22results about How to "Promote resource utilization" patented technology

This utility model proposes a wastewater purification device for highway service areas, relating to the field of wastewater purification technology. The wastewater purification device includes: a toilet wastewater treatment structure, comprising a toilet wastewater equalization tank, an A / O biological treatment tank, and a filtration and disinfection unit; a catering wastewater treatment structure, comprising a catering wastewater equalization tank, an air flotation oil removal unit, and an grease recovery unit, wherein the air flotation oil removal unit is connected to the catering wastewater equalization tank, the grease recovery unit is connected to the air flotation oil removal unit, and the wastewater outlet of the air flotation oil removal unit is connected to the A / O biological treatment tank; and a car wash wastewater treatment structure, comprising a car wash wastewater equalization tank, a magnetic coagulation sedimentation unit, a membrane distillation unit, and a sludge treatment unit, wherein the inlet of the magnetic coagulation sedimentation unit is connected to the car wash wastewater equalization tank, and the magnetic coagulation sedimentation unit is simultaneously connected to the membrane distillation unit and the sludge treatment unit. This application achieves classified treatment, and the targeted process solves problems such as pollutant interference, equipment wear and tear, and overload during mixed treatment.

The invention discloses a rice-wheat rotation area liquid manure efficient returning planting method, which comprises the following steps: step 1, precisely metering and applying liquid manure subjected to innocent treatment, step 2, precisely applying the liquid manure by stages according to the fertilizer requirement rules of rice and wheat in different growth periods, and step 3, performing returning operation by combining injection type deep application and movable sprinkling irrigation equipment. 4, carrying out matched management after the liquid manure is applied; 5, carrying out a dynamic management closed loop of measurement, calculation, determination, application, monitoring and regulation; through system implementation and dynamic closed-loop management of three precise dimensions of opportunity, method and proportioning, ammonia volatilization and nitrogen and phosphorus runoff loss are greatly reduced, agricultural non-point source pollution is effectively controlled, soil organic matter is stably increased, chemical fertilizer investment can be remarkably reduced through precise replacement, the production cost is reduced, and the economic benefit is increased. Meanwhile, fertilizer utilization rate is increased, annual yield of rice and wheat is increased, and income is increased.

This invention relates to a spatial multi-layer ultra-high pressure belt dewatering system and method, comprising a main frame, a feeding device, a feeding device, a filter belt, a filter belt traction machine, a filter press hydraulic press, a hydraulic station, and a controller. The feeding device, feeding device, filter belt traction machine, and filter press hydraulic press are connected and installed on the main frame; the output end of the feeding device is connected and installed above the feeding device. The dewatering method includes starting the equipment, feeding, filter press dewatering, and unloading. This invention offers higher dewatering efficiency and lower cost, making it a more effective organic waste dewatering device for reducing pollution and carbon emissions.

The application provides a kitchen waste sorting device, and belongs to the technical field of waste treatment. The kitchen waste sorting device comprises a material distribution mechanism, a plurality of plastic cutting members and a double-curved-surface stirrer, and a conical material distribution hopper is provided with an inlet pipe on the side. An air flotation tank is located above the conical material distribution hopper and is in communication with the top of the conical material distribution hopper. The sidewall of the air flotation tank is provided with a discharge pipe. A plastic conveying mechanism is located below the water surface of the air flotation tank at the bottom and is located obliquely above the air flotation tank at the top. A slag discharge mechanism comprises a discharge pipe and a screw conveyor. The integrated kitchen waste sorting device can realize efficient sorting of plastic, waste oil, food residue and waste water. The waste oil and food residue can be recycled, which is conducive to the recycling of kitchen waste and the subsequent solid waste and waste water treatment.

