160 results about "Selenate" patented technology

The invention consists of a water treatment process using selective and regenerable weak base anion exchange resins to remove any number of complex anions, especially oxyanions including perchlorate, nitrate, chlorate, arsenate, selenate, and chromate, from aqueous solutions. The treatment process is comprised of three key processes including 1) pretreatment to lower pH, 2) ion exchange, and 3) post treatment to adjust pH and alkalinity. The invention also includes processes for regenerating weak base anion resins and treatment of the residuals generated. This invention employs pressurized treatment, carbon dioxide management, and reuse of regenerating solution to minimize pumping and treatment costs.

The invention discloses a heavy-metal-resistant plant growth detoxification accelerant and a method for using the same. The accelerant is characterized by containing low dose of one of selenate or selenite, wherein an amino acid micro element fertilizer is also added, and the accelerant is sprayed onto the leaves for a plurality of times during a period of 7-40 days before crops are harvested. A method for preparing and the method for using are simple and practicable and are convenient to popularize. By the accelerant, the contents of heavy metals of cadmium, antimonium and the like in the crops can be effectively reduced, the crop yield and quality are improved, and the problem that most people in China insufficiently intake selenium can be relieved through a method of reasonably increasing selenium contents in agricultural products, so that the production safety of the agricultural products in heavy metal pollution regions is effectively guaranteed.

A method for cultivating Se-enriched garlic cloves and garlic bolts features that beside conventional cultivation steps including sowing, thinning out seedlings, applying fertilizer, etc or use of water culture procedure, the sodium selenite (or selenate) and nutritive liquid are mixed to obtain the liquid selenium fertilizer, which has different concentrations of inorganic selenium for different growth phases. Said garlic cloves and garlic bolts feature their health-care function.

The invention relates to a solid particle selenium fertilizer and the manufacture method. It includes 19-33 portions pumice, 65-80 portions of bentonite, and 0.5-2 portions of selenate or selenite. The method includes the following steps: crashing and mixing raw materials, dissolving selenate or selenite into 20-30 portions water, spraying, drying and cooling, filtering to gain 2-4mm particles as selenium fertilizer. The invention has the advantages of good versatility, short effecting time, abundant using efficiency, cheap raw material, etc.

The selenium-rich sweetener consists of selenate 10-20 wt%, sodium nitropeolate compound 5-10 wt%, RE and/or calcium chloride 20-40 wt%, 2, 4-D sodium 0.1-0.6 wt%, peregal 0.1-0.6 wt%, Mo 7.5-12.5 wt%, Zn 12.5- 25 wt%, and B 12.5-25 wt%. It is prepared through drying material, crushing, mixing and packing. The selenium-rich sweetener is applied to melon and fruit to increase selenium content, sweeten, raise quality and raise yield.

The invention belongs to the field of water treatment, and in particular relates to an iron-aluminum-manganese composite metal oxide adsorbent for efficiently removing phosphate from water and a preparation method thereof. The iron-aluminum-manganese composite metal oxide adsorbent for removing phosphate from water is prepared from raw materials including ferrite, an aluminum salt and permanganate through an oxidation-reduction and coprecipitation method, and comprises the components including hydroxyl iron oxide hydrate, hydroxyl aluminum oxide hydrate, manganese oxide hydrate and the like. The iron-aluminum-manganese composite metal oxide adsorbent has rich surface activity adsorption sites and high isoelectric points (IEP>8.5). The electrostatic adsorption of composite metal oxides to the phosphate in water is strengthened by using synergistic action of all component metal oxides. The iron-aluminum-manganese composite metal oxide adsorbent provided by the invention can be used for removing phosphate from reservoirs, rivers, lakes, drinking water and urban sewage, and can also be used for removing contaminants including arsenate, selenate, fluorine ions and the like.

Processes for treating aqueous solutions to remove dissolved selenium species, for example in the presence of an excess of sulphate anions, which include the use of strongly basic anion exchange resins, or co-precipitation and adsorption of the selenate (and selenite) with mixed ferrous and ferric iron, or combinations thereof. Co-precipitation and adsorption of selenate may take place in an electrolytic cell in the presence of ferrous and/or ferric iron.

The invention provides a 1% compound premix for rabbits, belonging to the field of compound premixes. The compound premix of the invention contains vitamin A, vitamin D3, vitamin E, nicotinic acid, iron amino acid chelate, manganese amino acid chelate, zinc amino acid chelate, copper amino acid chelate, cobalt amino acid chelate, iodized salt, selenate, choline chloride, hydrolyzed animal protein and carriers. The compound premix of the invention is suitable for three rabbits with different growth phases, namely, leverets, breeding rabbits and growing rabbits, and can improve the survival rate of leverets, accelerate the growth of the growing rabbits and enhance the reproductive capacity of breeding rabbits. The compound premix for rabbits of the invention is safe for rabbits, low in cost and beneficial to popularization and production.

The present invention provides a metal-organic framework (MOF) for use in removing particular chemical species or compounds from a liquid. In particular, the present invention provides an MOF having a molecular formula of Zr₆(μ₃-O)₄(μ₃OH)₄(OH)₄(H₂O)₄(TBAPy)₂, wherein TBAPy is 1,3,6,8-tetrakis (p-benzoic-acid)pyrene, (known as NU-1000) for use in complexing selenate or selenite from a liquid or liquid stream. Further, the selenium based oxy-anions are removed to concentrations below that specified for wastewater discharge by the U.S. Environmental Protection Agency for flue gas desulfurization operations in the fossil fueled electric power generation industry. Such water treatment results are achieved even in the presence of competing sulfate anion challenges and at elevated temperatures comparable to condensate cooling water.

