31results about How to "Realize resource reuse" patented technology

The invention discloses an AnMBR in-situ treatment device and method for marine oil-containing mixed wastewater. The AnMBR in-situ treatment device comprises a reactor shell, and the shell is provided with a sample inlet, a sludge outlet, a backwashing device and a circulating gas inlet device; a membrane component is arranged in the shell, a stirrer is arranged in the membrane component, and rolling brush type frame flexible filler is arranged inside and outside the membrane component; a suction pipeline is arranged in the shell, treated sewage is discharged to an external water collecting tank through the suction pipeline, a suction pump, a liquid three-way valve and a water outlet pipe, and liquid is sucked from the water collecting tank through the suction pump and enters the reactor shell through a backwashing water inlet pipe and a backwashing device to wash the outside of the membrane module; a gas outlet hole is formed in the top of the reactor shell, and treated gas is exhausted from the gas outlet hole, passes through a gas collecting pipeline, a first gas exhaust pipeline, a second gas exhaust pipeline and a backwashing gas inlet pipeline, is pumped into the reactor shell through a circulating gas inlet device under the action of a gas circulating pump and is used for washing the membrane component; according to the invention, the contradiction between small ship space and large complex occupied area of the treatment device can be solved, the accumulation of pollutants in the membrane module is slowed down, the operation cost is reduced, the microbial density is increased, the spatial distribution of functional bacteria is completed, the impact resistance of the device is improved, and the comprehensive in-situ removal of carbon, nitrogen and sulfur pollutants and the zero emission of harmful gases are realized.

The application discloses a titanium-based cast iron release agent, which comprises a base and water, and the base is composed of raw materials with the following mass percentages: 20-80% of silicon-based raw materials and 20-80% of titanium-based raw materials; the titanium-based raw materials are flue dust removal ash generated in the electric furnace process of high-titanium slag smelting. The application uses the flue dust removal ash generated in the electric furnace process of high-titanium slag smelting as a titanium raw material to prepare the titanium-based cast iron release agent, realizes the resource recycling of the flue dust removal ash, reduces the pollution to the environment, and improves the economic value; meanwhile, all preparation processes are carried out under normal temperature and pressure conditions, no additional energy is required, and when the titanium-based cast iron release agent is applied to a cast iron machine mold, the surface of the cast iron block can be ensured to be smooth and easy to release.

The present application provides a kind of nitromethane tail gas treatment method, comprising the following steps: sodium hydroxide or potassium hydroxide aqueous solution and low-grade fatty diol and organic base miscible to form mixed solution after preheating, then nitromethane tail gas is passed into mixed solution and reacts, reaction end product is separated and purified to obtain corresponding sodium nitrite or potassium nitrite product.The present application also provides a kind of nitromethane production method, including the sodium nitrite or hydrogen potassium obtained above as raw material to recycle production nitromethane.The method of the present application solves the problem of nitromethane tail gas treatment, also can turn waste into treasure, reduce production cost, conducive to nitromethane production and environmental protection.

The invention provides a DPU capability multiplexing method and device, electronic equipment, a storage medium and a program product, relates to the technical field of communication, and is used for improving the resource utilization rate of a DPU. The method comprises the following steps: receiving a DPU call request message, wherein the DPU call request message comprises a DPU capability demand of a target application; based on the calling request, determining N reusable DPUs meeting the DPU capability requirement; n is an integer greater than or equal to 1; a calling response message is sent to a source DPU where the target application is located, the calling response message comprises the address information of the N reusable DPUs and is used for indicating the source DPU to segment the to-be-processed data of the target application according to the address information of the N reusable DPUs to obtain N data slices, and the N data slices are sent to the N reusable DPUs respectively.

