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1416 results about "Softened water" patented technology

Softened water is basically hard water with the calcium and magnesium removed. The most popular and least expensive way to soften water is using salt to eliminate the minerals in the water. Hard water going through the softening process ends up with just one ion in the water and that ion is salt.

Zero-emission integrated process for treatment and reuse of high-salinity wastewater

The invention discloses a zero-emission integrated process for treatment and reuse of high-salinity wastewater. The invention relates to a softening desalination treatment technology of water and particularly relates to a reuse treatment system for reverse osmosis concentrated water containing low-concentration organic matters which can achieve the requirement of 'zero emission'. The integrated process comprises the following steps: (1) firstly softening and pre-treating the high-salinity wastewater; (2) acquiring pre-treated water by virtue of activated carbon adsorption and an ultrafiltration device; (3) acquiring nanofiltration softened water and nanofiltration concentrated water by virtue of a nanofiltration device; (4) acquiring reverse osmosis softened water and reverse osmosis concentrated water by virtue of a reverse osmosis device; (5) acquiring electrodialysis softened water and electrodialysis concentrated water by virtue of an electrodialysis device; and (6) carrying out evaporation crystallization treatment on the electrodialysis concentrated water by virtue of an evaporation-crystallization device, regularly outwards transporting salts generated by the evaporation crystallization, feeding generated salt into a water-producing tank to enter a reuse system and finally completing the treatment and reuse of high-salinity wastewater. The integrated process is mainly used for the integrated treatment of the high-salinity wastewater.
Owner:XINJIANG DELAND

Environment-friendly type hyperconcentration biological enzyme liquid laundry detergent and preparation method thereof

The invention relates to a detergent for daily use, and specifically relates to an environment-friendly type hyperconcentration biological enzyme liquid laundry detergent and a preparation method thereof. The prepared product in the invention is mobile liquid with low viscosity, contains no phosphates, fluorescent brightening agents or alkylphenol polyoxyethylene, and has no pollution to environment. The production process for the product is simple; preparation and mass production of the product are easy; the product can be widely used for washing of various fabrics and clothing and is both applicable to hand wash and machine wash. The environment-friendly type hyperconcentration biological enzyme liquid laundry detergent comprises, by weight, 0.5 to 50 parts of fatty alcohol polyoxyethylene ether sodium sulfate-70, 0.5 to 50 parts of fatty alcohol polyoxyethylene ether-9, 0.5 to 30 parts of sodium alkylbenzene sulfonate-60, 0.2 to 15 parts of triethanolamine, 0.1 to 10 parts of sodium citrate, 0 to 5 parts of citric acid, 0 to 5 parts of aliphatic acid, 0.02 to 8 parts of biological enzyme, 0.1 to 20 parts of an enzyme stabilizer, 0.5 to 30 parts of a solvent, 0 to 15 parts of a hydrotropic agent, 0 to 5 parts of a bactericide, 0.001 to 5 parts of an antiseptic, 0 to 3 parts of essence and 1.0 to 40 parts of softened water.
Owner:上海开米科技有限公司

Aqueous acrylic modified epoxy ester primer-topcoat integrated anticorrosive baking finish

The invention discloses aqueous acrylic modified epoxy ester primer-topcoat integrated anticorrosive baking finish. The baking finish consists of the following components in part by weight: 45 to 65 parts of aqueous acrylic modified epoxy ester resin, 2 to 20 parts of amino resin, 5 to 35 parts of pigment, 0 to 15 parts of filler, 1 to 3 parts of water dispersible dryer, 0.1 to 0.55 part of pH regulator, 5 to 15 parts of softened water, 0.2 to 0.4 part of dispersant, 0.3 to 0.5 part of wetting agent, 0.15 to 0.25 part of flatting agent, 0.3 to 0.5 part of antifoaming agent, and 0.2 to 0.3 part of preservative and mildew preventive. Without organic solvent, the baking finish is safe, energy-saving and free from pollution; the pencil hardness reaches 2H, the coating performance is stable, the film-coating mechanical strength is high, the positive and negative impact resistance can reach 5Kg.cm, and the flexibility can reach 1mm; the baking finish can integrate antirust and anticorrosive functions, can be used as primer or topcoat, reduces the construction process, is simple and quick to operate, can be sprayed or dip-coated, and can be quickly cured; a coated film does not become yellow; and the baking finish meets the development direction of aqueous anticorrosive paint.
Owner:HUNAN XIANGJIANG PAINT GRP

Method for recovery and utilization of waste heat from low temperature flue gas

The invention discloses a method for recovering and utilizing waste heat from low-temperature flue gas. An air-water heat exchanger (4) is connected in series or in parallel in the flue at the rear of the induced draft fan or booster fan (3) of the existing boiler or kiln (1). The inlet port of the hot side of the air-water heat exchanger is connected with the induced draft fan or booster fan (3), the outlet port of the hot side is connected with the desulfurization absorption tower (8) or the chimney (9), and the inlet port of the cold side is circulated with the heat user The outlet pipe or condensate pipe of the water or boiler softened water system is connected, the cold side outlet is connected with the hot user circulating water supply or the boiler feed water pump, and a waterway is connected between the hot side outlet pipe and the cold side inlet pipe of the air-water heat exchanger A bypass pipe, and a waterway bypass regulating valve (5) is arranged on the pipe; a flue gas bypass pipe between the induced draft fan or booster fan and the desulfurization absorption tower (8), and a flue gas bypass pipe A flue bypass regulating valve (6) is arranged on it. By connecting a gas-water heat exchanger in series or in parallel in the flue behind the induced draft fan of the boiler or kiln, the purpose of saving heat energy can be achieved.
Owner:LUOYANG BLUE SEA INDAL

