55 results about "Source reduction" patented technology

The present invention relates to a composite microbial agent and its use in the remediation or management of chlorinated hydrocarbon contaminated sites. The composite microbial agent comprises composite microorganisms, wherein the composite microorganisms include Gordonia, Pseudomonas, Pseudomonas, and Terrestria in a viable cell count ratio of 100:(25-600):(10-900):(10-500). The present invention effectively addresses the difficulty in remediating chlorinated hydrocarbon contaminated sites, overcomes the problems of low mass transfer efficiency and limited microbial activity of traditional remediation technologies, and improves the efficiency of remediation and risk management of chlorinated hydrocarbon contaminated sites. The agent is particularly suitable for green and efficient remediation of soil and groundwater in silty soil sites, pollution source reduction, and risk management. Furthermore, the agent offers advantages such as low cost and ease of operation, and thus has significant application prospects.

The invention discloses a method for repairing alkaline cadmium-polluted farmland in arid and semi-arid regions and application of the method, and belongs to the technical field of soil repairing. According to the method, the alkaline cadmium polluted farmland soil in the arid and semi-arid areas is subjected to deep ploughing treatment, and organic materials are applied to improve the soil fertility and the environment and health quality. On the basis, an intercropping planting system suitable for the arid and semi-arid land area is constructed, low-cadmium-accumulation grain crops and high-cadmium-accumulation plants are reasonably selected according to the ecological conditions and crop characteristics of the area, and an intercropping combination of low-absorption grain crops and enriched economic crop plants is formed. According to the system, organic unification of source reduction of heavy metal pollution in soil, pollution control in the planting process and continuous and safe utilization of the farmland is achieved, the dual goals of pollution remediation and farmland production are taken into account, and pollution reduction and collaborative improvement of economic benefits are achieved; and a feasible technical path is provided for ecological restoration of alkaline heavy metal polluted farmlands in arid and semi-arid regions.

The invention discloses a sludge source reduction device, which comprises: a drying unit, which comprises a shell, hollow shafts are symmetrically and rotatably arranged on the shell, and a plurality of hollow blades are slidably connected to the hollow shafts along the axial direction; the steam guide unit comprises a plurality of rotating shafts, a plurality of cavities are symmetrically formed in the hollow shafts, hook-shaped baffles are fixedly connected to the rotating shafts, gears are fixedly connected to the rotating shafts, toothed plates are slidably inserted into the hollow shafts in a penetrating mode, and movable assemblies used for driving the toothed plates are arranged between the hollow blades and the toothed plates; a clamping assembly used for limiting the toothed plate is arranged in the cavity, and a reset assembly used for resetting the toothed plate is arranged in the cavity. Through blocking of the hook-shaped baffle, hot steam is made to flow back, a large amount of heat of the hot steam is concentrated at the feeding end, and the heat is efficiently utilized.

The invention discloses a preparation method of recycled concrete, which comprises the following steps: carrying out pre-wetting treatment on waste concrete to enable the pre-wetting rate in the waste concrete to be greater than or equal to 70%, and taking the maximum water content of the waste concrete as the pre-wetting rate of 100%; after the surface of the pre-wetted waste concrete does not have obvious water stains, carrying out concrete crushing treatment, and then screening to obtain regenerated coarse aggregate; and mixing the recycled coarse aggregate with natural gravel and ingredients to obtain the recycled concrete. According to the preparation method, the dust amount in the production process can be reduced, meanwhile, the yield of the recycled coarse aggregate is effectively increased, the prepared recycled concrete can be used for concrete construction of on-site cushion layers, construction roads, temporary roads and the like, source reduction, process control and cyclic utilization of construction waste are achieved, and the purposes of green construction and resource saving are achieved.