The present invention is applicable to the field of chemical synthesis technology, and provides a composite material lignin-based hydrothermal carbon and its preparation method and application. The present invention uses lignin as a raw material to realize the resource recycling of biomass; a highly active lignin-based hydrothermal carbon material is prepared by a hydrothermal method, and a highly active composite material lignin-based hydrothermal carbon material is prepared by combining a mechanical ball milling method, and the synthesis route is more convenient, green and safe; lignin can increase the surface functional groups through a hydrothermal process, and the present invention introduces metals and boron ions into the catalyst through a mechanical ball milling process, so that the material can efficiently isomerize glucose into fructose, with a short reaction time and high selectivity. The preparation method provided by the present invention is used to prepare a metal aluminum-modified lignin-based biochar catalyst, which can achieve a glucose conversion rate of 67.4% and a fructose yield of 54.8%.

The present invention relates to the field of signal planning, and in particular to a signal planning method based on overlapping frequency bands of a dual-channel system, comprising the following steps: dividing a working frequency band into two channels, and adding overlapping frequency bands to the two channels; determining the channel planning of the signal according to whether the signal is located entirely on non-overlapping frequency bands: when the signal frequency bands are all located on non-overlapping frequency bands, directly selecting a suitable channel by comparing the signal with the channel frequency band range, and selecting the channel of the frequency band where the signal is located for signal transmission; when the signal frequency bands are not all located on non-overlapping frequency bands, channel planning is performed for a single signal and two signals respectively. The present invention sets overlapping frequency bands between dual channels, does not have additional costs caused by increasing frequency band resources, and realizes resource reuse of overlapping frequency bands without modifying hardware equipment, thereby avoiding the problem of idle channel resources in a system that uses overlapping frequency bands to achieve signal continuity.

The application relates to the field of wind power blades, and discloses a wind power blade manhole plate and manhole cover plate as well as a preparation method and application thereof. The method comprises the following steps: (1) mixing unsaturated polyester resin, a thickening agent, an initiator, a crosslinking agent, a low shrinkage agent, a release agent, a polymerization inhibitor, an inorganic filler and waste glass fibers, and then filling the mixture into a mold for preheating; (2) performing mold pressing on the preheated material to obtain a preformed material; and (3) performing heat treatment on the preformed material, and then performing demolding to obtain the wind power blade manhole plate and manhole cover plate. The method is prepared by creatively adopting a mold pressing forming method, and waste glass fibers are used as raw materials for preparation, so that the preparation cost is saved, and the preparation efficiency is improved.

The invention belongs to the technical field of material preparation and application, and particularly relates to a preparation method and application of an iron-carbon micro-electrolysis material containing copper-based MOFs. The preparation method of the iron-carbon micro-electrolysis material containing the copper-based MOFs comprises the following steps: comprehensively utilizing waste iron-ore slag, activated carbon, waste molasses and ammonium chloride, mixing, mixing with water to prepare microspheres, and calcining to prepare the iron-carbon micro-electrolysis material. The preparation method comprises the following steps: sequentially adding copper sulfate, sodium ascorbate and 1, 2, 4-triazole into a methanol aqueous solution, and carrying out hydrothermal reaction to obtain the Cu-MOFs material. According to the invention, the metal catalyst Cu-MOFs material is added into the iron-carbon micro-electrolysis material, so that the removal rate of nitrite nitrogen in water reaches about 97%, and the iron-carbon micro-electrolysis material has the advantages of high conversion rate, strong anti-interference capability, no secondary pollution and the like; in the preparation process, reaction raw materials are wide in source and low in price, waste iron-ore slag is used for replacing iron powder, waste molasses is used for replacing starch to serve as an adhesive, and comprehensive utilization of waste is achieved.

The present invention discloses a method for cold-pressing blast furnace gravity ash, comprising the steps of: (1) drying blast furnace gravity ash and converter steel slag tailings; (2) preparing a binder; (3) spraying water and mixing blast furnace gravity ash, converter tailings and binder at a mass ratio of 80:20:15-35, and pressing into blocks to prepare a sample. The present invention treats blast furnace gravity ash by adding a high-efficiency binder and converter tailings to make it cold-pressed. CMC in the binder is used to perform low-temperature consolidation on converter tailings and blast furnace gravity ash, and cement and bentonite are used to improve their strength, thereby finally achieving effective bonding of blast furnace gravity ash, expanding its application path, and providing a new method for treating blast furnace gravity ash, a solid waste resource of enterprises.

