54results about How to "Reach resources" patented technology

The invention relates to a method of recycling valuable metals from arsenic-containing soot. The method comprises the following steps: (1) mixing acidic wastewater with white soot, controlling the pH value to 2.5-3.0, performing acid leaching at a temperature of 70-80 DEG C, and filtering to obtain leachate and lead slag; (2) replacing indium for the leachate by using zinc powder, and filtering to obtain indium slag; (3) performing rotational-flow electrodeposition arsenic removal and zinc removal on filtrate in sequence to obtain arsenic slag and zinc slag. The method disclosed by the invention can be used for purifying the acidic wastewater to reach a condition for recycling the acidic wastewater to a smelting acid manufacturing and purifying section, so that the treated acidic wastewater can be directly returned to the acid manufacturing and purifying section, and therefore, the gypsum slag is completely removed to truly achieve the purpose of zero emission. Meanwhile, the method disclosed by the invention can also be used for achieving the treatment of white soot and recycling the valuable metals, so that environmental protection and resource comprehensive utilization are achieved.

The invention relates to a method for preparing superfine calcium carbonate by adopting glycine as a dissolving agent, a modifying agent and an acid-binding agent, extracting effective calcium from calcium sources, such as carbide slag or lime, and the like and charging carbon dioxide into a reactor for calcifying, filtering and washing and application of the superfine calcium carbonate to paper making, paint production, and the like.

The invention belongs to the field of wastewater treatment technologies and resource recycling and relates to a device and method for recovering ammonia during wastewater treatment. In the invention, on the basis of chemical equilibrium and the difference of boiling points of NH3 and H2O, a principle that ammonia volatilizes and water does not volatilize when the temperature is controlled at 40-60 DEG C and the vacuum degree is controlled at 0.04-0.06MPa is adopted, and processes of vacuum and bubbling reinforced stirring and falling film heating are utilized under a lower temperature by utilizing a vacuum falling film bubbling and deaminizing device to enlarge the contact surface between a gas phase and a liquid phase and enhance the removal effect of ammonia nitrogen, and the volatilized ammonia is recovered by utilizing the negative pressure to avoid air pollution. By means of the method and the device disclosed by the invention, the advantages of high recovery rate, low energy consumption, convenience for operation and capability of continuous and intermittent production are achieved.

The invention discloses a solidifying agent for treating chromium-polluted soil, which comprises the following raw materials by weight: 40-65% of ground mineral slag, 10-20% of ground steel slag, 10-20% of meta-kaolin, 15-25% of an alkali-activator, 0-10% of pulverized coal ash, and 0-3% of ferrous chloride, wherein the free water contents of the raw materials are all not higher than 2%, and the above components are proportionally configured and uniformly mixed in a grinding machine. The product disclosed by the invention is used for solidifying chromium-polluted soil, and has both reducing property and gel property; and the dissolution rate of chromium in the solidified body is low and does not rebound with time, while the solidified body has high strength and good water resistance, and can be used for brickmaking and other building material purposes.

The invention discloses an organic fertilizer fermentation method which adopts pool type aerobic continuous fermentation. The method specifically comprises the following steps: A, uniformly mixing solid organic wastes, a microbial fermentation bacterial agent and auxiliary materials in proportion to obtain a fermentation raw material, wherein the solid organic wastes, the microbial fermentation bacterial agent and the auxiliary materials are in a ratio of (70-75) to (29.99-24.99) to 0.01, so that the carbon nitrogen ratio in the fermentation raw material is (25-30) to 1; B, carrying out primary aerobic fermentation not less than 7 days on the fermentation raw material at the temperature not lower than 55 DEG C to obtain a primary fermentation product; C, carrying out secondary fermentation on the primary fermentation product at normal temperature to obtain a secondary fermentation product within 10-15 days; and D, drying the secondary fermentation product to obtain an organic fertilizer. By using fresh chicken manure as a main fermentation raw material, the organic fertilizer fermentation method disclosed by the invention achieves the purposes of harmless treatment, recycling treatment and reducing treatment.