The application discloses a kind of green and efficient pig breeding method and system, belong to the technical field of animal husbandry breeding.The method of the application includes four steps of preparation, management in the period of nursing and fattening, processing in the period of leaving and cleaning, resource recycling and facility maintenance.By spraying photocatalysis-microorganism composite functional coating on the surface of pig house, combined with AI visual dynamic precise feeding, source reduction is realized;By using bionic electronic nose and ventilation, deodorization system linkage, process intelligent control is realized;By using electrochemical circulating water washing, waste heat coupling biological filter or shared deodorization container, end efficient purification and small and medium field adaptation are realized;Finally, wastewater and waste material are recycled.The application solves the problems of unstable effect, high energy consumption, low intelligent degree, poor adaptability of small and medium field of existing odor control technology, and has the advantages of source reduction precision, process control in situ, end treatment closed loop, operation intelligence and easy popularization of small and medium field.

The invention discloses a flue gas deacidification agent performance evaluation system and method, and belongs to the technical field of environmental protection. The system comprises a flue gas input module, a medicament spraying module, a reaction module and a detection module which are uniformly controlled by a PLC (Programmable Logic Controller). The system is characterized in that the concentration of acid gas in tail gas is monitored in real time through a detection module, the injection concentration of a medicament is dynamically fed back and adjusted by adopting a cascade PLC control strategy, and actual engineering control logic is simulated; and the cyclone separator and the high-precision weighing ash hopper are integrated, so that the real-time accurate metering of the reaction ash yield is realized. The evaluation method comprises three stages of preparation, reaction and evaluation, and can synchronously and accurately evaluate the deacidification efficiency and economy of the deacidification agent and the influence on the fly ash yield. A reliable experimental platform and evaluation means are provided for developing high-quality deacidification agents, and optimization of waste incineration flue gas purification and reduction of sources of fly ash are facilitated.

The invention discloses a household garbage incineration fly ash low-temperature pyrolysis flue gas coupling treatment system and method, and belongs to the field of household garbage incineration fly ash treatment. The system comprises a fly ash pretreatment unit, a pyrolysis unit, a protective gas supply unit and a flue gas purification unit, according to the invention, CO2 obtained by carbon capture of waste incineration flue gas is used as a pyrolysis protection gas, fly ash and an additive are mixed and stirred and then are fed into a pyrolysis unit to complete low-temperature pyrolysis, after the pyrolysis flue gas is subjected to multi-stage purification, the flue gas rich in CO2 can be recycled to a carbon capture process, and the flue gas reaching the standard is directly discharged and is matched with a dust returning and recycling structure. According to the invention, pollutant source reduction and carbon emission reduction are realized, system energy consumption and operation cost are reduced, coupling modification with existing incineration plant facilities can be realized, and stable and up-to-standard emission of flue gas is ensured.

The invention belongs to the technical field of household garbage incineration regulation and control, and particularly discloses a household garbage incineration fly ash pollution characteristic prediction and regulation and control method and system. According to the method, after basic characteristic data such as the fly ash heavy metal content, the blending combustion material type and the calcium content are input, the leaching risk of the fly ash heavy metal can be predicted, namely passive'end detection 'is changed into active'source prediction', the fly ash environment risk can be predicted in advance, and a time window is reserved for regulation and control. On the other hand, on the basis of the prediction result, by adjusting the feeding ratio or process parameters, the environmental risk of the fly ash is controlled from the source, excessive adding of expensive stabilizing agents at the tail end is reduced, the full life cycle cost of fly ash treatment is reduced, and meanwhile the environmental risk is reduced from the source.

The invention discloses a cement raw material low-carbon decomposition method. The decomposition method comprises the following steps: carrying out a reaction on a cement raw material and a carbon-containing solid in a reaction furnace system, calcining, crushing, and adding gypsum, the cement raw material comprises calcium carbonate. Carbon-containing solids (coal, coke and biomass charcoal) are mixed with a cement raw material, a one-step reaction from CaCO3 + C to CaO + 2CO is directly carried out in a reaction furnace at 800-900 DEG C, a traditional calcium carbonate thermal decomposition path is replaced, and carbon emission in the process of carbonate is reduced from the source. Carbon monoxide gas generated by the reaction is recycled by a separation system and is used for synthesizing high-value chemicals such as methanol; and calcining the solid-phase product in a rotary kiln to obtain the high-iron-content cement clinker. The method can directly reduce carbon emission in cement production, can produce by-products of chemical raw materials, and has both environmental protection property and economical efficiency.

