42results about How to "Reduce water hardness" patented technology

A system and process for treating water are described. Water may be purified by passing feed water through an electrochemical deionization device. The water may be suitable for cooking, washing, and beverage production.

An alkaline detergent composition is provided including a source of alkalinity and an effective soil removing amount of a nonionic surfactant blend. The nonionic surfactant blend includes a monionic surfactant having a hydrophobic and an (EO) group and a nonionic silicone surfactant. The detergent composition provides for the removal of waxy-fatty soil.

The present invention provides a water softening device for application in a household appliance comprising a flow-through capacitor for the production of wash amplified water (WAW) from tap water, having less than 5° FH, being suitable for use in said appliance when the device is in operation; the configuration of the device is such that the capacitor can be regenerated, whereby no added substances are used. Said washing machine being suitable for use with low environmental impact detergent products.

Parallel desalting (PDS) includes a hybrid membrane softening (MS) system for de-mineralizing water for residential and commercial use. Parallel desalting produces "soft" water without the use of salt, or any other liquid chemical reagent normally used to carry out pH adjustment in industrial membrane and precipitation processes. The PDS process balances the operation of a RO (potable water) membrane unit with the operation of a tubular MF (wastewater) membrane unit, thereby providing a highly efficient and regenerative water treatment technology: (1) The optimum operation for the PDS system transforms roughly 90 percent of a potable, slightly brackish water supply into <50 mg/L TDS water with <1-grain (10-15 mg/L as calcium carbonate)-water hardness; and (2) The operation of the PDS system produces, in salinity terms, in a 100 percent reusable effluent for downstream recycling. Virtual prototype results suggest that with Colorado River Aqueduct source water (570-620 mg/L TDS and 16-grain water hardness), parallel desalting can produce an effluent with a TDS 40-70 mg/L lower than the originating supply (excluding TDS contributed directly by the particular type of use of the soft water).

A system is used for treating contaminated water, that may include some amount of polyacrylamides, emulsified hydrocarbons, and sequestered divalent cations. The system includes at least one pre-treatment tank for initial processing of the contaminated water. Thereafter, the water may be fed to at least one chemical treatment tank fluidically connected to the pre-treatment tank. This treatment tank includes a chemical injection system connected to an interior thereof for introducing a variety break operations, coagulant addition operations, and/or flocculent addition operations. At least one clarifier is fluidically connected to the at least one chemical treatment tank, and includes a mechanical contaminant removal system. A filter skid is fluidically connected to the at least one clarifier, and includes a plurality of filter cartridges.

A process for treating water to reduce silica based compound scaling in steam generation equipment is provided, including the step of subjecting water to a cation removal process to reduce the di- and trivalent cation concentration within the water to, most preferably, less than about 20 ppb prior to introducing the water into the steam generation equipment. This process eliminates the need for a lime softening stage and savings in capital and operating costs are realized.

The invention discloses a composite scale inhibitor for high-hardness water. The composite scale inhibitor for the high-hardness water is prepared by the following components: sodium carbonate, sodium hydroxide, sodium humate, lignosulfonate, sodium silicate and sodium aluminate. By the scale inhibitor, scaled substances can be changed into loose and high-mobility water slag and is settled along with the flocculation process, so the scale inhibition aim is fulfilled; and adsorption slime is changed on the aspect of properties, is loosened and softened and can be taken away by circulating water, so the pipeline and the spray head of the circulating water are difficult to block. The scale inhibitor can remove impurities and scaled substances from the circulating water in the settling process; the concentration multiple cannot be controlled during circulation; pollution discharge is avoided; and water resource is saved. The composite hardness-reducing inhibitor of the scale inhibitor is low in the price of each component, so the scale inhibitor is lower in cost compared with the common scale inhibitor in the current market, and the operation cost of the circulating water is reduced. The scale inhibitor can inhibit scale, can also effectively reduce the hardness of the water and control the alkalinity of the water, and is applicable to scale inhibition and turbid reduction of sewage circulating systems for smoke dust removal and smoke washing.

The invention relates to an ntiscaling boiler water treatment agent which comprises the following components in percentage by weight: 20-30 wt% of polyamine polyether methylene phosphonate, 20-30 wt% of copolymer of crylic acid/methyl acrylate, 3-18 wt% of HEDP, 10-15 wt% of potassium sulfite, 2-8 wt% of ethylene diamine tetraacetic acid, 10-15 wt% of trisodium phosphate, 15-25 wt% of sodium carbonate and 3-7 wt% of sodium hydroxide. By using the boiler water treatment agent provided by the invention, the hardness of boiler water can be lowered, and the formation of water scale is reduced and inhibited. After the boiler water treatment agent is used, the oxygen content of boiler water is within the national standard range. The boiler water treatment agent provided by the invention also has the actions of residue and hard scale elimination and scale prevention.

