1343 results about "Charcoal" patented technology

The invention discloses a biomass charcoal composite hydrogel slow-release fertilizer as well as a preparation method and application thereof, and belongs to the field of composite hydrogel and fertilizer preparation. The invention provides a biomass charcoal composite hydrogel slow release fertilizer, which comprises biomass charcoal, hydrogel fixed on the pores and surface of the biomass charcoal, and an element fertilizer mixed in the hydrogel, and the hydrogel is prepared from metal cations and alginate. The invention provides a strategy of'in-hole in-situ gelation ', hydrogel is prepared in situ in gaps of the biochar, and the biomass charcoal composite hydrogel slow-release fertilizer is prepared. The biochar and the hydrogel in the slow-release fertilizer are high in bonding strength and mechanical strength, so that the slow-release fertilizer has the slow-release function of the fertilizer and also has the capability of improving soil.

The invention discloses a coal gangue abandoned mine ecological restoration water retention technology, and belongs to the technical field of environmental protection. According to the remediation technology, after the surface soil of the mine is loosened, the alkaline waste and the heavy metal adsorbent are firstly added for neutralization and adsorption pretreatment, and then the composite soil conditioner is continuously added to sequentially cover and construct the improved composite layer soil in a gradient manner; the composite soil conditioner comprises fly ash, steel slag, local clay, straw fibers, water-retaining slow-release microcapsules, charcoal, papermaking white mud and humus soil, high-resistance vegetation is transplanted on the obtained improved composite layer soil, meanwhile, a microbial agent is inoculated, and remediation is completed after the soil is maintained to be stable. According to the method, multiple technical processes are integrated and matched and cooperated with one another, the purpose of long-acting water retention is finally achieved through the combined action of multiple remediation mechanisms of materials, vegetation and microorganisms, and compared with a traditional mine remediation technology, the method is better in stability and longer in acting time and has a good application prospect.

The invention discloses a preparation process of a soil conditioner and application of the soil conditioner in soil improvement, and the preparation process comprises the following steps: S1, preparation of pretreated biomass; s2, preparation of composite biochar; s3, preparation of sulfhydrylated biochar; s4, preparing the modified composite biochar; and S5, uniformly mixing the modified composite charcoal, kaolin, humic acid, fly ash, slaked lime and vermiculite to obtain the soil conditioner. According to the soil conditioner, modified composite biochar prepared through specific functionalization is blended with kaolin, humic acid, fly ash, slaked lime and vermiculite according to a certain proportion, and the prepared soil conditioner has unique advantages in the aspects of improving soil organic matter, fixing carbon, providing microelements and especially regulating and controlling the activity of soil microorganisms; advanced complementation and synergistic interaction of all the components are achieved, and the comprehensive treatment requirement of complex degraded soil can be better met.

The invention provides a salt-tolerant plant constructed wetland system for treating eutrophicated mariculture wastewater, which specifically comprises a lower filler formed by mineral materials, and a middle filler formed by modified zeolite, sodium alginate coated vermiculite, rice husk charcoal, oyster shell, coral sand and diatomite, the surface filler is composed of intertidal zone bottom mud, intertidal zone raw water, coastal saline-alkali soil and composite algae powder, and the three fillers are combined with salt-tolerant plant breeding, bow-shaped water flow optimization and layered collaborative design; the core problems of poor salt tolerance, low adsorption efficiency, easiness in blockage, high maintenance cost and the like of the traditional constructed wetland during treatment of the mariculture wastewater are systematically solved.

The application discloses a kind of derived biomass hard carbon material pulverization process, belong to biomass charcoal material processing technical field, first, pulverization process includes the following steps: after drying, the coconut shell derived hard carbon block is carried out primary crushing, while spraying first modifier, obtain the particle size 1~3mm of coarse crushing modified particle;Coarse crushing modified particle is carried out secondary precision crushing under argon atmosphere, while spraying second modifier, obtain the precision crushing modified particle of D 50 Particle size is 15 μm;Precision crushing modified particle is carried out roll grinding spheroidization, while spraying third modifier, obtain the spherical modified particle of D 50 Particle size is 10 μm;Spherical modified particle is carried out flash drying after cooling, then add magnesium stearate to it, after mixing, obtain derived biomass hard carbon material.Then, the application realizes breakthrough in tap density, particle size distribution, first efficiency and other core indexes by the coordination of three-stage gradient modification and progressive pulverization process.

