9results about How to "Realize resource processing" patented technology

The invention relates to the field of buildings, in particular to a reinforced concrete member manufacturing method and a post-cracking bending rigidity calculation method.The reinforced concrete member manufacturing method comprises the following steps that S1, a steel reinforcement framework is fixed to the set position of a concrete pouring mold, and a reinforced area of a concrete body is determined; s2, determining structural parameters of the reinforcing grooves and the reinforcing ribs; s3, the foam board is cut to enable the shape of the foam board to correspond to the shape of the reinforcing groove, and the foam board is fixed to the position, corresponding to the reinforcing area, in the concrete pouring mold; s4, concrete is poured into the concrete pouring mold, a concrete main body is formed after the concrete is cured and solidified, and after the concrete main body is demolded, the internal foam plate is emptied to form a reinforcing groove; and S5, reinforcing ribs are inserted into the reinforcing grooves, the reinforcing grooves are filled with UHPC, and machining of the concrete member is completed after maintenance. The bearing capacity and durability of the reinforcing system are improved, meanwhile, the glass fiber reinforced resin composite material in the retired wind power blade is applied to the reinforcing system, and the reinforcing cost is reduced.

The utility model relates to three-stage chamber salt acid-alkali treatment equipment based on electrochemical reaction, which comprises a plurality of three-stage chamber electrochemical reaction units which are communicated with one another, and each three-stage chamber electrochemical reaction unit is provided with three independent chambers which are separated by an electrolytic diaphragm, the three independent chambers comprise an anode reaction chamber, a desalting chamber and a cathode reaction chamber which are sequentially arranged, an anode bar is arranged in the anode reaction chamber, and a cathode bar is arranged in the cathode reaction chamber; water inlets are formed in the side walls of the lower parts of the anode reaction chamber, the desalination chamber and the cathode reaction chamber, water outlets are formed in the side walls of the upper parts of the anode reaction chamber, the desalination chamber and the cathode reaction chamber, and the desalination chamber water inlet is used for allowing salt-containing wastewater to enter and be discharged through the desalination chamber water outlet after the salt-containing wastewater is subjected to desalination treatment in the desalination chamber; the water outlet of the anode chamber is communicated with a strong acid liquid box, and the water outlet of the cathode chamber is communicated with an alkali liquor settling box. The method has the effects of realizing resourceful treatment of the salt-containing wastewater, improving the water treatment efficiency of the salt-containing wastewater and reducing the water treatment cost.

This invention belongs to the field of comprehensive lithium slag recycling technology, and provides a method for the comprehensive recovery of lithium, rubidium, cesium, niobium, and tantalum from lithium slag. The method includes: magnetically separating lithium slag to obtain niobium-tantalum concentrate and tailings; sequentially roasting and alkali leaching the tailings to obtain leaching residue and leachate; adding a lithium adsorbent to the leachate for lithium adsorption to obtain a lithium-rich adsorbent and a lithium-removed liquid; desorbing the lithium-rich adsorbent to obtain a lithium-containing solution; then adding sodium carbonate to the lithium-containing solution to obtain lithium carbonate; and extracting and back-extracting the lithium-removed liquid to obtain rubidium chloride and cesium chloride. This invention enables the full recycling and utilization of lithium slag, recovering rubidium, cesium, niobium, and tantalum rare metals simultaneously with lithium, achieving resource-based treatment of solid waste. The lithium recovery rate reaches over 90%, and the rubidium and cesium recovery rates reach over 70%. The obtained lithium carbonate can be directly used, and the leaching residue can be directly used as cement raw material, thus improving the comprehensive utilization value of lithium slag.

The invention provides a preparation method of sludge-based biochar for directionally enriching iron phosphate through synergistic modification of ferrous sulfate and sodium persulfate, and belongs to the technical field of harmless treatment and resource utilization of municipal sludge and environmental functional materials. According to the method disclosed by the invention, active phosphorus in the sludge is converted into a stable iron phosphorus compound in advance through oxidation-complexation dual effects of the ferrous sulfate heptahydrate and the sodium persulfate; the phosphorus-rich sludge is converted into more stable phosphorus-rich biochar through two-step heat treatment, the whole process of sludge pyrolysis is cooperatively regulated and controlled through Fe < 2 + > / S2O8 < 2->, integration of phosphorus release, phosphorus fixation and heavy metal passivation is achieved, the problem that in the prior art, the phosphorus retention rate is low is solved, phosphorus resources in the phosphorus-rich sludge are extremely retained and stabilized, and the phosphorus-rich sludge is obtained. The fixed rate of phosphorus in the modified sludge-based biochar with directionally enriched iron phosphate prepared by the method is greater than 99%.