Water purification systems utilizing oxidation. By passing water through a chamber of air, the impurities within the water, such as iron, manganese, and/or hydrogen sulfide gas, may be oxidized. The oxidized constituents in the water may then precipitate out and be removed by filter media. Thus, by utilizing oxidation, the impurities most commonly found in a consumer's water are readily removed. Additionally, the water purification systems of the present invention may also elevate the pH, i.e., reduce the hydronium ion concentration, of the water when the water is acidic. By raising the pH of the water, the oxidation of impurities, such as iron and manganese, is more complete and also occurs at a faster rate. Additionally, the corrosivity of the water is also reduced when the pH is elevated.

The present invention involves a carbon nanofiber composite water purification material. The carbon nanofiber composite water purification material is prepared by the following components in parts by weight: 70-80 parts of activated carbon cellulose, 6-10 parts of lemon powder, 6-10 parts of Jew's ear powder, and 1-2 parts of graphene oxide. The present invention also involves a filter cartridge. The filter cartridge includes a filter cartridge body comprising a plastic skeleton and a flat membrane which coats an outer surface of the plastic skeleton; the plastic skeleton is provided with a plurality of water passage holes; the carbon nanofiber composite water purification material is provided on an outer surface of the flat membrane. The carbon nanofiber composite waste purification material of the present invention has high nano-porosity, strong adsorption abilities, and a long lifetime.

The invention discloses a control method of an electrical appliance carrying out sterilization by using metal ions, which belongs to the field of electrical appliances. The problem that the concentration of metal ions cannot be accurately controlled in the prior art is solved. The technical scheme for solving the problem is as follows: detection is carried out multiple times by using a current detection circuit, normal electrolysis currents are accumulated, and the concentration of metal ions is fed back by using the magnitude of current obtained, thus realizing accurate control on the concentration of metal ions. The control method is mainly used in electrical appliances carrying out sterilization by using metal ions. In addition, the invention provides an electrical appliance which realizes sterilization by using the control method.

The invention provides a silicon removal agent and a preparation method and application thereof, and belongs to the technical field of silicon-containing sewage treatment. The silicon removal agent comprises the following components in parts by weight: 73-77 parts of polyaluminum chloride, 10-14 parts of sodium metaaluminate, 4-8 parts of polyaluminum sulfate, 3-7 parts of polyferric sulfate and 1-3 parts of activated aluminum oxide. After the silicon-containing sewage is treated by adopting the silicon removal agent, the soluble silicon in the sewage is reduced to a certain degree, the recycling of the sewage is not influenced, near-zero emission is achieved, and the silicon removal agent has multiple effects of silicon removal, coagulation, turbidity removal and the like. The silicon removal agent is high in purity, less in impurity, less in dosage, low in sludge amount, high in silicon removal efficiency, free from influence of water quality change of sewage, very high in operationstability, low in operation cost and safe and convenient to operate.

A formula and method for reducing water hardness includes the combination of a sulfate donor, salt of phosphoric acid, and salt of sulfamic acid. Preferred formulas include effective amounts of sodium bisulfate, sodium hexametaphosphate, and sulfamic acid. In a swimming pool, preferred formulas are effective in reducing calcium to under 200 ppm within a two day period. In addition, preferred formulas provide ongoing effectiveness in suppressing scaling, staining and cloudy water.

The invention discloses an intelligent agricultural greenhouse monitoring system base on 5G. The intelligent agricultural greenhouse monitoring system base on 5G structurally comprises a greenhouse frame, a rainwater collecting device, a greenhouse film, a water pipe, a 5G communication module, a spraying head, a camera and a monitoring module. According to the intelligent agricultural greenhouse monitoring system base on 5G, the system is used after improvement, particulate matter in rainwater is blocked through a primary filter screen, water quality hardness of the rainwater is reduced through a resin filter screen, most microorganisms in the rainwater are filtered through cooperation of a filter membrane and a cotton layer, treated rainwater is stably guided into a water storage tank through a flow guide plate, and the water in the water storage tank is output through a water guide pipe and a water pipe; a worker can turn on a mobile phone to operate and open the spraying head when tap water stops running, collected and treated rainwater is sprayed to crops through the spraying head, the crops are stably irrigated, the crops can stably grow, and the yield of the crops is increased.