The invention discloses a biomass charcoal processing pelletizer, and relates to the technical field of pelletizers, the biomass charcoal processing pelletizer comprises a driving assembly and a pelletizing chamber, a circular mold is fixedly connected in the pelletizing chamber, the output end of the driving assembly is an output shaft extending into the pelletizing chamber, during pelletizing operation, two compression rollers revolve around the axis of the circular mold along with rotation of the output shaft, and meanwhile, the two compression rollers rotate around the axis of the circular mold along with rotation of the output shaft. Under the action of the rotating assembly, in the process, the pressing roller automatically rolls to bite materials into an extrusion area, further, force applied to the materials by rolling of the pressing roller is perpendicular to the tangential direction of the outer contour of the pressing roller, and the included angle between the pressure direction and the axis direction of a discharging die hole of the circular die is extremely small, so that the working efficiency is high; active rotation of the compression roller replaces passive rotation, passive rotation promoted by friction between the compression roller and the circular mold and materials is avoided, accumulated heat in the granulation chamber is reduced, energy is saved, meanwhile, abrasion of the materials to the compression roller and the circular mold is relieved through active rotation compared with passive rotation, and the equipment maintenance cost is reduced.

The invention relates to the field of agricultural fertilizer and soil improvement, in particular to a biochar-based slow release fertilizer for improving acidified soil and a preparation method thereof.The biochar-based slow release fertilizer is prepared from, by mass, 60 parts of a biochar system, 5-12 parts of nitrogen fertilizer, 10-18 parts of phosphate fertilizer, 5-12 parts of potash fertilizer, 5-10 parts of an acid soil modifier and 2-5 parts of a slow release film; graded release of nutrients is achieved through a multi-aperture biochar system, the release rhythm is dynamically adjusted according to soil acidity in combination with a three-layer pH response type slow-release film, the problems that existing fertilizer nutrient release is not matched with crop requirements, and the persistence of acidified soil improvement is poor are solved, the pH and buffer capacity of acidified soil can be improved, the nutrient utilization rate is increased, and the soil quality is improved. And most of the raw materials are agricultural and forestry wastes and industrial byproducts, so that the soil conditioner meets agricultural requirements, is suitable for acidified soil, and has a wide application prospect.

A detachable handle for a grilling apparatus including a grate, such as a charcoal grill is provided. The detachable handles includes a handle assembly removably connected to a grill extending element. The detachable handle further includes at least one fastener configured to secure the grill extending element to the grate.

The invention provides a method for realizing rapid composting based on prediction and reverse adjustment, which comprises the following steps: 1) carrying out Meta analysis, comprehensively judging eight maturity indexes inside and outside a pile body, and providing an optimized data set for establishing an optimal prediction model for machine learning; 2) testing the performance of the model in a real scene, and collecting data of eight indexes; 3) utilizing Python to integrate prediction and reverse adjustment in the charcoal composting process into the optimal prediction model, and setting upper and lower limit values of process indexes in a thermophilic period, a high-temperature period and a cooling period; 4) inputting the collected eight index data into a model fusing prediction and reverse adjustment in the biochar composting process, and optimizing upper and lower limit values of process indexes in three periods; and 5) finally verifying the composting days based on prediction and reverse adjustment in the charcoal composting process in a real scene experiment so as to realize rapid composting. According to the method, the multi-target prediction model is established, different indexes of compost can be rapidly predicted, and the cost and time of manual determination are reduced.