The invention discloses a wet desulfurization wastewater zero emission process and a device thereof; desulfurization wastewater behind a gypsum dewatering device is collected and enters a flocculation reactor, the desulfurization wastewater is softened, flocculated and clarified, and sludge is sent to a sludge processing device for dewatering; the clarified water after separation is desalted, the desalted water is reused in a desulfurization system, concentrated water is sent to an evaporation crystallization device, waste heat of a boiler flue gas is used for evaporation crystallization, and high-quality water steam is obtained after evaporation; an evaporated crystallized substance and the water steam are subjected to gas-solid separation, the high-quality water steam is sent into a desulfurization absorption tower for recycling, and the crystallized substance is discharged together with fly ash. The high-quality water steam can be completely recycled in the desulfurization adsorption tower; suspended solids, dissolved solids, heavy metals, high salt, and Ca<2+>, Mg<2+>, Cl<+> and F<-> ions and other substances are cured, separated and collected, the purpose of complete recycling of the desulfurization wastewater is achieved, and zero emissions of the desulfurization wastewater can be achieved. In addition, the method has no effect on other systems of a power plant, and has the advantages of high practicability, low investment, and wide popularization and use value.

The invention provides a method for producing marsh gas by two-phase dry-type mixed anaerobic fermentation, belonging to the technical field of renewable energy sources. The method mainly comprises the following steps: ethanol prefermentation: inoculating a certain amount of dried yeast into kitchen waste to carry out ethanol prefermentation; and methane fermentation: mixing the kitchen waste subjected to ethanol prefermentation and vinasse in a ratio of 1:1 (on the basis of VS) as a substrate for subsequent anaerobic fermentation, and inoculating long-term acclimatized sludge in a ratio of 1:1 (sludge:substrate (on the basis of VS)). The method searches the possibility of optimizing methane anaerobic fermentation by ethanol prefermentation, and optimizes the experimental conditions for ethanol prefermentation. The method can effectively relieve the problem of volatile acid inhibition in the anaerobic digestion process, and obviously enhances the methane yield, thereby enhancing the energy recovery rate. The method is simple to operate, and thus, has high practical value.

The invention relates to a method for reducing NOx emission in an FCC (Fluid Catalytic Cracking) regeneration process. The method for reducing NOx emission in an FCC regeneration process comprises the following steps of: adding a fly ash based denitration catalyst manufactured by using fly ash as a raw material into an FCC regenerator, wherein the adding quantity of the catalyst is 5% of the mass of a reactant in the FCC regenerator, petroleum coke attached to the surface or duct of the catalyst generates the gases of NOx, CO2, H2O, CO and SO2 in the combustion process, NOx and reducing gas CO directly carry out a chemical in-situ reaction of the fly ash based denitration catalyst, and the NOx is reduced into N2; while the in-situ catalytic reduction effect on the fly ash based denitration catalyst is carried out, returning regeneration flue gas in 20%-40% volume of the flue gas discharge capacity into the FCC regenerator by using an air blower, the flue gas returned into the FCC regenerator carries out a chemical in-situ reaction again of the fly ash based denitration catalyst, the NOx returned into the flue gas is reduced into N2, so that low NOx emission is realized. The reducing gas is completely provided by petroleum coke at the in-situ combination of the catalyst so that the concentration of the regeneration flue gas NOx is decreased by 50%-80%, and simultaneously the energy consumption can be decreased by 10%-30%.

The invention discloses a garbage thermal cracking treatment technology which comprises the following steps: (1) coarse crushing; (2) magnetic separation; (3) sieving; (4) fine crushing; (5) drying; (6) thermal pretreatment; (7) high temperature cracking. The garbage thermal cracking treatment technology disclosed by the invention is reasonable in design of working procedures and simple in structure, and can be used for effectively treating city household garbage and solving the problem of environmental pollution caused by the city household garbage; products, such as coke coal, tar and combustible gas, obtained from city household garbage treatment, can be collected and recycled; the garbage thermal cracking treatment technology creates new economic benefits, fully meets the requirements on reutilization, harmless treatment and reduction of garbage, and realizes zero release of garbage treatment and maximum benefit of reutilization of garbage treatment products.