Seawater desalting method

The invention belongs to the technical field of desalting of seawater, and relates to a seawater desalting method. The seawater desalting method comprises the following steps of: charging filtering water which is obtained by the pretreatment of seawater into a heat exchanger of a heat discharge section of a seawater desalting system for condensing the steam and recovering the heat energy of the heat discharge section to obtain the heat-exchanged warm seawater with higher temperature; transporting the warm seawater into an ultrafiltration device by a low-pressure pump, transporting the ultrafiltration produced water into a nanofiltration device by a high-pressure device, selectively removing the scaled ions in seawater to obtain nanofiltration softened water, and inputting into a reverse osmosis device through the high-pressure pump to obtain reverse osmosis produced water and reverse osmosis concentrated water; recovering the energy of the reverse osmosis concentrated water to be directly taken as the charged water of a heat recovering section of an MED (multi effect distillation) device or an MSF (multi stage flash) device; mixing the desalting produced water and the reverse osmosis produced water through the MED device or the MSF device to be taken as drinking water; and recovering the energy of nanofiltration concentrated water, and mixing with the concentrated water to be discharged or comprehensively utilized. The method is simple in technology, low in energy consumption, high in desalting efficiency, good in effect, simple in device structure, reliable in principle, stable in production process, and environment-friendly.
Owner:OCEAN UNIV OF CHINA

Preparation method of aroma rapeseed oil

The invention discloses a preparation method of aroma rapeseed oil, wherein the preparation method comprises the following main procedures: selecting rapeseeds, removing impurities, and removing macadam and clods, wherein the impurity content is smaller than 0.1% and the rapeseed content in the screen underflow is smaller than 0.5% after the screening procedure; frying the rapeseeds at 140-145 DEG C; squeezing the rapeseeds through a squeezer and controlling the thickness of an oil cake to be smaller than 1.5mm to obtain crude oil; primarily deslagging the squeezed crude oil through an oil clarifying box, and pumping the crude oil in a blade filter to be filtered, wherein the insoluble impurity in the filtered crude oil is smaller than 0.2%; obtaining clean crude oil, controlling the operation temperature at 65-70 DEG C and controlling the water temperature at 70-75 DEG C to perform hydration degumming; washing the clean crude oil twice by virtue of softened water, drying and dewatering at vapor pressure of 4-5 Mpa; stirring the clean crude oil at a rotating speed of 30 r/min (revolutions per minute), and cooling until the oil temperature is lower than 80 DEG C; and filtering the clean crude oil in a frame filter to obtain the aroma rapeseed oil. The prepared rapeseed oil generates full-bodied fragrance, and the nutrition ingredients and physiological active ingredients in the rapeseed oil are kept to the maximum.
Owner:YUNNAN ZHENWEI GREASE

Cut/ground silicon wafer surface cleaning method

InactiveCN102412172ASolving and overcoming easy-to-produceAddress and overcome reactivitySemiconductor/solid-state device manufacturingCleaning using liquidsSurface cleaningSoftened water
The invention discloses a cut/ground silicon wafer surface cleaning method. A silicon wafer and a silicon wafer carrier are sequentially immersed into the following stations and cleaned in corresponding processes: ultrasonic overflow rinsing in a first station cleaning tank with softened water and bubbles and the like. The cut/ground silicon wafer surface cleaning method overcomes the problem of easy acid-alkali neutralization reaction, so that the PH value and concentration of the alkaline cleaner of a third station and a fourth station can be kept constant, and thereby the dirt-removing capability of the alkaline cleaner can be persistently effective. The cut/ground silicon wafers cleaned by the method have high surface cleanliness, good repeatability and a consistent color; the oxidation phenomena of mottling, bluing and blacking are prevented, and the acceptance rate of the cleaned silicon wafers is high; meanwhile, the cleaner does not need to be added in the effective period of cleaning capacity specified by the process, the cut/ground silicon wafer surface cleaning method is easy to operate, however, the effective service period of the cleaner is doubled, and the cleaning cost is greatly reduced; and the cleaning quality and the economic benefit are remarkably increased.
Owner:沈利军

Production technology of double-faced cotton fabric

The invention relates to a production technology of a double-faced cotton fabric. The production technology comprises the following steps: 1. drying the dyed or whitened double-faced cotton fabric to prepare grey cloth for standby; 2. mixing 10wt% of adhesive WSF, 3wt% of water and oil repellent AFF300 %, 1.76wt% of thickener FN and 85.24wt% of softened water evenly to prepare printing paste; 3. coating the printing paste on one side of the grey cloth, sending to a printing machine to perform coating layer printing treatment, sending to a dryer for drying; 4. sending the dried grey cloth to a tentering and forming machine for curing treatment; and 5. adding 30g of hydrophilc agent RWS per 1L of water in the groove of the stentering forming machine, after the curing treatment, and sending the grey cloth to the tentering and forming machine again to perform tentering and forming and hydrophilic finishing treatments. The production technology of the invention can be used to ensure that the front of the fabric has interface structure with complimentary geometry and shows good water repellent and oil repellent properties; and the back of the fabric has hydrophilic and moisture transmission performances under the premise of not affecting the properties of the front of the fabric.
Owner:QINGDAO JIFA GROUP
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