Apparatus foh effecting purification of liquids by flotation

Abstract

Abstract 1. IN APPARATUS FOR EFFECTING PURIFICATION OF LIQUID, THE COMBINATION OF A. A FLOTATION TANK, B. A BODY OF LIQUID TO BE PURIFIED IN SAID TANK, C. A VESSEL, (THE) D. MEANS FOR INTRODUCING UNDER PRESSURE TO THE BOTTOM OF SAID VESSEL FOR UPWARD FLOW THEREIN A MIXTURE OF AIR AND LIQUID, C. MEANS FOR DISCHARGING A SOLUTION OF AIR AND THE LIQUID FROM THE TOP OF SAID VESSEL TO THE BODY OF LIQUID IN SAID FLOTATION TANK AT A ZONE THEREOF BELOW ITS LIQUID SURFACE WHICH IS AT A DEPTH AT LEAST AS GREAT AS THE DEPTH OF SAID VESSEL TO MAINTAIN THE AIR AND LIQUID IN SAID VESSEL AT A DEFINITE PRESSURE, F. SAID VESSEL BEING SO CONSTRUCTED AND FORMED THAT AIR, AT THE DEFINITE PRESSURE PREVAILING THEREIN, WILL DISSOLVE IN THE LIQUID AND FORM THE SOLUTION OF AIR AND THE LIQUID DURING THEIR UPWARD FLOW IN THE VESSEL, G. SAID DISCHARGING MEANS PROVIDING AN (OBSTRUCTED) UNOBSTRUCTED PATH IN WHICH THE SOLUTION OF AIR AND THE LIQUID FLOWS FROM THE TOP OF SAID VESSEL TO SAID ZONE IN SAID BODY OF LIQUID IN SAID FLOTATION TANK WITHOUT ANY SIGNIFICANT CHANGE IN PRESSURE, AND H. MEANS FOR REMOVING UNDISSOLVED AIR FROM THE TOP OF SAID VESSEL TO THE ATMOSPHERE SO THAT ONLY A SOLUTION OF AIR AND THE LIQUID WILL FLOW FROM THE TOP OF SAID VESSEL TO SAID FLOTATION TANK IN THE PATH OF FLOW PROVIDED BY SAID DISCHARGING MEANS. D R A W I N G

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