36 results about "Combined treatment method" patented technology

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 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 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 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 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.

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 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.

The invention belongs to the field of station short-circuit ratio treatment, and particularly relates to a new energy multi-station short-circuit ratio combined treatment method based on iterative calculation. According to the method, two different schemes are adopted to treat a plurality of abnormal new energy stations, firstly, iterative treatment is performed on the abnormal new energy stations, secondly, grouping treatment is performed on the new energy stations, and the larger value of the capacity increment of each abnormal new energy field treatment device in the two treatment methods is compared, so that the new energy stations can be treated. The value is used as the capacity increment of the treatment device for treating the corresponding abnormal new energy station; according to the method, mutual promotion of multiple stations is realized through combined treatment of the multiple stations, and the scale of required treatment measures is smaller than the sum of the scales of treatment measures required by independent treatment of the stations, so that the short-circuit ratio of combined treatment of the multiple stations has relatively high treatment efficiency; the problems that an existing new energy station independently governs the short-circuit ratio configuration device is too large in scale, low in governing efficiency and difficult to land are solved.

The invention discloses a combined treatment method for aluminum ash and waste aluminum electrolyte, and belongs to the field of metallurgical solid waste resourceful treatment. The method comprises the following steps: mixing aluminum ash with an inorganic acid solution, reacting, and carrying out solid-liquid separation to obtain a filtrate a; mixing the waste aluminum electrolyte with a solution containing Fe < 2 + >, dropwise adding hydrogen peroxide under a stirring condition, reacting, carrying out solid-liquid separation, and washing to obtain a filter cake c; mixing the filtrate a and the filter cake c, and roasting to obtain roasted clinker; mixing the roasted clinker with a chlorine salt solution, leaching, and carrying out solid-liquid separation to obtain a filter cake e; and drying the filter cake e to obtain an aluminum fluoride product. According to the combined treatment method, combined recovery treatment of the two solid hazardous wastes, namely the aluminum ash and the waste aluminum electrolyte, generated in the aluminum industrial process is achieved, the raw materials and the reaction reagents are low in cost, the obtained aluminum fluoride product meets the national standard requirement, and the technology is remarkable in industrial value and has important practical significance on promoting green and sustainable development of the aluminum electrolysis industry.

The invention provides a low-intensity laser and acupuncture combined treatment device and a working method, and mainly relates to the field of Alzheimer's disease (AD). The device comprises a wearable human body connecting mechanism (1) which is used for connecting and fixing combined treatment equipment; the control and power supply device (2) is used for supplying power to the combined treatment equipment and controlling laser output; the lightweight adjustable bracket (3) is used for fixing the combined treatment equipment and carrying control and power supply cables; and the combined treatment equipment (4) is used for providing laser irradiation and acupuncture needles. Compared with the traditional single acupuncture treatment, the acupuncture treatment device has the advantages that the action mechanism that low-intensity laser and acupuncture pass through the core acupuncture point is utilized, the combined treatment method is combined, different intervention purposes can be achieved by adjusting the irradiation intensity and the irradiation mode according to different symptoms, more accurate acupuncture point intervention is achieved, and the risk caused by the side effect of common acupuncture is reduced.

The invention discloses a method for efficiently removing antibiotics through non-contact bacteria-algae combined treatment, and belongs to the field of biological treatment and water treatment. The separation membrane is arranged in the non-contact bacteria-algae combined treatment system and is used for physically isolating the algae reaction unit from the bacteria reaction unit; chlorella is added into the algae reaction unit; activated sludge is added into the bacterial reaction unit; and the aperture of the separation membrane is smaller than the sizes of cells in the chlorella and the activated sludge. The method for efficiently removing the antibiotics through non-contact bacteria-algae combined treatment is designed, the removal effect on sulfamethoxazole is excellent, the method is obviously superior to an existing common exchange type bacteria-algae synergistic method, and the degradation capacity on the antibiotics is obviously enhanced. According to the non-contact bacteria-algae combined treatment method, the antibiotic removal effect is improved, and meanwhile, the effluent quality almost the same as that of a common exchange type bacteria-algae synergistic reactor is kept.

The invention discloses a combined treatment method for chemical waste gas treatment and catalyst recovery treatment, and belongs to the technical field of chemical engineering. A device used in the treatment method mainly comprises a waste gas washing tower, a metal pretreatment tank I, a metal pretreatment tank II, a catalyst recovery filter and a catalyst storage tank, the original waste gas washing tower of the device and carbon dioxide in tail gas are used for preparing a sodium carbonate solution, and the sodium carbonate solution is used for recovering the catalyst; the sodium carbonate solution can be prepared, the waste water of the waste gas washing tower can be treated, the sewage treatment amount is reduced, the labor cost is reduced, the purchase amount of sodium carbonate is reduced, the production cost of PTA is reduced to a certain extent, the purposes of reducing cost and improving efficiency are achieved, and the method has a good application prospect.

