Patents Assigned to Thames Water PLC
  • Apparatus and method for treating a fluid
    Patent number: 5141653
    Abstract: An apparatus and method for on-site treatment of a fluid, such as sewage, utilize a plurality of self-contained, separately housed, and separately transporable modules (2a, 2b,2c) for carrying out one or a sequence of treatment operations on the fluid. There is an inlet (3) whereby the apparatus is connectible with a source of the fluid to be treated and an outlet (4) from the apparatus for discharge of the treated fluid. The apparatus may be moved between different sites.
    Type: Grant
    Filed: March 12, 1991
    Date of Patent: August 25, 1992
    Assignee: Thames Water plc
    Inventors: Alan J. Smith, Jennifer J. Quinn
  • Apparatus and a system for monitoring impurity in a liquid
    Patent number: 5057213
    Abstract: Apparatus 1 for monitoring impurity in a liquid, specifically toxin(s) in activated sewage sludge, comprises a vessel 2 with a plurality of chambers 3 and 4 through which the liquid (sludge) is circulated in use to promote mixing, and a compartment 5 in the vessel in fluid communication with the chambers 3 and 4 and adapted to promote a quiescent settlement zone from which liquid is removable.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: October 15, 1991
    Assignee: Thames Water PLC
    Inventors: John M. C. Reid, Robert B. Nason, David F. James