Kinetico Incorporated

Battelle Memorial Institute

Addressograph Multigraph Corporation

Revive Environmental Technology, LLC

Keith E Brown

Slawomir Winecki

Darwin Argumedo

Joshua James

Joseph Casciano

Michael M Miller

Stuart L Park

Jeffrey L Ellis

David Arthur Holley

Kavitha Dasu

Christopher Gordon Scheitlin

Aaron Frank

Lindy E Dejarme

Nathan Bryant

Doug Hendry

Dan Garbark

Jimmy D Buth

Russel R Sirabian

Amy M Heintz

John D Miller

Evan A Gordon

John P Tallarico

Christopher L Hansen

Paul John Peterson

Lyle Edward Kirman

William C Prior

Eric Sklar

Ian Haggerty

Jerome P Kovach

Steven M Hoopes

Patrick Norris

Francis A Red

Vivek Lal

Tom McGuinness

Douglas Hendry

John Tallarico

Stephen H Rosansky

Dale J Spangenberg, Jr

Edward Robakowski

Kenneth C Seufer, Jr

Matthew D Kitzmiller

Mark J Brotman

Jimmie L Hunt

James W Kewley

George R Jordan, Jr

Ron Kindel

Ken Weight

Christopher McConkey

Matthew Vaughan

Amy Dindal

Per- and polyfluoroalkyl substances (PFAS) are destroyed by oxidation in supercritical conditions. PFAS in water can be concentrated and prepared for destruction in a pretreatment phase. Following annihilation of the PFAS in supercritical conditions to levels below 5 parts per trillion (ppt), the water effluent can be used to recover heat, returned to sub-critical conditions, and then released back into the environment.

Destruction of PFAS via an oxidation process and apparatus suitable for transportation to contaminated sites

Per- and polyfluoroalkyl substances (PFAS) are destroyed by oxidation in supercritical conditions. PFAS in water is concentrated in a reverse osmosis step and salt from the resulting solution is removed in supercritical conditions prior to destruction of PFAS in supercritical conditions.

Salt separation and destruction of PFAS utilizing reverse osmosis and salt separation

A control system for a water treatment apparatus that includes a control valve assembly having a servo chamber in which a stationary port defining signal ports is located. A regeneration control disc sealingly engages and rotates on a planar surface of the port disc and selectively communicates fluid signals to water pressure operated components within the control valve. An electric motor located in a dry chamber is operatively coupled to the regeneration control disc and rotates the disc during a regeneration cycle. An encoder coupled to the control disc monitors its position and movement. A turbine assembly monitors water treated or to be treated and is electronically coupled to a regeneration controller. A sensor emits pulses related to rotation of the usage turbine and communicates these pulses to the controller which uses this information to determine when a regeneration is needed whereupon the drive motor is appropriately energized.

Control valve and control method for a water treatment system, water softener or filter

A method and apparatus for treating water including a tank having an inlet and outlet and a water treatment material or resin within the tank. A control valve assembly having multiple, separable levels houses a water usage metering mechanism and a regeneration control mechanism, each having associated turbines. An inlet/bypass valve communicates source water with the tank inlet or directly to a system outlet. When the treatment material is exhausted, it is regenerated by actuating the bypass valve to communicate the source water with the system outlet. The turbine driven regeneration control then sequences the steps of regeneration, including opening a control valve to communicate inlet water to a venturi in order to aspirate brine solution and deliver to the tank outlet. The brine solution passes through the treatment material and is discharged through the tank inlet which is communicated to a system drain. At the conclusion of this step, brine solution is blocked from the venturi and the tank is slow rinsed. Subsequently, the communication of the venturi with the tank inlet is blocked, but water is allowed to flow through the venturi and refill the brine reservoir. Water at the outlet is then communicated to the tank outlet to perform a fast rinse. At the conclusion of this step, the source water is communicated to the tank inlet and the bypass step is terminated.

