869 results about "Water softening" patented technology

A washing system for cleaning within a washing zone comprising at least one inlet capable of fluid communication with a feed water; at least one treatment zone in fluid communication with the at least one inlet, said at least one treatment zone comprising a water softening zone, an electrolysis zone, a dosing zone and combinations thereof; and at least one outlet in fluid communication the at least treatment zone capable of being in fluid communication with a washing zone.

The invention belongs to the field of metal machining fluids, and discloses a heavy-load metal machining total synthesis cutting fluid as well as a preparation method and an application thereof. The total synthesis cutting fluid comprises the following components in percentage by weight: 20%-30% of mixed alcohol amine, 6%-9% of anti-rust agents, 4%-6% of special amine, 6%-10% of lubricating agents, 15%-25% of extreme pressure agents, 6%-10% of cosolvents, 1%-2% of water-softening agents, 1%-3% of corrosion inhibitors and the balance of water. The total synthesis cutting fluid disclosed by the invention has excellent lubricating extreme pressure property, can meet the requirement for heavy-load machining, namely reaming, drilling, tapping, threading, broaching, thread machining and the like, of difficult-to-machine materials, namely high-temperature alloy steel, a titanium alloy and the like; a product is green and environment-friendly without containing boron, sodium nitrite, secondary amine, chlorine, phenol, formaldehyde, heavy metals and the like; in addition, the total synthesis cutting fluid disclosed by the invention has excellent anti-rust property, biological stability and machining property, and can enhance the surface quality of a machined part, prolong the service life of a cutter and reduce the rejection rate, thus improving the production efficiency.

The invention discloses a method for recycling billet residual heat and a device thereof; water is treated by softening; superheated water is obtained through a steel making cooling system, then the superheated water and discharged billet exchange heat to obtain water vapour; the method comprises the following specific steps: A. superheated water obtained by softening tap water or cooling water is stored in a water storage tank; B. the superheated water in the water storage tank referred in the step A is conveyed to steel tubes of a heat exchange device by a high-pressure water pump through a pipeline; billet is pushed into the heat exchange device surrounded by the steel tubes; heat energy of the billet is dispersed out in order that water in the heat exchange device becomes high-temperature and high-pressure water vapour; C. the high-temperature and high-pressure water vapour passes through a superheater and impels a steam turbine to drive a dynamo to generate power; D. the water vapour after being utilized by the steam turbine is condensed into condensed water; the condensed water enters a water treating system by the pipeline, is treated by the water treating system and conveyed to a cooling water softening system of the step A by the pipeline; through the method, the device recycles cooling water, can dramatically recycle the billet residual heat in high efficiency and is stable and reliable.

A high-efficiency water softening process is disclosed. The softening-process is particularly effective for the treatment of water process streams containing a broad array of contaminants, such as Ca, Mg, Ba, Sr, iron, aluminum, manganese, copper, zinc, silica, TOC, oil, and grease. The softening-process includes steps of: (a) adding carbonate ions and hydroxide ions to said water process stream until the process stream pH is raised to between at or about 10.5 and at or about 14.0; (b) optionally adding a coagulation aid so as to facilitate the creation of separated solids comprising a substantial portion of the contaminants; (c) optionally adding a polyelectrolyte so as to facilitate the creation of separated solids comprising a substantial portion of the contaminants; and (d) phase-separating the separated solids so as to remove the contaminants and produce a highly purified water process stream.

A washing system for use in cleaning or washing a soiled substrate or substrates, the system comprising: a. a washing zone for contacting and washing the soiled substrate with wash liquor; b. a feed supply for providing hot or cold feed water to the washing zone; c. a wash liquor cleanup and recycle zone in fluid communication with the washing zone d. an effluent storage and/or discharge zone; and optionally one or more of e. a product dispensing zone; f. means for sonically or ultrasonically treating the soiled substrate in the washing zone or in a washing pre-treatment zone; g. an electrolysis zone for electrolysing the feed water or wash liquor; h. a wash liquor disinfection zone; and i. a feed water softening zone;

The wash liquor cleanup and recycle zone preferably comprises an ultrafiltration or microfiltration device having a cut-off in the range from about 1000 Daltons to about 1 μm, preferably from about 0.05 μm to about 0.5 μm, a lumen size of from about 1 to about 10 mm, preferably from about 2 to about 6 mm, more preferably from about 3 to about 5 mm, and a clean water flux of at least about 1000 L/m².h.100 kp (RO water at 25° C.), preferably at least about 10,000 L/m².h.100 kp.

