NIKUNI, a Japanese company which has produced high quality equipment for various water related industries has developed a unique compact micro-bubble generator for use in dissolved air flotation systems, called the KTM. The KTM has a highly precise and sophisticated pumping mechanism that can generate massive quantities of micro-bubbles by means of three hydro-dynamic principles: Negative pressure sucking both air and water simultaneously from each portAir is effectively transferred to the waterPressurized, air-enriched water is dischargedThe pressurized, air-enriched water is transferred into the bottom of the dissolved air flotation tank from where it makes a bubble sparkling formation, spreading and rising up to the water surface pulling fine material, oils, fats, fibres and more with it to form a sludge mat. This mat is then skimmed.