This invention belongs to the field of blast furnace carbon emission reduction technology and discloses a blast furnace carbon emission reduction ironmaking system and method, including: oxygen-enriched ironmaking with the participation of a mixed reaction gas with high CO2 concentration. Due to the use of CO2 in the blast furnace blast and pulverized coal carrier gas, the oxygen enrichment rate is increased, and the amount of biochar is increased, thereby improving the smelting intensity of the blast furnace, increasing the proportion of pulverized coal replacing coke (increasing the coal ratio and decreasing the coke ratio), reducing ironmaking costs, and reducing carbon emissions. Furthermore, due to the use of CO2 injection and oxygen-enriched ironmaking operations, the amount of air incorporated into the mixed reaction gas is reduced, increasing the concentration of CO and CO2 in the blast furnace gas, which is beneficial for subsequent capture, separation, purification, and resource utilization of different components in the blast furnace gas.

The invention relates to an agricultural residual film sorting method and system.The method comprises the steps that to-be-sorted materials containing agricultural residual films are subjected to first screening, and light materials are obtained; the light material is crushed, and a crushed material is obtained; the crushed materials are subjected to winnowing separation, and solid materials and air flow containing plastic membranes are obtained; and carrying out gas-solid separation on the gas flow containing the plastic membrane to obtain the plastic membrane. According to the device and the method, efficient and high-precision separation of the plastic film and the biomass in the agricultural residual film material can be realized, resource utilization of the plastic and the biomass is promoted, and the device and the method have remarkable social and economic benefits.

The invention belongs to the technical field of livestock and poultry breeding and feed formulas, and particularly relates to feed for improving the meat quality of Songliao black pigs by cooperatively replacing soybean meal with fermented miscellaneous meal and application. The feed is prepared from the following components in parts by mass: 60 to 65 parts of corn, 8 to 12 parts of fermented peanut meal, 6 to 10 parts of fermented sesame seed meal, 3 to 5 parts of soybean meal, 4 to 6 parts of bran, 3 to 5 parts of rice bran, 1 to 2 parts of fish meal, 0.8 to 1.2 parts of stone powder, 0.6 to 0.9 part of calcium hydrogen phosphate, 0.3 to 0.5 part of table salt, 0.2 to 0.4 part of amino acid premix, 0.1 to 0.2 part of vitamin premix, 0.1 to 0.2 part of mineral premix and 0.05 to 0.1 part of compound enzyme preparation, wherein the total mass of the feed is 100 parts. Wherein the mass ratio of the fermented peanut meal to the fermented sesame meal is (1.0-1.5): 1, the proportion of the fermented peanut meal and the fermented sesame meal for synergistically replacing the soybean meal is 70%-85%, the crude protein content of the feed is kept at 16%-18%, and the feed meets the protein requirement of the Songliao black pigs in the fattening period. The feed can meet the growth and metabolism requirements of the Songliao black pigs, and the meat quality is remarkably improved while the breeding cost is reduced.

This invention provides a method for preparing nano-calcium carbonate, comprising the following cyclical processes: (1) pretreatment of dry carbide slag raw materials; (2) leaching Ca from the dry carbide slag with ammonium chloride solution. 2+ And perform solid-liquid separation to obtain a high-purity calcium chloride solution and ammonia. (3) Use the ammonia in (2) to absorb low-concentration CO2 flue gas to obtain a mixed solution of ammonium carbonate and ammonium bicarbonate; (4) Mix the mixed solution of ammonium carbonate and ammonium bicarbonate obtained in (3) with the calcium chloride solution obtained in (2) to obtain calcium carbonate precipitate and ammonium chloride solution; (5) Use the ammonium chloride solution obtained in (4) to evaporate and concentrate, and return to step (2) to complete the entire cycle process. This method uses the escaped ammonia produced by the traditional ammonium chloride leaching CO2 to dry carbide slag to absorb flue gas to prepare ammonium carbonate and ammonium bicarbonate. It not only achieves efficient conversion of low-concentration flue gas CO2, significantly reduces conversion costs, and improves economic feasibility, but also uses the high-concentration ammonium carbonate of the conversion product to produce nano-CaCO3, which has significant environmental and economic benefits.

