Patents Assigned to Kerfoot Technologies, Inc.
  • Publication number: 20210130201
    Abstract: Apparatus and method for removing PFAS compounds from contaminated groundwater or soil includes a well having diffusers for injecting gaseous ozone as bubbles into water in the groundwater or soil formation, a catalytic adsorption canister having an inlet and at least one outlet coupled to the groundwater or soil formation; a control mechanism for supplying gaseous ozone to the well and the catalytic adsorption canister, and a pump in the well, the pump having an inlet for receiving groundwater from an upper portion of the well, a first outlet coupled to a lower portion of the well and a second outlet coupled to the inlet of the catalytic adsorption canister. The catalytic adsorption canister, which can also be used as a stand-alone system for ex-situ treatment of groundwater, includes a mineral catalyst to adsorb PFAS compounds, which are thereafter mineralized and decomposed by exposure of ozone bubbles.
    Type: Application
    Filed: October 20, 2020
    Publication date: May 6, 2021
    Applicant: Kerfoot Technologies, Inc.
    Inventor: William B. Kerfoot
  • Patent number: 9694401
    Abstract: A method of treating a site containing perfluoroalkyl compounds (PFCs) is described. The method and apparatus treats the site with fine oxygen/ozone gas bubbles delivered with a hydroperoxide coating and solution which is activated by self-created temperature or applied temperature to raise the oxidation potential above 2.9 volts. Once begun, the reaction is often self-promulgating until the PFC is exhausted, if PFC concentrations are sufficiently elevated.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: July 4, 2017
    Assignee: KERFOOT TECHNOLOGIES, INC.
    Inventor: William B. Kerfoot
  • Publication number: 20150151993
    Abstract: Disclosed is a new form of reactive ozone and techniques for producing nanobubble suspensions of the reactive ozone. The bubbles entrap a high concentration of ozone, with the ozone orienting a net negative charge outwards and a net positive charge inwards.
    Type: Application
    Filed: December 8, 2014
    Publication date: June 4, 2015
    Applicant: Kerfoot Technologies, Inc.
    Inventor: William B. Kerfoot
  • Publication number: 20150123295
    Abstract: A method and apparatus for hydrocarbon recovery and/or treatment of frac water includes introducing a volume of water into a formation, recovering the introduced water, with the recovered introduced water further comprising suspended hydrocarbon product. The recovered liquid is treated to remove substantial amounts of the suspended hydrocarbon product, provide the treated recovered liquid with a ORP in a range of 150 mv to 1000 mv, and partially desalinated, and is either re-introduced as treated recovered liquid with the ORP into a formation to assist in recovery of additional hydrocarbon deposits in the formation, or is stored to reduce the ORP and then subsequently discharged into surface waters.
    Type: Application
    Filed: November 4, 2013
    Publication date: May 7, 2015
    Applicant: KERFOOT TECHNOLOGIES, INC.
    Inventor: William B. Kerfoot
  • Patent number: 8906241
    Abstract: Disclosed is a new form of reactive ozone and techniques for producing nanobubble suspensions of the reactive ozone. The bubbles entrap a high concentration of ozone, with the ozone orienting a net negative charge outwards and a net positive charge inwards.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: December 9, 2014
    Assignee: Kerfoot Technologies, Inc.
    Inventor: William B. Kerfoot