36results about How to "PH neutral" patented technology

The present invention discloses multiphase transfer method for treating waste water with heavy metals in several forms. Multiphase transfer method including replacement, conversion, etc. is adopted to treat waste water with free mercury and compounds of Hg, Pb, Cr, Mn, Zn, Cd, As, Cu, etc. through flocculation, adsorption, etc. The treated water may be reused for closed loop circulation to eliminate water pollution and save water resource. The said water treating technological process may be used in the comprehensive treatment engineering of waste water with complicated heavy metal form. The present invention also discloses the apparatus for the said process.

The invention discloses carbon nano fiber paper and a preparation method thereof. The carbon nano fiber paper disclosed by the invention is combined by carbon nano fibers by means of the Van der Waals force and the cross linking of the carbon nano fibers, and the carbon nano fibers comprise one or more of multi-wall carbon nanotubes, single-wall carbon nanotubes, solid carbon nano fibers or activated carbon fibers. The preparation process of the carbon nano fiber paper disclosed by the invention comprises the steps of dispersing, filtering, roasting and rolling. No dispersing agent is needed in the preparation process, and the carbon tubes and the carbon fibers need no functionalized treatment. The carbon nano fiber paper prepared in the invention has the advantages of large specific surface area, good electrical conductivity and high air permeability; the materials are recyclable, so that no waste is generated; and since the process is simple, mass production is liable to achieve.

The invention relates to a composite microbial agent for the rot decomposition of straw and an application method thereof. The composite microbial agent for the rot decomposition of the straw is prepared from, by the number of effective viable bacteria, 3-30 parts of bacillus subtilis, 50-99 parts of bacillus amyloliquefaciens, 1-5 parts of trichoderma asperellum and 1-15 parts of trichoderma longibrachiatum Rifai. The application method of the composite microbial agent for the rot decomposition of the straw comprises the following steps of (1) harvesting and pulverizing the straw; (2) scattering and flat spreading the straw; (3) turning up the soil/ conducting rotary tillage; (4) conducting irrigation and soaking; (5) dissolving and spraying the microbial agent; (6) 14-30 days after treatment, completing the rot decomposition of the straw. The composite microbial agent for the rot decomposition of the straw and the application method thereof have the following advantages that the rotof the straw is accelerated; the content of organic matter in the soil is increased; the pollution and fermentation barriers are reduced; the cost is reduced.

The invention relates to the technical field of daily cosmetics, in particular to a color-protecting laundry detergent. The components and their mass fractions of the color-protecting clothing liquid are: 0.01-0.05% of chitin, 1-5% of fluorocarbon surfactant, 5-8% of sodium fatty acid methyl ester sulfonate, and 1-5% of potassium soap , sodium polyacrylate 0.5-1%, ethylene glycol 0.5-5%, propylene glycol 0.02-0.05%, sodium chloride 0.02-0.08%, sodium citrate 0.05-1%, essence 0.01-0.05%, and the balance is deionized water. The color-protecting laundry detergent of the present invention contains a fluorocarbon surfactant, which can form a film on the surface of the fabric to reduce the solubility of the dye, and sodium chloride can improve the color fixation rate of the dye, thereby achieving the effect of color protection and anti-color crossover; Using compound surfactant, it has excellent decontamination ability, neutral pH value, mild and non-irritating to the skin.

The invention provides red luminescent fluorescent powder and a preparation method thereof. The chemical general formula of the red luminescent fluorescent powder is M1-xAyAl2-ySiN4: xEu, wherein, M is at least one of Mg, Ca, Sr, Ba, Y, and Sc, A is at least one of Gd and Ga, x is not less than 0.01 and not more than 0.2, and y is not less than 0 and not more than 1. The preparation method of the red luminescent fluorescent powder comprises the following steps: a) weighing raw materials, namely M, A, Al, Si and Eu according to the stoichiometric ratio of various elements in the chemical general formula M1-xAyAl2-ySiN4: xEu, and putting the weighed raw materials into an electric arc smelting furnace for smelting to form an alloy; and b) crushing and ball-milling the alloy obtained in the step a), then performing high-temperature sintering in a protective atmosphere, cooling, then taking out, washing and drying to obtain the red luminescent fluorescent powder. The red luminescent fluorescent powder provided by the invention is low in preparation cost, and the preparation process is simple and easy to control.

A process for treating the ash-contained sewage generated by power-and-heating plant features that the red mud contained back water generated in preparing alumina is mixed with said sewage to decrease the content of suspended substances.

