38 results about "Sedimentation technique" patented technology

A method for preparing (TiAlZr)N superhard coating by multi-arc ion plating technique sequentially comprises (1) determination of sedimentation technique; (2) determination of target component; (3) preparation of an alloy target; (4) selection and pre-treatment of a workpiece (substrate); (5) acquisition of a transition layer; (6) determination of the number of electric arc sources; (7) heating the workpiece; (8) determination of sedimentation process; (9) baking the film-coated workpiece; (10) workpiece rotation, etc. The invention can form a TiAlZr alloy target and determine the content change ranges of Ti, Al and Zr in the TiAlZr alloy target, so that the TiAlZr)N superhard coating has the advantages of strong adhesion (not less than 180 N), high hardness (not less than HV3,000), etc.

The invention discloses a device and a method of a residual sludge alkaline fermentation and inner carbon source development technology coupled with an A-A-O nitrogen and phosphorous removal system, and belongs to the field of environmental protection. Residual sludge is inoculated to an anaerobic fermentation integrated device, an alkali solution is pumped into the anaerobic fermentation integrated device, a blender is started, and the alkali solution is discontinuously fed. A fermented liquid is discharged from the top and goes into an external sedimentation area, at the same time, a certain proportion of nitrification liquid in the A-A-O system is subjected to pre-denitrification denitrogenation in the external sedimentation area of the anaerobic fermentation integrated device, an effluent of the sedimentation area is subjected to N and P recovery in a mid-sedimentation tank, and after the fermentation liquid is subjected to slurry water separation and then goes into the A-A-O system for nitrogen and phosphorous removal treatment; the A-A-O system residual sludge flows back to an internal reaction area of the anaerobic fermentation integrated device. Culture conditions comprise that the temperature is 20-30 DEG C, the pH is 9-10, and the concentration of dissolved oxygen is 0-0.1 mg/L. The problems of low acid production amount of fermentation of activated sludge and insufficient carbon sources in the A-A-O nitrogen and phosphorous removal system are solved. The anaerobic fermentation technology, anaerobic/anoxic/aerobic technology, physical sedimentation technology and chemical sedimentation technology are effectively combined together by the method.

The invention provides a manufacturing method for a TSV and a first layer re-wiring layer needless of using a CMP. The method comprises the following steps of processing the surface of a substrate, eliminating the protrusions and pits on a surficial metal layer by adopting a mechanical leveling mode for the substrate being finished TSV electroplating filling, thinning the surficial metal layer of the substrate by adopting a wet etching mode or an electrochemical polishing mode, carrying out photoetching to obtain the first layer re-wiring layer, using the remained surficial metal layer of the substrate as a seed layer, and obtaining a re-wiring metal layer through electroplating, removing photoresist, and removing the surficial metal layer of the substrate and a diffusion impervious layer through corrosion to complete the manufacturing of the first layer re-wiring layer. The manufacturing method for the TSV and the first layer re-wiring layer needless of using the CMP has the advantages that after electroplating filling is carried out, the surface is processed by adopting the processing mode of mechanical leveling, then the surface copper layer is thinned, a continuous thin copper layer is remained as the electroplating seed layer of follow-up first layer RDL processing, the CMP technology is avoided, the fact that the diffusion impervious layer and the seed layer sedimentation technique are carried out once more is removed, and process cost can be lowered greatly.

The present invention relates to a process for fabricating molded structures having a radially organized pore structure. The molded structures are formed using a spinning-induced sedimentation technique such that sedimentation of a multi-component liquid suspension produces the internal geometry and porosity of the structure. The porous molded structures of the invention can be used in a number of applications including tissue and organ engineering, dialysis and phase separation membranes and water and liquid waste purification systems.

The invention discloses a mine water treatment technique. The characteristic of the technique, which is different from other water source treatment techniques, is that a chemical method is first used for carrying out flocculation and sedimentation before biodegradation, and moreover, the flocculation-sedimentation technique is as follows: polyacrylamide accounting for 1 percent to 2 percent of the total weight of mine sewage is first added in a flocculation-sedimentation tank, solid suspending impurities, such as organic pollutant and pulverized coal ash, are sedimentated, aluminium polychlorid accounting for 10 percent to 15 percent is then added in the sediment, the aluminium polychlorid and the sediment are then mixed by a mixer, and react for 3 to 5 minutes, so that flocculent precipitate is formed, a filter press is used for separating out the flocculent precipitate, and after treatment, the obtained water is drained into a regulation tank. The invention has the advantage that the treatment technique integrated chemical flocculation with biodegradation can effectively purify mine sewage.

