157results about "Ion exchange regulation/control" patented technology

A method of monitoring the daily operating performance parameters for water treatment processes through the collection of localized data. The data is manipulated to generate preconfigured performance, maintenance, and quality assurance reports and further provide automatic submission of data as required for regulatory review of certain water treatment systems such as potable water treatment. The data is collected from sensors located at an equipment site and transferred to a remote computer located by use of the Internet, further all data received and used for generation of reports is also accessible by Internet connection and be delivered directly to the regulatory agency without additional process.

A novel deionization filter for removing ions from a coolant in an electric fuel cell vehicle cooling system is disclosed. The deionization filter includes a filter housing having a coolant inlet port, through which the coolant enters the filter housing; and a coolant outlet port, through which the coolant exits the filter housing. An ion exchange bed having positively-charged and negatively-charged ion exchange resin beads is provided in the filter housing for removing negative and positive ions, respectively, from the coolant. At least one filter assembly is typically provided in the filter housing for filtering particles from the coolant.

A water purifying unit generates pure water by eliminating impurity ions from dielectric fluid. A corrosion-protection-ion generating unit generates corrosion protection ions, substitutes predetermined cations for impurity cations contained in the dielectric fluid, and substitutes the corrosion protection ions for impurity anions contained in the dielectric fluid. A switching unit switches a supply of the dielectric fluid between the water purifying unit and the corrosion-protection-ion generating unit. A switching control unit controls the switching unit based on a conductivity of the dielectric fluid measured by a conductivity measuring unit.

The invention discloses a mixed-bed resin in-vitro separating and conveying process intelligent monitoring control device and a mixed-bed resin in-vitro separating and conveying process intelligent monitoring control method. A computer intelligent image analysis technology is applied to mixed-bed resin in-vitro separating monitoring, so that a separated resin conveying end point is reliably judged, and a resin separating and conveying process is relatively rational. On the one hand, the volume and proportion of the mixed-bed resin can be prevented from being mixed; on the other hand, the volume and proportion of the stirred mixed-bed resin can be gradually and automatically adjusted in the resin separating and conveying process until the volume and the proportion are recovered; therefore, the operating effect of a mixing bed can be well maintained, and the automation degree of mixed-bed resin in-vitro separating can be improved; and the working intensity of a worker is reduced.

The invention discloses an ion exchange treatment technology of wastewater containing hexavalent chromium, the ion exchange treatment technology combines the regulation of pH value of the wastewater, the absorption, the regeneration, the maintenance and the recovery of Cr<6+> ions, thereby realizing the automatic treatment of the Cr<6+> ions in the wastewater containing the chromium; the technology of the invention has high degree of automation and good treatment effect and can be applied in the large-scale water treatment; chromium removing columns are designed to three columns or multiple columns, intermediate tanks which can regulate the pH value are arranged among various ion exchange columns, when two columns or multiple columns are connected in series for working, the pH value can be regulated during the intermediate process, thereby ensuring the wastewater treatment effect to be better and being capable of overcoming the problem that the pH is changed due to the change of the concentration of the ions during the conventional ion exchange process, thereby causing the decrease of the absorption ability of the ions by the resin; the outlet water quality can stably maintain the Cr<6+> to be less than 0.5mg / L; ion exchange resin can be effectively maintained and be stably worked for a long time; regenerated liquid can be recovered, thereby saving resources.

A material for purification of a semiconductor polishing slurry that without changing of pH value, is capable of efficiently purifying a polishing slurry to thereby not only prevent metal contamination of a polished object as effectively as possible but also achieve recycling of a polishing slurry without any problem; a relevant module for purification of a semiconductor polishing slurry; and a process for purifying a semiconductor polishing slurry with the use thereof. In particular, a material for purification of a semiconductor polishing slurry characterized in that it comprises a fibrous substrate having a functional group capable of forming a metal chelate or such a functional group together with hydroxyl fixed onto at least the surface thereof. This material for purification of a semiconductor polishing slurry is, for example, used in such a manner that it is inserted in a container fitted with polishing slurry inflow port and outflow port while ensuring passage of polishing slurry flow.

