97results about How to "No need to add" patented technology

A recycling treatment method for feces and wastewater in a large-scale livestock and poultry breeding farm includes the following steps: (1) pre-treating the feces and wastewater in the large-scale livestock and poultry breeding farm in a pretreatment unit to form slurry; (2) feeding the slurry into an energy recovery unit, and performing solid anaerobic digestion in a solid anaerobic reactor to obtain an energy gas, methane; (3) performing solid-liquid separation to the digested slurry to generate wastewater, which is then fed into a UASB reactor to perform further anaerobic fermentation to remove organic pollutants from the wastewater; (4) feeding the treated wastewater into a nitrogen and phosphorus removal unit to perform nitrogen and phosphorus removal treatment; (5) separating and purifying a precipitate, which is generated in the nitrogen and phosphorus removal unit and mainly includes magnesium ammonium phosphate, to obtain an organic fertilizer additive, wherein the nitrogen removal process is autotrophic nitrogen removal and can reduce aeration quantity by 62.5% without addition of any carbon sources, thus saving large quantity of operation cost; and (6) feeding the treated wastewater into a deep-treatment unit to remove bio-refractory substances and disinfect the wastewater so as to finally reach emission and recovery standards of wastewater.

This invention relates to electroconductive liquid alloy, the design and method for preparing the room temperature liquid and electroconductive alloy GalnSn and GalnSnAg. A metal with its purity being greater than 99.99% is selected and thein is smelted to produce the main alloy Galn. And then, Sn(or Sn and Ag) is (are) added into above mentioned Galn to produce GalnSn or GalnSnAg alloy. The product can be used in fields such as: oral surgery, electronics material and refrigeration system.

The invention discloses a high-salt high-alkali medium-low-level radioactive liquid waste cement solidified body which is composed by mixing the following components: high-salt high-alkali medium-low-level radioactive liquid waste and, solidification material, water glass and cellulose ether, wherein the high-salt high-alkali medium-low-level radioactive liquid waste to the solidification material is 0.55-0.75: 1 in mass proportion; the modulus of the water glass is 2.5-3.5 based on Na2O in the water glass and the mass of the solidification material is 1-3% of the mass of the water glass ; the mass of the solidification material is 0.05-0.5% of the mass of the cellulose ether; the component mass percent of the solidification material is as follows: 20-40% of low-heat Portland cement, 15-50% of slag powder, 15-30% of coal ash, 5-15% of zeolite and 5-15% of attapulgite; and the cement solidification body with various properties meeting the requirements is obtained by carrying out normal-temperature maintenance on the mixed slurry which obtained by mixing and stirring. The high-salt high-alkali medium-low-level radioactive liquid waste cement solidified body is suitable for the solidification of the medium-low-level radioactive liquid waste, which has the total salt concentration being 100-400g/L, the pH value being larger than 13 and the nuclide being 90Sr or/and 137 Cs.

The invention provides a wet-mixed mortar additive. The additive has low cost, can be added in an autoweighing manner, is used for wet-mixed mortar, and has good water-retaining property and delamination degree of mortar, less loss in the range of open time, high adhesive strength, and good construction workability. The wet-mixed mortar additive includes: by mass, sodium polyacrylate 5%-15%, air entraining agent 5%-15%, cellulose ethers thickening water-retaining agent 10%-20%, sodium alginate 5%-10%, polyoxyethylene 3%-10%, retarder 5%-20%, xanthan gum 3%-8%, and the balance maltodextrin, wherein the molecular weight of sodium polyacrylate is more than 30 million, and the molecular weight of polyoxyethylene is more than 2.5 million. The wet-mixed mortar additive is powder, and the mixing amount is 0.05%-0.10% of mortar gel material using amount. The wet-mixed mortar additive can be dissolved in water, and can be diluted to a liquid with concentration of 1.5%-2.0% at mixing plant site to be added in an autoweighing manner.

The invention relates to a short-range denitrification/dephosphorization device and method based on sludge side pretreatment, belonging to the field of sewage treatment. The device comprises a municipal sewage raw water tank, a denitrification/dephosphorization reactor, an intermediate water tank, a short-range nitration reactor, a first sludge pretreatment reactor and a second sludge pretreatment reactor. The method comprises the following steps: municipal sewage enters the denitrification/dephosphorization reactor, sludge subjected to FNA pretreatment is added, and microbes convert organic matters in raw water and pretreated sludge into PHAs; the sewage enters the short-range nitration reactor to perform short-range nitration; and on the basis of sludge side pretreatment, part of surplus sludge is subjected to FNA treatment and flows back into the reactor to inhibit the propagation of nitrite oxidizing bacteria, thereby implementing and maintaining the short-range nitration of the system stable. The sewage subjected to short-range nitration is synchronously denitrified and dephosphorized. The method quickly and stably implements the short-range denitrification/dephosphorization, saves the carbon sources, reduces the sludge amount, and lowers the sewage treatment energy consumption.