The invention discloses an oil sludge pyrolysis catalyst and a preparation method thereof, and belongs to the technical field of oily sludge treatment. The preparation method comprises the following steps: (1) pretreating coal coke to obtain modified coal coke; the pretreatment comprises the following steps: firstly, treating the coal coke by using organic acid, and then treating the coal coke treated by the organic acid by using alkali liquor; and (2) mixing the modified coal coke with ferric salt, and then sequentially carrying out solid-liquid separation, drying, calcining and reduction treatment to obtain the oil sludge pyrolysis catalyst. The coal coke is modified in an acid-base sequence, pore channels are opened and functional groups are increased through organic acid treatment, the pore channels are widened and heavy metal impurities are removed through alkali treatment, and the pore structure of the carrier is synergistically improved; then an iron active component is loaded, and the catalytic activity is improved through calcination and hydrogen reduction activation. When the prepared catalyst is used for oil sludge pyrolysis, the oil recovery rate can reach 94% or above, the preparation process is environmentally friendly, and resource utilization of oil sludge is achieved.

The application discloses a treatment method and a conversion device for resource utilization of methanol catalyst production wastewater, and the treatment method comprises the following steps: uniformly mixing anaerobic granular sludge, composite anaerobic bacteria and composite fillers to form mixed fillers, filling the mixed fillers into an anaerobic biological denitrification filter column, making methanol catalyst production wastewater enter the anaerobic biological denitrification filter column from the bottom, and then sequentially performing A / O biological denitrification process and sulfur autotrophic denitrification biological denitrification process on the wastewater after preliminary anaerobic biological denitrification of the wastewater by the mixed fillers. Compared with the prior art, the application realizes rapid treatment of methanol catalyst production wastewater by using the anaerobic biological denitrification filter column. Meanwhile, by combining the A / O + sulfur autotrophic denitrification process, the composite fillers, the anaerobic granular sludge and the composite anaerobic bacteria, rapid reproduction and biofilm formation of microorganisms are realized, and the application has the advantages of efficient denitrification, simple equipment, low operation cost, environmental protection and the like.

The application provides a resourceful treatment method of sodium chloride-containing waste and polyvinyl chloride waste, and belongs to the technical field of waste treatment. The resourceful treatment method comprises the following steps: mixing sodium chloride-containing waste, polyvinyl chloride waste, a promoter and a solid halogen agent, and performing calcination treatment to obtain calcined material; mixing the calcined material with water, and performing solid-liquid separation to obtain liquid material and solid material; the solid material is recovered promoter; and the liquid material is crystallized to obtain recovered sodium chloride. The resourceful treatment method can remove organic pollutants in the sodium chloride-containing waste, effectively fix the chlorine element in the polyvinyl chloride waste, prevent the chlorine element from escaping, and reduce the harm to the environment.

The utility model discloses a treatment device for treating marigold meal by using hermetia illucens, and relates to the technical field of waste treatment. The device comprises a treatment box body, wherein the treatment box body is of a cavity structure with an opening in the upper end; according to the utility model, through the arrangement of the treatment assembly and the anti-escape assembly, hermetia illucens and marigold meal can be placed in the inner box of the treatment assembly, and the opening end of the treatment box body is blocked by a gauze element in the anti-escape assembly, so that the escape of the hermetia illucens is avoided, and meanwhile, the normal entry of oxygen is ensured; the method comprises the following steps: regularly and randomly selecting hermetia illucens, measuring the weight, length and width of the hermetia illucens, collecting a marigold meal sample before transformation of the hermetia illucens, a transformed fecula sample and a hermetia illucens body after the test is ended, respectively measuring the marigold meal decrement rate, the biotransformation rate, the hermetia illucens body index and the hermetia illucens sand nutrient content, comparing and screening biological combinations with better transformation effects, and determining the biotransformation rate of the hermetia illucens. And a certain theoretical basis is provided for subsequent research and factory treatment.

This invention discloses a coal underground direct pyrolysis product separation system coupled with oxy-fuel combustion, comprising an air separation unit, pyrolysis product separation equipment, carbon capture equipment, an oxy-fuel combustion boiler, and heaters inside the boiler. The air separation unit provides nitrogen and oxygen for both underground direct pyrolysis and oxy-fuel combustion. The oxy-fuel combustion boiler heats the nitrogen, providing a heat source for the underground coal seam pyrolysis, and also heats the pyrolysis products, thereby removing solid particles through gas-solid separation rather than liquid-solid separation, reducing the difficulty of product separation. The separated pyrolysis gas can be used to reduce nitrogen oxides generated during oxy-fuel combustion. This invention utilizes the heat generated by oxy-fuel combustion to efficiently separate tar from the coal underground direct pyrolysis products, and by coupling the separation of underground direct pyrolysis products with oxy-fuel combustion, improves the system's economic efficiency and reduces nitrogen oxide emissions during oxy-fuel combustion.