The invention discloses a coolant for aluminum alloy processing. The coolant is prepared from components in parts by mass as follows: 20-30 parts of stearate, 5-10 parts of low-silicon acidized triethanolamine, 4-8 parts of sodium dodecyl sulfate, 5-8 parts of organic silicone oil, 3-5 parts of dodecenylsuccinic acid, 8-15 parts of a sodium hydroxide solution with the concentration being 55%, 0.1-0.2 parts of diethyl acetate tetrahydrate and 40-50 parts of wheat grass juice. The selected materials are excellent, the coolant is formed through high-temperature and high-pressure composition with the scientific processing method and is high in antibacterial capacity, good in antirust effect and free of layering, the problems of cutting fluids corrode machine tools, deteriorate and stink in the past are solved, few precipitates exist during usage, the product is clean and qualified, nitrite, phosphorus and sulfur compounds are eliminated in the product formula, the wheat grass juice is added, and the product is environment-friendly, economical, low in cost and non-toxic, causes no harmful effects on skin, can significantly improve the finish of processed surfaces and provide good antirust protection for parts and is applicable to cutting of black metals, aluminum and aluminum alloys.

The invention relates to a multifunctional sink dishwasher. The dishwasher comprises a soft water filtering system used for softening and filtering water, a spraying system used for spraying a cleaning target, an ultrasonic cleaning system used for fine cleaning and a main control system used for controlling all the systems to work, wherein the soft water filtering system comprises a water feeding and discharging device and a soft water filter; the spraying system comprises a spraying arm assembly arranged in the inner cavity of a water tank, and the spraying arm assembly is communicated with the inner cavity of the water tank; and raw water sequentially passes through a water feeding and discharging device and the soft water filter from a raw water supply terminal and is finally sprayed into the inner cavity of the water tank through the spraying arm assembly. The ultrasonic cleaning system comprises an ultrasonic generator, and the ultrasonic generator is arranged on the water tank and communicates with an inner cavity of the water tank; and the main control system comprises a main control module and an ultrasonic control module, and the ultrasonic control module is connected with the ultrasonic generator. The dishwasher can effectively soften and filter water, improve the cleaning effect, finely clean tableware and food materials and completely eradicate residues.

The invention discloses a zero-emission treatment method and system for the landfill leachate. The advantages of anaerobism, TUF softening, DTNF, deamination membranes, AOP/BAC and DTRO processes areefficiently connected in series, targeted staged treatment is achieved according to the characteristic that the landfill leachate is high in concentration and difficult to treat, and the final effluent treated by the process is good in quality and meets the water supplementing standard of an open type circulating cooling water system: The reuse of urban recycling water-Water quality standard for industrial uses (GB/T 19923-2005).

The invention discloses a by-pass flow and online scale absorption instrument integrated device. The device comprises a bracket and a filtering main pipe arranged on the bracket, wherein a water inlet electromagnetic valve is further arranged below the filtering main pipe; the water inlet electromagnetic valve is connected with a first pipeline extending into the filtering main pipe; the water inlet electromagnetic valve is connected with an electric three-way ball valve through a second pipeline; a filtering by-pass flow pipe communicated with the filtering main pipe is arranged at the side part of one end of the filtering main pipe; the filtering by-pass flow pipe is connected with the electric three-way ball valve through a blow-off pipe; an online scale absorption instrument is further detachably mounted at the top of one end of the filtering pipe; the online scale absorption instrument comprises an inserting part and a pipe plug part which are fixedly connected with each other; the inserting part comprises an inner mesh arranged below the pipe plug part and an outer mesh arranged below the pipe plug part and surrounding the inner mesh; both the inner mesh and the outer mesh are electrodes and are arranged with opposite electric properties, so as to produce an electric field. The device ensures that Mg2+ ion is absorbed onto the online scale absorption instrument through the electric field effect, reduces the system water hardness, and achieves the effect of scale prevention; the online scale absorption instrument is convenient to dismount, and water scale can be timely dismounted and cleaned.

The present invention is directed to a water-hardness reducing apparatus (100) for reducing the formation of chalk deposits in a water supply (101) adapted to be coupled with a beverage generating apparatus (103), comprising, a cation exchange element (107), which is in fluidic connection with a water source (105) of the water supply (101) for supplying water, wherein the cation exchange element (107) is adapted to remove cations from the supplied water to obtain cation reduced water, a first pH sensor (109), which is positioned downstream of the cation exchange element (107), wherein the first pH sensor (109) is adapted to assess a first pH value of the cation reduced water, a lye supplying element (113), which is positioned downstream of the cation exchange element (107), wherein the lye supplying element (113) is adapted to supply lye to the cation reduced water, and a controller (111), which is connected to the first pH sensor (109) and to the lye supplying element (113), wherein the controller (111) is configured to activate the lye supplying element (113) for supplying lye to the cation reduced water, depending on the assessed first pH value of the cation reduced water.