The application discloses a water conservancy construction sludge carbon resource utilization device, and relates to the technical field of sludge resource treatment, which comprises a filter cartridge, a cover shell and a heat exchanger. The filter cartridge is internally provided with heat exchange pipes. The cover shell is coaxially and sealingly sleeved outside the filter cartridge and forms an annular space. The annular space is provided with an air inlet pipe and an air outlet pipe at two ends. The two groups of pipelines of the heat exchanger are heat-coupled. One group of pipelines is connected with the heat exchange pipes to form a heat exchange loop, and the other group of pipelines is connected with the waste gas pipeline of a carbonization furnace and the air inlet pipe. After waste gas of the carbonization furnace is recycled by the heat exchanger, the waste gas is introduced into the annular space to form annular airflow, which can break the water film on the surface of the filter cartridge, increase the pressure difference between the inside and outside of the filter hole, improve the sludge dewatering efficiency, and remove the waste gas particulate matter carried by the airflow. The carbonization furnace waste heat resource utilization, sludge efficient dewatering and waste gas purification integrated operation can save energy and reduce emissions, and has remarkable environmental protection benefits.

This invention discloses a method for producing planting soil for landscaping using nitrogen- and phosphorus-polluted river and lake sediment. The method includes the following steps: collecting nitrogen- and phosphorus-polluted river and lake sediment; filtering the sediment through a separation unit to obtain a first mixed soil; allowing the first mixed soil to stand for one hour; adding auxiliary materials to the first mixed soil; and then subjecting it to intensive mixing through a mixing unit to obtain a second mixed soil; sending the second mixed soil to a ventilation chamber and adding a microbial compound inoculant to promote rapid decomposition, thus obtaining planting soil suitable for landscaping. This invention has the following advantages and effects: it designs a complete and standardized processing chain to improve nitrogen- and phosphorus-polluted river and lake sediment, producing planting soil for landscaping, turning waste into treasure, and realizing the resource reuse of sediment.

The utility model discloses a ball massage stick which aims to solve the technical problems that in the prior art, the massage range of a ball massage device is limited, and balls are not convenient to recycle, the massage stick comprises an upper cover, a plurality of balls, a lower cover, a massage block and a handle body, the handle body comprises a handheld portion and a fixing portion, the handheld portion is a long irregular cylinder, and the fixing portion is fixed to the handheld portion. A user can conveniently hold different positions on the handheld part according to own requirements, the assembly steps are that the massage block, the lower cover, the ball and the upper cover are correspondingly clamped into the first mounting position, the second mounting position, the lower rolling groove and the third mounting position in sequence, the assembly is simple, when the ball needs to be recycled, the ball can be taken out by pressing the switch button, resource recycling is achieved, and the practicability is high. And meanwhile, balls of different numbers and different sizes on the lower cover can be conveniently replaced, and the use flexibility is higher.

The application discloses a red clay phosphorus adsorbent, which comprises 115-145 parts of red clay particles, 20-30 parts of diatomite, 10-15 parts of glass powder and 3-10 parts of marble powder; and the preparation process comprises the following steps: preparing the red clay particles, weighing the raw materials, crushing, calcining and mixing. The red clay has good adsorption performance on phosphorus, is rich in resources, has a wide distribution range and low cost, and is a natural environment-friendly material. When the red clay is put into sewage, no secondary pollution and other problems are caused, so the red clay has great development potential in the aspect of adsorbing phosphorus.