The invention discloses a recycling harmless comprehensive treating method for kitchen garbage. According to the method, a receiving device, a primary crusher, a sorter, a presser, an acidifying tank, a dreg liquid tank and a fermenting tank are comprised. The treating method comprises the following steps of: receiving materials and breaking bags; primarily crushing; sorting; hydrolytic acidification; pressing and pulping and anaerobic fermentation. With the adoption of mechanical pre-treatment and post-anaerobic fermentation technology, kitchen garbage can be treated in a large scale, so that energy resource recovery of kitchen garbage can be effectively realized. Various impurities are prevented from causing failure to the operating device to the maximum degree by multiple impurity removing processes, so that the whole flow is smooth, safe and long in service life. Through serial flows, initial kitchen garbage is treated as biogas materials and improved soil materials with high value, so that resource utilization of garbage is realized. The whole process flow is simple, convenient and reasonable and good in treating effect, and the recycling harmless treating effect of kitchen garbage is realized.

The invention provides a method and device for deeply treating heavy metal wastewater. Heavy metal wastewater flows into a chemical reaction tank after being adjusted by medicating in an adjusting tank; a surfactant is added into the chemical reaction tank; particle size of heavy metals and micromolecule pollutants is increased through combined action of anionic and nonionic surfactants; after ultrafiltration separation, permeated liquor is exhausted or recycled by reaching standards through air flotation; concentrated liquor is electrically flocculated by adopting high-voltage pulses, and effluent reaches emission standards or is recycled for a production process. The heavy metal wastewater treated by the method disclosed by the invention has stable effluent water quality; meanwhile, power consumption is low and is only 1 / 5-1 / 20 that of a common electrolytic process.

The invention belongs to the technical field of energy-containing material processing, and specifically relates to an energy-containing material safe disposal and resource utilization method, and a special-purposed system for the method. The method comprises the steps that: reaction materials are prepared; feeding is carried out; an energy-removing reaction is carried out; and fertilizer preparation is carried out. Preferably, during the fertilizer preparation process, decomposed microbes are supplemented, such that the capacity for decomposing various elements needed by crops is enhanced, crop absorption and utilization are promoted, and soil fertilizing effect is enhanced. With the method and system, the energy-containing material is processed, such that the problems of environment hazards caused by waste energy-containing material burning and land-filling during a long time are solved. The waste energy-containing materials are centralized and processed, and waste is turned into valuable matters. The waste energy-containing material is concerted into fertilizer, and is used in agricultural production. Therefore, in agricultural production, an environment pollution problem brought by burning and land-filling of the waste energy-containing materials is eliminated, and great economic benefit is brought.

The invention relates to a method for cleaning smelted mixed rare earth concentrate by concentrated sulfuric acid. The method is characterized by comprising the following steps of chemically selecting and gathering mixed rare earth concentrate by use of a hydrochloric acid solution and a reinforced impurity remover, mixing the chemically-selected concrete with the concentrated sulfuric acid to roast at a low temperature, carrying out water leaching on roasted concentrate, carrying out resource recovery on a water leaching fluid, carrying out tail gas absorption, and recycling chemical-selected wastewater resources. The method has the advantages that the source of three wastes of a current concentrated sulfuric acid high-temperature roasting process is solved at the front end of concentrate treatment, so that various problems in a low-temperature acid method are solved, the follow-up three-waste treatment difficulty is greatly reduced, the rare earth direct recovery rate is increased, and the purpose of comprehensively recycling various resources in the concentrate and auxiliary materials is finally realized.