The invention provides a porous ceramsite adsorption material prepared from straw biochar and rare earth tailings as well as a preparation method and application of the porous ceramsite adsorption material, and belongs to the technical field of environmental functional adsorption materials. The preparation method of the porous ceramsite adsorption material using the straw biochar and the rare earth tailings comprises the following steps: sequentially performing acid pickling and drying on the straw biochar to obtain acidified biomass charcoal; the rare earth tailings are subjected to ball milling, and tailings fine powder is obtained; mixing the acidified biomass charcoal, the tailing fine powder, the attapulgite and the wood chips to obtain a mixture; adding a binding agent and water into the mixture, and sequentially performing kneading and extrusion molding to obtain a ceramsite precursor; and calcining the ceramsite precursor in a protective atmosphere to obtain the porous ceramsite adsorption material. The technical problems that a traditional adsorption material is low in adsorption capacity, poor in strength and difficult to recycle are solved through ternary compounding of the acidified biomass charcoal, the rare earth tailings and the attapulgite and in combination with wood chip pore-forming, segmented calcination and acid pickling pretreatment.

The invention relates to a mine solid waste-based composite saline-alkali soil modifier as well as a preparation method and application thereof, and belongs to the technical field of soil remediation and solid waste recycling. The modifier is prepared from volcanic rock solid waste, rice husk and mussel shell as raw materials through oxalic acid activation, microbial fermentation carbonization and humic acid chelation, and comprises 50-70 parts of activated stone powder-containing porous particles, 20-30 parts of rice husk-based charcoal, 10-20 parts of humic acid chelated magnesium-calcium powder and 3-5 parts of a composite binder. The preparation method comprises the following steps: ultrasonically activating the stone powder oxalic acid, and puffing and granulating with the binder; inoculating the rice hulls with salt-tolerant bacillus and actinomycetes for aerobic fermentation and carbonization; and the shell is activated by oxalic acid and then is loaded with a humic acid calcium magnesium compound. The modifier is applied according to 50-200kg / mu, so that the nutritional ingredients and the air permeability can be improved. According to the method, solid waste recycling, solid waste consumption and landfill cost and CO2 emission reduction are achieved, and the method is suitable for ecological restoration of the coastal saline-alkali soil and has both environmental protection and economic benefits.

The invention relates to the technical field of data management analysis, in particular to an indoor radon concentration detection management method and system, and the method comprises the steps: determining that the system is in a normal operation state; obtaining the number of carbon boxes in the current detection batch, the first weight of each carbon box and the second weight after the radon concentration detection sample is put; determining whether the radon concentration detection sample is abnormal according to the first weight and the second weight; if not, enabling the system to sleep for a preset time period T, and detecting the indoor radon concentration; and after the indoor radon concentration detection is finished, obtaining detection data, and generating a data list containing the current batch number, the detection sample ID and the detection data. According to the indoor radon concentration detection management system and method, the system state information, the sample batch information and the sample weight information can be managed in a unified mode by constructing the indoor radon concentration detection management system and method of the self-control detection process, full automation of indoor radon concentration detection is achieved, the indoor radon concentration detection cost is reduced, and the detection efficiency and quality are improved.

The invention discloses a self-template synthesized linear biochar-based bimetallic material as well as a preparation method and application thereof, and belongs to the technical field of carbon materials. The method comprises the following steps: pretreating ganoderma lucidum residues, and pyrolyzing in a nitrogen atmosphere to prepare charcoal; and mixing the prepared biochar with cobalt nitrate and sodium molybdate to prepare CoMoO4 nanoparticles with in-situ growth of the biochar, and then washing and drying to obtain the BC-coated CoMoO4 linear biochar-based bimetallic material. Heterojunctions formed by binding sites of cobalt-molybdenum bimetal and biochar in the material form more defect sites, the synergistic effect of the metal and the micro-nano fibrous biochar is exerted, the degradation rate in the application of catalytic degradation of bisphenol A can reach 98.18% or above, a multiple reaction mechanism with sulfate free radicals is jointly shown, and the photocatalytic degradation of bisphenol A is realized. And the method has higher adaptability and effectiveness for complex pollutants.

