149results about How to "Improve rinsing efficiency" patented technology

Disclosed herein are a washing machine and a control method of the same that is capable of maximizing a contact time between water and laundry, thereby improving the rinsing efficiency while using a small amount of water. The washing machine includes a water tub, a rotary drum mounted in the water tub to receive laundry, and a circulation unit to supply water from the water tub into the rotary drum. The control method includes detecting an amount of load according to a weight of the laundry, supplying an amount of water set according to the detected amount of load into the water tub, and supplying the water in the water tub to the laundry by alternately operating the rotary drum and the circulation unit.

A drum washing machine and washing method are provided. The washing machine directly sprays water to laundry inside the drum through a nozzle unit. The method includes passing some water through a detergent container and directly spraying some water to the inside of a drum through a nozzle unit such that a high concentration of detergent bubbles is generated while applying a force to the laundry. The washing machine includes a cabinet, a tub inside the cabinet, a drum inside the tub, a door on the cabinet, a diaphragm, and a nozzle unit installed so interference with the door is avoided and to receive water directly from an external source to spray water inside the drum during a washing cycle and a rinsing cycle. The nozzle unit adjusts water jetting according to a displacement of an actuator installed inside the nozzle unit.

A washing machine that controls water supply modes of washing and rinsing operations and a control method thereof. For the washing operation, the wetting of the laundry is improved through the supply of water in unidirectional rotation in which the water is supplied while a washing tub and a pulsator are simultaneously rotated in one direction. For the rinsing operation, laundry is quickly separated from the washing tub, such that the laundry is sufficiently mixed with the water, through the supply of water in unidirectional rotation and the supply of water in alternating-direction rotation in which the water is supplied while only the pulsator is rotated in alternating directions, thereby achieving rinsing utilizing water supply time, and, in addition, turnover of the laundry is smoothly achieved such that washing residues present on the laundry are effectively removed from the laundry, thereby improving rinsing efficiency.

The invention relates to a drip washing method for remedying cadmium-contaminated soil. The drip washing method comprises the following steps: taking hydroxy ethylidene diphosphonic acid (HEDP) with the concentration of 0.5-11% as a drip washing agent, and adding the drip washing agent into the cadmium-contaminated soil; collecting eluate, so that the washing process is completed. Experiments show that the drip washing agent has a relatively good effect on removing cadmium in the soil. The drip washing method has the advantages of high remedying efficiency, strong operability, low environmental risk and the like.

A rinse control method for a washing machine including the steps of rinsing water supplying and infiltrating for supplying rinsing water rotating an inner tub at relatively low speed so that the rinsing water can be infiltrated into washing materials and rinsing water permeating and exhausting for draining the rinsing water rotating the inner tub at relatively high speed so that the rinsing water can be exhausted to the outside passing through the washing materials enable a swift rinsing operation with a smaller amount of rinsing water.

The invention discloses preparation and application methods of a fabric normal-temperature rinsing system. The preparation and application methods belong to the household and industrial rinsing field. According to the rinsing system, a cation bleaching activator N-[4-(trialkylamine methylene)benzoyl]lactam chloride and a hydrogen peroxide precursor are combined to be applied in fabric rinsing, various colored spots on pure yarn or blended fabrics of cotton, linen, silk, wool and chemical fiber and the like can be efficiently rinsed at room temperature or under an approximately neutral condition. The bleaching effect of the fabric normal-temperature rinsing system is much more remarkable than that when the cation bleaching activator is not added. In addition, fabrics will not be subjected to obvious chemical damage. The methods provided by the invention are very suitable for washing Chinese family clothing at room temperature.

The invention relates to an ectopic-in-situ combined bioremediation method of high-concentration petroleum contaminated soil, and belongs to the technical field of contaminated soil remediation. The ectopic-in-situ combined bioremediation method comprises the following steps: firstly, high-concentration petroleum contaminated soil is subjected to ectopic biological piling, so that the concentration of petroleum hydrocarbon in soil is reduced greatly; then a certain amount of the piled materials are returned to the field, so that the concentration of petroleum hydrocarbon in soil after field return is less than 2000mg.kg<1-> to meet the in-situ remediation requirement; finally, the remediation requirement is achieved after in-situ remediation. The ectopic-in-situ combined bioremediation method is combined skillfully so as to achieve the economical and efficient remediation effect.

