2576 results about "Ferrous sulphate" patented technology

The invention discloses coal gangue lightweight through-hole ceramsite. The technical scheme has the essentials that the coal gangue lightweight through-hole ceramsite is composed of coal gangues, attapulgite clay, a powdery coal gangue foaming agent, active carclazyte waste dreg, hollow microspheres, lightweight magnesium oxide, expanded perlite, expanded vermiculite, ferrous sulfate and quick lime. The materials of the coal gangue lightweight through-hole ceramsite are stirred and mixed, extruded and granulated, dried, roasted, subjected to heat insulation, sieved, sealed and packaged to prepare the coal gangue lightweight through-hole ceramsite. The coal gangue lightweight through-hole ceramsite has the characteristics of large specific surface area, small bulk density, high water absorption rate, excellent ventilation performance, beautiful appearance and shape and no odors, no harmful bacteria, good lightweight strength, and consistent micro-pores and macro-pores. When the coal gangue lightweight through-hole ceramsite is used for culturing or planting various types of nursery stocks, flowers and vegetables, the roots of the plants can absorb nutrition constituents of water or a liquid fertilizer from the coal gangue lightweight through-hole ceramsite, so that good growth and development and the survival rate of the plants are ensured and the coal gangue lightweight through-hole ceramsite is suitable for preparing a soilless culture substrate and nutrient soil.

The invention provides a special organic-inorganic composite biological pesticide-fertilizer for flowers. The special organic-inorganic composite biological pesticide-fertilizer for flowers comprises the following raw materials in parts by weight: 80-90 parts of municipal sludge, 10-20 parts of fruit peel, 10-20 parts of fallen leaves, 10-15 parts of poultry manure, 10-14 parts of bagasse, 20-30 parts of iron ore slag, 10-12 parts of animal feathers, 10-15 parts of tree ash, 10-15 parts of monoammonium phosphate, 20-25 parts of urea, 10-12 parts of ammonia sulfate, 8-10 parts of ammonium hydrogen carbonate, 8-10 parts of potassium chloride, 5-7 parts of carboxymethyl chitosan, 20-30 parts of modified bentonite, 5-8 parts of lignite, 2-4 parts of black dye tree, 9-11 parts of celastrus angulatus, 9-11 parts of common carpesium fruit, 9-11 parts of radix sophorae flavescentis, 4-6 parts of lilac daphne flower bud, 3-5 parts of coptis root, 10-12 parts of powder of root of stellera chamaejasme, 2-4 parts of vegetable oil, 1-3 parts of zinc sulfate, 3-4 parts of ferrous sulfate, 0.8-1.2 parts of borax, 20-26 parts of potassium fulvate and 0.3-0.4 part of EM (effective microorganism) strain. The pesticide-fertilizer disclosed by the invention has the advantages of scientific ratio of nitrogen, phosphorus and potassium, easiness in absorption by crops, obvious yield-increasing benefit and the like. By applying the pesticide-fertilizer, the nutrient absorption of plants can be balanced, the quality of flowers can be effectively improved, plants are green in leaves and bright in flower, and the flowering phase is also prolonged.

The invention provides a specialized organic / inorganic composite biological medicine fertilizer for watermelon, and a preparation method thereof. The weight parts of composition raw materials are as follows: 50-70 parts of sludge produced by sewage treatment, 20-30 parts of tree ash, 30-40 parts of watermelon vines, 20-30 parts of cow manure, 15-20 parts of bagasse, 5-7 parts of fishbone dust, 8-10 parts of oil cakes, 10-15 parts of the tree ash, 10-15 parts of phosphorus slag, 8-10 parts of poultry feather, 8-10 parts of monoammonium phosphate, 10-12 parts of triple superphosphate, 12-15 parts of potassium chloride, 2-4 parts of carboxymethyl chitosan, 20-30 parts of modified bentonite, 10-12 parts of decomposed coal, 2-4 parts of seven leaf clover, 9-11 parts of angled bittersweet, 8-10 parts of capillary artemisia, 5-7 parts of fructus cnidii, 6-8 parts of fructus quisqualis, 3-5 parts of wormwood, 3-5 parts of litsea cubeba, 8-10 parts of daturae flower powder, 3-5 parts of paraffin, 1-1.25 parts of zinc sulfate, 2-3 parts of ferrous sulfate, 0.8-1.2 parts of borax, 10-12 parts of potassium fulvic acid, 3-4 parts of chili oil and 0.2-0.5 part of EM strains. A green organic fertilizer is obtained by mixing a plurality of organic wastes and fermenting the mixture, thereby reducing environment pollutions. The specialized organic / inorganic composite biological medicine fertilizer for the watermelon has the advantages of comprehensive nutrition and enhanced sterilizing effects by mixing the fermented organic materials and inorganic fertilizer and adding medicine juice of the Chinese herbal medicine having insectidical functions. With the application of the fertilizer, watermelon quality can be effectively increased; and the watermelon has green leaves, bright flower, prolonged flowering period and increased output.