The invention provides a harmless treatment process for acidic copper-containing wastewater. According to the invention, a combined process of an extraction method, a chemical precipitation method and a Gore membrane filtration method is employed to treat copper-containing acidic wastewater, which enables copper in wastewater to be utmostly recovered as wastewater is treated, allows the harmful to be turned into the favorable and the waste to be turned into the valuable and enables secondary resource utilization of copper in wastewater to be realized; therefore, the process is favorable for environment treatment and recovery of resources and enables treated wastewater to stably reach the standard.

The invention belongs to the technical field of oil field environmental protection, and relates to a microbiological treatment technology for oil-containing silt in oil field and a processing system thereof. The method comprises seven steps of homogeneity detection, floating oil recovery, sewage discharge, microbe degradation, dehydration treatment, standard discharge of oil-containing silt, sewage purifying, and purified water reutilization, and the microbiological treatment system comprises a feeding apparatus, a microbiological treatment apparatus, a dehydrated apparatus, a sewage treatmentapparatus, a filtering apparatus, a water storage apparatus, a circulating pump, a crude oil retrieving apparatus, a control apparatus, and a circulating pump. The system has the advantages of simpleprocessing flow and short processing period, greatly recovers crude oil in the oil-containing silt, realizes harmlessness processing of the oil-containing silt, and has low cost, sewage in the system can be recycled, and a purpose of resourcing and harmlessness of the system can be achieved.

The invention discloses a recycling technology of paper making white water, which comprises the following steps: A. disposing white water to remove most of fiber and impurity; B. transmitting supernatant in the disc-typed filter to obtain the outlet water as producing water in the paper making system; C. backwashing the disc-typed filter to obtain the backwashing water in the white water pool to dispose continuously.

The invention belongs to the environment-friendly field and discloses a microbiological oil sludge treatment process. The microbiological oil sludge treatment process comprises four steps of oil sludge fluidization, biological treatment, sludge dehydration and biological induction, wherein the biological treatment step is to add candida lipolytica Y-57 with a preservation number of CGMCC (China General Microbiological Culture Collection Center) No.5790 and pseudomonas putida P-101 with the preservation number of CGMCC No.5801 into a biological reaction tank, wherein after aeration biological reaction, in terms of absolute dry mud, the oil content of the oil sludge is less than 2%, and the water contains less than 150mg / L of oil; floating oil on the upper part of water surface is recycled by an oil receiving device, fine sediment on the bottom is exhausted after reaching the standards, and the oil sludge enters the sludge dehydration step. According to the microbiological oil sludge treatment process disclosed by the invention, a microbiological treatment method, a biological induction method and a mechanical method are combined for application, so that the oil content of the sludge reaches 0.3%-standard to recover a sludge environment, thereby achieving a purpose of recycling and hazard-free treatment.

The invention discloses a northern residential district sewage processing system and method. The system comprises a grating tank, an adjusting tank, a magnetic separation water purification unit and a constructed wetland unit. The grating tank, the adjusting tank, the magnetic separation water purification unit and the constructed wetland unit are connected in order through water pipes. According to water quality characteristics of northern residential district sewage, the sewage processing system combined with a magnetic separation water purification technology and a modularized constructed wetland technology is provided, processing advantages of the magnetic separation water purification technology and the modularized constructed wetland technology to pollutants are utilized fully, processing quota of the two novel technologies are distributed reasonably, removal of suspended organic matters, suspensions and total phosphor in sewage is mainly finished during the magnetic separation water purification technology process, and removal of the total nitrogen, ammonia nitrogen and dissolved organic matters is finished by the modularized constructed wetland. The problems are solved that a constructed wetland technology unit is employed alone, the land occupation area is large, obstruction is easy to happen inside the wetland, and ammonia nitrogen and total nitrogen are difficult to meet the water quality standard.