The invention discloses a multifunctional water softening valve. The valve comprises a valve body, a cover, an ejector, a fixed valve plate and a moving valve plate, wherein the moving valve plate is connected with a valve rod; the water softening valve is provided with a water inlet, a water outlet, a drain outlet, a filter element outside connector, a filter element inside connector and a salt absorption hole; and an ejector outlet and an ejector inlet flow passage are also arranged in the water softening valve. The valve is characterized in that five through holes are arranged on the fixed valve plate and are respectively communicated with the water outlet, the ejector outlet, the ejector inlet, the filter element outside connector and the filter element inside connector in the valve body; the moving valve plate is provided with a water inlet channel, a communication blind hole and a sewage draining channel; the water inlet channel is communicated with the water inlet; the fixed valve plate and the moving valve plate are sealed by end faces; and different flow passages are formed by rotating the moving valve plate. The valve has the beneficial effects of concise flow passage, practicability, high flow, water and salt conservation and environment friendliness.

The invention relates to a treating method for desalting high-salt-content waste water in an oil and gas field during exploration and transmission of oil and natural gas. The method comprises the following steps of: a, adding a hard water softener and a flocculant to waste water, wherein based on each stere of waste water, the addition amounts of the components are as follows: 0.5-0.9kg of hydroxide, 0.5-0.9kg of carbonate and 1.5-3.0kg of the flocculant; b, filtering the waste water by utilizing an ultra-filtration membrane, and filtering by sequentially utilizing a quartz sand filter and a fine filter; and c, carrying out a reverse osmosis desalination treatment on filtered water. According to the treating method for desalting the high-salt-content waste water in the oil and gas field, disclosed by the invention, through various forms and multi-level treatments, organic matters and soluble salt-type matters in water bodies of the oil and gas filed are effectively removed, and thus the chloride concentration of the high-salt-content waste water of the oil and gas field is less than 250mg/L, and other indexes of the high-salt-content waste water can meet first-level standard requirements of the Sewage Comprehensive Drainage Standard (GB8978-1996).

A washing system for use in cleaning or washing a substrate comprising: a washing zone capable of containing a substrate; and a water-softening zone.

A wood protecting agent for flame-retarding and anticorrosion purposes is prepared from dicyanobiammonium phosphate, boric acid, quaternary ammonium salt, alkylphenolether, low-grade alcohol cosolvent, silicone sol, silane coupling agent, water-softening agent and water.

The dual water supply system for household includes a soft water module with KDF filter connected to the raw water pipeline, a water softening resin device with salt box and resin jar, an adsorbing module with active carbon with water outlet connected to toilet water pipeline, an ultrafilter module, an RO module with pressurizing water pump, a bath water inlet pipeline, and a pressure container connected to the pure water outlet of the RO module. The dual water supply system makes the drinking water and the living use water flow separately, and has reverse resin regeneration, active carbon surface flushing and ultrafiltering membrane cross flow filtering to complete the timely system washing for eliminating pollutant and prolonging service life.

The invention relates to a preparation method of a phospholipid biomimic membrane containing aquaporins. A composite membrane the surface of which is electronegative is prepared by layer-by-layer assembly, and a phospholipid vesicle solution with electropositivity, which is wrapped with aquaporins, spreads on a composite membrane by an electrostatic bonding effect so as to form a phospholipid dual-layer membrane. According to the invention, the phospholipid biomimic membrane containing aquaporins is prepared by layer-by-layer assembly, after aquaporins is added, the flux of the membrane is improved by 4-5 times compared with the original membrane, and is about 16-28L/m2h (the water flux of the original membrane is 3-5L/m2h); the reject rate of monovalence Na<+1> is improved by more than 40%; the reject rate of bivalence Mg<+2> is improved by more than 65%; and the preparation method of the phospholipid biomimic membrane containing aquaporins can be applied to different fields of water softening, wastewater treatment and the like, and has a wide application prospect.