Water treatment system

A water treatment system includes a weak acid cation resin where a portion of the feed water is exposed to the resin and then blended with untreated feed water to produce a stream of water with reduced mineral scaling and potential. Feed water is split into a first fluid stream, fed to a bypass conduit and a second fluid stream that is conveyed through a weak acid cation treatment bed. After passing through the bed, the treated fluid is combined with the bypass fluid stream to produce a blended feed water at the outlet. The ratio of the bypass fluid stream and treated fluid stream is a function of pH and L.S.I. A controller and associated sensors may control the relative flow rates between the bypass fluid stream and the treated stream to maintain a predetermined water parameter such pH, L.S.I., etc. within a predetermined range.

Method and apparatus for reducing the mineral scaling potential of water used in a heated appliance

A filter apparatus is provided which includes a first filter membrane element (), and a second bacterial filter membrane element. The first viral filter element () is capable of treating water at a first second flow rate and is adapted to remove contaminants which are larger than a first size, while the second bacterial filter element () is capable of treating water at a second higher flow rate and is adapted to remove contaminants which are larger than a second contaminant size. The first and second filter elements (), () may be commonly housed within a sealed housing. An accumulating vessel () is placed in fluid communication with an outlet of the first filter element () and an outlet of the second filter element (). The filter apparatus includes a duck bill type check valve () made of an antimicrobial material intermediate the second filter element () and a dispensing faucet ().

Multiple barrier filter apparatus

A water treatment system including a plurality of treatment tanks containing a water treatment material and defining a fluid flow path through the material extending between a first tank port and a second tank port. A first remotely controlled three way valve associated with the first tank port controls the fluid communication of a source manifold and a regeneration discharge manifold with the first tank port of each tank. A second, remotely controlled three way valve controls the fluid communication of a product receiving manifold and a regeneration chemistry supply manifold with the second port of each tank. A regeneration control monitors the loading of each tank and initiates regeneration in a given tank when that tank reaches a predetermined exhaustion level. A regeneration anticipator is operative to initiate early regeneration of a given tank if it determines that a second tank will reach exhaustion before the first tank completes its regneration, if the first tank is allowed to proceed to the predetermined exhaustion level. The treatment tanks form part of a subassembly mounted on a common platform which is skid mounted to facilitate movement and service.

A water treatment system including a pair of tank assemblies 110, 112 interconnected by a valve module 114 for controlling the communication of water to be treated to an on-line tank and the regeneration of an exhausted tank. Each tank assembly includes a compartment containing a water softening resin 125 and a compartment centering an iron filter media. The valve module is connected to a regeneration solution reservoir 150 by brine conduits 164, 220. A pumping assembly 192 automatically transfers a predetermined amount of a supplemental regenerant fluid from a well 168 into the regeneration solution reservoir at the conclusion of a regeneration cycle. The pumping assembly includes upper and lower chambers 194a, 196a communicating with the supplemental regenerant fluid reservoir 168 and brine supply conduits 164, 220 respectively. The lower chamber 196a contracts and expands in response to the depressurization and pressurization of the brine conduits and produces attendant expansion and contraction in the upper chamber 194a. The upper chamber draws a predetermined amount of regenerant fluid from the reservoir 168 and injects the fluid into the regeneration solution reservoir 150. Check valves 186, 202 control the direction of flow of the regenerant fluid from the regenerant well 168.

Water treatment apparatus

A water softening apparatus and method for reducing odor in, and improving the taste of, problem water, including a pair of treatment tanks and a control valve assembly for determining which tank is on-line, and which tank is off-line, and for controlling the regeneration of the off-line tank. An exhausted tank is taken off-line and partially regenerated by communicating a regeneration solution from a reservoir to the tank and passing the solution through a resin compartment after which the solution is discharged to drain. After a predetermined quantity of regeneration solution is passed through the tank, the resin compartment is slowly rinsed using treated water from the on-line tank. Prior to fully rinsing the off-line tank, the fluid flow is terminated leaving a diluted regeneration solution in the off-line tank thereby keeping the off-line tank in a 'high solids' condition. Just prior to placing the off-line tank, on-line, treated water from the on-line tank is communicated to the off-line tank and passed through the resin compartment at a flow rate higher than the fluid flow rate during the rinsing step such that the off-line tank is fully backwashed prior to being placed on-line. To further inhibit the propagation of taste and odor degrading bacteria, a growth retarding agent is automatically added to the regeneration solution reservoir prior to initiating a regeneration cycle by a pumping arrangement that operates automatically in response to sensing the flow of regeneration solution to the control valve assembly.

