Abstract: A disinfectant system for intermingling a disinfectant with an effluent to be treated, such as wastewater, to kill pathogens therein, the system enhancing contact between the effluent and the disinfectant to effect a rapid and efficient disinfection action. The system includes an ejector through which a minor portion of the effluent is pumped to produce a motive fluid which induces a disinfectant therein to produce a concentrated disinfectant fluid. Th ejector terminates in a cylindrical diffuser section having a closed end and at least two circumferential series of orifices whereby the disinfectant fluid is discharged therefrom as high velocity jets which project radially with respect to the longitudinal axis of the section.

Abstract: A gravity flow disinfectant contactor adapted to enhance contact between a disinfectant solution such as chlorine and the water to be treated to effect a more rapid and efficient disinfection activity. The contactor is constituted by a rectangular conduit having a cross-sectional diffusion plane adjacent its inlet within which is an array of evenly-spaced diffuser tubes supplied with the disinfectant solution. The tubes each have a row of equi-spaced holes drilled diametrically therethrough to produce side-by-side opposing jets of disinfectant in the diffusion plane at right angles to the cross-flowing water stream. As a consequence, the water flowing through the conduit is subjected to a dense cross fire of multiple jets of disinfectant that are uniformly distributed throughout the diffusion plane and quickly interact with the water within a relatively short downstream distance.

Abstract: An evaporator for converting a liquified gas such as chlorine into a superheated gas. The evaporator is constituted by a pressure vessel having a heat pipe vertically mounted therein, the lower end of the pipe projecting below the vessel and being coupled to a heat source whereby thermal energy from the source is transferred to the interior of the vessel. Liquified gas is fed into the vessel through an inlet pipe to form a pool in the lower zone thereof, in contact with the heat pipe. The gas evaporated from the heated pool is discharged through an outlet pipe.