The invention provides a method for nanofiltration separation of vanadate radicals or multiple vanadate radicals and sodium ions from a vanadium solution, relates to the crossing field of hydrometallurgy resource recovery and membrane separation technologies, and aims to solve the technical problems of poor separation selectivity of vanadium and sodium in the vanadium solution, low resource recovery rate and high energy consumption in the prior art. According to the method, suspended impurities in a vanadium solution are removed through pretreatment, and an acid and alkali resistant modified polyamide composite nanofiltration membrane is selected for nanofiltration separation, so that a high-vanadium concentrated solution and a high-sodium permeate solution are obtained. According to the method, the vanadate radical rejection rate is larger than or equal to 98%, the sodium ion transmittance is larger than or equal to 80%, the high-sodium permeate liquid can be circularly used for preparing a leaching agent / regenerant, the energy consumption of solution treatment per ton is only 25-37.5% of that of a traditional process, secondary pollution is avoided, the process is simple, the method is suitable for industrial production, and the economical efficiency and environmental friendliness of the sodium modification vanadium extraction process are remarkably improved.

The utility model discloses a defrosting device of an air filter, and relates to the technical field of air filters. The device comprises two reinforcing rings, a filter screen component, a copper gauze component, a heating pipe and a protective cover, the reinforcing rings are arranged on the upper end face and the lower end face of the defrosting device correspondingly. The filter screen assembly comprises a high-strength plastic framework filter screen on the inner layer and a scrapped air filter outer screen on the outer layer. The copper gauze element assembly comprises a 120-mesh copper gauze element and a thin stainless steel wire shaping frame embedded into the edge of the 120-mesh copper gauze element, the heating pipe is arranged in the circumferential direction of the middle of the defrosting device and filled with electric heating wires, and cooling fins are arranged on the outer surface of the heating pipe. According to the utility model, the 6-10 heating pipes are uniformly distributed along the circumference and are matched with the radiating fins on the outer surface, so that heat can be quickly and uniformly radiated, frost layers at all parts of the filter element can be synchronously melted, and the defrosting efficiency is effectively improved.

The present invention discloses a method for preparing a light matrix fertilizer for cultivating indocalamus container seedlings. The matrix fertilizer raw materials are calculated by weight and include: 10-15 parts of peat soil, 10-15 parts of forest surface soil, 40-50 parts of fermented bamboo residues, 10-20 parts of mushroom stick waste, 5-10 parts of manure, 5-10 parts of coal slag powder, 10-15 parts of expanded perlite particles, and 5-10 parts of cross-linked microcrystalline cellulose super absorbent resin. The light matrix fertilizer raw materials of the present invention are simple to prepare and low in cost. The indocalamus ramet container seedlings cultivated by using the matrix have high survival rate and new bamboo germination rate, strong new whip germination ability, and vigorous plant growth. At the same time, the seedling culture matrix has the characteristics of loose texture, light weight, good water retention and excellent anti-collapse performance, which is convenient for seedling transportation and mountain planting.

The invention discloses oily wastewater evaporation and concentration treatment equipment and method.The oily wastewater evaporation and concentration treatment equipment comprises a sewage treatment barrel, a vacuum distillation device, a heat pump circulation system and a backflow circulation structure, the sewage treatment barrel is integrated with a centrifugal filtering mechanism and an oil scraping mechanism, and fine impurity separation and oil-water separation are achieved; the vacuum distillation device is matched with the vacuum generation device through the distillation unit and the condensation unit to complete deep purification; the heat pump circulation system forms closed-loop energy circulation, and distillation heating and condensation cooling are synchronously performed; the reflux circulation structure realizes secondary treatment of residual liquid, the treatment method comprises the steps of centrifugal filtration, oil removal, vacuum distillation, condensation and reflux circulation, the problems of incomplete pretreatment, high energy consumption and insufficient purification of existing equipment are solved, and the equipment has the characteristics of wide adaptability, good purification effect, energy conservation, high efficiency and stable operation; and up-to-standard discharge or recycling of the oily sewage can be realized.