The invention discloses a sewage treatment method capable of reducing sludge production, which comprises the following steps: S1, sewage firstly enters an anaerobic hydrolysis reactor for hydrolytic acidification, and then the sewage enters an anaerobic sludge interception reactor; s2, carrying out nitrogen and phosphorus removal and organic matter degradation on the water treated in the step S1; s3, the water body subjected to biochemical treatment in the step S2 enters a secondary sedimentation tank, and solid-liquid separation is completed; s4, residual sludge discharged from the secondary sedimentation tank and the anaerobic sludge interception reactor is collected in a sludge tank and then enters a sludge concentration tank, and the water content of the sludge is reduced; s5, the concentrated sludge enters a special aerobic starvation reactor; s6, dehydrating equipment is used, and the treated mud cakes are made into dry and hard mud cakes. According to the method, the sludge yield is reduced from the source, and the potential pressure on the environment is fundamentally relieved; no harmful chemical agent is added in the process, so that secondary pollution is avoided; the reduced sludge is more stable, and favorable conditions are created for subsequent safe resource utilization.

The invention relates to a compound microbial agent and application thereof in repairing or controlling chlorinated hydrocarbon contaminated sites, the compound microbial agent comprises compound microorganisms, and the compound microorganisms comprise Gordonia, pseudomonas, pseudoxanthomonas and geomonas in a viable count ratio of 100: (25-600): (10-900): (10-500). The method effectively solves the problem that the chlorohydrocarbon contaminated site is difficult to repair, overcomes the problems of low mass transfer efficiency, limited microbial activity and the like of the traditional repair technology, improves the repair and risk management and control efficiency of the chlorohydrocarbon contaminated site, and reduces the construction cost. The method is especially suitable for green and efficient remediation of soil and underground water in silt soil sites, pollution source reduction and risk management and control, has the advantages of low cost, convenience in operation and the like, and has important application prospects.

This invention discloses a monitoring system and method for the synergistic treatment of odor and dust from landfill excavation, relating to the field of dust separation. The invention collects real-time pipeline gas composition data and automatically adapts the optimal operating parameters of a scrubbing tower via model mapping, reducing the core odor load at the source. Then, targeted dust removal operations eliminate the interference of dust on deodorization, while simultaneously collecting fog cannon operating parameters, meteorological data, and initial odor concentration. The mapping model accurately predicts the deodorization effect and the adhesion of the isolation layer's reagents. Based on a preset threshold, a hierarchical iterative optimization mechanism is constructed. First, the fog cannon parameters are adjusted to achieve rapid compliance. If the maximum number of repetitions is still insufficient, the scrubbing tower operating parameters are optimized in reverse, forming a cross-equipment collaborative closed-loop adjustment. This ensures stable compliance with odor control standards while strictly controlling the amount of reagents adhering to protect the isolation layer and prevent membrane aging and erosion, while also reducing manual intervention and energy waste.

The utility model relates to the technical field of waste gas treatment, in particular to a floating top cover capable of reducing the volatilization amount of source waste gas, which comprises a hydrolysis tank, a facultative tank is arranged on the outer side of the hydrolysis tank, a first observation port and a second observation port are arranged at the top of the hydrolysis tank, and an overflow port is arranged between the hydrolysis tank and the facultative tank; by arranging the floating cover, volatilization of VOCs can be effectively and continuously reduced on the liquid level for a long time, a very good balancing effect on saturated vapor pressure on the liquid level is achieved, the load of a tail end treatment facility is greatly reduced, the effects of safety, environmental protection, energy conservation and emission reduction are achieved while standard emission of VOCs is guaranteed, emission of carbon dioxide is indirectly reduced, and the environmental protection effect is achieved. By means of source reduction of the floating top cover and cooperative emission reduction of the tail end treatment facility, waste gas emission is reduced, the operation load of the tail end treatment facility is reduced, energy consumption is reduced, and a demonstration effect is provided for follow-up waste gas treatment.