The invention discloses a method for detecting the chlorine ion content of sea sand. The detection method comprises the following steps: drying naturally humid sea sand to constant weight, performing sieving, adding deionized water, performing stirring, performing heating, performing standing, and performing filtering to obtain a chloride ion dissolution solution of the sea sand; adding a phenolphthalein reagent into chloride ion dissolution liquid of sea sand, and adjusting the dissolution liquid to be neutral by using an HNO3 solution or a NaOH solution; then adding an H2O2 solution into the dissolved-out liquid to remove the influence of sulfur ions; continuously adding a potassium chromate solution as an indicator, and determining the content of chloride ions in the dissolution solution by adopting a silver nitrate titration method. According to the detection method, chloride ions in the sea sand can be fully released, the influence of factors such as pH values and sulfur ions in the sea sand on the detection result is eliminated, the detection precision is improved, the detection result is more accurate and reliable, and a reliable basis is provided for the use of the sea sand in the engineering field.

The invention relates to a waste gas treatment technology, and aims to provide a method for efficient carbonation and harmless treatment of waste incineration fly ash. Comprising the following steps: uniformly mixing the waste incineration fly ash with water, feeding flue gas containing carbon dioxide into a particle filter, and then feeding filtered gas into a microbubble generator; the method comprises the following steps: feeding microbubbles containing carbon dioxide into a reactor, and carrying out a fly ash carbonation reaction under stirring and ultrasonic conditions to obtain carbonated wet fly ash; and after standing, carrying out drying treatment to obtain blocky carbonated fly ash. The method disclosed by the invention is low in treatment cost and does not need to add any additive; operation is simple and convenient, maintenance cost is low, operation is safe, and high temperature and high pressure are avoided; according to the method, the waste incineration fly ash is subjected to harmless treatment while carbon dioxide is captured, heavy metal is solidified, the alkalinity of the fly ash is reduced, the pH value of a reacted aqueous solution tends to be neutral, and the concentration of the heavy metal reaches the underground water discharge standard.

The invention discloses a preparation process of a high-stability water-based paint. The high-stability water-based paint is prepared from the following components in parts by weight: 80 to 120 partsof water-based resin, 7-12 parts of nano-calcium carbonate, 3-9 parts of a coalescing agent, 0.5-1.5 parts of a preservative, 8-12 parts of talcum powder, 0-24 parts of a pigment, 0.4-1.2 parts of a thickening agent, 0.2-0.6 part of a dispersing agent, 0.1-0.6 part of a defoaming agent and 40-60 parts of deionized water. The preparation method is scientific and reasonable in structure and safe andconvenient to use, the prepared water-based paint is optimal in storage stability, precipitation and layering are not likely to occur after long-time storage, the freeze-thaw stability is optimal, flocculates cannot occur after freezing and thawing, the PH value of the prepared water-based paint is closer to be neutral, and the corrosivity is lower.

The invention discloses a high fertilizer rate microbe soil amendment used for tubers, its preparation method and its application method. The method comprises the following steps: mixing 0.5-0.9% of petrochemical powder containing more than 25% of silicon and 5.6-9.6% of amino acid powder, placing in a workshop for fermenting for 3 days at the temperature of more than 10 DEG C; mixing the above mixed semi-finished product with 11.8-13.6% of dihydric phosphate, 22.8-31.7% of sylvite and 15.4-22.3% of ammonium sulfate in proportion and then stirring; fermenting a mixture in the workshop at the temperature of more than 10 DEG C for 15 days, completing the step when the acid and fragrant smell (such as smoked plum flavor) is generated; and finally mixing the fermented mixture with 12.8-16.6% of peat, 4.8-7.5% of shell powder containing calcium carbonate and 8.7-15.4% of serpentine powder in proportion and then stirring to finish the production. The soil amendment uses a special microbe capable of decomposing a phosphatic compound to decompose the above phosphatic compound, and has the advantages that 1)original loose and soft performances as well as vitality of farmland can be thoroughly recovered, and 2) peasant can get profit, the agricultural products with high quality can be eaten by consumers.

