33results about How to "Resource utilization" patented technology

The invention relates to a micron-sized ultrafine iron powder preparation method and belongs to the technical field of preparation processes of metallic micron-sized ultrafine powder. The preparation method mainly includes: (1) taking scale oxide separated from the surface layer of incineration waste iron as a raw material, adding a certain amount of graphite reducing agent and appropriate zinc stearate as process control agents, and fully grinding and crushing the materials in a planetary ball mill, with the ball-milling process parameters being 3-5:1 in ball material ratio, 300-500r / min in ball-milling speed, 8-24h in ball-grinding time, so as to obtain iron oxide powder with the particle size being 32-1.2 microns; (2) after sieving of the iron oxide powder, heating the iron oxide powder in a tubular heating furnace, and feeding mixed gas of hydrogen and nitrogen in the volume ratio of 1:4 with the gas flow of 200-300ml / min prior to reduction at the temperature of 300-500 DEG C for 10-30 minutes so as to obtain iron powder with the particle size being 1 micron finally.

The invention relates to an in-site treatment method for leachate in a domestic garbage landfill. The invention relates to a method for treating the leachate of the municipal solid waste landfill in the landfill. First, a one-time off-site biological treatment is prepared to obtain a special garbage treatment layer for the methanogenic stage, and then use the anaerobic microorganisms in this layer and the middle uniform water distribution layer and surface water distribution layer in this layer to ensure that the leachate flows through This layer can evenly contact with the anaerobic microorganisms in it, so that the organic pollutants in the leachate can be converted into usable landfill gas. The invention can ensure uniform flow of leachate, stable and good treatment effect, save energy consumption of leachate transportation, investment and operation costs of water distribution pipe network facilities in each intermediate covering layer, and convert organic matter in leachate into flammable landfill Gas has good economic and social benefits. It can be widely used in valley-type or flat-type landfills, so that the leachate can be fully purified and utilized under the action of gravity or power through the special treatment garbage layer.

The invention discloses a culture medium used for peanut needle culture, wherein a seedling matrix served as a main raw material is matched up with calcium superphosphate and gels, and the culture medium is prepared by uniformly mixing the calcium superphosphate, the gels and the seedling matrix according to the mass ratio of 1: (4-110): (16-440). According to the culture medium, the problems that pods can not be formed by high peanut needles and the upper peanut needles can not be developed to be full pods can be solved, so that the propagation coefficients of peanut hybrid generation F1 and valuable and rare genetic resources can be improved, and the problem that the pods can not be formed by interspecies cross filial generations due to the fact plants grow flourishingly and the peanut needles are too far away from the ground can be solved.

The invention relates to application of a natural friendly sludge composite conditioning agent and a dehydration method for improving the sludge processing performance. First, sludge with a water content of 97 to 99% is condensed until the water content reaches 90 to 93%; secondly, cationic etherified starch, which accounts for 0.2 wt% to 1 wt% of the solid phase of sludge to be processed, is added into the condensed sludge, and then the mixture is stirred for five minutes; thirdly, chitosan, which accounts for 0.1 wt% to 1 wt% of the solid phase of the sludge to be processed, is added into the mixture, and then the mixture is stirred for ten minutes; fourthly, modified silicon-calcium slag with a rigid skeleton, which accounts for 10 wt% to 100 wt% of the solid phase of the sludge, is added, and then the mixture is stirred for five minutes; finally, the conditioned sludge is transported to a press-filtering dehydration device to carry out operations of filtering, squeezing, and dehydrating. The provided method has the following advantages: (1) the composite conditioning agent is non-toxic and harmless, does not generate any secondary pollution, and does not corrode the sludge transportation lines and dehydration equipment; (2) the sludge processing performance is improved by seven times after the novel technology is adopted; (3) the water content of a dehydrated filter cake is reduced by 10% compared to the original technology; (4) the processed sludge can be directly buried, burned or composted, and can meet the national environmental requirements; (5) the technology is simple, and the provided method can be applied to industry.