An efficient denitrifying and carbon-removing device for culture wastewater anaerobic biogas slurry with a low C/N ratio and a process thereof are disclosed. The main part of the device comprises four-stage micro-aerobic aeration tanks. Based on a step-by-step water feeding technique, a micro-aerobic aeration technique and a coagulating sedimentation technique, the process which is capable of synchronously coupling denitrification and carbon removing through step-by-step water feeding and micro-aerobic aeration, self-balanced in carbon source, self-balanced in alkalinity, high in efficiency, low in consumption and capable of reaching standards is constructed. The process includes subjecting livestock culture wastewater to solid liquid separation, feeding the wastewater as a resource into a UASB reactor, producing biogas and the biogas slurry through anaerobic fermentation, feeding the biogas slurry with the low C/N ratio and high nitrogen and phosphorus concentrations into a step-by-step water feeding micro-aerobic aeration system (SFAO4), subjecting the biogas slurry to efficient denitrification and carbon removing, continuously feeding biochemical treatment effluent into a coagulating clarifier, performing deep denitrification and phosphorus removing, and discharging after clear water reaches the standards. The device and the method are advantaged by good denitrification and phosphorus removing effects, high resistance to impact load and a low running cost.

The invention discloses a treating method for cyanide waste water. The method comprises three steps of electrochemical treatment, coagulating sedimentation treatment and bioactive carbon treatment; cyanide which is easy to treat is removed through the electrochemical treatment method first; coagulating sedimentation is conducted by adding a zinc sulfate solution and a coagulating agent to remove metal cyanogen complex compounds and heavy metal ions in the waste water; pollutants which are difficult to remove by the chemical methods in the waste water are removed according to a biological and physical adsorption method in the bioactive carbon treating system finally. According to the characteristic that the pollutants in gold mine cyanide waste water are complex and difficult to treat, the method integrates the electrochemical treatment technique, the coagulating sedimentation technique and the bioactive carbon treatment technique together to synergistically conduct advanced treatment on the gold mine cyanide waste water, and is good in treating effect, high in treating efficiency, stable in operation of the system, simple in technological process and convenient to realize industrial application; the treated waste water can be returned to a manufacturing technology process to be used as reused water or discharged after reaching the standard.

The invention relates to an intelligent response control electrical desalting and dewatering electric field device belonging to the technical field of crude oil processing. The device comprises an oil inlet distributor and at least two layers of horizontal high-voltage electrode plates, wherein the high-voltage electrode plates are connected with a voltage output circuit controlled by a PLC, the oil inlet distributor is formed by branch pipelines which are mutually isolated, oil inlet spray nozzles are arranged on the branch pipelines and are positioned between the adjacent horizontal high-voltage electrode plates, the ejection direction of the oil inlet spray nozzles is parallel to the horizontal high-voltage electrode plates, and annular electrode plates surrounding the oil inlet spray nozzles are respectively and oppositely extended out on the two adjacent horizontal high-voltage electrode plates, so that a dispersion mixed area positioned between the two opposite annular electrode plates and an accumulating sedimentation area positioned at the periphery of annular electrodes are formed, and the electric-field intensity of the dispersion mixed area is greater than that of the accumulating sedimentation area. The invention realizes the organic combination of an electric dispersion mixed technique and an accumulating sedimentation technique, enables the mixing of crude oil and water droplets to reach a best effect and obviously improves the desalting effect; and compared with the traditional electrical desalting technique, the invention can save water by more than 50%.

The invention discloses a grit chamber device, which belongs to the technical field of environmental protection and relates to a silt sedimentation technique in hydraulic engineering. The invention provides a clock-type grit chamber, which can solve the problem of silt sedimentation in the conventional river channel well. In the grit chamber device, the flow velocity and the flow state of the intake water flow are controlled, so that sand particles are accelerated to be sedimented spirally along the wall of the grit chamber under the action of a centrifugal force and gravity; organic matters drift away along with the water flow under the action of the water flow; the sand sunk to the bottom of the grit chamber is lifted by air; and the sand and a little sewage enter a sand-water separator to be separated and discharged; and cleaning water reflows to a grating well, so that the aim of removing sand is fulfilled.

