Kinetico Incorporated

Tangent Company LLC

Gould Inc.

Lyle Edward Kirman

David Francis Rath

James E Bolton

William C Prior

Adam Joseph Arnold

Glenn Graff

Kevin J Elliott

Keith E Brown

Christopher L Hansen

Wayne A Kruper

Kenneth C Seufer, Jr

Edward Robakowski

Christopher S Putka

David H Chew

Kevin James Ryan Elliott

Kenneth C Seufer

A wastewater treatment system includes a biological reactor having anaerobic, anoxic, and aerobic chambers. A lift station including a pump is operatively connected to a tertiary filter downstream of the biological reactor. The lift station receives biologically treated liquid from the tertiary filter and pumps the liquid from the lift station. A filtration subsystem is operatively connected to the lift station. The filtration subsystem receives and filters the liquid pumped by the lift station. The filtration subsystem includes a preliminary filter and a salt-rejecting membrane filter having a recycle conduit operatively connected to recirculate salt-rejecting membrane filter, thereby forming a salt concentration loop between biological reactor and the salt-rejecting membrane filter. A post-filtration subsystem is operatively connected to receive salt-rejecting membrane filter permeate, and includes an adsorbent and oxidation system.

Biological wastewater treatment system containing a salt-rejecting membrane filter and recycle conduit

A wastewater recycling system includes a biological reactor having anaerobic, anoxic, and aerobic chambers. A lift station including a pump is operatively connected to the biological reactor. The lift station receives biologically treated liquid from the biological reactor and pumps the liquid from the lift station. A filtration subsystem is operatively connected to the lift station. The filtration subsystem receives and filters the liquid pumped by the lift station. The filtration subsystem includes a salt-rejecting membrane filter comprising a concentrate recirculation conduit operatively connected to recirculate salt-rejecting membrane filter concentrate to a point along the wastewater recycling system upstream of the salt-rejecting membrane filter, thereby forming a salt concentration loop between said point along the wastewater recycling system and the salt-rejecting membrane filter. A post-filtration subsystem is operatively connected to receive salt-rejecting membrane filter permeate, and comprises a water disinfection system that disinfects the permeate thereby generating potable water.

Method and apparatus for residential water recycling

An apparatus and method for abating scale formation during the purification and demineralization of water in an electrochemical deionization apparatus. In the apparatus and method, scale forming ions in a raw water feed are precipitated at a controlled location remote from the deionization chambers of the deionization apparatus. Concentrate water produced during the deionization process to produce demineralized product water is acidified and circulated through the deionization apparatus to prevent scale formation and build-up in the deionization apparatus.

Electrochemically regenerated water deionization

A method of precipitating scale from water includes providing an electrochemical cell. The electrochemical cell includes a primary cathode chamber including a first electrode therein, a primary anode chamber including a second electrode therein, and a cation exchange membrane separating the primary cathode chamber from the primary anode chamber. A flow of feed water is split into separate input flows to each of the primary cathode chamber and the primary anode chamber. The pH of the water in the primary anode chamber is reduced by electrolysis. The pH of water in the primary cathode chamber is increased by electrolysis, and cations are removed from the water in the primary cathode chamber by forming scale on the first electrode in the primary cathode chamber. Separate treated water output flows, from each of the primary cathode chamber and primary anode chamber, are combined into a combined conditioned water flow.

Hardness reduction apparatus and method

A water treatment apparatus that includes a cation exchange chamber containing a cation exchange resin and an anion exchange chamber containing an anion exchange resin. A bipolar interface is located between the resin chambers and defines a zone of water disassociation. A cathode communicates with the cation exchange chamber through a cation exchange membrane. An anode communicates with the anion exchange chamber through an anion exchange membrane. Dilution or flushing water flows through cathode and anode chambers and conveys captured ions to a drain or other waste connection. A baffle may be used in some configurations to divide a resin chamber into an exhausted resin region and a regenerated resin region and causes incoming water to flow through the exhausted resin region first. The exhausted resin region is located near its associated electrode, thus improving the electrical efficiency of the cell. In an alternate design, the apparatus includes a cathode/anode chamber, an anode chamber and an auxiliary electrode chamber disposed between the cathode/anode chamber and a cation exchange media chamber. An anion exchange membrane separates the cathode/anode chamber from the auxiliary electrode chamber. The anode chamber, cathode/anode chamber and auxiliary electrode chamber are energized in predetermined sequences to create both service cycles which produce softened water with reduced ionic content and cleaning cycles to de-scale the auxiliary electrode chamber and/or anion exchange membrane located between the cathode/anode chamber and the auxiliary electrode chamber.

Electroregeneration apparatus and water treatment method

A method for selectively separating and recovering palladium from an aqueous palladium/tin catalyst solution. The method includes the steps of adjusting the pH of the aqueous solution to a specified pH range thereby precipitating the tin, and producing a soluble form a palladium. The solution can be either pre-filtered or settled and subsequently processed through ion exchange resin in a conventional manner, or processed in an upflow direction through an at least partially fluidized bed of ion exchange resin to remove and concentrate the palladium for recovery.

Process for recovering palladium from a solution

A method of filtering feed liquid including a photoresist substance comprises removing cations from the feed liquid using an ion exchange material. A fine particle filter filters the feed liquid and, in particular, removes dissolved solids from the feed liquid. The material is regenerated with a solution, e.g., a brine solution, which has a pH effective to avoid fouling of at least one of the filter and the ion exchange material. Another embodiment concerns a filtration apparatus including an ion exchange device containing the ion exchange material. A fine particle filtration device removes dissolved solids from the liquid. A device for regenerating the material includes a supply of the regenerating solution.

Filtering photoresist-containing liquid

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.

Water treatment system

A method and apparatus for selectively recovering ions from an aqueous solution and producing deionized water for reuse. When used in a nickel plating process, a rinse water stream is passed through a first cation removing assembly that contains an ion exchange media having a greater affinity for nickel ions than for most or all other ions present in the system. Rinse water processed by the first cation removing assembly is conveyed to a second cation removing assembly and then to an anion removing assembly so that deionized water is produced and is then returned to a rinse bath. Rinse water is passed through the first ion exchange media until substantially all of the ion exchange sites hold a nickel ion. The other cations in the rinse water are captured by the second cation assembly. The first cation assembly is regenerated using a regeneration solution compatible with the plating bath. The regeneration solution after passing through the first cation assembly releases the captured metal ions and the regeneration solution along with the plating ions is returned to the plating bath.

Apparatus and method for recovering materials from process baths

A process is provided for plating a composite structure which includes one surface composed of an aluminum base metal and another surface composed of a ferrous base metal with a thin adherent layer of tin or an alloy of tin. The process comprises contacting the composite structure with a mineral acid containing a source of ions selected from the group consisting of fluoride ions, fluoride containing ions or mixtures thereof to activate the surface of the aluminum base metal and then immersing the composite structure in an aqueous plating bath which contains a mineral acid, a source of ions selected from the group consisting of fluoride ions, fluoride containing ions or mixtures thereof and a source of stannous ions with the stannous ions being present in an amount ranging from about 1 to about 75 grams per liter, for a period of time sufficient to cause tin or tin alloy to be deposited concurrently on the aluminum base metal surface by the exchange of aluminum ions for tin ions and on the ferrous base surface by means of a galvanic couple formed between the aluminum base metal and the ferrous base metal.

Growing community of inventors

Cleveland Heights, OH, United States of America

Lyle Edward Kirman