54 results about "Combined treatment method" patented technology

The invention belongs to the field of lake ecological desilting, and discloses a shallow lake bottom mud ecological desilting and residual water treatment combined treatment method which comprises lake bottom mud ecological desilting, solidification dehydration treatment and residual water treatment. Ecological dredging of the lake bottom mud is implemented by adopting an environment-friendly cutter suction dredger and a sealed pipeline to convey mud, and the bottom mud is conveyed to a mud discharge field to be solidified and dehydrated. A vacuum preloading technology is adopted for solidification and dehydration of the bottom mud, pore water of the bottom mud is effectively discharged by increasing the pressure difference between soil bodies of a drainage plate, and the overall solidification effect is improved. The residual water treatment comprises the treatment of desilting and solidifying residual water, the technologies of multi-stage precipitation, mechanical aeration, aquatic plant remediation and the like are adopted, and the residual water is discharged nearby after being treated to reach the standard. The combined treatment method aims at effectively reducing endogenous pollution of lakes, promoting lake water quality improvement and guaranteeing water safety of regional lakes and reservoirs, and is particularly suitable for ecological dredging engineering of shallow lakes, short construction period and fine-particle bottom mud.

The invention relates to the technical field of intelligent water affairs, in particular to a three-level combined processing method for urban water consumption prediction, which comprises the following steps: S1, data restoration: correcting abnormal values in an urban water consumption time sequence by using a dynamic threshold correction method based on multi-scale wavelet decomposition; s2, performing feature decoupling; and S3, performing prediction fusion. According to the method in the technical scheme, a dynamic threshold correction method based on multi-scale wavelet decomposition is adopted, signal hierarchical analysis is achieved through discrete wavelet transformation, a dynamic threshold mechanism is constructed in combination with MAD robust statistics, and abnormal points are effectively recognized and corrected; constructing a dynamic frequency band division joint model of variational mode decomposition and spectrum energy balance, proposing a dynamic frequency band recombination strategy guided by amplitude ranking, and performing energy balance division and inverse transformation reconstruction on VMD high-frequency sub-components through fast Fourier transform spectrum analysis; fine separation and multi-band phase synchronization of high-frequency abrupt change characteristics and periodic fluctuation are realized; and finally, constructing a long-short-term memory network to predict and reconstruct all sub-components.

The invention relates to the technical field of non-ferrous metal smelting, and discloses a combined treatment method of copper anode slime and lead anode slime, which comprises the following steps: step 1, pretreatment: mixing the copper anode slime and the lead anode slime, and then sequentially carrying out ball-milling crushing and water-washing desalination, the ball-to-material ratio of the ball-milling crushing is 4: 1-6: 1, and the particle size D50 of the crushed material is 8-25 [mu] m; the pretreated raw materials and a leaching agent are mixed and react for 1.5-3 h at the temperature of 60-75 DEG C under ultrasonic field and constant potential control, the potential range of constant potential control is 0.90-1.10 V, and the leaching agent comprises, by mass, 35-45 parts of thiourea, 8-12 parts of sodium chloride, 4-6 parts of ammonium persulfate, 3-5 parts of citric acid and 12-18 parts of sulfuric acid. By adopting the technical scheme of the synergistic effect of electrochemical potential gradient regulation and control and a complexing competitive mechanism, the defect that the leaching rate of precious metal is insufficient due to overlapping of oxidation-reduction potentials is overcome.

The invention relates to the field of wastewater treatment, in particular to a combined treatment method for azo dye and condensation dye production wastewater. The integrated process of enhanced Fenton oxidation, the IC anaerobic reactor, the anoxic tank, the aerobic tank (AO) and the membrane bioreactor (MBR) developed by the invention realizes efficient removal of organic matters, gives consideration to economical efficiency and stability, and breaks through the bottlenecks of high energy consumption and low efficiency of the traditional process.