The invention discloses a coated slow-release solid water-soluble fertilizer as well as a preparation method and application thereof. The coated slow-release solid water-soluble fertilizer comprises the following components in parts by weight: 15-20 parts of a nitrogen source, 8-12 parts of a phosphorus source, 15-25 parts of a potassium source, 3-8 parts of humic acid and 10-15 parts of charcoal powder, the composite material comprises the following components in parts by weight: 0.5-1.5 parts of functional microorganisms, 1-2 parts of microbial metabolite, 2-5 parts of seaweed extract and 5-8 parts of chitosan-gelatin composite material. The functional microorganisms are bacillus subtilis, bacillus licheniformis and azospirillum which are adsorbed on the charcoal powder. The coated slow-release solid water-soluble fertilizer provided by the invention has the effects of supplying nutrients and preventing and treating soil-borne diseases, achieves multiple effects by one fertilizer, and can improve the crop nutrient utilization rate, inhibit the soil-borne diseases and promote the diversity of soil microorganisms.

The invention discloses an ecological restoration matrix based on regenerated materials and a preparation method of the ecological restoration matrix, and belongs to the technical field of ecological restoration. The concrete components are as follows: 10-20 parts of a gel material, 45-60 parts of self-made modified recycled aggregate, 4-9 parts of self-made modified straw fiber, 3-8 parts of charcoal, 10-20 parts of coco coir, 3-5 parts of a pH regulator, 1-2 parts of a slow-release compound fertilizer and 40-60 parts of water. According to the ecological restoration matrix disclosed by the invention, the destroyed path of the ecological restoration matrix is greatly improved, so that the ecological restoration matrix has excellent restoration durability, and the ecological restoration matrix with a more stable continuous pore structure can also provide a longer and better growth substratum and a water vapor channel for plants; therefore, a more excellent ecological restoration function is achieved.

The invention provides a preparation method of sulfur modified biochar and application of the sulfur modified biochar in selective thallium removal in wastewater, and relates to the technical field of sewage treatment. The preparation method of the sulfur-modified biochar comprises the following steps: removing impurities from biomass, and drying; the dried biomass is sequentially subjected to ball-milling crushing and screening, and biomass powder is obtained; the obtained biomass powder is placed in a nitrogen atmosphere for a pyrolytic reaction, and the charcoal is obtained after cooling. The biochar has excellent adsorption performance on monovalent thallium (Tl < + >) in thallium-containing wastewater. According to the alfalfa biochar provided by the invention, the maximum adsorption rate of monovalent thallium (Tl < + >) in thallium-containing wastewater can be 99%, and the thallium content in the treated wastewater is lower than the national standard (lt); meanwhile, in the presence of coexisting ions, the adsorbent also has good adsorption performance (the experimental result is 95% or above). The preparation method is simple to operate, simple in equipment and low in cost.

The invention belongs to the technical field of fertilizers, and particularly relates to an alkaline biochar coated slow release fertilizer and a preparation method and application thereof, the preparation method comprises the following steps: S1, preparing modified biochar: modifying traditional Chinese medicine residues with calcium chloride, drying, and putting into a vacuum tube furnace to prepare the alkaline biochar; s2, preparation of fertilizer glue beads: dissolving a fertilizer in a sodium alginate solution, standing and defoaming, dropwise adding the mixed solution into a calcium chloride solution, and cross-linking to obtain the fertilizer glue beads; s3, coating and granulating: uniformly coating the modified biochar and fertilizer mixture on fertilizer glue beads by using a binder to obtain the fertilizer. The alkaline biochar coated slow-release fertilizer disclosed by the invention is high in utilization rate and lasting in fertilizer efficiency, and can relieve soil acidification, reduce cadmium pollution, reduce fertilization cost and environmental pollution caused by the fertilizer, effectively promote crop growth and improve crop yield and quality.