The utility model belongs to the technical field of sewage treatment, and particularly relates to an enhanced biological low-carbon water purification system which comprises a front-end pretreatment and compound microorganism domestication subsystem, a filler microorganism fixed bed water purification subsystem and a soil filler percolation purification microorganism remediation subsystem, the front-end pretreatment and compound microorganism domestication subsystem comprises a resident group, a three-stage septic tank and a grating adjusting tank, the filler microorganism fixed bed water purification subsystem comprises an EMR purification tank, and the soil filler percolation purification microorganism remediation subsystem comprises a soil permeation area. The resident group, the three-stage septic tank, the grid adjusting tank, the EMR purification tank and the soil permeation area are connected in sequence. According to the utility model, a low-carbon ecological management and control technology is applied, nitrogen and phosphorus resources are recycled, water resources are reused, the energy consumption and the cost of rural sewage treatment are reduced, the stability and the maintainability are improved, and the pollution load is reduced from the source; meanwhile, the water pollution absorption capacity is enhanced, and a long-acting self-cleaning mechanism is formed.

This invention belongs to the field of aquatic product preservation technology and discloses a method for preserving fresh fish fillets based on source-based sterilization and endogenous antibacterial action. The method includes: non-thermal sterilization of fresh fish fillets, followed by ultrasonic-ultra-high pressure synergistic treatment in a nano-antibacterial emulsion, then draining, packaging, and refrigeration. The nano-antibacterial emulsion is prepared by dissolving natural antibacterial active substances in anhydrous ethanol as the oil phase and using an aqueous solution of a natural polymer as the aqueous phase. The oil and aqueous phases are mixed, homogenized under microfluidic high pressure, and then microfiltered. This invention utilizes a dual-core synergistic process of source-based non-thermal targeted inactivation of spoilage bacteria and enhanced penetration of a natural antibacterial system to significantly extend the shelf life of fresh fish fillets under 0-4℃ refrigeration conditions from the conventional 3-5 days to over 18 days, while preserving the texture, flavor, and nutrition of the fish fillets to the greatest extent possible.

The invention provides a source-reduced distributed kitchen waste treatment process and system, and belongs to the technical field of kitchen waste treatment.The process comprises the steps that a primary treatment device is arranged in a source unit for oil recovery; arranging a grease recovery center in the divided area, and sending all grease recovered by the primary treatment device in the divided area to the grease recovery center for treatment to obtain mixed oil; a plurality of kitchen waste treatment stations are arranged in the divided areas, kitchen waste separated by the primary treatment devices located in the divided areas is sent to the kitchen waste treatment stations nearby to be subjected to microbial degradation, and the organic bacterial fertilizer is obtained. According to the invention, the primary treatment device is arranged in a source unit, so that source reduction can be realized, and the operation cost can be reduced. And the grease recovery center is matched with the kitchen waste treatment stations, so that the kitchen waste in the divided areas can be effectively subjected to resourceful treatment, and resource recycling and resource maximization are realized.

The present application belongs to the technical field of organic synthesis, and particularly relates to a method and system for preparing diisopropyl peroxydicarbonate based on a micro-channel reactor. The present application uses a heart-shaped micro-channel reactor, pumps raw material potassium hydroxide solution and hydrogen peroxide solution from the inlet of the first piece, and pumps raw material isopropyl chloroformate from the inlet of the fourth piece, thereby realizing safe production in the preparation process of diisopropyl peroxydicarbonate, stable operation of the reaction, a substantial reduction in reaction time, accurate control of reaction temperature by a high-low temperature all-in-one machine, timely removal of heat, reduction in side reactions, a substantial increase in product yield, and finally obtaining a product with a yield of 99.5%, realizing source reduction in the preparation process, a reduction in energy consumption and raw material consumption per unit product, and fully meeting the strategic orientation of national green chemical industry and clean production. Meanwhile, the method of the present application can significantly reduce production cost, fill in the technical gap, enhance market competitiveness, and can be widely promoted.