The invention discloses a soil conditioner produced from ardealite as well as a producing method and a using method of the soil conditioner. The soil conditioner contains ardealite, humic acid, ferrous sulfate, urea and sulfuric acid which are mixed and shaped to granules. The soil conditioner is produced from ardealite which is the main raw material and added with a certain amount of nutrient elements and has the characteristics of conditioning the soil structure, adjusting pH of soil, activating the activity of nutrient elements of the soil, supplementing trace elements such as calcium, sulphur, ferrum and zinc in the soil, and the like; and the soil conditioner is suitable to conditioning of saline-alkali soil. The soil conditioner has the advantages of lowering the pH of surface soil, the content of water-soluble Na<+> and exchangeable Na<+> in the soil, the alkalisation degree and the volume weight of the soil, and enhancing the soil infiltration, the utilization rate of fertilizers and the soil productivity. A method for conditioning saline-alkali land, which is effective, economical, practical and consistent with the actual situations, is successfully proposed.

The invention relates to an iron, cobalt and nitrogen codoped carbon catalyst and a preparation method and application thereof. An iron / cobalt double-metal zeolite imidazate framework material is adopted as a precursor, and the iron, cobalt and nitrogen codoped carbon catalyst is prepared and obtained through high-temperature pyrolysis, wherein the iron / cobalt double-metal zeolite imidazate framework material is prepared by adopting ferrous sulfate, cobalt nitrate and 2-methylimidazole to carry out a self-assembly reaction in a solvent under an oxygen-free environment. The iron, cobalt and nitrogen codoped carbon catalyst prepared in the invention has the advantages that the oxygen reduction catalytic activity, electrochemical stability and methanol poisoning resistance is superior to those of commercial Pt / C, the cost is low, the preparation method is simple and volume production can be realized. The catalyst disclosed by the invention can be widely applied to the fields of fuel batteries, metal-air batteries and the like.

The invention discloses a composite soil conditioner which belongs to the technical field of fertilizers, and mainly includes the following raw materials in parts by weight: 100-500 parts of humic acid with 45% of organic matter, 0.5-2 parts of ferrous sulfate, 8-100 parts of polyglutamic acid, 15-150 parts of polyaspartic acid, 1-50 parts of earthworm powder, 12-180 parts of shell powder, 10-50 parts of soybean cakes, 1-10 parts of amino-oligosaccharin, 10-30 parts of attapulgite powder and 10-20 parts of microorganism composite zymophyte. The composite soil conditioner provided by the invention can provide nutrition, adjust and balance the pH value of soil, adjust the soil microflora, improves the water retention, fertilizer maintenance and breathability of soil, degrade organic pollutants, releases phosphorus and potassium, has the antagonism function to heavy metals or can be used for precipitating heavy metals, reduces absorption of crops to heavy metals, and has the multiple conditioning functions of detoxifying the soil, building up fertility, improving the physical properties and micro-ecological environment of soil.

