invention has the characteristics of being good in radiating resisting effect and convenient to carry; the tea cream, which is internally taken, can rapidly take an effect of resisting the radiation for the whole body, and has functions of increasing immunity, reducing blood sugar and beautifying; most importantly, the tea cream can tonify the heart and the spleen, build body, and relieve insomnia, nervousness, palpitation and other symptoms caused by heart-spleen deficiency; the traditional Chinese medicinal tea cream, which is mainly prepared from the common Pu'er tea leaves as well as other medicinal materials, not only can reserve a tea fragrance, but also can resist the radiation and can tonify the heart and the spleen.

The invention discloses an anti-radiation electuary capable of replenishing qi and blood. The electuary is prepared by the following raw materials by a weight ratio: 35-55 parts of Pu'er tea leaves, 12-18 parts of Radix Astragali, 8-12 parts of matrimony vine, 6-8 parts of fried jujube, 7-10 parts of cape jasmine and 8-12 parts of radix pseudostellariae. The anti-radiation electuary capable of replenishing qi and blood has characteristics of good radiation prevention effect and convenient carrying, under oral administration effect, the radiation prevention effect for whole body can be affected rapidly, immunity is enhanced, blood sugar is reduced, beauty treatment is realized, and functions of replenishing qi and enriching blood can be realized. According to the invention, locally-common Pu'er tea leaves can be taken as a main raw material, by cooperating with other medicinal materials, the traditional Chinese medicine preparation having tea fragrance capable of replenishing qi and blood can be prepared.

The invention discloses an organic bacterial fertilizer for the restoration of manganese ore-polluted soil, as well as a preparation method thereof. The organic bacterial fertilizer comprises the following raw materials in parts by mass: 3-5 parts of basic nutrient solution, 20-25 parts of remissive complex organic raw materials, 70-75 parts of water retention media and 3-5 parts of anti-manganese complex microbial agent. The preparation method comprises the mixing and fermentation steps. The organic bacterial fertilizer for the restoration of manganese ore-polluted soil has the effects that the soil structure is modified, the water retention and constant temperature can be achieved, the toxicity of heavy metals around roots can be reduced, the survival rate of plants can be increased, and the growth of plants can be promoted; in addition, the toxicity of manganese elements in the soil of plant roots can also be effectively relieved, the effect of the organic fertilizer can be enhanced, and the restoration capability of plants can be enhanced.

The invention belongs to the technical field of pollution repairing and relates to a soil conditioner for repairing heavy metal polluted farmland and a production method of same. The soil conditioner includes biochar, minerals and cyclodextrin. The production method includes the steps of: (A) preparation of the biochar: calcining carya cathayensis peel carbon to obtain pyrolyzed biochar and performing high-pressure hydrothermal treatment to the carya cathayensis peel carbon to obtain hydrothermal biochar, and mixing the pyrolyzed biochar and the hydrothermal biochar to obtain the biochar; (B) preparation of the minerals: uniformly diatomite powder and chitosan according to the mass ratio of 3:1 to prepare a diatomite composite; (C) blending: uniformly mixing the pyrolyzed biochar, the hydrothermal biochar, the diatomite composite and sheep manure to prepare the soil repairing agent; and (D) granulation: mixing the soil repairing agent with cyclodextrin and performing granulation to obtain the soil conditioner. The soil conditioner, when being used for rice farmland, is economical and effective, allows in-situ repairing and has no addition of chemical substances.

The invention discloses a method for modifying biochar, comprising: 1) pyrolyzing wheat straw and fresh whole cattail plants into biochar with limited oxygen and pulverizing them; 2) first soaking the prepared biochar in hydrogen peroxide, and then Soak in an aqueous solution of maleic acid and polyethylene glycol, cool and filter to obtain solid phase A; 3) disperse solid phase A in ethanol to form a suspension, add 2, 2, 6, 6-tetramethylpiperidine-nitrogen-oxide, methacrylic acid to obtain solid phase B; 4) solid phase B is soaked in an aqueous solution of acetic acid, and potassium periodate is added to the solution to obtain solid phase C; 5) The solid phase C was soaked in the mixture of dimethylformamide and N-methylpyrrolidone to obtain the modified biochar. The invention optimizes the modification process of biochar, adopts wheat straw and cattail as composite biochar, and optimizes the modification on the basis of the composite biochar, so that the Cd repair effect of biochar is very significant, and after being applied to cadmium-contaminated soil , significantly reducing the toxicity of heavy metals in the soil.

The invention provides a method for plant-microbial remediation of heavy-metal polluted soil. The method includes the steps: A preparing mycorrhizal fungus inoculants; B performing symbiotic culture on the mycorrhizal fungus inoculants and seeds of host plants; C transplanting young seedlings into the heavy-metal polluted soil; D performing harvest after the growing period of the host plants finishes. According to the method, growth of the host plants is simulated under facilitation of the natural soil conditions, tolerance of the host plants for toxic substances is improved, various heavy metals in the soil are adsorbed, the content of the heavy metals in the soil is greatly reduced, remediation cost is remarkably reduced, remediation cycles are shortened, and the method has an excellent remediation effect on moderate or severe heavy-metal pollution.