The invention provides a process for extracting uranium by the ion exchange method of water closed-circuit circulation, which first uses an acidic leaching agent to leach uranium ore; then uses a weakly basic anion exchange resin to perform ion exchange adsorption on the leaching solution to obtain a uranium-loaded resin and an adsorption tail liquid; leaching the loaded uranium resin, and recovering uranium products from the leaching liquid. It processes the loaded uranium resin according to the following steps: (1) wash the loaded uranium resin with an alkaline solution with a total carbonate or bicarbonate concentration of 0.5-1.5 mol / L; (2) wash the loaded uranium resin The resulting qualified uranium-containing eluting liquid is precipitated with NaOH; all the precipitated mother liquid is cooled by a refrigerator to remove sulfate and then returned to prepare eluent. The invention improves the traditional ion exchange uranium extraction process, that is, does not introduce chloride radicals or nitrate radicals in the leaching process of the uranium-loaded anion exchange resin, avoids adverse effects on the process flow, and realizes closed circuit circulation of process water at the same time, thereby achieving environmental protection requirements.

The invention relates to a tunnel type continuous washing machine, and belongs to the field of washing equipment. The tunnel type continuous washing machine comprises a pre-washing area, a main washing area, a rinsing area and an after-treatment area, wherein a dewatering area is inserted between the main washing area and the rinsing area and comprises an inner barrel and an outer barrel; two panels are respectively fixed at an inlet and an outlet of the inner barrel; an inlet supporting steel ring and an outlet supporting steel ring are respectively fixed on surfaces, which are not fixed on the inner barrel, of the inlet panel and the outlet panel; the inlet supporting steel ring, the outlet supporting steel ring and the inner barrel are integrated; an optional one of the inlet supporting steel ring and the outlet supporting steel ring is connected with an external driving device; a conveying screw plate is fixed in the inner barrel; a through hole is formed in the inner wall of the inner barrel; and the inner barrel of the dewatering area is driven by an independent motor to rotate. By using the tunnel type continuous washing machine, the rinsing efficiency can be effectively improved; water consumed during rinsing is reduced; resources are saved; dewatered cloth grasses are easily rinsed cleanly; and a washing effect is obviously improved.

The invention discloses an eluting agent for repairing organic matter and heavy metal compound contaminated soil, an eluting method of the compound eluting agent and an eluting agent recycling method,wherein the eluting agent is prepared by compounding Tween 80 and EDTA. The eluting method comprises the following steps: adding the eluting agent into the contaminated soil, oscillating, mixing, centrifugally separating an eluting solution, adding the compound eluting agent solution again into the soil subjected to first-time eluting, performing secondary elution, and repeating for four times. The eluting agent recycling method comprises the following steps: transferring the separated eluting solution into a photoelectric recovery device, adding sodium persulfate and sodium sulfate electrolytes, turning an ultraviolet lamp and a power supply for photoelectric treatment for 2.5 hours to selectively degrade organic matters in the eluting solution and recover heavy metals. The compound solution of the Tween 80 and EDTA-2 Na is used, a plurality of times of continuous eluting are carried out, a photoelectric synergistic persulfate method is adopted to regenerate the eluting agent, and the organic matter and heavy metal compound contaminated soil can be effectively repaired synchronously. The method has the characteristics of simple process, convenience operation, short time consumption, high efficiency and the like.

The invention discloses a method for preparing high-activity double-effect seed crystals from an intermediate product, namely metatitanic acid, of titanium dioxide. The method comprises the following steps of: with metatitanic acid as a raw material, preparing clear titanium sulfate liquid, cooling the clear titanium sulfate liquid, adding a diluent of the clear titanium sulfate liquid to alkaline liquor, controlling pH value to 7.5-9.0, filtering and washing the obtained product, carrying out secondary washing on the washed product, carrying out acid dissolving on hydrofluoric acid and hydrochloric acid for short time under the lower temperature to obtain the high-activity double-effect seed crystals with hydrolyzed seed crystal performance and calcined seed crystal performance. According to the invention, the required titanium source is from the intermediate product produced from the titanium dioxide powder, therefore the method has low cost and production stability; in seed crystals, non-rutile promoted seed crystals and rutile promoted seed crystals are appropriate in proportion and have dual effects of hydrolyzed seed crystals and calcimined seed crystals; when the method is used for titanium dioxide production, calcined seed crystals are unnecessary to be additionally produced, the working procedure of adding the calcined seed crystals in the bleaching process is reduced, the bleaching time is shortened, and the rinsing efficiency is improved at the same time. The seed crystals prepared by using the method disclosed by the invention have high activity, excellent performance and capability of meeting hydrolyzing and calcining requirements just by adding 2 % of seed crystals.