The invention discloses selenium-enriched mung bean sprouts and a production method thereof, and belongs to the technical field of production of selenium-enriched agricultural products. The method includes the specific steps: inoculating capsule rhodobacter AYGHJ-16 in a culture medium to prepare selenium-enriched inoculant, diluting the selenium-enriched inoculant with water to selenium-enriched inoculant diluent in the volume 60-80 times of that of the selenium-enriched inoculant, placing mung bean seeds in the selenium-enriched inoculant diluent in 80 times volume for seed soaking and accelerating germination for 24-48 hours, then sprouting and growing at the room temperature of 20-28 DEG C, spraying with the selenium-enriched inoculant diluent in 60 times volume for one time every four hours in a sprouting process until sprouts grow to 5-8 centimeters after 4-5 days of sprouting and grouping, and taking out the sprouts prior to washing clean with running water so that the selenium-enriched mung bean sprouts are obtained. The selenium-enriched mung bean sprouts produced by the method are 1-1.2mg/L in selenium content, free of inorganic selenate or selenite and capable of meeting requirements on long-term security selenium supplement of people.

The invention relates to a chromium zinc selenium fertilizer, which comprises the following components by weight: 10-20 of selenate or selenite, 35-50 of a chromic salt, 25-35 parts of zinc sulfate, 10-15 of boric acid or borax, 2-5 of sodium nitrophenolate, and 2-5 of citric acid. The production process of the fertilizer consists of: material preparation, burdening, stirring, crushing, inspection, and packaging. And the using method includes: use for plants: dissolving the chromium zinc selenium fertilizer in water, and spraying the solution on the front and reverse side of a leaf as well ason a fruit with a spraying amount that generates no droplet but sprays plants wet; use for livestock and laying hens: blending the chromium zinc selenium fertilizer uniformly in feed for continuous use. The chromium zinc selenium fertilizer of the invention fills the domestic gap of chromium zinc selenium fertilizers, substantially increases the content of selenium, zinc, and chromium of agricultural products, and improves quality. It can also significantly improve the disease-resistant ability of crops. The using technology of the invention is fully mature, and has very strong paleogenesis, stability, and operability.

The invention relates to the field of agriculture technology, and concretely relates to an organic foliar fertilizer for improving quality of Canna edulis. The foliar fertilizer is prepared by the following raw materials in percentages by weight: 1-3% of selenium rich yeast, 1-3% of Lactobacillus acidophilus, 1-3% of Bacillus megaterium, 1-3% of thermophilic Bacillus, 5-10% of an extract product of sweet osmanthus, 5-9% of an extract product of peas, 5-10% of extract of pyrethrum, 3-8% of an extract of potato peels, 5-10% of an extract of leeks, 5-10% of an extract product of Kiwi berries, 3-8% of an extract product of blueberries, 5-8% of chicken hearts, 8-15% of polysaccharide selenate, 5-15% of an extract of Artemisia capillaries, 8-12% of nutgrass flatsedge, and 7-12% of selenium rich garlics. The foliar fertilizer has better absorption effects and capability for resisting diseases and insects, spraying of the foliar fertilizer can be used for improving proportions of various element contents in Canna edulis and improving economic value of Canna edulis, and the purpose for increasing income is realized.

The invention discloses selenium-rich Chinese toon sprouts and a production method thereof and belongs to the technical field of selenium-rich agriculture product production. The production method comprises the following specific steps: inoculating capsule rhodobacter AYGHJ-16 in a culture medium to prepare a selenium-rich microbial inoculum, diluting the selenium-rich microbial inoculum with water into 20-50 times volume of selenium-rich microbial inoculum diluent, putting Chinese toon seeds into the 50 times selenium-rich microbial inoculum diluent to be soaked and germinated for 24-48 hours, sprouting and growing at the room temperature of 20-25 DEG C, spraying once by using the 20 times selenium-rich microbial inoculum diluent every other four hours in the sprouting process, after sprouting and growing for 5-6 days, sprouts grow to 8-10 cm, taking out the sprouts and washing the sprouts with running water to obtain the selenium-rich yeast Chinese toon sprouts. The selenium-rich Chinese toon sprouts produced by the method contain 1-1.5mg/L of selenium, do not contain inorganic selenate or selenite and can meet the requirement of people for long-term safe selenium supplement.

The invention discloses a selenium-rich buccal cigarette and a preparation method thereof. The selenium-rich buccal cigarette is prepared from the following components in parts by weight: 10-20 parts of polysaccharide selenate, 0.5-2 parts of nicotine, 1.5-5 parts of tobacco leaf molecular distillate, 40-60 parts of xylitol, 5.7-9.9 parts of maltitol, 3-10 parts of gelatin, 0.2-1 part of edible essence, 0-0.1 part of food colouring, and 10-50 parts of purified water. The preparation method comprises the following steps: firstly dissolving the gelatin in water, mixing the gelatin solution with the polysaccharide selenate, the nicotine and the tobacco leaf molecular distillate, then mixing the mixing solution with syrup prepared from the xylitol and the maltitol, adding the essence and the colouring into the mixture, heating, uniformly mixing, then pouring into a mold, and finally demolding. The selenium-rich buccal cigarette has the advantages that no second-hand smoke is generated, so that the health of people around a smoker is not influenced; the selenium-rich buccal cigarette is convenient to carry, and the smoker is not limited by the environment or place when smoking the cigarette; and the buccal cigarette is rich in selenium, so that the special requirements of consumers on nicotine are met when the consumers smoke the cigarette, and moreover, the microelement selenium needed by the human body is also supplemented.