Sewage disposal process

Abstract

Abstract SEWAGE IS CONVERTED INTO A SUSEFUL NON-POLLUTING PRODUCT GAS, E.G. SYNTHESIS GAS OR FUEL GAS BY DEWATERING MUNICIPAL SANITARY SEWAGE, PRODUCING A THICKENED SLUDGE. THE THICKENED SLUDGE IS MIXED WITH A FLUID SELECTED FROM THE GROUP CONSISTING OF H20, LIQUID HYDROCARBON FUEL, PARTICULATE CARBON SLURRIES IN WATER OR IN A LIQUID HYDROCARBON FUEL IS PRODUCED SUBSEQUENTLY IN THE PROCESS, AND MIXTURES THEREOF TO PRODUCE A FEED MIXTURE STREAM. PREFERABLY THE FEED MIXTURE IS HEATED TO A TEMPERATURE IN THE RANGE OF ABOUT 212 TO 600*F. TO VAPORIZE VOLATILE CONSTITUENTS IN THE FEED MIXTURE AND TO PRODUCE A FEED DISPERSION STREAM. THE FEED DISPERSION IS THEN REACTED BY PARTIAL OXIDATION WITH AN OXYGEN-RICH GAS IN AN UNPACKED FREE-FLOW NON-CATALYTIC SYNTHESIS GAS GENERATOR, AT A TEMPERATURE IN THE RANGE OF ABOUT 1500 TO 3000*F. AND AT A PRESSURE IN THE RANGE OF ABOUT 1 TO 250 ATMOSPHERES TO PRODUCE SYNTHESIS GAS. WATER SEPARATED FROM THE SEWAGE IS PURIFIED AND USED FOR INDUSTRIAL APPLICATIONS OR CONVERTED INTO BY-PRODUCT STEAM BY INDIRECT HEAT EXCHANGE WITH THE PRODUCT GAS. IN A SECOND EMBODIMENT OF THE INVENTION, GARBAGE IS DISPOSED OF BY MIXING BITS OF GARBAGE WITH THICKENED SEWAGE SLUDGE AND THE AFORESAID FLUID THEREBY FORMING A FEED MIXTURE WHICH IS CONVERTED INTO SYNTHESIS GAS BY THE PARTIAL OXIDATION REACTION WITH AN OXYGEN-RICH GAS IN SAID FLOW TYPE GAS GENERATOR. D R A W I N G

Inventors

• 👤 Albert Brent
• 👤 Charles F Teichmann

Bibliographic Details