The invention relates to the technical field of daily chemical detergents, and provides a stable long-acting fragrance-retaining laundry condensate bead. The stable long-acting fragrance-retaining laundry condensate bead comprises, by mass, 10-30% of fatty alcohol-polyoxyethylene ether sodium sulfate, 5-20% of secondary alkyl sodium sulfonate, 15-35% of iso-tridecanol polyoxyethylene ether, 10-30%of modified grease ethoxylate, 10-20% of a solubilizer, 0.2-2% of a dispersing agent, 0.2-1% of a dispersing aid, 0.5-5% of a thickening agent, 0.5-2% of an anti-reprecipitation agent, 0.8-2% of preservative, 0.8-2.2% of microcapsule essence and 0.5-3% of essence. According to the formula, a solution system which is stable and good in suspension effect is formed, the microcapsule essence can stably exist in a material body, and the problems that in the prior art, the microcapsule essence and a laundry condensate bead liquid material body are prone to layering, and the unstable phenomenon exists are solved.

A method of washing fabric articles in a tunnel washer includes moving the fabric articles from the intake of the washer to the discharge of the washer through first and second sectors that are a pre-wash zone. Liquid can be counter flowed in the wash interior along a flow path that is generally opposite the direction of travel of the fabric articles. The main wash zone can be heated as an option. In the wash zone, there is a pre-rinse and / or a rinse. The fabric articles are transferred to a water extraction device that enables removal of excess water. A sour solution can be added to the fabric articles while extracting excess water.

The invention discloses a washing system for removing lead in polluted soil. The washing system comprises ionic liquid containing choline chloride and urea and oxalic acid. A preparation method of the washing system comprises the following steps that the urea and the choline chloride are weighed correspondingly, subjected to vacuum drying, mixed evenly, and heated and stirred for 0.5 h in an oil bath at the temperature of 100 DEG C, and colorless and thick liquid, namely ionic liquid with the choline chloride and the urea, is obtained; and finally the oxalic acid and the ionic liquid with the choline chloride and the urea are fully and evenly mixed, so that the washing system is obtained. According to a use method of the washing system, the polluted soil is taken and added into the washing system for removing the lead in the polluted soil, mixing and vibration washing is carried out, and then remediation of the lead polluted soil is finished. The washing system for removing the lead in the polluted soil has the advantages of being low in cost, environmentally friendly, easy to prepare, efficient and the like, the washing efficiency is improved through the synergistic effect of the eutectic ionic liquid and the organic acid, and the washing system can be applied to treatment of soil in mining areas, and has good application prospects.

The invention provides preserved green plum food without additives and a making method thereof and belongs to the technical field of food processing.The preserved green plum food comprises 600-1200 parts of preserved green plum, 5-30 parts of aloe vera gel powder, 1-20 parts of green tea powder, 5-50 parts of folium mori powder and 1-10 parts of bunge cherry seed powder.The preserved green plum food is good in plumpness and good in taste and has healthcare effects of appetizing and tonifying the spleen and improving the intestines and stomach.

The invention discloses a gradient leaching technology of a weathering crust elution-deposited rare earth ore residual ore leaching agent and aims at a closed ore field of weathering crust elution-deposited rare earth ore. Water, a low-concentration leaching solution and a high-concentration leaching solution are sequentially injected into the closed ore field of the rare earth ore by utilizing aliquid injection pipe left in the dump leaching or in-situ leaching process for leaching, and the obtained eluent is recycled, so that the problem of regional ammonia nitrogen pollution caused by slowrelease of a residual ammonium salt leaching agent is effectively solved. According to the method, the gradient leaching technology is proposed for the first time, so that the leaching efficiency ofresidual ammonium can be remarkably improved while the usage amount of a metal salt leaching agent is effectively reduced, and the related leaching technology is simple in process, convenient to operate and short in period, has important economic and environmental benefits, and can provide a brand-new thought for efficient and rapid treatment of the residual ammonium salt ore leaching agent in theclosed ore field.

The invention relates to a uranium hydrometallurgy ion exchange tower with filtration equipment comprising multilayer stand pipes. The ion exchange tower comprises a tower body, wherein the filtration equipment is fixedly mounted at the bottom of the tower body through a bottom plate; a resin outlet formed in the bottom plate is communicated with a resin outlet formed in the filtration equipment; a liquid outlet formed in the bottom plate is communicated with a liquid outlet formed in the filtration equipment; a sealing washer is arranged between the bottom plate and the filtration equipment; the filtration equipment comprises a base, four multilayer stand pipes, and a fixing annular plate; the four multilayer stand pipes are in welded connection with four liquid inlets formed in the upper plate of the base respectively; the open end of each multilayer stand pipe is corresponding to a liquid inlet; the fixing annular plate is in welded connection with the top plates of the four multilayer stand pipes.