The invention provides a mineralized plant nutrient solution as well as a preparation method and application thereof, and belongs to the technical field of microelement fertilizer extraction. The micalex and the vermiculite are used as mineral raw materials, the micalex is rich in phosphorus, potassium, silicon, calcium, magnesium and iron elements and trace chlorine, manganese, molybdenum and zinc elements, and the vermiculite is rich in silicon, magnesium and iron elements; a sulfuric acid solution is used as an extracting solution of trace elements, on one hand, sulfuric acid can react with various metal ions in raw materials, the trace elements are extracted from micalex and vermiculite in the form of sulfate, and a stable sulfate solution is formed after the trace elements are passivated by sulfolobus acidocaldarius; when being used for irrigating saline-alkali soil plants, the plant photosynthesis can be enhanced, the nutrient absorption and utilization rate of crops is increased, the disease resistance and average quality of the plants are enhanced, and the yield of the plants is further increased; on the other hand, the residual free sulfuric acid can be used for transforming the saline-alkali soil, so that the salinity in the saline-alkali soil is reduced, and the pH value of the soil tends to be neutral.

The invention relates to a special purification device for gypsum preparation waste liquid. The special purification device comprises a casing, wherein an isolation layer is arranged between the casing and an inner cavity; the top of the inner cavity is provided with a first filtering screen; the first filtering screen is connected with a separator; the separator is fixed through a support frame;an outlet at the bottom of the separator passes through a fixing hole in the middle of the separation plate to extend onto a drying machine; a recovery box is arranged at the bottom of the drying machine; a liquid outlet is formed in the right side of the separator; the liquid outlet is connected with a filter device; the filter device comprises a protection case and a support frame; the protection case is fixed in the inner cavity through the support frame; a buffer layer is arranged inside the protection case; a filter core is arranged inside the buffer layer and is connected with the filter; a liquid conveying opening formed in the bottom of the filter is connected with a liquid inlet in the sterilization device; a second filter is arranged on the liquid conveying opening; the sterilization device is connected with a pipe fitting; the pipe fitting extends to the outer side of the casing. The special purification device has the advantages that the work precision is high; the structure stability is improved; the service life is prolonged; the purification efficiency is improved; the filtering effect is good; the environment friendliness is improved; the environment sanitation is reinforced.

The invention belongs to a bio-organic fertilizer containing humic acid and wormcast and a preparation method. The bio-organic fertilizer is prepared from the following raw materials: wormcast, a humic acid organic raw material, a chemical fertilizer, carbide slag, furfural residue and a microbial agent, wherein the chemical fertilizer is urea phosphate. The bio-organic fertilizer has the advantages of increase of soil organic matter content, improvement of soil, increase of fertilizer utilization rate, easily available raw materials, low cost, realization of industrialization and very wide application prospect.

Belonging to the technical field of daily detergents, the invention discloses an eco-environment-friendly healthy concentrated laundry powder and a preparation technology thereof. The eco-environment-friendly healthy concentrated laundry powder is composed of the following components by mass: 15-21 parts of alpha-sodium olefin sulfonate; 3-5 parts of glycerol; 8-15 parts of sodium carbonate; 8-15parts of sodium bicarbonate; 5-8 parts of citric acid; 1-3 parts of dodecyl glucoside; 1-3 parts of coconut oil powder; 25-37 parts of sodium chloride; 0.01-0.03 part of food-grade essential oil spice; and 0.005-0.008 part of a preparation liquid. The production process of the concentrated laundry powder does not discharge waste smoke or wastewater and causes no pollution to the atmospheric environment and water sources, wastewater dumped in the use process of the product provided by the invention can complete biodegradation within five days, and does not cause secondary hazard to the naturalenvironment. The unique instant dissolution technology is not affected by water temperature. The PH value is neutral, thus causing no stimulation and no injury to hands; the production materials adhere to food-grade raw materials, and are free of anhydrous sodium sulphate, sulfonic caustic soda, fluorescent brightener or other harmful substances.

The invention belongs to the field of metal material corrosion and protection, and relates to a B30 copper-nickel alloy compound corrosion inhibitor suitable for a strong acid medium and a preparationmethod thereof. The B30 copper-nickel alloy compound corrosion inhibitor suitable for the strong acid medium is prepared from a benzotriazole linseed oil amide derivative, carbamido linseed oil, sodium molybdate and isopropanol. The corrosion inhibitor has the following advantages that on the one hand, the benzotriazole linseed oil amide derivative, as a main agent of the corrosion inhibitor, haswide sources and is environmentally friendly; the production process is simple, and purification postprocessing of products is not required; and on the other hand, through compound use with other reagents, uniform corrosion and corrosive pitting of white copper B30 materials can be inhibited, and corrosion inhibition efficiency in the strong acid corrosive medium is over 98%.