The application discloses a landfill excavation odor and dust collaborative treatment monitoring system and method, relates to the dust separation field, and automatically adapts the optimal operation parameters of a washing tower through real-time collection of pipeline gas component data, so that the core odor load is reduced from the source; the interference of dust raising on deodorization is eliminated through targeted dust removal operation, operation parameters of a fog gun, meteorological data and initial odor concentration are synchronously collected, and the deodorization effect and the adhesion of the isolation layer medicament are accurately predicted with the aid of a mapping model; a hierarchical iteration optimization mechanism is constructed with a preset threshold as a benchmark, rapid standard reaching is realized by adjusting the fog gun parameters, and if the maximum number of repetitions is reached and the requirement is still not met, the operation parameters of the washing tower are reversely optimized, cross-device collaborative closed-loop adjustment is formed, odor treatment is stably up to standard, the adhesion amount of the medicament is strictly controlled to protect the isolation layer, membrane body aging and erosion are avoided, and manual intervention and energy consumption waste are reduced.

The invention discloses a low-noise clean water cleaning and sterilizing all-in-one machine and a cleaning and sterilizing method. The method is used for municipal sewage source reduction and sludge collaborative reduction. According to the method, chemical detergents are not needed in the whole process, after coarse paper is pretreated, a to-be-cleaned object is placed on a rotary tray, water flow is generated through a high-pressure pump and forms cleaning jet flow with the cavitation effect through a gas-liquid mixing mechanism, the cleaning jet flow is sprayed to the surface of the to-be-cleaned object, scanning type cleaning and disinfection are achieved in combination with rotation of the tray, and sewage is discharged instantly. The clean water cleaning and sterilizing all-in-one machine comprises a mounting cabinet, a cleaning cylinder, a high-pressure pump, a gas-liquid mixing mechanism, a reversing valve, an upper / lower nozzle, a hollow tray, a tray rotating motor, a lifting arm, a flow guide central column, a noise reduction module and a control module. The synergistic effect of macroscopical scouring and cavitation microcosmic stripping is utilized, the cleaning and sterilizing efficiency is remarkably improved, sewage source reduction and sludge collaborative reduction are achieved, and the method is environmentally friendly and efficient.

The application relates to an intelligent pretreatment system for building decoration garbage and a treatment process thereof, which comprises a collecting and distributing box, a feeding port arranged at the top of the collecting and distributing box body, a plurality of recovery chambers arranged in the collecting and distributing box body, a main conveying belt arranged above the recovery chambers, a crushing unit in communication with the feeding port and used for crushing the building decoration garbage, a delivery unit, a spiral screening unit, an airflow separation unit, a metal removal unit, a sorting unit and a dust collecting unit, wherein the spiral screening unit, the airflow separation unit, the metal removal unit and the sorting unit are installed on the conveying belt, and the dust collecting unit is arranged beside the conveying belt. Compared with the prior art, the application can efficiently separate the building decoration garbage with different components, realize maximized utilization of resources, and promote source reduction of the building decoration garbage.

The invention discloses a combustion control method and system for a heating furnace, a medium and computer equipment, and aims to create reaction conditions for SNCR (selective non-catalytic reduction) denitration by reducing furnace temperature set values of a preheating section and a first heating section, accurately controlling matching of the furnace temperature and a denitration reaction temperature window and reducing interference factors such as oxygen concentration and the like. And the regulation mode of'set period + fixed amplitude 'is adopted to avoid combustion condition disorder, closed-loop dynamic control is realized, the combustion atmosphere in the furnace can be accurately controlled, and the generation amount of nitrogen oxide is reduced from the source, so that the SNCR denitration efficiency is improved, and stable operation of the system is guaranteed.