The invention relates to the technical field of preparation of composite gel beads, in particular to slow-release-repair gel beads based on a lignin carbon-fulvic acid composite material as well as a preparation method and application of the slow-release-repair gel beads. Comprising the following steps: dispersing sodium lignin sulfonate carbon powder in a fulvic acid solution, and drying to obtain a lignin biochar-fulvic acid composite material; the preparation method comprises the following steps: by taking sodium alginate as a carrier, mixing the lignin charcoal-fulvic acid composite material, ammonium bicarbonate and the carrier, dropwise adding into a calcium ion-containing solution, crosslinking to form gel beads, and sequentially filtering, washing and freeze-drying to obtain the slow-release-repair gel beads based on the lignin charcoal-fulvic acid composite material. The slow-release-remediation gel bead based on the lignin carbon-fulvic acid composite material can remarkably improve the heavy metal adsorption and fixation efficiency, has the advantages of intelligent slow release in pH response and improvement of physical and chemical properties of soil, is stable in structure, environmentally friendly, high in adaptability, multiple in effect, low in cost and high in benefit, and overcomes the defects in the prior art.

The invention belongs to the technical field of biological materials, and particularly relates to a preparation method of a KOH activated fungal mycelium biochar / chitosan composite material. According to the preparation method disclosed by the invention, Phanerochaete chrysosporium mycelium is used as a carbon source, and KOH chemical activation and chitosan surface modification are sequentially carried out, so that the charcoal / chitosan composite material CHKBC is prepared. The CHKBC material prepared by the method is large in specific surface area, developed in pore structure, rich in mesopores and excellent in adsorption performance and regeneration performance; the specific surface area is up to 3650-3920m < 2 > / g, the average pore size is 2-4nm, and both the specific surface area and the average pore size are higher than those of precursor biochar and activated biochar; the maximum adsorption capacity of tetracycline TC is 650-690 mg / g, which is far higher than that of KBC and BC. After five times of recycling, the average regeneration efficiency is higher than 90%, and the regeneration performance is good.

The invention discloses an efficient refining method for red impure copper. The efficient refining method comprises the following steps: (1) preparing calcium-cerium composite oxide powder; (2) preparing boron-phosphorus doped powder; (3) preparing a refining auxiliary agent; (4) red impure copper is put into a crucible, a medium-frequency induction furnace is adopted for heating and melting the red impure copper into a melt, the melt is covered with charcoal after being completely melted, the temperature of the melt is kept at 1110-1120 DEG C, then the refining auxiliary is added, and the mass ratio of the refining auxiliary to the melt is (3-4) kg: 1 t; and after charging, stirring the melt at a constant temperature of 1110-1120 DEG C for 10 minutes, then standing for 15 minutes, deslagging, casting and molding to obtain the refined impure red copper. After refining through the method, the tensile strength and the electric conductivity of the impure red copper can be remarkably improved, and the use performance of the impure red copper is improved.

The invention provides a polygeneration system and method for coupling wind-solar hydrogen production with CO2 capture and utilization, and relates to the technical field of green energy. The system comprises a renewable energy source driving subsystem used for providing green electric energy and preparing green hydrogen as an energy carrier and a synthetic raw material to be supplied to a multi-path utilization subsystem; the carbon source conversion and capture subsystem is used for receiving the biomass raw material, generating gasified synthesis gas and biomass charcoal through gasification reaction, and capturing and recycling CO2 in flue gas discharged by the system; the multi-path utilization subsystem is used for receiving H2, the gasified synthesis gas and CO2 and blending reaction components to realize synthesis of green methanol, conventional methanol and green ammonia; closed-loop circulation of carbon resources is formed among the subsystems through continuous conversion, capture and feedback paths of H2, CO2 and biomass charcoal. According to the scheme, efficient synergistic conversion of hydrogen and carbon resources and full-amount utilization of carbon elements can be achieved in regions with limited carbon sources.

The invention discloses a nano ardealite-based saline-alkali soil modifier and a preparation method thereof, and relates to the technical field of soil improvement, the method comprises the following steps: uniformly mixing humic acid, charcoal and a halophilic microbial agent, and then fermenting at 28-32 DEG C for 115-125 hours to obtain a fermentation system; the preparation method comprises the following steps: grinding ardealite into nano ardealite, dispersing the nano ardealite under the action of a surfactant and deionized water, and carrying out surface etching by using acid to form microdot vacancies on the surface of the nano ardealite, so as to obtain chemically modified nano ardealite; the nano phosphogypsum-based saline-alkali soil modifier is obtained by uniformly mixing the chemically modified nano phosphogypsum with a fermentation system, has the advantages of multiple effects, low cost and environmental friendliness, can significantly reduce the salinity and alkalinity of soil, improve the soil structure and promote the growth of crops, realizes the resource utilization of the phosphogypsum, and reduces the environmental pollution.