The embodiment of the utility model provides a clock system and computer equipment, and the clock system comprises a clock source circuit which generates multiple paths of clock signals, and the multiple paths of clock signals comprise at least one path of first clock signal and at least one path of second clock signal; the plurality of clock buffers comprise at least one first clock buffer, one first clock buffer is in butt joint with one path of first clock signal, the path of first clock signal is expanded into a plurality of paths of calculation unit clock signals, and the calculation unit clock signals are provided for the butt joint of the plurality of calculation units; and at least one second clock buffer, one of the second clock buffers being in butt joint with a path of second clock signal, expanding the path of second clock signal into a plurality of paths of interface switching chip clock signals, and providing the interface switching chip clock signals to the plurality of butted interface switching chips. According to the clock system provided by the embodiment of the invention, the deployment cost can be reduced.

This invention discloses a self-healing high-strength composite geotextile based on MICP technology and its preparation method. It comprises a first bio-fiber geotextile, a high-strength composite geotextile, and a second bio-fiber geotextile arranged sequentially from bottom to top. The first bio-fiber geotextile is composed of animal fur fibers, plant stem and leaf fibers, and synthetic fibers, and is formed by needle punching. The high-strength composite geotextile is composed of high-strength warp fibers, high-strength weft fibers, and polypropylene fibers, interwoven in a cross-hatching manner to form a grid-like structure. The central pores of each grid-like structure formed by the high-strength warp fibers, high-strength weft fibers, and polypropylene fibers of the high-strength composite geotextile are uniform in size and uniform in shape. The second bio-fiber geotextile, composed of animal fur fibers, plant stem and leaf fibers, and synthetic fibers, is needle-punched through the central pores of the grid-like structure of the high-strength composite geotextile and connected to the fibers of the first bio-fiber geotextile.

The invention discloses an electricity protection device and method based on direct current discharge of an electric automobile, and belongs to the technical field of new energy automobile charging and discharging. The device comprises a quick plug, a V2G bidirectional power module, a static transfer switch STS, a bypass device and a lightweight energy management system EMS; the quick plug is connected with the V2G bidirectional power module; the V2G bidirectional power module is connected with the AC bus. The first end of the STS is connected with an AC bus, and the second end is connected with a bypass device in parallel and then connected to a load; the bypass device and the STS form dual redundancy protection; the lightweight energy management system EMS is connected with the electric vehicle through a quick plug, collects the battery SOC, the battery temperature and the battery voltage of each path of the electric vehicle, and controls the electric vehicle to participate in power grid interaction through a V2G bidirectional power module; and monitoring the commercial power voltage, and triggering an STS switching instruction according to the commercial power voltage state. Resource reuse is achieved, it is ensured that the key load is not powered off, and the requirements of medium and large power protection scenes are met.

The invention relates to the technical field of submerged arc furnace waste heat recovery and utilization, and discloses a submerged arc furnace stokehole floor mold pouring and iron slag separation waste heat recovery power generation system. Comprising the following modules and components: a pretreatment and system initialization module, a shunting separation and primary heat exchange module, an iron slag deep cooling and sensible heat recovery module, a flue gas gathering heat exchange and power generation module and a tail end closed loop and waste heat secondary utilization module. The pretreatment and system initialization module comprises a chemical water system, a DCS (Distributed Control System), a temperature sensor, a pressure sensor, a flue gas flowmeter, an external circulating fan, a cold air regulating valve and a radiant heat exchange pipeline; the system can effectively recycle waste heat and radiant heat generated in the cooling process of molten iron and iron slag of the chromite heat furnace, efficient recycling of heat energy is achieved, meanwhile, the environment temperature of a production workshop is reduced, and a safe, environment-friendly and fresh-air working environment is provided for production workers.