The application discloses a method for treating harmful substances in breeding waste. The method comprises the following steps: degrading vitamins by using a compost anaerobic fermentation method, separating heavy metals by using a composite chelating agent and an EKR-PRB device, killing pests in the manure pile by using a composite microbial agent, and finally adjusting the system environment by using a stabilizer, so that the treated manure pile is easy to be recycled.

The invention relates to the technical field of kitchen waste treatment equipment, and provides a kitchen waste reduction and dehydration integrated treatment device which comprises an integrated cabinet body, a working platform installed at the top of the integrated cabinet body and a feeding hopper rotationally arranged on the working platform. The integrated cabinet body is internally provided with a crushing assembly used for receiving materials discharged by the feeding hopper, the integrated cabinet body is internally provided with a dewatering cylinder used for solid-liquid separation, and the feeding end of the dewatering cylinder is communicated with a discharging opening of the crushing assembly; a mesh filter ring is installed in the dewatering cylinder, a hollow discharging shaft is rotationally arranged in the middle of the dewatering cylinder, and an extrusion spiral piece is installed on the outer wall of the hollow discharging shaft. When the device is used, the aeration stripping assembly and the negative pressure assembly are used for effectively treating biological membrane solid waste generated when the dehydration device treats high-water-content and high-organic-matter garbage, secondary pollution is avoided, the dehydration efficiency is improved, and the requirements for environment-friendly treatment and recycling of kitchen garbage are met.

The application discloses a process for preparing ethanol by using cellulose pyrolysis liquid through electroactive escherichia coli, and belongs to the technical field of electrochemistry. In the application, waste cellulose is pyrolyzed and then pH is adjusted, a salt solution suitable for the growth of escherichia coli is prepared, and an antibiotic is added into a reaction system for fermentation and electrochemical conversion, and then the prepared escherichia coli reaction system is connected to an electrochemical system under sterile fermentation conditions to provide a micro-voltage. Through the above process, most of the internal ether sugar can be converted into ethanol, and the inhibitor in the pyrolysis liquid can be reduced by using an electric current, so that the degradation rate of the inhibitor is improved.

This invention discloses a multi-stage dynamic composite excitation solid waste roadbed filler treatment device and method, relating to the field of solid waste resource utilization technology. The device includes a pretreatment unit, a metering unit, a mixing unit, and a control unit. The pretreatment unit processes carbide slag, silica fume, excavated soil, and EPS particles, addressing issues such as incomplete agglomeration, incomplete removal of oversized particles, and ungraded EPS particles. In the mixing unit, a first and second stirring shaft are vertically distributed to form a three-dimensional shear flow field, and the material lifting device forms a vertical convection circulation, effectively solving the problem of uneven mixing caused by the low density and easy floating of EPS particles. The control unit enables coordinated control of all units. This device and method can improve the mixing uniformity of solid waste roadbed filler, reduce strength fluctuations, meet the quality requirements of engineering for roadbed filler, and promote the resource utilization of solid waste.

The application discloses a countercurrent submerged hot steel slag treatment coupled industrial flue gas carbon capture system and method, and belongs to the technical field of industrial solid waste and waste gas resource treatment. The system comprises a hot stewing pool, a slag cover, a matrix type water and gas distribution system, an industrial flue gas supply unit, a micro-nano bubble generating device, a waste heat recovery device and a control unit. The method is that the matrix type water and gas distribution system is used to pass cooling water and industrial flue gas water solution rich in micro-nano bubbles into hot steel slag from the pool bottom in a region-by-region and time-by-time manner, and countercurrent submerged cooling stewing slag and carbonation carbon fixation reaction are sequentially carried out. The application solves the problems of poor safety, low resource recovery rate and high carbon capture cost of the traditional hot stewing process, and provides a safe, efficient and low-cost steel slag and flue gas collaborative treatment solution.