The invention discloses a method for preparing a traditional Chinese medicine preparation for resisting senility, which in particular relates to a method for preparing a traditional Chinese medicine preparation for resisting senility by using a traditional Chinese medicine modern production technology. The method comprises the following steps: adding a flocculation clarifier into an extracting solution after completely extracting crude medicines, such as tuber fleeceflower, cherokee rose flesh, mulberry fruit, wine-braised glossy privet fruit, wine-braised siegesbeckia orientalis grass, wine-braised radix cyathulae and wine-braised Chinese dodder, carrying out solid-liquid separation after standing for a period of time, concentrating into clear paste or thick paste and adding conventional medicinal auxiliary materials to prepare oral liquid, granules, tablets, capsules, concentrated pills or dripping pills and the like. The invention adopts a flocculation clarifying technology or a united centrifugation technology to refine liquor and shortens the sedimentation time; compared with the traditional alcohol sedimentation technique, the invention can reduce the procedure, shortens the production period, saves the raw material of ethanol, lowers the cost and is beneficial for solving the problem of the potential safety hazard of factories.

The invention relates to the technical field of sewage flocculation precipitation, and discloses a sewage flocculation and sedimentation device which comprises a tank body, a driving rod is arranged in the tank body, a driving groove is formed in the surface of the driving rod, a steering groove is formed in the surface of the driving rod, and a sliding seat is arranged outside the driving rod. Atop column is arranged in the sliding seat, a supporting rod is arranged on the surface of the sliding seat, a first gear is arranged on the surface of the supporting rod, a stirring rod is arranged at the end, away from the sliding seat, of the supporting rod, and a toothed rod is arranged in the tank body. According to the sewage flocculation and sedimentation device, through cooperative use ofa second gear and the toothed rod, cooperative use of the second gear and a rotating cylinder, cooperative use of a piston rod and a cylinder body, and cooperative use of an air inlet sliding block and discharging sliding block, a flocculating agent can be intermittently and movably added, the contact area of the flocculating agent and sewage is increased, the flocculating agent is added more uniformly, the adding effect of the flocculating agent is improved, and the flocculating agent and the sewage are fully mixed.

The invention discloses a preparing method for blood glucose reducing substitute tea prepared by adopting edible plants as components. The substitute tea is prepared from 5-15 g of rhizoma polygonati odorati, 5-15 g of fructus mume, 7.5-22.5 g of rhizoma dioscoreae, 10-30 g of fructus canarli, 7.5-22.5 g of semen zizyphi spinosae, 7.5-22.5 g of fructus lycii, 7.5-22.5 g of mulberry, 10-30 g of rhizoma polygonati, 10-30 g of radix puerariae and 5-15 g of rhizoma imperatae. The tea is prepared from particles prepared by adopting a mixed smashing method or a water extraction and alcohol sedimentation technique or an alcohol extraction and water sedimentation method. The blood glucose reducing substitute tea is convenient to carry and drink good in mouthfeel and readily accepted by people; the tea contains no food additives, hormones and harmful substances and is suitable for being drunk by people with relatively high blood glucose for a long time.

The invention discloses a treating system for cold-rolled heat-rolled waste emulsion. The treating system comprises the following steps: adding an alkaline additive into a reaction tank containing the cold-rolled heat-rolled waste emulsion, performing chemical demulsification process and regulating PH value; putting the solid residue in the reaction tank into a sludge tank, adding coagulant or flocculating agent into the sludge tank, fully reacting and performing filter-pressing treatment; conveying the primarily separated wastewater in the reaction tank into a membrane tube concentrating device and performing physical separation, thereby realizing a physical demulsification process; conveying and returning a concentrated solution separated by the membrane tube concentrating device to a waste emulsion collecting tank and then conveying the waste emulsion in the waste emulsion collecting tank to the reaction tank and circularly treating; conveying the treatment water separated by the membrane tube concentrating device into a PH regulating tank for regulating the PH value to be neutral; treating the treated neutral water according to an anaerobic aerobic technique and a coagulation sedimentation technique, thereby completing the treatment process.

The invention provides a high-efficiency sedimentation basin and a process thereof. The high-efficiency sedimentation basin comprises a mixing unit, a flocculation unit and a concentration unit which are successively connected, wherein the mixing unit comprises a mixing basin used for carrying out mixing under stirring; the top of the mixing basin is provided with a sodium hydroxide feeding pipe, a ferric trichloride feeding pipe and a heavy metal capturing agent feeding pipe; the flocculation unit comprises a flocculation basin communicated with the mixing basin; the top of the flocculation basin is provided with a powdery active carbon feeding device; the concentration unit comprises a concentration basin communicated with the flocculation basin and is connected with a concentrated water reflux pipeline; and the concentrated water reflux pipeline receives concentrated water conveyed by a CMF membrane system. The high-efficiency sedimentation basin provided by the invention improves conventional high-efficiency sedimentation basin technology, is more applicable to treatment of desulphurization wastewater, can effectively remove fluorides, heavy metal ions (such as arsenic ions, lead ions and chromium ions) and other pollutants produced in wet-process desulphurization through reaction and precipitation, guarantees the operation environment of a subsequent membrane treatment process and produces good environmental benefits.