The present invention provides an optimization method for a fertilizer wastewater treatment process. The original process comprises the following steps of: homogenizing and weight-equalizing fertilizer wastewater by an adjusting tank, pumping the wastewater from the adjusting tank to a primary aeration tank by a wastewater pump to remove part of COD (chemical oxygen demand) and toxic and harmful substances in the wastewater; and introducing the primarily settled wastewater into the front denitrification biological denitrogenation section and subsequent physical and chemical advanced treatmentsection of an anoxic tank / aerobic tank, and simultaneously adding high-efficiency microbial flora to a biochemical system. By optimizing the dissolved oxygen concentration of the primary aeration tank and nitrification liquid reflux ratio R and sludge reflux ratio r2 of the front denitrification biological denitrogenation section of the anoxic tank / aerobic tank, the optimization method improves the total nitrogen removal rate of the fertilizer wastewater from 41.1% to 66.7% (increased by 25.6%) and improves the COD and ammonia nitrogen removal rates to 95.8% and 98.8%, respectively.

The invention discloses a method and a device for microwave pyrolysis of sludge. The device for microwave pyrolysis of sludge comprises a microwave reaction device, a vapor recovery device and an oil gas recovery device in communication. The microwave reaction device comprises a microwave reaction cavity, and a first microwave generator arranged in a microwave reaction cavity enables the microwave reaction cavity to have a plurality of temperature areas in sequential temperature rise in the direction from an inlet of the microwave reaction cavity to an outlet. Microwaves serve as a heat source to substitute for a traditional heating method for microwave pyrolysis of sludge, water, pyrolysis gas and pyrolysis residues are obtained sectionally by means of sectional heating and condensation, and heat energy in a condensation process is completely used as a heat source for sludge drying, so that energy saving, environment friendly and sludge recycling are realized.

The invention discloses an ore selection method for treating tin, lead and zinc polymetallic oxidized ore. The ore selection method includes: firstly, crushing and ball-milling raw ore; then directly subjecting the raw ore subjected to ball-milling to lead and zinc oxide ore mixed floatation and feeding floating ore into foam products; feeding products in a floatation tank to a primary table concentrator for gravity concentration to obtain tin concentrate, first-section middlings and tailings; feeding the first-section middliings to a secondary table concentrator for gravity concentration to obtain tin concentrate, second-section middlings and tailings; subjecting the second-section middlings to grinding and then combining the same into the ore subjected to lead and zinc oxide mixed floatation. The foam products which are silica tailings are subjected to reverse floatation to get rid of silica, so that the products in the flotation tank are final lead and zinc mixed concentration. By the adoption of lead and zinc mixed floatation and reverse flotation of the lead and zinc mixed concentrate to get rid of the silicon, recovery rate of useful metals is increased in the mixed floatation, types and dosage of medicament are reduced, environmental pollution is low, and purposes of conforming to the state policy of cleaner production and circular economy and achieving energy conservation, emission reduction, consumption reduction and comprehensive utilization of resources are achieved.

The invention relates to a method for preparing an organic fertilizer for rice from kitchen waste and sawdust through combined composting, which specifically comprises the following steps of: sorting,leaching and drying original kitchen materials into granular kitchen raw materials with the water content of 10-30%, adding sawdust with the water content of lower than 10% and the particle size of 1-3cm into the granular kitchen raw materials, and adding a VT microbial agent into each cubic meter of compost, uniformly stirring and mixing, fermenting by adopting a strip-chopping type composting aerobic process, dynamically monitoring the temperature of the compost in the fermentation process, and stirring and turning the compost when the temperature rises to 65 DEG C or above, so as to reducethe temperature to 60 DEG C or below; maintaining the temperature of the high-temperature stage at 55-65 DEG C for 5-7 days, and quickly fermenting the strains in the high-temperature stage; and thenturning and stirring once every five days until the temperature of the pile body is reduced to the ambient temperature. The organic matter content of the fertilizer prepared through the method reaches 90% or above, the moisture content is lower than 25%, the nitrogen content is higher than 5%, and when the fertilizer is applied to a paddy field, the yield, taste and aroma of rice can be remarkably improved, and the yield is averagely improved by 20% or above.