The invention discloses a method for separating elements from a tin-tellurium-bismuth containing solution, and belongs to hydrometallurgy. Because of the low content and low grade of tin, tellurium and bismuth, tin, tellurium and bismuth in the tin-tellurium-bismuth containing solution cannot be economically recycled when basic cupric carbonate is produced along with wastewater treatment at present, and the resources can be greatly wasted. The method comprises the following steps: adding an industrial waste liquid containing multiple components, appropriately adjusting the pH value, primarily separating from other base metals, performing oxidation conversion treatment on the obtained tellurium enriched product so as to obtain a secondary enriched product, further leaching tin and bismuth by using low-concentration sodium hydroxide strong base, and separating tin by using high-concentration sodium hydroxide strong base, thereby obtaining a high-grade crude tin product, adjusting the pH value of a tellurium solution by using a diluted acid, and removing impurities such as tin and lead for a second time, thereby obtaining high-grade tellurium dioxide, providing the high-grade tellurium dioxide to a tellurium refining plant for refining tellurium, and extracting other elements from converted slag which is rich in bismuth and silver. The method is free of dispersion in the tellurium extraction process, has the advantages of high tellurium recycling rate and direct yield, is good in tin and bismuth separation effect and is applicable to treatment on low-concentration tin-tellurium-bismuth containing solutions.

The invention relates to a domestic waste treatment system and a treatment method thereof. The domestic waste treatment system includes a feeder, a pulper connected to the feeder, a pulper set in the pulper, and a pulper set at the bottom of the pulper. The sieve, the undersize discharge port set under the screen, the oversize discharge port connected to the bottom of the pulper, the sorting tank set on the side of the oversize discharge port, and the sorting tank one The material lifter on the side, the grit chamber installed on the side below the undersize discharge port, the sand lifter installed on one side of the grit chamber, the circulating water pipe connected to the top of the pulper at one end, and the other end of the circulating water pipe A connected circulating water tank, a sedimentation tank arranged on one side of the circulating water tank, and a slurry extractor arranged on one side of the sedimentation tank. The invention has the advantages of simple process, easy operation and low cost, realizes efficient cleaning, decomposition, crushing, and synchronous classification of household garbage, is suitable for large-scale treatment of household garbage, and realizes resource utilization of household garbage and harmless and pollution-free treatment. Synchronize.

The invention provides a method for preparing metal nickel sulfate, sodium dihydrogen phosphate and sodium sulfate by using a nickel plating aging liquid. The method comprises: (1) adjusting the pH value of a nickel plating aging liquid by using an alkali, and carrying out thermal insulation to obtain a solution A; (2) stirring the solution A, adding a catalyst, and filtering to obtain metal nickel powder and a solution B; (3) adding sulfuric acid to the metal nickel powder to dissolve, adding hydrogen peroxide, and carrying out filtration concentration crystallization to obtain the nickel sulfate product; (4) adding an oxidizing agent to the solution B to obtain a solution C; (5) adding a concentrated acid to the solution C and adjusting the pH value to obtain a solution D; (6) evaporating and crystallizing the solution D, and filtering to obtain the sodium sulfate product and a solution E; and (7) continuously concentrating the solution E, carrying out cooling crystallization, and filtering to obtain the sodium dihydrogen phosphate product, wherein the mother liquor returns to the next batch so as to be continuously concentrated and used. According to the present invention, the treatment process is easy to achieve, no secondary waste is produced, the three products such as nickel sulfate, sodium dihydrogen phosphate and sodium sulfate can be obtained at the same time, and the good economic benefits and the good environmental benefits are provided.

The present invention relates to the field of organic compound synthesis, and specifically, relates to a sulfonate-type biomass surfactant based on a fatty acid methyl ester and a synthesis method thereof. A main component of city restaurant and kitchen swill waste oil is the fatty acid methyl ester. The sulfonate-type biomass surfactant based on the fatty acid methyl ester is prepared from the following steps: preparing fatty acid alkanolamide, and carrying out a sulfopropyl reaction. The sulfonate-type biomass surfactant based on the fatty acid methyl ester is applied in the field of oil production. The sulfonate-type biomass surfactant synthesized in the present invention has better surface activity and interfacial activity, is non-toxic, non-hazardous and degradable, does less harm to an environment and a stratum layer, can replace a conventional petroleum diesel-based surfactant, achieves purposes of resourceful comprehensive utilization of city restaurant and kitchen swill and added value improvement, and has a good application prospect; in addition, a synthesis reaction condition is mild, a preparation process is simple, and the process is reasonable, applying to scale production; the surfactant is used as an oil washing agent of a chemical flooding system in oil drilling, improves an oil washing effect, and thus improves a crude oil recovery rate.

The embodiment of the invention provides a Spark performance optimization control method and device, equipment and a storage medium, and the method comprises the steps of determining an initial operation configuration parameter of a to-be-optimized Spark task, controlling the operation of the Spark task according to the operation configuration parameter, and obtaining the resource occupation information in the operation process of the Spark task; when it is determined that the operation configuration parameters need to be adjusted according to the obtained resource occupation information, adjusting the operation configuration parameters of the Spark task based on the resource occupation information, that is, closed-loop dynamic adjustment optimization is conducted on the operation configuration parameters of the Spark task according to the specific operation condition of the Spark task, therefore, resources are reasonably utilized as much as possible in the Spark task running process,and the performance of Spark can be rapidly improved.