The invention discloses a combined treatment method and system for potassium clavulanate fermentation waste bacterial liquid and wastewater. According to the method, through the whole-process collaborative design of pretreatment, anaerobic biochemical treatment, biogas desulfurization, sulfur recovery, anaerobic ammonia oxidation, deep biochemical treatment, energy recovery and sludge treatment, the degradation efficiency is improved by adopting ultrasonic wall breaking; the anaerobic ammonia oxidation technology is used for treating low-carbon-nitrogen-ratio and high-ammonia-nitrogen wastewater, the recycled biogas is used for energy supply, elemental sulfur generated by desulfurization replaces an exogenous carbon source, and real-time parameter optimization is achieved in cooperation with a PLC intelligent regulation and control system. The system breaks through a traditional mushroom residue-wastewater step-by-step treatment mode, realizes in-situ harmless treatment and resource utilization of dangerous mushroom residues, solves the problems of high treatment cost, serious secondary pollution, carbon-nitrogen imbalance and the like in the prior art, has the advantages of low energy consumption, low cost, high pollutant removal rate, remarkable resource recovery benefit and the like, and has a wide application prospect. The method is suitable for co-treatment of high-concentration organic wastewater and hazardous waste mushroom dregs in the fermentation pharmaceutical industry.

The invention provides a combined treatment method for copper-cobalt sulfide ore and cobalt oxide ore. The method comprises the following steps: mixing copper-cobalt sulfide ore with cobalt oxide ore to obtain a mixed ore material; the mixed mineral aggregate and a sulfur-fixing agent are mixed and roasted, and roasted sand is obtained; and mixing the roasted product with water and sulfuric acid, carrying out oxygen pressure leaching to obtain a leaching material, and carrying out solid-liquid separation to obtain a copper-cobalt leaching solution and leaching residues. According to the method, roasting and oxygen pressure leaching are combined for combined treatment of the copper-cobalt sulfide ore and the cobalt oxide ore, high-valence cobalt in the cobalt oxide ore can be reduced into low-valence cobalt which is easily dissolved in an acid solution through low-valence sulfide obtained through thermal decomposition of the copper-cobalt sulfide ore, the consumption of a reducing agent is reduced, the treatment cost is reduced, and the method is suitable for industrial production. According to the combined treatment method for the copper-cobalt sulfide ore and the cobalt oxide ore, sulfur dioxide is basically not generated in the roasting process, meanwhile, the leaching rate of copper and cobalt is remarkably increased by adopting an oxygen pressure leaching process, and the combined treatment method is low in production cost, small in environmental pollution and high in leaching rate of copper and cobalt.

The invention provides a composite metal catalyst and application thereof in biological combined light treatment paper pulp bleaching. The method comprises the following steps: dividing and brooming cooked paper pulp fibers by adopting biological pretreatment, and then carrying out illumination bleaching under simulated sunlight irradiation by adopting a metal photocatalyst (ZnO, ZFO, ZAO, ZMO and the like). According to the mild treatment method, the whiteness of the paper pulp is improved, and meanwhile it is guaranteed that fibers are not damaged. Compared with traditional chemical bleaching, biological combined light treatment bleaching has the advantages that the content of pollutants in wastewater is greatly reduced, meanwhile, reacted metal oxides can be recycled, and the combined treatment method can be used as a novel paper pulp fiber bleaching mode.

The present invention relates to a combined treatment composition for tumor treatment and a combined treatment method. The combined treatment composition or a medicine kit comprises a therapeutically effective amount of a platinum chemotherapeutic drug, and a therapeutically effective amount of CpG oligonucleotide and a therapeutically effective amount of R848. The present invention further provides a combined treatment method for treating a tumor by means of the combined treatment composition or the medicine kit. Firstly, a low-dose chemotherapeutic drug is used to kill a tumor so as to release a tumor neoantigen, such that a body immune system autonomously identifies and screens the neoantigen, and then CpG oligonucleotide and an R848 activator of immune response are used to induce and promote the body to generate immune response specific to the tumor neoantigen, such that the anti-tumor function of T cells is improved and enhanced, thereby achieving the effect of inhibiting tumor growth.