The application relates to the technical field of water collection and drainage, in particular to an assembled linear sponge type water collection and drainage facility, which comprises an egg-shaped drainage ditch and a linear water collection and sponge type drainage side ditch, the linear water collection and sponge type drainage side ditch comprises a plurality of modular drainage ditches, the plurality of modular drainage ditches are distributed along the length direction of a road, the modular drainage ditch comprises a buried section and a kerb, the egg-shaped drainage ditch is arranged in the buried section, the egg-shaped drainage ditch is arranged along the length direction of the road, the top of the egg-shaped drainage ditch is provided with a linear water collection structure, and a continuous and gradually expanding water passing channel is formed by the top opening of the egg-shaped drainage ditch; a plurality of sponge type water seepage holes are arranged on the side of the egg-shaped drainage ditch, the sponge type water seepage holes are located on the lower side of the center of the egg-shaped drainage ditch, and the plurality of sponge type water seepage holes are uniformly arranged along the arrangement direction of the egg-shaped drainage ditch; and the application has the effects of facilitating source reduction and reducing the runoff of rainwater.

The invention discloses a method and a device for producing and co-producing high-whiteness gypsum by phosphorus-sulfur wet-process phosphoric acid based on flue gas desulfurization of phosphoric ore pulp acidolysis solution, and the method comprises the following steps: (1) reacting phosphate ore or phosphate rock powder with phosphoric acid in an acidolysis tank, controlling the temperature to be 75-95 DEG C and the liquid-solid mass ratio to be (3-4.5): 1, filtering after full reaction, and discharging residues, the filtrate is a solution of which the main component is Ca (HPO); and (2) introducing the SO-containing flue gas into an absorption tower, and fully reacting Ca (H2PO4) 2 in the filtrate with SOunder the catalysis of metal ions to generate calcium sulfate hemihydrate precipitate and wet-process phosphoric acid. The phosphoric acid is used for decomposing the phosphorite to prepare Ca (H, PO), the absorption liquid is used for purifying the sulfur-containing flue gas to prepare the phosphoric acid, the phosphorite decomposition rate and the phosphogypsum source reduction are greater than 99%, and the generated phosphoric acid and semi-hydrated gypsum meet related product standards. According to the method, the defect of gas-liquid-solid mass transfer of traditional ore pulp desulfurization is eliminated, gas-liquid mass transfer is changed, the mass transfer efficiency is remarkably improved, 100% elimination of sulfur dioxide is achieved, the process is simple, and the method has great industrial application prospects.

The utility model belongs to fluorine chemical industry technical field especially relates to a hydrogen fluoride recovery production device, including the dehydrofluorination kettle, primary condenser, secondary condenser, hydrogen fluoride receiving tank, hydrogen fluoride dehydrofluorination kettle and tail gas absorption device that are sealed and connected in proper order through pipeline, a plurality of stirring paddles are arranged in the dehydrofluorination kettle, the dehydrofluorination kettle outside is provided with steam jacket, primary condenser is connected with the dehydrofluorination kettle top, secondary condenser is connected with primary condenser export, hydrogen fluoride receiving tank is connected with primary condenser and secondary condenser, hydrogen fluoride receiving tank outside is provided with brine jacket, hydrogen fluoride measuring tank is connected with hydrogen fluoride receiving tank, tail gas absorption device is connected with secondary condenser. The utility model makes excess HF from the organic phase volatilization, through the high -efficient liquefaction recovery of primary and secondary condenser, has improved the recovery rate, has reduced HF waste significantly, has reduced raw material unit consumption, has reduced waste acid emission from the source.

This invention provides a method for the synergistic control of H2S and CH4 emissions from wastewater by microorganisms and iron. The method includes adding a microbial agent and a ferric iron source to the wastewater to be treated; the microorganisms in the microbial agent include one or both of Bacillus subtilis and Saccharomyces cerevisiae; the inoculation concentration of the microorganisms is (1-2) × 10⁻⁶. 7 CFU / mL, the concentration of the ferric iron source is 5-30 mg Fe·L⁻¹ ‑1 The method for controlling the emission of H2S and CH4 in wastewater through the synergistic effect of bacteria and iron provided by this invention achieves simultaneous and efficient source reduction of H2S and CH4 in wastewater by constructing a synergistic system of microbial agents and ferric iron. While ensuring excellent emission reduction effect, it also takes into account the economic efficiency and engineering operability, and has broad application prospects.