The invention relates to a method for purifying waste water from vanadium extraction by wet method, which comprises the following steps: S1 adding water and stirring calcium carbide slag, adjusting the water content to 60-70%, and obtaining calcium carbide slag slurry after pressure filtration; S2 adding calcium carbide slag to S1 Add 5-15% of its weight tailings slag into the slurry, stir for 1-5min to obtain a dispersion; S3 introduces the waste water into the treatment tank, and adds the dispersion in S2, which accounts for 5-20% of the waste water weight, and stirs for 2-20% in the treatment tank. 8min; S4, add the calcium carbide slurry obtained in S1 to the wastewater treated by S3, accounting for 50-70% of its weight, continue to stir for 1-4min, and let it stand for 10-30min; S5 collects the supernatant in S4 and puts it in the supernatant Add the calcium carbide slurry in S1, continue to stir and adjust the pH to 9-10, let it stand for 10-30 minutes and press filter; S6 collects the lower sediment obtained in S4 and the filter cake in S5, mixes them and performs press filtration, and the obtained filtrate is mixed with S4 The waste water is combined for treatment; S7 collects the filtrate in S5, which is the clean water obtained after the waste water is purified. The invention does not need to add chemical agents such as sodium carbonate, PAC, PAM, etc., and the steps are relatively simple; it can also remove toxic substances such as arsenic and fluorine in waste water.

The invention relates to a method and a device of assembly line monitoring management. The method includes the following steps that state data of each product in the assembly line in each process are collected, a server calculates location information of each product in each process according to the collected state data, a display device displays the location of each product in each process in the assembly line according to the location information, the server simulates the location of each product in each process in the assembly line according to the location information, actual residence time and standard process time are obtained, when the actual residence time is out of a preset value range, the number of processes in the simulation process in the step 4 is adjusted to obtain a final simulation status, and the number of stations and the number of operating personnel in the processes in the actual assembly line are set according to the final simulation status. According to the method and the device of the assembly line monitoring management, the problems in the assembly line can be discovered timely and conveniently, resources of all processes can be used to a maximum degree, stoppage and waiting time of the assembly line are reduced, and production efficiency is improved.

The invention discloses a cleaning agent for removing fluorine and chlorine in calcium carbide furnace exhaust. The cleaning agent is prepared by the processes of taking A-X combined zeolite as a carrier and loading an active metal component for removing fluorine and chlorine by a kneading method. Compared with the prior art, the cleaning agent disclosed by the invention takes metals such as silver, cerium, nickel and cobalt as active components, and takes the A-X combined zeolite as the carrier, so that the aperture of an adsorption layer of the cleaning agent is wider in distribution, and the cleaning agent has a good absorption effect on fluorides and chlorides with different apertures. The cleaning agent disclosed by the invention is efficient and fast; effective removal of heavily contaminated materials such the fluorides and the chlorides in the calcium carbide furnace exhaust can be simultaneously achieved at normal temperature; the fluorine content and chlorine content in the cleaned exhaust are smaller than or equal to 0.1 mg / Nm<3>; the resource utilization of carbon monoxide can be completely met.

The invention discloses a method for the resource utilization of waste lithium ion battery roasting tail gas. Indirect reduction roasting is performed on waste lithium ion batteries in a rotary kiln,and battery powder and metal current collectors which are used for the recycling of follow-up processes after roasting, crushing and sieving; after tail gas generated during roasting is absorbed through the spraying of an alkaline solution, mixed filter residues of lithium phosphate and lithium fluoride and sodium fluoride containing filtrate can be obtained through filtering; a sodium fluoride product and crystallization mother liquor can be obtained after the evaporation, crystallization and filtration of the filtrate, and the crystallization mother liquor can return to be absorbed through spraying; calcium oxide or calcium hydroxide is added to precipitate fluorine and phosphor after the acid dissolution of the filter residues, mixed filter residues of calcium fluoride, calcium oxide and calcium phosphate which can be used as ceramic raw materials and lithium containing filtrate can be obtained after filtering; and a lithium carbonate product and alkaline filtrate are obtained afterthe concentration, lithium precipitation and filtering of the filtrate, and the alkaline filtrate can return back to the alkaline solution to adjust the pH of the solution. The method is simple in technology, short in process and low in reagent cost, and secondary pollution cannot be generated, so that the recycling problems of fluorine, phosphor and lithium in waste lithium ion battery roastingtail gas can be effectively solved.