The invention discloses a cold region livestock and poultry breeding sewage treatment method. The cold region livestock and poultry breeding sewage treatment method comprises following steps: S1, sewage is delivered through a filtering basin, wherein filtering is carried out at a water inlet, a middle part, and a water outlet of the filtering basin using a filter screen; S2, after filtering, low temperature decomposition microorganism colonies are added into water for 3 to 5 days of reaction; S3, the processed water is subjected to coagulation, deposition, and filtering treatment; S4, after coagulation and filtering treatment, the water is delivered into an ozone reaction device, ozone is added for 4 to 5min of ozonization; S5, after ozonization, the processed water is delivered into a biological contact oxidation pond for 0.5 to 1h of biological contact oxidation; and S6, the water processed via biological contact oxidation is delivered into an anaerobic pond, is heated to 15 to 20 DEG C with solar energy, low temperature decomposition microorganism colonies are added at the same time, and the water is subjected to reaction for 5 to 7 days; and S7, disinfection is carried out using an ultraviolet ray sterilizer so as to obtain water for up-to-standard discharge. The cold region livestock and poultry breeding sewage treatment method is simple, is high in efficiency and low in cost, and is capable of solving water pollution problems caused by livestock and poultry breeding.

The invention discloses a heavy metal contaminated soil degradation harmless treatment method which comprises the following steps: S1, detecting and analyzing heavy metal contaminated soil, and determining the dosage of a heavy metal contaminated soil degradation repairing agent; S2, preparing the heavy metal contaminated soil degradation repairing agent; S3, leaching; S4, applying the heavy metal contaminated soil degradation repairing agent, and performing ploughing and mixing; S5, planting plants which are suitable for local growth and have enrichment capacity; and S6, detecting until the heavy metal content in the soil reaches the safety standard. Harmless treatment of the heavy metal contaminated soil is achieved, and the requirements of resource utilization, soil replacement and landfill are met; the technology application range is wide, and the method is suitable for remediation of various soils contaminated byheavy metals,including chromium, hexavalent chromium, lead, zinc, copper, chromium, nickel, mercury, arsenic and the like; the technical operation is simple and convenient, the repairing time is short, the capacity increase is less, secondary pollution is avoided, and the cost is lower; and the resource utilization of the polluted soil can be realized, and the repaired soil is suitable for various purposes.

The invention discloses a resourceful treatment system for kitchen wastes and farm produce fair garbage and a process flow thereof. The system disclosed by the invention comprises a garbage storage cabin, a garbage crane, a bag-breaking device, a crushing device, a pulping and separating device, an impurity-removing device and an anaerobic fermentation biogas-generating system which are successively arranged, wherein the outlet of the bag-breaking device is connected to the inlet of the crushing device; the outlet of the crushing device is connected to the inlet of the pulping and separating device; the outlet of the pulping and separating device is connected to the inlet of the impurity-removing device; and the outlet of the impurity-removing device is connected to the inlet of the anaerobic fermentation biogas-generating system through a pipeline where a material pump is arranged.

The invention provides a method for preparing ultra-light high-strength ceramic aggregate from dredged bottom mud and nearshore high-sand content mud, which comprises the following steps: (1) uniformly mixing dried bottom mud dredged from a lake, a river or an ocean and straws of water plants according to a volume ratio of 5-12:1-0.2 to obtain fresh pellets, adding nearshore high-sand content mud to the fresh pellets used as seed pellets, and rolling into finished fresh pellets; and (2) burning the prepared finished fresh pellets at 950-1350 DEG C for 30-60 minutes, and naturally cooling to obtain the ultra-light high-strength ceramic aggregate. The invention solves the problem of mass production caused by scarce resources, and solves the problem on stacking and processing polluted bottom mud dredged from lakes and rivers. At the same time, the invention overcomes the defect of the low strength of the traditional ultra-light ceramic aggregate, and achieves the purposes of the harmless processing and the recycling of waste. Besides, the prepared ultra-light high-strength ceramic aggregate has the characteristics of low specific gravity, adjustable particle size, high strength and high stability.