The invention relates to a method for preparing a polyvinylidene fluoride composite cellulose acetate forward osmosis membrane. The conventional product has a serious inside concentration polarization phenomenon and low actual flux. The method comprises the following steps of: preparing a polyvinylidene fluoride cast membrane solution from polyvinylidene fluoride and additive; preparing a cellulose acetate cast membrane solution from cellulose acetate, cellulose triacetate and molecular sieve; and uniformly coating the polyvinylidene fluoride cast membrane solution on a non-woven fabric to obtain a hydrophilic polyvinylidene fluoride micro-filtration base membrane, drying or naturally drying in air to form a dry hydrophilic polyvinylidene fluoride membrane, uniformly coating the cellulose acetate cast membrane solution on the dry hydrophilic polyvinylidene fluoride membrane, and thus obtaining the composite forward osmosis membrane. The forward osmosis membrane prepared by the method has high mechanical strength and solvent tolerance, high water flux and high salt intercepting rate, and can be applied in the fields of desalting of seawater and brine, softening of hard water, first-aid water bags and the like.

The present invention relates to wood fire retardant, and is especially one kind of multiple effect wood fire retardant and its preparation process. The multiple effect wood fire retardant is prepared with boric acid, guanyl urea phosphate, ammonium dihydrogen phosphate, water softening agent and anti-mildew agent, and through mixing and drying. Once using the multiple effect wood fire retardant in treating timber can reach the protecting effects of preventing fire, inhibiting smoke, preventing corrosion, preventing moth, etc.

A method of controlling a dishwasher having a water softening function performed by a water softener is disclosed. The method includes the steps of loading in the dishwasher an item to be washed, supplying washing water through the water softener, washing the loaded item using the supplied washing water, drying the washed item, and regenerating, during said drying step, the water softening function.

The invention discloses a water sink type dish washing machine. The water sink type dish washing machine comprises a breather and a water softener, wherein a water inlet cavity is defined in the breather and comprises a water inlet channel and a water return channel, the water return channel comprises a main loop and a water storage cavity which are communicated, a water inlet is formed in one endof the water inlet channel, the other end of the water inlet channel is communicated with the water return channel, the main loop is provided with a main water channel port, and the water storage cavity is provided with a reclaimed water channel port; the water softener comprises a body and a regeneration control part, a water softening cavity and a softening reclamation cavity which are communicated with each other are defined in the body, the reclamation control part is used for controlling communication and cutoff of the water softening cavity and the softening reclamation cavity, a soft water inlet and a soft water outlet which are communicated with the two sides of the water softening cavity respectively are formed in the body, a reclaimed water inlet communicated with the softeningreclamation cavity is formed in the body, the soft water inlet is connected with the main water channel port, and the reclaimed water inlet is connected with the reclaimed water channel port. According to the water sink type dish washing machine, water inflow of the water softening water channel of the water softener is completed by the breather, and the pipeline connection cost is low.

A colorant composition containing a hydrophobic latex polymer component to impart resistance to water-softening and -staining in a paint film made from a latex paint formulated with the colorant composition, as well as the paint and paint film, and methods for making the foregoing.