The invention discloses a processing technology for a squid cake. The processing technology comprises the following steps: 1) pretreatment of a raw material; (2) rinsing and removal of fishy smell; (3) dehydration; (4) chopping; (5) kneading; (6) forming; (7) shaping; and (8) quick-freezing and refrigeration. According to the invention, conventional processing technology is optimized; the processing technology for the squid cake in the invention is simple in steps and good in operability; the prepared squid cake loses little juice during unfreezing and has good gel properties and taste; after the squid cake is roasted, fried or deep-fried, the squid cake has a more compact structure, delicate taste and good elasticity, presents flavor unique to squids and is rich in nutrients; and the processing technology provides a novel processing approach for squids, and is beneficial for increasing the added value of squids and suitable for promotion and application.

The invention relates to an in-situ decrement remediation method for a cadmium-polluted farmland, which comprises the following steps: turning over a farmland to be repaired, meanwhile, introducing aneluting agent solution into the farmland to enable the turned-over soil and the eluting agent solution to be uniformly mixed, then standing for layering, putting an ecological floating plate into thefarmland, and taking out the ecological floating plate after 15-30 days, so as to realize in-situ removal of cadmium in the cadmium-polluted farmland. According to the method, efficient decrement remediation of the Cd-polluted farmland is carried out in situ, the technological process is simple, the cost is low, and the method is environmentally friendly.

The invention discloses a method for repairing polluted soil through low-temperature thermal desorption with chemical drip washing. The method comprises the following steps: firstly, performing low-temperature thermal desorption treatment on mercury polluted soil so as to remove metal mercury, organic combined mercury and a part of inorganic combined mercury with a low melting point in the soil; secondly, performing drip washing with a mixed liquid containing organic acids, iodate and chlorine salts so as to remove mercuric oxide with a high melting point; and finally performing drip washing on mercuric sulfide with a high melting point with a mixed liquid of sodium sulfide and sodium hydroxide. By adopting the method, efficient removal of mercury of multiple valence states in mercury polluted soil can be achieved, a small amount of mercury is retained, the removal rate of mercury is up to 95% or greater, secondary pollution to the environment is avoided, and the cost is low.

A method for rinsing endoscope channels of an endoscope with a rinsing agent from a rinsing agent supply. The method including: connecting a first endoscope channel to the rinsing agent supply via a first rinsing agent distributor, which has a testing device for checking an endoscope channel for a blockage; connecting at least one other endoscope channel to the rinsing agent supply via a second rinsing agent distributor; and checking the first endoscope channel for a blockage using a testing device and simultaneously rinsing the at least one other endoscope channel with rinsing agent from the rinsing agent supply. A device is also provided for rinsing endoscope channels of an endoscope with rinsing agent from a rinsing supply.

Disclosed herein are a washing machine and a rinsing control method of the same that is capable of increasing spin-drying RPM before the final rinsing, such that the spin-drying RPM before the final rinsing is higher by a specific percentage than a predetermined RPM, to strongly squeeze out residual detergent, contained in laundry, from the laundry, and adding soaked rinsing time, during the final rinsing, to completely dissolve residual detergent contained in laundry, thereby improving the rinsing efficiency. The washing machine includes a rotary drum to receive laundry and a motor to rotate the rotary drum. The rinsing control method includes determining whether a current operation is a rinsing operation, and, when the current operation is the rinsing operation, controlling intermediate spin-drying RPM and rinsing time to remove residual detergent from the laundry.

The invention relates to a method for remedying heavy metal-contaminated soil by combining chemical reduction and chemical leaching, and aims to provide a method for remediation by virtue of combination of chemical reduction and chemical leaching. The method is used for eluting iron and manganese oxides to improve an effect of removing heavy metals from soil by using a leaching agent. The method comprises the following steps of performing leaching by using a reducing agent aqueous solution, namely performing vibratory washing on the contaminated soil by using the reducing agent aqueous solution, and filtering washing liquid after centrifugation; and performing leaching by using a Na2EDTA (Ethylene Diamine Tetraacetic Acid) aqueous solution, namely adding the Na2EDTA aqueous solution into the contaminated soil leached by the reducing agent aqueous solution for vibratory washing, and filtering washing liquid after centrifugation.