The invention relates to preparation method and application method of a grape special fertilizer, wherein the preparation method comprises the following steps: preparing an I-type fertilizer by taking the following ingredients in parts by weight: 30-40 parts of urea, 20-30 parts ammonium phosphate, 15-30 parts of potassium sulphate, 1-3 parts of humic acid, 1-3 parts of excrement, 1-5 parts of synergist, 0.1-1.0 part of ferrous sulphate, 0.1-0.8 part of zinc sulfate, 0.1-0.6 part of manganese sulphate, 0.1-0.6 part of borax, 0.1-0.4 part of copper sulfate, 3-7 parts of plaster and 3-13 parts of bentonite; preparing an II-type fertilizer by taking the following ingredients in parts by weight: 7-15 parts of urea, 25-35 parts ammonium phosphate, 35-45 parts of potassium sulphate, 1-3 parts of humic acid, 1-5 parts of excrement, 2-5 parts of synergist, 0.1-1.0 part of ferrous sulphate, 0.1-0.8 part of zinc sulfate, 0.1-0.6 part of manganese sulphate, 0.1-0.6 part of borax, 0.1-0.4 part of copper sulfate, 3-7 parts of plaster and 3-13 parts of bentonite; and blending, spraying, pelleting and drying at lower temperature to obtain the product. The application method of the fertilizer comprises the following steps: taking an organic fertilizer and the II-type fertilizer as a base fertilizer; applying the I-type fertilizer before blossom, applying the II-type fertilizer in the young fruit development period, and meanwhile, respectively spraying monopotassium phosphate and rare earth mixed liquid once on the leaf surfaces; and spraying calcium nitrate or calcium acetate to enhance the storage resistance property before picking.

The invention relates to a chemical oxidation remediation method for organism-contaminated soil and a remediation device. The device comprises an oxidant pot, a catalyst pot, a chelating agent pot, aflexible pipe, an electric valve, a control apparatus, a valve switch, a pump, a flow valve, a reactor, a stirrer, a stirrer switch, a sealing cover, a liquid inlet pipe, an exhaust pipe, a gas-liquidseparating apparatus and a tail gas treating apparatus. The method comprises the following steps: placing contaminated soil into the reactor; firstly injecting 0.03-0.4mol / (kg soil) of citric acid into the reactor through the chelating agent pot; then adding 0-0.4mol / (kg soil) of catalyst ferrous sulfate in the catalyst pot, and adding water to be dissolved to prepare 0.5mol / l of catalyst; injecting the catalyst into the reactor by the pump; pumping 1-2mol / (kg soil) of oxidant hydrogen peroxide into the reactor; and fully stirring the three preparations and the contaminated soil by the stirrer in the reactor to oxidize and degrade polycyclic aromatic hydrocarbon in the soil, and the removal rate of pollutants in the soil exceeds 80 percent. The invention has high efficiency on organics-contaminated soil remediation and can not cause secondary pollution to the soil.

The present invention relates to high solid content vinyl acetate-ethylene copolymer latex for binder and the synthetic method, including 55 to 75 portion of vinyl acetate, 24 to 45 portion of ethylene, 3 to 5 portion of N-methylol acrylamide, 2 to 4 portion of PVA1788 and PVA0588, 0.4 to 1.0 portion of the compound of nonionic emulsifying agent nonyl phenol polyoxyethylene alkyl ether and anion emulsifying agent alkyl sulphate with 2:1 mixture ratio, 0.2 to 1.0 portion of 35 percents oxydol with 1:1 mixture ratio, 0.05 to 0.4 portion of formol zinc sulphate, 0.1 to 0.5 portion of ferrous sulphate, 0.5 to 1.0 portion of regular dodeca-carbon thiol-alcohol, 0.05 to 0.35 portion of potassium phosphate, 0.1 to 0.5 portion of sodium bicarbonate and 45 to 55 portion of de-ionized water. With the adoption of latex polymerization, low-residual monomer VAE latex with solid content more than 65 percents is synthesized, which is used as binder to be applied in timber processing industry and packaging industry.

The invention relates to a preparation method of pure ferric phosphate, characterized in that: iron vitriol, phosphorus source as by-product of white titanium pigment are used as reactant and purificant and oxidant are added into the reactant and the reaction temperature is controlled at 25-100 DEG C and the reaction time is 0.5-10 hours, thus white ferric phosphate powder (FePO[4]2-4H[2]O) with 2-4 crystal water is obtained. The technological process has features of simple process, low production cost, high product purity, increased added value of ferrous sulfate as by-product of white titanium pigment and the product can be used as ceramic metal glaze-color glaze material and raw material for producing lithium iron phosphate as lithium ionization cell anode material.