The invention discloses a high-throughput polyamide nanofiltration composite membrane and a preparation method thereof, which belong to the field of polymeric membrane materials. The composite membrane is prepared by the interfacial polymerization reaction between 5-(N-sulfonamido)isophthaloyl dichloride or a mixture of 5-(N-sulfonamido)isophthaloyl dichloride and 1,3,5-trimesoyl chloride and piperazine monomer, and can be widely used in a water softening process for removing bivalent cations such as Ca<2+> and Mg<2+>. The high-throughput polyamide nanofiltration composite membrane is structurally provided with an ultrathin (10nm) release layer, surface charge are low in electronegativity, the membrane surface property is smooth and hydrophilic, high throughput is shown in terms of properties, the high-throughput polyamide nanofiltration composite membrane has an excellent trapping effect on bivalent and polyvalent cations and good pollution resistance, and the high-throughput polyamide nanofiltration composite membrane can be widely applied in high-throughput domestic water purifiers, sea water desalination, brackish water pretreatment, removal of COD (chemical oxygen demand) suchas dye molecules and phenol molecules in wastewater, separation of dye/salt and material separation and concentration processes in pharmaceutical and food industries.

The invention relates to a water-conducting household appliance, comprising at least one water softening device, in which the untreated water can be guided through an ion exchanger and said ion exchanger can be regenerated by a regeneration salt brine. According to the invention, said appliance comprises a display (26) for displaying at least one remaining range value determined by the regeneration salt supply. The invention also relates to a method for softening water for a water-conducting household appliance.

The invention discloses a nanofiltration membrane with a brush-shaped zwitterionic polymer modified layer and a preparation method thereof. The preparation method of the nanofiltration membrane with the brush-shaped zwitterionic polymer modified layer comprises the following steps: soaking a polysulfone ultrafiltration membrane support membrane in a piperazine solution to form an aqueous phase liquid layer; contacting the aqueous phase liquid layer with an organic solution containing trimesoyl chloride, and forming a polyimide layer on the surface of a polysulfone ultrafiltration support layerby virtue of interface polymerization reaction to obtain an initial nanofiltration membrane; soaking a polysulfone ultrafiltration membrane of the polyimide layer in a solution containing a tertiaryamine monomer and an azo initiator, and grafting and modifying the surface to obtain a tertiary amine-based nanofiltration membrane containing tertiary amine groups; and cleaning with deionized water,quaternizing with a solution containing sultone or alkyl sulfonate monomers, and cleaning to obtain the nanofiltration membrane with the brush-shaped zwitterionic polymer modified layer. The novel brush-shaped zwitterion nanofiltration membrane with high flux and high interception prepared by the invention is suitable for the fields of water softening, wastewater treatment and the like, and has good application prospect.

The invention discloses a device and a method for softening hard water by using carbon dioxide in flue gas. The device comprises a water inlet system, a pH adjusting system, a gas inlet system, a reaction tower system and a solid-liquid separation system. According to the method, firstly, hardness ion-containing water enters the pH adjusting system and the pH value is adjusted to about 10 by using an alkaline adding system and a stirring system; then, the water enters the top of a reaction tower; the flue gas enters the bottom of the reaction tower through the gas inlet system; the flue gas and the hard water are in countercurrent contact, so that CO2 in the flue gas is dissolved in water under an alkaline condition and is converted into CO3<2-> which reacts with Ca<2+> so as to generate CaCO3 precipitate, and Mg<2+> reacts with OH<-> to generate Mg(OH)2 precipitate; the adsorbed and purified flue gas is discharged from a gas outlet; and the reacted mixed liquid enters the solid-liquid separation system, and the softened water is obtained after the solid-liquid separation is carried out. The device and the method have the advantages that CO2 in the flue gas is used for softening the hard water, the shortcomings of high investment, high operating cost and high mud yield in a conventional hard water softening treatment technology are overcome, the flue gas is purified while the hard water is softened, and the good effect of treating wastes with wastes is achieved.

Systems and methods for filtering and softening water in combination are disclosed. The systems may include a water filtering system, having a water filter and a water softening system connected to the water filtering system. In addition, a controller may be connected to the water filtering system and the water softening system via wired or wireless connections. The methods may include filtering incoming water, monitoring the hardness of the incoming water, and softening the incoming water when the water hardness is above a maximum level. Furthermore, the performance of the water filtering system may be altered in response to the performance of the water softening system. In addition, the performance of the water softening system may be altered in response to the performance of the water filtering system.