The invention relates to a method for improving the strength of wastepaper fibers based on nanometer microcrystalline cellulose. The method comprises the following steps: preparing the nanometer microcrystalline cellulose and a wastepaper pulp; taking a certain amount of the pulp, adding a proper amount of water, sequentially adding calcium carbonate, a cationic polyacrylamide solution and a nanometer microcrystalline cellulose suspension, and defibering in a GBJ-A fiber standard dissociator; shaping the defibered pulp in the shaping position of a ZQJ1-B-II paper handsheet former to obtain wet paper; and transferring the wet paper to a position between two dry cloths, carrying out a squeezing technology to remove a certain amount of water, and carrying out vacuum drying at 105DEG C for 15min to obtain dry paper. The method has the advantages of simple process, no need of arrangement of any devices, and easy operation control, and is of great guiding significance to efficient application of wastepaper fibers and enterprise production adopting wastepaper as a raw material.

The invention discloses high-barrier double-bond functionalized graphene oxide/polyethylene film and a preparation method thereof; the high-barrier double-bond functionalized graphene oxide/polyethylene film comprises double-bond functionalized graphene oxide component; the preparation method comprises the specific steps of mixing the double-bond functional group modified graphene oxide with low-density polyethylene resin at a certain ratio, and performing longitudinal stretching and then transverse stretching processes to prepare the graphene oxide/polyethylene composite film; the prepared double-bond functionalized graphene oxide/polyethylene film is simple to prepare, high in barrier property, adjustable in thickness and suitable for large-scale industrial preparation, and has a promising market prospect in food packaging, electronic encapsulating and other application fields.

The present invention provides an optimization method for a fertilizer wastewater treatment process. The original process comprises the following steps of: homogenizing and weight-equalizing fertilizer wastewater by an adjusting tank, pumping the wastewater from the adjusting tank to a primary aeration tank by a wastewater pump to remove part of COD (chemical oxygen demand) and toxic and harmful substances in the wastewater; and introducing the primarily settled wastewater into the front denitrification biological denitrogenation section and subsequent physical and chemical advanced treatmentsection of an anoxic tank/aerobic tank, and simultaneously adding high-efficiency microbial flora to a biochemical system. By optimizing the dissolved oxygen concentration of the primary aeration tank and nitrification liquid reflux ratio R and sludge reflux ratio r2 of the front denitrification biological denitrogenation section of the anoxic tank/aerobic tank, the optimization method improves the total nitrogen removal rate of the fertilizer wastewater from 41.1% to 66.7% (increased by 25.6%) and improves the COD and ammonia nitrogen removal rates to 95.8% and 98.8%, respectively.

The invention discloses a ceiling painter for decoration and construction, which comprises a support base, the upper end of the base has a support shaft, and a shaft hole is opened on the top of the support shaft, and a first spring is installed in the shaft hole. , a telescopic rod is inserted into the shaft hole, the bottom of the telescopic rod is inserted into the shaft hole and contacts the upper end surface of the first spring, and the top of the telescopic rod is rotated by a hinge structure to install two brackets. A painting roller is installed on the top of the support, and a material storage box is installed on the bottom support of the painting roller, paint is placed in the material storage box, and the bottom of the painting roller is submerged under the paint liquid level in the material storage box. The invention has a simple structure, is mainly used for painting the ceiling, does not need to touch the support frame to obtain height, and is safer to operate, and is independently equipped with a material storage box without adding materials, which is very convenient and greatly improves work efficiency.

The invention provides a method for immobilizing nutrients in pig breeding liquid dung. The method comprises the following steps: slowly adding calcium superphosphate into livestock liquid dung in anadjusting tank, continuously stirring the mixture, and adjusting the pH value of the livestock liquid dung to 6.0-6.5; wherein the mass of the added calcium superphosphate is 2-5.5% of the mass of thelivestock liquid dung. According to the method, the ammonia gas emission flux can be reduced by 43%-99% in the liquid dung storage process; the fertility of the liquid dung is improved, the number offecal coliform groups in the liquid dung meets the national standard requirement, after the calcium superphosphate is added into the liquid dung, the mixture is stored, and the pig breeding liquid dung is returned to the field for application, the crop yield can be increased, ammonia emission and nitrogen leaching loss in the farmland are reduced, and good ecological and environmental benefits are achieved.

The invention relates to the field of oil field waste water treatment and reinjection, in particular to the field of the catalytic treatment of the oil field polymer contained waste water reinjection. The catalyst used for the oil field waste water reinjection is one or a plurality of Fe oxide, Mn oxide or Cu oxide. The waste water firstly enters an aeration catalytic oxidation pond 1. A micropore aerator connected with an air compressor 4 is arranged on the bottom of the aeration catalytic oxidation pond 1; baffle plates with micropores are arranged above the aerator; and a catalyst layer is filled in each baffle plate. An aeration catalytic reaction is carried out through bottom aeration for 5 to 15 minutes in the aeration catalytic oxidation pond 1 in a gas water ratio of 0.3 to 1/1 at a temperature of between 40 and 65 DEG C. The outputted water is lifted into a catalytic reaction filter tank 2 by a water pump 5 for continuous catalytic oxidation and simultaneous filtration; and the water coming out of the pond 1 through the bottom enters a reinjection water tank 3. Two paralleled baffle plates with micropores are arranged in the catalytic reaction filter tank 2; each catalyst layer is filled in each baffle plate; the water feeding is carried out by the water pump; and the time of the catalytic reaction is 3 to 10 minutes. The catalytic reaction filter tank 2 is regularly backflushed by air and water for 1 to 2 times every day. The method has the advantages that the method has low running cost, no addition of a flocculant and a floating agent, and high practical application value; in addition, the air heterogeneous catalysis process has simple operation and moderate reaction conditions. The reaction is carried out at the normal temperature and normal pressure.