The present invention discloses an efficient ferrous sulfide / biological carbon composite material and a preparation method thereof, and applications of the ferrous sulfide / biological carbon composite material in repair of heavy metal pollution water bodies. According to the present invention, biological carbon is adopted as a carrier, a ferrous sulfate solution and the biological carbon are mixed, sodium carboxymethyl cellulose is added as a stabilizer and a dispersant, a sodium sulfide solution is added to the system in a dropwise manner under the nitrogen protection, and vigorous stirring is performed to make the generated ferrous sulfide nanoparticles uniformly grow on the surface of the biological carbon, such that the disadvantage that the ferrous sulfide nanoparticles are easily agglomerated is substantially improved so as to increase the effective contact area between the ferrous sulfide nanoparticles and the pollutant, and the adsorption ability and the oxidation reduction ability of the ferrous sulfide and the biological carbon are integrally combined so as to improve the pollutant removal ability; the preparation method has advantages of simple and rapid process, low production cost, environmental protection and no secondary pollution; and the efficient ferrous sulfide / biological carbon composite material can strongly repair the Cr(VI) polluted water body, can effectively reduce the biological toxicity of the Cr(VI) on wheat seeds, and has wide application prospects in the fields of repair of organic pollution and inorganic pollution in environments.

The invention discloses a special saline-alkali-soil improvement fertilizer prepared by modification with flue gas desulfurization gypsum and a preparation method thereof. The special improvement fertilizer comprises the following components in parts by weight: 40-80 parts of flue gas desulfurization gypsum, 1-3 parts of citric acid, 0.5-1.5 parts of magnesium sulfate, 1-5 parts of aluminum sulfate, 1-5 parts of ferrous sulfate, 10-30 parts of weathered coal, 10-20 parts of cattle manure or chicken manure, 1-5 parts of urea, 0.5-2.5 parts of ammonium sulfate, 1-3 parts of potassium sulfate, 1-3 parts of monoammonium phosphate, 0.1-0.5 part of zinc sulfate, 0.1-0.5 part of manganese sulfate and 3-10 parts of bentonite. The fertilizer is reasonable in design, provides an effective solution for inland saline-alkali soil of China, and has higher practical value and wide market prospects.

The invention discloses a preparation method of a supported FeOOH catalyst, and an electro-Fenton waste water treatment system. The invention belongs to the technical field of waste water processing. The invention is characterized in that active carbon is utilized as a carrier and ferrous sulphate is utilized as a precursor; through dipping, ethylene diamine tetraacetic acid and ammoniacal undergo an oxidation reduction reaction with active carbon and ferrous sulphate in the presence of oxygen to produce active carbon supported objects and then the active carbon supported objects are washed by deionized water and then are placed in a vacuum oven to be dried at a temperature of 40 to 50 DEG C for 10 to 12 hours to form a supported FeOOH catalyst; active components of the supported FeOOH catalyst comprise alpha-FeOOH and gamma-FeOOH; and under an applied electric field, an out-phase electro-Fenton oxidation system is composed of the supported FeOOH catalyst and hydrogen peroxide and canremove efficiently organic pollutants in waste water. The invention has effects and advantages that an out-phase catalyst can be separated from waste water easily and recycled, and an out-phase electro-Fenton oxidation system can operate in a neutral medium without need of PH adjustment and generation of chemical sludge.

The invention discloses an antitranspirant foliar fertilizer and a preparation method thereof. The antitranspirant foliar fertilizer comprises the raw materials of copper sulfate, ethylene diamine tetraacetic acid, monopotassium phosphate, zinc sulfate, ferrous sulphate, manganese sulphate, ammonium molybdate, composite rare earth, boric acid, sodium dodecyl sulphonate, urea, fulvic acid, hexanoic acid 2-(diethylamino) ethyl ester, compound amino acid, magnesium sulfate, calcium nitrate, ethylene diamine tetraacetic acid, microbial agent, azone and ammonia water. The antitranspirant foliar fertilizer provides nutrient elements and microbial agents which are required by the growth of plants, the rare earth and amino acid and other beneficial elements, can promote the growth of the plants, improve the yield, the quality, the stress resistance of the plants and the absorbing and operating capabilities on trace elements, simultaneously can effectively reduce the transpiration of the plants and is applied to afforesting in arid regions.