The application provides offshore floating carbon dioxide storage and methanol preparation equipment and a use method thereof, wherein a CO2 seabed storage and methanol preparation unit comprises a liquid CO2 receiving unit, a liquid CO2 storage unit, a CO2 feeding unit, a CO2 metering unit, a CO2 injection unit, a CO2 heating unit, a supercritical CO2 injection manifold unit, a hydrogen receiving and storage unit, a gas compression unit, a methanol synthesis unit, a methanol rectification and liquefaction unit, a liquid methanol storage unit, a nitrogen production unit and a liquid methanol delivery unit. The application not only realizes stable storage of supercritical CO2 in seabed abandoned oil fields, but also makes full use of "green hydrogen" produced by "abandoned wind and electricity" of offshore wind farms, realizes resource recycling of CO2 hydrogenation to prepare methanol, especially can be operated in abandoned oil and gas fields in different sea areas, has strong friendliness, flexibility and repeatability, and provides an effective application scheme for CO2 storage and recycling.

A document processing method and device, computer equipment, storage medium, and program product. The method includes: in response to receiving a processing request, starting an execution carrier of an interactive document based on a processing mode corresponding to the processing request; reading a document description of the interactive document based on the execution carrier, and performing a preset initialization process to complete initialization of the execution carrier; and processing the interactive document according to the processing mode based on the initialized execution carrier to obtain a processing result. The document processing method and device, computer equipment, storage medium, and program product can implement resource reuse.

This invention discloses a phosphate rock powder briquetting and roasting system and method. The system includes a batching subsystem, a roller pressing subsystem, a sieve distribution subsystem, a roasting and cooling subsystem, a finished product sieve molecular system, and a hot air circulation subsystem. This invention solves the problem of resource waste caused by the inability to reuse phosphate rock powder in existing phosphate rock processing, and the problem of land resource waste caused by the large-scale stockpiling of phosphate rock powder. It realizes the resource reuse of phosphate rock powder and greatly saves land resources. Simultaneously, the prepared lump ore product has high quality and strength, is convenient for subsequent transportation, and has strong transportability; the lump ore product has low moisture content and low carbonate content, effectively reducing the power consumption of subsequent lump ore phosphorus production and improving phosphorus purity.

The invention relates to the technical field of plant effective component extraction, and discloses a method for extracting artemisinin through enzymolysis pretreatment, which comprises the steps of raw material pretreatment, composite enzymolysis pretreatment, ultrasonic-assisted extraction, impurity removal and concentration, purification and crystallization, and recrystallization and refining. A compound enzyme system composed of cellulase, hemicellulase and pectinase is adopted to conduct enzymolysis on artemisia annua powder, cell wall structures are destroyed to promote artemisinin release, ultrasonic-assisted extraction is combined to strengthen the extraction effect, and the product purity is improved through chitosan impurity removal, silica gel chromatography and two times of crystallization. The method is simple in process, environmentally friendly and energy-saving, effectively solves the problems that a traditional extraction method is low in extraction rate, insufficient in purity and high in cost, is suitable for large-scale industrial production, and has high practical value and industrialization prospects.

The invention relates to a waste cigarette end separation and recovery method which comprises the following steps: (1) removing tipping paper on the surface of a collected cigarette end to obtain a pretreated cigarette end; (2) adding the pretreated cigarette end into an ethanol solution, and performing soaking treatment to obtain a first soaking solution and a first fiber section; performing acid treatment on the first soaking solution, separating a water phase, and performing alkalization treatment on the water phase to recover nicotine; (3) adding the first fiber section into a non-polar solvent, and performing soaking treatment to obtain a second soaking solution and a second fiber section; recovering a tar mixture through a second soaking solution; and (4) recycling cellulose acetate fibers by taking the second fiber section as a raw material. The method can efficiently separate and recover nicotine, a tar mixture and acetate fibers in the cigarette ends, realizes resource reutilization, reduces environmental pollution, reduces cost, and is simple.

