1285results about How to "Settling fast" patented technology

The invention relates to a high efficiency water treatment flocculant for drinking water and water treatment comprising a metal cation flocculant which is characterized in that the high efficiency water treatment flocculant also comprises a high efficiency adsorption component and an assistant medicament to be remixed, inwhich the weight ratio is: the high efficiency adsorption component 5-15%, the metal cation flocculant 50-85%, the assistant medicament 5-15%. The obvious characteristics of the invention are that each component can play the advantages of high intensity of the flocs of the inorganic flocculant and large flocs of the polymeric flocculant, overcomes the drawback of small flocs of the inorganic flocculant and low intensity of the flocs of the organic flocculant. The existence of the high adsorption component plays the action of adsorption of the organic compounds and heavy metal ion which are difficult to flocculat and precipitate, also plays the role of aid-coagulation, decoloration and deflavour. Thus the flocculant of the invention has advantages of good coagulation effect, large alum blossom, rapid settling velocity, good effluent quality and few dosage or the like.

The present invention provides a power regulation system and method with high speed signal settling capabilities for providing rapid active transient response to a microelectronic device. An active transient response system includes a power supply configured to receive external and/or internal signals indicating the occurrence of transient load conditions and to respond to the transient load conditions based on one or more of these signals. The system may further include a transient suppressor configured for early detection of transients, assisting in transient suppression, and early signaling of transient activity to the power supply.

The system provides rapid recovery to steady state operation from the active transient response mode by using a digital compensator to quickly modifying the duty cycle and provide a voltage offset proportional to the transient microprocessor load step. Recovery is further improved by current rephasing techniques.

A method for continuously determining the required dynamic range for an analog-to-digital converter by determining the received signal strength and using this received signal strength value in combination with the overall dynamic range for the ADC and the target resolution of the ADC to decode a radio channel in the absence of interference, wherein the target resolution is also related to the type of decoding to be performed subsequent to analog-to-digital conversion. The method allows for a reduction in power consumption associated with the ADC, especially when the incoming signal is received with few interfering radio channels and with a relatively high signal strength. The present method can be combined with gain control and analog alert detection.

Transducer elements of recording heads for magnetic storage media are moved independently in either of two directions with respect to the slider of the recording head. The motion is controlled using a micropositioner having magnetic coils integrated into the recording head. The transducer moves in the x direction between data tracks and in the z direction perpendicular to the surface of the magnetic storage medium. The micropositioners are used for small-scale positioning of the transducers over data tracks and to adjust fly heights. Because of the high minimum resonant frequencies and the low mass of the transducers, the micropositioners also improve settling times associated with track following. The micropositioners can be used during fabrication for dimensional control of recording head components. The motion of the transducers in the z direction enables the recording heads to be used reliably in the presence of asperities and changing ambient pressures and temperatures.

The invention discloses an efficient flocculent precipitate purification method for polymetallic ore benefication wastewater. Specifically, the purification method comprises the steps of: neutralizing and regulating the pH value of benefication wastewater by adopting a little amount of alkaline materials; then sequentially feeding a proper amount of proper suitable flocculant for efficient flocculation and a little amount of efficient coagulant aids for fast precipitation; separating sludge from water through action of a partition wall, wherein the treated wastewater achieves primary standardof national Integrated wastewater discharge standard (GB8978-1996); through SV30 evaluation; settling for 5minutes to achieve 45-55mL of supernatant by volume; and settling for 15 minutes to achieve 70-80mL of supernatant by volume. The purification method can fully utilize the traditional benefication wastewater lime and sedimentation process, is simple in procedure, and can simultaneously remove suspended particulate matters, organic matters and heavy metal ions in wastewater, is high in flocculation efficiency and fast in sedimentation speed, and can better solve the purification problem of the low-concentration and high-tubidity polymetallic ore benefication wastewater of multiple heavy metals.