The invention provides an ex-situ intensified washing method for chlorpyrifos contaminated soil. The method comprises the following steps: adding 200mL of reclaimed water in a sewage treatment plant into a conical flask with a stopper filled with uncontaminated loess, and extracting a loess extracting solution under ultrasonic assisted stirring and heating conditions; weighing 5g of crushed straws and adding the crushed straws into the conical flask filled with the loess extracting solution, sealing and culturing by using a preservative film with pores; centrifuging after the humification process is ended, filtering through a filter membrane being 0.45 micrometers so as to obtain a straw humification solution; and performing intensified washing on the chlorpyrifos contaminated soil by taking a mixed solution of the loess extracting solution prepared in the first step and the straw humification solution prepared in the second step as a washing solution. According to the method, the defects in the prior art are overcome, the process is simple, the cost is low, the washing solution is natural and environmentally friendly, secondary pollution in the washing process is avoided, the washing efficiency is high, and the method has high actual application potential.

The invention relates to a method for extracting uranium by using an ion exchange fixed tower, in particular to a method for extracting uranium by using an ion exchange fixed tower under the alternate Ph condition. The method comprises the steps of absorbing uranium by barren resin and eluting the uranium-carried resin to obtain uranium, wherein the step of eluting the uranium-carried resin to obtain uranium also comprises the following stages of elution neutralization, qualified liquid elution, first barren elution and second barren elution. In the stage of elution neutralization, an alkali eluent is used to neutralize residual acid in the uranium-carried resin, and the feeding mode is lower liquid feeding; in the stage of qualified liquid elution, the feeding mode is upper liquid feeding; in the stage of first barren elution, the feeding mode is upper liquid feeding, and the effluent liquid is a first barren solution; and in the stage of second barren elution, the feeding mode is upper liquid feeding, and the effluent liquid is a second barren solution. The invention increases elution efficiency and shortens elution volume by dividing the step of eluting the uranium-carried resin to obtain uranium into the stages of elution neutralization and qualified liquid elution and by respectively using the upper liquid feeding mode and the lower liquid feeding mode.

The invention relates to a method for leaching heavy metal contaminated soil by ultrasonic strengthening organic acid. The method comprises the steps of firstly, mixing organic acid and the heavy metal contaminated soil, and then leaching the heavy metal contaminated soil by the ultrasonic strengthening organic acid, wherein the ultrasonic frequency is 20-40kHz, the ultrasonic sound energy density is 20-50W / L, and the time for leaching the heavy metal contaminated soil by the ultrasonic strengthening organic acid is 5-20 minutes. After the method is used, the leaching effect of the heavy metal contaminated soil is improved, and the morphology distribution of the heavy metal is changed; the repair for leaching the heavy metal contaminated soil by the ultrasonic strengthening organic acid is an environment-friendly repair method; the method is simple in technology, short in leaching time and good in repairing effect.

The invention provides a system for contaminated soil in-situ repairing and an application method thereof. The system for contaminated soil in-situ repairing comprises a refrigerating machine, a liquid injecting pump, a vacuum pump, a steam-water separator, a plurality of temperature sensors and at least one freeze-thaw washing unit. Two liquid pumping drainage plates of each freeze-thaw washing unit are symmetrically distributed on the outer side of a freezing pipe with the freezing pipe as the center, and two liquid injecting drainage plates are symmetrically distributed on the outer sides of the liquid pumping drainage plates with the freezing pipe as the center. According to the system for contaminated soil in-situ repairing and the application method thereof, by adopting a mode of combining artificial freezing and vertical shaft washing, viscid heavy metal contaminated soil is subjected to in-situ repairing, the contaminated soil does not to be dug, in-situ repairing is achieved,the repairing cost is reduced, the problem that the washing efficiency is low in low-permeability clay through a current existing in-situ vertical shaft washing method is solved, the technology is simple, the cost is low, and application and popularization are facilitated.

A wafer cleaning process includes the steps of supplying a cleaning liquid while rotating the wafer at a first rotational speed, supplying a rinsing liquid on the wafer at a second rotational speed substantially equal to the first rotational speed, supplying a rinsing liquid on the central area of the wafer while substantially stopping the wafer, and rotating the wafer at a fourth rotational speed higher than the first and second rotational speeds to scatter the stored rinsing liquid by a centrifugal force.

The method is a method of rinsing an endoscope in an endoscope cleaner placed in a vessel. The method includes a step of charging a surfactant into a vessel in addition to water to fill the vessel with a first rinse water containing the surfactant, a step of rinsing the endoscope placed in the vessel with the first rinse water, a step of supplying only water into the vessel after rinsing with the first rinse water to fill the vessel with a second rinse water that does not contain the surfactant and a step of rinsing the endoscope with the second rinse water. In the method, the action of the surfactant contained in the detergent is effectively utilized in a rinsing treatment of the endoscope while the endoscope is rinsed to thereby ensure that re-deposition of dirt is suppressed to enhance the overall cleaning efficiency.