The invention belongs to the field of feeds, specifically to a feed for grass carp. The feed for grass carp comprises the following components by weight: 10 to 40 parts of crude protein, 40 to 80 parts of corn gluten meal, 20 to 50 parts of peanut meal, 10 to 30 parts of vinasse, 1 to 4 parts of dicalcium phosphate, 5 to 15 parts of yeast powder, 1 to 5 parts of salt, 5 to 20 parts of a premix for grass carp, 2 to 8 parts of fish bone meal, 2 to 7 parts of an ecological preparation, 10 to 20 parts of cottonseed meal, 2 to 8 parts of housefly larva powder, 10 to 20 parts of wheat shorts, 2 to 7 parts of mineral elements, 2 to 9 parts of plant oil, 1 to 5 parts of a compound enzyme preparation, 1 to 4 parts of ferrous sulphate, 1 to 15 parts of tenebrio molitor, 5 to 15 parts of a Chinese herbal medicine additive and 2 to 8 parts of amino acid. Through feeding of grass carp with the grass carp feed containing plant extracts, feeds are saved, the quantity of reagents is reduced, feeding cost is lowered down, and grass carp breeding benefits are improved; the Chinese herbal medicine additive has a medicinal function, can improve immunity of grass carp, reduce generation of diseases in the process of breeding and decrease usage of medicaments and enables safe and reassuring grass carp to be produced.

The dry-land planting agent refers to a kind of droughtresistance crop's nutrient specific to the growth of the plants. The invention is composed of the following components: AU absorber with super strength, carbamide, potassium dihydrogen phosphate, ammonium dibasic phosphate, calcium nitrate, bitter salt, ammonium molybdate, zinc sulfate, manganese sulfate, boracic acid or borax, ferrous sulphate, fulvic acid potassium, disodium edta, fatty alcohol polyethenoxy ether, 6- benzyl aminopurine, melissyl alcohol, potassium naphthylacetic acid, indolebutyric acid, gibberellin, santobrite, potassium sorbate, ketotriazole, penta azole alcohol., thiram, carbendazim, acid brilliant scarlet, humic acid, bluestone, potassium permanganate, potassium chloride, polyethylene glycol, bentonite or water. The invention is featured by sopping, molding moisture, molding fertilizer, withering resistance, disinsection, sterilization, strengthening the effects of the pesticide, accelerating the burgeon of the plants, increasing roots, innocuity, no pollution and low cost.

The invention discloses a biological pesticidal organic fertilizer and a preparation method thereof. The biological pesticidal organic fertilizer is prepared from the following raw materials in parts by weight: 40-50 parts of pig manure, 20-30 parts of tea seed pulp, 10-15 parts of coffee grounds, 8-12 parts of paulownia sawdust, 5-10 parts of phosphogypsum, 4-8 parts of corn cob, 5-10 parts of pepper seed cake, 10-15 parts of mushroom dreg, 8-12 parts of wheat bran, 15-20 parts of bentonite, 10-15 parts of opoka, 2-3 parts of ferrous sulfate, 1-2 parts of manganese sulfate, 3-5 parts of humic acid, 1-2 parts of chinese tallow tree root and bark, 2-3 parts of sophora alopecuroides, 1-2 parts of stemona, 1-3 parts of Artemisia annua, 1.5-2.5 parts of ailanthus leaf, 2-3 parts of derris and 1-2 parts of Radix Euphorbiae Ebractealatae. The organic fertilizer disclosed by the invention has multiple effects of providing nutrients, improving the soil structure, preventing and treating pests and diseases and the like, can promote the crops to quickly grow, enhances the stress tolerance of the crops, can have favorable preventing and treating effects on nematodes and soil insects, reduces or avoids use of chemical pesticides, enhances the soil fertility, regulates the ecological equilibrium of soil, improves the quality of agricultural products, has no chemical residues, and implements yield increase and income increase of agricultural products.

The invention discloses a synthesis method of a polycarboxylic superplasticizer. The raw materials for synthesis of the polycarboxylic superplasticizer are APEG of two types of molecular weight (respectively 500-1000 and 1600-2200), MPEGMA of two types of molecular weight (respectively 800-1400 and 2000-2500), maleic anhydride, acrylic acid, alkylphenol ethoxylate, hydrogen peroxide, ascorbic acid, ferrous sulfate, sodium persulfate, sodium hydroxide and deionized water. Since the APEG and MPEGMA of different types of molecular weight are simultaneously adopted as crossing branch chains, the invention not only has a high water-reducing rate, but also maintains good water-reducing rate, has good adaptability to sands and stones with high clay contents, and improves the strength of concrete, Compared with the prior art, the invention has the advantages that the raw materials of the product are easily available, the synthesis process can be easily controlled, the performance of the reaction product is stable, and the cost is reduced by 5-10 percent.