The invention relates to a compound microbial agent and application thereof in repairing or managing and controlling a persistent organic pollution site, the compound microbial agent comprises compound microorganisms, and the compound microorganisms comprise pseudomonas, Bordetella, Island bacteria and Brucella in a ratio of (0.1-10): (0.1-10): (0.5-1): 1. The remediation efficiency of the persistent organic pollution site is improved, and the method is particularly suitable for green and efficient remediation of soil and underground water of the sandy soil site and pollution source reduction risk management and control and has the advantages of being low in cost, convenient to operate and the like, so that the method has important application prospects.

This invention discloses a method for controlling and reusing nitrogen and phosphorus pollution at the source in farmland by intercepting wastewater. The method includes: excavating furrows, collection ditches, and ecological purification ponds; constructing two dividing dams within the ecological purification pond to separate it into a water storage area, a facultative oxidation area, and a deep ecological treatment area; the water-facing side of the dividing dams is divided into a partially permeable structure and a permeable structure from bottom to top, with a water-stopping stepped transition structure between the two; the water-repellent side of the dividing dams is a fully permeable structure; and functional microbial communities and plant systems are deployed in the water storage area, facultative oxidation area, and deep ecological treatment area. This method enables synergistic collection and end-of-pipe purification of farmland wastewater, achieving gradient process interception of nitrogen and phosphorus in farmland, significantly improving the graded purification efficiency of nitrogen and phosphorus pollutants, and balancing process purification efficiency with system operational stability.

The invention relates to the technical field of open-pit mine mining, and provides an open-pit stope development system reconstruction method, device, equipment and medium, and the method comprises the following steps: when a stope internal dumping space is not formed in an open-pit stope, constructing an internal dumping site conversion space; after the inner dumping condition is met, the stripped waste rocks are temporarily stacked to an inner dumping site conversion space from bottom to top according to a preset path; when it is detected that the inner row working line is about to cover the original development transportation line, a new replacement development transportation road is constructed through waste rocks; when the distance from the pressure covering area of the inner dumping site conversion space reaches a preset distance, calculating the volume of a stope space formed by the current mining and stripping operation and the volume of a space required by inner dumping and stripping of waste rocks, and judging the accommodating capacity of the stope space; and according to the judgment result, the inner dumping site conversion space is treated, and the pressing and covering area is released till inner dumping operation is completed. By means of the technical scheme, the dual purposes of solid waste source reduction and mining efficiency improvement are achieved, and the construction and operation and maintenance cost of the waste dump is reduced.

The utility model discloses an anaerobic sidestream sludge reduction-based AAO oxidation ditch sewage treatment device, which has a sludge source reduction function, adopts an anaerobic-anoxic-oxidation ditch for nitrogen and phosphorus removal, and consists of an anaerobic tank, an anoxic tank, an oxidation ditch, a sedimentation tank and an anaerobic sidestream reactor, the anoxic tank and the anaerobic tank share a partial wall body, the oxidation ditch and the anoxic tank share a partial wall body, and the sedimentation tank and the oxidation ditch are combined to form a concentric double-wall cylindrical tank body; a submerged water impeller and a microporous aeration device are arranged in the oxidation ditch; a sludge scraper is arranged in the sedimentation tank, part of sludge discharged from the sedimentation tank enters the anaerobic sidestream reactor, and a sludge outlet of the anaerobic sidestream reactor is communicated with the oxidation ditch; and a sludge return pipe is arranged from the sedimentation tank to the anaerobic tank. The AAO oxidation ditch sewage treatment device based on anaerobic sidestream sludge reduction is suitable for treatment of urban domestic sewage, civil engineering investment and land occupation can be reduced, the anaerobic sidestream reactor is used for sludge source reduction, and the sludge treatment and disposal cost is reduced.