The invention relates to the technical field of organic solid waste resourceful treatment, in particular to a method for enhancing degradation of biodegradable plastic compost based on white-rot fungi and manganese modified charcoal. According to the method, manganese modified charcoal and white-rot fungi are subjected to synergistic treatment, and the efficient method for intensively degrading the biodegradable plastic through aerobic composting is constructed. The method effectively overcomes the technical bottlenecks of slow degradation starting, long degradation period and easy generation of micro-plastic residues of the biodegradable plastic in traditional compost, and realizes rapid and thorough degradation of the biodegradable plastic. Besides, the method also promotes the conversion of humus precursor substances in the compost material and accelerates and stabilizes the synthesis of humus, so that the decomposition degree of the compost product is remarkably improved, and the quality and environmental safety of the final compost product are synchronously improved while the biodegradable plastic is efficiently degraded. And an efficient and reliable solution is provided for recycling of organic solid wastes and degradation of biodegradable plastic compost.

The invention relates to the technical field of soil heavy metal pollution remediation, and particularly discloses a preparation method of iron-modified biomass charcoal, which comprises the following steps: preparing garden waste into biomass charcoal (PBC), and then carrying out iron modification by using FeCl3 to obtain iron-based biomass charcoal (PIBC). The invention further provides a method for repairing the cadmium-arsenic combined polluted soil through the iron-modified garden waste biochar. The method comprises the steps that the iron-modified biomass charcoal prepared through any method is added into the soil; the iron-modified biomass can be applied as a base fertilizer at one time, and is turned over to be fully and uniformly mixed with a plough layer of soil. By adopting the method disclosed by the invention, the bioavailability of Cd / As in the soil can be synchronously reduced, and waste resources are utilized to realize pollution control by waste.

The invention discloses an agricultural mixed fertilization machine which comprises a rack, a material box, a stirring device and a double-tilling-blade rotary tillage device, walking wheels are installed below the rack, a traction frame is installed at the front end of the rack in a hinged mode, a power transmission device is arranged on the upper wall of the rack, and the stirring device and the material box are arranged on the upper wall of the rack. The double-tilling-blade rotary tillage device is arranged on the bottom wall of the rack, and a fertilizer discharging device is arranged between the stirring device and the double-tilling-blade rotary tillage device. The invention belongs to the technical field of agricultural fertilizer application, and provides an agricultural mixed fertilizer application machine which reasonably combines and designs a plurality of treatment procedures of fertilizer stirring, fertilizer application sowing and soil rotary tillage, solves the problem of mixing of powder and chemical fertilizer particles, realizes efficient and uniform mixing of charcoal powder and chemical fertilizer particles, and improves the fertilizer application efficiency. The mixed fertilizer is fed into a plough layer, so that the utilization rate of the fertilizer is increased, and the production efficiency is improved.

The invention discloses a biochar composite material and a preparation method and application thereof.The composite material is formed by compounding reed straw biochar and bentonite, the reed straw biochar is of a fiber tube bundle structure, the interior of the reed straw biochar is of a circular pore channel structure, and the bentonite is loaded on the surface of the reed straw biochar and is of an irregular gap structure; the preparation method comprises the following steps: (1) preparing the reed straw biochar; (2) adding bentonite into a solvent, fully dispersing to form a suspension, then adding the reed straw charcoal, and mixing to form a stable mixed solution; and (3) removing the solvent from the mixed solution prepared in the step (2), and then drying to obtain the reed straw biochar-bentonite composite material. According to the biochar composite material disclosed by the invention, by virtue of the synergistic effect of a biochar porous structure and a bentonite layered structure, the persulfate activation efficiency is greatly improved.