The invention discloses a method for recovering crude oil in petroleum oil sludge and recycling residual mud and sand. The method comprises the steps of A, pretreatment-crude oil extraction-co-incineration: drying the oil sludge to a constant weight at a certain temperature and measuring a heat value of the oil sludge; B, a crude oil extraction process: mixing the oil sludge with an organic solvent according to a certain weight ratio, stirring at a certain temperature, and filtering to obtain oil phase and raffinate phase oil sludge; C, an organic solvent recovery process: selecting a boiling point of the organic solvent, recovering the organic solvent at 100 DEG C under the normal pressure through a distillation recovery device, and recycling the organic solvent; and D, a co-incineration process: drying the raffinate phase oil sludge, mixing the dried raffinate phase oil sludge with municipal sludge ash according to a certain ratio, measuring a heat value of a mixture, and performing incineration at 800-1,000 DEG C. The method is easy to implement and simple and convenient to operate; the crude oil subjected to extraction is recycled; the residual raffinate phase oil sludge still can take effects and is subjected to co-incineration together with the municipal sludge ash; and the heat value of the oil sludge is fully utilized.

The invention discloses a hierarchical resource management method, device and system for a hyper-converged infrastructure and a computer readable storage medium. According to the hierarchical resourcemanagement method, device and system, input and output data of each virtual machine image in the hyper-converged infrastructure is obtained in real time, and then a miss rate curve of each virtual machine image is calculated according to the input and output data; the miss rate curve can represent hierarchical resource usage efficiency of the virtual machine image; an appropriate resource allocation proportion is generated according to an objective function generated in real time and the miss rate curve of each virtual machine image; finally resource management is performed on each virtual machine image according to the resource allocation proportion, appropriate hierarchical resources are distributed for different virtual machine images intelligently, to achieve the goal of resource isolation and storage performance maximization, and the storage performance and service quality can be improved without significantly increasing memory and computing overhead.

The invention discloses building waste concrete-brick mixed self-repairing concrete and a preparation method thereof. The preparation raw materials of the self-repairing concrete comprise a concrete and self-repairing recycled concrete-brick mixture, and the self-repairing recycled concrete-brick mixture accounts for 15%-45% of the self-repairing concrete in percentages by volume; the volume ratioof self-repairing recycled coarse aggregates to self-repairing recycled brick aggregates is 1-4: 1-3; the self-repairing recycled coarse aggregates are prepared by impregnating the recycled coarse aggregates with bacillus pasteurii liquid, and the self-repairing recycled brick aggregates are prepared by impregnating recycled brick aggregates with the bacillus pasteurii liquid; the OD value of thebacillus pasteurii liquid is 1-1.3; in terms of mass percentage, the mass content of the bacillus pasteurii liquid accounts for 0.065% of the recycled coarse aggregates, and the mass content of the bacillus pasteurii liquid accounts for 0.085% of the brick aggregates. The building waste concrete-brick mixed self-repairing concrete has the advantages of being high in repairing efficiency and beneficial to recycling application of construction wastes.

The invention provides a small filament rubbing machine device and a method for treating farmland waste through an aeration fermentation house. The small filament rubbing machine device comprises a power output device and a filament rubbing shaft. The aeration fermentation house is utilized to perform a fermentation treatment method on materials crushed by the filament rubbing machine, so that water of the materials can be reduced to be 30% or lower, and therefore, a treatment process is convenient to operate, and is simple and practical. Equipment integration of the crushing and filament-rubbing machine, the aeration fermentation house and a composite decomposing microbial inoculums can achieve upstream and downstream connection of filament rubbing machines of different models and the aeration fermentation house, and heat of all fermentation and dehydration processes is from biological heat energy and solar energy, so that the agricultural organic solid waste problem is radically solved, and therefore, the purposes of innocent treatment, reduction and reclamation are achieved, a drive and demonstration effect on industrial development of the solid waste is achieved, and the healthy industrial development is supported.