The invention relates to a comprehensive electroplating wastewater treating agent. The comprehensive electroplating wastewater treating agent is composed of the following components in percentage by mass: 10-35% of reducing agent, 20-50% of sulfide, 10-30% of aluminum salt, 10-30% of adsorbing material and 5-15% of alkaline substances. The raw materials of the treating agent provided by the invention are low in cost and easy to obtain, and the treating agent is easy to prepare; through compounding the raw materials, a synergistic effect is exerted, and the treating agent is favorable in broad spectrum, capable of effectively removing heavy metals such as nickel, chromium, copper, zinc and the like, high in removal rate up to more than 96% and relatively good in COD (Chemical Oxygen Demand) removal effect; the comprehensive electroplating wastewater treating agent also has the characteristics of strong electroplating wastewater treating capacity, high heavy metal ion sedimentation speed and efficiency, no secondary pollution after treatment and the like; in addition, the treating agent provided by the invention is convenient to use, simple and feasible in treating process, capable of realizing operation by only using a vessel or pool with an aerating agitation device, reducing the floor area and reducing the investment, and easy to realize operation management.

The invention provides a capturing settling agent and a method for removing catalyst solid powder in oil slurry, the capturing settling agent comprises the following components by weight percent: 0-50% of alkyl R quaternary ammonium salt, 0-40% of flocculant solution and 0-100% of polyol. The method accelerates the settling speed of the catalyst solid powder in the FCC oil slurry by adding the capturing settling agent, overcomes the insufficiencies of the prior FCC oil slurry solid removal technology through a set of complete combined technology of using the capturing settling agent, reduces the ash content of the FCC oil slurry below 0.05%w and provides the quality assurance for the follow-up utilization of the oil slurry.

The invention relates to a dust fall agent for water mist dust fall. 0.06-0.2wt% of wetting agent permeation assistant is added to water, wherein the wetting permeation assistant comprises anionic surfactant, or cationic surfactant, or zwitterionic surfactant, or non-ionic surfactant. Because in the dust fall agent of the invention, 0.06-0.2wt% of wetting agent permeation assistant is added to water, thus the surface tension of the water can be reduced, the contact capacity of the water with dust particles is promoted, and solid materials can be soaked by water more easily through the wetting agent permeation assistant, thereby accelerating the wetting permeation velocity of water to the dust particles, accelerating the fall velocity of the dust particles, and reducing the fall time of the dust particles. Thus, the invention reduces the operation time and the operation cost, protects the health and safety of operation personnel, and can be widely applied to water spray, water sprinkling, dust fall and dust suppression of mines, tunnels or roads.

The invention relates to the technique for purifying and producing industrial phosphoric acid by wet-process phosphoric acid, which comprises the following steps of: (1) desulfurization and defluorination sedimentation-filtration process; (2) the extraction of wet-process phosphoric acid after desulfurization and defluorination process; (3) the washing of organic phase after extraction; (4) the back extraction of the organic phase after washing; (5) the refining of aqueous phase after the back extraction; (6) concentrating till containing 85wt% H3PO4 and recycling organic solvent. The technique has the beneficial effects that (1) the wet-process phosphoric acid produced by adopting the existing sulfuric acid process does need to be preconcentrated; (2) compound extracting agent of the technique has good suitability for the extraction of the wet-process phosphoric acid; (3) the compound extracting agent has better separating effect on iron ions and other heavy metal ions; (4) emulsion generated by the organic phase in the washing process can be eliminated by a warming/stewing mode; (5) the technique adopts amidine fiber adsorption column to refine wet-process phosphoric acid and can effectively absorb trace metal ions, and the clearance of the metal ions can reach 99 wt%.