Water softening apparatus

A water treatment system including a pair of tank assemblies 110, 112 interconnected by a valve module 114 for controlling the communication of water to be treated to an on-line tank and the regeneration of an exhausted tank. Each tank assembly includes a compartment containing a water softening resing 125 and a compartment centering an iron filter media. The valve module is connected to a regeneration solution reservoir 150 by brine conduits 164, 220. A pumping assembly 192 automatically transfers a predetermined amount of a supplemental regenerant fluid from a well 168 into the regeneration solution reservoir at the conclusion of a regeneration cycle. The pumping assembly includes upper and lower chambers 194a, 196a communicating with the supplemental regenerant fluid reservoir 168 and brine supply conduits 164, 220 respectively. The lower chamber 196a contracts and expands in response to the depressurization and pressurization of the brine conduits and produces attendant expansion and contraction in the upper chamber 194a. The upper chamber draws a predetermined amount of regenerant fluid from the reservoir 168 and injects the fluid into the regeneration solution reservoir 150. Check valves 186, 202 control the direction of flow of the regenerant fluid from the regenerant well 168.

A deionization method and apparatus comprising separate cation and anion removing sections 10a, 10b, the cation section having separate tanks 14, 16 and the anion section having separate tanks 24, 26. Respective cation and anion control valve assemblies 18, 28 control the fluid communication between various components of respective sections and control the regeneration cycle of exhausted cation and anion tanks, respectively. Each valve assembly includes independent water usage monitoring devices 118 which, upon sensing a predetermined quantity of water discharge by its respective valve assembly, effects regeneration of an associated tank. An exhausted cation tank is regenerated by feeding cation regeneration fluid by way of the cation control valve assembly into the exhausted cation tank in a counterflow direction for a predetermined time. Decationized water from the on-line cation tank is then passed through the exhausted cation tank in a counterflow direction to effect a counterflow rinse. An exhausted anion tank is similarly regenerated using an anion regeneration fluid and passing it through the exhausted tank in a counterflow direction, followed by a counterflow rinse using deionized water from the on-line anion tank. The anion section also includes a flushing circuit 46 that flushes residual anion regeneration fluid from a supply line 40a and the anion control valve assembly and also effects a counterflow slow rinse prior to a counterflow fast rinse. Water for the flushing step is obtained from a valve operating chamber 102a by way of a restricted passage 218 so that a back pressure in the piston chamber is maintained in order to exert a valve operating force on a valve 78 when necessary.

Deionization method and apparatus

An improved water softener control valve having a housing defining a servo-control chamber that encloses concentrically mounted water usage and regeneration control discs. Each disc is incrementally rotatable by ratchet drives that are driven by water usage and regeneration control turbines, respectively, through associated reduction gear trains. The ratchet drive for the water usage disc includes a pawl that is engageable with the regeneration control disc, which upon predetermined movement in the water usage disc effects movement in the regeneration control disc to initiate a regeneration cycle. A rotatable insert is provided in the housing for manually rotating the regeneration control disc.

Control valve for water softeners

An apparatus and method for incrementally advancing a shaft by a selected rotational amount. The apparatus includes a belt trained about a pair of space driven pulleys, the belt forming both first and second runs between the pulleys. Each pulley is associated with a shaft and is mounted for rotation in one direction only, with brake means designed to resist rotation of the pulley in the opposite direction. Means are provided for alternately deflecting the first and second runs of the belt to advance each shaft by an incremental amount in the one direction. In this manner, either or both shafts can be used for whatever purposes an incrementally advancing shaft is needed or desired.

Apparatus and method for incrementally rotating a shaft

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Solon, OH, United States of America

Keith E Brown