The application discloses a harmless combined treatment method for industrial aluminum ash, phosphogypsum and carbon dioxide, and comprises the following steps: S1, putting secondary aluminum ash into a sodium hydroxide aqueous solution, collecting tail gas and filtering; S2, slowly passing CO2 gas into the filtrate of S1, and performing three times of washing and filtering to obtain filter residue aluminum hydroxide; S3, adding phosphogypsum into the mixed solution of the second and third washing filtrates of S2, stirring and reacting, washing and filtering, and then evaporating and crystallizing the filtrate to obtain sodium sulfate; S4, calcining the filter residue of S3, and passing the generated gas into S2; S5, mixing and reacting the calcined solid with the tail gas collected in S1, collecting the reacted tail gas again and passing it into S4; and S6, reacting the solid in S5 with the first washing filtrate of S2, returning the filtrate to S1 after washing and filtering, and repeating S4 for the filter residue.

The present invention relates to the technical field of wastewater treatment. Disclosed is a combined treatment method for acidic wastewater. The combined treatment method for acidic wastewater comprises: introducing acidic wastewater generated during an industrial process into an electrochemical device and performing an electrochemical treatment on the acidic wastewater for neutralization and heavy metal extraction, wherein an anode of the electrochemical device is loaded with a non-metallic mineral material; and introducing an electrochemically treated solution into a sedimentation tank where carbon dioxide is captured from the air and fixed, and then directly discharging a treated solution conforming to "Environmental Quality Standards for Surface Water". The present invention relates to an acidic wastewater treatment method that is simple, efficient, and easy to operate and also achieves recovery of heavy metals. By introducing a readily available and environmentally friendly non-metallic mineral at the anode of the electrochemical device, hydrogen ions released during electrolysis are consumed, thereby reducing inhibition of heavy metal deposition by hydrogen ions and increasing the extraction rate of heavy metals from wastewater. The electrochemically treated solution then captures and fixes carbon dioxide, enabling direct discharge of the treated solution.

The invention discloses a combined treatment method for rare earth dust and flue gas, and relates to a rare earth processing technology, the method comprises the following steps: cooling discharged dust and flue gas mixed gas to reach a preset initial temperature, and then carrying out dust removal treatment on the discharged dust and flue gas mixed gas through an electrostatic adsorption device at a set initial airflow speed to obtain flue gas; detecting the dust content in the flue gas, and if the dust content is greater than or equal to a set target threshold value, dynamically adjusting the temperature and the airflow speed of dust and flue gas mixed gas according to the dust content; when the airflow velocity of the dust and smoke mixed gas is adjusted, the real-time flow of the smoke and the initial flow of the smoke when the dust and smoke mixed gas is at the initial airflow velocity are obtained, and the spraying flow in the spraying tower is corrected according to the real-time flow and the initial flow. The invention further discloses a combined treatment tower for the rare earth dust flue gas. The dust removal rate of dust and smoke mixed gas is higher, and the recovery rate of rare earth dust is increased.

The invention relates to the technical field of biotechnology, and discloses a microbial cellulose straw degradation, separation and screening method which comprises the following steps: performing multi-stage screening on strains, collecting humus soil samples, and performing three-stage screening on the humus soil samples through a cellulose-Congo red double-layer flat plate primary screening, liquid fermentation secondary screening and enzyme activity quantitative fine screening three-stage screening system. The preparation method comprises the following steps: preparing a cellulose degradation bacterial strain, separating to obtain a cellulose degradation bacterial strain, pretreating straws, crushing corn straws until the particle size is 0.5-2mm, removing a lignin barrier by adopting a diluted acid-alkali combined treatment method, and preparing a composite microbial agent; according to the method disclosed by the invention, a three-stage screening system of cellulose-Congo red double-layer flat plate primary screening, liquid fermentation secondary screening and enzyme activity quantitative fine screening is constructed, so that the capture precision of the efficient degradation strain is improved; the composite mutagenesis technology induces the bacterial strain to generate functional mutation, and the specific compounding proportion of the mutant strain and the original bacterial strain is combined to form a composite bacterial agent with a synergistic effect, so that the natural barrier of lignin-cellulose in the straw is broken, and the biodegradation efficiency of the cellulose is enhanced.