The invention belongs to the technical field of cables, in particular to an anti-bird pecking cable which includes a plurality of loose tubes distributed outside a reinforcer, a protective layer positioned outside the loose tubes, an inner protective layer positioned on the outer side of the protective layer and an outer sheath positioned on the outer side of the inner protective layer, wherein at least one optical fiber is contained in each loose tube. The cable is characterized in that an anti-bird pecking layer is arranged between the inner protective layer and the outer sheath. The anti-bird pecking layer is composed of the following raw materials: mediate density polyethylene, low density polyethylene or high density polyethylene, epoxy resin, ultra-fine steel fibers, glass fibers, silica fibers, EVA hot melt glue, an antioxidant, aluminum hydroxide, paraffin wax and carbon black master batch. The invention also discloses a method for producing the cable. The cable has the main benefits of being easy to produce, good in anti-bird pecking effect, and high in production speed, qualified rate of finished products, pressure resistance and impact resistance.

The invention provides a method for immobilizing nutrients in cow dung water with alum, which comprises the following steps: slowly adding the alum into the cow dung water in an adjusting tank, continuously stirring, and adjusting the pH value of the cow dung water to 5.5-6.5; wherein the addition amount of the alum is 1.2-3.5% of the mass fraction of the cow dung water. According to the invention, the alum is used as an additive, ammonia gas emission of the cow dung water can be effectively reduced, the nutrient immobilization effect is stable, the nutrient immobilization process flow of thecow dung water is simplified, ammonia gas emission and nitrogen leaching loss in the cow dung water are reduced, and the method has good ecological and environmental benefits.

The invention belongs to the technical field of cables, in particular to an anti-bird pecking cable which includes a plurality of loose tubes distributed outside a reinforcer, a protective layer positioned outside the loose tubes, an inner protective layer positioned on the outer side of the protective layer and an outer sheath positioned on the outer side of the inner protective layer, wherein at least one optical fiber is contained in each loose tube. The cable is characterized in that an anti-bird pecking layer is arranged between the inner protective layer and the outer sheath. The anti-bird pecking layer is composed of the following raw materials: mediate density polyethylene, low density polyethylene or high density polyethylene, epoxy resin, ultra-fine steel fibers, glass fibers, silica fibers, EVA hot melt glue, an antioxidant, aluminum hydroxide, paraffin wax and carbon black master batch. The invention also discloses a method for producing the cable. The cable has the main benefits of being easy to produce, good in anti-bird pecking effect, and high in production speed, qualified rate of finished products, pressure resistance and impact resistance.

The invention relates to a magnetizing and cracking device with a tail gas treatment device. The magnetizing and cracking device with the tail gas treatment device comprises a magnetizing and cracking device body and the tail gas treatment device, wherein the tail gas treatment device is connected with an exhaust opening of the magnetizing and cracking device body; the magnetizing and cracking device body is used for magnetizing and cracking organic garbage; the tail gas treatment device is used for treating tail gas generated by the magnetizing and cracking device body; the magnetizing and cracking device body comprises a charging wagon, a pushing plate, a feeding speed reducer, a lead screw, a feeding opening, a cracking cavity, a pipe, a magnetizing box, a sewage box and a feeding support; and the tail gas treatment device comprises a heat exchange water tank, a water storage box, a water pump, an alkaline water tank, a butterfly valve, an anoxic combustion barrel, an aerobic combustion opening, a cooling water tank, an activated carbon box, a chimney and a ternary catalyst container. All data of discharged tail gas meets the national standard requirement, particularly, the item of dioxin is remarkably lower than the national standard requirement, harmful gas does not need to be separated from main air flow, but is directly converted into harmless substances, secondary pollution is avoided, and heat can further be recycled for comprehensive utilization.

The invention provides a method for treating organic wastewater by an efficient peroxide flocculation technology. According to the method, hydrogen peroxide is generated by a carbon material cathode for efficiently generating hydrogen peroxide in situ; and iron is dissolved in the treatment process as a sacrificial anode for providing a catalyst for Fenton reaction, so that multiple effects of electric flocculation, electro-Fenton, electric oxidation and the like are achieved, and the treatment property of the organic wastewater is significantly improved. The method has the outstanding advantages of good treatment effect and low energy consumption, and is suitable for treatment of non-degradable organic wastewater in dyes, chemical engineering, medicines, membrane concentrate and the like; and the pH value does not need to be adjusted.