The application discloses a treatment method of wastewater containing trivalent cobalt, and belongs to the technical field of hydrometallurgy. First, hydrochloric acid is added into the wastewater containing trivalent cobalt to adjust the pH value of the wastewater. Second, a complex breaker is added and stirred, and a primary heavy element removal is performed by using an ion exchange column. Third, hydrochloric acid is added again to adjust the pH value of the wastewater. Finally, the complex breaker is added again and stirred, and a secondary heavy element removal is performed by using the ion exchange column, so that the wastewater meeting the discharge standard is obtained. During the wastewater treatment process, no impurity element is added into the wastewater, so that the indexes of the ammonium chloride product are not affected, and the wastewater of small-size cobalt carbonate is beneficial to resource utilization.

The application discloses a kind of resource utilization of ceramic glaze of raffinate acid, it is the powder prepared with raffinate acid as main raw material;Each raw material and its weight fraction included are as follows: raffinate acid 16-20 parts, citric acid 5-8 parts, alcohol additive 4-7 parts, water 5-10 parts.The application takes industrial by-product raffinate acid as main raw material, fully recycles and utilizes effective elements in raffinate acid, further combines the regulation and control mechanism based on citric acid and alcohol additive and segmented temperature control process, and can realize high value-added resource utilization of raffinate acid in glaze field, with significant economic and environmental benefits;The obtained ceramic glaze can give consideration to good sintering crystallization effect, gloss and mechanical property, and has wide applicability.

The utility model belongs to the field of energy absorption structure manufacturing, and provides a porous material manufacturing device based on metal filings. The device comprises a device body and two electrodes installed at the upper end and the lower end of the device body. The upper and lower ends of the device body are respectively provided with an L-shaped mounting groove, and the side wall of the device body is provided with a temperature measuring port. Electrode water inlets and outlets are formed in two ends of the electrode, and an electrode water cooling cavity is formed in the electrode; a plurality of partition plates are arranged in the electrode water cooling cavity; one end of the electrode is provided with an electrode bolt and a nut; and the electrode is fixed in the L-shaped mounting groove through the electrode water inlet / outlet.

This application discloses a method for catalytic wet oxidation treatment of sodium thiosulfate. The method includes: contacting a raw material containing sodium thiosulfate with a catalyst and an oxidant to undergo an oxidation reaction to obtain sodium sulfate; wherein the catalyst includes a support and an active component; the support is activated carbon; the active component includes a transition metal active element; the transition metal active element is selected from one to three of Mn, Fe, Co, Ni, and Cu. This method can achieve oxidation of more than 60% of 10000 mg / L thiosulfate, and the catalyst activity can be restored by water washing and regeneration after a decrease. The catalyst morphology remains good after 30 days of continuous operation.

The utility model discloses a kind of waste treatment devices for plant essential oil extraction, belong to plant essential oil processing technical field, including extraction tank, the extraction tank side is equipped with steam generator, the steam generator is connected with extraction tank by conduit, the inside of the extraction tank is equipped with a waste collection component and no. Through the preliminary solid-liquid separation of the material throwing cylinder of the waste collection component, and after the secondary solid-liquid separation, part of the larger impurities is retained in the material throwing cylinder, and then the first filter frame and the second filter frame with different pore sizes in the waste collection component are used for fractional filtration, so that the waste with different particle sizes can be classified and collected, and complete separation can be achieved without additional process, which avoids the waste of essential oil residue and provides convenience for subsequent resource utilization of waste, and solves the defect that single filtering level cannot meet fractional collection.

