33results about How to "Maximum removal" patented technology

The invention discloses an efficient reverse-osmosis concentrated water treatment method. The method comprises steps as follows: 1), the pH range of reverse-osmosis concentrated water is adjusted to be 6-9; 2), H2O2 is added, and the mixture reacts for 5-20 minutes; 3), the mixture enters an ozonation tower, the concentration of O3 in the ozonation tower is 50-200 mg/L, and the reverse-osmosis concentrated water stays for 0.5 h-2 h in the tower; 4), the mixture enters an electrocatalytic oxidation reactor and stays for 0.5 h-1.5 h in the tower; 5), the mixture enters a coagulative precipitation tank, PAM (polyacrylamide) is added, the mixture is subjected to coagulation stirring through a stirrer for 15-20 min; 6), the mixture enters a mechanical filter after being settled by a sloping plate, and filtered effluent is discharged up to standard. The method is not only suitable for high-salinity and high-alkalinity concentrated water produced through reverse osmosis recycling treatment after various kinds of up-to-standard biochemical treatment and is also applicable to other wastewater difficult to treat. The CODcr of the treated effluent is reduced to be under 60 mg/L from 120-400 mg/L and reaches the first-grade B standard in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002).

The invention discloses a method and device for determining arrangement of illuminance transducers and an illumination control system. The method comprises the steps that candidate arrangement positions of the illuminance transducers are determined, wherein the candidate arrangement positions of the illuminance transducers comprise positions of all interested points; the influence coefficients of all controllable light sources to the illuminance of all the candidate arrangement positions are determined, and the influence coefficients represent the sensitivity degrees of the illuminance of the candidate arrangement positions on the dimming levels of the controllable light sources; based on a performance evaluation function for evaluating the combined performance of the candidate arrangement positions, the arrangement positions used for arranging a second number of illuminance transducers are selected from the candidate arrangement positions, and the performance evaluation function for evaluating the combined performance of the candidate arrangement positions meets the condition that the lower the correlation among the measurement values of the combination of the candidate arrangement positions is, the higher the performance of the combination of the candidate arrangement positions is. By means of the method and device for determining arrangement of the illuminance transducers, the arrangement of the illuminance transducers is optimized by using correlation, cost can be saved, and the illuminance of all the interested points can still be obtained.

The invention relates to a method and a system for treating livestock and poultry culture wastewater, and belongs to the field of control of water pollution in environment engineering. The method comprises the following steps of separating solid and liquid of the livestock and poultry culture wastewater, further coagulating and precipitating to remove suspended solids in the wastewater; hydrolyzing the wastewater after removal of suspended solids, completely mixing, adjusting and homogenizing the quality and quantity of wastewater, and converting macromolecular organic pollutants into degradable micromolecular organic matters; adopting an anaerobic ammonia oxidation technique to remove the organic pollutants and ammonia-nitrogen in the wastewater; adopting an anoxic-aerobic technology to further degrade the organic matters in the wastewater, removing nitrogen and phosphor, and then separating sludge and water; finally, coagulating and precipitating again, and draining the up-to-standard effluent. The method has the advantages that the solid pollutants in the livestock and poultry culture wastewater are removed, and the organic pollutants and ammonia-nitrogen pollutants in the wastewater are effectively removed by steps and stages, so that the up-to-standard water can be drained; the technology is reliable, the treatment effect is good, and the running cost is low.

The invention belongs to the technical field of natural extract refining, in particular to a method for removing noxious substances in natural extract in high efficiency through supercritical treatment. The natural extract containing the noxious substances is pumped into an extraction kettle by a pump, wherein the technical parameters are that the pressure of the extraction kettle is between 10 and 40MPa, the temperature is between 32 and 60 DEG C; the pressure of a separation kettle is between 3.0 and 7.0MPa, and the temperature is between 30 and 45 DEG C; the flow rate of carbon dioxide is between 80 and 200L/h; and a residual product in the extraction kettle is discharged after the natural extract is maintained for 1 to 10 hours, and the residual product is the noxious substances-removed natural extract. Because the technology of supercritical treatment which is advanced and efficient is used, the noxious substances in the natural extract can be removed furthest, and industrial treatment can be realized.