The invention belongs to the technical field of coagulants, and provides a magnetic coagulant and a preparation method thereof. The preparation method of the magnetic coagulant comprises the followingsteps: (1) sorting fly ash into magnetic fly ash and non-magnetic fly ash; (2) carrying out modification treatment on the non-magnetic fly ash by using a modifier to obtain modified fly ash; and (3)mixing the magnetic fly ash and the modified fly ash to prepare the magnetic coagulant. The magnetic coagulant provided by the invention can be used for removing substances such as colloid, suspendedmatters and organic pollutants in sewage, so that the content of COD in water is reduced, and meanwhile, the problems of over-high magnetic seed production cost, complex process flow and the like in amagnetic coagulating sedimentation technology are solved.

The invention discloses an initial rainwater treatment process based on a super-magnetic coagulating sedimentation technology, and belongs to the technical field of urban initial rainwater treatment.The system sequentially comprises a super-magnetic coagulation system and a sludge treatment system; sewage enters a magnetic loading system after passing through a grid, a flocculating agent is addedfirstly, then modified magnetic seeds and a coagulant aid are added, and finally, effluent reaches the standard and flows back to a river channel after the sewage passes through the magnetic loadingsystem; the precipitated sludge is separated from the modified magnetic seeds through a rotational flow recovery system, the modified magnetic seeds are recycled, the sludge enters the sludge treatment system to be compressed and conditioned, then the sludge is dewatered through a dewaterer, the sludge is transported outwards, and filtrate flows back to a water inlet pipeline to be circularly treated. According to the process, a super-magnetic coagulating sedimentation technology is adopted, the use amounts of the modified magnetic seeds, a coagulant and the flocculating agent are reasonably selected, urban initial rainwater is effectively treated, and indexes such as SS, COD and TP reach the first-grade A standard of GB 18918-2002.

The invention discloses a treatment method for reactive dye printing and dyeing wastewater. The method includes the steps of: firstly discharging printing and dyeing wastewater into a heat preservation precipitator in order, and adjusting the pH to 8-11; then adding a coagulant, discharging the supernatant obtained by coagulation sedimentation and the filter pressed wastewater of precipitate intoa heating and heat preservation reactor lined with a porous ceramic carrier, the surface of which is immobilized with a catalyst, and adjusting the pH of the wastewater to 5.5-6.5; then adding an oxidant, heating the wastewater to 80-95DEG C, and carrying out reaction to a COD of less than 80mg/L. The method firstly uses alkaline coagulation sedimentation technique to substantially remove easily precipitated slurry and macromolecular assistants from the wastewater, and then employs catalytic oxidation technique to remove difficultly precipitated components (including reactive dyes), lowers thecost and improves the oxidation efficiency, also has the characteristics of fast reaction speed, short residence time of wastewater, and high treatment efficiency. The treated wastewater has a COD ofless than 80mg/L and chroma less than 2 times, can be directly reused as rinsing water for scouring and dyeing stages, and has the advantages of high recycling rate, low emission, energy saving and environmental protection.

The invention discloses a dense medium material for enhancing coagulation-adsorption synergistic effect and a preparation method thereof, and the preparation method comprises the following steps: 1) adding a ferric salt solution into a graphene oxide suspension, and uniformly stirring to form a first solution; and 2) adding hydrazine hydrate into the first solution, uniformly stirring, heating to 90-100 DEG C, adding an ammonium carbonate solution, keeping the temperature for 2-4 hours, centrifuging, washing, drying and annealing to obtain the dense medium material for strengthening the coagulation-adsorption synergistic effect. The magnetic heavy medium can be used as a magnetic heavy medium core and an adsorbent at the same time, and has a heavy medium enhanced coagulation effect on suspended pollutants in water and an adsorption effect on soluble organic matters, and the application efficiency of a coagulating sedimentation technology in water treatment is further improved through the cooperation of the two. The preparation method is simple, feasible, low in production cost and high in yield, and the prepared material is high in stability and reusable and has the potential of being widely applied to industrial production.