The performance of an anion exchange resin is evaluated on-line by measuring inorganic carbonic acid concentrations at the inlet and at the outlet of an ion exchange resin vessel (such as a demineralizer vessel) of an ion exchange apparatus such as a condensate water demineralization system. Moreover, an MTC (Mass Transfer Coefficient) with respect to the inorganic carbonic acid is calculated and the dynamic performance and / or degree of degradation of the anion exchange resin are evaluated. The degree of degradation of the anion exchange resin is evaluated from the MTC and the replacement timing, lifetime, and throughput capacity for the anion exchange resin are judged.

A sensor assembly for a water softening system and includes a first treatment tank having a first valve assembly, a first flow meter and a sensor probe, a second treatment tank having a second valve assembly and a second flow meter and a brine tank independently connected to each of the first treatment tank and the second treatment tank. A controller is configured for communicating with the sensor probe and the first flow meter in the first treatment tank, and the second flow meter in the second treatment tank.

The invention provides a water softening device and its regeneration controlling method capable of detecting the hardness of the supply water to be softened with the large of time and controlling regeneration timing based on the detected value. The water softening device is provided with an inlet water hardness measuring means 10 for measuring the hardness of supply water to the water softener 1, a treated water quantity measuring means 11 for measuring the flow rate of treated water after passing through the water softener 1, a salt water concentration detecting means 8 for detecting the salt water concentration at regeneration and a salt water consumption detecting means 9 for detecting the salt water consumption at regeneration. Further, a hardness overlooking detecting means 12 which measures the hardness of water which passed through the water softener 1 and detects the overlooking of hardness is provided.

A chemical distribution system having improved organic solvent fluid purity and consistency includes a vessel containing ion-exchange media positioned within a fluid flow pathway such that the organic solvent fluid passes through the ion-exchange media, thereby effecting removal of undesired impurities. Different embodiments of the invention position the vessel at varying locations within the fluid flow pathway. The chemical distribution system also preferably includes a return chemical flow pathway that recirculates purified organic solvent fluid through the ion-exchange media-containing vessel and thereby enables the system operator to conduct incremental adjustment of the solvent purity until a desired overall purity is attained.

Sampling pipes 21 and 22 are inserted, separated from outlet openings, into first and second water softeners 4 and 11. Raw water flows through first water softener 4, and raw water does not flow through second water softener 11. Once the hardness component concentration of the treatment water sampled by sampling pipe 21 reaches a specified concentration, the watercourse selection of valves 2 and 6 and valves 9 and 13 are switched, causing raw water to flow through second water softener 11. First water softener 4 is regenerated by salt water from a salt water chamber 14. The resulting water softening device prevents the leaking of hardness components, even with there is a fluctuation in the water quality of the raw water or when there is performance deterioration in the ion exchange resin.

The disclosure describes a novel method for operating a resin treatment system and a novel organic polisher. The method for operating the resin treatment system is efficient and cost effective.

A sensor assembly for a water softening system and includes a first treatment tank having a first valve assembly, a first flow meter and a sensor probe, a second treatment tank having a second valve assembly and a second flow meter and a brine tank independently connected to each of the first treatment tank and the second treatment tank. A controller is configured for communicating with the sensor probe and the first flow meter in the first treatment tank, and the second flow meter in the second treatment tank.

Methods and systems for acid regeneration of ion exchange resins are disclosed. Acid resins designed for use in a variety of cleaning application using a water source use a treated, softened, acidic water source according to the invention. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and / or eliminate the need for polymers, threshold reagents and / or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications.

A control device of a fuel cell system includes an electric conductivity comparing unit for comparing the electric conductivity of the water inside the ion exchanger which is measured by the electric conductivity measuring unit with a predetermined electric conductivity range, and an ion exchange environment determining unit for arbitrarily determining whether or not air has been mixed into an ion exchanger and whether or not the ion exchange efficiency of the ion exchanger has been degraded, based on a comparison result by the electric conductivity comparing unit.

