38 results about "Sedimentation technique" patented technology

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 electrodeplates 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%.

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 super-light ultrathin flexible nano metal / nanofiber composite membrane with an X-ray shielding property and a preparation method of the super-light ultrathin flexible nano metal / nanofiber composite membrane, and belongs to the technical field of X-ray shielding materials. The preparation method comprises the following steps: by using a method that an electrospinning technique and a metal chemical sedimentation technique are combined, forming nano metal particles which are of specific morphology and are continuously and tightly accumulated on surfaces of organic nanofibers, forming a nanofiber membrane with nano metal sedimentation, overlapping nanofiber membranes layer by layer through hot pressing or with a resin reinforcing agent, thereby obtaining the super-light ultrathin flexible nano metal / nanofiber composite membrane. The density of the membrane is only 5-20% of that of a pure metal, the conductivity of the membrane has anisotropism, the transverse conductivity has properties of metal conductivity, and the longitudinal conductivity accounts for 1 / 10 million of the transverse conductivity. Due to adsorption loss of the nano metal particles, multiple times of reflection of fiber membranes, nano structure scattering and macroscopic structure scattering, incident X-rays are hard to overflow, then effective absorption can be achieved, and X-ray equivalent wide frequency band electromagnetic protection materials of novel full-nano structures with good properties can be prepared.

The invention discloses a method for treating slaughterhouse wastewater by adopting a CSTR-coagulation sedimentation-A / O technology. The method comprises the following steps: conveying the slaughterhouse wastewater into a water collecting tank, then conveying to CSTR and carrying out reaction, enabling effluent to automatically flow into a regulating tank, a coagulation sedimentation tank, an A / O reaction tank and a secondary sedimentation tank, carrying out mud-water separation in the secondary sedimentation tank, enabling supernatant to enter a disinfecting tank to be disinfected and discharged after reaching the standard, enabling partial sludge at the bottom of the sedimentation tank to reflux to an anoxic pond, discharging the rest of the sludge into a sludge concentration tank by virtue of a sludge pump, carrying out gravity concentration, dehydrating by virtue of a plate-and-frame filter press, and then transporting outward, so that treatment on the slaughterhouse wastewater is realized. By virtue of the method disclosed by the invention, the slaughterhouse wastewater can be comprehensively treated, so that content of CODcr, BOD, TSS and heavy metals in effluent obtained after the wastewater is treated is obviously lowered; meanwhile, coagulation reaction is carried out by virtue of a coagulator in the invention, heavy metals prepared from waste leather in a slaughter process are utilized for carrying out adsorption reaction, and the problem that the content ofnitrogen, phosphorus, heavy metals, feed organic matters and the like in low-concentration wastewater exceeds standard is well solved.

The invention discloses a method for anaerobic biodegradation synergistic gradient coagulation and adsorption treatment of artificial stone wastewater. Firstly, it is treated with coagulation and sedimentation facilities, and then enters an anaerobic reactor to perform anaerobic biological treatment on artificial stone wastewater to remove part of organic pollution. material; optimize coagulation and sedimentation technical parameters, connect multi-stage coagulation and sedimentation facilities for treatment, and follow-up adsorption. In the EGSB reactor, domesticated beer wastewater anaerobic sludge is used to treat the effluent after adsorption, and the artificial stone processing wastewater is thoroughly treated. After three-stage coagulation, adsorption and biological treatment, the SS of the wastewater supernatant was 4.52mg / L, the turbidity was 5.9NTU, and the COD was 26.18mg / L; the removal rate of SS reached 99.77%, and the removal rate of turbidity reached 99.49% %, the COD removal rate is 99.08%; the effluent COD reaches the comprehensive sewage discharge standard. The technical scheme of the invention has the advantages of simple process, good treatment effect and the like, and is suitable for popularization and application.

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 an apple pectin discolor technique and production white fine apple pectin technique. The technique has improved the traditional production pectin technique that is acid extraction alcohol sedimentation technique. And it exactly controls condition of raw material extraction pre process operation, increases the processing link of acid extraction liquid trash extraction discolor, and adopts the Japanese late macroporous resin HP2MGL layer adsorption column to do dynamic handing to the acid extraction liquid to make the removing rate of the phenols reach over 88%. The high quality pectin powder can be gained by condensing, drying, smashing from the purified extracting solution. And the phenols material that contains phenol over 60% would be gained.

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 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 conventionalmedicinal 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 theproduction period, saves the raw material of ethanol, lowers the cost and is beneficial for solving the problem of the potential safety hazard of factories.