The invention discloses an efficient short-process magnetizing roasting combined treatment method for iron ore, and belongs to the field of mineral processing engineering. The method comprises the following steps: crushing and screening the iron ore with the particle size of 0-300mm, and feeding into a closed-loop dry-method pulverizing system consisting of a high-pressure roller mill and a wind power concentrator to prepare ore powder with a qualified particle size; after being subjected to two-stage preheating, the mineral powder sequentially enters a roasting furnace and a reduction furnace in a suspended state to be magnetized and roasted, and high-temperature roasted sand is cooled through a waste heat boiler to recover heat; and the cooled calcine is subjected to slurry making, pre-concentration and tailing discarding, then a vertical stirring mill is adopted for wet closed-circuit ore grinding, then continuous magnetic separation and reverse flotation impurity removal are conducted, and finally high-quality iron ore concentrate is obtained. According to the method, the high-pressure roller milling dry-method powder preparation and the suspension roasting process are combined, so that the intermediate links of filtering, drying and the like in the traditional wet-type powder preparation are omitted, and the problem of high energy consumption of feeding wet ore into a furnace is solved; and meanwhile, full-process ball-free milling operation is realized by adopting a high-pressure roller mill and a vertical stirring mill, so that the crushing and grinding efficiency and the energy efficiency level are greatly improved. Compared with the prior art, the method has the remarkable advantages of being short in process, high in efficiency, energy-saving, environment-friendly and the like, and is particularly suitable for resource utilization of low-grade refractory iron ore.

The application discloses a combined treatment method of aluminum ash and waste aluminum electrolyte, and belongs to the field of metallurgical solid waste resource treatment. 2+ The combined treatment method comprises the following steps: mixing aluminum ash with an inorganic acid solution, performing solid-liquid separation after reaction, and obtaining filtrate a; mixing waste aluminum electrolyte with a solution containing Fe After the combined treatment method, the aluminum ash and the waste aluminum electrolyte generated in the aluminum industry process can be jointly recovered and treated, the cost of raw materials and reaction reagents is low, the obtained aluminum fluoride product meets the national standard requirements, and the process has remarkable industrialization value, and has important practical significance for promoting the green and sustainable development of the aluminum electrolysis industry.

The invention relates to a combined treatment method for storage tank oxygen-free organic waste gas and loading oxygen-containing organic waste gas. The combined treatment method comprises the following steps that the oxygen-free waste gas is pressurized through a first induced draft fan and then conveyed to a gas-liquid separation tank; oxygen-containing waste gas is pressurized by a second induced draft fan and then is conveyed to a gas-liquid separation tank; waste gas mixed in the gas-liquid separation tank is pressurized by a booster fan and then is conveyed into a premixer of the CEB incineration facility; the combustion fan sucks air and then sends the air to the premixer, and the natural gas is decompressed and then sent to the premixer; in the process, the oxygen concentration in the gas-liquid separation tank is obtained, and the inlet amount of the oxygen-free waste gas and the oxygen-containing waste gas is controlled based on the preset oxygen concentration. The combined treatment method for the oxygen-free organic waste gas of the storage tank and the oxygen-containing organic waste gas of the truck loading is simple in technological process and equipment operation, after the method is applied, the natural gas consumption is reduced to 100 Nm < 3 > / h to 150 Nm < 3 > / h from 250 Nm < 3 > / h to 300 Nm < 3 > / h, and the obvious energy-saving effect is achieved.

The application belongs to the technical field of sewage treatment, and discloses a combined treatment method of acid wastewater. The combined treatment method of acid wastewater comprises the following steps: introducing acid wastewater generated in an industrial process into an electrochemical device, loading non-metallic mineral materials on an anode of the electrochemical device, neutralizing the acid wastewater and extracting heavy metals through electrochemical treatment; introducing the solution after the electrochemical treatment into a sedimentation tank, capturing and fixing carbon dioxide in the air, and directly discharging the treated solution meeting the Environmental Quality Standards for Surface Water. The acid wastewater treatment method is simple, efficient, easy to operate, and can realize the recovery of heavy metals at the same time. The non-metallic mineral which is easy to obtain and environment-friendly is introduced into the anode of the electrochemical device, hydrogen ions released in the electrolysis process are consumed, the inhibition of hydrogen ions on the deposition of heavy metals is reduced, and the extraction rate of heavy metals in the wastewater is improved. The solution after the electrochemical treatment is used for capturing and fixing carbon dioxide, and the treated solution can be directly discharged.