The invention relates to a continuous ion exchange unit for organic acid production, comprising resin, at least three resin columns, feeding main pipes communicated with the upper ends of the resin columns and discharging main pipes communicated with the lower ends of the resin columns, wherein the feeding main pipes include a liquid feeding main pipe, an elution feeding main pipe and a regeneration feeding main pipe; the discharging main pipes include a liquid discharging main pipe, an elution discharging main pipe and a regeneration discharging main pipe; each resin column is respectively provided with a feeding branch pipe in one-to-one corresponding communication with the feeding main pipes and a discharging branch pipe in one-to-one corresponding communication with the discharging main pipes; and each feeding branch pipe and each discharging branch pipe are respectively provided with a control valve for cooperatively controlling all the resin columns to realize ion exchange, elution and resin regeneration in turn. The invention can reduce the usage amount of chemical agents, reduce the production cost, improve the yield of products, stabilize the quality of products, reduce the discharge of waste liquid and lighten the pressure for environment protection.

A method in a separation system comprising parallel fluid paths each comprising a separation module.According to the invention said method comprises the steps of:providing an adjustable flow restrictor in each fluid path;identifying the fluid path with highest hydraulic resistance by measuring the hydraulic resistance of each fluid path sequentially and separately while stopping the fluid flow through all other fluid paths;adjusting the hydraulic resistance of each of the parallel fluid paths to be substantially the same by adjusting the adjustable flow restrictor in each fluid path sequentially and separately while stopping the fluid flow through all other fluid paths, such that the hydraulic resistance of said fluid path is equal or higher than the resistance of the fluid path identified to have the highest hydraulic resistance.

Methods and systems for acid regeneration of ion exchange resins are disclosed. Acid resins designed for use in a variety of cleaning application using a water source use a treated, softened, acidic water source according to the invention. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and / or eliminate the need for polymers, threshold reagents and / or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications.

A control unit (1, 1a) for a softening device (2), comprising a primary inlet (4) for untreated water, a primary outlet (7) for blended water, a sensor for determining the water hardness of the untreated water WHraw or the blended water WHblend, a secondary outlet (5), a secondary inlet (6), a bypass line (9), a blending means which can be automatically adjusted for mixing a blended water flow Vblend(t) from a first partial flow (V(t)part1soft of the secondary inlet (6) and a second partial flow V(t)part2raw of the bypass line (9), and an electronic control means (11, 11a), wherein the control means (11, 11a) is designed to readjust the adjustment position of the blending means by means of the determined water hardness in such a fashion that the water hardness in the blended water flow Vblend(t) is adjusted to a predetermined desired value, is characterized in that the control unit (1, 1a) is designed in the form of an external control unit (1, 1a) for the softening device (2), wherein the control unit (1, 1a) has a control unit housing (3), the outer side of which is provided with the primary inlet (4), the primary outlet (7), the secondary outlet (5), and the secondary inlet (6), and wherein the control unit housing (3) contains the sensor, the bypass line (9), the blending means and the electronic control means (11, 11a). The inventive control unit enables partial softening of water on the basis of fully automatic blending, thereby utilizing already existing softening devices.

A material for purification of a semiconductor polishing slurry that without changing of pH value, is capable of efficiently purifying a polishing slurry to thereby not only prevent metal contamination of a polished object as effectively as possible but also achieve recycling of a polishing slurry without any problem; a relevant module for purification of a semiconductor polishing slurry; and a process for purifying a semiconductor polishing slurry with the use thereof. In particular, a material for purification of a semiconductor polishing slurry characterized in that it comprises a fibrous substrate having a functional group capable of forming a metal chelate or such a functional group together with hydroxyl fixed onto at least the surface thereof. This material for purification of a semiconductor polishing slurry is, for example, used in such a manner that it is inserted in a container fitted with polishing slurry inflow port and outflow port while ensuring passage of polishing slurry flow.