The invention discloses an integrated water-cooling waste gas purification device, which belongs to the technical field of waste gas treatment equipment, and comprises a tray, a first support frame is arranged on the tray, the middle part of the first support frame is connected with a waste liquid collection box through a second support frame, the top of the first support frame is connected with a gas-liquid separation tank, and the upper part of the gas-liquid separation tank is communicated with a second gas inlet pipe; the second air inlet pipe is communicated with a U-shaped pipe, the U-shaped pipe is communicated with the first air inlet pipe, the top of the gas-liquid separation tank is connected with an air guide upper cover, the air guide upper cover is fixedly connected with a rotating disc, and a cooling water coil pipe is spirally laid on the rotating disc. According to the integrated water-cooling waste gas purification device disclosed by the invention, the U-shaped pipe is arranged, so that the noise level of a working environment is improved, the NMP recovery efficiency is remarkably improved, the environmental pollution is reduced, the space is saved, the maintenance requirement is reduced, the human resource investment and the maintenance cost are saved, waste gas is effectively treated, and resource reutilization is realized.

The invention provides a large-thickness impact-wear-resistant nickel-based composite layer based on heterogeneous double wires and a preparation method of the large-thickness impact-wear-resistant nickel-based composite layer, and relates to the technical field of surface engineering. The preparation method comprises a laser cladding step, and in the laser cladding step, toughened filaments and reinforced filaments are used as cladding materials, and a composite layer formed by alternately stacking toughened layers and reinforced layers is formed on the surface of a base material in an alternate cladding mode. The nickel-based composite layer is obtained through the preparation method, and the thickness of the composite layer is 3-100 mm. The strengthening layer / toughening layer two-dimensional / three-dimensional alternate piling structure can effectively relieve the crack tip stress state in the large-thickness ceramic particle reinforced metal-based composite layer, reduce the crack propagation driving force and effectively improve the toughness of the composite layer; therefore, the unique ordered combination of macroscopic strong / tough layer regular arrangement, in-layer microcosmic reinforcement phase composition and spatial distribution can effectively improve the impact wear resistance of the large-thickness nickel-based composite layer, and the service life of core parts in an extreme service environment is remarkably prolonged.

The invention discloses a phenolic soil pollution remediation material as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, uniformly mixing dried salix psammophila branch chippings and iron-containing sludge particles to prepare a mixed raw material; and placing the mixed raw material in a tubular furnace for anaerobic pyrolysis to prepare the phenolic soil pollution remediation material. The prepared phenol soil pollution remediation material is added into phenol-polluted soil to strengthen bioremediation of the phenol-polluted soil, the concentration of residual phenol and microbial communities in the soil are tested after bioremediation is completed, and the pollution remediation effect is evaluated. The iron-containing sludge discharged by a Fenton treatment unit for waste water in the waste paper papermaking industry and the waste salix psammophila biomass are subjected to co-pyrolysis, the prepared composite soil remediation material plays a role in enhancing remediation of the phenol-contaminated soil, and meanwhile the technical effects of low cost and pollution control with waste are achieved.

The invention relates to a method for preparing an engineering material brick after detoxification treatment of chromium metal smelting slag pollution, in particular to a method for preparing an engineering material brick after detoxification treatment of chromium slag pollution by reducing hexavalent chromium into trivalent chromium, and relates to a method for preparing a refractory brick after detoxification of chromium slag. Crystal lattices of dicalcium silicate, calcium aluminoferrite and calcium aluminate are destroyed with strong acid, so that hexavalent chromium is effectively reduced; 2, adding aluminum and magnesium strong reducing agents, namely adding powdery aluminum and magnesium as reducing agents into the metal chromium smelting slag after being soaked in phosphoric acid for 24 hours, and carrying out reduction reaction under a high-temperature condition; 3, analyzing the content of hexavalent chromium, adding the reducing agents aluminum and magnesium according to the content of hexavalent chromium, and enabling the particle size of the reducing agents to be less than 100 meshes; the density of the detoxified corundum brick product is 3.4-4.6 g / cm < 3 >, the corundum brick product is dense and free of holes, the corundum brick product comprises aluminum oxide and chromium oxide, and the refractoriness is higher than 1800 DEG C. The detoxicated corundum slag brick is suitable for use conditions of engineering materials, and the detoxicated corundum slag brick is used as a refractory material, so that resource reutilization is realized.