The application relates to the technical field of organic pollutant degradation, and discloses a preparation method of a copper iron sulfide bimetallic catalyst, which comprises the following steps: under anaerobic conditions, copper chloride and iron powder are added into an acid buffer solution, a sodium sulfide solution is added after the mixture is uniformly mixed, and the copper iron sulfide bimetallic catalyst is obtained after reaction and filtration; the molar ratio of the copper chloride and the iron powder ranges from 0.3 to 1.3; and the molar ratio of the sodium sulfide and the iron powder ranges from 0.046 to 0.46. The copper iron sulfide bimetallic catalyst containing the main component CuFeS2 is prepared by exploring the feeding molar ratio of copper, iron and sulfur. The catalytic performance of the copper iron sulfide bimetallic catalyst prepared by the method is effectively improved. After the copper iron sulfide bimetallic catalyst is used to treat organic wastewater, the removal efficiency of the organic matter is maintained stable, and there is no leaching of metal Cu and Fe. The catalyst has the advantages of low treatment cost, simple operation condition and high efficiency, and provides a new method for low-carbon treatment of organic wastewater.

The application discloses a saffron crocus flower part extract rich in polysaccharides and a preparation method and application thereof, and belongs to the field of natural product extraction and medical biotechnology, and solves the technical problems of insufficient utilization of non-medicinal parts of saffron crocus, complex extraction process and insufficient development of related applications in the prior art. The saffron crocus flower part extract rich in polysaccharides is prepared from the saffron crocus flower part remaining after the column head is collected, and the preparation process comprises the following steps: drying and crushing, ethanol pretreatment, hot water extraction, reduced-pressure concentration and alcohol precipitation. In the saffron crocus flower part extract, the total sugar content is greater than or equal to 40% by weight, the sugar acid content is greater than or equal to 40% by weight, and the protein content is less than 1.0% by weight. The saffron crocus flower part extract has the effects of improving intestinal inflammation and protecting intestinal mucosal barrier, and can be used for preparing a medicine for improving or relieving intestinal mucosal barrier damage, and realizes high-value utilization of the non-medicinal parts of saffron crocus.

This invention discloses a discrete element method for simulating the micromechanics of concrete using coal gangue as an alternative aggregate, belonging to the field of geotechnical engineering and discrete element numerical simulation technology. The method includes: generating an initial set of spherical particles and constructing a homogeneous equilibrium sample; applying prestress through servo feedback to achieve equilibrium; importing a real crushed stone STL model to generate an irregular Clump template, proportionally replacing the spheres in situ with coal gangue and natural aggregate Clumps; employing a parallel bonding model and assigning differentiated mechanical parameters, then randomly reducing the strength of some contact bonds proportionally to simulate micro-defects; performing uniaxial compression loading, simultaneously monitoring the stress-strain curve, and tracking microcrack evolution based on DFN. This invention significantly improves the accuracy of the simulation through irregular aggregate reconstruction, differentiated parameter assignment of multi-material components, and a random weak contact algorithm, realistically reproducing the mechanical response and failure mode of permeable concrete made from coal gangue, providing a reliable numerical tool for the resource utilization of solid waste.

This application relates to the field of sodium sulfate resource utilization technology, specifically disclosing a system and method for the resource-based production of sodium bicarbonate and ammonium sulfate from sodium sulfate waste salt or high-concentration wastewater. A method for the resource-based production of sodium bicarbonate and ammonium sulfate from sodium sulfate waste salt or high-concentration wastewater includes the following steps: S1: Dissolution: Prepare a solution from sodium sulfate waste salt or high-concentration wastewater; S2: Purification; S3: Carbonation; S4: Separation and drying; S5: Concentration and crystallization: Concentrate the mother liquor I, then add a sodium salt with a solubility greater than that of sodium sulfate and sodium bicarbonate at 0-5℃ to precipitate double salt crystals of sodium sulfate and sodium bicarbonate. After filtration and centrifugation, obtain the double salt product and ammonium sulfate solution. The double salt product is returned to step S3 for reuse; S6: Flash evaporation purification. The method for the resource-based production of sodium bicarbonate and ammonium sulfate from sodium sulfate waste salt or high-concentration wastewater of this application has the advantages of high sodium sulfate utilization rate and high product purity.