The invention relates to a denitrifying agent for directly removing a basic nitrogen compound from shale oil. The denitrifying agent comprises the following components in percentage by weight: 40 to 80 percent of B, 0.5 to 10 percent of L, 0.1 to 0.5 percent of S and the balance of water, wherein B is phosphoric acid; L is Lewis acid; and S is a water-soluble demulsifier. The B in the formula can provide H+ which is complexed into salt with a lone electron pair of the basic nitrogen compound so as to remove the basic nitrogen compound from oil; L can accept the lone electron pair of the basic nitrogen compound to be complexed into salt, and the synergistic effect of B and L has high capacity of removing basic nitrogen; and S has good demulsifying effect and can improve the uniformly mixing degree of the water-soluble B and L agents with oil in the oil stirring process. Therefore, the nitrogen removal efficiency of a primary agent is improved.

Fine iron-based catalyst particles from. Fischer-Tropsch (F-T) synthesis processes are effectively separated from catalyst/liquid/wax slurry by contacting and/or mixing the slurry with a coalescence enhancing treating solution to facilitate gravity separation and settling of such catalyst, and thereby yield a substantially clean hydrocarbon liquid/wax product. The treating solution includes a surface tension reducing agent, an agglutinating agent, and a coalescing agent each in selected proportions in aqueous solution. Useful mixing and settling conditions are 10-250° C. temperature, 0-500 psig pressure and treating solution to slurry volume ratio of 0.5-5:1, with the settling time for at least about 90% and preferably substantially all of the catalyst fines after the mixing step being less than about 15 minutes. The treating solution can be desirably recovered and reused in the F-T synthesis process, and the recovered catalyst either recycled or disposed as desired.

The invention provides a treatment method of heavy metal wastewater, and particularly relates to a method for treating heavy metal wastewater by virtue of a precipitation method. The method comprises the following steps: adding sodium sulfide in a heavy metal wastewater treatment process, reacting sulfur ions with heavy metal ions in the wastewater to generate particulate matters, further adding sulfide precipitates of heavy metal, stirring, standing, and accelerating the sedimentation of micro particulate matters and other substances by using generated particulate matter precipitates; further preferably adding quartz sand, and accelerating the rapid sedimentation of the particulate matters and other substances under the wrapping action of quartz sand; further performing subsequent process treatment including sand filtration and ion exchange on a supernatant liquor obtained after sedimentation to reach the emission standard; and periodically discharging and collecting part of the precipitates, and recycling heavy metals in the precipitates. Because the method provided by the invention is simple in working procedure, low in cost and high in efficiency, the method can be widely applied to the treatment of industrial wastewater particularly the heavy metal wastewater.

The invention relates to electronic device having an operation temperature range, wherein the electronic device comprises a tunable capacitor (CST) comprising a first electrode (BE), a second electrode (TE), and a dielectric (FEL) arranged between the first electrode (BE) and the second electrode (TE). The dielectric (FEL) comprises dielectric material (FEL) having a value of a relative dielectric constant (ε_r) varying at least within the operation temperature range. The electronic device further comprises a temperature varying means (RES) being thermally coupled to the tunable capacitor for providing a temperature of the dielectric (FEL) causing a predetermined capacitance of the tunable capacitor (CST). The invention, which relies on the idea of varying temperature to vary a capacitance of a capacitor stack, provides an alternative tunable capacitor type for the known types. Advantageous embodiments feature high-tuning ratio, small device area, and stable capacitance value in case the temperature is well controlled. The invention further relates to a semiconductor device comprising the electronic device in accordance with the invention, to an electronic circuit comprising such electronic device, and to a method of manufacturing such electronic device.

The composite flocculant for treating printing and dyeing effluent consists of natural high molecular water soluble chitosan and polyaluminium chloride. The usage of the composite flocculant in treating printing and dyeing effluent includes regulating effluent to pH 6-8, and throwing composite flocculant in the amount of chitosan in 1-2 ppm and polyaluminium chloride in 100-250 ppm to result in printing and dyeing effluent decolorizing rate up to 91 %. The composite flocculant of the present invention has simple compounding process, easy use, low cost, small thrown amount, excellent decolorizing performance, fast deposition, small sludge amount, easy biodegradation, less secondary pollution of water and thus wide application foreground.