The invention relates to a passivator for remediation of farmland soil subjected to combined pollution of heavy metals such as cadmium, chromium, copper and nickel, and a preparation method and a use method of the passivator. The passivator is prepared from a passivator A and a passivator B, wherein the passivator A is prepared from montmorillonite, kieselguhr, sepiolite, illite and ferrous sulfate; the passivator B is prepared from periclase, calcite, calcium magnesium phosphate fertilizer, plant ash and calcium hydroxide; the passivator is suitable for the farmland soil subjected to the combined pollution of the cadmium, the chromium, the copper and the nickel, and is prepared from the multiple different porous absorption materials with specific contents and a passivation material; the components of the passivator have complementary advantages, and the principles such as absorption and stabilization are combined; the combination forms of the heavy metals are effectively enhanced by ion exchange, complexing, chelating and adsorption methods, and the combination forms are converted into more stable strong organic binding states and residue states, so that the effective state contents of the heavy metals in the farmland soil are effectively reduced, and the passivation effect is long-acting and stable; therefore, the passivator has a great repair effect for the farmland soil subjected to combined pollution of the cadmium, the chromium, the copper and the nickel.

The invention discloses a plant foliar fertilizer which comprises the following chemical fertilizer raw materials: 30 urea containing 50% of K2O, 15 calcium superphosphate containing more than 15% of P2O5, 20 potassium sulfate containing 50% of K2O, 1 magnesium sulfate, 0.6 ferrous sulphate, 1 zinc sulfate, 20 ammonium sulfate containing 21% of N, 0.5 manganese sulfate, 0.5 ammonium molybdate, 0.1 sodium borate, 0.5 citric acid, 0.5 ammonia carboxyl mixture, 0.5 wetting agent and 0.1 hydrogen peroxide. The plant foliar fertilizer has the advantages of no pollution, lodging-resistant property, freezing resistance, disease and pest resistance, low cost and good effect, and can improve the yield of crops and the quality of products.

The invention relates to a charcoal loading nanometer zero-valent iron activated sodium persulfate system and preparation and application thereof. Firstly, biomass is burned into charcoal, the charcoal is cleaned and dried after being acidized, and added into a ferrous sulphate solution taking absolute ethyl alcohol and water as a dispersing agent for being stirred fully, then a sodium borohydridesolution is added dropwise to generate the charcoal loading nanometer zero-valent iron; lastly, a composite material prepared with pure water and ethyl alcohol is washed and dried, the obtained charcoal loading nanometer zero-valent iron activated material is placed in the solution, after ultrasonic treatment is carried out, the material is uniformly dispersed in the solution, at the moment, a sodium persulfate solution is added, the mixture is mixed evenly to obtain the charcoal loading nanometer zero-valent iron activated sodium persulfate system. The oxidation system is used for reducing waste, polluted surface water and target pollutants in the underground water, and the problems of the agglomeration and lower activity of sodium persulfate during the use of the nanometer zero-valent iron are solved.

The invention relates to a treatment method of nitrochlorobenzene production wastewater, in particular to the treatment method of organic chemical wastewater. The treatment method comprises the following steps: 1. the waste water enters a stream stripping tower for stream stripping treatment after successively carrying out indirect heat-exchange temperature rise with effluent from the tower kettle of the steam stripping tower and the steam on the tower top of the steam stripping tower, and the steam on the tower top of the steam stripping tower and rich in nitrochlorobenzene is directly reused for the production technology after indirect heat-exchange cooling; 2. the pH value of the effluent from the tower kettle of the steam stripping tower is regulated to be acid, wherein the effluent from the tower kettle of the steam stripping tower is subjected to the indirect heat-exchange cooling by utilizing the nitrochlorobenzene production wastewater; 3. the catalytic oxidation treatment is carried out on the wastewater with the pH value of being acid, an oxidant is hydrogen peroxide, and a catalyst is ferrous sulphate; 4. the pH value of the effluent of the catalytic oxidation treatment is regulated to be close to neutrality and then the effluent of the catalytic oxidation treatment is precipitated and decomposed; and 5. the slag-water separation is carried out on the reaction effluent, the separated slag is comprehensively utilized, and the water reaches emission standard and can be discharged. The method has the advantages that the chromaticity and the COD (Chemical Oxygen Demand) of the wastewater, and the content of characteristic pollutants can be effectively reduced; the wastewater reaches emission standard and can be discharged.