Material is pneumatically excavated and removed by discharging air under pressure from an excavation nozzle at supersonic speeds in a forward direction for excavating the material, and simultaneously discharging air under pressure from an evacuation nozzle also at supersonic speeds in a rearward direction at an adjacent position rearward of the point of forward discharge for assisting the removal of the excavated material in a rearward direction. The evacuation nozzle is in the form of a continuous annular air stream that is maintained concentric with the excavation nozzle. The nozzles are sized to provide maximum excavation and removal efficiency in co-relation to the PSI and the CFM output capabilities of the selected air source and the nozzles are positioned sufficiently close to each other whereby dynamic flow coupling is established between the nozzles such that material digging and removal performance and efficiency are maximized.

The invention provides a mass data processing system and a method on the basis of a database, wherein the system comprises a database, a data collecting device, a data processing device and a data storage device, wherein the database is used for storing original data, the data collecting device is used for extracting data from the database according to set conditions and transmitting the extracted data to the data processing device, the data processing device is used for processing the received data in an odd-even alternation mode according to set dimensionality and transmitting the processed data to the data storage device, and the data storage device is used for storing the received processed data in a classified way. The mass data processing system and the method on the basis of the database disclosed by the invention have the advantages that the processing speed can be accelerated, and the storage space is saved, so the integral performance of the system is improved.

The invention discloses a novel precious metal snowflake pattern manufacturing method. The novel precious metal snowflake pattern manufacturing method comprises the steps that precious metal is manufactured to be of the needed specification in a pneumatic casting forming mode, then acid pickling and electrolysis are carried out on the precious metal, and therefore the precious metal with snowflake patterns is formed. By means of the method, as the pneumatic casting forming is adopted directly on the precious metal, crystal lattices will not crack or regroup, namely the crystal lattices can maintain the basically consistent size, and the display effect of the snowflake patterns is greatly improved.

The invention relates to a method for treating cutting fluid waste water and recovering an active ingredient of a cutting fluid by utilizing an extraction process. The method comprises the following specific steps: (1) adding a base substance into filtered cutting fluid waste water, and performing demulsification; (2) performing centrifugation on the demulsified mixed liquid to separate a precipitate; (3) performing multi-stage countercurrent extraction on the centrifuged mixed liquid by using an extraction agent to obtain an extract and extraction wastewater; (4) performing distillation on the extract, wherein the distillate is used as a recovered extraction agent, and the tower kettle liquid is the active ingredient of the cutting fluid; and (5) performing adsorption refining treatment on the active ingredient of the obtained cutting fluid, wherein the processed active ingredient of the cutting fluid can be reused for preparing a cutting fluid to realize recycling. The method provided by the invention is simple and easy to operate, and can effectively reduce COD in the waste water and realize recycling of the active ingredient in the cutting fluid waste water, thereby having veryhigh industrial application value.

The invention provides a high-temperature-condensed-water oil removing technology. The high-temperature-condensed-water oil removing technology comprises a carrier-type membrane assembly filtering stage and an active carbon filter oil removing stage and includes the specific following steps that 1, high-temperature condensed water is injected into a carrier-type membrane assembly from a raw water tank through a circulating pump; 2, the carrier-type membrane assembly filtering stage is carried out in a cross flow filtration mode, wherein the membrane face flow speed is 0.1 m/s to 5 m/s, the transmembrane pressure difference is 0.01 MPa to 0.3 MPa, the filtering accuracy of the membrane assembly is 0.001 micron to 100 microns, and the recirculation ratio is 80% to 99%; 3, the active carbon filter oil removing stage is carried out in a dead-end filtration mode, wherein the filtering speed is 3 m/s to 5 m/s. Compared with the existing high-temperature-condensed-water oil removing technology, the high-temperature-condensed-water oil removing technology has the advantages that cost is low, oil removing efficiency is high, and produced water meets the requirement for boiler feedwater and stable in quality.