The invention relates to the technical field of environmental remediation, and particularly discloses a soil remediation agent for heavy metal pollution and a preparation method of the soil remediation agent. The soil remediation agent is prepared from 30 to 40 parts of modified biomass charcoal, 15 to 20 parts of chitosan-humic acid composite gel, 5 to 8 parts of arbuscular mycorrhizal fungal spore suspension, 3 to 5 parts of heavy metal-resistant microbial strains, 2 to 3 parts of plant-based nano zero-valent iron, 10 to 15 parts of sodium alginate solution, 1 to 2 parts of compound enzyme preparation and 8 to 12 parts of bio-based calcium carbonate. According to the invention, the adsorption material is prepared from the waste biomass, and a dynamic response remediation system is constructed by combining microbial microencapsulation and multi-component synergistic proportioning, so that efficient fixation of heavy metals, soil ecological protection and remediation cost optimization are realized, and the problems of high reversibility risk, large ecological disturbance, insufficient soil adaptability and the like of a traditional remediation agent are solved.

The invention provides an environment-friendly treatment device for waste incineration slag, and relates to the field of waste incineration slag. The environment-friendly waste incineration slag treatment device comprises an angle adjusting assembly frame and a machining system, the machining system is installed in the angle adjusting assembly frame, and an angle adjusting assembly is used for changing the transverse inclination angle of the machining system. The processing system comprises a discharging roller, erecting assemblies are installed on the outer rings of the two ends of the discharging roller and used for supporting the discharging roller to rotate, the discharging roller is sleeved with the charcoal separating assembly, the two erecting assemblies are fixedly installed at the two ends of the charcoal separating assembly, and the discharging roller rotates relative to the charcoal separating assembly in a sealed mode. According to the environment-friendly treatment device for the waste incineration slag, by arranging the discharging roller, the charcoal crushing assembly and the charcoal separating assembly, when the discharging roller swings for discharging in a small range, air can blow up charcoal with light texture, and therefore when residual slag is used for processing building material aggregate, the charcoal content is small, and the aggregate strength is high.

The invention discloses a multi-component composite material for removing heavy metal cadmium in a water environment as well as a preparation method and an application method of the multi-component composite material. The multi-component composite material is mercaptan modified charcoal-sodium alginate / polyvinyl alcohol composite gel balls; the preparation method comprises the following steps: preparing a turbid liquid composed of a polyvinyl alcohol solution, sodium alginate and mercaptan modified biochar; the cross-linking reaction product of the turbid liquid is the composite gel ball; the multi-component composite material disclosed by the invention is high and stable in removal efficiency of cadmium in water or sediments, and the maximum adsorption capacity can reach 162.45 mg / g; and after a regeneration cycle test, the Cd < 2 + > adsorption capacity can still reach 70% or above of the initial adsorption capacity, so that the Cd < 2 + > adsorbent has good recycling performance and excellent cycle performance.

This invention belongs to the field of biomass subcritical fertilizer production, specifically relating to a mobile photovoltaic-powered subcritical fertilizer production system and its product application aimed at reducing nitrogen and phosphorus emissions, increasing efficiency, and resource-based disposal of high-moisture waste. It includes a solar preheating system, a photovoltaic power supply system, an auxiliary heating system, a hydrothermal reaction system, and a post-treatment system. The photovoltaic power supply system and auxiliary heating system are connected to the electrical load of the hydrothermal reaction system; the hydrothermal reaction system is connected to both the solar preheating system and the post-treatment system. This invention utilizes electrodialysis technology to desalinate the hydrothermal charcoal before returning it to the field. Through electrodialysis, the desalination rate of the charcoal reaches 45%-90%, and the conductivity of the desalinated charcoal is 1.40-6.75 mS / cm. The desalinated charcoal significantly increases crop yield; chlorophyll content increases by 25.5-67.5%, fresh weight increases by 18.5%-175%, and lettuce root length increases by 37.0%-98.2%. The high degree of desalination avoids the negative effects of salt stress on lettuce roots.