The invention discloses a machine-applied controlled-release fertilizer special for winter wheat and a preparation method thereof. The machine-applied controlled-release fertilizer special for the winter wheat is prepared from the following raw materials: by weight, 30-35 parts of ammonium bicarbonate, 10-12 parts of urea, 15-18 parts of monoammonium phosphate, 4-6 parts of potassium chloride, 1-2 parts of ammonium molybdate, 2-3 parts of manganese sulfate, 1-2 parts of borax, 1-2 parts of ferrous sulphate, 4-6 parts of bamboo charcoal powder, 3-4 parts of meerschaum powder, 1-2 parts of barite powder, 1-2 parts of silane coupling agent KH550, 2-3 parts of humic acid, 1-2 parts of waste engine oil, and proper amounts of chlorinated paraffin and wintergreen oil. In the formula of the machine-applied controlled-release fertilizer special for the winter wheat, the bamboo charcoal powder and the meerschaum powder can absorb trace elements and play a slow-release effect. The urea is melted and coats the trace elements, so that the urea and the trace elements can be simultaneously released so as to benefit synergy among fertilizers. The waste engine oil coats the trace elements so as to play the slow-release effect. When the fertilizer is applied, compared with a traditional fertilizer, the machine-applied controlled-release fertilizer special for the winter wheat can be used in single-dose application without additional fertilization. Wheat yield can be increased by 16% to 28%, and soil fertility also can be improved.

The invention discloses nanoscale zero-valent iron stable in air, wherein nanoscale zero-valent iron is taken as a core, and silicon dioxide is covered on the surface thereof. The preparation method comprises the following steps of: (1) adding isopropanol aqueous solution in ferrous sulphate, charging nitrogen, mechanically stirring for 15 to 30 minutes, dropping sodium borohydride solution containing sodium hydroxide while stirring, after that, adding polyethylene glycol, and continuing to react for 0.5 to 1 hours while stirring; (2) adding tetraethoxysilane in the solution, controlling the molar ratio of the sodium hydroxide to the sodium borohydride in the solution to be in a certain range, continuously stirring, and continuously charging nitrogen, after the reaction is finished, staying, vacuum-filtrating, then washing by absolute ethyl alcohol and deionized water respectively; and (3) vacuum-drying the obtained nano-iron to obtain the stable nanoscale zero-valent iron. The nanoscale zero-valent iron has a good inoxidizability in air; and the whole reaction process has the advantages of low material price, simple device, convenient operation, and easily-controlled and safe process condition.

Corrosion-inhibited fire retardant compositions and methods of making and using the same are provided. The corrosion-inhibited fire retardant compositions are comprised of at least one fire retardant component, at least one biopolymer having a particle size diameter of less than about 100 microns, and a corrosion inhibiting system. The corrosion inhibiting system is comprised of at least one corrosion inhibiting compound selected from a group of compounds including azoles, insoluble ferric pyrophosphate, soluble ferric pyrophosphate, ferrous oxalate, ferric citrate, ferrous sulfate, ferric ammonium citrate, soluble ferric orthophosphate, insoluble ferric orthophosphate, ferric ammonium oxalate, ferric ammonium sulfate, ferric bromide, ferric sodium oxalate, ferric stearate, ferric sulfate, ferrous acetate, ferrous ammonium sulfate, ferrous bromide, ferrous gluconate, ferrous iodide, ferric acetate, ferric fluoroborate, ferric hydroxide, ferric oleate, ferrous fumarate, ferrous oxide, ferric lactate, ferric resinate and any combination thereof. In a specific embodiment, the corrosion-inhibited fire retardant composition includes a xanthan biopolymer.