The application discloses a kind of kitchen garbage and kitchen waste oil combined processing system and its combined processing method, belong to garbage processing field.The combined processing system includes: kitchen waste oil unloading hopper, kitchen waste oil preliminary screening machine, kitchen waste oil heating tank, kitchen waste oil centrifuge feed pump, kitchen waste oil three-phase centrifuge, kitchen waste oil storage tank, kitchen waste oil delivery pump, kitchen unloading hopper, primary screening machine, filtrate tank, organic residue mixing tank, organic residue shearing machine, organic residue delivery pump, filtrate pump, secondary screening machine, heating pool, mixing pool, kitchen centrifuge feed pump and heating water pump, kitchen waste oil unloading hopper is used to receive kitchen waste oil, kitchen unloading hopper is used to receive kitchen garbage, heating water pump is used to deliver the liquid in heating pool after heating to filtrate tank and organic residue mixing tank.The application solves the problem of high cost and energy consumption of using two sets of processing system in prior art.

The present invention relates to the technical field of wastewater treatment, and specifically relates to a combined treatment method of resin and electrooxidation for dimethylacetamide wastewater. Its preparation process includes the following steps: crosslinking of lignocellulose and styrene particles; preparation of lignocellulose / vinylpyridine modified resin; preparation of acetamide adsorption resin; combined treatment of resin and electrooxidation for dimethylacetamide wastewater. After the crosslinking of lignocellulose and styrene, further crosslinking is carried out with vinylpyridine monomer, and a multi-dimensional crosslinked network resin grafted with lignocellulose and styrene with vinylpyridine as the substrate is formed, thereby significantly improving the adsorption efficiency of dimethylacetamide. Moreover, the groups in vinylpyridine can be introduced into the resin as functional groups, and lignocellulose contains active groups, and these groups can cooperate with the pyridine ring after crosslinking to further enhance the adsorption capacity of dimethylacetamide.

The invention relates to the field of high-purity vanadium ammonia-nitrogen wastewater treatment, and discloses a reverse osmosis-catalytic ozonation combined treatment method for high-purity vanadium ammonia-nitrogen wastewater. The method comprises a reverse osmosis treatment step and a catalytic ozonation treatment step, and a catalyst adopted in the catalytic ozonation treatment step comprises the following components in parts by weight: 1-2 parts of metal oxide; 40-60 parts of activated carbon; 0.5-1 part of an adhesive; the metal oxide is an oxide containing copper, cobalt, manganese, hafnium and lanthanum elements. Through a combined treatment method of reverse osmosis and catalytic ozonation, cooperative treatment of the high-purity vanadium ammonia nitrogen wastewater is realized, and the problem that pollutants are not thoroughly removed in the traditional technology is solved.

The invention discloses a waste liquid treatment method for preparing O-methylisourea hydrogen sulfate by a urea method, which aims at overcoming the defects of an organic acid-containing waste liquid treatment method which is high in organic matter content, low in moisture content, high in acid content, high in temperature and explosive, adopts a combined treatment method of alkali and a dispersing agent, and gasifies the dispersing agent through heat generated in a neutralization process; according to the present invention, the heat in the whole reaction process is removed so as to ensure the safety of the reaction process, and the presence of the dispersant reduces the viscosity of the system, simplifies the by-product preparation steps, improves the by-product quality, has advantages of high resource utilization rate, low equipment requirement, low waste liquid component requirement, and effective hazardous waste amount reduction; meanwhile, the dispersing agent can be repeatedly used, the treatment method is simple, the treatment time is short, the treatment efficiency is high, and the method has good environmental benefits and is suitable for large-scale popularization and application.

The invention provides a combined treatment method for arsenic and cyanide combined polluted underground water, which comprises the following steps: preparing a compound material from the following components in percentage by weight: 8-16% of sponge iron, 10-15% of ceramsite, 73-76% of medium-coarse sand and 1% of activated carbon, and uniformly stirring to prepare a filling medium; the permeable reactive barrier is filled with a filling medium, and the water inlet end and the water outlet end of the filling medium are filled with medium-coarse sand with a certain thickness; the method comprises the following steps: adjusting the pH value of arsenic and cyanide combined polluted underground water to 7.5 through an alkaline solution to obtain polluted water to be treated; polluted water to be treated is converged into the permeable reactive barrier from the water inlet end, stays for a period of time and then is discharged from the water outlet end. According to the method, efficient, economical and stable combined treatment of the arsenic and cyanide combined pollution underground water is achieved through combination of the compound material and the permeable reactive barrier technology, the technical feasibility and the engineering popularization value are both achieved, and an innovative solution is provided for underground water combined pollution treatment.