The invention relates to a preparation method for a heavy fraction and iron-based catalyst from fischer tropsch slurry phase, including the following steps: mixing slurry of fischer-tropsch synthesis products heavy fraction and iron-based catalyst from slurry reactor is sent into a deposition tank outside the slurry reactor, so as to facilitate the mixing slurry in deposition tank to realize fast separation for fischer-tropsch synthesis heavy distillates and iron-based catalyst under the function of magnetic field along the direction of magnetic force lines downwards. The separated fischer-tropsch synthesis heavy distillates can be discharged as product through a filter arranged on the top of the deposition tank. The method of the invention can realize fast separation of heavy distillates and iron-based catalyst of fischer-tropsch synthesis products; meanwhile, move than 99.95 percent of catalyst particles can be left in the reaction system to continuously function as catalyst.

The invention discloses a dressing process for a plurality of sorts of slag mixed materials currently applied to domestic industrial production. The dressing process has better adaptability, and is suitable for the treatment of both mixed slag materials and slag materials generated by various smelting processes, thereby providing an effective way for reclaiming domestic copper slag resource. The dressing process not only has short process flow, less investment, low energy consumption, no pollution and lower production cost, but also breaks through index which cannot be realized by the prior common slag dressing process, thereby obtaining remarkable economical and social benefits. Therefore, the dressing process provides powerful technical support for realizing recycling economy strategy of copper resource from one aspect, and has wide application prospect in the field of copper slag dressing.

The invention discloses a method for preparing a heavy metal ion catching agent. The heavy metal ion catching agent is mainly formed by being prepared by urea, amine compounds, carbon disulfide, an additive, alkaline matter and distilled water. The heavy metal ion catching agent comprises, by weight, 9-30% of the urea, 1-6% of the amine compounds, 0-4.5% of the additive, 21-45% of the carbon disulfide, 8-17% of the alkaline matter and 20-35% of the distilled water. The method comprises the preparation steps of mixing the urea with the water, adding the alkaline matter to adjust the pH value, adjusting the reaction temperature, adding the micromolecular amine compounds, adding the additive, dropwise adding the carbon disulfide, controlling the temperature to conduct the reaction for a certain time, conducting suction filtration, using ethyl alcohol for conducting washing and drying, and obtaining the polyurea dithiocar-bamate heavy metal ion catching agent. According to the method for preparing the heavy metal ion catching agent, the production cost of the dithiocar-bamate heavy metal ion catching agent is remarkably reduced, and the actual treatment effect, on heavy metal ion waste water, of the heavy metal ion catching agent is good.

The invention discloses a purifying treatment agent for coal-washing wastewater and a preparation method thereof. The purifying treatment agent is prepared from the following materials in parts by weight: 30-40 parts of sepiolite, 15-20 parts of montmorillonite, 10-15 parts of medical stone, 15-20 parts of polyacrylamide, 5-10 parts of sodium polyacrylate, 3-6 parts of aluminium polychlorid, 2-4 parts of sodium lignin sulfonate, 3-5 parts of alum powder, 6-9 parts of ferrous sulfate, 8-12 parts of guar gum powder, 5-10 parts of nano carbon, 4-8 parts of porous calcium phosphate, 10-15 parts of carboxymethyl chitosan, 5-10 parts of sodium alginate, 2-3 parts of span-80, 1-2 parts of sodium lauryl sulfate, 1-2 parts of stearic acid and 0.5-1 parts of gamma-aminopropyltriethoxysilane. The purifying treatment agent disclosed by the invention has the advantages that the flocculation effect is good, impurity particles in coal-washing water can be rapidly agglutinate and settled, simultaneously heavy-metal elements in the coal-washing water can be absorbed, the purifying effect is very obvious, the water purifying effect is 4-6 times of that of the common flocculating agent; and the used amount is less, the efficiency is high, the cost is low, the benefit is high, the complete environmental-friendly effect is achieved and the application prospect is wide.