The invention provides an amino acid foliar fertilizer, comprising the following materials in percentage by mass: 30 to 50 percent of plant amino acid, 1 to 5 percent of compound sodium nitrophenolate, 15 to 25 percent of urea, 5 to 10 percent of ferrous sulphate, 5 to 10 percent of borax, 3 to 5 percent of cupric sulfate, 0.1 to 1 percent of ammonium molybdate, 1 to 2 percent of manganese sulfate, 4 to 8 percent of zinc sulfate, 10 to 20 percent of organic silicon, and the balance water. The amino acid foliar fertilizer has obvious effects of exciting activity of enzyme in crops, improving the photosynthetic efficiency of the crops, accelerating nutrition absorption and operation inside the crops, increasing the content of chlorophyll, improving stem substance accumulation and sugar content, improving crop quality, and enhancing crop drought resistance, disease resistance and immunity and the like, can be absorbed by leaves, stems and roots of various commercial crops, such as Chinese cabbages and other vegetables, so as to lead the crops to be higher, and has remarkable effect in enhancing the performances of root growth, sprouting, seedling strengthening, flower promoting, fruit swelling, fruit protecting and other aspects for the crops.

The invention discloses a mulberry compound fertilizer, which is prepared from the following raw materials in parts by weight: 20-23 parts of urea, 24-28 parts of calcium superphosphate, 12-15 parts of humic acid, 13-16 parts of kieselguhr, 8-10 parts of tea shell powder, 3-4 parts of azedarach powder, 2-3 parts of garlic powder, 4-5 parts of carboxymethyl starch, 4-5 parts of calcium bicarbonate, 3-4 parts of ammonium molybdate, 5-6 parts of ferrous sulfate, 2-3 parts of copper sulfate, 1-2 parts of guar gum, 1-2 parts of zirconium oxide, 1-2 parts of methylcellulose, 3-4 parts of EM (effective microorganism) fungicide, 4-6 parts of film coating agent, and proper water. The fertilizer disclosed by the invention has the effects of inorganic and organic fertilizers; the nutrient elements required in the growth and development processes of mulberry can be reasonably configured, the growth requirements of the mulberry are met; the yield and the quality of the mulberry are improved, and the prepared fertilizer is not only quick to take effect, but also can slowly release the elements in the fertilizer; the property of the soil can be effectively improved by the added fungicide, and the utilization rate of the fertilizer is increased.

The invention relates to an ecological organic fertilizer and a preparation method thereof, which belongs to the technical field of preparation of the ecological organic composite fertilizer. The method comprises the following steps: 1)weighting a base material and a nutrition material of the ecological organic fertilizer according to weight parts, wherein the base material comprises peat, poultry dung, bean dregs, wheat bran, alfalfa powder, oil cake, 25-40 parts of sugarcane branch and vinasse; the nutrition material comprises composite bacterial classification, urea, potassium ore powder, ground phosphate rock, calcium chloride, calcium chloride, natural potash magnesium sulphate, vermiculite powder, kaolin, slaked lime, borax, sodium tripolyphosphate, a silane coupling agent KH550, sodium selenite, white copperas zinc sulfate, ferrous sulphate and a proper amount of water; 2)preparing the base material; 3)preparing the nutrition material; 4)performing secondary fermentation; and 5)drying and granulating. The preparation method of the present invention is simple and easy to popularize, the crops are easily absorbed, fertilizer efficiency time is long, short / long-term nutrient requirements of plants can be completely satisfied, and plant quality can be effectively improved.

The invention relates to a harmless extraction process for poultry manure prepared agricultural biochemical fulvic acid. The process includes an acid dissolution extraction technology of fulvic acid and a Fenton oxidative degradation technology. The acid dissolution extraction technology of fulvic acid consists of: making a suspending solution from a group A acid dissolution extracting agent that has a pH value of less than or equal to 2 and contains 0.1%-2.5% of ferrous sulfate as well as 1%-2.5% of sulfuric acid and fermented poultry manure in a ratio of 1:5-15, and conducting stirring for 30min-60min at room temperature, thus obtaining dissolved fulvic acid containing a chelate of an organic acid and ferrous ions. The Fenton oxidative degradation technology consists of: mixing a material subjected to the acid dissolution extraction with a group B acid dissolution extracting agent that has a pH value of less than or equal to 2 and contains 15% of hydrogen peroxide and 1%-2.5% of sulfuric acid, controlling the content of hydrogen peroxide in the material at 0.5%-3.0%, when the two groups of materials are mixed, catalyzing the hydrogen peroxide with the ferrous ions, thus generating a Fenton oxidative degradation reaction. Therefore, residual antibiotics, hormones, pesticides and pathogenic bacteria, rot-causing bacteria and helminth eggs can be rapidly degraded and their hazards can be eliminated, thereby reaching a harmless extraction effect.