The application provides an algal combined treatment method, and relates to the technical field of bioengineering, and comprises the following steps: selecting microalgae seeds; inoculating the microalgae seeds into a conical flask of a Basal culture medium; culturing under dark conditions; after the microalgae seeds reach the plateau phase, supplementing plant hormones and a nitrogen source, and culturing to obtain microalgae. The algal combined treatment method can effectively stimulate the microalgae in the plateau phase, and then can effectively improve the total carotenoid content and the lutein content.

This invention relates to the field of colony identification technology, specifically to a method, system, device, and medium for the fusion processing of static and dynamic colony counts. The method involves static identification, which is performed at least twice to obtain two static colony result images, followed by dynamic identification. Dynamic identification includes: acquiring two adjacent static colony identification results; preprocessing the colony data; and updating the previous dynamic identification result with the next dynamic identification result. This invention mainly combines static and dynamic identification of colony images. The dynamic identification step compares and analyzes the results of two adjacent static identifications, identifying covered colonies or other interfering factors such as impurities, and correcting subsequent dynamic identification. The beneficial effect is that it obtains a more accurate colony count, solving the problem of large counting errors in current technologies.

An embodiment of the present invention provides a combined treatment method and device for glyphosate mother liquor and glyphosate-N-methyliminodiacetic acid (PMIDA) mother liquor. The treatment method includes performing pretreatment on both the glyphosate mother liquor and the PMIDA mother liquor; subjecting the pretreated glyphosate mother liquor to membrane concentration separation; placing the diluted glyphosate solution obtained from the membrane concentration separation on the feed side of forward osmosis; placing the pretreated PMIDA mother liquor on the draw solution side of forward osmosis; performing ion exchange recovery treatment on the concentrated feed solution; and performing membrane concentration separation and recovery treatment on the diluted draw solution. The present invention utilizes the combined treatment method for glyphosate mother liquor and PMIDA mother liquor for resource recycling. At the same time, by using the salt concentration difference between the glyphosate mother liquor and the PMIDA mother liquor, forward osmosis technology is adopted to concentrate the glyphosate mother liquor and dilute the PMIDA mother liquor respectively, greatly improving the subsequent membrane treatment effect.

The invention relates to a combined treatment method of glycerol salt obtained by refining crude glycerol and polyglycerol oil residue, which comprises the following steps: firstly, washing the glycerol salt with water to obtain washed salt and washed salt water; the salt washing water and clear water are mixed and dissolved to obtain salt water, and organic matters in the salt water are deeply oxidized to reach the salt water standard for ionic membrane chlor-alkali through an advanced oxidation technology, so that resource recycling is realized. The method comprises the following steps: mixing and dissolving salt washing water and polyglycerol oil residues, reacting in a strong acid environment to generate water-insoluble fatty acid and NaCl salt which is crystallized and separated out due to supersaturation, and separating a three-phase mixture into solid NaCl salt, fatty acid and a polyglycerol solution through a three-phase separator. And the polyglycerol solution is sequentially subjected to neutralization, electrodialysis desalination, distillation concentration and decoloration to obtain a luminous yellow or faint yellow polyglycerol product containing more than 90% of glycerol and polyglycerol by weight.

The invention discloses a preparation method of a silicon nitride ceramic heating rod, and relates to the technical field of silicon nitride ceramic heating rods. Comprising the following steps: uniformly mixing silicon nitride powder with a sintering aid, carrying out sintering molding to obtain a silicon nitride layer, and carrying out surface pretreatment on the silicon nitride surface; carrying out silk-screen printing to form a required circuit pattern; selecting an inner core material, and preparing an inner core rod body with a required shape; and wrapping the silicon nitride layer on the inner core rod body to obtain a heating rod blank. Surface pretreatment is carried out on the silicon nitride surface through a combined treatment method so as to remove organic pollutants and oxides on the surface of the silicon nitride layer and increase the surface roughness, the silicon nitride layer is soaked in a solution containing a silane coupling agent, the silane coupling agent and the surface of the silicon nitride layer are subjected to a chemical reaction, and the surface roughness of the silicon nitride layer is improved. And a chemically bonded coupling layer is formed, so that the adhesive force between the conductive paste and the silicon nitride layer is enhanced, and the use stability of the silicon nitride ceramic heating rod is improved.