The invention discloses a starch syrup purification and concentration method and relates to the technical field of syrup production. The method comprises steps as follows: (1) plate frame filtration:syrup is introduced into a plate-and-frame filter press for press filtration; (2) ion filtration: syrup filtered in the step (1) is introduced into multiple ion exchanger groups to remove impurity ions in syrup; cation exchange resin is placed in a cation exchanger, and anion exchange resin is placed in an anion exchanger; (3) evaporation and concentration: the syrup filtered and purified in the (2) is introduced into a falling-film evaporator for evaporation and concentration; the falling-film evaporator is communicated with a heating device heating the inside of the falling-film evaporator;the syrup is preliminarily and rapidly filtered through the plate-and-frame filter press, then, impurity ions in syrup are purified in ion exchangers, and clean and high-purity syrup is obtained; then, the syrup is concentrated in the falling-film evaporator. By means of the heating device, the working temperature of the falling-film evaporator is increased, and the concentration is shortened.

The invention discloses a precious metal snowflake pattern manufacturing method. The method comprises the following steps of heating precious metal at high temperature for multiple times, and rolling so as to manufacture the precious metal into the required specification, and then carrying out acid pickling and electrolysis on the precious metal, thereby forming the precious metal with snowflake patterns. Crystal lattices of the precious metal can be cracked and recombined for multiple times by the method, and the recombination of the crystal lattices is relatively regular, so that the sizes of the crystal lattices are basically consistent, thereby improving the display effect of the snowflake patterns.

The invention discloses a milk breaking powder medium-sized grain milk replacer for piglets. The milk replacer comprises a mixed milk replacer material, a high-temperature pretreatment material, a normal-temperature first premix, a normal-temperature second premix and low-protein whey powder in a mixing ratio of (6-14): (4-8): (0.8-2.8): (0.6-1.4): (0.6-1.4), wherein the mixed milk replacer material is composed of the high-temperature pretreatment material, the normal-temperature first premix, the normal-temperature second premix and the low-protein whey powder in a ratio of 6:2:1: 1. The milkreplacer also comprises additives and probiotics. By adopting the secondary granulation technique, the primary granulation temperature is 90 DEG C or above, and the antigen can be maximally eliminated, thereby enhancing the palatability and digestibility of the feed, further enhancing the feed intake of the piglets and ensuring the growth efficiency of the piglets. By adopting the composite micro-ecology, Clostridium butyricum and other probiotics, the milk replacer can protect the intestinal tracts of the piglets, kill harmful bacteria, protect the intestinal health of the piglets and lowerthe morbidity of the piglets, thereby enhancing the survival rate of the piglets.

The invention belongs to the field of pharmacy, and relates to a traditional Chinese medicine composition and a preparation method thereof, in particular to a traditional Chinese medicine compositionwith an anti-inflammatory effect and a preparation method thereof. The traditional Chinese medicine composition is prepared from, by weight, 20-30% of herba picriae, 15-25% of herba sarcandrae, 10-20%of herba houttuyniae, 10-20% of radix ilics pubescentis, 5-15% of radix scutellariae, 2-5% of licorice roots and 20-25% of a flavoring agent.

The invention discloses a dust gas and organic waste gas purification and filtration environmental protection treatment system, which comprises an operation area, a water cooling air conditioner, a washing tower for removing dust in waste gas, a UV photolysis device for removing organic matters in the waste gas, and a fan, the water-cooling air conditioner is communicated with an air inlet of theoperation area, the air outlet of the operation area, the washing tower, the UV photolysis device and the fan are sequentially communicated, and the waste gas sequentially passes through the washing tower and the UV photolysis device from the operation area and then is discharged by utilizing the fan. The environment-friendly treatment system is low in cost and good in treatment effect.