To provide a novel combined treatment method for cyanobacteria bloom, which relates to a technical field of an environmental management.SOLUTION: A combined treatment method of the present invention includes: (1) an agglomeration step of calculating a volume of a water body, adding polyaluminum chloride powder in the amount of 5 to 10 ppm, mixing thoroughly with water before adding the polyaluminum chloride powder to completely dissolve the powder, and spraying evenly along a water surface; (2) a stirring step of moving a boat back and forth across the water surface to uniformly mix the added polyaluminum chloride with lake water; and (3) a sonication step of, after leaving the same for a certain period of time, performing ultrasonic treatment by moving back and forth across a surface of the water body using a mobile ultrasonic treatment device. The present invention can quickly remove cyanobacterial cells and maintain a control effect for a longer period, thereby achieving a purpose of treating dispersed cyanobacterial blooms.SELECTED DRAWING: Figure 1

The invention discloses a new energy multi-station short-circuit ratio combined treatment method based on coupling relation analysis, and belongs to the technical field of new energy multi-station short-circuit ratio treatment. The problems of low treatment efficiency and high cost caused by an unreasonable short-circuit ratio configuration scheme of multi-station combined treatment of existing new energy stations are solved. According to the method, the required individual short-circuit ratio increment of each station can be obtained by adopting a short-circuit ratio increment total target-individual short-circuit ratio increment linear equation of each station when each station just reaches a short-circuit ratio treatment target, and then the critical minimum value of the capacity of a short-circuit ratio treatment device which should be configured by each station is obtained according to a short-circuit ratio increment coupling function; the capacity of the short-circuit ratio treatment device required to be configured for achieving the treatment target is reduced to the maximum extent, and the treatment efficiency is improved. The method is used for new energy multi-station short-circuit ratio combined treatment.

Disclosed is a combined treatment method for laterite nickel ore hydrometallurgical slag and phosphating slag, the combined treatment method includes uniformly mixing a laterite nickel ore hydrometallurgical slag, a phosphating slag, and a sodium alkaline salt to obtain a mixed material; subjecting the mixed material to sodium reduction roasting to obtain a roasted material; leaching the roasted material with water and filtering to obtain a water leaching solution and a water leaching slag; subjecting the water leaching slag to magnetic separation to obtain an iron concentrate. In the disclosure, by mixing a laterite nickel ore hydrometallurgical slag and a phosphating slag and then performing sodium reduction roasting, the iron exists in the form of Fe3O4 and elements such as manganese and zinc exist in the slag in the form of oxides, and during the roasting process, aluminum oxides react with alkali to be converted into sodium aluminate.

The invention provides a cultivation-fertilization combined treatment method and system based on cultivated land quality degradation analysis, relates to the technical field of planning management, and realizes quantitative management of soil quality through evaluation coefficients. Secondly, scientifically determining three types of plants suitable for crop rotation according to the soil fertility level, and generating an adaptability optimization coefficient of each type of plants through comprehensive analysis of nutrient absorption demand factors and soil fertility influence factors; the adaptability optimization coefficient is used for screening out two types of plants suitable for crop rotation from the three types of plants, and dynamic monitoring and continuous improvement of the soil quality are achieved; finally, targeted soil fertilization and crop rotation plant adjustment suggestions are provided for each sub-region through comparative analysis and adjustment strategies, so that long-term improvement of the soil fertility level and sustainable development of agricultural production are ensured.

The present invention relates to a combined treatment method for a mixed alcohol waste and a heavy alcohol waste. The combined treatment method is characterized by comprising the following reaction steps: step 1, optionally, subjecting the mixed alcohol waste mainly comprising C1-C4 saturated monohydric alcohols to preliminary separation treatment, so as to at least partially remove water and acids contained therein, and optionally, at least partially separating a heavy component mainly comprising esters, so as to obtain a preliminary purified product of the mixed alcohol waste; step 2, in the presence of an optional catalyst, mixing the mixed alcohol waste that has optionally undergone the preliminary separation treatment, the heavy alcohol waste and an optionally added alcohol, and reacting same to obtain a product containing a glycolate and ethylene glycol; and optionally, step 3, separating a material containing the glycolate and ethylene glycol from the product obtained in step 2 and the heavy component which is optionally obtained in step 1, wherein the heavy alcohol waste comprises at least one of ethylene glycol, glycolic acid and methyl glycolate, and a polymer generated from at least one of the compounds by a polymerization reaction. The present invention also relates to a system for implementing the method according to the present invention.

The application discloses a combined treatment method for laterite nickel ore smelting slag and phosphating slag, and belongs to the technical field of hydrometallurgy. The combined treatment method comprises the following steps: uniformly mixing the laterite nickel ore smelting slag, the phosphating slag and a sodium alkaline salt to obtain a mixture; performing sodium reduction roasting on the mixture to obtain a roasted material; performing water leaching on the roasted material to obtain a water leaching solution and a water leaching residue through filtration; and performing magnetic separation on the water leaching residue to obtain an iron concentrate. The laterite nickel ore smelting slag and the phosphating slag are mixed and then subjected to sodium reduction roasting, so that iron exists in the form of Fe3O4, manganese and zinc exist in the form of oxides in the slag, and aluminum oxide is converted into sodium aluminate which is easy to dissolve in water by reacting with the alkali in the roasting process, and then the aluminum in the roasted material can be efficiently separated through subsequent water leaching; meanwhile, the reaction of phosphating zinc and phosphating manganese with the alkali also promotes the transformation of iron oxide from non-magnetic to magnetic, and then the iron can be efficiently recovered through subsequent magnetic separation.

The invention relates to a dredged sludge conditioning agent and vacuum preloading combined treatment method, in particular to the technical field of dredged sludge vacuum preloading, and the dredged sludge conditioning agent and vacuum preloading combined treatment method comprises the following steps: establishing a layered gradient PVD arrangement model according to the permeability coefficient Kh, the volume compression coefficient mv and the maximum radius rsmax of a clogging area of dredged sludge; after each layer of PVD is installed, a rice hull ash and carbide slag composite curing composition is injected into the dredged sludge; according to the layered gradient type PVD arrangement model, the vacuum negative pressure P0 applied to the surface layer layering is 80 kPa to 100 kPa, the vacuum negative pressure P0 of the middle layer layering is 60 kPa to 80 kPa, the vacuum negative pressure P0 of the bottom layer layering is 40 kPa to 60 kPa, and the hyperstatic pore water pressure uh of each layering is monitored in real time; and the vacuum negative pressure value is adjusted, so that the difference of the consolidation degrees of all the layers does not exceed 5%. Through layered gradient PVD arrangement, rice hull ash and carbide slag composite curing composition pulse injection and vacuum pressure dynamic regulation and control, the overall solidification speed is increased by 40%, and the clogging effect is reduced by 50%.

The invention relates to a method for preparing blackened persimmon wine based on solid state fermentation blackening and mixed strain fermentation, and belongs to the technical field of food processing. The persimmon juice is prepared from the persimmons by adopting a combined treatment mode of microwave, ultrasonic and high-pressure homogenization for the first time, so that the juice yield can be effectively improved, and the original nutritional ingredients of the persimmons can be prevented from being damaged. According to the method, a solid-state fermentation blackening technology is applied to persimmon processing for the first time, the blackened persimmon product obtained after blackening is rich in beneficial ingredients such as polyphenol and flavone, and the antioxidant function is enhanced. The low-temperature plasma technology is adopted to sterilize the blackened persimmons, so that the sterilization effect can be achieved, and the original nutritional ingredients of the blackened persimmons can be maintained to the greatest extent. According to the invention, the mixed strains of Angel dried yeast and hansenula polymorpha are used for fermenting the blackened persimmons to prepare the wine, so that the blackened persimmons are brewed into the blackened persimmon wine, and the flavor of the blackened persimmon wine can be optimized at the same time.